Tag: "indirect" at biology news

Math discovery may aid resource management

...ural populations in more realistic terms, consider indirect interactions and really provide a much more accurate view of how natural systems will work. Well be far more accurate with our predictions and can use this approach in the new field of adaptive management, improving our natural resource management ap...

MacKinnon lab's newest picture tells action potential story

...k of analyzing visual art would shrink to partial, indirect descriptions that fail in conveying the object's t...d scientists had for years only a sketch, based on indirect experiments, for what the voltage-dependent channel actually looked like." In 1998, MacKinnon and hi...

GenoMyc binding

...rgets, complicated by such issues as direct versus indirect interactions and physiological relevance. These two papers represent a significant advance in the effort to identify DNA sequences that bind Myc. Using completely different experimental approaches and biological systems, both research teams arrived ...

Cholestyramine shows protective effects for marine toxin poisoning

...er the next several decades. HABs have direct and indirect impacts on fisheries resources, local coastal economies, as well as public health and perception. HABs can cause human illness and death, alter marine habitats, adversely impact fish and other marine organisms, as well as close many coastal businesse...

50 Arctic lakes show dramatic effects of climate warming

...can, in essence, reconstruct the past through this indirect technique, we're filling in gaps in our knowledge and finding answers to many ecological and environmental questions that have great significance for the future." PLEASE NOTE: Colour graphics of the modern and pre-industrial diatoms are available ...

Study of monkey species that fights off AIDS may lead to new treatments for humans

...n of the direct effects of HIV replication and the indirect effects brought about by the immune system dysregu...lation," he said. "In contrast, the absence of the indirect effects in the SIV infected mangabeys can at least be partially attributed to a reduced activation o...

Crash in male saiga antelope numbers drives species closer to extinction

...g them from getting pregnant. "Once you get these indirect effects causing population decline through fecundity you can not be sure whether the population will recover. "At present, the saiga population is halving each year and the species could soon be lost. Action must be taken now to provide a sustainabl...

Bacterial infections alter allergic response

...th for and against the hygiene hypothesis has been indirect and observational. The National Jewish research team sought more direct evidence using a mouse model of asthma and the bacterium M. pneumoniae, a common cause of community-acquired pneumonia. In their study, Martin and his colleagues inoculated mice ...

New research tools are opening the 'black box' of coastal ecosystems

...ces among populations provide a general method for indirect monitoring of species dispersal, both inside and outside reserves. Computer-based mapping tools make it possible to place layers of ecosystem information into an accessible geographic context, using global information satellite (GIS) databases. By ...

Arthropods of Tropical Forests

... techniques (canopy access systems) now complement indirect techniques such as chemical canopy fogging with insecticides. The new book is bigger, but treats a narrower field, focusing exclusively on canopy organisms from tropical habitats. Acutely conscious of the still gaping holes in our knowledge of the w...

Study may direct solutions for air pollution disease affecting agricultural, industrial workers

...nhancement in airway reactivity; and the late or indirect phase (four weeks after the exposure), which was characterized by fibrotic airway remodeling and hyperresponsiveness. Finally, the results showed that inhibition of neutrophil recruitment in the early phase mitigates the chronic inflammatory respon...

First genetic findings in children and adolescents with obsessive-compulsive disorders

... onset OCD and may represent either a direct or an indirect influence on development of this disorder. The results also indicate that molecular genetic studies should consider age of onset when investigating disease etiology and risk factors....

Researchers identify cause of aggressive childhood cancer

...oteins in the nucleus of the cell. "There has been indirect evidence that some types of chromatin remodeling complexes might play a role in cancer," said Roberts. In a key finding reported in 1998, French researchers showed that mutations that inactivated SNF5 were present in tissue samples from children wi...

Study shows first direct evidence that transplanted muscle cells can take root in damaged hearts

...sessed the safety of the cell injection, and found indirect evidence of scar tissue regeneration. But it could not examine the hearts directly. In both arms of the study, a sample of cells was removed from the quadriceps muscle, and treated with enzymes to isolate the satellite cells. They were then grown in ...

UCLA study shows water reclamation could become an important source of future water supplies

...its efforts, particularly for the process known as indirect potable reclamation. Public agencies -- particularly the Los Angeles County Sanitation Districts and the Orange County Water District -- received an "A" for showing leadership and wisely directing public investment into water reclamation. The public ...

MRI technique lets researchers directly compare monkey and human brains

...he brain. It also provides an indirect measure of neuronal activity ...ucose. What were doing is an indirect measurement of the human brains electrical activity, said Wim Vanduffel, the re...

Study: Genome-wide scanning unravels complex birth defect

...istinct pathways, although some evidence exists of indirect interaction between proteins related to RET and EDNRB. Both RET and EDNRB proteins are involved in connecting nerves to the digestive tract during embryo development....

Breast cancer gene repairs damaged DNA

...his colleagues, BRCA2 was believed to play only an indirect regulatory role in DNA repair. "BRCA2 had been previously implicated in the control of homologous recombination, although its precise role in this process was unknown," said HHMI investigator Stephen J. Elledge , who is at Baylor College of Medicine...

Smallpox vaccines

...to test this directly. But so far, says Henderson, indirect studies suggest that cultured NYCBH vaccine is the same as the original....

Viruses help strep bacteria turn deadly

...t they have not been extensively studied for their indirect contributions to infectious diseases. Now that we have shown their importance to bacterial evolution, there is much we need to know about them."...

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