Tag: "material" at biology news
Second Breast Cancer Gene Located
...g of a pancreatic cancer with a deletionof genetic material
in the precise region of BRCA2 also aided in localizingthe region where the gene resides, Futreal said. The inherited mutations appear to damage the cell's ability to avoid theabnormal growth that characterizes cancer, Futreal said. ...
Dating A Caveman
...ds. The increased sensitivity also means that less material
is required for analysis. "We are able to select ...orizon for the method, allowing scientists to date material
as far back as 600,000 years. In addition to using a more sensitive dating method, Ku believes he ha...
Heat-loving Microbe Repairs Its DNA With Light
...ndother geothermal environments. When its genetic material
(DNA) is artificially damaged byultraviolet (UV) light, S. acidocaldarius has been found to repair the damage. However, Dennis Grogan, assistant professor ofbiological sciences at the University of Cincinnati, found thatthe repair process requires ...
Duke Researchers Show "Editing" Can Fix Faulty Genes In New Approach To Gene Therapy
...passive carrier of geneticinformation, the genetic material
known as RNA is an active participantin editing genetic messages before they are translated into protein. The editing approach to gene therapy ignores the defectivegenes, which are encoded in DNA and stored in the chromosomes, in favorof focusing on...
Researchers Use Hydrated Lime To Reduce Toxic Selenium Emissions
...ntageto the technology is the abundance of the raw material
limestone,especially in the Midwest, Fan said. The study was co-authored by Rajeev Agnihotri, a doctoral studentin chemical engineering, and Abhijit Ghosh-Dastidar, a formerpost-doctoral researcher, both from OhioState. The work, whichwas published i...
A Genetic Skeleton Key
...a, genes are written into theorganism's hereditary material
ascontinuous strings of information,recording gene...DNA languageor human-DNA language,from intervening material
that wasobviously advertising, the problemwould be far less difficult.Perversely, the "advertising" ...
Six-Year Drilling Project to Uncover One Million Years of Earth History
...at Hawaii exists because of a fountain of hot rock material
coming from 3,000 kilometers deep in the Earth." The project will produce a continuous 14,500-foot sequence of samples from a bore hole dug into the inactive volcano Mauna Kea near Hilo on the island of Hawaii, to better understand a million ...
North America Hit Hard By Asteroid Strike In Yucatan 65 Million Years Ago
... a two-mile-deep layer of vaporized rock and other material
sheared offthe Yucatan. The killing zone of matter... corked-in Venusian vapors,which show that gaseous material
is propelled in waves downrange after anobject strikes a planetary surface at an oblique angle. Sch...
Scientists Identify Retrovirus-Like Components In Corn Genome
...t genes make up only a tiny percent of the genetic material
in a cell, but the question remained, "What are al...ledge about the organization and makeup of genetic material
in plants. The findings offer new insights into why some plants have larger genomes than others, and...
Environmental Impact Statements Need To Be Made Easier To Decipher
...sequentstudy. "When citizens can't understand the material
presented in an EIS [environmentalimpact statement... documents that had been edited to presentthe same material
more clearly and with computer-generated simulated photosthat gave "before and after" views of propo...
New Sensor Provides First Instant Test For Toxic E. coli Organism
... The 0157:H7 strain thrives in animal fecal material
which is why it oftenshows up in meat. Pasteurization of milk and juices -- a simple treatment withheat -- can kill the organism as can thorough cooking of meats. The bacteria strainis a potent health threat. Undoubtedly, numerous unreported outbr...
The CIA Would Like To Know What Scientists Are Seeing Over The Rainbow
...re genome at once, and clearly distinguish genetic material
belonging to one chromosome from that of another,"...tracking the multiplication or exchange of genetic material
is often impossible with conventional black-and-white banding. Chromosome banding was first develo...
Researchers Corral Millions Of Microscopic Membranes
...ntists dropped tiny bags, or vesicles, of membrane material
extracted from chicken eggs into the corrals, which were submerged in saline water. They determined that the vesicles fused to form uniform membrane patches that completely covered the squares but stopped at the borders. These membranes are very thin...
Fund Aims To Repay Developing Nations For Valuable Genes
...ly redress perceived inequities related to genetic material
propertyrights. For decades scientists have searched the jungles and forests of developingcountries in hopes of finding plants and animals that might yield new informationfor basic research and have future commercial value. In many cases thesehave b...
Erodible plastic microspheres could be effective oral drug delivery system
...he anticoagulant dicumarol, plasmidDNA, which is a material
used in gene therapy, and insulin, used to treatdiabetes. The spheres are engineered from biodegradable plastics, which become moreadhesive to body tissues as the plastics degrade in water. The spheres range insize from 0.1 to 5 micrometers. For pu...
Corn Byproduct Shows Promise As Biodegradable Packaging Material
...be molded into plates, sandwich containers,sealing material
and trays. "There are growing environmental demands, especially in places suchas Europe and Japan, for solving a lack of landfill space," said foodscientist Graciela Wild Padua. "Part of the problem in using zein beforenow has been its price. If you...
Supelco Licenses ORNL Solid Sorbent Air Sampling Material
...strial effluents can be complex and costly. A new material
developed by researchers at the Department of Energy's (DOE) Oak Ridge National Laboratory (ORNL) may find use as a cost-effective way of detecting and measuring such compounds. The product, Sol-Gel Derived Sorbents for Analysis of Organic Contamina...
Purdue-Made Soil Benefits The Environment
...makes a very effective soil additive. "Mixing this material
with poor-quality soil -- even sand and gravel -- ...existing soil and seeded. "We've incorporated this material
into coal slurry ponds at the mines to determine if we can reclaim the acid-saturated land, which wo...
How Dry Is The Tropical Free Troposphere? Implications For Global Warming Theory
...n this region, which are related to how much cloud material
fallsout of rainfall systems. Dr. Spencer, NASA's Senior Scientist for Climate Change, will be discussingthese latest published results, as well as the state of the global warmingdebate, during the July 15, 1997 forum on The Implications of Climate...
EPA's Plant-Pesticide Policy Threatens To Stifle Development Of Pesticide Alternatives And International Trade
... Federal Register, "Labeling includes both written material
accompanying thepesticide and labels on or attached to the pesticide, its container, orwrapper," such as a sack of seeds. The EPA said during the workshop that the public's trust must be earnedthrough policies that ensure no more than a ne...
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