day 2 9

Tag: "day" at biology news

Hot-spring bacteria flip a metabolic switch

...ties. As the sun goes down, these cells quit their day job of photosynthesis and unexpectedly begin to fix nitrogen, converting nitrogen gas (N2) into compounds that are useful for cell growth. The study, published January 30 in the early online edition of the Proceedings of the National Academy of Scie...

Portable cocaine sensor developed at UC Santa Barbara

...d my limits, like patience. Being in the lab every day taught me so much about myself and about science in general. It's not really the results that were so important but the journey and the process." ...

Free HIV tests cheaper than charging when goal is preventing AIDS

...ber of people seeking tests increased from 4.1 per day before the free testing interval to 15.0 per day during the pilot program. However, the number decreased to 7.1 people per day after the small fee ?1...

Cellular scale drug delivery from the inside out

... the risk of side affects to healthy cells may one day be possible thanks to a nanoscale drug delivery system being explored by researchers at the U.S. Department of Energy's Ames Laboratory. Using tiny silica particles call mesoporous nanospheres to carry drugs inside living cells, Ames Laboratory chem...

Frog’s ear canal may provide insights for understanding human hearing loss

...derstand how the ear evolved, the research may one day enable scientists to develop new strategies or technologies that help people to hear in environments where there is substantial background noise. The research was federally funded by the National Institute on Deafness and Other Communication Disorde...

Clawed frog helps Fanconi anemia research make leaps

...important protein complexes," Sobeck added. "Every day is exciting." ...

H5N1 avian flu virus vaccine induces immune responses in healthy adults

...ccine's safety by reviewing data collected through day 7 after the second vaccination; no safety concerns were found. The investigators then began stage two of the study, eventually enrolling an additional 333 healthy adult volunteers into the trial according to the same protocol design as in stage one. ...

Intelligently designed molecular evolution

... step in that direction. The idea would be to one day be able to design an enzyme synthase that would evolve along a specific functional pathway to yield a desired molecular product, then introduce it into microbes for mass production. In addition to synthesizing therapeutic drugs, other possible appli...

Minimal genome should be twice the size, study shows

...ng computer modelling and knowledge of the present day ecology of the bacteria the researchers were able to model this process of gene loss. They accurately predicted about 80 per cent of the gene content of the two bacteria, including some of the non-obvious features of their genomes. "Far from being ...

Carnegie Mellon scientists show brain uses optimal code for sound

...cts how we could optimize signal processing to one day allow for much more efficient data storage on everything from DVDs to iPods," Lewicki said. "For instance, if we could use a cochlear implant to 'talk' to the auditory nerve in a more natural way via our discovered coding, then we could quite possi...

Learning and memory stimulated by gut hormone

...e ghrelin is highest in the circulation during the day and when the stomach is empty, these results also indicate that learning may be most effective before meal-time. "Based on our observations in animal models, a practical recommendation could be that children may benefit from not overeating at breakf...

Taking a bite out of a fellow worker helps wasps recruit new foragers

...iduals and returned the insects to their nests. A day later, all foragers returning to a nest were remov... for the loss," O'Donnell explained. On the final day observers watched each colony, noted the behavior of the marked individuals to see which insects wer...

Genetic and environmental influences on alcohol consumption among rhesus monkeys

...-water solution as well as water for one hour each day during early afternoon for a period of five to seven weeks. "This study demonstrates that additive genetic factors contribute to the observed inter-individual variation in the consumption of alcohol in rhesus," said Lorenz. The term "additive gene...

Chemical warfare agent detection technology used to treat lung disease

...eading the research, said: "Our vision is that one day we will be able to detect a previously undetectable tumour metabolising inside a human lung simply by asking a patient to breathe into a device like this. For now our aim to use the microDMx sensor to develop better instruments which will improve pat...

Typhoid fever led to the fall of Athens

...ntify DNA sequences similar to those of the modern day Salmonella enterica serovar Typhi, the organism that causes typhoid fever. The results of this study point to typhoid fever as the probable cause of the Plague of Athens. Typhoid fever is transmitted by contaminated food or water, and nowadays the ...

Ernst Mayr's theory illustrated in genetic epidemiology studies

...introduced in 1954, remains controversial to this day and has many detractors. Mayr believed that genes interacted with one another, and that this genetic interaction in turn led to an interaction of natural selection with genetic drift that could cause genetic revolution ?new directions of evolutionar...

Scientists design potent anthrax toxin inhibitor

...is confirmed by additional testing, they could one day be important adjuncts to standard antibiotic therapy for the treatment of inhalation anthrax," says NIAID Director Anthony S. Fauci, M.D. The spore-forming bacterium Bacillus anthracis produces a toxin that causes anthrax symptoms. Antibiotics are u...

Nanotechnology may find disease before it starts

Nanotechnology may one day help physicians detect the very earliest stages of...in its infancy, Rosol and his colleagues foresee a day when nanotechnology can alert a physician to the beginnings of cancer or heart disease, perhaps in a...

The world's deepest dinosaur finding - 2256 metres below the seabed

...e remains of the old dinosaur now see the light of day again, or more precisely, parts of the dinosaur. The fossil is in fact just a crushed knucklebone in a drilling core ?a long cylinder of rock drilled out from an exploration well at the Snorre offshore field. Norway's first dinosaur fossil is a Plat...

New DNA 'fingerprinting' technique separates hemp from marijuana

...enough can be learned about the genome, it may one day be possible to produce an entirely drug-free hemp plant that looks different from marijuana. Currently, all hemp products are imported into the United States. Developing a new variety that could be cultivated in the United States would reduce America...

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