Light guides flight of migratory birds
...ckwise or counterclockwise) deflection of homeward orientation when released at a distant site. It turned out, however, that the panels influenced the distribution of polarized light patterns at sunset and sunrise, and it was the altered polarization patterns, rather than olfactory cues, that produced the direct...Stimulation of the semicircular canals can artificially control human walking and balance
... are part of the vestibular system that assists in orientation and balance. The researchers found that artificial stimulation of semiciruclar canal nerves afforded "remote control" that was accurate enough to keep subjects on pathways and avoiding obstacles while walking blindfolded through botanical gardens. Th......sal horn. We hypothesize that the changes in horn orientation and epoccipital shape functioned to allow visual identity of juveniles, and signaled their attainment of sexual maturity. Contact: Mr. MB Goodwin University of California 001 510-643-9745 mark@berkeley.edu Rapid adaptation of insect herbi...News tips from the Journal of Neuroscience
...BT) task, in which they imagined themselves in the orientation of a schematically presented body, and a mirror (MIR) task in which subjects imagined that the figure was their reflection. The tasks differed subtly in that the OBT task required a disembodied-self location, whereas the MIR task retained their norma...Male praying mantids prefer not to be victims of sexual cannibalism
...males are more likely to cannibalize and a head-on orientation makes it easier for her to attack the male with he...o and Brown thus varied female hunger and physical orientation in order to assess how male mantids respond to variation in the risk of cannibalism. They found that...Structure determined for p53 tumor suppressor protein as bound to DNA for anti-cancer activity
... the dimer, the two cores have to be in the proper orientation to bind DNA. "So we decided that we needed to somehow lock the protein into a conformation that's compatible with the dimer binding to DNA. We used a chemical trick in which we modified a DNA base to allow it to attach directly to a part of the pro...Beyond lipids: understanding the mechanics of atherosclerosis
...blood flowing through vessels, also influences the orientation of stress fibers in endothelial cells. A laminar flow of blood prompts stress fibers to orient in the healthy direction, while disturbed and low blood flows caused stress fibers to form in an unhealthy, random orientation. Chien's group is now workin...'Big Brother' eyes encourage honesty, study shows
...yes. The eye pictures varied in the sex and head orientation but were all chosen so that the eyes were looking directly at the observer. Each week the research team recorded the total amount of money collected and the volume of milk consumed as this was considered to be the best index available of total drink ...Biological motors sort molecules one by one on a chip
...ernal electrical field is largely dependent on the orientation of the cylinder-shaped molecules. This was the first time that this orientation-dependency of the electrophoretic mobility was observed. In an accompanying Perspective article in Science, Professor Hess of the University of Florida wrote that the D...No place like home: Ant navigation skills used in robot navigation
...ntegrator at a significant position could make the orientation of the robot even more reliable", says Dr Knaden who will speak on Tuesday 4th April at the Society for Experimental Biology's Main Annual Meeting in Canterbury, Kent [session A4] Ants that return from foraging journeys can use landmarks to find thei...Drs. Hrabowski, Summers share success strategies for producing minority scientists, engineers
...fering merit-based financial support; providing an orientation program for freshman; recruitment of active research faculty to work with the students; and involvement of students in scientific research projects early in their undergraduate careers....52 minority scientists receive APS/NIDDK travel fellowships totaling $90,000
...and the fellows meet other minority students at an orientation and reception for current and past travel fellows. APS also invites fellows to career workshops, sessions on special skills development, and other special sessions during the conference. Past fellows have praised the program, saying: "I received adv...Airborne and satellite radars record Frascati grape harvest
...ted a 24.5 square kilometre area of interest with orientation fitting the orbit and radar look direction of ERS-2 at that time. For their part in the campaign, DLR operated their Experimental Synthetic Aperture Radar (E-SAR), flown on their customised Dornier-228 flown out of nearby Ciampino Airport. The E-SAR...New insights into neural tube defects
... within neural tissues in fruit flies controls the orientation and migration of cells. Working with colleagues Brian Ciruna, Diana Lee, and Alexander Schier, who were at New York University when the research was conducted, and Andreas Jenny of Mount Sinai, Dr. Mlodzik's and Dr. Schier's laboratories have now fo...Face perception is modulated by sexual orientation
...t a phase in visual processing during which sexual orientation modulates how we perceive individual faces. The fi...nder of the individual who is viewed or the sexual orientation of the viewer. The researchers found that, consistent with their hypothesis, the gender of a viewed ...USC researchers track down the stem cells that create feathers
... colleagues found, to their surprise, was that the orientation of the ring of feather stem cells is related to the type of feather being generated: the stem cell ring is horizontally placed in radially symmetric downy feathers, but is tilted in bilaterally symmetric feathers, with the lower end of the ring on th...'Computer-chemistry' yields new insight into a puzzle of cell division
...oration described how they discovered the probable orientation required for a Cdc25B phosphatase enzyme to "dock" with and activate a cyclin-dependent kinase protein complex that also functions as an enzyme, known as Cdk2-pTpY--CycA. The work was funded by the National Institutes of Health. Detailed study of suc...Figuring out the ups and downsand sidewaysof neural development
...ure called the neuroepithelium. Nevertheless, such orientation is critical, and understanding its machinery could... types of cell division seem to be governed by the orientation of the tiny bundles of fiber-like microtubules called spindles inside the dividing cell--whether the...Flipped genetic sequences illuminate human evolution and disease
...at chunks of similar DNA that have been flipped in orientation and reinserted into chromosomes are hundreds of times more common in primates than previously thought. These large structural changes in the genome, called inversions, may account for much of the evolutionary difference between the two species. They ...Amazing nanotech in Boston: Weighing DNA, digital heat flow, electromechanical butterfly images
...out the electromechanical properties and molecular orientation of biological tissue. In recent work, the researchers even found unexpected piezoelectric properties in butterfly wings which enabled them to yield molecular-level images of wing structures. ** For more information and images, a lay-language paper b...