Tag: "light" at biology news
Study begins to reveal clues to the cause and progression of sepsis
...tter of degree. The Pitt researchers say that in light
of their results, treatments that completely abolish a specific component of the inflammatory response would be ineffective, and could be dangerous, since the inflammatory response is needed to address the underlying infection. Instead, they believe...
Beyond batteries: Storing power in a sheet of paper
...in small handheld electronics, the paper batteries light
weight could make them ideal for use in automobiles, aircraft, and even boats. The paper also could be molded into different shapes, such as a car door, which would enable important new engineering innovations. Plus, because of the high paper conte...
Interaction of just 2 genes governs coloration patterns in mice
...mutations in both genes that produces a mouse very light
in color. "Thus, two different types of mutations in two different genes each contribute to the light
coloration of beach mice," Hoekstra says. "This work represents a first step into understanding how ...
Bursts of waves drive immune system 'soldiers' toward invaders
...sease. Visible only under a very high-resolution light
microscope, the dynamic waves are made of a signaling protein that directs cell movement. This protein and a second key player were already known to trigger cells to move, but their interaction to generate the self-sustaining waves has now been revea...
Protein 'chatter' linked to cancer activation
...n Nature Structural & Molecular Biology, sheds new light
on the pathology of three related but non-curable cancer-predisposed human disorders: ataxia telangiectasia, ataxia telangiectasia-like disorder, and Nijmegen breakage syndrome. The proteins whose deficiency is responsible for these three human di...
MIT creates 3-D images of living cell
...index, which is a measure of how much the speed of light
is reduced as it passes through the material. The higher the index, the slower the light
travels. The researchers made their measurements using a technique known as interferometry, in wh...
X-ray images help explain limits to insect body size
...Energy's Argonne National Laboratory have cast new light
on why the giant insects that lived millions of years ago disappeared. In the late Paleozoic Era, with atmospheric oxygen levels reaching record highs, some insects evolved into giants. When oxygen levels returned to lower levels, the insect giants...
Circadian clock controls plant growth hormone
...heir growth to take advantage of resources such as light
and water, and suggests that many other processes ...lls shoots to grow away from the ground and toward light
and water. Charles Darwin conducted early experiments that showed how auxin affects plant growth. Mo...
1 of deep ocean's most turbulent areas has big impact on climate
... watts, the same unit of measurement as printed on light
bulbs, St. Laurent said. In the undersea mountain passage where we intentionally looked, we found turbulence levels as large as one-10th watt per cubic meter of seawater. This is a huge amount of energy when you add all the seawater in the passage, e...
A unique arrangement for egg cell division
...cross species and the new insights might help shed light
on defects occurring in human egg cell development. The first step in the development of an egg cell is the division of its progenitor cell, the oocyte. Unlike other cells in the body, an oocyte does not divide equally to produce two identical daught...
Sugar and spice and everything nice: Health differences in newborn girls and boys
...mulation of acid in newborn female livers may shed light
on why pediatric liver transplants are less successful when the livers are donated from infant girls. The studies were conducted by Danny Quaglietta, Department of Physiology, Michael P. Belanger, Department of Surgery, and Carin Wittnich, Depart...
Research aims to identify markers for menopausal women at risk for deadly blood clot
... the findings from the female KEEPS study may shed light
on these mechanisms involving men. Conclusion According to Dr. Miller, This type of research brings us closer to defining risk profiles for a specific health issue. Our hope is that it can lead to tools that will allow doctors to provide hormo...
American Chemical Society's Weekly PressPac -- Aug. 1, 2007
...ed with certain chemical compounds that respond to light
in ways that release precisely controlled amounts of the drug. Drug release begins when light
falls on the compounds, and lasts only as long as the light
continues to shine. The study reports ...
Computer graphics spills from milk to medicine
...o create a life-like milk image by determining how light
will interact with your specified ratio of milk fa... participating refers to the fact that some of the light
that hits the material is absorbed and not reflected. In addition to creating images based on wha...
Research team enlightens the reasons for severe blindness
...into the exterior segment of the optical cell. The light
reception takes place exactly here. If the lebercilin synthesis is disturbed, the already used optical crimson in the exterior segment cannot be replaced anymore and the eyesight is lost, according to the researchers hypothesis. Very similar transp...
Anthrax bacterium's deadly secrets probed
...haves in the unusual way that it does have come to light
thanks to a development under the UK e-Science Pro...al host and not in the soil. This finding sheds light
on why Bacillus anthracis does not grow in soil, even though in many ways it resembles a soil-growin...
Census of Marine Life historians detail collapse of bluefin tuna population off northern Europe
...r publication in the journal Marine Biology, sheds light
on habitat used by spawning bluefin tuna and may o...ins (recording location, depth, water temperature, light
level and the tunas abdominal temperature), the researchers correlated the breeding behaviours revea...
Discredited Korean embryonic stem cells' true origins revealed
...ston and the Harvard Stem Cell Institute sheds new light
on a now-discredited Korean embryonic stem cell line, setting the historical record straight and also establishing a much-needed set of standards for characterizing human embryonic stem cells. The report was published online August 2 by the journal C...
Gold nanoparticles may pan out as tool for cancer diagnosis
...s bind to their marker, they "scatter," or disrupt light
in a characteristic manner that researchers can then pair to the nanorod's dimensions, its antibody and the target cancer marker, which must be present for binding to occur. More than 200,000 women are diagnosed with breast cancer every year in the...
High rates of HIV infection documented among young Nepalese girls sex-trafficked to India
...e understood, said Silverman. This study sheds new light
on infection rates among a sex-trafficked population and exposes both the tragic existence of the youngest victims and the dire health consequences of this crime. Silverman and his team suggest several likely explanations for the observed high r...
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