(PhysOrg.com) -- Apparently, the mysterious "3/4 law of metabolism" -- proposed by Max Kleiber in 1932, printed in biology textbooks for decades, explained theoretically in Science in 1997 and described in a 2000 essay in ...
Mathematics
Feb 3, 2010
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Humans share at least 97 percent of their genes with chimpanzees, but, as a new study of transcription factors makes clear, what you have in your genome may be less important than how you use it.
Cell & Microbiology
Dec 7, 2009
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(PhysOrg.com) -- Were dinosaurs endothermic (warm-blooded) like present-day mammals and birds or ectothermic (cold-blooded) like present-day lizards? The implications of this simple-sounding question go beyond deciding whether ...
Plants & Animals
Nov 11, 2009
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Scientists at the University of Bonn, Germany, have discovered a previously unknown fruit fly gene that controls the metabolism of fat. Larvae in which this gene is defective lose their entire fat reserves. Therefore the ...
Biotechnology
Nov 2, 2009
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According to new research from the Monell Center and the Mount Sinai School of Medicine, certain common herbicides and lipid-lowering fibrate drugs act in humans to block T1R3, a nutrient-sensing taste receptor also present ...
Biochemistry
Oct 9, 2009
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Flies fed an "anti-Atkins" low protein diet live longer because their mitochondria function better. The research, done at the Buck Institute for Age Research, shows that the molecular mechanisms responsible for the lifespan ...
Biotechnology
Oct 1, 2009
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(PhysOrg.com) -- Large, lumbering animals such as elephants move much more efficiently than small, agile ones such as mice, University of Manchester scientists have shown.
Evolution
Sep 7, 2009
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A study in the September 4th issue of the journal Cell identifies a gene that springs into action in response to a high fat diet. Mice that lack the gene become essentially immune to growing obese, regardless of their eating ...
Biotechnology
Sep 3, 2009
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Burrowing frogs can survive buried for several years without food or water. Scientists have discovered that the metabolism of their cells changes radically during the dormancy period allowing the frogs to maximize the use ...
Plants & Animals
Jun 29, 2009
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(PhysOrg.com) -- Runners, listen up: If your body is telling you that your pace feels a little too fast or a little too slow, it may be right.
Evolution
Mar 19, 2009
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