TRAKTOR TOM 2 HRVATSKI http://ff.im/bFpch

EvoMRI: TRAKTOR TOM 2 HRVATSKI http://ff.im/bFpch

See original: Twitter TRAKTOR TOM 2 HRVATSKI http://ff.im/bFpch

ID Error Leaves Fish at Edge of Extinction

In an extinction scenario that might have been concocted by Douglas Adams or a taxonomically minded Kafka, a classification error has allowed fishermen to drive a species of skate to near oblivion.
If it vanishes, the flapper skate will be the first fish officially exterminated by commercial pressures — and for the last 83 years, it [...]

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See original: Science News ID Error Leaves Fish at Edge of Extinction

The Benefits of Increased PGC-1alpha Expression

A short introduction to the gene PGC-1alpha: this is one of a number of genes of interest involved in the biochemical changes, resistance to age-related disease, and extended healthy life span brought about by calorie restriction (CR). It favorably changes the operation of mitochondria, and based on the effects of other genes and proteins involved in these mechanisms, I would expect enhanced expression of PCG-1alpha to have at least some modest beneficial effect on life span. That said, I'm not aware of any life span studies involving PCG-1alpha manipulation, but there is a fair amount of published research out there on its more immediate effects. For a longer introduction, including some explanation as to why mitochondria are so important to aging and longevity, you might look back in the archives. Every gene and protein in the regulatory networks surrounding mitochondrial operation potentially determines some portion of the rate at which an individual ages: Our understanding of the complexity of signalling pathways to and from the mitochondria is increasing, describing a network through which mitochondria may communicate functional status to the nucleus to impact cellular function. Metabolic reprogramming by CR may be central to the mechanism of lifespan extension, where changes......

Wenz T, Rossi SG, Rotundo RL, Spiegelman BM, & Moraes CT. (2009) Increased muscle PGC-1{alpha} expression protects from sarcopenia and metabolic disease during aging. Proceedings of the National Academy of Sciences of the United States of America. PMID: 19918075   Increased muscle PGC-1{alpha} expression protects from sarcopenia and metabolic disease during aging.


See original: Research Blogging - All Topics - English The Benefits of Increased PGC-1alpha Expression

Capturing process – Challenges and opportunities

A presentation given at Newcastle University discussing the challenges of capturing research process and how experimental science might be wired into the linked data web.

See original: Science in the Open Capturing process – Challenges and opportunities

First biology on SANS2d – Will accelerator source time-of-flight SANS deliver for structural biology

Neutrons in Biology – Santa Fe – 24-29 October 2009
First Biology on SANS2d
View more presentations from Cameron Neylon.

See original: Science in the Open First biology on SANS2d – Will accelerator source time-of-flight SANS deliver for structural biology

Crowdsourcing expertise

Can ordinary citizens help policymakers solve the most pressing problems of our time? That's what elections are supposed to be for - but when they fail, it might be worth trying something like ExpertLabs, a new effort launched today to tap into collective public expertise to better inform policymaking.

ExpertLabs is a new initiative of the American Association for the Advancement of Science and headed up by blogger Anil Dash. Other high-level names have joined up: $500,000 in seed funding comes from the John D. and Catherine T. MacArthur Foundation, and the White House Office of Science and Technology Policy (OSTP) has signed up to the concept.

It's surely a worthwhile experiment, but the question is what will actually result from it. Other efforts to increase webbiness and transparency in the Obama administration have suffered glitches, from a White House press site that took a while to get its press releases up on time to an OSTP blog that promised dialogue but ended up with the usual handful of rambling public comments rather than any sort of interactive and stimulating conversation.

Stay tuned to see if ExpertLabs delivers on its arm-waving promises of today.

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See original: Science News Crowdsourcing expertise

2009 November 18

2009 November 18



Water Discovered in Moon Shadow Credit: LCROSS,

Why is there water on the Moon?

Last month, the
LCROSS mission crashed a large
impactor into a
permanently shadowed crater near the
Moon's South Pole.

A plume of dust rose that was visible to
the satellite,
although hard to discern from Earth.

The plume is shown above in visible light.

Last week, the results of a preliminary chemical analysis gave a clear indication that the
dust plume contained water.

Such water is of importance not only for understanding the
history of the Moon,
but as a possible reservoir for future astronauts trying to
live on the Moon for long periods.

The source of the
lunar water
is now a topic of debate.

Possible origins include many small meteorites,
a comet, or primordial
moon soil

dark tomorrow

See original: Astronomy Picture of the Day
 - Page2RSS 2009 November 18

Liked "Predatory Coral Eats Jellyfish" http://ff.im/bBeJu

EvoMRI: Liked "Predatory Coral Eats Jellyfish" http://ff.im/bBeJu

See original: Twitter Liked "Predatory Coral Eats Jellyfish" http://ff.im/bBeJu

Liked "Penguins and Sea Lions Help Produce New Atlas" http://ff.im/bBxRM

EvoMRI: Liked "Penguins and Sea Lions Help Produce New Atlas" http://ff.im/bBxRM

See original: Twitter Liked "Penguins and Sea Lions Help Produce New Atlas" http://ff.im/bBxRM

Plants Have a Social Life Too

After decades of seeing plants as passive recipients of fate, scientists have found them capable of behaviors once thought unique to animals. Some plants even appear to be social, favoring family while pushing strangers from the neighborhood.
Research into plant sociality is still young, with many questions unanswered. But it may change how people conceive of [...]

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See original: Science News Plants Have a Social Life Too