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Archive: 11/27/2008

Biologists find new environmental threat in North American lakes

A new and insidious environmental threat has been detected in North American lakes by researchers from Queen's and York universities.

Biology /

created Nov 27, 2008 | popularity 4.2 / 5 (34) | comments 11

Master gene plays key role in blood sugar levels

When mice that lack steroid receptor-2 (SRC-2) – a master regulator gene called a coactivator – fast for a day, their blood sugar levels plummet. If they go another day without food, they will die.

Medicine & Health / Genetics

created Nov 27, 2008 | popularity 5 / 5 (3) | comments 0

UW tackles neglected realm of training for science professors in training

U.S. science and engineering students emerge from graduate school exquisitely trained to carry out research. Yet when it comes to the other major activity they'll engage in as professors – teaching – they're usually left ...

Other Sciences / Other

created Nov 27, 2008 | popularity not rated yet | comments 0

Scientists discover a new way in which epigenetic information is inherited

Hereditary information flows from parents to offspring not just through DNA but also through the millions of proteins and other molecules that cling to it. These modifications of DNA, known as "epigenetic marks," act both ...

Biology /

created Nov 27, 2008 | popularity 4.8 / 5 (17) | comments 1

Keeping chromosomes from cuddling up

If chromosomes snuggle up too closely at the wrong times, the results can be genetic disaster. Now researchers have found the molecular machines in fruit flies that yank chromosomes, the DNA-carrying structures, ...

Biology /

created Nov 27, 2008 | popularity 4.7 / 5 (3) | comments 0

Experimental TB drug explodes bacteria from the inside out

An international team of biochemists has discovered how an experimental drug unleashes its destructive force inside the bacteria that cause tuberculosis (TB). The finding could help scientists develop ways to treat dormant ...

Medicine & Health / Medications

created Nov 27, 2008 | popularity 4.5 / 5 (10) | comments 1

Scientists identify genomic causes of a certain type of leukemia relapse

Scientists at St. Jude Children's Research Hospital have identified distinctive genetic changes in the cancer cells of children with acute lymphoblastic leukemia (ALL) that cause relapse. The finding offers a pathway to designing ...

Medicine & Health / Research

created Nov 27, 2008 | popularity 4.5 / 5 (2) | comments 0

Speed matters for ice-shelf breaking

It won't help the Titanic, but a newly derived, simple law may help scientists improve their climate models and glaciologists predict where icebergs will calve off from their parent ice sheets, according to a team of Penn ...

Space & Earth / Earth Sciences

created Nov 27, 2008 | popularity 3.8 / 5 (13) | comments 4

Fast molecular rearrangements hold key to plastic's toughness

(PhysOrg.com) -- Plastics are everywhere in our modern world, largely due to properties that render the materials tough and durable, but lightweight and easily workable. One of their most useful qualities, ...

Chemistry /

created Nov 27, 2008 | popularity 4.5 / 5 (2) | comments 0

Researchers Say Tides Can Cut Life Short On Planets Orbiting Smaller Stars

(PhysOrg.com) -- Planet hunters searching for planets suitable for life will likely find them first around low-mass stars because it's technically easier than finding such planets around hotter, more massive ...

Space & Earth / Astronomy

created Nov 27, 2008 | popularity 4.3 / 5 (14) | comments 0

Mother of Pearl Secret Revealed

(PhysOrg.com) -- In addition to its iridescent beauty, mother of pearl, or nacre, the inner lining of the shells of abalone, mussels and certain other mollusks, is also renowned for an amazing strength and ...

Nanotechnology / Nanophysics

created Nov 27, 2008 | popularity 4.4 / 5 (28) | comments 0

Researchers Report New Record for Wireless Base Station Power Amplifiers

(PhysOrg.com) -- When consumers use their cell phones, reception can depend on the strength of the signals coming to and from wireless base stations. Those base stations in turn depend on high-power amplifiers ...

Technology / Semiconductors

created Nov 27, 2008 | popularity 4.6 / 5 (9) | comments 3

Neuroscientists isolate gene essential to early brain development

University of Queensland neuroscientists have discovered the crucial role a specific gene plays in forming the neural tube, the earliest identifiable structure in the developing brain and an essential precursor to the entire ...

Medicine & Health / Research

created Nov 27, 2008 | popularity 4.7 / 5 (9) | comments 0

Keep big fish in their small ponds -- or in the ocean, says research

(PhysOrg.com) -- Scientists at the University of Toronto analysed Canadian fisheries data to determine the effect of the "keep the large ones" policy that is typical of fisheries. What they found is that the effect of this ...

Biology /

created Nov 27, 2008 | popularity 4.9 / 5 (9) | comments 1

A carbon-neutral way to power your home

(PhysOrg.com) -- A super-efficient system that has the potential to power, heat and cool homes across the UK is being developed at Newcastle University.

Technology / Energy & Green Tech

created Nov 27, 2008 | popularity 4 / 5 (35) | comments 17