Tag: "level" at biology news

Key to Triplet Repeat Brain Diseases Open Door For New Way To Understand, Treat Genetic Diseases"

...l, not just inbrain cells, there has to be another level of complexity that we don't understand." "This is at least an initial insight into the molecular genesis ofthese diseases," Burke said. "It is a novel interaction that mayexplain the increase in severity with increasing repeat size." The researche...

Cornell Researchers Precisely Date Wood From Ancient Tomb In Turkey

...ton, one of the Nature article's coauthors. "That level of precision, based on the fact that trees put on a single growth ring per year, is unique." The researchers supplemented their dendrochronology work with radiocarbon "wiggle-matching," a process in which the radiocarbon profiles of the timbers are s...

Southern Pine Beetle Reaching Outbreak Levels In North Florida

...pine twice what it was30 years ago and at a higher level than in 1949, when Florida's firstforest inventory was conducted, Foltz and Meeker said. That means plenty offood for the beetle, which is partial to the taste of loblolly, and morefrequent, widespread and destructive outbreaks for forest managers. "...

Water Recycling Project Tested in Turkey Plant

...he conducted tests of the system to determine what level ofozone usage would be most efficient. The ozone generator used in the unitcreates ozone at just the rate needed. The process immediately uses up theozone so that there is only about 3 grams in existence at any given moment. Current Food and Drug Ad...

Automobiles Gain High Technology Noses To Sniff Out Breaches In Air Pollution Laws In Europe Wide Research Project

...n high technology sensors to help monitor both the level of air pollution generated by vehicles and to restrict the amount of external air pollution (particularly CO entering drivers cabins in our increasingly polluted cities). The increasing levels of air pollution in our cities have led both politici...

Hawaiian Whales Show 'No Overt Response' To Sounds Of ATOC Simulation

... for ATOC, the Hawaii simulation speaker's decibel level was "ramped up" over five minutes to allow animals a chance to move away. But if any Hawaiian whales responded to the sound, their reactions were not noted by shore-based observers in the field. The observers charted swimming courses of whale...

Nitric Oxide May Hold Key To First Treatment For Deadly Form Of Malaria, Duke Scientists Report

... that can control basic life processes down to the level of thegene, the master plan of a cell. The study findings, published in the Sept. 6 issue of the journal Cell,describes an entirely new cellular signaling mechanism -- the attachmentof nitric oxide (NO) to a key portion of a protein called a...

Low-Protein Diet May Reverse Kidney Disease

...ally cured, while only one patient's blood-protein level worsened, " says Walser. Hopkins researchers put 16 adults on a very low protein diet with essential amino acid or ketoacid supplements for 10 months. Essential amino acids are those amino acids -- building blocks of protein -- that the body can not ...

New Ultrasensitive Technique For Accurately Characterizing Biomolecules Is Developed By Cornell Chemists

... Just knowing the molecular weight at our accuracy level is a big help," said Fred W. McLafferty, Cornell professor emeritus of chemistry who led the work. Their accuracy provides less than 0.01 percent error. "With this, you can also measure masses of individual pieces of a molecule for further characte...

Nitric Oxide Found To Control Cells By Turning On Genes; Suggests New Role In Health And Disease

... that can control basic life processes down to the level of thegene, the master plan of a cell. The study findings, published in the Sept. 6 issue of the journal Cell,describes an entirely new cellular signaling mechanism -- the attachmentof nitric oxide (NO) to a key portion of a protein called a...

Human-Like Ability, Categorical Perception, Found In Insects

...abituation test determines precisely what stimulus level is "different enough" to get a subject's attention when it has grown accustomed to (or habituated to ) repeated stimuli. Babies respond less and less when they hear "pa" repeated over and over; they pay attention again when the experimenter throws ...

PET Project Helps Reduce Pollution Threat From Heavy Metals

... acidic rainwater and actually raisesthe pH to the level where the sand layer works best. Sansalone has spent the last year testing a laboratory versionof the PET system. Experimental results reported at the SeventhInternational Conference on Urban Stormwater Drainage in Germanythis month indicate that the...

Component In Soy Products May Be Substitute For Estrogen Treatment

...other had products with 92 milligrams. The higher level of isoflavones produced significant improvements in thebone densities in the women's lumbar spines -- a key location for assessingosteoporosis, a common disorder of aging women that is marked by a progressiveloss of bone tissue because of a loss of b...

End Of World Population Growth Projected For 21st Century

...h fertility levels. NorthAfrica's 1995 population level of 162 million is likely to increase to 228million by 2010 and to 439 million by 2050. The Middle East's 1995 population of151 million is likely to grow to 234 million by 2010 and to 517 million by 2050. Projections for North America reflect a slo...

Six-Year Drilling Project to Uncover One Million Years of Earth History

...nneled to depths of more than 1,000 feet below sea level by changes in rock porosity, and cold, deep seawater can circulate long distances through porous rocks present at depths of 3,000 feet beneath the surface of the island....

Antarctic Science Season Gears Up With Searches for Meteorites, Neutrinos, and New Life Forms

... Rift If West Antarctica's ice melted, sea level would rise worldwide by six meters. West Antarctica's swift ice streams lie above a geologic rift -- an area where the earth's crust is pulling apart, possibly with profound effects on the ice streams' behavior, and hence on the ice sheet's overall ...

Study Examines How Mechanisms Evolve To Regulate Bee Development

...scientists have a general understanding of how the level of juvenilehormone affects the well-known division... inthe drones, researchers found. When the hormone level was elevated, dronesbegan to seek virgin queens earlier than same-aged drones whose levels werenot a...

Impact of Meteorites, Drop in Sea Level Caused Mass Extinctions 65 Million Years Ago

...idence that other factors, including a drop in sea level prior to the assault by the massive asteroid or co...d regardless of the meteorite or the change in sea level -- what scientists call "background extinction." "Some scientists thought the extinctions we...

Environmental Impact Statements Need To Be Made Easier To Decipher

...ns itself to lawsuits." To test the understanding level of an EIS -- a document supposedly writtenat a 10th-grade reading level -- U. of I. researchers traveled to Joliet,Ill., to see how well 113 high school students understood...

Disease Resistance Mechanism Identified in Plants

...there is a lock-and-key mechanism at the molecular level involved with the plant's ability to recognize and mount a resistance response to a pathogen," adds Steven Scofield, a research geneticist at the University of California at Davis Center for Engineering Plants for Resistance Against Pathogens, an NSF...

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