Tucson chemist wins national award for studies of life molecules
...ke With the 10 Commandments and all, why do people behave so badly?, he said. Then in high school I had a physics teacher who knew I was interested in the relationship between knowledge and ethics and behavior, and he told me science was where all these modern questions were going to be answered. He was tru...Unique social system found in famous Tsavo lions
...tyles and behavior patterns. How does Panthera leo behave in markedly different habitats and climates? asks the studys co-author Bruce Patterson, PhD, MacArthur curator of mammals at The Field Museum. Studying lions in Tsavo indicates that the king of the beasts has a lot of tricks up its sleeve that confus...USF neuroscientists study potential of cord blood cells to rescue aging brain
...much bigger and trickier hurdle is getting them to behave like neurons in the brain. The USF study will use a model of aging rats to test the following: Which growth and nutritional factors best prompt malleable HUBC cells to follow pathways that lead the immature cells to become specific types of neurons...Disorder forces DNA molecules out of tight spaces
...ew understanding of how large biological molecules behave in tiny spaces could lead to a method for separating DNA strands by length. It also could throw light on the way molecules move in living cells. Using a forest of nanofabricated pillars so small that DNA molecules can only slip through lengthwise, C...Gene may link alcohol drinking and stress, mouse study suggests in Science
...xperiences. If humans with variations in this gene behave the same way, a fairly simple test may identify recovering alcoholics likely to relapse under stress, according to Spanagel. "We think that, with our model, we have the neurobiological mechanism underlying a very specific phenotype of alcoholic pati...Can we learn about sex from animals?
...about our behavior, as though we are programmed to behave in only a certain way. Then again, we have scientists who sometimes completely ignore the social or political biases that can affect our work." Zuk wrote the bulk of her book in 1999-2001. "Sexual Selections" addresses several politically charged t...Physics tip sheet #13 May 15, 2002
... change the dynamics of neutron stars and how they behave astrophysically. New detailed simulations have shown how hot nucleic matter can form the various pasta phases as it cools. The matter seems to pass through a series of phases starting from uniform matter and heading through spherical, cylinder-like, ...Rats depleted of salt become sensitized to amphetamine, show unusual growth of brain cells
...t more rapidly and in greater quantities. Why they behave this way is unknown, Bernstein said. "That research and ours seem to indicate that being hungry or sodium deprived enough can change an animal's or a person's response to a drug even if they have not been exposed to the drug previously," she said. ...The mind may help restore movement to the immobile
...e last 20 years has shown how neurons in the brain behave when we move our arms. More recently, this work has led to demonstrations of technology that may restore movement to the immobile. Reporting in the Friday, June 7, issue of the journal, Science, scientistsfrom The Neurosciences Institute here, in...Study finds genetic aberrations linked to lung cancer; Could help in early diagnosis
...sity haveidentified more than two dozen genes that behave abnormally incancerous lung cells. The finding could lead to new tests fordiagnosing lung cancer. Led by Ming You, a professorof molecular virology,immunology and medicalgenetics, the researchers found14 genes that areover-expressed - meaning theyare...Virginia Tech researchers receive $450,000 award to model cell division
...ith these equations we can predict how a cell will behave under many different conditions." Although a huma...human cell is made of the same sorts of parts that behave in the same way. It was found that "the molecular constituents of the cell cycle control system are...New signaling pathway found, may be linked to movement disorders
...broblast growth factor 14 (FGF14) may not actually behave like a growth factor. The research suggests that FGF14 is instead involved in transmitting signals from one nerve cell to another and may help regulate walking and other movements. The protein could, therefore, be linked to movement disorders such as......- such as the theories of sociobiology that humans behave as biological machines -- carry considerable emotional baggage, said Vogel. So, perhaps the modest muscle can do some help carry the load in explaining how our biological origins matter. "Maybe one should back off onto somewhat more neutral ground l...New microscope technology allows study of biomolecules interacting with minerals
...n the aqueous phase. "We do know how siderophores behave with iron in water," Kendall states, "But we don't know how they interact with iron that is locked up in a mineral structure. This is important because minerals are a primary source of iron in the environment." Kendall's research is looking specific...Gene trigger for pancreas formation identified
... is that these cells don't just die; they go on to behave as a different tissue," he said. "That is very powerful information when you are thinking about manipulating stem cells in the laboratory. Because you know now--at least for some genes--that you can put them in or take them away and you don't kill ...Technique to induce cancer cells to 'commit suicide' developed by Hebrew University scientists
...ing of a virus that will induce the cancer cell to behave in a manner similar to that of normal cells that are under attack. In normal cells which have been attacked by a virus, a protein known as PKR is activated as the result of RNA replication within the affected cell. This protein causes the cell to d...Scientists identify 'genetic signature' of stem cells
...tly scientists identify stem cells by the way they behave and by chemical markers on the cell surface. However, the genes that give rise to these characteristics remained largely unknown. A comprehensive catalog of stem cell genes could refine the identification process, as well as reveal the mechanisms tha...Biologists new experiment may vindicate Darwin
...oupled with small differences in the way organisms behave could lead to speciation without any other external factors," says Fry. "This is this first time this idea has been tested in the same way it might happen in nature. If we can get the flies to start exhibiting changes with these tests, then it's very...NSF awards $4.3 million to Rutgers for Maize Genome Sequencing Project
...e doing should provide insight into how they might behave when strains are crossbred. More precise information about the maize genome will also enable researchers to manipulate the plant's genes to create a more nutritious or viable corn without the controversial biotechnology used in genetically modifie...Purdue creates self-generating nanotubes with 'dial-up' properties
...ubes that are made of the same materials, but that behave differently," Fenniri said. "Just like a flipped-over puzzle piece doesn't fit in its hole, a left-handed nanotube can react with different substances than its corresponding right-handed tube." While experimenting with controlling their nanotubes' ...