Tag: "study" at biology news
Researchers devise potent new tools to curb ivory poaching
...igh confidence that the assignment is correct. The study
indicated that 50 percent of the samples tested were accurately located within 300 miles and 80 percent were accurate to within less than 600 miles. Accuracy was much greater among forest populations, which are more clearly defined because of terrain...
Punching the timeclock of life
...or Paola Fabrizio. Scientists use baker's yeast to study
aging because the molecular pathway that regulates its longevity is similar to that in other organisms, such as mice and possibly humans, Longo said. "Basically, it is the first demonstration, to our knowledge, that aging is programmed and altr...
Indiana University, EPA to study airborne PCBs
...onmental scientists Ronald Hites and Ilora Basu to study
the toxin's circulation between the air and the Gr...s can be from nearby or very far away." A previous study
by Hites and Basu reported increased lake PCB levels at Sturgeon Point, N. Y., when winds blew south...
Tracing genes, biologists show lizard migration is traced to Florida
A new study
headed by biologists at Washington University in St. Louis shows that Florida is an exporter of more than just fruit and star athletes. Studying genetic variation in the common brown lizard, Anolis sagrei, the researchers found that introduced popu...
Marijuana use could cause tubal pregnancies
...d Developmental Biology at Vanderbilt. The current study
began with the observation that mice commonly used...pendency in humans. Dey and his colleagues plan to study
whether certain polymorphisms also may reflect an increased risk for ectopic pregnancy. "That will b...
Knock knock knocking on rhythm's neural doors
...eams of 'e's are utterly different, according to a study
done by a University of Southern California neural...es of movement are quite drastically distinct. The study
monitored eleven volunteer subjects, who performed a simple flex of the wrist while undergoing fMRI ...
Fortifying food with folic acid benefits babies
...id must be added to flour, cornmeal and pasta. The study
supports the continuation of this food fortificati... 2001, once fortification was introduced. Over the study
period, the number of women aged between 19 and 44 who took folic acid supplements rose significantl...
Rice finds 'on-off switch' for buckyball toxicity
...r potential toxicity to humans and animals. CBEN's study
is the first cytotoxicity study
of human cells exposed to buckyballs. Cytotoxicity refers to toxic effects on individual cells. The ...
UCI scientists successfully target key HIV protein; breakthrough may lead to new drug therapies
...ry and pathology. Besides Weiss, co-authors of the study
are Allison Olszewski, Ken Sato, Zachary D. Aron, Frederick Cohen, Aleishia Harris, Brenda R. McDougall, W. Edward Robinson Jr., and Larry Overman. Olszewski, a doctoral candidate in chemistry, is the lead author of the paper. Overman's laboratory sy...
New sequence involved in DNA replication timing may aid in cancer detection
...a stretch of DNA that verifies this hypothesis. To study
DNA replication timing, Huberman and Yompakdee used fission yeast as a model organism because of its small size, rapid cell cycle, and convenient genetics. "Human beings have 46 large chromosomes, while cells of the tiny fission yeast contain three m...
Bronfenbrenner book sums up human development
...many social and behavioral scientists approach the study
of human beings and their environments. The theory led to new directions in basic research and to applications in the design of programs and policies affecting the well-being of children and families both in the United States and abroad. The book is...
Master of antimalarial resistance
...h Sidhuof Albert Einstein College of Medicine. The study
was supported in part bythe Wellcome Trust UK and BBSRC, the National Institutes of Health and theEllison Medical Foundation. David J. Johnson, David A. Fidock, Mathirut Mungthin, Viswanathan Lakshmanan, Amar Bir Singh Sidhu, Patrick G. Bray, and Ste...
Pollutant causes delayed flowering in plants
...ctivation process like a key fitting a lock. "This study
will validate the concept that nitric oxide is an important plant hormone," Pei said. "It provides the hard evidence that is needed to demonstrate nitric oxide's role, since flowering is such a fundamental, well-studied process."...
No role for simian virus 40 in human pleural mesotheliomas
...e study's lead author. "An important aspect of our study
was that the availability of frozen mesothelioma t...d to show that it is completely absent." Their study
presents multiple lines of evidence against the proposed link between SV40 and human mesotheliomas. ...
Researchers ID chlorophyll-regulating gene
...t climates to drier, hostile environments. In a study
published in the Sept. 24 issue of the journal Sci...l," said lead author Enamul Huq, who conducted the study
while he was a post-doctoral researcher at UC Berkeley's Department of Plant and Microbial Biology. ...
Females may be more susceptible to overindulge 'sweet tooth' cravings than males
...ed almost exclusively in males. In the new animal study
"Diet-induced hyperphagia in the rat is influenced... the presence of such a diet. The results of their study
were published in the American Journal of Physiology Regulatory, Integrative and Comparative Physio...
Enzyme maintaining chromosome ends is linked to bone cancer recurrence, decreased survival
...oral fellow, is the paper's first author. Although study
results are preliminary, they might lead to tests ...future. The findings were based on a retrospective study
of samples taken from osteosarcoma tumors of children treated at St. Jude during a 20-year period. ...
Anthrax enzyme images reveal secrets of antibiotic resistance, suggest new drug design
...ous bacteria use DHPS to make folate, the St. Jude study
holds promise for solving the growing problem of antibiotic resistance among microorganisms causing tuberculosis, pneumonia and a variety of other diseases, according to Kerim Babaoglu, the paper's first author. "The pharmaceutical industry is reduci...
Groundbreaking research could ignite new solutions to heat transfer in nano-devices
...for energy transfer and also provided the tools to study
other molecules," said Dr. Dlott. "In designing nanoscale devices, the shapes of the molecules must be designed not only to be small and fast, but also to move heat effectively. There is no reason that this technique is not applicable to just about a...
New hydrothermal vents discovered as 'South Pacific Odyssey' research begins
...he perfect geologic experiment," an ideal place to study
the processes that connect Earth's deep interior t...search community as the best place in the world to study
the links between the geology, chemistry, and biology of a back-arc spreading center and to understa...
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