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Tag: "look" at biology news

Carnegie Mellon scientists find key HIV protein makes cell membranes bend more easily

...ses use to infect cells, so it will be exciting to look at other viral systems with our experimental method,” she said. Many different viruses could enter cells by efficiently lowering the energy required to penetrate a cell’s outer membrane, according to Tristram-Nagle and her collaborator, John Nagle, ...

Nicotine rush hinges on sugar in neurons

... findings. The study provides the first detailed look at part of the mouse nicotinic acetylcholine receptor (nAChR), one in a large and important group of molecules, known as ion channel proteins, that allow signals to pass between neurons. The results reveal an important role for the sugar molecules ...

Cellular message movement captured on video

...erstand how normal cells function, but we can also look at diseased cells to see why they sometimes don’t move properly or why they don’t transmit information properly.”...

Researchers discover inherited mutation for leukemia

...udy. "Our findings show that it's important to look for both genetic and epigenetic alterations when identifying problem genes," he says. CLL is the most common form of adult leukemia, with 15,300 new cases and 4,500 deaths from the disease expected this year in the United States. The leukemia is ...

Math that powers spam filters used to understand how brain learns to move our muscles

... again and the computer learner was again asked to look at that same spot. The learner’s speed and pattern in adapting its movements matched the experimental results of the monkeys almost perfectly. “We found that this Bayesian model can explain almost all of the phenomena we observe in regard to learning...

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

...d to cigarette smoke for either six or 12 weeks to look for alterations in a specific stretch of repeated portions of DNA, called Ms6-hm, which does not contain any known genes. The “smoking” mice were exposed to two cigarettes per day, the equivalent – based on blood levels of tobacco by-products – of an...

Modeling the restless brain

... of Psychological and Brain Sciences, took a close look at the spontaneous activity of the brain at rest. ...ontaneous fluctuations in the monkey's brain would look like. Coauthors of the article are Rolf Kötter, a neuroanatomist at Radboud University in Nijmegen i...

Simulations unravel outer membrane transport mechanism

...to assess this experimentally because they have to look at the accessibility of certain (amino acids) before and after activation,” Tajkhorshid said. “And sometimes the labeling agent that they use diffuses into the beta-barrel and labels the inside: You don’t know whether what you have labeled is happeni...

CSIRO scientists join fight to save 'Tassie devil'

...breeding populations.” Dr Church and his team will look to extend their work using the Australian synchrotron infrared beam line when it comes on-line later this year. Steve Marvanek, Spatial Data Analyst at CSIRO Land and Water, integrated historical wildlife spotlight data, devil monitoring data and ...

New bacterium discovered -- related to cause of trench fever

...posure to body lice. Medical staff should know to look for Bartonella infections if someone with a persistent, unexplained high fever has a cat, has been homeless or has been in the Andes Mountains. “As we continue to discover new pathogens and how humans get infected with them, we improve our abili...

In mice, drug protects against diabetes and atherosclerosis

...il cautioned that experiments were not designed to look for such effects rigorously. While it is not certain that the experimental compound or others like it can be developed into successful drugs for humans, Hotamisligil described the animal results as a long-sought success after a decade of intense e...

Undergraduate research shows leaderless honeybee organizing

...sting, because nobody had ever really been able to look at that before,” he noted. “What was interesting was how little attention the workers pay the queen – until it became time to go – to become airborne. Then they started interacting with her at very high rates, and performing the ‘worker piping’ si...

Massive herds of animals found to still exist in Southern Sudan

...riends by the Government of Southern Sudan, and we look forward to working together to safeguard this amazing wildlife treasure.” Fay and his colleagues believe that follow-up aerial surveys and tracking will reveal that the team missed a significant portion of kob due to the animals’ movements duri...

Australian wins prestigious prize in biodiversity informatics

...s for online biodiversity analysis. He said " I look forward to using the Prize to broaden GBIF's range of data contributors to include industry and natural resource management agencies, and in further developing its contribution to biodiversity conservation planning.”...

Herpes virus hijacks DNA repair process

...r response to viral invasion, means that we should look into whether other DNA viruses use a similar approach to enhance their growth," says Virgin. ...

Marine phytoplankton changes form to protect itself from different predators

...examples of complex defensive strategies when they look more closely at other single-celled organisms. The response of Phaeocystis could be important to scientists studying climate change because the predator that ultimately consumes the phytoplankton determines the fate of the carbon it contains. If ...

Warning from Asian bees

...rop, but domestic prospects for the next two years look very bleak,” Dr Somerville said. “There will be very few eucalypt flowerings in the next 12 months, which will lead to a yield well below average in the Australian honey crop over the next 12 months to two years.” All sections of the local indu...

Researchers demonstrate way to control tree height

... that it’s possible to create miniature trees that look similar to normal trees – but after several years ...ees,” Strauss said. “The modified trees themselves look pretty much normal, just a lot smaller, and a little more compact or bushy.” Altogether, the rese...

Surprising origin of cell's internal highways

...and senior author on the paper. "So I am trying to look at their origins." The Golgi has been suspected to function as an MTOC, explained Kaverina. However, conclusively demonstrating this was impossible before the advent of live-cell imaging techniques that could reveal the true origins of these stru...

Helping chlorine-eating bacteria clean up toxic waste

...he said. "As we develop the model, we can begin to look at the genomes of other strains of Dehalococcoides. If genes that are important in our strain are found in others ... then we can do the same experiments with the others." Finding which genes are at work with which pollutants might lead to understand...

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