Tag: "source" at biology news
Diatom genome reveals key role in biosphere's carbon cycle
...and produce oxygen. And they are an important food source
for many other marine organisms. Scientists would like to better understand how these organisms react to changes in sea temperatures, the amount of light penetrating the oceans, and nutrients. "Oceanographers thought we understood how diatoms use n...
A treatment, not a cure: Calcium silicate neutralizes an acidic stream
...rically used various forms of limestone, a natural source
of calcium carbonate. Its neutralizing effects are short-lived, however, and can generate extreme fluctuations in water chemistry. Recognizing the limitations of limestone, Likens and colleagues looked to another material to neutralize an acidified s...
Most promising clinical uses for stem cells from fat agreed on by international society
...ing how adipose tissue, or fat, can be an abundant source
of stem cells that could be used for tissue engine...lable and easily accessible, it offers a practical source
of stem cells. A key question the group answered was simply what to call the cells, with the deci...
NIH awards Emory and Georgia Tech $10 million for partnerships in cancer nanotechnology
...ition said, "Dr. Nie's accomplishments are a great source
of pride for both the Georgia Cancer Coalition and the state of Georgia. These two research grants, totaling $10 million, will help move us closer to developing new treatment techniques and possible cures for cancer. We are very enthusiastic about ...
Is Interleukin-6 the 'holy grail' of exercise mediation?
...at skeletal muscle cells themselves are the likely source
of production. The skeletal muscles seem to produc...ut there's no evidence that either is actually the source
of these problems. Indeed, it's possible, for instance, that IL-6 expression may be up-regulated in ...
Viruses found in untreated city water
...ected by upstream sewage treatment plants and is a source
for viruses." Contrary to expectations, researche...for contamination. "The only other human fecal source
near the wells is sanitary sewer lines," Borchardt said. "Sanitary sewers can leak and it is possibl...
Researchers find chemosignal that encourages women's sexual desire
... participants were blind to the hypotheses and the source
of the compounds," Spencer said. "The study was presented to the subjects as an examination of odor perception during the menstrual cycle." Participants were given a set of pads on a regular basis and asked to swipe them under their noses i...
MIT: Recycling of scrapped electronics studied
...hat recycle scrapped electronic equipment, a major source
of toxic pollutants. The metrics focus not just on how much of a firm's incoming waste is processed but also on the quality and reusability of the materials produced from it, a consideration critical to overall resource efficiency. To assess the p...
New risks for bladder cancer identified by MIT team
...r in nonsmokers. Although second-hand smoke is one source
of exposure for non-smokers, the researchers say that it is very important to identify the other sources of exposure for nonsmokers. "Identifying the non-smoking related sources of these [carcinogens] should become a high scientific priority," w...
Story tips from the Department of Energy's Oak Ridge National Laboratory, October 2004
...ump that produces warmer air than conventional air source
heat pumps, especially during the defrosting cycle and at lower overall cost. A heat pump circulating warm air through a structure can struggle when the outside temperature is low and the pump's compressor and outdoor coil motor are affected by the c...
Muscling in on a deadly cancer
...lop tumors. That makes satellite cells an unlikely source
of the cancer. Scientists who reviewed the paper argued the cancer could still originate in rare subtypes of muscle stem cells. Keller and Capecchi plan to test those cells. But Keller says that when the Pax3:Fkhr fusion gene was tu...
Gene-altered mouse is model for rare autoimmune syndrome
...m the genetically altered mice. Bone marrow is the source
of immune cells that could cause the disorder. The researchers' experiments with the Id3-deficient mice also revealed that T cells play a dominant and essential role in generating the pathology of the disorder. According to Zhuang, developme...
Large-scale forces shape local ocean life, global study shows
...pical coral reefs and the Amazon rainforest act as source
areas, Witman said more areas must be identified. ...e environment," he said. "We don't know much about source
pools. We need a lot more research in this area." The project focused on invertebrate spe...
ORNL system eliminates perchlorate, helps scientists trace source
...in tracking environmental perchlorate, finding its source
and resolving resulting liability issues, said ORN...ls from Chile used to make fertilizers, making the source
sometimes difficult to trace. Conventional treatments use tiny resin beads to trap the perchlo...
Genetic data crunching achieves milestone at Stanford
...ld. Several years ago the team made the database's source
code publicly available, and Catherine Ball, PhD, the director of the Stanford Microarray Database, serves as president of the Microarray Gene Expression Database Society, an international group working to implement standards for such work with micro...
OHSU study: Bacterial switching mechanism key to survival
...ams to take advantage of the best-available carbon source
for energy. Gram-positive bacteria include those t...xylose, they can use this carbohydrate as a carbon source
and meet their energy needs this way. Interestingly, if you put them in with glucose and xylose, the...
New DNA repair enzyme makes mistakes to save lives of cells
...ion from X-rays or agents in chemotherapy and the source
determines which enzyme is involved and its technique for repair. For instance, normal wear and tear on a cell can cause a base to break off the DNA strand, and enzymes, including POL-Q, repair the DNA by inserting bases where they are found missing....
Insects implicated in the evolution of new human infectious diseases
...et they have been generally ignored as a potential source
of microbes that could be harmful for man," said Dr Waterfield. "As well as passing microbes directly into our bloodstream when they bite us, insects can also act as a reservoir to 'cook up' future human diseases. "Understanding the mechanism that th...
Human embryonic stem cells promising for replacement of blood supply
...lls for platelets used in blood transfusions, or a source
of new blood supply free of any viruses. They might also be a source
for bone marrow transplants, especially for those patients who do not otherwise have an appropriatel...
Sick kids researchers unmask the potential of stem cells found in adult skin
...hat stem cells derived from this non-controversial source
possess for the development of possible therapies for spinal cord injury and nervous system disorders. This research is reported in the November issue of the scientific journal Nature. "We think these stem cells are actually embryonic cells that go o...
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