From owner-biophysics@net.bio.net Wed May 01 23:00:00 1996
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From: pdelaney@anesthlab.ab.umd.edu (Paul A. Delaney)
Newsgroups: bionet.biophysics
Subject: Re: Binaural recordings
Date: Thu, 02 May 1996 13:37:53 GMT
Organization: UMAB Anesthesiology
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You might want to consider stipulating that it be listened to with
headphones or earphones.  While I'm no expert, it seems that acoustic
bone conduction may been important.  Intriguing project...



From owner-biophysics@net.bio.net Wed May 01 23:00:00 1996
Path: biosci!LEX.LCCC.EDU!rcb1
From: rcb1@LEX.LCCC.EDU (Ron Blue)
Newsgroups: bionet.biophysics
Subject: Re: Binaural recordings
Date: 2 May 1996 05:31:34 -0700
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On 29 Apr 1996, Ben Craven wrote:

> I teach a course on perception, and would like to be
>>>>CUT>>
How would you explain the following?   You are running on a treadmill
get off quickly look forward and see the room going forward while you
are standing still.  You hear two sounds, one at 200 hertz and the
other at 208 hertz which produces a standing eeg wave of 8 hertz.
You take two large coins between your thumb and first finger move them
back and forth quickly and see three coins.  You press your fist together
put them apart quickly and position them about 1 inch apart and feel
them being attracted toward each other like a magnet.

If you want my explaination let me know.  Ron Blue


From owner-biophysics@net.bio.net Wed May 01 23:00:00 1996
Path: biosci!daresbury!keele!uknet!uknet!newsfeed.ed.ac.uk!news.stir.ac.uk!oss!bjc
From: bjc@oss.stir.ac.uk (Ben Craven)
Newsgroups: bionet.biophysics
Subject: Binaural recordings
Date: 29 Apr 1996 09:59:32 GMT
Organization: University of Stirling
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I teach a course on perception, and would like to be
able to demonstrate a binaural recording, ie one made
with microphones in the ear canals of a dummy head
with realistic outer ears.  I've sorted out the making
of replicas of my pinnae, and i assume now that it's just
a matter of making a head-shaped object, attaching the
pinnae, and shoving one small microphone in each ear 
canal.

Does anybody know of any problems that I haven't foreseen?

Thanks

Ben Craven
Stirling University
Scotland

PS Please e-mail me, because my newsreader doesn't always
work properly.  bjc@cs.stir.ac.uk



From owner-biophysics@net.bio.net Thu May 02 23:00:00 1996
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From: Eric Fairfield <fairfiel@trail.com>
Newsgroups: bionet.biophysics
Subject: Re: EtBr nicking
Date: Mon, 29 Apr 1996 19:11:25 -0600
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Many of these experiments have been done multiple times.

Try

W.R. Bauer
J. Vinograd
D. Clayton
B. Hudson

or older editions of Molecular Cloning or a Biochemistry text (1975 or 
so)

Eric Fairfield

From owner-biophysics@net.bio.net Fri May 03 23:00:00 1996
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Newsgroups: bionet.biophysics
Subject: sustainable production 2040
Message-ID: <318A61E6.16C@ATO.DLO.NL>
From: Joost Mogendorff <G.J.E.Mogendorff@ATO.DLO.NL>
Date: Fri, 03 May 1996 12:43:34 -0700
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As part of the STD-programme (Sustainable Technology Development; a Dutch governmental programme) 
everybody with original, innovating ideas for Sustainable High-Tech Food Production in the year 
2040 is invited to send in pioneering thoughts.	
Prizes of 25,000 Dutch Guilders (approx. 15,000 USDollars) will be granted to the two best ideas 
on how to make High-Tech Food Crops Production possible. The targeted production system should be 
based on the following (technological) starting points:
 - production units use only solar light as energy source  
 - optimized supply of light to the plants
 - optimized conversion and storage of energy
 - application of specific sensors and actuators
 - total-crop principle: utilization of all wastes and by-products
 - production is local and demand-oriented
 - integration of the above mentioned technologies

The contest has opened May 1, 1996. The ideas have must have reached the jury not later than July 
1, 1996.
Full details of the contest and background information on the STD-programme, can be found in WWW 
page

http://www.bib.wau.nl/ato/hta/index.html

E-mail:   hta.page@ato.dlo.nl

Joost Mogendorff
Netherlands

From owner-biophysics@net.bio.net Fri May 03 23:00:00 1996
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From: Rob <Sharke@sharke.demon.co.uk>
Newsgroups: bionet.women-in-bio,sci.bio.ethology,sci.bio,sci.chem,bionet.biophysics,sci.research.careers
Subject: Please read this 'cos its important!!
Date: Sat, 4 May 1996 14:51:44 +0100
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Hello guyz and galz

I'm 17 and live in England, when I am 18 I want to take a year out and
get an internship or work in an area of marine biology/conservation.
Does anybody out there know of any possibilities ?

If so please e-mail me privately:

Rob@sharke.demon.co.uk

Thanks in advance

Rob Annis


From owner-biophysics@net.bio.net Sat May 04 23:00:00 1996
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From: Alan \"Uncle Al\" Schwartz <uncleal0@ix.netcom.com>
Newsgroups: bionet.women-in-bio,sci.bio.ethology,sci.bio,sci.chem,bionet.biophysics,sci.research.careers
Subject: Re: Please read this 'cos its important!!
Date: 4 May 1996 22:40:00 GMT
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Rob <Sharke@sharke.demon.co.uk> wrote:
>Hello guyz and galz
>
>I'm 17 and live in England, when I am 18 I want to take a year out and
>get an internship or work in an area of marine biology/conservation.
>Does anybody out there know of any possibilities ?
>
>If so please e-mail me privately:
>
>Rob@sharke.demon.co.uk
>
>Thanks in advance


Why don't you look up Scripps Oceanographic Institute in La Jolla, 
California?  Hawaii is a good place to enquire.  Iowa is not.

-- 
Alan "Uncle Al" Schwartz
UncleAl0@ix.netcom.com  ("zero" before "@")
http://www.netprophet.co.nz/uncleal/          (naughty beyond measure;
"Quis custudiet ipsos custodes?"  The Net!     funny beyond endurance)



From owner-biophysics@net.bio.net Sat May 04 23:00:00 1996
Path: biosci!agate!cgl!itssrv1.ucsf.edu!itsa.ucsf.edu!bgold
From: Bert Gold <bgold@itsa.ucsf.edu>
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: Sun, 5 May 1996 08:36:12 -0700
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April 22, 1996

Walking back from the bank to the hospital today I was prompted to
buy several large juicy navel oranges. I've been eyeing oranges for many
weeks now, but my wife and I have a long standing disagreement about
who picks the best ones.  I thought the oranges she chose at a fruit
stand, just outside Half Moon Bay yesterday, were puny; she again
suggested I always pick the oversized, dried up ones.
Today, though, my oranges were winners: Sweet, juicy and large; 
just the way I like them.

In the news the past several days, as you've probably heard, Vitamin C
requirements (RDAs, Required Daily Allowance, set by the National Research
Council, the nation's highest scientific authority) for adult males have
been revalued upward.  Not modestly either:  But three-fold, and still
the upper limit is poorly defined.  It seems an intramural researcher
at NIH finally got the funding go ahead to do some of the experiments
which Linus Pauling and Albert Szent-Gyorgyi always longed to do
before the end of their lives, but were denied funding for.

It is notable that in this latest work (1), seven men in their twenties
were fed increasing doses of Vitamin C after being starved for
it in their diet.  Although they never showed signs of scurvy,
each volunteer did report feeling uncomfortable when deprived 
of Vitamin C.  The NIH authors note that because the subjects
of their study were young men in their 20's, the results are
limited to this subject group. 

The vivid image of Szent-Gyorgyi standing in front of Whitman Auditorium
in Woods Hole holding a bottle of glyoxyl in one hand and Vitamin C
in the other is permanently etched in my memory.  I'll not easily
forget the hypothesis of 'radical scavenging' which Szent-Gyorgyi
put to us that day:  He said that he and Pauling had been talking
about the central importance of OXYGEN in human metabolism
and explained that he had been concerned for a good deal of time about 
reactions generating singlet oxygen.  These, produced in abundance
during mitochondrial "charge transfer" in liver parenchyma, and other
aerobically active tissues, must absorb electrons pairwise in order to
avoid causing damage.

In 1931, Pauling discovered the superoxide radical, which, though
produced in minute quantities as an unwanted byproduct of oxidative
phosphorylation, has enormous destructive capacity if not defused (2).
During lectures given at UC Berkeley in the 80s,  Pauling paid
tribute to the remarkable specificity of the enzymatic system that
neutralizes it: Superoxide dismutase; at the same time, however, 
he noted that this enzyme does not defuse the lesser, but still significant
intracellular destructive capacity of singlet oxygen or the hydroxide radical
(and unkown to him at the time, the NO radical).  

Superoxide dismutase transforms superoxide radicals to peroxide which can
then be eliminated as water after the action of peroxidase and catalase.
But what is the body to do with all the unpaired electrons such a process
would generate? Szent-Gyorgyi told that oxygen itself could absorb unpaired
electrons if only it were conjugated to carbon in the form of a double
carbonyl: the simplest such compound being glyoxyl, commonly found in human
liver, for this compound had sufficient electron delocalization to provide
something of an electron sink. And, the supply of glyoxyl is renewable
through the action of the glutathione-S-tranferase system, present in
liver mitochondria.  Further, Szent-Gyorgyi told us excitedly, two
englishmen and a german, H.D. Dakin, H.W. Dudley and C. Neuberg had, in
1913 discovered that methylated-glyoxyl could be transformed to a potent
energy source itself, lactic acid, through the action of glyoxylase,
which they discovered in that year.  So, in one fell swoop, Szent-Gyorgyi
had connected for us the relationship between oxygen radical and one
carbon metabolism.  I promise I will discuss this relationship in the
next few weeks, when I write another essay, tentatively titled,
Folic Acid and I.

In comments honoring Szent-Gyorgyi on the occasion of his 82nd
birthday, Linus Pauling recalled Vitamin C's discovery by Szent-Gyorgyi
in 1928.  Pauling noted that Szent-Gyorgyi had written in 1939 (4) that
although organisms were generally well adapted to their surroundings,
that the destruction of the natural environment endangered that
adapatation. "I have a strong faith in the perfection of the human
body", Szent-Gyorgyi wrote in 1939, "and I think that vitamins are an
important factor in its coordination with its surroundings.  Vitamins,
if properly understood and applied, will help us to reduce human suffering
to an extent which the most fantastic mind would fail to imagine." (3)

On the day that I met him in Woods Hole, Szent-Gyorgyi told us he and Pauling
(three Nobel prizes) between them suggested that significant increases
in Vitamin C intake were almost certainly required by an adult body,
perhaps especially at times when oxygen production was increased.
Szent-Gyorgyi had insisted in a book he had written two years before,
that Vitamin C, especially when complexed with manganese in
the presence of oxygen, could synthesize a free radical form, as well and as
easily as it could form a dehydroascorbate, oxidized form in the
presence of copper or iron and in alliance with an enzyme he'd
discovered in plants in 1931 and named 'ascorbic acid oxidase.'
Szent-Gyorgyi insisted that it was in some sense the equilibrium between
the various oxidized and reduced forms of ascorbate which provided its
multifarious activities.

And yet, this week, fully 18 years after the memorable talk by
Szent-Gyorgyi which I just described, the Vitamin C RDA for men
has been adjusted three-fold upward.

It makes me wonder at the brazen inefficiency of the research
'establishment'...

The knowledge that both Linus and Albe died
without ever attaining a modicum of funding for their final
nutrition project confirms some of my worst fears about
our ways of deciding what research is worthy in this
country.  

My hope in writing this is that our children will not suffer
because of the lack of wisdom of their leaders in
making decision about what to and what not to study.

Bert Gold
San Francisco

References

(1) Levine, M.; Conry-Cantilena, C.; Wang, Y.; Welch, R.W.; Washko, P.W.;
Dhariwal, K.R.; Park, J.B.; Lazarev, A.; Graumlich, J.G., King, J.;
Cantilena, L.R. (1996) Vitamin C pharmacokinetics in healthy 
volunteers:  Evidence for a recommended dietary allowance.
Proc. Natl. Acad. Sci. USA; 93, 3704-3709.

(2) Marinacci, B. (1995) Linus Pauling in His Own Words, New York, Simon &
Shuster.

(3) Kaminer, B., ed. (1977) Search and Discovery, A tribute to Albert
Szent-Gyorgyi, New York, Academic Press.

(4) Szent-Gyorgyi, A. (1939) On Oxidation, Fermentation, Vitamins, Health
and Disease.  Baltimore, Williams and Wilkins.



From owner-biophysics@net.bio.net Sun May 05 23:00:00 1996
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From: klenchin@macc.wisc.edu (Dima Klenchin)
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: Sun, 05 May 96 22:55:18 GMT
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In article <Pine.A32.3.93.960505082737.8841A-100000@itsa.ucsf.edu>,
   Bert Gold <bgold@itsa.ucsf.edu> wrote:

Newsgroups: 
>bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bi
>onet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience
>,sci.med,sci.research.careers,talk.politics,talk.politics.medicine

>My hope in writing this is that our children will not suffer
>because of the lack of wisdom of their leaders in
>making decision about what to and what not to study.

