Mutate Or Die: New Polymerase Gives Desperate Yeast An Option
... to copy damaged DNA or which help repair it, zeta lets a cell replicate damaged DNA, giving the cell a chance atlife at the cost of a higher mutation rate for the organism. "Replicating past the damaged site is the leastfavored mechanism of dealing with DNA damage, but from the cell's perspective, ...Moving DNA Molecules With Magnetic Tweezers
...t ofelectricity flowing to each set of coils. That lets him move amagnetic object in any direction. In his Hopkins lab, Wirtz hasreconstructed his device to move molecules back and forth beneatha microscope in one dimension. He plans to add more magnets and ajoystick to recreate the three-dimensional move...Hot 'Lanta: NASA, School Kids Team To Study How Trees Help Cities Keep Their Cool
...n the city. ATLAS lets scientists see how different objects reflect or absorb and emit heat. It's related to the greenhouse effect thatmade life possible on Earth: incoming sunlight passes through the atmosphere and is absorbed at the ground. Thenow-warm objects reradiate ...Oaks' Defenses Help Gypsy Moth Caterpillar Fend Off Virus
...nnins.The oak trees' defense -- tannin -- actually lets the gypsy moth caterpillarsurvive. Nuclear Polyhedrosis virus, LdNPV, is commonly called wilt diseasebecause the caterpillar turns into a sack of virus and slumps over. Thisnaturally occurring virus is acquired when caterpillars eat the dorm......ng. Still, as Adams noted, "We need a tool that lets engineers compare radiation doses inside the spacecraft they are designing." Learning how to manufacture materials also is lagging, said Dr. John Wilson of NASA's Langley Research Center. He soon will start radiation tests using simulated Mars soi...Dismantling Dangerous Genetic Codes With A Faster, More Flexible RNA Mimic
...what really works best," he says. "The assay also lets us study how the individual catalysts work to help usavoid being caught by any chemical surprises when we use them in a biologicalsystem. It's becoming a very popular assay." Bashkin says the antisense community is large and growing, and his concept...Hopkins Researchers Urge Regular Chlamydia Testing For All Sexually Active Teenage Women
...r chlamydia without a pelvic exam,"he says. "Andit lets us detect more infections even in women with silent--orasymptomatic--infections. Earlydetection can mean early treatment, which reduces complications and furtherspread of theinfection." The team found the organism in 771 females (24.1 percent) d...Envisioning Ions With INEEL-Developed Simulation
...ulate, findsa comfortable viewing perspective, and lets the ions fly. The simulated ions, whose "flight" paths the user can trace mimic real ions inside a massspectrometer. Mystery ions, whether in cosmic dust, environmental contaminantsamples, or a drug-user's bodily fluids, can be identified by mass sp...Scientists Hope To Learn How Long Trees Can Absorb High Levels Of CO2
...ltimately store. "Thisis the first experiment that lets us address this question in the real world.This is really a huge advance."......d. "The great brilliance of the APSX-rays not only lets us probe the atomic structure of solid surfaces, butactually allows us to examine the complex changes that occur at the surface of acatalyst during the course of a chemical reaction." In addition to its research mission, the institute will train scie...Technology Reduces Reliance On Fungicides For Grape Growers
...th standard spray programs, this forecasting model lets growersapply two to three fewer fungicide applications during the growing season withequal or better disease control," says Gubler. "That means better grapes forwine production and potentially fewer fungicide applications which is easier onthe enviro...Synthetic Lock Binds Some Molecules, Excludes Others
... bind to the metal. The chimney-shaped pocket only lets instraight, narrow molecules, whilethe round hole lets in fat or bent-shaped molecules." As reported in the Jan. 12 issue of the Journal of the American Ch...Center For Future Health Aims To Bring High-Tech, Low-Cost Health Care To The Home
...trecognizes certain phrases and tones of voice and lets the speaker know, gentlyand unobtrusively, that his emotion level is rising, and suggests alternatephrases or actions. An array of sensors based on new types of materials under development at theUniversity. Such sensors might be used to detect tiny ...MTU researchers develop new software to help clean up contamination sites
... air-borne chemicals in apaint booth. The software lets environmental engineers determine the bestremediation method based on the two EPA-approved techniques: aeration, whichuses air to "scrub" away pollutants; and adsorption, in which a solid surface known as an adsorbent separates the pollutant from the...Factor for acquiring skin barrier function identified
...cell biology and HowardHughes Investigator. "This lets us test new therapies and genetic modificationsthat might restore barrier function as well as see what kinds of side effectsthese new treatments might have." In the August issue of Nature Genetics, Segre reports that mice lacking the geneKlf4 never a...Clemson's Baruch Forest Science Institute tracks forests' recovery from hurricane damage
...ood as hard as steel, so it keepsits head down and lets others take the brunt of the winds, Gresham said. Thecypress has a deciduous needle, so Hugo's first gusts of wind in September blewoff the needles and then had less resistance to cause further damage. The longleaf pine is generally not as tall as ...Changing children's diets today could reduce bone problems 70 years from now
...nd body composition produces real-time images that lets fascinated children seetheir own bones on a screen. Another instrument, a QCT (quantitativecomputerized tomography) scanner, measures two distinct layers of growing bone.Both are considered safe for children. In contrast to the high-tech measuring to...Study finds reliability problems with nerve test for carpal tunnel syndrome
...g time, known as the latency, to be compared. This lets doctors spot the existence and the extent of nerve damage in different locations. In the U-M study, the results recorded by each examiner for each patient were compared, as were each examiner's results from both their exams of the workers. In both ca...Deadly to cattle and humans, prions may help other organisms survive, researchers find
...l change. "Basically, a prion-based inheritance lets an organism continuously monitor its environment and in a manner reminiscent of Lemarkian inheritance, respond to changes in the environment and pass these changes on to its progeny," said Jonathan Weissman, assistant professor of cellular and molecu...Light receptor may be key in how animals use Earth's magnetic field
...earchers who are seeking the magnetic compass that lets migratory birds and many other creatures find home...e may be the site of a neurochemical reaction that lets birds, for example, process visual clues from the magnetic field and stay on course. "Animals as div...