Tag: "source" at biology news
Acid-resistant bug doesn't give in to alcohol either
...enzymes in spades, which could make the organism a source
for new enzyme products and new directions in protein chemistry. A. aceti has been used for millennia to make vinegar, at least since an indirect reference in the Old Testament Book of Numbers to "vinegar made from wine." But not until recently did ...
Isotron licenses ORNL cancer treatment technology
... & Technology Division reduced the diameter of the source
-- the wire that contains the radioisotope -- by m...e dimensions are much smaller, the strength of the source
is significantly higher. This makes it possible to reach and treat tumors that previously could be t...
Scientists first to grow common cause of food poisoning in the lab
...ab. In humans, noroviruses are a highly contagious source
of diarrhea, vomiting and other stomach upset that made headlines two years ago after a series of repeated outbreaks on cruise ships. These viruses are a major cause of human disease worldwide. Researchers showed that the mouse norovirus MNV-1 could...
Differences in gene usage dramatically change bacteria's 'lifestyles'
...ences in gene content made Salmonella a persistent source
of illness. He identified several areas in the bacteria's DNA known as "pathogenicity islands" -- clusters of genes unique to Salmonella that help it cause illness. When complete gene maps for both bacteria became available in recent years, his inter...
New study by UGA researcher shows that Salmonella uses hydrogen as an energy source
...but remains at substantial levels and is an energy source
for pathogenic bacteria. This knowledge that human...ed, Salmonella use molecular hydrogen as an energy source
to grow and cause disease. It should be noted that the team studied a type of Salmonella enter...
Study in Royal Society journal on possible genetic factors in social responsiblity
...g that these deep-layer neuron networks may be the source
of neocortical theta waves. Contact: Dr Julian Budd, Dept of Informatics, Sussex University, BRIGHTON, BN1 9QH A parasite reveals cryptic phylogeographic history of its host by Dr CM Nieberding, Dr S Morand, Dr R Libois and Dr JR Michaux Our stud...
Save up your energy reserves for a longer life!
...tode worms. ATP is routinely used by the body as a source
of energy and generates AMP as a final product. Apfeld's group focused on an enzyme, called AMP-1, that is specifically activated by high levels of AMP and results in a cascade of reactions that work to conserve energy stores. Using an array of gene...
New system reduces risk of burns during interventional X-rays
... minimize the chance for burns by moving the X-ray source
instead of keeping the intensity on one spot," explained Darold Wobschall, Ph.D., UB professor emeritus of electrical engineering and president of Esensors. "The problem is that the physician is concentrating on the surgery and with X-rays coming in,...
Science to restore the nation's ecosystems
...of substantial science-policy debate. The dominant source
of mercury to most aquatic ecosystems is atmospheric deposition, and as a result, there are presently proposed regulations in the US and elsewhere to reduce mercury emissions. In the Everglades, deposition from the atmosphere is only one of the facto...
Free radicals and fertilization: Study reveals egg protection secret
... missing peroxide-producing gene could explain one source
of infertility. Wessel said their finding also sheds light on the contributions of free radicals to reproductive biology. Typically, free radicals damage cells. But Wessel said these molecules can also be helpful, killing germs, reducing high blood p...
Study urges caution in contaminant source tracking
... among the first to test the accuracy of microbial source
tracking methods against samples of known origin, ...ates." Scientists compared the accuracy of several source
tracking tools in classifying E. coli strains to various sources (humans, dogs, geese, deer, horses,...
INEEL honors five scientists as Laboratory Fellows
...perature Gas Reactor Project defining radiological source
term for the environmental impact statement, developing the irradiation and accident performance testing needed to qualify the fuel and tritium targets. Since 1992, he has been the group leader of the Fusion Safety Program where he has ...
Stanford biologist working to restore native forests to Hawaii
...e a damaged ecosystem but also provide a renewable source
of profit. The lessons learned here-about quantifying the benefits supplied by nature and creating incentives to protect them-are likely to be relevant in many other parts of the world, Daily said. She is working with an interdisciplinary team of Sta...
The Molecular Profiling Institute named US provider of genetic breast cancer test
...stitute (MPI), today announced that it is the sole source
provider in the United States for MammaPrint. MammaPrint is a prognostic test developed by Agendia that helps identify how a breast cancer patient's tumor will behave. MPI in collaboration with the Netherlands-based Agendia, and AmeriPath will offer ...
What have scientists learned since Mount St. Helens erupted?
...theory of the importance of dispersal from distant source
populations that can prolong or limit colonization...iminating the need for dispersal corridors between source
populations and newly created habitat patches. These oases habitats were of tremendous importance to...
UCSD researchers derive lessons about human evolution from chicken genome
...ng because of the bird's importance to humans as a source
of nutrition, as well as for its role in medical research. Outbreaks of avian flu and their potential impact on human disease factors were also a major concern. Further details of Pevzner and Tesler's work on the chicken genome project with co-autho...
Cloned gene from sea animal may prove key in cancer drug development
...t such bacteria living in Bugula neritina were the source
of bryostatins, a family of chemical compounds being closely studied for their potential asanticancer pharmaceuticals in leukemia, lymphoma and several cancers including colon, breast, ovarian and prostate. One of the main obstacles impeding widespre...
Microbe's genome reveals insights into ocean ecology
...organic carbon fixed by primary producers as their source
of cell material to also use inorganic compounds (in this case, carbon monoxide and sulfur) for energy. In that way, the microbes can save more of the organic compounds for biosynthetic processes allowing more efficient use of organic carbon in an e...
NSF funds Panikov's Alaskan Tundra Microbial Observatory project
...tion, converting the tundra from a 'sink' to a net source
of CO2-to-atmosphere. The understanding, prediction and mitigation of the observed climate and atmospheric changes critically depend on knowledge of permafrost microbiology. Broader impacts of the research include more reliable climate predictions, ...
JCI table of contents, December 15 2004
...s suggest that accumulated fatty tissue is a major source
of ROS in obesity and acts as an early trigger of ...one. They show that platelets act as: (i) a direct source
of lysophosphatidic acid (LPA), which promotes tumor cell division; and (ii) indirect activators of ...
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