Judging by the number of newsgroups crossposted, Bert Gold fully qualifies
as spammer... 
		:-)) Just kidding

Seriously: Dr. Gold has obviously very strong opinion on the subject. The
Q: is it really confirmed by research, or the current state of affair
is simply that kilogram amounts of ascorbic acid don't hurt (apparently)?

- Dima



From owner-biophysics@net.bio.net Sun May 05 23:00:00 1996
Path: biosci!agate!howland.reston.ans.net!swrinde!elroy.jpl.nasa.gov!lll-winken.llnl.gov!usenet
From: Chris Barry <chbarry@mackiller.llnl.gov>
Newsgroups: bionet.women-in-bio,sci.bio.ethology,sci.bio,sci.chem,bionet.biophysics,sci.research.careers
Subject: Re: Please read this 'cos its important!!
Date: Mon, 06 May 1996 16:26:57 -0700
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bodega bay research institute might alos be a good place to inquire

Rob wrote:
> 
> Hello guyz and galz
> 
> I'm 17 and live in England, when I am 18 I want to take a year out and
> get an internship or work in an area of marine biology/conservation.
> Does anybody out there know of any possibilities ?
> 
> If so please e-mail me privately:
> 
> Rob@sharke.demon.co.uk
> 
> Thanks in advance
> 
> Rob Annis

From owner-biophysics@net.bio.net Sun May 05 23:00:00 1996
Path: biosci!CC.USU.EDU!arsphys
From: arsphys@CC.USU.EDU (Phil Harrison)
Newsgroups: bionet.biophysics
Subject: Protein lists
Date: 6 May 1996 08:21:09 -0700
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Can anyone suggest any lists that deal with
protein purification and analysis.  I am doing some
purification work and would like to be able to discuss
some problems.

Phil Harrison
arsphys@cc.usu.edu
Philip A. Harrison                                  Phone: 801-797-3209
Plant Physiologist                                  Fax: 801-797-3075
USDA-Agricultural Research Service    E-Mail: arsphys@cc.usu.edu
Forage and Range Research Lab
Utah State University, UMC 6300
Logan, UT 84322-6300


From owner-biophysics@net.bio.net Sun May 05 23:00:00 1996
Path: biosci!galaxy.ucr.edu!library.ucla.edu!agate!cgl!itssrv1.ucsf.edu!itsa.ucsf.edu!bgold
From: bgold@itsa.ucsf.edu (Bert Gold)
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Followup-To: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Date: 6 May 1996 12:37:24 GMT
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Dima,

My reading of the aforemented PNAS paper by Levine et al., (1996)
disagrees with the very high dose vitamin C protocols which were
advocated by Pauling and Szent-Gyorgyi, without providing any firm
evidence on the issue, and without mentioning these great 
investigators by name.

Conclusions in the PNAS paper are limited to a new RDA for
ascorbate for men in their 20s.

Bert Gold
San Francisco

Dima Klenchin (klenchin@macc.wisc.edu) wrote:

: Q: is it really confirmed by research, or the current state of affair
: is simply that kilogram amounts of ascorbic acid don't hurt (apparently)?

: - Dima



From owner-biophysics@net.bio.net Mon May 06 23:00:00 1996
Path: biosci!bcm.tmc.edu!pendragon!news.msfc.nasa.gov!newsfeed.internetmci.com!globe.indirect.com!usenet
From: "John E. Kuslich" <johnk@indirect.com>
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: Tue, 07 May 1996 15:12:42 -0600
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Scott Russell wrote:
> 
> In article <318E9B47.285B@indirect.com>,
>    "John E. Kuslich" <johnk@indirect.com> wrote:
> >Bert Gold wrote:
> >> <<<<SNIP>>>
> >
> >> And yet, this week, fully 18 years after the memorable talk by
> >> Szent-Gyorgyi which I just described, the Vitamin C RDA for men
> >> has been adjusted three-fold upward.
> >>
> >> It makes me wonder at the brazen inefficiency of the research
> >> 'establishment'...
> >>
> >>
> >> Bert Gold
> >> San Francisco
> >>
> >> References
> >
> ><<<further SNIP>>
> >
> >Just look at research on "Cold Fusion", "Global Warming", and "The Ozone
> >Hole" for further examples of the poor quality of some recent so-called
> >scientific research.
> >
> >Chaos theory eliminated any hope of long term weather prediction, and
> >yet we still have "researchers" at major universities doing computer
> >simulation of weather.
> >
> >Modern science has gone "politically correct"; look at the reaction to
> >that book entitled "The Bell Curve".  It was widely renounced by many
> >so-called scientists who never took the time to read it!!!
> >
> >Oh well...
> >
> >John E. Kuslich
> 
> Now wait a minute.
> 
> (1) None of the topics in the first paragraph have been eliminated as
> possibilities, the first two are just not supported by sufficient evidence to
> warrant the conclusions that were made.

I think you effectively illustrate attitudes that lead us to accept conclusions of and act upon 
 "junk " science.  I believe that if you examine the case for all three of the topics 
mentioned, you will be led to the inescapable conclusion that "Junk" science is alive and well. 
 Some of these nutty ideas only gain popular acceptance because of the tendency for the liberal 
media to publicize them - they fit well into the environmentalist agenda.

"Possibilities" don't necessarily merit action which will cause serious economic dislocations. 
The "Carbon Tax" comes to mind.

> 
>   (2) That weather is ultimately unpredictable does not mean that extending
> forecasts is not useful.  Chaos theory indicated that predicting the behavior
> of self-iterating systems using incomplete data can be expected to be
> unsuccessful over the course of a certain amount of time.
> 

You misstate my point.

Chaos theory indicates quite convincingly that there are severe limits on the ability of 
computers to make long term weather predictions because we simply 1) can never model the 
physical weather interactions adequately, 2) we can never have enough knowledge of initial 
condidtions to put into our model to get long term results.  We might as well put research 
money into perpetual motion.  That was my point.



>   (3) "The Bell Curve" received almost unanimous negative reviews from
> scientists because measuring intelligence was treated as if: (a) we knew what
> intelligence was; (b) we could measure it reproducibly and accurately; and (c)
> that it is possible to any of this in a culturally neutral manner.  Most were
> unimpressed by the numerous charts and graphs because underlying them, the
> science was weak and the "parameters" were meaningless.  If the IQ test
> measures anything, it measures the ability of people to take IQ tests, and it
> is not even entirely reliable for that.  Given the absence of compelling data,
> the book has a pernicious effect on society and its conclusions ignore
> too many societal effects on those measured.  The use of "science" to achieve
> social ends based on race should doomed to fail because, this approach like
> Nazi "science," is not based on a single uncontested fact.

Gees.  The point I was making is perfectly illustrated by your paragraph above.

Real research and real science do not question the political implications of the truth.  I 
don't know if the conclusions of this book are good ones or not.  The point is, this kind of 
subject matter is avoided by science for politcal reasons.  That can hardly be a method that 
will lead us to the truth!!  It is like the Vatican criticizing fertility research based on 
it's position on birth control.  If you don't do birth control research, you won't arrive at 
the truth as to which methods are effective.  Similarly, if you cannot state certain hypothyses 
and examine the implications of such an hypothyses because they are not politically correct, 
then you are not doing science. Nazi science is as bad as un-Nazi science, or Vatican science 
or Zionist science or Environmentalist science.

If it is limited in scope or subject for political reasons, it is not science.  That was my 
point.

> -- 
John E. Kuslich     WPcrak for Wordperfect
johnk@indirect.com  WDcrak for MS Word 
Password Recovery   EXcrak for MS Excel 
602 863 9274 voice  QPcrak for Quattro Pro 
602 548 1993 fax    LOcrak for Lotus 123
Password Removal    QWcrak for Quicken 
Our WEB Site http://www.indirect.com/www/johnk/
>>>>>>>>You Hack'em,  We CRAK'em<<<<<<<<<<<<<

From owner-biophysics@net.bio.net Mon May 06 23:00:00 1996
Path: biosci!agate!cgl!itssrv1.ucsf.edu!itsa.ucsf.edu!bgold
From: bgold@itsa.ucsf.edu (Bert Gold)
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Followup-To: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Date: 7 May 1996 19:25:43 GMT
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I agree with Mr. Wagner when he suggests that Mr. Kuslich
has not properly sorted the wheat from the chaff in the
scientific literature.

In addition, it is precisely the point that science has become
overly politicized which I was trying to make in writing my post.

In fact, regular readers of my essays will remember that the Woods
Hole meeting I proposed specifically excluded media and was wholly
aimed at gathering a fair and honest consensus from scientists before
presenting the results to the public.

However, the scientific ruling elite have chosen not to follow this
wise course, preferring noisy public debate and namecalling to
reasoned, well thought-out discourse.

Our leaders need to rethink their positions.

Bert Gold
San Francisco


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From: wagner@pacific.mps.ohio-state.edu (Lukas Wagner)
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: 7 May 1996 12:06:34 -0400
Organization: Ohio State University Physics Dept.

John E. Kuslich <johnk@indirect.com> wrote:

>Just look at research on "Cold Fusion", "Global Warming", and "The Ozone 
>Hole" for further examples of the poor quality of some recent so-called 
>scientific research.  
>
The ozone hole is quite real.  You might look up articles by Sherwood 
Rowland written in the last 10 years if you don't believe me, or if 
you have qualms about the quality of the research.  The evidence 
on global warming is mixed to the best of my knowledge.  
I believe that the basis for the conclusions is careful work on ice cores.
Why you put either of these in the same category as cold fusion 
is beyond me; perhaps you can cite review articles in real journals
that indicate the poor quality of the science?  

>Chaos theory eliminated any hope of long term weather prediction, and 
>yet we still have "researchers" at major universities doing computer 
>simulation of weather.  
>
Generously, this sentence suggests that you haven't read the Journal
of Atmospheric Research recently. If getting to a library is troublesome,
catch NCAR's web site: http://www.ncar.ucar.edu/
for some idea of what people who study weather actually do.

The Lyapunov spectrum of weather models depends on the number of modes
one includes.  The number of days over which it's feasible to 
forecast weather depends on the largest Lyapunov exponent.
You might look at J. Curry, Commun. Math. Phys. 60, 193 (1978).

I hope that what you do for a living is less half-assed than your post.

Science has some real problems; excessive politicization is certainly 
one of them.  What you seem to cite as symptoms aren't.


-- 
						-Lukas Wagner
					wagner@pacific.mps.ohio-state.edu



From owner-biophysics@net.bio.net Mon May 06 23:00:00 1996
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From: srussell@ou.edu (Scott Russell)
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: Tue, 07 May 96 18:54:37 GMT
Organization: University of Oklahoma
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In article <318E9B47.285B@indirect.com>,
   "John E. Kuslich" <johnk@indirect.com> wrote:
>Bert Gold wrote:
>> <<<<SNIP>>>
>
>> And yet, this week, fully 18 years after the memorable talk by
>> Szent-Gyorgyi which I just described, the Vitamin C RDA for men
>> has been adjusted three-fold upward.
>> 
>> It makes me wonder at the brazen inefficiency of the research
>> 'establishment'...
>> 
>> 
>> Bert Gold
>> San Francisco
>> 
>> References
>
><<<further SNIP>>
>
>Just look at research on "Cold Fusion", "Global Warming", and "The Ozone 
>Hole" for further examples of the poor quality of some recent so-called 
>scientific research.  
>
>Chaos theory eliminated any hope of long term weather prediction, and 
>yet we still have "researchers" at major universities doing computer 
>simulation of weather.  
>
>Modern science has gone "politically correct"; look at the reaction to 
>that book entitled "The Bell Curve".  It was widely renounced by many 
>so-called scientists who never took the time to read it!!!
>
>Oh well...
>
>John E. Kuslich

Now wait a minute.  

(1) None of the topics in the first paragraph have been eliminated as 
possibilities, the first two are just not supported by sufficient evidence to 
warrant the conclusions that were made.

  (2) That weather is ultimately unpredictable does not mean that extending 
forecasts is not useful.  Chaos theory indicated that predicting the behavior 
of self-iterating systems using incomplete data can be expected to be 
unsuccessful over the course of a certain amount of time.

  (3) "The Bell Curve" received almost unanimous negative reviews from 
scientists because measuring intelligence was treated as if: (a) we knew what 
intelligence was; (b) we could measure it reproducibly and accurately; and (c) 
that it is possible to any of this in a culturally neutral manner.  Most were 
unimpressed by the numerous charts and graphs because underlying them, the 
science was weak and the "parameters" were meaningless.  If the IQ test 
measures anything, it measures the ability of people to take IQ tests, and it 
is not even entirely reliable for that.  Given the absence of compelling data, 
the book has a pernicious effect on society and its conclusions ignore 
too many societal effects on those measured.  The use of "science" to achieve 
social ends based on race should doomed to fail because, this approach like 
Nazi "science," is not based on a single uncontested fact.

