York mathematician probes geometric route to combat viruses
... build up a group of mathematicians, computational biologists and biophysicists to address a portfolio of projects arising from these results. This grant will enable Dr Twarock to expand her group and fund three postdoctoral positions and four PhD students. The group will collaborate closely with the Astbury ...NYU scientists identify how development of different species uses same genes with distinct features
...ems. Fruit flies development is well-understood by biologists and therefore serves as an appropriate focus for genetic analyses. In this study, the researchers sought to explore the generality of developmental mechanisms by comparing Drosophila with Nasonia, a distant species that diverged over 250 million year...New book presents neurobiology from an evolutionary perspective
...of as creepy pests or as an exotic dinner. But to biologists who are interested in behavior, memory, sensation, and other neurological phenomena, these organisms provide valuable information about the inner workings of complex nervous systems. A new book, An Introduction to Nervous Systems , recently releas...MIT device draws cells close -- but not too close -- together
...ce, a microelectromechanical system (MEMS), allows biologists to physically arrange cells to be either touching,...luble molecules that flow between separated cells, biologists need to vary the spacing of cells to study their interactions. Also, since some signals induce a cel...Biologists call for better choice of model organisms in 'evo-devo'
...to illustrate key questions about evolution, argue biologists in the latest issue of Nature Reviews Genetics. The subject of evo-devo, which became established almost a decade ago, is particularly dependent on the six main model organisms that have been inherited from developmental biology (fruit fly, nematod...MIT's ocean model captures diversity of underwater forests
...ocean systems in a way that is consistent with how biologists think of them-water filled with millions of diverse microbes that wax and wane in relative abundance through interactions with each other, and the environment, as dictated by natural selection," said Chisholm. Indeed the guiding principle of the ne...The delayed rise of present-day mammals
...pecies we see today. "For many years, molecular biologists and paleontologists shared different views about the rise of present-day mammals," said a team member, Ross MacPhee, a curator in the Division of Vertebrate Zoology at the American Museum of Natural History. "Extensive molecular data indicate that...Light-activated therapy targets DNA components
Blacksburg, Va., March 27, 2007 Chemists and biologists at Virginia Tech continuing to design light-activated molecular systems to attack cancer cells have introduced a DNA targeting component. They will present the research at the 233rd national meeting of the American Chemical Society in Chicago March...Engineering the heart piece by piece
...orative research between engineers, clinicians and biologists for successful cardiovascular tissue engineering research. Although there remain tremendous technological challenges, we are now at a point where we can engineer first-generation prototypes of all cardiovascular structures: heart muscle, tri-leafl...Fruit fly gene research may shed light on human disease processes
...ethal to embryos of mammals and flies. That's why biologists want to understand the process of "chromosome counting." Early in his career, Erickson was part of the research team that identified the genes involved in counting Drosophilia sex chromosomes. Now, he and Avila have made another breakthrough, iden...Salamanders suffer delayed effects of common herbicide
...using die-offs in stream salamanders, according to biologists who say findings from their long-term study raise concerns over the role of atrazine in global amphibian declines. The results also suggest that while impacts of the herbicide, atrazine, may not show up in short-term studies, even extremely low conc...Jefferson scientists uncover gene mutation that cuts colon polyps, may suppress cancer
(PHILADELPHIA) Cancer biologists at the Kimmel Cancer Center at Jefferson have found a gene mutation that can dramatically reduce the number of colon polyps that develop, and in turn, potentially cut the risk of cancer. In experiments with mice genetically prone to develop poly...Do you need sex to be a species?
...s have remained an enduring enigma in part because biologists are still debating whether the species actually exist as true evolutionary entities. And if they do, what forces determine how they diverge? In the traditional view of species diversification, interbreeding promotes cohesion within a populationmainta...Paleontologists discover new mammal from Mesozoic Era
...nd. Consequently, paleontologists and evolutionary biologists have been searching for more than a century for cl...mmals from China have built the evidence such that biologists and paleontologists are able to make sense of how developmental mechanisms have impacted the morphol......launched initiatives to tackle the problem. Now, biologists at The University of Manchester have shown that chemicals called azoles the active agent in many antifungal drugs kill the TB bacteria, and could be effective in tackling the emerging drug-resistant strains. "TB is back with a vengeance with a th...Location, location -- Cell sizes, lives influenced by host size
... span of its cells, a finding that could help cell biologists and physiologists understand cell and organ function and their relation to disease. "Although cells are basic building blocks, their metabolic rates depend on where they find themselves living," said Van M. Savage, Ph.D., the lead author of the res...Researchers learn what sparks plant growth
...s, a member of the mustard family that is to plant biologists what the mouse is to mammalian geneticists. "How do organisms decide when to grow and when to stop growing? These questions are especially important in plants because they are rooted in the ground and must alter their shape and size in response to ...Drivers and passengers on the road to cancer
... ride. The study shows that a challenge for cancer biologists will be to distinguish the drivers from the larger number of passengers. "The human genome is a vast place and this, our first deep systematic exploration in cancer, has thrown up many surprises", said Professor Mike Stratton, co-leader of the Canc...CMU researcher publishes anole lizard findings
...cies sort of like a flying flag and evolutionary biologists study it closely because the anoles fully extend these dewlaps as signals when mating or establishing territory. Biologists have wondered whether anoles species that live in a very similar habitat, such as a tree top, also developed some of the sam......t can serve as a reference map of the cell for all biologists interested in its architecture," says Johanna Hg. "You can extract information about all sorts of cellular structures and processes from it or use it to place findings into the spatial context of the cell." Yeast is one of the most commonly used mode...