explained 2 5

Tag: "explained" at biology news

Silver bullet: UGA researchers use laser, nanotechnology to rapidly detect viruses

...print. This phenomenon is well known, but Tripp explained that previous attempts to use Raman spectroscopy t...person produces in response to an infection. Tripp explained that these tests are prone to false positives because a person can still have antibodies in their sy...

Nanotech tools yield DNA transcription breakthrough

...to be resistant to current antibiotics. Ebright explained that his laboratory at Rutgers' Waksman Institute of Microbiology has two parts: One part seeks a fundamental understanding of the machine; the other uses that understanding to develop new classes of antibacterial agents that function by inhibiting t...

Common cold virus leads to death in lung transplant patients

...rates of exacerbation. These results may also help explained the increased susceptibility of children to rhinovirus infections. Further studies on susceptibility to rhinovirus infection in the population are now required." ...

Changing length of days reverses how estrogen affects aggressiveness in mice

...r in long days compared to short days could not be explained by the hormone using different receptors in different times of year," Trainor said. So how did estrogen have opposite behavioral effects depending on seasonal light conditions? The researchers generated another hypothesis by using microarrays, ...

Coral reefs are increasingly vulnerable to angry oceans

...and future storms or tsunamis." The researchers explained that managers can use this information to better understand how the world's coral reefs might change under a more unpredictable climate. "The predictive tool we have developed allows managers to assess the vulnerability of their reefs to extreme...

Buildup of damaged DNA in cells drives aging

...as by our own metabolism, also could delay aging," explained Dr. Niedernhofer....

A simple feedback resistor switch keeps latent HIV from awakening

...n of Tat, was sufficient to encode a resistor that explained Tat circuit shutoff and possibly the stability of HIV's latent state. In the Tat resistor model, as in the cell, Tat deacetylation occurs at a much faster rate than acetylation. Deacetylated (inactive) Tat can take one of two paths--reconversion ...

Complexity constrains evolution of human brain genes

...ch changed faster than those from mice. They explained the trend as a correlate of smaller population size in the more advanced species. Species with smaller population size can more easily escape the harsh scrutiny of natural selection. When they compared the pace of evolution among genes expressed ...

Microcapsules like it hot and salty

...very specific salt concentration and temperature," explained Maarten Biesheuvel, another member of the team of researchers. The theoretical model also predicts that it should be possible, by way of skilful adjustment of the conditions, to shrink initially swollen capsules and vice versa. This prediction w...

Dust to gust

...nvironmental Research Letters, the scientists have explained how the Bodélé valley's unique features might be responsible for making it such a major dust provider. It has been known for more than a decade that the existence of the Amazon rainforest depends on a supply of minerals washed off by rain from the s...

Killing brain tumors from within: A 'Trojan horse' approach

...leic acid-EFG molecule acts as a "guided missile," explained Prof. Levitzki, which, when injected into the blood stream, is avidly gobbled up by the multiple EGF receptors on the cancer cells, without harming normal cells. Once embedded in the tumor cells, it destroys them from within ?a true "Trojan horse," s...

Parental genes do what's best for baby

...that certain offspring characteristics can only be explained by their theory of genetic cooperation. “When we are conceived we inherit two copies of every gene ?one set from our mother and one from our father,?explained Dr Jason Wolf, who led the research in Manchester’s Faculty of Life Sciences. “But so...

Viral marker of human migration suspect

...genetic marker for human evolution and migration," explained Shackelton, whose findings appear this month (October) in the Journal of Virology. The researchers note that while previous studies of genetic variation have observed some differences between the distribution of JCV and human populations, the ext...

What animals can tell us about hemorrhage, organ transplants and aging

...ses the greatest damage to the organs and tissues, explained Andrews. Instead, the greatest damage occurs when the blood flow is restored (reperfusion). Hibernating animals have significantly reduced blood flow when they hibernate, but reperfuse without injury when emerging from hibernation. "If we can figur...

AIDS study challenges conventional treatment guidelines for HIV patients

... an individual patient's CD4 cell loss rate can be explained by his or her presenting viral load. Moreover, the results were remarkably similar when the analyses were reproduced separately in each of the two cohorts, and changed only minimally when the investigators considered the possible effect of errors in ...

UCSD study reveals how plants respond to elevated carbon dioxide

...chanisms are like fundamental parts of machinery," explained Young. "It's hard to predict what an instrument will do, if you don't even know anything about the parts that it is made from. Identify and characterize the parts, and you can figure out how they fit together to generate the structure of the machine,...

Melatonin improves mood in winter depression

...than the typically phase-delayed type of patient," explained Lewy, adding that more research is needed. Lewy is the Richard H. Phillips Professor of Biological Psychiatry, senior vice chairman of psychiatry, and director of the Sleep and Mood Disorders Lab, OHSU School of Medicine. ...

Scientists use gene signatures to match cancer and other diseases with potentially effective drugs

...to discover connections among drugs and diseases," explained Todd Golub, MD, who is an investigator at Dana-Farber, the head of the Cancer Program of the Broad Institute, an associate professor of pediatrics at Harvard Medical School, and a Howard Hughes Medical Institute Investigator. He is a senior author on...

Tweedle coat fashions stocky flies

...trivial matter to put a shell on from the inside," explained Steven Wasserman, a professor of biology who headed the research team. "An insect needs to build up the flexibility, strength and shape of each part before sealing the outside. If you've ever peeled a golf ball, you realize there isn't just one thi...

Worm links cancer risk to ageing

...risk of developing cancer as they get older may be explained by research published today (June 2). Scientists ...ged also determine lifespan in the nematode worm," explained Professor Gordon Lithgow, who carried out the work at The University of Manchester. "Our research h...

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