=========================================================================
Scott D. Russell                     Internet:  srussell@ou.edu
Dept of Botany & Microbiology      ->http://www.ou.edu/cas/botany-micro/
 & Noble Electron Microscopy Lab   ->http://www.ou.edu/research/electron/
University of Oklahoma, Norman OK    Phone:  1-405-325-6234
 73019-0245   USA                    FAX:    1-405-325-7619
=========================================================================



From owner-biophysics@net.bio.net Mon May 06 23:00:00 1996
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From: "j.y." <yonjo00@dons.ac.usfca.edu>
Newsgroups: bionet.biophysics
Subject: this a test
Date: 7 May 1996 03:27:45 GMT
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test



From owner-biophysics@net.bio.net Mon May 06 23:00:00 1996
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From: "John E. Kuslich" <johnk@indirect.com>
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: Mon, 06 May 1996 18:37:27 -0600
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Bert Gold wrote:
> <<<<SNIP>>>

> And yet, this week, fully 18 years after the memorable talk by
> Szent-Gyorgyi which I just described, the Vitamin C RDA for men
> has been adjusted three-fold upward.
> 
> It makes me wonder at the brazen inefficiency of the research
> 'establishment'...
> 
> The knowledge that both Linus and Albe died
> without ever attaining a modicum of funding for their final
> nutrition project confirms some of my worst fears about
> our ways of deciding what research is worthy in this
> country.
> 
> My hope in writing this is that our children will not suffer
> because of the lack of wisdom of their leaders in
> making decision about what to and what not to study.
> 
> Bert Gold
> San Francisco
> 
> References

<<<SNIP>>

Just look at research on "Cold Fusion", "Global Warming", and "The Ozone 
Hole" for further examples of the poor quality of some recent so-called 
scientific research.  

Chaos theory eliminated any hope of long term weather prediction, and 
yet we still have "researchers" at major universities doing computer 
simulation of weather.  

Modern science has gone "politically correct"; look at the reaction to 
that book entitled "The Bell Curve".  It was widely renounced by many 
so-called scientists who never took the time to read it!!!

Oh well...

John E. Kuslich


  


-- 
John E. Kuslich     WPcrak for Wordperfect
johnk@indirect.com  WDcrak for MS Word 
Password Recovery   EXcrak for MS Excel 
602 863 9274 voice  QPcrak for Quattro Pro 
602 548 1993 fax    LOcrak for Lotus 123
Password Removal    QWcrak for Quicken 
Our WEB Site http://www.indirect.com/www/johnk/
>>>>>>>>You Hack'em,  We CRAK'em<<<<<<<<<<<<<

From owner-biophysics@net.bio.net Tue May 07 23:00:00 1996
Path: biosci!rutgers!uwm.edu!newsfeed.internetmci.com!btnet!zetnet.co.uk!dispatch.news.demon.net!demon!d-access.demon.co.uk
From: user <user@d-access.demon.co.uk>
Newsgroups: bionet.biophysics
Subject: *MEDLINE on the web*
Date: Wed, 08 May 1996 14:47:23 +0100
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From owner-biophysics@net.bio.net Tue May 07 23:00:00 1996
Path: biosci!galaxy.ucr.edu!library.ucla.edu!agate!cgl!itssrv1.ucsf.edu!itsa.ucsf.edu!bgold
From: bgold@itsa.ucsf.edu (Bert Gold)
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Followup-To: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Date: 8 May 1996 01:15:55 GMT
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Mr. Kuslich's suggestion that science can somehow be cleansed of
human values and thus be made more pure is a misunderstanding of
what science is and does.

Science is a human endeavor.  As such it manifests all of the frailties
and foibles of any deeply human undertaking.  It cannot be politically
'cleansed' of value:  Further, why would you want to?

Science, as practiced, should be ethical.  It should aspire to revere
its creators, not dimish them.  Bronowski and Pauling wrote eloquently
on these points.  Pauling always suggested that the goal of science was
clearly to diminish human suffering.  That is why he was awarded a
Nobel Prize in Peace; for helping to orchestrate the Test Ban Treaty;
it is also notable that he was blacklisted, and almost indicted for
treason for that very same cause.

Science is political.  But it should not be guided solely by a political
agenda:  That is why it has (for the last couple of hundred years) been
done mostly at Universities, where tenure (an archaic, but important
system for guarding unpopular ideas) has been guaranteed.

Tenure is not perfect, witness the case of Paul Simmelweiss,
who died a pauper in the streets of Vienna for having the
audacity to suggest that surgeons should wash themselves
between autopsy and entering the operating theatre.

No, tenure is not perfect, but it is better than nothing....

We are now, in the process, in this country, of doing away with all
that!  Humanistic science, tenure, Universities (as sanctuaries for
learning) are all being destroyed.

Won't you who are criticizing the blind alleys into which science
inevitably goes admit your own imperfection:  So that you can help
to save a tradition of inquiry which, although imperfect, used to
be credible, ethical and respectable.  That was my goal in writing
this essay:  To acknowledge that we have lost something if we do
not clearly respect the humility of our own enterprise of discovery.

And perhaps the most important sense of humility we have lost
is the recognition that Pauling and Szent-Gyorgyi (and Bronowski)
were GIANTS!  And now, we stand deeply impoverished by their
loss and wonder whether life has any meaning at all, or shall
we just all toss it in, and let a bunch of robots, without
a political agenda, proceed on their own path toward discovery.

A path which clearly does not lead to a world which combines
'Science and Human Values', the title of one of Bronowski's books,
but leads to knowledge of, by and for a world of robots. Such a vision
feels to me more out of the tradition of Asimov or Bradbury, than
that of Pauling, Szent-Gyorgyi or Bronowski.  Though all five of
these authors manifest some kind of genius, the latter three were clearly
of this earth.  The former two spent a good deal of their time
on what I think was a lesser planet, one of their own creation.

Bert Gold
San Francisco










Dima Klenchin (klenchin@macc.wisc.edu) wrote:
: In article <Pine.A32.3.93.960505082737.8841A-100000@itsa.ucsf.edu>,
:    Bert Gold <bgold@itsa.ucsf.edu> wrote:

: Newsgroups: 
: >bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bi
: >onet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience
: >,sci.med,sci.research.careers,talk.politics,talk.politics.medicine

: >My hope in writing this is that our children will not suffer
: >because of the lack of wisdom of their leaders in
: >making decision about what to and what not to study.

: Judging by the number of newsgroups crossposted, Bert Gold fully qualifies
: as spammer... 
: 		:-)) Just kidding

: Seriously: Dr. Gold has obviously very strong opinion on the subject. The
: Q: is it really confirmed by research, or the current state of affair
: is simply that kilogram amounts of ascorbic acid don't hurt (apparently)?

: - Dima



From owner-biophysics@net.bio.net Tue May 07 23:00:00 1996
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From: hrubin@b.stat.purdue.edu (Herman Rubin)
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: 7 May 1996 20:29:21 -0500
Organization: Purdue University Statistics Department
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In article <318E9B47.285B@indirect.com>,
John E. Kuslich <johnk@indirect.com> wrote:
>Bert Gold wrote:
>> <<<<SNIP>>>

>> And yet, this week, fully 18 years after the memorable talk by
>> Szent-Gyorgyi which I just described, the Vitamin C RDA for men
>> has been adjusted three-fold upward.
 
>> It makes me wonder at the brazen inefficiency of the research
>> 'establishment'...

			.................

>Chaos theory eliminated any hope of long term weather prediction, and 
>yet we still have "researchers" at major universities doing computer 
>simulation of weather.  

That we cannot predict the precise time at which rain will start, or
things to that effect, does not mean that we cannot learn by judicious
use of simulation.  Choas theory tells us that exactly what will happen
is very sensitive to initial conditions, but that we cannot tell exactly
where that tornado will strike is no reason not to give a tornado warning.

			...................
-- 
Herman Rubin, Dept. of Statistics, Purdue Univ., West Lafayette IN47907-1399
hrubin@stat.purdue.edu	 Phone: (317)494-6054	FAX: (317)494-0558

From owner-biophysics@net.bio.net Tue May 07 23:00:00 1996
Path: biosci!galaxy.ucr.edu!library.ucla.edu!info.ucla.edu!agate!cgl!itssrv1.ucsf.edu!itsa.ucsf.edu!bgold
From: bgold@itsa.ucsf.edu (Bert Gold)
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Followup-To: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Date: 8 May 1996 20:30:55 GMT
Organization: UCSF, ITS
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Dr. Deneke,

If you bother to read Pauling, you will find that he not only advocated
MEGAdose amounts of vitamin C, but was an ardent advocate of establishing
a new RDA for ascorbate as well, based upon more controlled indicators
than relief from scurvy; this is precisely the work which Levine
et. al have now done, establishing a new RDA.

The current study only establishes a new RDA for healthy, men
non-smokers in their 20s.  Dr. Pauling suggested that he thought
anti-oxidant requirements would increase with increasing age.
Levine et al. do not comment on this, or the RDA for women.

Dr. Pauling suggested many other functions for Vitamin C than
anti-oxidant effect:  Few of these have been tested in the
time which intervenes between his suggestions and now.

It is notable that Dr. Levine did not cite Dr. Pauling or Dr.
Szent-Gyorgyi in his PNAS publication.

Further, in my telephone conversation with Dr. Levine last week,
he admitted to me that funding at NIH for nutrition was "political".

Bert Gold
San Francisco


: Pauling and Szent-Gyorgyi are my heros too, but neither a conspiracy or  
: scientific incompetence is necessary to explain delays in jumping to recommend 
: large doses of vitamin C.  In fact chemistry, physiology etc. of ascorbic acid 
: has been under intense investigation over the last several decades.  It is well 
: known that ascorbate, under some conditions acts a a pro-oxidant rather than an 
: antioxidant.  As for all nutritional additives it is extremely difficult to 
: determine whether consumption of high levels of the pure product may cause 
: toxic effects which are neutralized by other components present in the natural 
: food sources. Do large doses of ascorbate protect, deplete, or block induction 
: of other antioxidants?  I can probably find instances of all of these effects 
: in the literature of the past 5 years. In short, its not that simple.  Evidence 
: for multiple benefits from increasing dietary intake of ascorbate and other 
: antioxidants by increased consumption of fruits and vegetables is very 
: convincing. The health benefits of ingesting large levels of purified 
: antioxidants of any kind are proving harder to analyse.  Unfortunately we are 
: not yet to the point where we can usefully micro-manage our nutrition. Take 
: megadoses of vitamins if you chose, at your own risk, but many of us would 
: prefer to keep on eating our fruits and veggies.  

From owner-biophysics@net.bio.net Tue May 07 23:00:00 1996
Path: biosci!daresbury!nntp-trd.UNINETT.no!nntp.uio.no!news.cais.net!news.mathworks.com!newsfeed.internetmci.com!in1.uu.net!pixie.tridom.com!usenet
From: mp@eng.tridom.com (Mike Pitcher)
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: 8 May 1996 18:50:19 GMT
Organization: AT&T Tridom
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I agree that the priorities may need a little adjusting and that the
research funding process is not perfect. Since human health and
well-being is such an important (and expensive) activity one would
think that it would get top priority. Oh well.

For what it's worth, let me share what I have found by trial and error.
I live in Atlanta which is an area not particularly friendly to allergy
sufferers. For 20 years, I would get respiratory problems two times a
year (spring and fall) that would start with sore throat, coughing,
sometimes leading to runny nose, watery eyes, occasionally sinus
problems, etc. The Drs would inevitably prescribe an antibiotic and
maybe cough syrup (if cough was a problem), Seldane, pseudephedrine
hydrochloride (wasn't good for my BP), or whatever.

Well, last year, I had enough of this crap. No fault of the Drs, but I
decided to try vit C. Starting with 1000mg dose (500mg twice a day)
last fall and now am down to 500mg once a day. The usual fall and spring
resp. problems never appeared. I got a few sniffles, but *nothing*
compared to what I usually get. No change in work conditions, same
house, same car, etc. Only significant change (besides another yr older
and a raise :-) ), is the vit C. Coincidence? I think not.

Bottom line is, I think the RDA is totally out of whack. There needs to
be a *lot* more research done with vitamins in general and focus
on what it takes to make people function properly, rather than try
to fix what's broken. Seems I remember an adage:
  An ounce of prevention is worth a pound of cure.
How true.



Mike Pitcher 
email: mp@eng.tridom.com



From owner-biophysics@net.bio.net Tue May 07 23:00:00 1996
Path: biosci!daresbury!not-for-mail
From: Alexander Spirov <spirov@iephb.ru>
Newsgroups: bionet.biophysics
Subject: Reprints online
Date: 8 May 1996 18:58:42 +0100
Lines: 72
Sender: lpddist@mserv1.dl.ac.uk
Distribution: bionet
Message-ID: <4mqnci$5lg@mserv1.dl.ac.uk>
Encoding: 71 TEXT
Original-To: "'bionet.general'" <bioforum@dl.ac.uk>,
 "'bionet.biophysics'"
 <biophys@dl.ac.uk>,
 "'bionet.biology.computational'"
 <comp-bio@dl.ac.uk>

        This announcement is being cross-posted to several newsgroups.
        Please, excuse the duplication.

