Blood's clotting cells harbor 'ticking time bombs,' finding may help extend blood supply
...hey found evidence in mice that prosurvival Bcl-xL constrains the activity of suicide-inducing Bak to maintain platelet survival. As Bcl-xL degrades, older platelets are primed for cell death. Genetic or drug treatments that blocked Bcl-xL reduced platelets life span and caused mice to become platelet deficie...Complexity constrains evolution of human brain genes
...nscription may increase gene-gene interactions and constrains coding-sequence evolution." Future studies of brain function and evolution will increasingly take advantage of the approaches of systems biology, Wu suggested. "The slowdown in genetic evolution in the more advanced organs makes sense," he said, ......ent forms of dynamical behavior, evolution perhaps constrains the dynamics that occur. As selection on life-history traits (e.g. investment in fecundity vs. survival) is likely to have population dynamical consequences, models investigating the evolution of dynamics should be undertaken in a life-history framew...New findings in taste and smell research
... Thus, even at microscopic scales, physics tightly constrains the chemical signaling process, dictating sperm navigation. [Oral, Saturday, April 16, 8:45pm] Authors: Riffell J. (1), Zimmer R. (2) 1 ARL Division of Neurobiology, University of Arizona, Tucson, AZ; 2 Ecology and Evolution, University of C...The world's smallest synchrotron, MIRRORCLE-6X, now commercially available
...chrotron light is thus expensive, which ultimately constrains aspirations on its usage. What makes MIRRORCLE-6X so intriguing is that for the first time it may be possible to proliferate synchrotron light with a very low entrance fee. This is the dream of Professor Hironari Yamada, researcher and inventor at Ri...Study in Royal Society journals presents evidence for inherited factors in homosexuality
...dators. Natural selection from predators therefore constrains the evolution of sexually selected traits in dragon lizards. Contact: Dr Terry Ord, Department of Biology, Indiana University, 1001 East 3rd Street, Jordan Hall 142, BLOOMINGTON, IN 47405, USA A temporal analysis shows major histocompatibility compl...