Researchers decipher fundamental signal for maleness
...ed by radiation or chemicals, can lead to bisexual orientation in male flies. "The doublesex gene is postulated to control a hypothetical courtship command center in the fruit fly's brain, but whether or how this occurs at the molecular level is unknown," Weiss said. "The same kind of gene has been found in ev...A molecular motor's key role in cell birth
...nyone could draw a molecular mechanism for spindle orientation in yeast. The big question is: Does this also hap...mplete set of chromosomes. Mitosis requires proper orientation of the spindle toward the new, developing cell; otherwise the duplicated chromosomes remain in the m...... point of view and kept the labs with a biological orientation in touch with the sequencing labs. As data was obtained it was pooled and made available through the Internet in a useful form. The exchange of information resulted in consistent standards and nomenclature. Preuss, Eliot M. Meyerowitz of the Californ...Why some people just can't seem to pay attention
...t that discloses different phases of detection and orientation to a stimulus change, such as a pitch change in a monotonously repeating sound. Researchers believe that MMN is generated by a mismatch between a deviant sound (such as a higher-pitch) and the memory trace of the preceding sound that has been stored...Research determines how plants tell which way is up
...sential for plants to "perceive" a change in their orientation relative to gravity, and to respond by growing in the proper direction. Boss and three colleagues Dr. Imara Perera and Dr. Ingo Heilmann, NC State botany research associates, and Dr. Peter B. Kaufman, professor emeritus of plant physiology and plan...... annual Society of Toxicology meeting providing an orientation on environmental justice and health disparities issues, an overview of existing research, communication and research efforts, and an opportunity for in-depth discussion of issues. The session will be in room 135 of the Moscone Convention Center. Cas......day. When the surface structure and river-drainage orientation of the Carolinas are viewed in relationship to the layers of marine sediments exposed along the Atlantic coastal plain, a simple explanation of lowered sea level doesn't account for the observed height of the mountains. Many examples of structural de...American Society for Microbiology selects Mass Media Fellows
...ellows meet in Washington, D.C. to take part in an orientation session consisting of basic journalism workshops and visits to various newsrooms. Prospective fellows must demonstrate a commitment to public understanding of science and technology and should be working on or have obtained an advanced degree in mic...Researchers find 'north pole' of the molecular world
...ecular markers to the protein and monitoring their orientation and position, we should be able to better understa...olecule alignment, or even data storage, since the orientation of the dipole moment could stand for a one or zero....Walking proteins need to rock and roll, new study finds
...rner and his co-workers were able to determine the orientation of the head in relation to a microtubule in the pr...points out. "In the future, we hope to observe the orientation of kinesin as it takes multiple steps. That's one of the virtues of single-molecule measurements: Yo......hat weakly anchor liquid crystal in a well-defined orientation along the film's surface. When these receptors are...tors. This displaces the liquid crystal into a new orientation that is controlled by the underlying surface texture, and the new orientation is visible to the nake...Student discovers well-preserved embryo in dinosaur egg
...s confirmed the embryo's presence and revealed the orientation of its bones. Lamb then began manually removing them, using a buffered acid bath to dissolve the surrounding rock. Lamb believes the embryo may yield new information about, among other things, dinosaurs' diets. "If you've got organic material presen...Mutant proteins may be key to defeat chemical warfare
...The binding pockets are likely responsible for the orientation of the compounds within the active site of the enzyme," Raushel says. "So we have been attempting to change the sizes and shapes of the binding pockets and look at changes in the enzyme selectivity." Raushel and his team changed some of the building ...A genetic basis for behavior in infancy
...on-clinical, low-risk population are poor neonatal orientation and emotional regulation. In the authors previous report the authors suggested that a certain structural variant of the dopamine D4 receptor (DRD4) gene might impose a risk on development of disorganized attachment. The dopamine D4 receptor gene has ...Nexia and US Army spin the worlds first man-made spider silk performance fibers
...arther. The fibers also had good water stability, orientation and were uniform in diameter. "We believe the Science paper will be seen as a landmark article in spinning water stable fibers with good mechanical properties using an aqueous process," said Jean Herbert, Leader, Materials Science Team at SBCCOMs Nat...... that uses high-frequency echolocation for general orientation and tunes in to low-frequency, prey-generated nois...pallid bat uses echolocation primarily for general orientation and relies on passive listening to detect and locate prey. The organization of its auditory cortex ...Rice, first crop plant to be sequenced, may help fight world hunger, Science authors say
... these cereals--or, conservation of gene order and orientation between comparable chromosomes. The considerable overlap in genomes may make it easier to search for genes of interest, and to identify key regulatory regions across the genomes of these important crops. COMPARING RICE AND ARABIDOPSIS Goffs compari...April GEOLOGY and GSA TODAY media highlights
...l tentative conclusions. The authors interpret the orientation of the high-angle spreading ridges to be related to the asymmetric opening of the backarc basin around a hinge, where they form close to the hinge. Relocation of these spreading ridges is most likely related to subduction of a buoyant topographic fea...Scientists document water molecule movement across cell walls
... University of California at San Francisco say the orientation of water molecules moving through aquaporins assures that only water, not ions such as protons, permeates between cells. If the latter occurs, energy stored as electrical potential between the inside and outside of the cell wall is lost. Aquaporins,...Gene plays key evolutionary role in food-gathering behaviors
...es by going through a series of gradually widening orientation flights. During this time there are changes in brain chemistry and structure, endocrine activity and gene expression. Robinson and colleagues theorized that increased gene activity was necessary to drive behavioral change. Other genes had been imp...