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Tag: "positively" at biology news

Researchers discover chemical compounds that affect plant growth

...as chemical genomics, to identify those that could positively or negatively affect gravity's effect on plant growth, which is closely linked to the movement of proteins through plant cell membranes, a process known as endomembrane trafficking. "Well-characterized bioactive chemicals and their targets identifie...

Engineers improve plastic's potential for use in implants by linking it to biological material

...e charge, which in T59 appeared to be drawn to the positively charged surface of the polypyrrole the way magnets of opposite charges cling together. Yet other peptides containing aspartic acid didn't attach to polypyrrole, leading the researchers to speculate that something contributed by the other amino acids ...

Anthrax test, developed by army and CDC, receives FDA approval

...llow clinical diagnosticians to use these tests to positively identify pathogens," said Colonel George W. Korch, Jr., commander of USAMRIID. "Successes such as these demonstrate that we can translate our research efforts into products for our health care providers and clinical laboratory professionals." ...

'Mad cow' proteins successfully detected in blood

...llow clinical diagnosticians to use these tests to positively identify pathogens," said Colonel George W. Korch, Jr., commander of USAMRIID. "Successes such as these demonstrate that we can translate our research efforts into products for our health care providers and clinical laboratory professionals." ...

Can our genes tell the story of our divergence?

...s in humans to their equivalents in chimps to find positively selected genes in both species. Nielsen et al. id... Glanowski S, Sackton TB, et al. (2005) A scan for positively selected genes in the genomes of humans and chimpanzees. PLoS Biol 3(6): e170. ...

Beetle-inspired switch uses water for bonding

...electricity from electrodes. The electricity moves positively charged atoms, called ions, in the water through the minute capillaries of a thin disk of porous glass embedded in the plate. The water moves and wells up into a micrometer-sized droplet on the plate surface. The exposed droplet can then stick to ano...

Bird samples from Mongolia confirmed as H5N1 avian flu

...United States Department of Agriculture (USDA) has positively identified the pathogenic form of avian flu--H5N1--in samples taken from birds last week in Mongolia by field veterinarians from the Wildlife Conservation Society (WCS). It is the first instance of this viral strain occurring in wild migratory birds ...

'Cookbook recipes' would cure disease with nontoxic DNA delivery systems

...e idea is to glue the lipids and DNA together with positively charged ions like calcium." Using synchrotron sma...ed DNA. "First, the strands of DNA are coated with positively charged ions," Wong said. "The strands are then wrapped with negatively charged lipids and resemble ...

Human brain is still evolving

...ke guesses, but our study doesn't reveal how these positively selected variants arrived," he said. "They may have arisen in Europe or the Middle East and spread more readily east and west due to human migrations, as opposed to south to Africa because of geographic barriers. Or, they could have arisen in Africa,...

Researchers map of genetic variations implicated in disease

...systemic lupus erythematosus. The QBL haplotype is positively associated with Graves' disease and type 1 diabetes. ...

Potential heart benefit found in stem cells

... the number of bone-marrow stem cells injected was positively related to the follow-up EF levels, and negatively correlated to the stress-induced and resting perfusion defects. "In at-risk patients, combined treatment with bone-marrow derived stem cells may offer an effective alternative to improving cardiac...

Researchers use mass spectrometry to detect norovirus particles

...onging to the viral coat protein, the virus can be positively identified by matching the results to entries in genetic databases. In the Hopkins study, the researchers analyzed a stool sample treated with virus-like particles, which closely resemble norovirus but are noninfectious. Using mass spectrometry, the...

Ancient ants arose 140-168 million years ago

...onging to the viral coat protein, the virus can be positively identified by matching the results to entries in genetic databases. In the Hopkins study, the researchers analyzed a stool sample treated with virus-like particles, which closely resemble norovirus but are noninfectious. Using mass spectrometry, the...

Markers of gene, protein, or micro-RNA activity predict outcome in prostate and colorectal cancers

...te genes to further analyze. Ten of the genes were positively correlated to cancer progression, and six were negatively correlated, she said, and when tested, the combination generated a gene expression score that provided a better predictor of relapse than the Gleason score. "This gene expression score appears...

AIDS-related cognitive impairment exists in two separate forms

...te genes to further analyze. Ten of the genes were positively correlated to cancer progression, and six were negatively correlated, she said, and when tested, the combination generated a gene expression score that provided a better predictor of relapse than the Gleason score. "This gene expression score appears...

Neuronal cell cultures kept on the straight and narrow

... the substrate with multiple alternating layers of positively and negatively charged polymers, building up a so-called polyelectrolyte multilayer (PEM). Properly selected, the PEM coating convinces the neuronal cells that they're in a good environment to attach, develop and produce the characteristic neuron pro...

Fatty spheres loaded with siRNA shrink ovarian cancer tumors in preclinical trial

...charge. Its neutrality provides an advantage over positively or negatively charged liposomes when it comes to binding with and penetrating cells. The next step for the FAK siRNA-DOPC liposome is toxicity testing. "So far it appears to be very well-tolerated," Sood says. "We hope to develop this approach for...

Carnegie Mellon researchers discover key deficiencies in brains of people with autism

...on the size of the white matter -- was found to be positively correlated with functional connectivity, which is ... with autism, and that structural connectivity was positively correlated with functional connectivity. The authors believe that the heavy reliance on visualizatio...

High dopamine transporter levels not correlated with ADHD

...tion-deficit hyperactivity disorder (ADHD) are not positively correlated with the disease. In fact, the study fo...evels of dopamine transporters in the putamen were positively associated with scores of inattention on the self-report questionnaire: the higher the level of tran...

Microcapsules like it hot and salty

...ocapsules are constructed from alternate layers of positively and negatively charged polymer molecules so that molecules with very different properties can be used to make the capsules. To maximize the usefulness of the capsules, it is important that the permeability of the capsule wall can be adjusted pre...

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