Tag: "changes" at biology news
Scientists map air pollution using corn grown in US fields
...We have to better understand emission patterns and changes
in the atmosphere in order to better regulate fossil fuels," said Susan Trumbore, also a professor of Earth system science and co-author of the study. "This is a direct way to measure the release of carbon dioxide emissions that are contributing to c...
Motor protein plays key role in connecting neurons
...ht regulation. "If you don't want to have dramatic changes
in your neuron structure, you don't want this mole... In fact, she suspects the function of myosin X changes
as the neuron develops. She has documented that in late stages of development, when the axon needs t...
Meeting the ethanol challenge: Scientists use supercomputer to target cellulose bottleneck
...l showed us how the binding portion of this enzyme changes
shape, which hadn't been anticipated by the scient...in order to capture enough of the motion and shape changes
of the enzyme as it interacted with the cellulose surface. This is an extremely long time in mol...
Biologically inspired sensors can augment sonar, vision system in submarines
...e of their biological counterpart. "By detecting changes
in water pressure and movement, the device can supplement sonar and vision systems in submarines and underwater robots," said Liu, who also is affiliated with the university’s Beckman Institute for Advanced Science and Technology, the Institute for G...
Research to spotlight carbon monoxide benefits
... healing process of a bruise, where various colour changes
indicate the degradation of haemoglobin and release of carbon monoxide. The slow release of carbon monoxide reduces blood pressure for someone who has angina, for instance. "This work is very much in its infancy. We became involved because some of...
Morphine makes lasting -- and surprising -- change in the brain
...aid. "We’ve shown here that morphine makes lasting changes
in the brain by blocking a mechanism that’s believ...plained. "That activity, combined with other brain changes
caused by the drugs, could increase vulnerability to addiction. The brain may, in fact, be learning ...
Linheng Li Lab documents the development of cancer stem cells
...ied by a loss of PTEN in stromal cells can lead to changes
that may increase the number of stem cells and cha...e their position or location," said Dr. Li. "These changes
result in crypt fission and budding and can lead to intestinal polyposis and uncontrolled tumor grow...
Reminding doctors which antibiotics to prescribe cuts C. difficile infection rates
...orced by feedback, was associated with significant changes
in targeted antibiotics and a significant reduction in CDI", explains Dr Stone. "National figures for CD and associated diseases showed the Royal Free to have the lowest rates of any teaching hospital. This success is largely being attributed to ...
Ocean's 'twilight zone' may be a key to understanding climate change
...en-house gas, the oceans may have little impact on changes
in the atmosphere or climate. The research is the result of two international expeditions to the Pacific Ocean, and is published in the April 27, 2007, issue of Science. "These results are particularly important to our efforts today to improve th...
Fish growth changes enhanced by climate change
...te temperature trends very similar to the apparent changes
in growth rates. In the south west Pacific east of Tasmania sea surface temperatures have risen nearly two degrees, based on the results of a monitoring program at Maria Island. Coinciding with this has been a southward shift in South Pacific zonal...
Williams College biologist explores photosynthetic apparatus
...he molecular responses and mechanisms triggered by changes
in environmental factors, such as light and temper...ritical in the context of potential global climate changes
to understand the effects of temperature on the photosynthetic capabilities of this ecologically imp...
Satellites shed light on global warming
...hers with a precise quantitative indication of the changes
and variability associated with the climate system over the past 16 years. "Thanks to a new archive of uniformly processed data from 1991 to the present day, which is due to be launched later this year, it will soon be possible to provide a defi...
Light-based probe 'sees' early cancers in first tests on human tissue
...e nucleus, or central component, of cells, through changes
in the way laser light scatters. "The size and sha... cell nuclei. "Our device lets us measure those changes
with much better accuracy than any imaging technique," Wax said. His team plans to begin a small ...
Cancer scientists create 'human' leukemia process to map how disease begins, progresses
...e process does not let you know what the series of changes
were that caused the cells to become leukemic, and when they happened. "With the method we developed, we have duplicated the natural process every step of the way. The method we developed opens the pathway generally to understanding the process ...
Minuscule molecules pack a powerful punch
...d a reduced response by T-cells. They also develop changes
to lung tissue, with scarring that is similar to some human systemic autoimmune disorders. To uncover how miR-155 might cause such widespread disruption of the immune system, the team used genomic studies to identify protein genes whose activity w...
Volcanic eruptions, ancient global warming linked
...rrelations with the marine fossil record. Dramatic changes
in the carbon-isotopic composition of the ocean, c...margin were responsible for the global warming and changes
in ocean chemistry. The breakthrough came from being able to find a marker ?the ash eruption ?tha...
'Hidden-hero' microbes in soil, water may help naturally clean toxic sites
... chemical additions and pH adjustments. Subsurface changes
are monitored using geophysical methods that send acoustic, electric and other signals into the ground. Kostka's research team from FSU's nationally top 10-ranked oceanography department will lead the "subsurface microbiology" p...
Syphilis rate on rise in US gay, bisexual men
... syphilis rates from 1990 to 2003 and reported the changes
during that time. The American Journal of Public Health released the findings online this week, and they will also appear in the June print edition. Between 1990 and 2000, syphilis rates fell by a whopping 90 percent, from a rate of 20.3 cases per...
Colour sensor breath test can detect lung cancer
...rises a chemical colour sensor, which detects tiny changes
in the unique chemical signature of the breath of people with lung cancer. Metabolic changes
in lung cancer cells cause changes
in the production and processing of volatile organic compounds, w...
New insights into autoimmunity and depression
...ate how an autoantibody could stimulate behavioral changes
by interaction with the brain, researchers at Tel ...nisms by which anti-ribosomal P induces behavioral changes
may lead to novel therapeutic advances for SLE patients with depression," Dr. Shoenfeld reflects....
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