Tag: "environment" at biology news
Ocean colour satellites guide research ship through South Pacific's watery desert
...n population has adapted to this nutrient depleted environment
at various depths, whether unknown ultraviolet-adapted species inhabit these waters, and the optical properties of this naturally very pure water. Then, since December 6 to the end of its cruise, L'Atalante sailed in the rich, cold and g...
Antibiotic resistant bacterium uses Sonar-like strategy to 'see' enemies or prey
...is made whenever there is another cell type in the environment
near the bacterium, such as a human blood cell. Th...ilmore, "These bacteria are actively probing their environment
for enemies or food. Based on whether or not they 'see' other cells, they make the toxin appropriate...
Ants' 'genetic engineering' leads to species interdependency
...velopment. In virtually all ant species, it is the environment
in which a female is raised, rather than a genetic predisposition, that determines which caste she will adopt. However, in two harvester ant populations in southern New Mexico, queens and workers from the same colonies are genetically very different;...
University of Chicago researchers discovered that humans are a 'privileged' evolutionary lineage
... he said. But how did human ancestors encounter an environment
where selection for better brains suddenly became such a prominent force? Lahn suggests that because humans have become a progressively more social species, greater cognitive abilities have become more of an advantage. "As humans become more social, ...
Flame retardant exposure linked to house dust
... concentrations are increasing rapidly both in the environment
and in human tissues and body fluids. Toxicologica...to the new NIST/EPA study, house dust and the home environment
are likely candidates for other sources of exposure. A survey of 17 homes in the Washington, D.C...
Suspect protein found to play protective role in chronic lung disease
...eceptor on the severity of pulmonary disease in an environment
of elevated adenosine. This double-knockout approach was employed in the JCI paper. Blackburn's team, including Chun-Xiao Sun, Ph.D., lead author of the JCI paper and a senior research associate in biochemistry, is examining the receptors' roles one...
Urban ecology study witnessing the birth of a 'designer ecosystem'
...in the desert." The scientists note that the urban environment
differs from the surrounding desert in that it has...c life resources such as water, that in the native environment
is seasonal or highly localized. This leads to a larger and more consistent supply of growing plants...
Scientists decipher genome of bacterium that helps clean up major groundwater pollutants
... detection and monitoring of D. ethenogenes in the environment
and for studies of the genetics of microbial populations. The project also will help scientists study the evolution of catabolic pathways. The study suggests that the microbe may have developed the metabolic capability to consume chlorinated solvents...
Put science at center of decision-making on third world development, experts tell UN
...to developing world challenges, especially health, environment
and learning technologies; the Irish government has appointed a Chief Science Adviser to the Prime Minister; the government in Jamaica has devised a formal program aimed at boosting student interest in science and technology; and India has announced ...
Scientists discover unique microbe in California's largest lake
...a, with its high load of nutrients, may provide an environment
that allows this novel photosynthetic organism to ...s ' ability to live independently by mimicking the environment
created by the original host. In the open ocean, which itself is nutrient poor, the host animal or p...
Queen's discovery sheds new light on ancient temperatures
... rocks and further pursue the study of the ancient environment
at this time in earth's history. These measurements are being completed at the Queen's Facility for Isotope Research, one of the best in North America....
Unusual reproductive behavior of odd ants surprises scientists
... among colony members. In most of these societies, environment
is thought to influence whether larvae develop int...f caste development. They found that genetics not environment
determines the fate of a developing ant, and consequently the role it will play in the colony. The ...
Research turning up the heat on fowl bacteria
...sion so they are making the right proteins for the environment
they happen to be in," says Dr. Burns. The researchers are exploring this exploitation to learn how gene regulation changes. Dr. Burns is using microarray technology to look at gene expression in Campylobacter , which has one of the smallest genom...
Individualized medicine emerging from gene-environment studies
...cial health disparities can involve both genes and environment
and the interactions between them. The crux of th...ple of how the relative inputs of genetics and the environment
to a disease state can vary across cultures. High blood pressure affects about 65 percent of Africa...
Jeans too tight? 50 percent of adults can blame their genes and not just diet and exercise
...he change in Body Mass Index. How we deal with our environment
what we eat, the amount we eat and how much we exercise accounts for the other 50 percent. It's tough enough for Joe Six Pack to take off weight. But for those whose genes predispose them to be heavy, weight loss is going to be difficult really d...
American Academy of Microbiology report proposes initiative to interpret genome data
...ew progress in healthcare, biodefense, energy, the environment
and agriculture." Given the current lack of a reliable source of functional annotation data, the report recommends that a centralized genome annotation initiative be established in the United States. A key component of this initiative is the develop...
Anti-bacterial additive widespread in U.S. waterways
...ty, observed the occurrence of triclocarban in the environment
correlated strongly with that of triclosan, another commonly used antimicrobial chemical that has been studied in much greater detail because it is more easily detectable. Using an empirical model and published data on the environmental occurrence o...
Study provides insights on why some prostate cancer becomes resistant to hormone withdrawl therapy
...e complete androgen withdrawal seems to provide an environment
that favors the development of the cancer-causing mutations.In addition, the work is the first to show that a class of proteins called steroid receptors, of which the androgen receptor is a member, can become cancer-causing genes known as oncogenes. ...
Researchers find local environment directly influences adult stem cell reservoirs
...he other stem cells and is influenced by the local environment
to remain a stem cell, thereby maintaining the stem cell population. Dr. McKearin's research shows that within the local environment, or niche, of the stem cell population, stromal cells, the non-stem cells that surround and attach to stem cells, r...
Protein tyrosine phosphatases to be topic of ASBMB-Merck Award lecture
...The cell's ability to respond to its extracellular environment
depends on a complex, highly organized series of events referred to as cellular signaling. These events regulate fundamental cellular responses, the loss of which can lead the development of disease. The protein tyrosine phosphatases (PTPs) are a di...
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