Dear All,

The following two paper are now available as 
PostScript files via anonymous ftp. 
=========================
ftp://ftp.iephb.ru/pub/spirov/celelect.ps (840K) 
+ 
ftp://ftp.iephb.ru/pub/spirov/celelectpics.zip (133K)
is postscript version of
        the paper that appeared in the JOURNAL OF ELECTRO &
        MAGNETOBIOLOGY. 1994, 13, (2), 149-158.
        "Electrical activity of biomembranes and vectorization of
        intracellular processes"
        by
        V.A.Kaimanovich,
        E.M.Krupitski,
        A.V.Spirov

                We consider theoretical mechanisms of the
                influence of intracellular electric fields on
                directed polymerization and orientation of
                microtubules.  A generalization of Fromherz'
                model of self-organization in the ionic channels
                system of biomembranes is used for a simulation
                of the interaction between the membrane electric
                activity and the behaviour of submembrane
                cytoskeletal components.  A similar interaction
                between the membrane electric activity and
                directed polymerization of microtubules can also
                play a fundamental role in neuronal mechanisms
                of learning and memory.
			<<celelectpics.zip contains PS file with
			color figures for the paper>>

HTML version see 
http://www.iephb.ru/celelect1.html

----------------------------------------------------------------
ftp://ftp.iephb.ru/pub/spirov/seaurchin.zip (440KB) 
is ZIP-file with postscript version of
        the paper that appeared in the JOURNAL THEORETICAL
        BIOLOGY, 1993, 161, 491-504.
        "The Change of Initial Symmetry in the Pattern-Form
        Interaction Model of Sea Urchin Gastrulation"
        by
        Alexander V. Spirov

                The characteristic feature of pattern-form
                interaction models is feedback loop from
                biochemical pattern formation to form changes in
                the developing embryo. The models are directed
                towards prediction of changes of the embryo
                surface geometry and biochemical pattern. We
                deal with an investigation of the mechanisms of
                "amplification" of non-linear response of a
                morphogens reaction-diffusion system due to
                changes of geometry in the developing object.
                Potentiality of approach is demonstrated by
                simulation of gastrulation and the following
                morphogenesis of the sea urchin embryo.

HTML version see 
http://www.iephb.ru/symbrk.html
=======================================

The pub/spirov/index file contains an index of the other files.
	



From owner-biophysics@net.bio.net Tue May 07 23:00:00 1996
Path: biosci!rutgers!gatech!news.cse.psu.edu!uwm.edu!vixen.cso.uiuc.edu!newsfeed.internetmci.com!swrinde!cs.utexas.edu!geraldo.cc.utexas.edu!netnews.uthscsa.edu!usenet
From: S. Deneke
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: 8 May 1996 17:01:43 GMT
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In article <Pine.A32.3.93.960505082737.8841A-100000@itsa.ucsf.edu>, Bert Gold 
<bgold@itsa.ucsf.edu> writes:

>April 22, 1996
>
>Walking back from the bank to the hospital today I was prompted to
>buy several large juicy navel oranges. I've been eyeing oranges for many
>weeks now, but my wife and I have a long standing disagreement about
>who picks the best ones.  I thought the oranges she chose at a fruit
>stand, just outside Half Moon Bay yesterday, were puny; she again
>suggested I always pick the oversized, dried up ones.
>Today, though, my oranges were winners: Sweet, juicy and large; 
>just the way I like them.
>
>In the news the past several days, as you've probably heard, Vitamin C
>requirements (RDAs, Required Daily Allowance, set by the National Research
>Council, the nation's highest scientific authority) for adult males have
>been revalued upward.  Not modestly either:  But three-fold, and still
>the upper limit is poorly defined.  It seems an intramural researcher
>at NIH finally got the funding go ahead to do some of the experiments
>which Linus Pauling and Albert Szent-Gyorgyi always longed to do
>before the end of their lives, but were denied funding for.
>
>It is notable that in this latest work (1), seven men in their twenties
>were fed increasing doses of Vitamin C after being starved for
>it in their diet.  Although they never showed signs of scurvy,
>each volunteer did report feeling uncomfortable when deprived 
>of Vitamin C.  The NIH authors note that because the subjects
>of their study were young men in their 20's, the results are
>limited to this subject group. 
>
>The vivid image of Szent-Gyorgyi standing in front of Whitman Auditorium
>in Woods Hole holding a bottle of glyoxyl in one hand and Vitamin C
>in the other is permanently etched in my memory.  I'll not easily
>forget the hypothesis of 'radical scavenging' which Szent-Gyorgyi
>put to us that day:  He said that he and Pauling had been talking
>about the central importance of OXYGEN in human metabolism
>and explained that he had been concerned for a good deal of time about 
>reactions generating singlet oxygen.  These, produced in abundance
>during mitochondrial "charge transfer" in liver parenchyma, and other
>aerobically active tissues, must absorb electrons pairwise in order to
>avoid causing damage.
>
>In 1931, Pauling discovered the superoxide radical, which, though
>produced in minute quantities as an unwanted byproduct of oxidative
>phosphorylation, has enormous destructive capacity if not defused (2).
>During lectures given at UC Berkeley in the 80s,  Pauling paid
>tribute to the remarkable specificity of the enzymatic system that
>neutralizes it: Superoxide dismutase; at the same time, however, 
>he noted that this enzyme does not defuse the lesser, but still significant
>intracellular destructive capacity of singlet oxygen or the hydroxide radical
>(and unkown to him at the time, the NO radical).  
>
>Superoxide dismutase transforms superoxide radicals to peroxide which can
>then be eliminated as water after the action of peroxidase and catalase.
>But what is the body to do with all the unpaired electrons such a process
>would generate? Szent-Gyorgyi told that oxygen itself could absorb unpaired
>electrons if only it were conjugated to carbon in the form of a double
>carbonyl: the simplest such compound being glyoxyl, commonly found in human
>liver, for this compound had sufficient electron delocalization to provide
>something of an electron sink. And, the supply of glyoxyl is renewable
>through the action of the glutathione-S-tranferase system, present in
>liver mitochondria.  Further, Szent-Gyorgyi told us excitedly, two
>englishmen and a german, H.D. Dakin, H.W. Dudley and C. Neuberg had, in
>1913 discovered that methylated-glyoxyl could be transformed to a potent
>energy source itself, lactic acid, through the action of glyoxylase,
>which they discovered in that year.  So, in one fell swoop, Szent-Gyorgyi
>had connected for us the relationship between oxygen radical and one
>carbon metabolism.  I promise I will discuss this relationship in the
>next few weeks, when I write another essay, tentatively titled,
>Folic Acid and I.
>
>In comments honoring Szent-Gyorgyi on the occasion of his 82nd
>birthday, Linus Pauling recalled Vitamin C's discovery by Szent-Gyorgyi
>in 1928.  Pauling noted that Szent-Gyorgyi had written in 1939 (4) that
>although organisms were generally well adapted to their surroundings,
>that the destruction of the natural environment endangered that
>adapatation. "I have a strong faith in the perfection of the human
>body", Szent-Gyorgyi wrote in 1939, "and I think that vitamins are an
>important factor in its coordination with its surroundings.  Vitamins,
>if properly understood and applied, will help us to reduce human suffering
>to an extent which the most fantastic mind would fail to imagine." (3)
>
>On the day that I met him in Woods Hole, Szent-Gyorgyi told us he and Pauling
>(three Nobel prizes) between them suggested that significant increases
>in Vitamin C intake were almost certainly required by an adult body,
>perhaps especially at times when oxygen production was increased.
>Szent-Gyorgyi had insisted in a book he had written two years before,
>that Vitamin C, especially when complexed with manganese in
>the presence of oxygen, could synthesize a free radical form, as well and as
>easily as it could form a dehydroascorbate, oxidized form in the
>presence of copper or iron and in alliance with an enzyme he'd
>discovered in plants in 1931 and named 'ascorbic acid oxidase.'
>Szent-Gyorgyi insisted that it was in some sense the equilibrium between
>the various oxidized and reduced forms of ascorbate which provided its
>multifarious activities.
>
>And yet, this week, fully 18 years after the memorable talk by
>Szent-Gyorgyi which I just described, the Vitamin C RDA for men
>has been adjusted three-fold upward.
>
>It makes me wonder at the brazen inefficiency of the research
>'establishment'...
>
>The knowledge that both Linus and Albe died
>without ever attaining a modicum of funding for their final
>nutrition project confirms some of my worst fears about
>our ways of deciding what research is worthy in this
>country.  
>
>My hope in writing this is that our children will not suffer
>because of the lack of wisdom of their leaders in
>making decision about what to and what not to study.
>
>Bert Gold
>San Francisco
>
>References
>
>(1) Levine, M.; Conry-Cantilena, C.; Wang, Y.; Welch, R.W.; Washko, P.W.;
>Dhariwal, K.R.; Park, J.B.; Lazarev, A.; Graumlich, J.G., King, J.;
>Cantilena, L.R. (1996) Vitamin C pharmacokinetics in healthy 
>volunteers:  Evidence for a recommended dietary allowance.
>Proc. Natl. Acad. Sci. USA; 93, 3704-3709.
>
>(2) Marinacci, B. (1995) Linus Pauling in His Own Words, New York, Simon &
>Shuster.
>
>(3) Kaminer, B., ed. (1977) Search and Discovery, A tribute to Albert
>Szent-Gyorgyi, New York, Academic Press.
>
>(4) Szent-Gyorgyi, A. (1939) On Oxidation, Fermentation, Vitamins, Health
>and Disease.  Baltimore, Williams and Wilkins.
>
>

Pauling and Szent-Gyorgyi are my heros too, but neither a conspiracy or  
scientific incompetence is necessary to explain delays in jumping to recommend 
large doses of vitamin C.  In fact chemistry, physiology etc. of ascorbic acid 
has been under intense investigation over the last several decades.  It is well 
known that ascorbate, under some conditions acts a a pro-oxidant rather than an 
antioxidant.  As for all nutritional additives it is extremely difficult to 
determine whether consumption of high levels of the pure product may cause 
toxic effects which are neutralized by other components present in the natural 
food sources. Do large doses of ascorbate protect, deplete, or block induction 
of other antioxidants?  I can probably find instances of all of these effects 
in the literature of the past 5 years. In short, its not that simple.  Evidence 
for multiple benefits from increasing dietary intake of ascorbate and other 
antioxidants by increased consumption of fruits and vegetables is very 
convincing. The health benefits of ingesting large levels of purified 
antioxidants of any kind are proving harder to analyse.  Unfortunately we are 
not yet to the point where we can usefully micro-manage our nutrition. Take 
megadoses of vitamins if you chose, at your own risk, but many of us would 
prefer to keep on eating our fruits and veggies.  

From owner-biophysics@net.bio.net Tue May 07 23:00:00 1996
Path: biosci!rutgers!uwm.edu!lll-winken.llnl.gov!nntp.coast.net!torn!ccshst05.uoguelph.ca!ccshst01!cfares
From: cfares@uoguelph.ca (Christophe Fares)
Newsgroups: bionet.biophysics
Subject: Axial diffusion of membrane proteins
Date: 8 May 1996 15:33:21 GMT
Organization: University of Guelph
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NNTP-Posting-Host: ccshst01.uoguelph.ca
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I don't know if this is the right newsgroup to ask this question, but I'll
give it a shot anyway. I'm looking for the rates of motions of small
membrane proteins (spanning the membrane once or twice). Of particular
interest to me is the axially symmetric reorientation rate of a membrane 
protein in a membrane bilayer. If anyone out there is an expert on this 
topic, could he/she please fill me in and/or send a reference to a good 
review article?

--
	Christophe Fares
	                           \\///
                                   (.. )                          
        -----------------------o00-(_)--00o---------
	|Address:Physics Dept.			   |
	|	MacNaughton Bldg (Rm 014)	   |
	|	University of Guelph		   |
	|	Guelph, Ont.	N1G 2W1		   |
	|Phone:	(519)-824-4120 X8542 or X8541(lab) |
	|	(519)-823-8111 (home)		   |
	|E-mail: cfares@uoguelph.ca		   |
	|	 mox@physics.uoguelph.ca	   |
	|	 chris@magique.physics.uoguelph.ca |               
	|Website: http://www.uoguelph.ca/~cfares   |
	--------------------------------------------
 
 

From owner-biophysics@net.bio.net Tue May 07 23:00:00 1996
Path: biosci!rutgers!uwm.edu!vixen.cso.uiuc.edu!newsfeed.internetmci.com!info.ucla.edu!nnrp.info.ucla.edu!usenet
From: Richard Kondo <rkondo@ephys.ucla.edu>
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: Wed, 08 May 1996 09:37:27 -0700
Organization: UCLA
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References: <Pine.A32.3.93.960505082737.8841A-100000@itsa.ucsf.edu> <318E9B47.285B@indirect.com> <4mo6if$9vs@frazier.uoknor.edu> <318FBCCA.355B@indirect.com>
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John E. Kuslich wrote:
> 
> Scott Russell wrote:
> >
> > In article <318E9B47.285B@indirect.com>,
> >    "John E. Kuslich" <johnk@indirect.com> wrote:
> > >Bert Gold wrote:
> > >> <<<<SNIP>>>
> > >
> > >> And yet, this week, fully 18 years after the memorable talk by
> > >> Szent-Gyorgyi which I just described, the Vitamin C RDA for men
> > >> has been adjusted three-fold upward.
> > >>
> > >> It makes me wonder at the brazen inefficiency of the research
> > >> 'establishment'...
> > >>
> > >>
> > >> Bert Gold
> > >> San Francisco
> > >>
> > >> References
> > >
> > ><<<further SNIP>>
> > >
> > >Just look at research on "Cold Fusion", "Global Warming", and "The Ozone
> > >Hole" for further examples of the poor quality of some recent so-called
> > >scientific research.
> > >
> > >Chaos theory eliminated any hope of long term weather prediction, and
> > >yet we still have "researchers" at major universities doing computer
> > >simulation of weather.
> > >
> > >Modern science has gone "politically correct"; look at the reaction to
> > >that book entitled "The Bell Curve".  It was widely renounced by many
> > >so-called scientists who never took the time to read it!!!
> > >
> > >Oh well...
> > >
> > >John E. Kuslich
> >
> > Now wait a minute.
> >
> > (1) None of the topics in the first paragraph have been eliminated as
> > possibilities, the first two are just not supported by sufficient evidence to
> > warrant the conclusions that were made.
> 
> I think you effectively illustrate attitudes that lead us to accept conclusions of and act upon
>  "junk " science.  I believe that if you examine the case for all three of the topics
> mentioned, you will be led to the inescapable conclusion that "Junk" science is alive and well.
>  Some of these nutty ideas only gain popular acceptance because of the tendency for the liberal
> media to publicize them - they fit well into the environmentalist agenda.

