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Satyr
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PostSubject: Science News   Fri Sep 23, 2011 7:30 pm

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PostSubject: Re: Science News   Fri Sep 23, 2011 8:00 pm

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PostSubject: Re: Science News   Fri Sep 23, 2011 10:11 pm

Quote :
"So let me put my money where my mouth is: if the Cern experiment proves to be correct and neutrinos have broken the speed of light, I will eat my boxer shorts on live TV."

- Jim Al-Khalili, a physicist from the University of Surrey

http://www.bbc.co.uk/news/science-environment-15034414

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PostSubject: Re: Science News   Sun Oct 09, 2011 11:30 am

From what Ive gathered, neutrinos arent technically actual particles. They are a bunch of properties, missing from the bundle of assumptions constituting the representation of certain particles.

What this might mean, in the terms Ive been working with recently, is that the are not entities in the sense that entities hold a certain self value, an ´awareness´ of what they are, by virtue of which they may relate to the universe, to being, to timespace as timespace.

Perhaps neutrinos arent enclosed in timespace, as they do not follow follow the protocol for being, which requires of a particle that it refers to itself in order to effectively refer itself to other energy. A neutrino would be existentially passive, requiring a specific context to be brought into existence, with all its quirks such as relativity.

Self vauing and other valuing should not be interpreted as a conscious act, but as the principle by which a wave or particle determines what it relates to, by which it is established as actual being. It is not an act in the sense of performing a movement, but more in the sense of gathering oneself, that action which in humans is just as elusive as it is necessary to perform any kind of action as an integer entity.
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PostSubject: Re: Science News   Fri Jul 06, 2012 6:36 pm

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PostSubject: Re: Science News   Thu Aug 30, 2012 10:34 am

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PostSubject: Re: Science News   Sat Jul 06, 2013 8:00 am

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PostSubject: Re: Science News   Wed Nov 06, 2013 1:19 pm

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PostSubject: Re: Science News   Wed Nov 06, 2013 1:20 pm

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PostSubject: Re: Science News   Wed Nov 06, 2013 1:21 pm

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PostSubject: Re: Science News   Wed Nov 06, 2013 1:22 pm

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PostSubject: Re: Science News   Sun Nov 24, 2013 7:18 pm

Y chromosome: Why men contribute so little
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By James GallagherHealth and science reporter, BBC News
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Scientists have practically obliterated the ultimate symbol of maleness in DNA, the Y chromosome, and believe they may be able to do away with it completely.
They condensed all the genetic information normally found on a mouse's Y chromosome to just two genes.
Their study, in the journal Science, showed the male mice could still father babies, albeit needing advanced IVF.
The team in Hawaii argues that the findings could one day help infertile men with a damaged Y chromosome.
DNA is bundled into chromosomes.
In most mammals, including humans, one pair act as the sex chromosomes.
Inherit an X and Y from your parents and you turn out male, get a pair of Xs and the result is female.
Two genes 'enough'
[You must be registered and logged in to see this image.]A human X and Y chromosome
"The Y chromosome is a symbol of maleness," lead researcher Professor Monika Ward told the BBC.
In mice, the Y chromosome normally contains 14 distinct genes, with some present in up to a hundred copies.
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Quote :
This is a great step forward in understanding basic biology”

Dr Chris Tyler-SmithWellcome Trust Sanger Institute
The team at the University of Hawaii showed that genetically modified mice with a Y chromosome consisting of just two genes would develop normally and could even have babies of their own.
Prof Ward commented: "These mice are normally infertile, but we show it is possible to get live offspring when the Y chromosome is limited to just two genes by using assisted reproduction."
The mice could only produce rudimentary sperm. But they could have offspring with the help of an advanced form of IVF, called round spermatid injection, which involves injecting genetic information from the early sperm into an egg.
The resulting pups were healthy and lived a normal lifespan.
Reproduction still possible
The two necessary genes were [i]Sry[/i], which kick-starts the process of producing a male as an embryo develops, and [i]Eif2s3y[/i], which is involved in the first steps of sperm production.
However, Prof Ward argues it "may be possible to eliminate the Y chromosome" if the role of these genes could be reproduced in a different way, but added a world without men would be "crazy" and "science fiction".
"But on a practical level it shows that after large deletions of the Y chromosome it is still possible to reproduce, which potentially gives hope to men with these large deletions," she added.
[You must be registered and logged in to see this image.]The father has hardly any Y chromosome
The genes which were discarded are likely to be involved in the production of healthy sperm.
Dr Chris Tyler-Smith, from the Wellcome Trust Sanger Institute, said: "This is a great step forward in understanding basic biology.
"But it is important to bear in mind that other mouse Y genes are needed for natural reproduction in mice and as the authors carefully emphasise, the conclusions cannot be applied directly to humans because humans don't have a direct equivalent of one of the key genes."
Dr Allan Pacey, a senior lecturer in andrology at the University of Sheffield, said: "This is a very interesting paper, trying to both unravel the genes responsible for sperm production and also shed light on the function of the Y-chromosome.
"The experiments are elegant and seem to show that in the mouse sperm production can be achieved when only two genes from the Y-chromosomes are present.
"Whilst this is of limited use in understanding human fertility, this kind of work is important if we are to unravel to complexities of how genes control fertility."

_________________
"ἐδιζησάμην ἐμεωυτόν." [Heraclitus]

"The history of everyday is constituted by our habits. ... How have you lived today?" [N.]

"You're a spiritual gangster.  I don't trust you.  Your claws are always out." [Reasonvemotion]
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