Tag: "correspond" at biology news

Searching for new medications to treat alcoholism

...fficult to know how the doses we used with rodents correspond to doses for humans. However, previous studies in humans have shown that plasma levels of 6-beta naltrexol following naltrexone administration were two to 10 times as high as naltrexone. Naltrexone is typically given in 50-mg tablets. The dose ran...

Fish and flies caught in the act of speciation, Science researchers report

...m between the sites, the rate of gene flow did not correspond to immigration. Morphologically, fish that breed in the river consist of larger females that dig deeper nests, and river males have shallower bodies that allow them to cut through stronger currents than in the lake beach. Recently introduced populat...

New research shows calcium deficiency permits faster lead release from pregnant women's bones

...tified." Those characteristics, or variables, that correspond with more lead include smoking, less education, being black and low calcium intake, she said. Variables associated with a reduced lead level include history of breastfeeding and higher calcium intake. "We are still trying to determine whether there a...

Feds give $16 million to UNC-CH scientists studying waste site problems

...hich predicts how levels of exposure to chemicals correspond to the amount of oxidative stress in the body. Another area of research is how genetic traits may make certain individuals more susceptible to oxidative stress." Another study, led by Dr. Stephen M. Rappaport, seeks to explain how the body metaboliz...

7,000 feet under the Sea: LSU scientists take geology to great depths

...s show that previous large releases of methane gas correspond with past planetary climatic changes, such as global warming, it could explain why such events took place and whether Earth is in store for more such changes. "There is a lot of geologic evidence that brief events of global warming have taken p...

New Brookhaven Lab study shows how ritalin works

... of Ritalin, calculated using their body weight to correspond to the doses given to children with ADHD, or a placebo. While their brains were scanned to record dopamine levels, the subjects were asked to rate their feeling of restlessness and "high." Meanwhile, physicians monitored each subjects blood pressure ...

Scientists see early indications of lobster decline

...seeds you sow in your garden and finding that they correspond to some reduced number of seedlings and eventually the plants you harvest," says Steneck. "Predicting lobster abundances or landings is no easier than predicting the economy or the weather. While local lobster landings may generally reflect local lo...

Mouse with iron disorder offers clues to Parkinson's, similar diseases

...e brain areas affected in the IRP 2 deficient mice correspond closely to those affected in Multiple System Atrophy (formerly known as Olivopontocerebellar Atrophy). For this reason, the NICHD researchers are planning a study to test patients with this disorder for defects of the IRP2 gene. IRP 2 is a key p...

Sea grant study indicates potentially harmful human viruses in coastal waters

...er laws. Because the presence of the virus did not correspond with high bacteria counts, Jiang said she believes the current water quality standards are "not adequately indicating human health risks." "The presence of the virus does not correlate with high levels of bacteria," Jiang said. "Therefore, you don't ...

One change in farming makes for cleaner waterways

... pollutants, the computer-generated data did correspond with changes in actual pollutant levels in the lake. Actual water testing revealed that in the Sandusky River, both nitrogen and suspended solids decreased by about 20 percent in ...

Press invitation: Launch of climate strategies

...orts will be available on the day, which will also correspond to the launch of the new Climate Strategies website. Agenda (Local Times are BST) 1.00 pm Reception and lunch 1.30 pm Presentations 2.00 pm Discussion 2.30 pm Close Chair: Duncan Brack, Head of the Energy and Environment Programme, RIIA...

August media highlights GEOLOGY and GSA TODAY

...een hotspots on the Pacific plate, only four might correspond to the classical theory, whereas the majority exhibit short tracks and don't show any evidence of links with oceanic plateaus. The authors conclude that deep-mantle plumes are unnecessary to explain most, if any, volcanic chains on the Pacific plate....

A new model of cerebral cortex development

...ch area. We saw a identical array of patches that correspond on a one-to-one basis with the mouse's whiskers." (see illustration) The generation of a new cortical area by a molecular manipulation has not been seen before and may provide a clue about how the cerebral cortex changes in evolution. One way that e...

December media highlights - GSA BULLETIN

...lity. Consistent shifts in speleothem growth rates correspond in part with global glacial-interglacial climatic shifts. Sedimentary record and tectonic implications of Mesozoic rifting in southeast Mongolia.S.A. Graham et al. School of Earth Sciences, Stanford University, Stanford, California 94305, USA. Pages ...

Aquaporins - the perfect water filters of the cell

...ation rate observed in the simulation was found to correspond well to experimental values, an important test for the accuracy of the simulation. The simulations revealed a fascinating, delicately choreographed 'dance' of the water molecules, directed by carefully positioned protein parts (amino acids) at the ch...

Virginia Tech researchers join NSF Arabidopsis 2010 Project; may help produce plants that defend themselves without pesticides

... The scientists then must identify what substrates correspond to each enzyme and in what plant part the substrates are, as well as when they are produced. "The shoot, leaf, stem will have different enzymes or genes active in them as well as different substrates," Esen said. "Now we will know about the enzyme ...

New transgenic rat model of ALS expands research possibilities

...o the death of motor neurons, deaths that directly correspond to symptoms like limb paralysis. Glutamate excites neurons, whipping them into a frenzy. The glutamate transporter in astrocytes helps maintain an appropriate balance of glutamate outside the neurons so these key brain cells aren't over-stimulated. ...

Braille reading strategies may enhance stimulation of the brain responsible for vision

...l areas. The lower tier responses in large measure correspond to visual cortex subregions in sighted individuals. These findings indicate a need to reexamine the contribution of occipital cortex to reading. One possibility is that blind Braille readers use occipital cortex in a novel way, unlike the use of this...

Is the evidence for human 'replacement' really clear?

...otope Stage 3 (57,000-24,000 years ago) that could correspond with some of the isolated incidences we see of symboling, Clark said. Similarly, when much of northern Europe became glaciated during Oxygen Isotope Stage 2 (24,000-12,000), population packing certainly must have occurred in Southern Europe that wou...

Stanford's new antigen microarrays open window to better disease screening

...eople with rheumatoid arthritis produce spots that correspond to molecules found in the joints. Utz and William Robinson, MD, PhD, a fellow in the division of immunology and rheumatology and lead author on the paper, eventually hope to uncover the tell-tale patterns of all autoimmune diseases. Al...

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