	Theories such as 'global warming' and the 'ozone hole' do not 
fall in the same category as 'cold fusion'.  Science is driven by 
hypotheses and theories, and the history of science is replete with the 
rise and fall of many theories.

	There is ongoing debate about the merits of the ones you 
mention, in which many scientists support the ideas and some do not.  
Obviously, you do not agree with the conclusions, but you present no 
data to buttress your point.  You just summarily dismiss the theories 
and the atmospheric studies regarding them as 'junk' science. 

> "Possibilities" don't necessarily merit action which will cause serious economic dislocations.
> The "Carbon Tax" comes to mind.

	Sounds as if you have a political agenda as well.


> >   (2) That weather is ultimately unpredictable does not mean that extending
> > forecasts is not useful.  Chaos theory indicated that predicting the behavior
> > of self-iterating systems using incomplete data can be expected to be
> > unsuccessful over the course of a certain amount of time.
> >
> 
> You misstate my point.
> 
> Chaos theory indicates quite convincingly that there are severe limits on the ability of
> computers to make long term weather predictions because we simply 1) can never model the
> physical weather interactions adequately, 2) we can never have enough knowledge of initial
> condidtions to put into our model to get long term results.  We might as well put research
> money into perpetual motion.  That was my point.

	Attempting to predict the weather in Fargo, North Dakota at any 
particular time is entirely different from making estimations about 
changes in the average global temperature and other parameters.  
Different differential equations are involved in these two 
probelms.  Chaos theory is relevant in the first problem, not the 
second.

	And, are you suggesting that all the work being done to 
increase the speed of computers for simulations of air flow over a 
wing, nuclear explosions, dynamics of molecules, (the list goes on) is 
a waste of money and time?

Finally,

	While I share Dr. Gold's concern regarding how decisions are 
made regarding science grant dollars (my future in science depends in 
part on it), I do not believe that the example he cites, sufficiently 
supports the idea of 'brazen inefficiency' in science which might be 
easily remedied.  The history of science is erratic - some ideas find 
acceptance easily and rapidly and are eventually found to be wrong, as 
some ideas are accepted slowly - supported only by a few people working 
alone (how long did it take for the notion that proton gradients across 
the mitochondrial membrane drive ATP synthesis to be accepted, many 
years in the wilderness did Mitchell work).  Human factors such as 
'politics', 'who is a friend of who,' etc.  undoubtedly, affect what 
ideas are accepted and pursued, but I doubt that the 'system' can be 
anything more than tweaked with regards its efficiency in the pursuit 
of the 'truth'.  The problem, as I see it, is that there appears to be 
many more scientists chasing fewer dollars.  However, this is not the 
same problem as scientific efficiency.

Richard Kondo
Cardiovascular Research Lab
UCLA

	<snip>

From owner-biophysics@net.bio.net Tue May 07 23:00:00 1996
Path: biosci!daresbury!nntp-trd.UNINETT.no!nntp.uio.no!news.cais.net!van-bc!news.rmii.com!usenet
From: Andrea Reiman <shasta@rmii.com>
Newsgroups: bionet.biophysics
Subject: Endo/ecto calories
Date: 8 May 1996 21:23:20 GMT
Organization: Rocky Mountain Internet Inc.
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-- 
Can anyone give me an estimate for about how many calories an 
average ectotherm uses (per day) verses an endotherm?


From owner-biophysics@net.bio.net Wed May 08 23:00:00 1996
Path: biosci!CYLLENE.UWA.EDU.AU!xywang
From: xywang@CYLLENE.UWA.EDU.AU ("Xueyong Wang")
Newsgroups: bionet.biophysics
Subject: Electrode visualisation
Date: 8 May 1996 19:44:22 -0700
Organization: BIOSCI International Newsgroups for Molecular Biology
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Dear All,

   We tried to impale retrogradely (Fast Blue) labelled neurons in
 brain slices and do some intracellular recordings if possible. We filled the 
electrodes with Lucifer Yellow dissolved in 1M LiCl (it seems not to 
be dissolved in any solution containing K ion !), however, this just
killed the cell quickly no matter whether the cell was fast
blue labelled or not. 

Any help and suggestions are greatly appreciated

X. Wang
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Department of Physiology
The University of Western Australia
Nedlands, Perth 6907, AUSTRALIA
Tel: 61-9-3803559; Fax: 61-9-3801025
Emai: xywang@cyllene.uwa.edu.au
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

From owner-biophysics@net.bio.net Wed May 08 23:00:00 1996
Path: biosci!galaxy.ucr.edu!library.ucla.edu!agate!howland.reston.ans.net!newsfeed.internetmci.com!castle.nando.net!not-for-mail
From: ghconkli@bessel.nando.net (Gconklin)
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: 9 May 1996 06:43:21 -0400
Organization: Nando.Net
Lines: 20
Message-ID: <4msi89$jt9@bessel.nando.net>
References: <4mqk1n$hah@cosmos.uthscsa.edu> <4mr09v$14q1@itssrv1.ucsf.edu>
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Xref: biosci bionet.general:21568 bionet.biology.cardiovascular:957 bionet.cellbiol:4649 bionet.glycosci:676 bionet.biophysics:1958 bionet.molbio.ageing:2709 bionet.molbio.proteins:7845 bionet.neuroscience:14017 sci.med:122897 sci.research.careers:10178 talk.politics.medicine:51311

In article <4mr09v$14q1@itssrv1.ucsf.edu> bgold@itsa.ucsf.edu (Bert Gold) writes:
+Dr. Deneke,
+
+
+Further, in my telephone conversation with Dr. Levine last week,
+he admitted to me that funding at NIH for nutrition was "political".
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Bert Gold
+San Francisco
+
+
   Steve believes, Bert, that all his political statments are
true science.  If Pauling can be as severely criticized as he
was, then anyone can.  Rational research into vitamins and other
foods which cannot be patented and sold on prescription will be
ridiculed by the medical-industrial establishment forever.  If
the medical establishment could ridicule the germ theory of
disease for years and years, it can ridicule anyting....and will.



From owner-biophysics@net.bio.net Wed May 08 23:00:00 1996
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From: Gerald Pollack <gpollack@bio1.lan.mcgill.ca>
Newsgroups: bionet.biophysics
Subject: Re: Electrode visualisation
Date: 9 May 1996 13:24:45 GMT
Organization: Dept. of Biology, McGill University
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Someone (Molecular Probes?) sells a potassium salt of LY.
Are you sure that the problem is the lithium, and not light-induced cell death of LY-filled 
cells (i.e.unintentional photoinactivation)?


From owner-biophysics@net.bio.net Wed May 08 23:00:00 1996
Path: biosci!VAX.CS.HSCSYR.EDU!Spadaroj
From: Spadaroj@VAX.CS.HSCSYR.EDU (Joe Spadaro)
Newsgroups: bionet.biophysics
Subject: PHYS REG CONFERENCE
Date: 9 May 1996 10:22:59 -0700
Organization: BIOSCI International Newsgroups for Molecular Biology
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Dear colleagues,
        This is a follow-up on the next "PHYSICAL REGULATION" conference of
the Society for Physical Regulation in Biology and Medicine (SPRBM) in
Chicago, Oct. 9-12, 1996.

        The Program Committee Chair (Prof. Subrata Saha) has asked me to
say that the ABSTRACT DUE DATE IS 31 MAY, not 10 May as was stated earlier.
This gives us all extra time to get in a contributed abstract.

        If any of you are working in areas that relate to the control of
biological systems by physical forces (mechanical, electromagnetic,
ultrasound, thermal...), including cell mechanics, bone remodeling, growth
and repair stimulation, etc., this is where you have an opportunity to
share your new findings and/or get useful feedback and hot ideas for
tomorrows grant proposals.

ABSTRACT FORMAT and SUBMISSION: (by 31 MAY)
        Use high quality, crisp type to allow photo-reproduction.
        Title, bold and centered;  below that, authors and affiliations,
centered.
        500 word, single spaced abstract (right and left justified if
possible) with 1 inch margins on 8.5 x 11.0 inch paper.
        One (1) page; a second page can be used to include figures and tables.
        The abstract should be substantive and give results of original
work done.
SEND TO:
   Soc. for Physical Regulation in Biology and Medicine
   9650 Rockville Pike
   Bethesda, Maryland  20814, U.S.A.

For updated program information as it becomes available please contact:
   tel: 301-571-0680
   Fax: 301-530-7049
   E-mail: sprbm@faseb.org

Remember also the 3 special instructive symposia with leading experts:
        1. Mechanical factors on VERTEBRATE EVOLUTION (dinosaurs, etc.).
        2. OSTEOARTHRITIS and physical forces.
        3. MECHANICAL SIGNAL transduction in cells.

Joe Spadaro


Joseph A. Spadaro, Ph.D.
Associate Professor - Orthopedic Research
S.U.N.Y. Health Science Center - Syracuse
spadaroj@vax.cs.hscsyr.edu



From owner-biophysics@net.bio.net Thu May 09 23:00:00 1996
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From: Patrick <patrick@howard.genetics.utah.edu>
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.glycosci,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: Thu, 9 May 1996 23:24:20 -0600
Organization: University of Utah Computer Center
Lines: 31
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References: <Pine.A32.3.93.960505082737.8841A-100000@itsa.ucsf.edu> <318E9B47.285B@indirect.com> <4mo83n$103v@itssrv1.ucsf.edu>
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Xref: biosci bionet.general:21587 bionet.biology.cardiovascular:962 bionet.cellbiol:4665 bionet.glycosci:682 bionet.biophysics:1963 bionet.molbio.ageing:2711 bionet.molbio.proteins:7849 bionet.neuroscience:14037 sci.med:123063 sci.research.careers:10198 talk.politics.medicine:51360

On 7 May 1996, Bert Gold wrote:

> >Just look at research on "Cold Fusion", "Global Warming", and "The Ozone 
> >Hole" for further examples of the poor quality of some recent so-called 
> >scientific research.  
> >
> The ozone hole is quite real.  You might look up articles by Sherwood 
> Rowland written in the last 10 years if you don't believe me, or if 
> you have qualms about the quality of the research.  The evidence 
> on global warming is mixed to the best of my knowledge.  
> I believe that the basis for the conclusions is careful work on ice cores.
> Why you put either of these in the same category as cold fusion 
> is beyond me; perhaps you can cite review articles in real journals
> that indicate the poor quality of the science?  


Yeah...any article published by "scientists" working for the petroleum 
industry or for any company involved in production of CFCs.  

As an (big) aside, I have a major problem with scientists who go to work
for such companies unless their role is simply to produce a new product or
process.  Beyond that, industry has no place in determining if what they
WANT to produce (or already produce) is harmful to people or the
environment.  It is fiscally bad policy for a company scientist to produce
any data that is contrary to the desires of the corporate heads and top
shareholders. 

OK, now that I got that off my chest, back to our normal programming.

patrick


From owner-biophysics@net.bio.net Thu May 09 23:00:00 1996
Path: biosci!LEX.LCCC.EDU!rcb1
From: rcb1@LEX.LCCC.EDU (Ron Blue)
Newsgroups: bionet.biophysics
Subject: Re: how do birds scream without deafening themselves?
Date: 10 May 1996 08:58:46 -0700
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 14
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On 10 May 1996, Adam Sundor wrote:
> Deborah,
> I wondered about that myself, especially after seeing the owls,
> like a GHO, whose ear-head is really a parabolic reflector.
> I know what happens to humans who use those parabolic reflectors
> without special ciruitry to dampen the amplified sounds when
> they get too loud.
> 
> Maybe the birds have a "mute" switch whenever they scream, they
> turn down the audio amplifiers in their little heads?
Well yes, you are correct.  The circuit is an opponent wavelet.  If you
need to know more ask me for Correlational Opponent-Processing: A 
Unifying Principle.   Ron Blue


From owner-biophysics@net.bio.net Thu May 09 23:00:00 1996
Path: biosci!DARTMOUTH.EDU!Tomasz.Panz
From: Tomasz.Panz@DARTMOUTH.EDU (Tomasz Panz)
Newsgroups: bionet.biophysics
Subject: Re: how do birds scream without deafening themselves?
Date: 10 May 1996 09:43:42 -0700
Organization: BIOSCI International Newsgroups for Molecular Biology
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Hello,
I  know that one of the favourite birds people are hunting in Poland took his 
Polish name (roughly: deaf bird;  sorry I do not know its English name) from
the well recognized deafness during singing. I do not know the mechanism of
this momentary deafness -  it  might be some anatomical attenuator or something
Ron Blue mentioned in his message.

