Tag: "inherent" at biology news

Nanoencapsulation: Chemists at TSRI discover a new and simple way of controlling reactions

...e triggered to react. He adds that this control is inherent within the reaction a self-regulatory control, not unlike what living systems use in nature. "To study the dynamics of living systems, which are really very complex," he says, "you have to look at systems such as these." The research article "Amplifi...

Tidying up transcription factors

...g about a particularly important class of proteins inherent to all living cells. In the Feb. 1 issue of Science, James E. Darnell, Jr., M.D, and Ali H. Brivanlou, Ph.D., propose a reclassification of all known transcription factors - an essential group of over 2000 proteins responsible for turning genes "on" ...

February media highlights - GSA Bulletin

...eographic barriers and environmental instabilities inherent to marginal bays and seaways). The two marine bioprovinces differed dramatically in type of dominant shellfish. This is consistent with recent paleogeographic reconstructions that suggest a lack of a direct marine connection between the Paratethys an...

A genetic risk factor for substance abuse

...ure to recognize sampling methodology difficulties inherent in association studies of polygenic disorders. The authors examined the frequency of the AA genotype and A allele in several groups of substance-dependent cases, unrestricted controls, and super controls screened for the use of alcohol and cigarettes...

Chimpanzee virus may be key to better vaccines, study shows

...e issue of viral pre-exposure. Ertl emphasizes the inherent safety of the chimpanzee adenovirus vaccine concept she and her colleagues have developed. Concerns that a contaminant might accompany the vaccine - a virus like HIV, for example, which originated in chimpanzees - are addressed by the laboratory proc...

Report supports sustainable food production

...ce on a finite natural resource base. The problems inherent in industrial agriculture are complex and there is no single solution, so many people might feel powerless to affect them. But, according to senior author Polly Walker, MD, associate director of the Center for a Livable Future, one personal act that ...

When every minute counts

...cally inert, and is non-botanical, so it offers no inherent risk of disease transmission and is non-allergenic. QuikClot rapidly absorbs all the liquid in the blood, and leaves behind the clotting factors which then get to work immediately. The material itself is indestructible (it is heated to 800F during p...

Mouse model of alopecia

...t mice may help explain the clinical heterogeneity inherent to a subset of human keratin-based skin disorders. Inherited mutations in the human keratin 17 gene cause two separate epithelial disorders related to ectodermal dysplasias. Although each disorder is mainly characterized by different epithelial anomo...

Ras gene causes cancer via different pathways in humans vs. mice

...anti-cancer drugs in humans, and it reinforces the inherent differences between human and mouse cancers in terms of how they evolve." Results of the Duke study are being published in the Aug. 15, 2002, issue of Genes and Development. The Duke researchers decided to study oncogenic Ras, one of the first ...

Shark fin soup: Scientists now can tell which kind of shark

...ne, taking a bite out of the massive uncertainties inherent in protecting these vulnerable marine predators. Their results are published in the recent issue of the journal Conservation Biology. "We have developed an efficient way to achieve accurate and rapid identification of shark body parts, including ...

Wrong proteins targeted in battle against cancer?

...r to disrupt. Still, Darnell argues that, despite inherent obstacles, such an approach could potentially yield novel cancer therapeutics. "After all," he asks, "What is the benefit to medicine in all the twenty-first century promise of proteomics if we cannot selectively inhibit protein-protein interactions?...

ASPB urges opposition to mandatory labeling of genetically modified foods in Oregon

...ives into commercial species can carry far greater inherent risks than the technologies targeted by Measure 27. For example, to counter Late Blight (responsible for the Irish potato famine) resistant wild relatives of potato can be crossed into commercial potatoes. However, these crosses carry the risk of tra...

The role of obesity and calories in cancer prevention

...Cancer Institute (NCI). The study used mice with inherent alterations in two important and commonly altered genetic pathways in the human cancer process. Their mice were deficient in p53 (a tumor suppressor gene that acts like a brake to protect against uncontrolled cell proliferation) and also had high ma...

Rolex announces winners of international awards

...nes and many people depend. "Despite the diversity inherent in the Rolex Awards, the Laureates all have in common the spirit of enterprise that characterizes the program," said Mr. Patrick Heiniger, chief executive officer of Rolex S.A. and chairman of the Selection Committee. "Whether saving whales or endang...

Imaging study provides new information on how the brain processes sounds of different tones

...mation mainly concerning cortical areas because of inherent limitations in probing subcortical function. Now, a team of researchers have used Functional Magnetic Resonance Imaging (fMRI) study to compare compared the representation of repetition rate across cortical and subcortical structures of the human aud...

New theory explains economic growth in terms of evolutionary biology

...of quality for survival declined," said Galor. The inherent advantage in reproduction of people who highly value a large number of children gradually dominated and their fertility rates ultimately overtook the fertility rates of people who value high-quality children, he said. "Oded Galor's tendency to ask bi...

Checkpoint protein blocks chromosome breaks at fragile sites

...call them fragile sites, but the reasons for their inherent instability have remained a mystery. Now Glover and colleagues at the U-M Medical School and the Howard Hughes Medical Institute have discovered that a protein called ATR protects fragile sites from breaking during DNA replication. Results of their r...

Scientists crack the black box of coastal ecosystems

...riability in ocean populations, the complexity and inherent uncertainty of the coastal ecosystem points towards the need to build in buffers. An example might be designing networks of reserves that can take advantage of variability protecting a variety of habitats and oceanographic features so that we will b...

Dealing with reams of data

...ot," says Pevsner. "But even with the complexities inherent in the brain, we think microarrays can help improve understanding of neurological disorders."...

Are we mice or men? Gene mutation linked to improving heart failure in mice proves lethal in humans

...iesalso indicate that we need to better understand inherent differences incardiac physiology between mice and humans. Dr. Kranias concluded that"these data emphasize a general concern that targeted therapies whose designis based exclusively on results of studies in rodent models, in whichphenotypes can differ...

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