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Tag: "systems" at biology news

Researchers to develop ultra-miniature implantable sensors to measure blood flow

...nt could consist of microscopic implants or sensor systems integrated with present tools." Kan noted that these miniature sensors can be as small as 100 microns in length by 100 microns in width, and with development, these sizes could shrink to several microns. To give that size some perspective, the avera...

Evolutionary forces explain why women live longer than men

...e guys at a disadvantage in longevity. Male immune systems are somewhat weaker, and their bodies are less able to process the fat they eat, Kruger said. And behavioral causes---smoking, overeating, reckless driving, violence---set men apart from most women. "Because mortality rates in general are going down,...

Origen publishes in Nature a robust and versatile method for creating transgenic chickens

...now take transgene designs that work well in model systems and breed flocks of birds depositing therapeutic p...tages over either plant or other transgenic animal systems for protein production. Besides the ability to produce antibodies with enhanced cell killing propert...

K-Staters design and build a low-cost remote sensing tool for environmental studies

... of developing the airframe and the remote control systems for the sensing tool, while Ham and Goodin will pu...sy fuels that could compromise the data collection systems and greatly reduces vibration." According to Schinstock, the remote sensing tool will meet a need s...

Discovery could aid fight against cystic fibrosis infection

... Pseudomonas aeruginosa (PA) use protein secretion systems to cause disease in their hosts," said Joseph Mougous, lead author of the study published in the June 9 issue of Science. "In the case of Pseudomonas aeruginosa, the host may be a cancer patient with a weakened immune system, a burn patient, or a per...

Innovative method for creating a human cytomegalovirus vaccine outlined

...ant recipients, and others with compromised immune systems are at risk for complications. The virus is a member of the herpes virus family, which includes the herpes simplex viruses, the viruses that cause chicken pox (varicella-zoster virus), and infectious mononucleosis (Epstein-Barr virus.) Infectious tra...

Quick -- what’s that smell?

... accumulated information about these other sensory systems to help us understand olfaction." Exactly how t...haps including development of electronic olfactory systems that would have capabilities such as identification of odors for medical diagnosis or detection of l...

UCLA study finds same genes act differently in males and females

... The differences were not related to reproductive systems ?they were visible across the board and related to primary functions of a wide variety of organs." The UCLA findings support the importance of gender-specific clinical trials. Most medication dosages for women have been based on clinical trials pri...

In drug design, a loose fit may be best bet

..., a function that is essential to all cells in all systems in the body, including our sensory systems of hearing, balance, taste, and smell." By tweaking portions of the TRH molecule, the researchers d...

Biofuels researcher searches for new sources

...Chen-see Chen), an assistant professor of cropping systems at the Central Agricultural Research Center at Moccasin, Mont., and his collaborators are investigating Montana's potential for producing biofuels using "biomass," which refers to all biologically produced materials like grains, straw, hay, trees and...

Scientific issues associated with carbon-neutral energy sources such as cellulosic ethanol

...l aspects of knowledge about plant biology into a systems level understanding that can support an engineering approach to plant improvement," Somerville said. Somerville explained specific areas of research that need to be addressed during his presentation August 5 in Boston. The Advanced Energy Initiative...

Gut microbes' partnership helps body extract energy from food, store it as fat

...entists need to know who's living in our digestive systems and how they form strategic alliances with one another to benefit themselves and us. They also have to learn how much this cast of microbial characters varies in different human individuals. "We are superorganisms containing a mixture of not just hu...

Stem cells found in adult skin can be transplanted and function in mouse models of disease

... peripheral nerve, and even in the central nervous systems of mice that don't have myelin in their brains. While the research occurred in mouse models, some of their data indicate that human SKPs can do the same thing. "Previous work has only dealt with SKPs in culture and their more basic biology. Now we h...

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

...relationship between the language and visuospatial systems of the brain, the team used fMRI scans to view the patterns of activation in the brains of autistic and normal participants while they read a series of sentences to determine whether each one was true or false. The sentences either had high imagery c...

Polynesia explorers created worldwide web of scientific knowledge

...l and religious canons." In sum, they toppled old systems of belief, Liebersohn said, "while working to install colonial rule and capitalist commerce. From the beginning they were controversial." By the early 19th century the world of the travelers ?"steadily accumulating knowledge for its European public"...

Lost in thought: Brain research

...o "forget ourselves," only local, sensory-specific systems seem to be needed. ...

Basic work on E. coli identifies two new keys to regulation of bacterial gene expression

...b. "This knowledge can ultimately be put to use in systems that aren't so amenable to investigation, such as bacteria that cause cholera, produce anthrax toxin or lead to ulcers and stomach cancer." Scientists use model organisms because they are relatively easy to work with and because there is a vast amou...

Wild vs. lab rodent comparison supports hygiene hypothesis

...une disease because they -- and hence their immune systems -- have not been as challenged during everyday lif...ed to study the hypothesis by comparing the immune systems of wild house mice and common rats to laboratory mice and rats. The strength of this model, Parker s...

Computational analysis shows that plant hormones often go it alone

...ments represent a 'domino effect' that resets many systems within the plant." Combining traditional biological approaches with computational analysis will move plant biologists closer to answering the age-old question of how plants grow, the Salk researchers predict. "Microarrays are very useful for those ...

UN review shows need to halt destructive fishing practice

... trawling until formal conservation and management systems can be set up. Nations have until Aug. 7 to respond to the review, which will be considered by the General Assembly before the end of the year. Marine scientists and developing countries have called for a moratorium against high seas bottom traw...

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