Tom Panz


From owner-biophysics@net.bio.net Thu May 09 23:00:00 1996
Path: biosci!rutgers!uwm.edu!news.cse.psu.edu!news.cc.swarthmore.edu!netnews.upenn.edu!news
From: atteson@grip.cis.upenn.edu (Kevin Atteson)
Newsgroups: bionet.biophysics
Subject: thermodynamics of DNA/DNA hybridization
Date: 10 May 1996 18:17:50 GMT
Organization: University of Pennsylvania
Lines: 34
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Message-ID: <4n018e$t9k@netnews.upenn.edu>
NNTP-Posting-Host: grip.cis.upenn.edu


I'm interested in the thermodynamics of DNA/DNA hybridization.
In particular, I'm interested in the relationship between
melting temperature, Gibbs free energy and the proportion
of hybridized strands at different temperatures.

Please mail me any references (atteson@dnamite.humgen.upenn.edu)
on this topic.

I'll now say what I believe to be true and I would appreciate
anyone more versed in thermodynamics who can correct me.
The following equations hold (I'm using D for delta):

	DG = DH - T DS

	DG = -R T ln K

where K represents the relative proportion of hybridized
to unhybridized strands.  At the melting temperature, Tm,
we have that K = 1 (or close to it) and so:

	DH = Tm DS

Therefore, at an arbitrary temperature, T, the equilibrium
constant K can be written as:

	K = exp( - (Tm - T)DS/(R T) )

Is this correct?

Thanks,

Kevin Atteson
atteson@dnamite.humgen.upenn.edu

From owner-biophysics@net.bio.net Thu May 09 23:00:00 1996
Path: biosci!BIOSCI.MBP.MISSOURI.EDU!hmeekes
From: hmeekes@BIOSCI.MBP.MISSOURI.EDU (Herman Meekes)
Newsgroups: bionet.biophysics
Subject: Re: how do birds scream without deafening themselves?
Date: 10 May 1996 11:24:52 -0700
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 53
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On May 10, 1996 Deborah Wisti-Peterson wrote

>>hello all. i am busily thinking up questions that seem to have no
>>known answer (i am studying for my qualifying exams; thus thinking
>>of impossible questions is part of my job description at the moment!).
>>certainly, these questions seem to have no easily accessible answers.
>>so i thought that there might be an expert out there who may be able
>>to help me find sources that will provide an aswer to one of my questions.
>>
>>since i spend much time around birds, i am amazed at the LOUDNESS of
>>their song...a 15 gram chickadee song really travels FAR (at least one
>>city block)...and a screaming parrot is a real sound terrorist! so, i
>>want to know how birds can make such loud noises without making
>>themselves DEAF?
>>
>>--
>>     Deborah Wisti-Peterson       email:nyneve@u.washington.edu
>>Department of Zoology, University of Washington, Seattle, Wash, USA
>>    Visit me on the web: http://weber.u.washington.edu/~nyneve/
>>=-=-=-Graduate School: it's not just a job, it's an indenture!=-=-=
>>

Although there may have been real research into this, I am not aware of
that. On the other hand, it is known (sorry cannot give a reference) that
bats, when they produce their echo locating sounds, have a mechanism of
disconnecting their auditory nerve (to prevent deafening and confusion).
Birds might use a similar technique.
Contemplating further on this: why is it that when humans shout (try for
yourself), this does not make them deaf. Probably also in mammals there are
factors in the anatomy and physiology, as well as in the physics of sound
production that prevent deafening. One factor to consider is that normally
sound travels AWAY from the producer. It may actually be louder to a
bystander than to the person shouting (if you have kids or younger
siblings, you probably know what I'm talking about).

Not a definitive answer, just my two cents worth






Herman Meekes
Biological Sciences            ______________       ______________
University of Missouri           ---__       \     /       __---
109 Tucker Hall                       ------__\---/__------
Columbia, MO. 65211, USA                      \( )/
Tel: 573-882-0171                               V
Fax: 573-882-0123                              / \
e-mail: hmeekes@biosci.mbp.missouri.edu       /___\



From owner-biophysics@net.bio.net Thu May 09 23:00:00 1996
Path: biosci!daresbury!lyra.csx.cam.ac.uk!news.ox.ac.uk!springer
From: springer@immsvr.jr2.ox.ac.uk. (springer)
Newsgroups: bionet.biophysics
Subject: fluorescence polarisation/anisotropy instrument
Date: 10 May 1996 17:39:02 GMT
Organization: Oxford University
Lines: 15
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NNTP-Posting-Host: immmac42.jr2.ox.ac.uk
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hi - 

we would like to measure steady-state anisotropy of the tryptophan
fluorescence of a receptor to look at conformational changes during
ligand binding (in the 1-10 minutes range). Can anyone name a good
fluorimeter that would do these things, or point me towards someone who
has a custom-built instrument? The PerkinElmer LS-50B that we use for
routine fluorescence has a polariser accessory with 'fast filter
change' but the quality of the polarisers they make is not good enough
as we are looking at small differences.
Any help GREATLY appreciated.

Sebastian Springer
Institute of Molecular Medicine, Oxford, UK
sebastian.springer@clinical-medicine.oxford.ac.uk

From owner-biophysics@net.bio.net Thu May 09 23:00:00 1996
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From: shasta <shasta@rmii.com>
Newsgroups: bionet.biophysics
Subject: Just a thought and a question...
Date: 10 May 1996 21:58:27 GMT
Organization: Rocky Mountain Internet Inc.
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-- 
Hypothetically, could humans one day recieve all of our daily 
nutrients in a single pill?


From owner-biophysics@net.bio.net Thu May 09 23:00:00 1996
Path: biosci!rutgers!csn!nntp-xfer-1.csn.net!imci3!imci4!newsfeed.internetmci.com!in2.uu.net!news.i-link.net!usenet
From: Karl Kortemeyer <itc@i-link.net>
Newsgroups: bionet.biophysics
Subject: Call for Papers
Date: 10 May 1996 20:14:16 GMT
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==============================================================================
CALL FOR PAPERS

Second Annual Advanced Water Sciences Symposium
October  4,5,6, 1996
Dallas, Texas USA

This conference/symposium is hosted by the Institute for Advanced Water Sciences Research. IAWSR is a not for profit membership association dedicated to the promotion of advanced water science and the free exchange of ideas that contribute to the advancement of water science. The Institute provides a forum for members and contributing individuals to express their ideas in water related subjects in hard science, interdisciplinary studies and exploratory areas. Members also receive access to information and resources on water science.
______________________________________________________________________________

Papers dealing with, but not limited to, the following topics are solicited for presentation on October 5th and 6th in Dallas, Texas.

Hard Science:
       	hydrodynamics,
	water purification technology,
	electrolysis,
	bond angle relationships and energy states,
	environmental  issues,
	photo chemistry
	ionics, ORP, chemistry.
	oxidative states in water,
Interdisciplinary:
	vortex mechanics,
	magnetic resonance in water,
	radio frequency effects on water,
	energy systems utilizing water dynamics or structure,
	energization states in water,
	magnetic field effects on water dynamics and structure,
        homeopathic effects in relationship to energized water,
     	structured water,
        liquid crystal states,
        advanced techniques in ozonation,
	colloidal  chemistry
Exploratory:
	subtle energy effects in water,
        consciousness and water,
 	energization and transformation in the water molecule,
        effects of harmonic geometries on water,
       	biological effects of energized and structured water,            
        memory in water states,
   	scalar wave effects on water.    	

Please submit your final paper or 2 or 4 page extended abstract by June  30, 1996 to the contact person listed below. Questions and comments welcome.

Contact person: 	Karl Kortemeyer
               		P.O. Box 1295
                        Dallas, Texas 75355-1295
               		214/249-2001 FAX 214/340-7020
               		e-mail: itc@i-link.net  


From owner-biophysics@net.bio.net Fri May 10 23:00:00 1996
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From: Bill <Bill@farwood.demon.co.uk>
Newsgroups: bionet.biophysics
Subject: Re: thermodynamics of DNA/DNA hybridization
Date: Sat, 11 May 1996 16:16:20 +0100
Organization: home
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In article <4n018e$t9k@netnews.upenn.edu>, Kevin Atteson
<atteson@grip.cis.upenn.edu> writes
>
>I'm interested in the thermodynamics of DNA/DNA hybridization.
>In particular, I'm interested in the relationship between
>melting temperature, Gibbs free energy and the proportion
>of hybridized strands at different temperatures.
>
>Please mail me any references (atteson@dnamite.humgen.upenn.edu)
>on this topic.
>
>I'll now say what I believe to be true and I would appreciate
>anyone more versed in thermodynamics who can correct me.
>The following equations hold (I'm using D for delta):
>
>       DG = DH - T DS
>
>       DG = -R T ln K
>
>where K represents the relative proportion of hybridized
>to unhybridized strands.  At the melting temperature, Tm,
>we have that K = 1 (or close to it) and so:
>
>       DH = Tm DS
>
>Therefore, at an arbitrary temperature, T, the equilibrium
>constant K can be written as:
>
>       K = exp( - (Tm - T)DS/(R T) )
>
>Is this correct?
>

I'm not an expert but as Baker points out you can't assume DH constant.
Or that Cp is const.
For inorganic molecules this would be a reasonable starting assumption
but it turns out it is quite wrong for large biomolecules.

My statement is based on a 3rd level course S327 "Living processes" I am
following with the  Open Univ here in the UK. Book 2 "Bioenergetics"
section 2.5.2 Enthalpy changes in macromolecular processes.

...Theodor Benzinger showed bond enthalpy per base pair rising
exponentially with temp instead of remaining flat ... ! (during
unwinding)

You need to check the refs ---start -- Benzinger T.H. (1971) Nature 229
pp.100 -102 "Thermodynamics, chemical reactions ...."

Wish there was a thermodynamics newsgroup (can't see one)
-- 
Bill

From owner-biophysics@net.bio.net Fri May 10 23:00:00 1996
Path: biosci!ns1.faseb.org!lamarck.sura.net!newsfeed.internetmci.com!news.uoregon.edu!vixen.cso.uiuc.edu!newsfeed.ksu.ksu.edu!news.physics.uiowa.edu!news.uiowa.edu!usenet
From: brian-baker@uiowa.edu (Brian M. Baker)
Newsgroups: bionet.biophysics
Subject: Re: thermodynamics of DNA/DNA hybridization
Date: 10 May 1996 21:14:09 GMT
Organization: University of Iowa, Department of Biochemistry
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In message <4n018e$t9k@netnews.upenn.edu> - atteson@grip.cis.upenn.edu
(Kevin Atteson)10 May 1996 18:17:50 GMT writes:
:>
:>
:>I'm interested in the thermodynamics of DNA/DNA hybridization.
:>In particular, I'm interested in the relationship between
:>melting temperature, Gibbs free energy and the proportion
:>of hybridized strands at different temperatures.
:>
:>Please mail me any references (atteson@dnamite.humgen.upenn.edu)
:>on this topic.
:>
:>I'll now say what I believe to be true and I would appreciate
:>anyone more versed in thermodynamics who can correct me.
:>The following equations hold (I'm using D for delta):
:>
:>	DG = DH - T DS
:>
:>	DG = -R T ln K
:>
:>where K represents the relative proportion of hybridized
:>to unhybridized strands.  At the melting temperature, Tm,
:>we have that K = 1 (or close to it) and so:
:>
:>	DH = Tm DS
:>
:>Therefore, at an arbitrary temperature, T, the equilibrium
:>constant K can be written as:
:>
:>	K = exp( - (Tm - T)DS/(R T) )
:>
:>Is this correct?
:>
:>Thanks,
:>
:>Kevin Atteson
:>atteson@dnamite.humgen.upenn.edu

Pretty close.  Realize that DS in your last term refers to DS at the
melting temperature; you'll need to include heat capacity effects at
another temperature.  

For protein unfolding, this is usually written from an enthalpic
perspective (it's easier to measure DH "directly")


K = exp(-(DH-T(DHm/Tm)+DCp((T-Tm)-Tln(T/Tm)))/RT) , 

assuming a temperature independent DCp.

Also note that since DNA melting is a bimolecular reaction, there will be a
concentration dependence to DS and thus DG; any measured DS will have to be
corrected if you want it to refer to the usual standard state of 1 molar:

DS(standard state)=DS(measured)+RT ln Q

where Q = [DNA]^2 / [DNA]

Although I've never looked for any, I imagine there's lots of literature on
this sort of treatment of DNA hybridization/melting.

