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Tag: "novelty" at biology news

Bioelectronic ‘signatures?hold key to DNA mutations

...w-cost identification of these SNP variants. “The novelty of the approach is the combination of the nanocrystal tagging of DNA to create electro-diverse signatures and combining them with a fast, portable, low-cost electronic detection,?Wang says. To achieve the desired results, Wang and his researchers cu...

Gambling monkeys give insight into neural machinery of risk

... whether the monkeys were simply responding to the novelty of the risky target. "We wondered whether the monkeys preferred the risky target because the experiment was dull and boring, and they wanted the variability," said Platt. "But when we made the task more interesting by changing the color of the ligh...

Gene controlling circadian rhythms linked to drug addiction

...e suprachiasmatic nucleus," said Dr. Nestler. "The novelty of Dr. McClung's findings is the role Clock plays in brain reward pathways. The next step is to examine Clock and related genes in human addicts." Dr. Donald Cooper, assistant professor of psychiatry at UT Southwestern, also contributed to the study...

Retina adapts to seek the unexpected, ignore the commonplace

...y visual environments. "Apparently our thirst for novelty begins in the eye itself," says Markus Meister, the Jeff C. Tarr Professor of Molecular and Cellular Biology in Harvard's Faculty of Arts and Sciences. "Our eyes report the visual world to the brain, but not very faithfully. Instead, the retina creat...

A bug's life: Exceptional genomic stability yet rapid protein evolution in a carpenter ant mutualist

... "Symbiosis is an important driver of evolutionary novelty and ecological diversity," explains Wernegreen. "Microbial symbionts in particular have been major evolutionary catalysts throughout the 4 billion years of life on earth and have largely shaped the evolution of complex organisms." Symbiotic bacteria...

Free-energy theory borne out in large-scale protein folding

...ns given off by the proteins as they folded. "The novelty of this work is the direct and quantitative comparison of the time-dependent simulation data with the experimental measurements from circular dichroism and tryptophan fluorescence," Das said. "The excellent agreement between experiment and theory ill...

Pitt professor's theory of evolution gets boost from cell research

...n altogether different environment by the time the novelty finally escapes its recessive state and expresses itself. "You just can't do a quick fix on the environment to prevent extinction because the cause of the mutation occurred some time in the past, and you don't know what the cause of the stress was a...

Human albumin from tobacco plants

...tables, always using nuclear transformation. The novelty in this research arises from the method of obtention of the HSA. The plastidial system enables the extraction of great quantities of albumin. With nuclear transformation, the maximum level obtained is 0.5% of the total soluble protein of the plant, w...

Nano machine switches between biological and silicon worlds

... a number of channels measured in nano-metres. The novelty of microfluidics is that it can channel liquids in laminar, or predictable, flow. The floor of this channel is peppered with Hall-Effect sensors. The Hall Effect describes how a magnetic field influences an electric current. That influence can be me...

Commonly used antidepressants may also affect human immune system

...ribe the precise nature of this interaction. "The novelty is that we reveal a potential communication, involving the transmitter serotonin, between immune cells that is normally only found between neurons," Ahern said. In addition to Ahern, Peta Connell, Ph.D., from the Robarts Research Institute in Canada...

UC San Diego biologists solve plant growth hormone enigma

...rcial purposes. Seedless fruits would not just be novelty items. For example, Zhao points out that seeds significantly increase the effort and waste involved in producing tomato sauce. "This study is a real tour de force," commented Martin Yanofsky, a professor of biology at UCSD, who was not one of the a...

Pure novelty spurs the brain

...le is known about whether the brain really prefers novelty as such. Rather, the major "novelty center" of the...ith humans showing that the SN/VTA does respond to novelty as such and this novelty motivates the brain to explore, seeking a reward. The researchers of Univer...

Massive duplication of genes may solve Darwin's 'abominable mystery' about flowering plants

...unction. Rather than gradually collecting genetic novelty by single-gene duplications, simultaneously having a full genome's worth of raw material to elaborate new genetic function could drive sudden evolution. But because of the rapid, massive gene loss after a whole-genome duplication, these events are n...

How the US drug safety system should be changed

...rs of individuals in the studies, and the risk and novelty of the drug, as well as addressing all premarketing safety questions. "The current system is moving toward a delay in drug approval, still followed by optional postmarketing studies," notes Strom. "Instead, the proposed approach would be conditional...

Einstein researchers demonstrate a novel approach to treating AIDS

...cted cells that make these infections chronic. The novelty of this technique is that it targets the cells infected by HIV, which act as 'factories' for making more of the virus. So if we could eradicate all the HIV-infected cells in a patient­which would likely require a combination of therapies--then we cou...

Biologists prove critical step in membrane fusion

...sion is surprisingly stable in live cells. "The novelty of these results is that a live cell can maintain a hemifused state for hours, days, even months," said Julian Wong, a postdoctoral research associate in the Wessel lab and the first author of the journal article in Developmental Cell. "When using th...

New technologies coming too fast for Indian farmers

...r of choices in the seed market and the desire for novelty ?all of which lead to lack of proper seed testing ...contributes to those woes. The farmers' desire for novelty leads to rapid turnover in the seed market. Seed firms frequently take seeds that have become less p...

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