Tag: "classical" at biology news
Biggest physics meeting of the year
...n (97-99%) belonged to a lower class that followed classical
thermal distribution equations, while the upper class (1-3%) followed a "superthermal" model in which the distribution parameters change over time with the rise and fall of the stock market. Juergen Mimkes of Germany's Paderborn University argues tha...
Turkish scientist's discovery of how proteins work
...iously been achieved and 200 times better than the classical
diffraction limit of light," said Professor Paul R. Selvin, who supervised his graduate work at the University of Illinois, Urbana-Champaign. "Ahmet then applied this technique to measure how Myosin V, a biomolecular motor involved in intracellular t...
UF scientists trace origin of shark's electric sense
...shows up in the electroreceptors." Dye tests are a classical
way of mapping cell movements during development, and have been used to explore the origins of limbs and brain cells. In the current research, scientists used genetic markers to trace neural crest cells. "Dye labeling would be interesting and further...
Long-term memory controlled by molecular pathway at synapses
...to stimuli in subsequent behavioral tests. Using a classical
learning test that simultaneously exposes the insects to an odor and an electric shock, the researchers found that long-term memory could be greatly increased by adjusting the activity of the RISC pathway in the fruit flies. "In essence, these flie...
A spoonful of sugar makes some kids feel good
... evaluate response to pain, the researchers used a classical
model known as the cold pressor test, measuring how long subjects were able to keep their hands in a cold water bath maintained at 50 degrees F (10 C). The cold pressor test was repeated twice, once with the subject holding a 24 percent sucrose solut...
Leibniz Prize winners 2006
...rch encompasses both ancient philosophy as well as classical
literature, two areas which have usually only been studied entirely separately in the past. A particular feature of her work is the fact that she puts her research in the broader cultural and hermeneutic context. With her approach of crossing the nor...
Modern technology helps shed light on illnesses in artists of the past
...ments of many of the world's best-known composers, classical
painters, authors and sculptors. The associations ...cey Louis Hector Berlioz (1803-1869) was a famous classical
music composer. Thomas De Quincey (1785-1859) was an English essayist. Both were addicted to opium, ...
Olfactory system detects pheromones that control reproduction
...togenesis and testosterone production. "One of the classical
dogmas is that LHRH neurons receive inputs from th...ct of pheromonal cues on LHRH release. But because classical
tracing techniques could not specifically identify the connection of neuronal subsets, they ended up...
Technique offers new view of dynamic biological landscape
...ere interacting with each other. "By contrast, in classical
genetics, you begin with a process you're interested in -- for example secretion -- and look for all the genes that affect secretion. It's a productive approach, but it's very process oriented," he said. "You might find a given gene that's involved i...
Important factors involved in the synthesis of starch in plants
...hnology. Biosynthesis of starch According to the classical
model for explaining the biosynthesis of starch, s...to conclude that, contrary to that proposed in the classical
model, most ADPG linked to starch biosynthesis is concentrated in the cytosol. This cytosolic locati...
Requirement for high-level mental processing in subliminal learning
... unify two lines of research--our understanding of classical
learning and a phenomenon known as the attentional blink--to achieve an important demonstration that high-level mental processing is required even for subliminal learning. Subliminal learning is a low-level perceptual learning process that can occur ...
APS physics tip sheet #53
...on that large objects, such as baseballs, obey the classical
physics of Newton, while light objects such as electrons and other particles obey the counterintuitive laws of quantum mechanics. The new research suggests that this idea can be tested using neutrinos created in the early universe. If gravity breaks ...
Mammalian transcriptome mapped, and it makes antisense
...e for proteins and therefore does not fit into the classical
definition of a gene.) While Wahlestedt and his consortium colleagues found 20,714 protein-encoding RNA transcripts--which was what the scientists expected, since there are about 22,000 genes in the human genome--they found an even larger number of n...
Anthrax test, developed by army and CDC, receives FDA approval
...ientist John W. Ezzell, the Gamma Phage Assay is a classical
bacteriological method that has been used at USAMR...on of the assay as substantially equivalent to the classical
assay used prior to 1976, it will be available for use for testing in designated civilian and milita...
Simple explanation for complex pattern of feather development
...dings provide the best experimental evidence for a classical
theory for growth of complex biological structures. In the 1950's, Alan Turing, mathematician, pioneering computer scientist and code-breaker, proposed that repeated patterns could emerge through the interactions among chemical morphogens or molecule...
Long-sought flower-inducing molecule found
...ified a "messenger molecule" that fulfills all the classical
properties of Florigen. A gene called "FT" produces the "messenger molecule". This gene is active in leaves and its activity is controlled by the length of the day. When the gene is activated, a messenger molecule is produced that is transported to t...
Happy and passive means more productive animals
... out of the animals, is the first major advance in classical
breeding in 20 years, said William Muir of the Pur...vior and injuries. The study also showed that when classical
breeding approaches were used, competition became worse and productivity declined, he said. The only...
Behavioural ecologists elucidated how peahens choose their mates, and why
...gth of sexual selection. Professor Marion Petrie's classical
studies have shown that females prefer males with a high number of ocelli. However, a remaining question concerning the role played by ocelli is how peahens value their number. New research published today in Ethology describes that females may actua...
Scientists characterize proteome of human cornea
...t 15% of the identified proteins in the cornea are classical
blood proteins, which indicate that they originate from the blood stream around the cornea and are not produced in the cornea," notes Dr. Enghild. "Our results also showed that proteolysis and post-translational modifications of proteins are common e...
The genetic origins of corn on the cob
...echt, "We solved this enduring puzzle by combining classical
and modern molecular genetics. The former included our use of transposable elements or 'jumping genes'--discovered at Cold Spring Harbor by [Nobel laureate] Barbara McClintock--to 'tag' the ramosa1 gene. That enabled us to isolate the gene and determ...
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