Brian

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Brian M. Baker                                        brian-baker@uiowa.edu
Graduate Student Peon               
Protein Structural Energetics       "I am becalmed and virtured, lost
Department of Biochemistry               to nothing on a bay of dreams..."
University of Iowa                                    -Blue Oyster Cult
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=


From owner-biophysics@net.bio.net Fri May 10 23:00:00 1996
Newsgroups: bionet.biophysics,bionet.diagnostics,sci.med.radiology.inyerventional,sci.engr.biomed,soc.culture.german,sci.image.processing,comp.lang.pascal.delphi.misc,alt.lang.delphi,sci.physics.electromag,sci.techniques.mag-resonance,sci.med.physics,sci.med.radiology
Path: biosci!daresbury!yama.mcc.ac.uk!thor.cf.ac.uk!news
From: schneider@cf.ac.uk
Subject: new Electrical impedance tomography resource page - student projects - Studien-&Diplomarbeiten
Sender: news@cf.ac.uk (USENET News System)
Message-ID: <Dr959n.BsE@cf.ac.uk>
Date: Sat, 11 May 1996 17:44:10 GMT
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A new biomedical orientated webpage focussing Electrical Impedance Tomography (EIT) 
can be found at 
http://www.cf.ac.uk/uwcc/engin/Systems/medical/ingo/ingo.html

This page contains a resource list and descriptions of currently 
available student project work related to EIT. 

Speziell deutsche Universita"tstudenten ko"nnen im Rahmen des ERASMUS
Programms ihre Studien-oder Diplomarbeit in der Medical Systems Unit
anfertigen. Na"hre Infos in deutscher Sprache sind ebenfall auf der 
oben angegebenen webpage zu finden.

I would appreciate any feedback.

Thanks

ingo

From owner-biophysics@net.bio.net Sat May 11 23:00:00 1996
Path: biosci!PEGASUS.CC.UCF.EDU!rwallace
From: rwallace@PEGASUS.CC.UCF.EDU (Ronald L Wallace)
Newsgroups: bionet.biophysics
Subject: Re: how do birds scream without deafening themselves?
Date: 12 May 1996 09:56:57 -0700
Organization: BIOSCI International Newsgroups for Molecular Biology
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Hello Deborah.  I am a biological anthropologist, not an ornithologist,
but I may have the beginnings of an answer.  In the case of bats (a
mammal, of course, not a bird at all) the neurology of their hearing
system momentarily "shuts down" during the high-frequency emission, so as
not to cause damage to their hearing.  The source which discusses this in
extensive detail (and provides references) is The Blind Watchmaker by
biologist Richard Dawkins.  Maybe birds have a version of this adaptation?
Good luck.

Ron Wallace, Ph.D.
Department of Anthropology
and Sociology
University of Central Florida
Orlando, FL  32816

On 10 May 1996, 'Gavia immer' Deborah Wisti-Peterson wrote:

> hello all. i am busily thinking up questions that seem to have no
> known answer (i am studying for my qualifying exams; thus thinking
> of impossible questions is part of my job description at the moment!). 
> certainly, these questions seem to have no easily accessible answers. 
> so i thought that there might be an expert out there who may be able 
> to help me find sources that will provide an aswer to one of my questions.
> 
> since i spend much time around birds, i am amazed at the LOUDNESS of 
> their song...a 15 gram chickadee song really travels FAR (at least one
> city block)...and a screaming parrot is a real sound terrorist! so, i 
> want to know how birds can make such loud noises without making 
> themselves DEAF?
> 
> -- 
>      Deborah Wisti-Peterson       email:nyneve@u.washington.edu
> Department of Zoology, University of Washington, Seattle, Wash, USA
>     Visit me on the web: http://weber.u.washington.edu/~nyneve/
> =-=-=-Graduate School: it's not just a job, it's an indenture!=-=-=
> 
> 


From owner-biophysics@net.bio.net Sat May 11 23:00:00 1996
Path: biosci!igi.tu-graz.ac.at!maass
From: maass@igi.tu-graz.ac.at (Wolfgang Maass)
Newsgroups: bionet.biophysics
Subject: 2 papers on spiking versus sigmoidal neurons
Date: 12 May 1996 12:19:48 -0700
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 94
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1)
The file maass.third-generation.ps.Z is now available for copying
from the Neuroprose repository. This is a 23-page long paper.
Hardcopies are not available.

FTP-host: archive.cis.ohio-state.edu
FTP-filename: /pub/neuroprose/maass.third-generation.ps.Z


                 Networks of Spiking Neurons: 
         The Third Generation of Neural Network Models
        
                            Wolfgang Maass

              Institute for Theoretical Computer Science
                     Technische Universitaet Graz
                         Klosterwiesgasse 32/2
                         A-8010 Graz, Austria
                    e-mail: maass@igi.tu-graz.ac.at


                            Abstract

The computational power of formal models for networks of spiking 
neurons is compared with that of traditional neural network models
based on McCulloch Pitts neurons (i.e. threshold gates)
respectively sigmoidal gates. It is shown
that networks of spiking neurons are computationally more
powerful than threshold circuits and sigmoidal neural nets of the 
same size. 
A concrete biologically relevant function is exhibited which can be
computed by a single spiking neuron (for biologically
reasonable values of its parameters), but which requires
hundreds of hidden units on a sigmoidal neural net.

This article does not assume prior knowledge about spiking neurons,
and it  contains an extensive list of references
to the currently available literature on computations
in networks of spiking neurons and relevant results 
from neurobiology. 


***************************************************************
2)
The file maass.sigmoidal-spiking.ps.Z  is now also available for copying
from the Neuroprose repository. This is a 27-page long paper.
Hardcopies are not available.

FTP-host: archive.cis.ohio-state.edu
FTP-filename: /pub/neuroprose/maass.sigmoidal-spiking.ps.Z

   An Efficient Implementation of Sigmoidal Neural Nets in Temporal
               Coding with Noisy Spiking Neurons
   
                            Wolfgang Maass

              Institute for Theoretical Computer Science
                     Technische Universitaet Graz
                         Klosterwiesgasse 32/2
                         A-8010 Graz, Austria
                    e-mail: maass@igi.tu-graz.ac.at


                               Abstract

We show that networks of spiking neurons can simulate arbitrary 
feedforward sigmoidal neural nets in a way which has previously
not been considered.
This new approach is based on temporal coding by single spikes 
(respectively by the timing of synchronous firing in pools of neurons), 
rather than on the traditional interpretation of analog variables in
terms of firing rates. It is based on the observation that incoming
"postsynaptic potentials" can SHIFT the firing time of a spiking
neuron. The resulting new simulation is substantially faster and 
hence more consistent with experimental results about the 
speed of information processing in cortical neural systems.

As a consequence we can show that networks of noisy spiking neurons are
                     "universal approximators" 
in the sense that they can approximate with regard to
temporal coding any given continuous function of several variables.
This result holds for a fairly large class of schemes for coding analog
variables by firing times of spiking neurons. 

Our new proposal for the possible organization of computations
in networks of spiking neurons systems has some interesting 
consequences for the type of learning rules that would be needed to
explain the self-organization of such networks.

Finally, our fast and noise-robust implementation of sigmoidal neural
nets via temporal coding points to possible new ways of implementing
feedforward and recurrent sigmoidal neural nets with pulse stream VLSI.

(To appear in Neural Computation.)

From owner-biophysics@net.bio.net Sun May 12 23:00:00 1996
Path: biosci!daresbury!yama.mcc.ac.uk!news.york.ac.uk!news
From: Chris Elliott <cje2@york.ac.uk>
Newsgroups: bionet.biophysics
Subject: Re: Electrode visualisation
Date: Mon, 13 May 1996 13:09:09 -0700
Organization: The University of York, UK
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CC: xywang@cyllene.uwa.edu.au

Xueyong Wang wrote:
> 
> Dear All,
> 
>    We tried to impale retrogradely (Fast Blue) labelled neurons in
>  brain slices and do some intracellular recordings if possible. We filled the
> electrodes with Lucifer Yellow dissolved in 1M LiCl (it seems not to
> be dissolved in any solution containing K ion !), however, this just
> killed the cell quickly no matter whether the cell was fast
> blue labelled or not.
> 
> Any help and suggestions are greatly appreciated
> 
> X. Wang
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Department of Physiology
> The University of Western Australia
> Nedlands, Perth 6907, AUSTRALIA
> Tel: 61-9-3803559; Fax: 61-9-3801025
> Emai: xywang@cyllene.uwa.edu.au
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

What kind of illuminator are you using; If you reduce the blue light it 
will work fine. I always dissolve the Lucifer yellow in distilled water, 
but if you want something that conducts better use 5(6) 
carboxyfluorescein at pH 7 (normally very acid). Buy it from Eastman 
Kodak (much cheaper than sigma)

chris

From owner-biophysics@net.bio.net Sun May 12 23:00:00 1996
Newsgroups: bionet.biophysics,bionet.diagnostics,sci.med.radiology.interventional,sci.engr.biomed,soc.culture.german,sci.image.processing,comp.lang.pascal.delphi.misc,alt.lang.delphi,sci.physics.electromag,sci.techniques.mag-resonance,sci.med.physics,sci.med.radiology
Path: biosci!daresbury!yama.mcc.ac.uk!thor.cf.ac.uk!news
From: Ingo Schneider <schneider@cf.ac.uk>
Subject: Studien- und Diplomarbeiten / biomedical engin. student project work 
Sender: news@cf.ac.uk (USENET News System)
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schneider@cf.ac.uk wrote:
> 
> A new biomedical orientated webpage focussing Electrical Impedance Tomography (EIT)
> can be found at
> http://www.cf.ac.uk/uwcc/engin/Systems/medical/ingo/ingo.html
> 
> This page contains a resource list and descriptions of currently
> available student project work related to EIT.
> 
> Speziell deutsche Universita"tstudenten ko"nnen im Rahmen des ERASMUS
> Programms ihre Studien-oder Diplomarbeit in der Medical Systems Unit
> anfertigen. Na"hre Infos in deutscher Sprache sind ebenfall auf der
> oben angegebenen webpage zu finden.
> 
> I would appreciate any feedback.
> 
> Thanks
> 
> ingoschneider@cf.ac.uk wrote:
> 
> A new biomedical orientated webpage focussing Electrical Impedance Tomography (EIT)
> can be found at
> http://www.cf.ac.uk/uwcc/engin/Systems/medical/ingo/ingo.html
> 
> This page contains a resource list and descriptions of currently
> available student project work related to EIT.
> 
> Speziell deutsche Universita"tstudenten ko"nnen im Rahmen des ERASMUS
> Programms ihre Studien-oder Diplomarbeit in der Medical Systems Unit
> anfertigen. Na"hre Infos in deutscher Sprache sind ebenfall auf der
> oben angegebenen webpage zu finden.
> 
> I would appreciate any feedback.
> 
> Thanks
> 
> ingo

From owner-biophysics@net.bio.net Sun May 12 23:00:00 1996
Path: biosci!bcm.tmc.edu!news.msfc.nasa.gov!newsfeed.internetmci.com!tank.news.pipex.net!pipex!dispatch.news.demon.net!demon!STD
From: STD@revealer.demon.co.uk (Simon Dobbs)
Newsgroups: bionet.biophysics
Subject: Re: DNA, Ethidium, and Nicking
Date: Mon, 13 May 1996 22:44:55 +0000
Organization: Dobbs Research
Lines: 49
Message-ID: <199605132244551375654@revealer.demon.co.uk>
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Chris Barry <chbarry@mackiller.llnl.gov> wrote:

> Hi,
>       Why dont you try this:
> 1) Dut you DNA in a tube w/EtBr and expose it to UV light
> 2) Run an alkaline gel. This should melt away the 2 strands of DNA so
> that it runs through as a single strand. If you get a discrete band,
> that would indicate that there isn't too much nicking going on. A smear
> would indicate more degradation. You could do this for several samples
> with different exposure times and intensities to determine the rate of
> nicking. 
>       You might need to find a dye specific for single stranded DNA. I cant
> thik of any now but I am sure they exist.
> 
> Chris 
> 
> Daniel Fishman wrote:
> > 
> > Hi,
> > 
> > DNA is often visually detected by observation of the fluorescence of
> > bound ethidium.  When near-UV light is shined on a solution of DNA
> > with bound ethidium some of the DNA becomes nicked.  I'm interested in
> > finding out the rate of this process, in order to be able to judge how
> > much nicking will occur for a given concentration of ethidium and a
> > given intensity of light.  If anyone should know of a good reference
> > for this information, or can think of a name that might speed up my
> > literature search, I'd appreciate the help.  Thanks.
> > 
> > -Daniel Fishman   dfishman@sarnoff.com

or alternatively try the nicking expt with supercoiled plasmid- a
***single*** nick will relax this such that it runs very differently on
a native agarose gel- both unnicked and nicked species run as single
bands rather than  smears- hence quantifiable. Probably much more
sensitive. No need for special dye. Strangley enough, from my own
experience (and that of colleagues) supercoiled DNA (in the absence of
ethidium) undergoes more rapid nicking in buffer at -20C than 4C- both
in the dark. I don't know of any published work on this, but anyone
working with supercoiled DNA is acutely sensitive to such nicking, hence
relaxing, of  DNA. Try Dr Andrew Bates of Liverpool University, England
or Dr Tony Maxwell of Leicester University, England

Simon Dobbs PhD
STD@revealer.demon.co.uk
Compuserve100115,1440

-- 
Panta rhei- Heraclitus

From owner-biophysics@net.bio.net Sun May 12 23:00:00 1996
Path: biosci!bcm.tmc.edu!news.msfc.nasa.gov!newsfeed.internetmci.com!in2.uu.net!news.emi.com!pauling.wadsworth.org!tivol
From: tivol@news.wadsworth.org (William Tivol)
Newsgroups: bionet.biophysics
Subject: Re: Just a thought and a question...
Date: 13 May 1996 17:46:10 GMT
Organization: Wadsworth Center, NY Health Dept.
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shasta (shasta@rmii.com) wrote:

: Hypothetically, could humans one day recieve all of our daily 
: nutrients in a single pill?

