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Tag: "mixed" at biology news

Faster, more accurate tuberculosis test developed

..., the study authors collected 3,760 sputum--saliva mixed with respiratory discharge--in order to complete sensitivity and susceptibility studies of the MODS test. All samples were decontaminated and then used for parallel MODS testing, as well as for two current gold standard TB tests-- the Lowenstein-Jens...

Engineer ramps up protein production, develops versatile viral spheres

...by introducing dead or weakened copies of viruses, mixed with other chemicals, into the bloodstream with the hope that they will provoke a strong, albeit general, response by the immune system. The process is akin to advertising a product to a random audience and hoping some consumers become interested. ...

Otherworldly bacteria discovered two miles down

...se creatures is left-over from ancient groundwater mixed with ancient hydrothermal fluid. We can detect that because the chemical signature arises from interacting with the fracture's wall rock," commented Rumble. "It is possible that communities like this can sustain themselves indefinitely, given enough ...

Mars mission Risk 29: Scientists research ways to reduce radiation-induced brain damage

..., Irvine, Calif., high energy proton dose-rate and mixed field effects on neoplastic transformation in vitro Jerry Shay, University of Texas Southwestern Medical Center, Dallas, risk assessment of space radiation-enhanced colon tumorigenesis Betsy Sutherland, Brookhaven National Laboratory, Long Isla...

Pilot study successful in taming allergic reactions to food

...cts were given small doses of powdered egg orally, mixed in food. “We started the subjects with a very smal... doses, which the subjects consumed daily at home, mixed with other foods. The children returned to the clinic every two weeks. At each visit, the resear...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...to say that we've got one molecule in 20 of type A mixed in with type B, or something like that,'' Boxer said. This world is flat-sometimes ''Imagine how a cell could divide if it weren't for the fact that the membranes were flexible,'' Boxer said. ''They must be flexible. You have endocytosis, exocyto...

Iowa State researchers improving plastics made from corn and soy proteins

...ect. Those clay platelets need to be separated and mixed evenly throughout the plastic to be much good as a reinforcing agent. The researchers are turning to high-powered ultrasonics ?high-frequency sound waves too high for human hearing ?to separate and disperse the platelets. It's a technology Grewell...

Tamed 11,400 years ago, figs were likely first domesticated crop

...ce strategy of these early Neolithic farmers was a mixed exploitation of wild plants and initial fig domestication," Bar-Yosef says. "Apparently, this kind of economy, a mixture of cultivation of wild plants, planting fig trees and gathering other plant foods in nature, was widely practiced during the seco...

Orange, grapefruit juice for breakfast builds bones in rats

...n. Deyhim said fresh grapefruit or orange juice - mixed with sodium bicarbonate to neutralize acidity - was given to the rats each morning. "They drank it with no problem, every morning," Deyhim said. "They drank more fresh juice than I did during that period." Deyhim said the juice study was followed b...

Robots manipulating animal behaviour

... of natural agents, in this case cockroaches, in a mixed community." ...

Scientists to employ Arctic ice and polar bears to protect diversity of world's crops

...romising news." Using reverse genetics, the team mixed genes from a safe, laboratory bird flu virus with a gene for the hemagglutinin (HA) protein from the H5N1 virus isolated in Hong Kong. The virus uses the HA proteins on its surface to infect cells in the respiratory tract. The resulting vaccine had t...

H5N1 vaccine could be basis for life-saving stockpile

...romising news." Using reverse genetics, the team mixed genes from a safe, laboratory bird flu virus with a gene for the hemagglutinin (HA) protein from the H5N1 virus isolated in Hong Kong. The virus uses the HA proteins on its surface to infect cells in the respiratory tract. The resulting vaccine had t...

Over-use of antibiotics in fish-for-food industry encourages bacterial resistance and disease

...h, animals and humans alike. When antibiotics are mixed with fish food, residual antibiotics may be found in fish products and fish meat. People who eat these products will be inadvertently consuming antibiotics, leading to changes in their normal microbial environment, or 'microflora' and making them mor...

Chromosomal abnormalities in sperm higher after vasectomy reversal

... a condition where sperm are created but cannot be mixed with the ejaculatory fluid due to a physical obstruction (such as a vasectomy). He found that they had high rates of chromosomal aneuploidy (where an abnormal number of specific chromosomes or chromosome sets exist within the nucleus of the cell) a...

DOE JGI finishes 100th microbial genome

...h. Resists radiation; can bioremediate radioactive mixed waste. Desulfovibrio desulfuricans G20. Judy D. Wall, University of Missouri. Reduces sulfate, uranium, and toxic metals; corrodes iron piping; "sours" petroleum with hydrogen sulfide. Geobacter metallireducens. Derek Lovley, University of Massach...

Finding a better way to make biodiesel

...y convert animal fats into biodiesel by creating a mixed oxide catalyst that has both acidic and basic catalytic sites. Acidic catalysts on the particle can convert the free fatty acids to biodiesel while basic catalysts can convert the oils into fuel. And the particles themselves are environmentally safe...

Researchers map out networks that determine cell fate

... first step, pushing these stem cells towards this mixed lineage, midway between two related cell types -- ...ew treatments for leukemias, in which a persistent mixed lineage seems to drive cancerous proliferation. Although the researchers worked only with blood-for...

NASA study solves ocean plant mystery

...me from the deep parts of the ocean, when water is mixed by the wind. Iron also can come from dust blowing in the air. Approximately half of the photosynthesis on Earth occurs in the oceans, and the remainder on land. Ocean and land plants share the same basic requirements for photosynthesis and growth. ...

Vegetables inhibit growth of prostate cancer in mice with human tumors

...Black-footed and Laysan albatrosses both consume a mixed diet of squid, fish, and fish eggs. Finkelstein analyzed nitrogen isotope ratios in the two species--an indicator of an animal's "trophic level," or how high it is on the food chain--and found no significant difference. "Biomagnification means that ...

Albatross study shows regional differences in ocean contamination

...Black-footed and Laysan albatrosses both consume a mixed diet of squid, fish, and fish eggs. Finkelstein analyzed nitrogen isotope ratios in the two species--an indicator of an animal's "trophic level," or how high it is on the food chain--and found no significant difference. "Biomagnification means that ...

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