Tag: "each" at biology news
Hidden diversity: DNA 'barcoding' reveals a common butterfly is actually 10 different species
...lgam of a number of genetically distinct lineages, each
with different caterpillars and preferences in foo...ssible, they included at least 20 individuals from each
group of food plant, color variation and preferred habitat. As a result, they found 10distinct spec...
Veterans with Gulf War syndrome have damage in specific, primitive portion of nervous system
...nstinct. "They're sort of the mirror image of each
other the yin and the yang of the nervous system that control functions we are not usually aware of. This is another part of the explanation as to why Gulf War syndrome is so elusive and mysterious," said Dr. Haley. Previously, isolating pure ...
Preclinical safety study shows adipose-derived stem cells improve heart function after heart attack
...ood that is ejected out of the left ventricle with each
contraction. "We are encouraged by the findings from this preclinical study, which suggest that delivery of autologous, adipose tissue-derived, regenerative cells is safe and effective in preserving left ventricular systolic function," said John K...
DNA barcode finds four new bird species
...animals can be used to identify species because in each
species the sequence varies slightly. He coined th...ds of different species. They found that each
of the 260 species tested had a distinct COI sequence. For 130 of these species, the researchers loo...
Tracing genes, biologists show lizard migration is traced to Florida
...fferent individuals to get a genetic "ID card" for each
lizard. The historic home for Anolis sagrei is th...rease during subsequent introductions because with each
introduction to Florida, there is a new mixing of genes from the distinct Cuban source populations."...
Marijuana use could cause tubal pregnancies
...000 ectopic pregnancies occur in the United States each
year (out of more than 6 million total pregnancies...eral survey interviews approximately 67,500 people each
year. Marijuana exerts its effects in the brain and peripheral organs through two cannabinoid recept...
Rice finds 'on-off switch' for buckyball toxicity
...how many cells died within 48 hours of exposure to each
solution, and they repeated the tests until they found the exposure level for each
that resulted in a 50 percent mortality rate. In general, the greater the degree of surface modific...
New sequence involved in DNA replication timing may aid in cancer detection
...fire at specific times throughout S phase, causing each
segment of the genome to replicate at a precise time. "S phase lasts about 8 hours in human cells and about 40 minutes in cells of the fission yeast, Schizosaccharomyces pombe ," explained Joel A. Huberman of Roswell Park Cancer Institute. "In bo...
Master of antimalarial resistance
... million people, mostly children, die from malaria each
year. Chloroquine is one of the most affordable and widely used antimalarial drugs available, but chloroquine-resistant malaria has become an increasingly serious problem in the developing world, with death rates rising as a consequence. The experime...
Scientists find nanowires capable of detecting individual viruses
...e specific receptors used to snag them and because each
virus binds to its receptor for a characteristic length of time before dislodging -- leaving only a minuscule risk of a false positive reading. "The fact that a nanowire array can detect a single virus means that this technology is the ultimate in se...
Joslin Diabetes Center honors brothers living 70-plus years with type 1 diabetes
... Joslin Medals for their living more than 70 years each
with insulin-dependent diabetes. The award ceremony, set for tomorrow, Thursday, Sept. 23, at 2 p.m. at The Nottingham Senior Living facility in Jamesville, NY, will honor Robert Cleveland, who has lived for more than 78 years with type 1 diabetes, a...
NSF awards 22 new projects for plant genome research
...l division and ensure that the newly divided cells each
receive a set of chromosomes. A growing challenge is how to handle the massive amounts of data coming out of ongoing genomics projects and to make it readily accessible to the broader community of students, researchers and breeders. This year's aw...
Key cell-death step found
...tochondria (tiny energy substations that churn out each
cell's power supply) continually fuse together and split in two. When mitochondrial fusion goes awry, cells are targeted for programmed cell death, or apoptosis. Apoptosis is a normal process in healthy individuals, but if mitochondrial fusion doesn...
Economy of movement
...it and bowler hat walks awkwardly down the street, each
convoluted step a labored movement. He lifts up on...t for fruit, the utility function says how many of each
you should buy. Similarly, Krding and colleagues observed people's preferred movements, then inferre...
Binocular rivalry: Fulfilling visual expectations
...ing person. When a walking figure was presented to each
of the two eyes, perception alternated between fir...king figures, were scrambled such that one half of each
walker was presented to each
eye, rivalry was all but abolished. Although our brain does not reco...
Study reveals why eyes in some paintings seem to follow viewers
...ch researcher repeated these tasks three times for each
of the six experimental conditions. "These experim...id. "We made judgments at numerous probe points on each
image, so that when all of the different conditions were completed we ended up making thousands of s...
Research suggests new avenue for stopping, preventing colon cancer
...lon cancer, which kills more than 50,000 Americans each
year, said the paper's senior author, Raymond N. DuBois, M.D., Ph.D., Hortense B. Ingram Professor of Molecular Oncology and the VICC's associate director for Cancer Prevention and Control. The receptor, called PPARdelta, plays an important role in ...
Genes expose secrets of sex on the side
...golian Khalks and highland Papua New Guineans. For each
group, DNA from 24 or 25 people was tested. Previously, researchers assumed equal numbers of men and women procreated. Based on that assumption, scientists explained the relative youth and low variability of the Y chromosome by suggesting...
Brown ecologist garners major National Science Foundation grant
... single gene, allowing them to understand the role each
variation plays in reproduction. Based on all this...test sites one in Finland, one in England and two each
in Germany and Spain to see which varieties live, which ones die and which ones produce the most se...
New sign language suggests children create language's fundamentals through learning
...caragua stayed at home and had little contact with each
other, according to Senghas. The government expand...evelop a system of gestures for communicating with each
other, both in and out of school. Today there are approximately 800 deaf signers of NSL, ranging fro...
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