Christmas Bird Count: Another Holiday Tradition
...nbs.gov/bbs/cbc.html And when others are stuck with a mere partridge in a pear tree, you can sing about significant increases among eastern bluebirds, American crows, and American goldfinches and declines of bobwhites, loggerhead shrikes, field sparrows, and mockingbirds. Come Christmas ...Researchers Corral Millions Of Microscopic Membranes
... washing it off and counting the cells that remain stuck to different patches. Not only could this method identify and separate different kinds of cells like current methods, but it potentially could measure how well the cells are functioning, Groves suggested. In a similar fashion, the technique might be ...Everyday Technology Underlies First DNA Computer Logic Gates
...egos might be fastened end-to-end by a third Lego stuck on top. An enzyme called DNA ligase seals the gap between the ends of the two input strands, yielding a single new strand. Using regular gel electrophoresis, the length of this new strand can be precisely measured, providing the DNA comp...Hurdle In Ulcer Vaccine Development Cleared
...min,creating a structure that looked like a potato stuck with toothpicks. Then theyadded a Y-shaped "toothp...the Y toothpick off the potato, leaving part of it stuck to thebacterium. In this way, they added a biotin label to the protein that had boundto Leb. ...Needlestick Injuries Common In Female Veterinarians, Study Finds
...arians, asking how many timeseach had accidentally stuck themselves with a needle. Respondents were asked what kinds of substances were injected and anyresulting side effects. Vaccines were the most commonly injected substances,accounting for about half of the injections, followed by anesthetics, eu...Researchers Discover Ways The Ulcer/Cancer Bug Can Trigger Disease
...ls can't reveal how you would respond if H. pylori stuck to yourstomach lining," Falk says. In 1993, Falk and another Swedish scientist at Washington University,Thomas Born, D.D.S., Ph.D., discovered that H. pylori can attach to a moleculecalled Lewis b (Leb) on stomach lining cells. This mo...Tinkertoy Robot Shows How Humans Walk
...n constructed the Tinkertoy device as follows: He stuck two green rod legs, bottomed with rounded yellow feet, into a red crossbar hip, along with several orange washers and green hinges. To stabilize the toy, he added low-lying red and yellow outriggers weighed down with steel nuts off each foot to lowe...New Look At How Cells Move Could Shed Light On Tumor Growth
...ells, cells can either move apart easily or become stuck to each other. Under time-lapse videomicroscopy, the researchers were able to see howcell movement totally shut down when a specific receptor was expressed. "One of the ways in which this is important is when you think oftumor cell biology," Hutten...Jefferson Scientists Devise Way To Treat Animals Chronically Infected With Hepatitis B
...rus life cycle. The virus still makes DNA,but gets stuck in the cell. "We see a tremendous drop in envelope virus, and the current virus thatremains, we believe, would be non-infectious. It still requires more study." According to Dr. Block, recently, several drugs such asinterferon-alpha,...Molecular Mission Unveils New Genetic Link To Common Birth Defect
...currently limited by the fact that researchers are stuck in a virtual"Catch-22:" they must work backwards from an outwardly expressed trait or defect(called a phenotype) to its root genetic cause. But in doing so, only theearliest activity of a specific developmental gene can be identified, sincedeleting i...Molecular Mechanism For Evolution Described
...lar mechanism that explains howorganisms that have stuck to the same morphology for eons can evolve newtraits that help them adapt to changing conditions," says Susan Lindquist,Ph.D., professor of molecular genetics & cell biology at the Universityof Chicago, Howard Hughes Investigator and lead author ...Staring And Squirming Help Babies Explore
...asses. Suddenly, information which has always been stuck inside of textbooks has comealive as I have the opportunity to participate first hand in the process offinding new information. Participating in this process gives me a chance toexplore uncharted phenomena and seek novel information. That's an exci...Champagne Gets Its Fizz From Tiny Acid Burns
...olunteers to rate the tingling sensation afterthey stuck their tongues into carbonated water for up to 15 seconds. The scalethey used ranged from zero for no sensation, to 10 for the irritation caused byhot peppers. Later, Carstens coated half the tongue of each volunteer withacetazolamide before asking th...Fat In Spite Of Hard Farm Work - Tracking Down Obesity
...eped into the pots of the Amish and foundthat they stuck to a traditional menu which includes eggs, meat, pasta, fattysauces and cake on a daily basis. Given the hard farm work this diet should notnecessarily lead to obesity. But the Amish become obese as frequently as theGermans who on average have much l...X-Ray Concentrator Will Expand Window On High-Energy Universe
...est speck of contamination is like having a pebble stuck inside astraw. If the glass tubes are bent ever so gently, the X-rays graze the surface at justless than the critical angle. Imagine a race car bouncing back and forth betweenthe guard rails as it barrels down the track. That's pretty much what X-ray...Protein Adultery Revealed!: Mechanism Of Protein Folding Captured In Computer Simulation
... ofintermediate folding steps, results in proteins stuck to each other in inertmasses. It is easy to see why proteins might grab at each other. Proteins are not "bad"in character but consider how they were raised: as a series of simple aminoacids. Suppose, in a pile of proteins, an amino acid from one prot......ents crossed the endothelial junctions only to get stuck just beyondthem. The authors inferred the existence of a secondary blood-brain barrier atthe level of the basement membrane. The basement membrane is a protein layersurrounding capillaries. Edward A. Neuwelt, M.D., pro...Genetic Research Boosts Understanding Of Iron's Path Through Body, Diseases Of Iron Metabolism
...p andeffective, most patients hate having a needle stuck in their arms every month,Andrews says. Ultimately, knowing the molecular biology underlying this andother iron diseases may lead to more modern treatments This study was funded in part by the NIH. First author Joanne Levy, OuJin, and Yuko Fu......ell cycle and repair heart muscle, theprocess gets stuck in G2 and fails to enter M phase. This is the transition thathCdc5 appears to control. By manipulating HCdc5, Bernstein and his colleagueshope to get heart cells to complete their cycle. "However, there is a lot more to learn about how the hCdc5 prot...Details of promising cancer therapy shows for the first time
...single kink in the Ras proteinstructure, leaves it stuck in the "on" position. Out of control growth thenensues, causing cancer. Since the gene's discovery in the early 1990s, the ras mutation has been linkedto 90 percent of pancreatic cancers, 50 percent of colon cancers, and 30 percentof lung cancers. ...