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Tag: "sources" at biology news

Sandia research to focus on early detection of harmful algal blooms

...ell suited to detecting algal toxins in freshwater sources and complements other ongoing research at Sandia. Sandia's Water Initiative ( www.sandia.gov/water ), for example, strives to increase the safety, security and sustainability of water infrastructure through the development of advanced technologies th...

Mayo Clinic collaboration mining of ancient herbal text leads to potential new anti-bacterial drug

...ter therapies. "Natural products are invaluable sources of healing agents -- consider, for example, that aspirin derived originally from willow bark, and the molecular basis of the anti-cancer chemotherapeutic agent Taxol TM was derived from the bark of the Pacific yew tree. So it's not so far-fetched to...

Disappearing nest egg: Researcher studying declining numbers of macaws

...Brightsmith confirms. "So nesting areas and food sources for macaws are being eliminated." Other prime macaw nesting grounds are being lost by logging and clearing the land for agriculture, he adds. Brightsmith will return to the area in October and hopes to install collars on numerous macaws and use sat...

Human testis harbors HIV-1 in resident immune cells

...ti-retroviral therapy that effectively targets all sources of HIV, including the testis, is gravely needed. The use of this testis culture system may allow assessment of new anti-retroviral drugs that target HIV in the testis. ...

New biochip helps study living cells, may speed drug development

...ell, the chip delivers 64 simultaneous, continuous sources of data. This additional data allows for a deeper understanding of cellular activity compared to current technology, which measures only one point outside one cell and cannot record simultaneously, Porterfield said. The chip also directly records...

Buildup of damaged DNA in cells drives aging

... is that avoiding or reducing DNA damage caused by sources such as sunlight and cigarette smoke, as well as by our own metabolism, also could delay aging," explained Dr. Niedernhofer....

New data from NIH lab confirms protocol to reverse type 1 diabetes in mice

..., but it appears that there are multiple potential sources for regenerating islets. As a research community we should pursue all avenues. We're excited to see what will happen in humans." In the 2001 and 2003 studies, Faustman and colleagues treated end-stage nonobese diabetic (NOD) mice with Freund's c...

NASA study: Alaskan fires affected Houston air quality in 2004

... "This event highlights the critical role imported sources can have on local air quality," Morris said. ...

Study finds the air rich with bacteria

...ys Andersen. "This will also help us determine the sources of airborne bacteria. Does it come from nearby farms and water treatment plants, or is it imported by the wind from another state or country?" The team also determined that location was not as strong a source of microbial variation as time and wea...

Researchers examine why food tastes bad to chemotherapy recipients

...s, metals in drinking water are actually important sources of micronutrients in the human diet. In fact, iron and copper are commonly found in drinking water, and they can be an important source of these mircronutrients. However, there are thresholds. If ingested at higher concentrations, greater than thre...

Developing uses for sugar-cane bagasse: Biotechnology applied to the paper industry

...ources, have compelled the sector to turn to other sources of raw materials, such as cereal straw, reeds, bam...umed by the fungus which preferentially uses other sources of carbon, resulting from the bagasse (saccharose) or put in with the substrate (maltose, yeast extr...

Siberian lakes burp 'time-bomb' greenhouse gas

...ew method of measuring ebullition (bubbling) point sources and used it to quantify methane emissions from two thaw lakes in North Siberia. As they walked across the frozen lakes they mapped locations and types of discrete methane bubbling trapped in the ice. By placing bubble traps over these spots and und...

Elusive rust resistance genes located

...n and unknown genes, and ideally combine different sources of resistance to speed up the delivery of new rust resistant wheat varieties." The marker has proven effective in a range of wheats from different backgrounds including from Australia, India, China, North America and the major wheat research centr...

Global malaria map key weapon in fight against malaria, scientists say

...The map will be constructed using information from sources such as satellites and population censuses. Statistical approaches will enable comparisons to be made between areas where good information on malaria exists with areas where there is no information to fill in the "gaps" to create a global map of mala...

'Empty nester' parent birds use recruitment calls to extend offspring care

...t inexperienced fledglings to rich, divisible food sources (adults responding to the calls often met with aggression from the caller). The researchers found that fledglings that responded to this call were much more successful than those sticking to areas chosen by themselves. This work shows that recruitmen...

Ocean sampling yields environmental sources of coral symbionts

...bioses with corals and thus point to environmental sources of symbionts that may prove important in the recovery of reef-building corals after bleaching events. ...

Power emerges from consensus in monkey social networks

...ost importance that signals be informative and any sources of ambiguity minimized," says Krakauer. "This requirement is reflected in the structure and function of communication networks. A goal of this research has been to study communication at a group level rather than the more traditional communication we...

Negative effects of caffeine are stronger on daytime sleep than on nocturnal sleep

...plains Dr. Carrier. "We often use coffee and other sources of caffeine during the nighttime to counteract sleepiness generated by sleep deprivation, jet lag, and shift-work. However, this habit may have important effects when you then try to recuperate during daytime." Thirty-four moderate caffeine consume...

New UD technology removes viruses from drinking water

...id, that naturally occurs in groundwater and other sources of drinking water. During the disinfection process, this natural organic material can react with chlorine to produce a variety of toxic chemicals called disinfection byproducts. "Our iron-based technology can help ensure drinking-water safety by r...

Vitamin D deficiency widespread during pregnancy

...in fatty fish but few other foods. Primary dietary sources include fortified foods such as milk and some ready-to-eat cereals and vitamin supplements. Sun exposure for skin synthesis of vitamin D also remains critical. "Our study shows that current vitamin D dietary intake recommendations are not enough t...

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