Tag: "harsh" at biology news

Lactose intolerance linked to ancestral environment

...igest milk after infancy. "The implication is that harsh climates and dangerous diseases negatively impact dairy herding and geographically restrict the availability of milk, and that humans have physiologically adapted to that," said evolutionary biologist Paul Sherman, a professor of neurobiology and beh...

Study in Royal Society journal on heritability of female orgasm

...t infants. This study shows that early exposure to harsh and inconsistent maternal care is associated with greater interest in infants among rhesus macaque juvenile females. These effects of early experience appear to be mediated by long-term alterations in physiological systems that regulate arousability ...

Breakthrough: Scientists create world's tiniest organic particles

...tter such as genes or drugs. The new method avoids harsh treatment but also allows formation of uniform particles in any shape designers choose spheres, rods, cones, trapezoidal solids, etc. -- and essentially any composition, he said. The relatively simple process, which he and colleagues are calling Par...

Costly breeding programs for endangered species pay off

...allowed the MAI populations to better adapt to the harsh conditions in the wild." Meffert chose to conduct her experiments on common houseflies because they breed every few weeks. This model system allowed her to simulate several years of breeding for endangered species that breed only once or twice per ye...

New research on temporal autocorrelation and metapopulations comprised of coupled sinks

... biology how some species seem able to persist in harsh environments with low average growth rates....

Genetically modified maize not found in southern Mexico

...the mountains the climate and soils can be pretty harsh there," she said. "Also, the influx of transgenic seeds may have declined if farmers became aware of the issue and took extra precautions with their seed stocks." The Mexican government might approve the cultivation of GM maize at some point in the f...

Freeze-dried mats of microbes awaken in Antarctic streambed, says U. of Colorado study

... The results showed the resilience of life in the harsh polar environment, where temperatures are below freezing for most of the year and glacial melt water flows for only five to 12 weeks annually, said Professor Diane McKnight of CU-Boulder's Institute of Arctic and Alpine Research. Such research on li...

Carnegie Mellon rover heads to Atacama Desert for final mission in 3-year search for life

... pushing the limits of technology to study life in harsh environments. Zo's abilities represent the culmination of three years of work to determine the optimum design, software and instrumentation for a robot that can autonomously investigate different habitats. During the 2004 field season, Zo exceeded s...

New lab research may help those deafened by immune system attack

...uld help them, or if they can be spared the drugs' harsh side effects. It may also expand the definition of the condition, known as autoimmune sensorineural hearing loss or AISNHL, and help more people get a firm diagnosis of what's causing their mysterious hearing loss. In the August issue of the Archives...

Story tips from the Department of Energy's Oak Ridge National Laboratory, September 2005

...rameters. For instance, some seals must operate in harsh environments and must maintain their integrity for many years, while others may be in fairly benign locations or might be changed often. Oak Ridge National Laboratory researchers have developed Seal Selection Tool software that provides administrator...

Biotech cotton 8: Bugs 0

...copa, Mohave, Pima, Pinal and Yuma. "Moreover, the harsh insecticides used to control pink bollworm resulte...ect control tactics replaced a large amount of the harsh pesticides used on cotton crops. Spraying less chemical insecticides means more beneficial insects s...

International Council for Science launches International Polar Year 2007-8, an historical endeavour

...n show the world why what happens in these remote, harsh locations is intimately connected to our past, present and our future and, by doing so, they can also attract a new generation of scientists to the field of polar research." It has been almost a half-century since ICSU last initiated a global polar ...

New European legislation impacts on both cancer trials and drug approval

...n, the Clinical Trials Directive has resulted in a harsh drop-down in the number of new investigator-initiated clinical trials and instead is promoting primarily the conduct of nationwide research projects," noted Dr Markus Hartmann from the European Consulting & Contracting in Oncology, Germany. "In paedi...

A salty tale: New bacterial genome sequenced from ancient salterns

...ts are increasingly learning how microbes adapt to harsh environments," remarks Mongodin, first author on the PNAS study, funded by a grant from the National Science Foundation and United States Department of Agriculture. "S. ruber illustrates that even in a really extreme environment, bacteria can do what...

Bacteria that cause tooth decay able to survive without important biochemical pathway

...ain why strains of the bacteria can survive in the harsh acidic environment they create in the mouth. "We ... bacterium - becomes unable to protect itself from harsh environmental conditions. In the human mouth, its natural environment, it is typically S. mutans th...

Fish gene sheds light on human skin color variation

...skin color without damaging it by tanning or using harsh chemical lighteners. The findings will be published as the cover story in the December 16 edition of Science magazine. The genetic determination of human skin color is one of biology's enduring mysteries. Previous studies on pigmentation have ide...

Sun protection for plants

...said, "Plants use a range of processes to adapt to harsh and potentially damaging environmental conditions. We are beginning to understand the mechanisms plants have at a molecular level to prevent damage from excess sunlight. We hope that this knowledge could be used to improve photosynthesis rates, and t...

New 'molecular switch' protein protects the heart from major cardiovascular damage

... the modified protein helps the heart respond to a harsh intracellular environment by boosting its performance during periods of stress. "By making this single histidine substitution in the adult form of troponin I, we retain hormonal responsiveness and provide protection from acidosis in the same molecule...

Finding life on Mars and outer space begins by examining Earth's inner space

... Mono, an excellent analog for Mars." "Despite the harsh conditions, Mono Lake is a highly productive biological environment, basically a microbial 'factory' that supports many other species. For example, Mono Lake is one of the most popular migratory bird stops in the West, all sustained by microbes. An...

Ironing out new details of tuberculosis infection

...mmune cells called macrophages. To survive in this harsh environment, mycobacteria, like many other types of bacteria, need iron to carry out life-sustaining functions, such as creating proteins and synthesizing nucleotides to form DNA. However, free iron is not easily found in an intracellular environment...

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(Date:10/16/2014)... 16, 2014 NXT-ID, Inc. (NASDAQ: ... biometric authentication company focused on the growing mobile commerce ... including Wocket™, the Smart Wallet, at the 13 th ... a leading global conference on the intersection of technology ... Mark Anderson , founder and publisher of the Strategic ...
(Date:10/15/2014)... The book ,Models of Life, is a non-traditional biophysics ... itself. The book is a journey of discovery into ... of life and biological regulation. It is about how ... strategic communication between the billions of cells in an ... the relationships between principles, which can be found on ...
(Date:10/15/2014)... Researchers have linked increased resistance to bacterial pneumonia in ... sex hormone estrogen. , Females are naturally more resistant ... of scientists has shown that increased resistance to bacterial ... nitric oxide synthase 3 (NOS3). They also show that ... the female sex hormone estrogen. , The team, lead ...
Breaking Biology News(10 mins):NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3New book about life as seen from physics 2
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