St. Jude study shows genes play an unexpected role in their own activation
...e team showed that each gene that responds to CREB chooses which co-factors, or helper molecules, CREB uses to activate that gene. This finding adds an important piece to the puzzle of how cells use CREB to activate specific genes in response to cAMP signals. It also suggests that the current model scient...Species thrive when sexual dimorphism broadens their niches
...e ability to mate, or when one sex, often females, chooses among members of the other sex. Differing reproductive demands can also fuel sexual dimorphism: Females of some species, for example, must have larger pelvises to allow the birth of large offspring. "Another explanation is that sexual differences a...Genome sequencing reveals key to viable ethanol production
... "This is the first revelation of how a bacterium chooses from its more than 100 enzymes to break down a particular biomass," says David H. Wu, professor in the Department of Chemical Engineering at the University of Rochester. "Once we know how a bacterium targets a particular type of biomass, we should be...Ossur repeats Popular Science 'Best of What's New' award
...iews thousands of new products and innovations and chooses only 100 winners for 10 different categories. Among the judging criteria are: the significance of the innovation; the quality of the design and the finished product; the originality of thought; and the ambition and scope of the project. The winners -...HIV exploits competition among T cells
...ut still deadly, strains. "Once the immune system chooses a winning set of T cells, it has a natural tendency to go with those cells when it's confronted by new strains of the same disease in the future," Deem said. "For HIV, which mutates rapidly, this is an Achilles' heel. We found a direct correlation be...Define 'precautionary principle' to avoid clashes over biotechnology under World Trade rules
...iotechnology panel, for example." "How a society chooses to manage the risks of biotechnology will be affected by such factors as confidence in the regulators, acceptance of new technologies, the need for the new benefits and general levels of awareness," says Dr. Zakri. He notes that several internation...Dan David Prize awarded to two leading American cancer researchers
... Each year the Dan David Prize International Board chooses one field within each time dimension. Following a ...rs and professionals, the International Board then chooses the laureates for each field. The past refers to fields that expand knowledge of former times. The p...Attention shoppers: Researchers find neurons that encode the value of different goods
...rocess of decision-making that occurs when someone chooses between different goods. "We have long known that different neurons in various parts of the brain respond to separate attributes, such as quantity, color, and taste. But when we make a choice, for example: between different foods, we combine all thes...Attractive birds more immune against bird flu
... the forehead spot as a health indicator. When she chooses males with a large forehead spots, she takes not only the healthiest males but also the ones with the best immune defence against future virus infections." The study also shows that the male collared flycatcher can change the size of the forehead spo...20 of world's top women scientists honored in Paris for groundbreaking research in life sciences
...ssion for consideration. Each national commission chooses two candidates, who are then judged by an international selection committee. Three recipients are named per region: Africa, Arab States, Asia/Pacific, Europe/North America and Latin America/Caribbean. The beneficiaries of the 2006 Fellowships can be...Ticks, flukes, and genomics: Emerging pathogens revealed
... transfers to a human, say, or horse, the bacteria chooses the protein variation needed to stay hidden from that particular host. "These genome sequences have revolutionized the types of experiments [scientists] can perform to understand these diseases," says microbiologist Yasuko Rikihisa of OSU's College o...Gene design program from Johns Hopkins simplifies, automates and speeds design of 'artificial' genes
...a particular amino acid. "GeneDesign automatically chooses the best codon to use depending on whether the gene is supposed to work in a human cell, a bacterium, or a yeast cell," Boeke said. "When you're working with hundreds of codons, that's a significant help." The program also simplifies the design of ge...Ossur's Power Knee wins Popular Science magazine's 2005 Best of What's New Award
...iews thousands of new products and innovations and chooses only 100 winners for 10 different categories. Among the judging criteria are: the significance of the innovation; the quality of the design and the finished product; the originality of thought; and the ambition and scope of the project. The winners ...Joint green chemistry meeting in Washington, D.C., features top experts on environment
...xperts, convened by the American Chemical Society, chooses the winners. A special outdoor event will be held June 23 from noon to 1 P.M. at McPherson Square Park in downtown Washington, D.C., to promote public awareness of the numerous environmentally friendly and sustainable technologies that improve e...Major losses projected for earthquake on little-known fault under Los Angeles
...lnerability of structures in the area. "If society chooses to invest in mitigation, many of these losses could be avoided," said Jordan. The research team, which also included Hope Seligson of ABS Consulting Inc. and Kenneth Campbell of EQECAT Inc.,arrived at its estimates by averaging losses predicted under...Baby songbirds and human infants learn sounds in similar ways
...pose that in a family setting, a young zebra finch chooses a strategy different from that of his siblings, perhaps to better track his own vocal development as he learns the song. Earlier studies of vocal learning in zebra finches have focused on single birds housed alone imitating a recorded song. "Nobody f...