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Tag: "activities" at biology news

Chemical switch triggers critical cell activities

... relays in charge of several different biochemical activities that keep cells alive and functioning normally." Schulman, a Howard Hughes Medical Institute (HHMI) investigator, is senior author of the Nature report. Scientists already knew that E1 momentarily juggles two NEDD8 molecules at once, holding them...

Sleep disturbances affect classroom performance

...for an exam, do homework, etc. If extracurricular activities at school are proving to be too time-consuming, consider cutting back. If you are not asleep after 20 minutes, then get out of the bed and do something relaxing, such as reading a book or listening to music, until you are tired enough to go back ...

Canada's new government invests $200M in the fight against the mountain pine beetle

... areas affected by the infestation. Project activities will include measures to control the eastward spread of the beetle in British Columbia and along the British Columbia–Alberta border. The program will also assist affected communities in identifying new forest products, markets, industries and servic...

Scientists find method to pick noncompetitive animals, improve production

...nimals used for negative behavior or to avoid such activities is then transferred to production. "This selection methodology is a roadmap to improving the breeding of domesticated animals," Muir said. "The tool also could allow us to domesticate more species as readily available food sources, such as canniba...

Scientists use nanoparticle to discover disease-causing proteins

...alive. This allows the scientists to determine the activities of proteins that play roles in specific diseases. Proteins carry genetic messages throughout the cell causing biochemical changes that can determine whether a cell behaves normally or abnormally. Proteins also are important in directing immune respon...

'Night owls' report more insomnia-related symptoms

...ate types, people with insomnia who prefer evening activities (i.e., “night owls? reported the most sleep/wake irregularities and waking distress, even after adjusting for severity of sleep disturbance. “Our findings indicate that further research should investigate the relationship between circadian rhythms...

ESA launches new project to protect biodiversity

... may contribute to the conservation and monitoring activities of the different actors involved in UNCBD in Central America. ESA has identified four main users: the United Nations Educational, Scientific and Cultural Organization (UNESCO), the Secretariat of the UNCBD, the Centro American Commission for Environm...

New sucker-footed bat discovered in Madagascar

... be cleared by associated subsistence agricultural activities and to provide wood energy for urban zones. The island, which is found off the eastern coast of Africa, remains one of the most critically threatened areas in the world, in terms of biodiversity. Madagascar has a higher level of endemism (with plants...

Reading hidden intentions in the human brain

...cution of the task, it was possible to decode from activities in two regions of the prefrontal cortex which of the two actions (addition or subtraction) individuals had chosen to pursue. Different patterns of activity were seen during actual execution of the task, showing that regionally distinct neural substra...

Radiation therapy combo cures prostate cancer long-term

...ealthy tissue and helps patients return to regular activities sooner than surgery."...

Columbia scientists determine 3-dimensional structure of cell's 'fuel gauge'

...known as ATP, AMPK directs cells toward "anabolic" activities like storing the extra energy as fat. When ATP is low, AMPK turns off anabolic activities, and activates "catabolic" functions, like burning fat to make energy. AMPK provides an especially promising drug target for people with type 2 diabetes. T...

Soft-cell approach cuts animal tests

...he scientific community. Predicting the biological activities of toxic chemicals in humans by using animal data always poses uncertainty due to differences between animals and humans. In a series of published experiments, the UNSW team has demonstrated the feasibility of their in vitro technique for: ...

How trees manage water in arid environments

...ship between water availability and photosynthetic activities of the vegetation. This paper is the first step in that process, and it illustrates the seasonal characteristics of the forest vegetation-water relationship as observed during a three-year period during which there were extreme drought conditions in ...

Mercury contamination of fish warrants worldwide public warning

...ed 50 million inhabitants of mining regions. These activities alone contribute more than 10 percent of the mercury in Earth's atmosphere attributable to human activities today. Little is known about the behavior of mercury in marine ecosystems and methylmercury in mar...

'Marathon mice' elucidate little-known muscle type

...nd in the calf of the leg--perform slow but steady activities such as maintaining posture. At the other extreme, muscles such as the quadriceps typically perform intense and rapid activities. To fulfill these varied roles, muscles vary in their proportion of "slow-twitch" muscle fibers (types I and IIA), id...

Woman's Day and For Womens of Science

...ed 50 million inhabitants of mining regions. These activities alone contribute more than 10 percent of the mercury in Earth's atmosphere attributable to human activities today. Little is known about the behavior of mercury in marine ecosystems and methylmercury in mar...

New player in commitment to life as a fat cell

...sm, published by Cell Press. Drugs that block some activities of the enzyme, known as xanthine oxidoreductase (XOR), might therefore offer a novel antiobesity therapy designed to fight fat before it even forms, the researchers said. Known for its role in producing the metabolic byproduct uric acid, XOR had ear...

Imaging pinpoints brain regions that 'see the future'

...tion, planning and monitoring, the spark for these activities may well be the very process of envisioning oneself in a specific future event, an activity based within and reliant upon the same neurally distributed network used to retrieve autobiographical memories. Second, within this neural network, patter...

Female chimps keep the bullies at bay

... chimpanzees do not synchronize their reproductive activities which reduces the opportunities for less-desirable males to coerce them into mating. The findings have just been published online in Springer's journal Behavioral Ecology and Sociobiology. Most studies of primates to date have suggested that female...

Scripps research study shows humans and plants share common regulatory pathway

...nce in plants through regulation of expression and activities of some R proteins Although there is a significant genetic crossover between plants and mammals, very little is known about this common human-plant regulatory pathway. Ulevitch speculated that certain protein regulatory structures might exist in b...

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