Dear Shasta,
	At 2200 cal/day and with 1 lb butter = 3500 cal, the pill would
have to be more than 500 ml in volume, and if humans would still require
fiber, the pill would have to be much larger.  In any event, I would much
rather have a few good meals per day than try to ram down a pill.
				Yours,
				Bill Tivol

From owner-biophysics@net.bio.net Sun May 12 23:00:00 1996
Path: biosci!PHYSICAL36.CHEM.UFL.EDU!alex
From: alex@PHYSICAL36.CHEM.UFL.EDU (alex)
Newsgroups: bionet.biophysics
Subject: Everglades tragedy and SONAR imaging
Date: 13 May 1996 12:38:36 -0700
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 39
Sender: daemon@net.bio.net
Distribution: world
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NNTP-Posting-Host: net.bio.net

Is there somebody on this list who has experience in SONAR imaging? Please
review the contents of the following message, and get in touch with Tom 
Mareci. 

Thanks, Alex Angerhofer.

Forwarded message:
> From thmareci@csbnmr.health.ufl.edu Mon May 13 14:14:18 1996
> Date: Mon, 13 May 96 15:02:42 EDT
> Message-Id: <9605131902.AA17114@csbnmr.health.ufl.edu>
> X-Sender: thmareci@csbnmr.health.ufl.edu
> X-Mailer: Windows Eudora Version 1.4.4
> Mime-Version: 1.0
> Content-Type: text/plain; charset="us-ascii"
> To: rabba@mse.ufl.edu, "E. Raymond Andrew" <andrew@phys.ufl.edu>,
>         alex@chem.ufl.edu, Jim Dufty <dufty@phys.ufl.edu>, eyler@chem.ufl.edu,
>         "Dr. Jeff Fitzsimmons" <jfitz@ufnmr1.health.ufl.edu>,
>         ww_harrison@sfa.ufl.edu, kholbro@nervm.nerdc.ufl.edu,
>         rlj@gnv.ifas.ufl.edu, "William Luttge"  <luttge@cortex.health.ufl.edu>,
>         David Reitze <reitze@phys.ufl.edu>, schuster@icbr.ifas.ufl.edu,
>         scottk@xray1.xray.ufl.edu, Neil Sullivan <neil@phys.ufl.edu>,
>         tulenko@ufl.edu
> From: thmareci@csbnmr.health.ufl.edu (Tom Mareci)
> Subject: Everglades tragedy and imging
> Cc: imagesci@neptune.phys.ufl.edu,
>         "Karen Holbrook" <kholbro@nervm.nerdc.ufl.edu>
> 
> Everyone,
> 
>         I was contacted by Julie Strandlie, a UF representative in
> Washington, who inquired whether we had any ideas on imaging for the
> detection of bodies and airplane parts in the swampy waters of the
> Everglades.  She is trying to help Senator Mack's office with any possible
> ideas to help in the recovery process.  Please let me know as soon as
> possible today, if you can suggest anything.
> 
> Tom Mareci
> 


From owner-biophysics@net.bio.net Sun May 12 23:00:00 1996
Path: biosci!CS.Arizona.EDU!noao!ennfs.eas.asu.edu!gatech!udel!news.mathworks.com!newsfeed.internetmci.com!in2.uu.net!newsfeed.ACO.net!mail.boku.ac.at!news
From: Iain Wilson <wilson@edv1.boku.ac.at>
Newsgroups: bionet.general,bionet.biology.cardiovascular,bionet.cellbiol,bionet.biophysics,bionet.molbio.ageing,bionet.molbio.proteins,bionet.neuroscience,sci.med,sci.research.careers,talk.politics,talk.politics.medicine
Subject: Re: PAULING, SZENT-GYORGYI, VITAMIN C AND ME
Date: Mon, 13 May 1996 10:57:28 -0700
Organization: Universität für Bodenkultur Wien
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References: <Pine.A32.3.93.960505082737.8841A-100000@itsa.ucsf.edu> <318E9B47.285B@indirect.com> <4motdh$3mfi@b.stat.purdue.edu>
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CC: dnoche@shell.wco.com, pats@sco.com,
	patrick@howard.genetics.utah.edu, rkondo@ephys.ucla.edu,
	ghconkli@bessel.nando.net, mp@eng.tridom.com, S.Deneke@dl.ac.uk,
	srussell@ou.edu, johnk@indirect.com
Xref: biosci bionet.general:21637 bionet.biology.cardiovascular:971 bionet.cellbiol:4683 bionet.biophysics:1983 bionet.molbio.ageing:2716 bionet.molbio.proteins:7875 bionet.neuroscience:14072 sci.med:123473 sci.research.careers:10237 talk.politics.medicine:51508

To all those whom it may concern:

PLEASE DO NOT CROSSPOST THIS 'PAULING, SZENT-GYORGYI, VITAMIN C AND ME' 
THREAD TO BIONET.GLYCOSCI. 

Please check the reply headers before promiscuously sending irrelevant 
posts to specialist newsgroups. Bionet.glycosci is meant as a place for 
professional discussions of glycoconjugate structure, function and 
analysis - and Vitamin C / ascorbate is not a glycoconjugate!!

I am sure that some other bionet newsgroups listed are also not the place 
for the present discussion.

I have already requested the first three posters individually to not 
cross-post and it appears that they have abided by this request, but 
another 15 or so posts on the subject were clogging up the newsgroup this 
morning. Therefore I am making this request to all the other newsgroups 
listed in the header for these posts (as well as the latest contributors 
to the thread) so as to make a pre-emptive request. 

I thank you in advance for your co-operation,

Dr. Iain Wilson
co-discussion leader glycosci newsgroup

-- 
Iain Wilson                        Institut fuer Chemie           
Tel: 43-1-47654-6065               Universitaet fuer Bodenkultur   
Fax: 43-1-310-5176                 Gregor-Mendel-Strasse 33
E-mail: wilson@edv1.boku.ac.at     A-1180, WIEN, Austria

From owner-biophysics@net.bio.net Sun May 12 23:00:00 1996
Path: biosci!rutgers!uwm.edu!newsfeed.internetmci.com!bloom-beacon.mit.edu!senator-bedfellow.mit.edu!athena.mit.edu!tvaughan
From: tvaughan@athena.mit.edu (Timothy E Vaughan)
Newsgroups: bionet.biophysics
Subject: Re: Just a thought and a question...
Date: 13 May 1996 14:04:32 GMT
Organization: Massachusetts Institute of Technology
Lines: 12
Distribution: world
Message-ID: <4n7fhg$6kp@senator-bedfellow.MIT.EDU>
References: <4n0e63$433@natasha.rmii.com>
NNTP-Posting-Host: milanese.mit.edu

In article <4n0e63$433@natasha.rmii.com>, shasta <shasta@rmii.com> writes:

|> Hypothetically, could humans one day recieve all of our daily 
|> nutrients in a single pill?

 Yes, depending on your definition of "pill".  Imagine taking all of the
food you ate yesterday, and molding it into your daily pill.  It might take
you a while to consume it.  (Also, take it with LARGE glass of water.)

I think I've been spending too much time in rec.puzzles.

Tim

From owner-biophysics@net.bio.net Mon May 13 23:00:00 1996
Path: biosci!rutgers!uwm.edu!lll-winken.llnl.gov!nntp.coast.net!howland.reston.ans.net!nctuccca.edu.tw!news.cc.nctu.edu.tw!news.cis.nctu.edu.tw!usenet
From: Kevin Hu <e120874832@mail.chinatrust.com.tw>
Newsgroups: bionet.biophysics
Subject: Do sombody know waht is a magnetic water?
Date: 14 May 1996 12:27:39 GMT
Organization: Dept. of Computer & Information Science, NCTU, Taiwan
Lines: 3
Message-ID: <4n9u7r$92u@news.cis.nctu.edu.tw>
NNTP-Posting-Host: @203.66.182.70

Recently there are a lot of commercially product available "magnetic"water in Taiwan and Japan,
I don't know waht it is, If somebody know the detail of what water will be if a magnetic field was apply to it,
Please mail to my e-mail box or discuss with everybody one the world.

From owner-biophysics@net.bio.net Mon May 13 23:00:00 1996
Path: biosci!BIOFIZ.MF.UNI-LJ.SI!peterlin
From: peterlin@BIOFIZ.MF.UNI-LJ.SI (Primoz Peterlin)
Newsgroups: bionet.biophysics
Subject: Re: Speaking the Unspoken
Date: 14 May 1996 00:30:30 -0700
Organization: BIOSCI International Newsgroups for Molecular Biology
Lines: 19
Sender: daemon@net.bio.net
Distribution: world
Message-ID: <Pine.3.89.9605140951.A14874-0100000@sizif.mf.uni-lj.si>
References: <Pine.SUN.3.93.960513221803.19784D-100000@access5.digex.net>
NNTP-Posting-Host: net.bio.net

>         Please pardon me if I, in the interest of world peace,
> trouble you one more time. I am writing in the hope, however
> small, that I might open a dialogue. It is abundantly clear to
> me that we are telepathic. ...
> ...
> Richard L. Nacamuli                             "E per si muove"
> headwave@access.digex.net                                Galileo

I am not telepathic and thus unable to guess what Galileo Galilei _meant
to say_, but what he allegedly _did say_ was "Eppur si muove". 

My small contribution to the world peace...

-- Primoz

--
Primoz Peterlin (peterlin@biofiz.mf.uni-lj.si) Fax:+386-61-131-5127
Institut za biofiziko MF, Lipiceva 2, SLO-1105 Ljubljana, Slovenija
          WWW page: http://sizif.mf.uni-lj.si/~peterlin/

From owner-biophysics@net.bio.net Mon May 13 23:00:00 1996
Path: biosci!bcm.tmc.edu!pendragon!news.msfc.nasa.gov!newsfeed.internetmci.com!in2.uu.net!news2.digex.net!access5.digex.net!headwave
From: Richard Nacamuli <headwave@access.digex.net>
Newsgroups: bionet.biophysics
Subject: Speaking the Unspoken
Date: Mon, 13 May 1996 22:18:37 -0400
Organization: Express Access Online Communications, USA
Lines: 56
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        Please pardon me if I, in the interest of world peace,
trouble you one more time. I am writing in the hope, however
small, that I might open a dialogue. It is abundantly clear to
me that we are telepathic. It is equally clear that we are
going to fight another world war. If we do, it will not be
because nobody said what needed to be said.
        Being telepathic, there must obviously be electromagnetic
emissions of some sort from our brains. In an advanced a society
as ours it would be a simple matter to detect them, be they radio
frequency, microwave, millimeter, submillimeter, or whatever.
Simple to detect, and impossible to avoid for, unless it is our
intent to destroy half of our world in a nuclear war, it is
impossible for us to progress very much beyond this point without
doing so. In fact, we are likely to see continued regression as
long as we continue to avoid doing so.
        For stubborn people; some of the highlights of
        World War III:
        Mother Russia will elect herself a communist government
with influence well into Europe. China will become quite the
industrialized nation and will also become quite agressive.
A sharp rise in fuel prices will cause a major economic collapse
as we will not have developed a substitute for petroleum. The world
will suddenly have 2 billion too-many people in it (including the
billion too-many it already has). Russia will ally with China.
Russia will invade Europe. China will invade Taiwan, S. Korea, 
Japan, and will either invade or attack Malaysia. Moslem Pakistan,
with China's help, will be engaged in a nuclear conflict with
Hindu India and will find both of their populations considerably
reduced.
        It also appears that the Hebrew race could quite possibly
be annihilated. After being murdered in Europe, the Jews have
concentrated in Israel. One thing that can be said for having a
people in one place is that it makes it easy to kill them all.
It is similar in the United States where Jews, blacks, hispanics,
and gays are concentrated in cities eagerly awaiting Russian and
Chinese warheads. It is unlikely that the United States could
do much to help the Israelis as the entire Arab world falls
upon her. The U.S. will be fending off Russian submarine-
launched missiles in the east and Chinese ICBM's in the west.
It is not likely that she'll stop them all.
        In what I feel is, frankly, quite likely an excersise
in futility, I am attempting through some rather open talk to
open a dialogue, a window if you will, and let some fresh air
into an otherwise stagnant atmosphere. At the same time, I
want to put a few things on the level on which they belong.
        The Russians used to be into telepathy. What happened?
Give up? I suggest that we turn our antennas from the