Researchers solve the mystery of a key structure in immune system cells
...t thought that the immunological synapse served to simply amplify signals between cells. But the team found in previous experiments that during the height of the immunological synapse formation, when the signaling should have been the strongest, there was only the merest trickle of signal. Most of the T-cel...Estrogen improves short term memory and oral reading in midlife postmenopausal women
...nsitive to estrogen; they indicate estrogen is not simply a panacea for a range of cognitive difficulties, but has specific effects which can be explained through its actions on phonologic processes."...Study of bees by UC San Diego biologist provides insight into evolution of bee communication
...food with dances in their hives and why other bees simply leave scent trails from the food source to the nest. In the paper to appear in the October 22nd issue of the Proceedings of the Royal Society, biologists at the University of California, San Diego and the University of So Paulo report that one specie...Fruit odors lure some flies to evolve into new species
.... pomonella species complex. These blends are not simply ignored; some actually deter apple maggots. Roelofs' lab has begun field trials to see if introducing the dogwood and hawthorn odor, or components of it, into apple orchards or around the fruit itself could provide a means of organic pest control aga...Discovery may be first plant cell surface molecule that halts cell proliferation
...ons may operate here. One is that the switches are simply physically linked. Or it could be that the 'off' switch and the 'on' switch are each regulated by external signals. They agree, however, that either scenario is extremely exciting. "I think this opens up a new paradigm that may not be specific or uni...SPR Annual Meeting features newsworthy discoveries
...uldn't rule out the possibility that they may have simply been picking up interference signals created by th...e pictures of attack or erotica, while others were simply neutral. Both men and women showed similar activation patterns in an area of the brain called the v...Cells' ability to live without oxygen give clues for treating major diseases
..."But the final result is the same," he says. "They simply become stronger, tougher and more resistant to injury, and for those in tumors, more resistant to cancer therapies." The researcher, whose latest findings are featured in recent issues of the Journal of Biological Chemistry and American Journal of P...Research on relative species abundance provides new theoretical foundation
...many of the ecological patterns we see can be more simply and often better explained if competing species are treated as if they were essentially identical. "This theory flies in the face of 50 years of research that has celebrated the uniqueness of all species in nature," said Hubbell, a professor of plant...Forest preservation work turns to Carolina hemlock
...ronment. In addition, many of the forest practices simply aren't sustainable, and economies suffer as resources are depleted and not renewed." Even worse, according to Romero, is the loss of the forests' unique genetic treasures. "The destruction of these forests represents an irreversible loss of species, ...Unraveling the genetics of fusiform rust
...ene model. According to this model, disease is not simply a character of the pine host, but rather a result of the interaction between specific genes (resistance genes) in the host and specific genes (avirulence/virulence genes) in the pathogen. Simply put, each gene for resistance in the pine corresponds t...Pinpointing viruses in body scans
...to samples of body fluids; in patients, they would simply be injected. If live viruses are present, they stick to the antibodies on the nanoparticles, forming a large cluster of particles which can then be detected through magnetic resonance imaging (MRI) or nuclear magnetic resonance (NMR) scans. "The anti...Sex matters in health promotion and disease prevention
...ders and the public of the fact that men and women simply differ when it comes to health and disease." Greenberger referred to the 2001 Society-sponsored Institute of Medicine (IOM) report, Understanding the Biological Contributions to Human Health: Does Sex Matter?, which concluded that sex determines dif...Scientists map signaling molecule crucial to survival, disease
...makes up a protein. The addition of the phosphate simply composed of one phosphorous atom and four oxygen atoms changes the chemical nature of the amino acid, which in turn changes the protein's shape and prompts a new interaction with a second protein. "Every cellular process is controlled at some level...Small subset of cells has big role in controlling immunity, study finds
...ssed the proliferation of T-cells. "The idea of it simply being expressed in the dendritic cells completely alters our understanding of how dendritic cells talk to T-cells," Dr. Mellor says. "What is it that makes a dendritic cell decide to express IDO or not, that is the key question." Now in animal studie...Findings in frog oocytes may help study of chromosome physiology
...there. The fact that it is in the nucleolus may be simply to prevent its association with XCAP-D2 at this stage. Perhaps at this stage condensation is not wanted but active transcription is necessary. This might be one way to prevent condensation. The nucleolus is acting as a trap for this nuclear protein'...Development of hair depends on development of the hair channel
...art of the reason for this may be that researchers simply haven't appreciated the importance of the hair channel in forming the hair." Like grafting skin for wounds, researchers might eventually be able to transplant hair for the treatment of balding. The latest results bring scientists one significant step...Brain patterns the same whether doing or just watching, Queens researcher discovers
...similar whether we are actually doing something or simply watching someone else do it. It's an insight tha...en watching a task being performed, subjects don't simply follow the movement of hand and block with their eyes. Instead, their gaze shifts in anticipation of...Measles on the rise as vaccinations fall in the UK, Science study reports
...int where outbreaks in the U.K. population may not simply fizzle out. "My hope is that this is a warning signal for the parents," said Vincent Jansen, the first author on the paper, a Wellcome Trust researcher from Royal Holloway, University of London in Egham, Surrey in the United Kingdom. "We are approac...UNC studies identify key genes involved in blood vessel development
...hugely increased."Thus, the findings indicate that simply over-expressing HOXB5 by itself not only increases expression of the regulatory protein, but also increases the number of endothelial cells that will form from the precursors. "We're especially excited about the possibility that we can use this trans...Popular Science announces second annual 'Brilliant 10:' the country's top young scientists
...ronting a thorny problem: which shapes can be made simply by folding a piece of paper, as many times as you like, then snipping off a corner and unfolding it. He found the answer and helped launch computational origami, a hybrid discipline--part computer science, part mathematics--that explores complex geom...