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Tag: "field" at biology news

Women cautioned against using herbal supplements

...h was reviewed by two international experts in the field as well as the five scientists on the BCERF staff. "Just because herbal medicines are 'natural' products does not mean that they are safer than conventional medicines," he said. "The ingredients in herbal medicines can also have adverse effects and ...

Researchers propose measures to curb lion attacks in Tanzania

... a significant step forward in the fast-developing field of stem cell research. Until now, experts have struggled to find a supply of cells in sufficient numbers that does not offend previous critics of stem cell research. The latest advance looks set to overcome such difficulties. The trans-Atlantic team...

Menopause Symptoms May Come Back After Stopping Menopausal Hormone Therapy

...h was reviewed by two international experts in the field as well as the five scientists on the BCERF staff. "Just because herbal medicines are 'natural' products does not mean that they are safer than conventional medicines," he said. "The ingredients in herbal medicines can also have adverse effects and ...

U-M researchers identify new blood test for prostate cancer

...eins on their surface, and were able to narrow the field to the 22 biomarkers that most often pinpointed the cancerous blood samples. More than 230,000 men will be diagnosed with prostate cancer this year. Current screening methods involve a blood test to check for prostate specific antigen, an enzyme pr...

Digging in the dirt for life's biochemical foundations

...ore easily available," Fitter says. "Moving to the field is always difficult but rewarding." Related sites Shachar-Hill faculty Web page: http://www.plantbiology.msu.edu/shachar-hill.shtml ...

Vineyard weeds found to host Pierce's disease of grapes

...and compare survival of the infections in selected field and greenhouse-grown plants," said Christina Wistr...id. In addition, she noted that the joint lab and field experiments showed that environmental conditions strongly influenced how rapidly the bacteria multip...

Ants, not evil spirits, create devil's gardens in the Amazon rainforest, study finds

... Nature. The discovery was made during a four-year field study led by Stanford graduate student Megan E. Fr...ts in the future." Frederickson is conducting new field studies to determine which chemical cues the ants use to discriminate between host plants and other ...

The very defensive caterpillar

...ts. It had always been assumed that insects in the field would be naïve to such control agents but these re...e of insect constantly exposed to pathogens in the field may be very different from all the work described in the laboratory. This raises new challenges for ...

NHGRI Selects 13 More Organisms for Genome Sequencing

...10002154. To learn more about the rapidly growing field of comparative genomic analysis, go to: www.genome.gov/11509542. For the white papers on other organisms currently in NHGRI’s sequencing pipeline, go to: www.genome.gov/10002154. For more on NHGRI’s selection process for large-scale sequencing projec...

Possible treatment found for 'chemobrain'

...10002154. To learn more about the rapidly growing field of comparative genomic analysis, go to: www.genome.gov/11509542. For the white papers on other organisms currently in NHGRI’s sequencing pipeline, go to: www.genome.gov/10002154. For more on NHGRI’s selection process for large-scale sequencing projec...

Change in gene may be underlying molecular defect in some colorectal cancers

...ying molecular defect. The molecular basis for the field defect is easy to understand when tumors develop f...carcinogen such as tobacco smoke. However, how the field defect may arise in most sporadic cancers in unclear. In colorectal cancer, the DNA repair gene O 6...

Helping in a selfish world

...mbination of laboratory experiments and underwater field observations in Lake Tanganyika (Zambia), Stiver and Balshine examined how the help provided to breeders varied by how related the helpers were to the breeders. "While some helpers work or care for young because they are related to the dominant breed...

Traditional models underestimate extinction rates

...ethods to estimate extinction risk. Unfortunately, field biologists typically can't generate the large, high-quality datasets that led to the precise predictions reported here. Conservation efforts will depend on developing methods of generating reliable predictions with the limited data available from the...

Carnegie Mellon cyLab researchers work to develop new red tide monitoring

...to simply convert harmful algae data into an image field that can be easily accessed to map out the deadly algae's location and where it may travel. The new software is designed to incorporate multiple computer vision algorithms and the domain knowledge from NOAA scientists. "Spatiotemporal data mining ex...

Toxic flood lifts lid on common urban pollution problem

...tive is especially relevant because it is based on field research in New Orleans and Baton Rouge, where he was a professor at Louisiana State University before taking a job at UF this summer. "What we see in New Orleans is that when you put a lot of water in contact with the urban environment, all the pot...

Genomics researchers discover protein deficit that causes drug toxicity

...he Mayo researchers say their finding advances the field of pharmacogenomics, which tailors medicine to a patient's personal genetic makeup. In the current issue of the Proceedings of the National Academy of Sciences, (http://www.pnas.org/cgi/content/abstract/102/26/9394) Mayo researchers report that unde...

Computers close in on protein structure prediction

...hen uses a detailed physical chemistry based force field which favors close packing of atoms and hydrogen bonding to more accurately compute the energy of the structure. "What seems to be critical is the packing of the molecule," Baker said. "The protein fits together perfectly with no holes in the middle...

Scientists create digital bacteria to forge advances in biomedical research

...ns to understand how the sun reverses its magnetic field every 11 years. Each digital cell in AgentCell is a virtual Escherichia coli, a single-celled bacterium, which is equipped with all the virtual components necessary to search for food. These digital E. coli contain their own chemotaxis system, which...

DNA from feathers tells tale of eagle fidelity

...s, said Todd Katzner, director of conservation and field research at the National Aviary in Pittsburgh and a study co-author. "You can't conserve a population unless you know how big it is and whether it's growing or shrinking," Katzner said. "This approach allows us to monitor wild populations in a way t...

Acid water in East Java threatens biodiversity and local welfare

...t to investigate the local ecology. Yet during her field work on East Java, Dutch biologist Ansje Lohr became increasingly involved with the local residents, whose harvests failed and whose health was deteriorating due to extremely acidified and polluted river water. Lohr has recently received a second gra...

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