The pathway to anxiety begins early in life
...ents. Through sophisticated and novel genetic tools, Dr. Hen and his colleagues were able to turn off and on the gene for the serotonin receptor in different locations in the mouse brain and during different times in development. They then could monitor the resulting anxiety-li...Chimpanzee stone tool site excavated
...rally that some subsets of artifacts from the more sophisticated Oldowan assemblages could be seen as material proof that early hominids were able to eat nuts contained in hard shells. The archaeologists will continue the excavation of chimpanzee sites in the African forest and explore the implications of this wor...Archaeological journey reveals new information on chimpanzee stone tool technology
...acking sites and that some artifacts from the more sophisticated Oldowan assemblages could be proof of hard-object feeding by hominids. "We know that flaked stone tools were used 2.5 million years ago, but stone tools may have been used by hominids as long as 5 million years ago," said Panger, a coauthor on the ar...1st evidence that nuclear transplantation ('therapeutic cloning') can eliminate tissue rejection
...sted in a large-animal model, the cow, which has a sophisticated immune system similar to that of humans. "These results bode well for the future of human therapeutic cloning," said Robert Lanza, Vice President of Medical & Scientific Development at ACT, and lead author of the study. "Cloning could theoretically p...Hebrew University student develops method to check if AIDS patients developed resistance to drugs
...ttle as $100 to conduct, she said. It also is more sophisticated than current tests and the results will indicate w...DNA into electronic signals and were looking for a sophisticated group of interactions to study. Prof. Kotler, who conducts AIDS research at the Faculty of Medicine,...Science editor explores the role of environmental change on global security
...Jordan. Although computer modeling has become more sophisticated in recent years, Kennedy pointed out that there is a great deal scientists do not know about predicting future environmental conditions on Earth. "It suggests to me, at least, the difficulty of saying with respect to climate change that some parti...New robotic microscope helps scientists track cells over time
...differences are in the fast and precise motors and sophisticated computer programs that automatically focus the objective, move the stage, and photograph cells growing in a plastic tissue culture plate. For each plate of cells, the microscope first focuses on an internal reference point. It then moves the plate a...Rutgers geneticists discover probable causes of hybrid plant vigor
...t could be a pretty major undertaking but with new sophisticated analyses looking at tens of thousands of genes at a time, it may be possible."...Fried green tomatoes: Transgenic tomatoes reveal critical component of thermotolerance
...sile nature has necessitated the evolution of more sophisticated heat stress response machinery. Although the tomato genome has not been fully sequenced, Dr. Lutz Nover and colleagues have already identified a protein called HsfA1 as a master regulator of the tomato heat stress response. HsfA1 is a heat stress tr...Genome protects itself against mobile junk DNA
...atode C. elegans keeps transposons in check with a sophisticated mechanism. Due to the mechanism, the transposons cannot make any of the proteins needed to jump through the DNA. In this manner the nematodes render the transposons virtually harmless. The dcr-1 gene seems to play a crucial role in the mechanism. Dur...Bacterial quorum-sensing structure solved
...he national laboratory's Advanced Photon Source. A sophisticated computer program then transformed millions of X-ray data points from the crystallized protein into an atom-by-atom, three-dimensional map of the molecule. The result was a microsecond snapshot, the Nature authors say, of quorum sensing in progress ...New UNC study reveals screening tests can boost early discovery of AIDS virus
...ose grouped specimens, a new study shows. The more sophisticated testing, now used by the nation's blood banks, would be a distinct improvement over routine antibody tests, which cannot detect the virus for up to two months post-infection, researchers say. Nucleic acid screening of pooled blood can boost the tota...Researcher is using nature's command and control network to develop ways to engineer organisms
...hat machinery, but to control it so it can do more sophisticated tasks," he says. "Currently when we want a desirable trait in an organism, we introduce a gene that we put under artificial control to make a large quantity of the protein product of that gene." The protein forces the organism to perform the desired ...CWRU scientists demystify protein at root of arthritis
...ter for Cardiovascular Biomaterials at CWRU. Using sophisticated image processing, the team mapped images of aggrecan onto the human genome and discovered that the kinks in their images lined up with places where aggrecan gets degraded in osteoarthritis. The result provides a link between aggrecan's structure and...Carbon nanotubes found to fluoresce
...nd nanoelectronics applications. "Some of the most sophisticated biomedical tests today -- such as MRI exams -- cannot be performed in a doctor's office because the equipment too large and too expensive to operate," said Smalley, University Professor at Rice. "Because nothing in the human body fluoresces in the ne...Energy Department awards $103 million for post-genomic research
...Genome program. None of this is achievable without sophisticated new computational tools. Thus, to help these achieve insights, researchers will develop computational tools to predict the functions and behaviors of complex biological systems. More information on the Genomes to Life program is available at: http:/...Retroviruses shows that human-specific variety developed when humans, chimps diverged
...n normal genes may, in truth, be more like a vast, sophisticated chess game on an enormously complex board. This is the first evidence, however, that suggests they may have made humans what they are today....Computational geneticists revisit a mystery in evolution
...ing, all roads lead to Rome. ''We're taking a more sophisticated view of evolution as a process,'' says Bergman, wh...genomics - scientists have greater knowledge about sophisticated gene interactions during development. This technology helps scientists analyze the functions of gene...Songbird population declines linked to acid rain
...mes. Cornell ecologists used the data collected in sophisticated statistical analyses to produce a model that predicted where acid rain's effects might be most severe for a bird whose life and reproductive success depend on food it finds on the forest floor. The model predicts that, after statistically adjusting f...A thermodynamic history traces temperature's effect on Universe, Earth and humans
...th's crust has essentially given rise to creatures sophisticated enough to ponder radioactivity. "The radioactive alpha particle decay of a few kinds of nuclei heats the Earth's crust, which convectively creates fire just below the surface," he writes. "Forced up through the ocean bottom in hydrothermal vents, ...