News tagged with mechanism

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Seeing how evolutionary mechanisms yield biological diversity

Biology / Evolution

created Dec 22, 2009 | popularity not rated yet | comments 0

An international team of scientists has discovered how changes in both gene expression and gene sequence led to the diversity of visual systems in African cichlid fish.


Mystery solved: Scientists now know how smallpox kills

Biology / Cell & Microbiology

created Dec 22, 2009 | popularity 5 / 5 (10) | comments 0

A team of researchers working in a high containment laboratory at the Centers for Disease Control and Prevention in Atlanta, GA, have solved a fundamental mystery about smallpox that has puzzled scientists long after the ...


Making New Enzymes to Engineer Plants for Biofuel Production

Making New Enzymes to Engineer Plants for Biofuel Production

Chemistry / Biochemistry

created Dec 21, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- Brookhaven scientists have created a new enzyme with the potential to interfere with a key cell-wall component in plants, possibly leading to plants that are easier to "digest" and convert ...


How the daisy got its spots… and why

How the daisy got its spots... and why

Biology / Plants & Animals

created Dec 18, 2009 | popularity 4.5 / 5 (2) | comments 0

Dark spots on flower petals are common across many angiosperm plant families and occur on flowers such as some lilies, orchids, and daisies. Much research has been done on the physiological and behavioral ...


Discovery of new gene called Brd2 that regulates obesity and diabetes

Chemistry / Biochemistry

created Dec 15, 2009 | popularity 4.5 / 5 (2) | comments 0

The chance discovery of a genetic mutation that makes mice enormously fat but protects them from diabetes has given researchers at Boston University School of Medicine, USA, new insights into the cellular mechanisms that ...


More than fish bait: Worms unlock secrets to new epilepsy treatments

Medicine & Health / Genetics

created Dec 09, 2009 | popularity 4 / 5 (1) | comments 0

A team of scientists from The University of Alabama used worms to reel in information that they hope will lead to a greater understanding of cellular mechanisms that may be exploited to treat epilepsy. In a new research report ...


Superior offspring without genetic modification

Biology / Cell & Microbiology

created Dec 08, 2009 | popularity 4.5 / 5 (2) | comments 0

We don't always turn out like our parents. Sometimes we become even better. How this happens is the subject of a new research project at the University of Gothenburg.


Study finds new relationship between gene duplication and alternative splicing in plants

Study finds new relationship between gene duplication and alternative splicing in plants

Biology / Biotechnology

created Dec 07, 2009 | popularity not rated yet | comments 0

University of Georgia scientists looking to understand the genetic mechanisms of plant defense and growth have found for the first time in plants an inverse relationship between gene duplication and alternative ...


No change in brain tumor incidence during a time when cell phone usage increased

Medicine & Health / Cancer

created Dec 03, 2009 | popularity not rated yet | comments 0

There was no substantial change in brain tumor incidence among adults 5 to 10 years after cell phone usage sharply increased, according to a new brief communication published online December 3 in the Journal of the National Ca ...


New source discovered for the generation of nerve cells in the brain

Medicine & Health / Neuroscience

created Dec 01, 2009 | popularity 4.7 / 5 (6) | comments 0

The research group of Professor Magdalena Gotz of Helmholtz Zentrum Munchen and Ludwig-Maximilians-Universitat Munich (Germany) has made a significant advance in understanding regeneration processes in the brain. The researchers ...


Heavy metal paradox could point toward new therapy for Lou Gehrig's disease

Medicine & Health / Neuroscience

created Nov 30, 2009 | popularity 4.5 / 5 (2) | comments 0

New discoveries have been made about how an elevated level of lead, which is a neurotoxic heavy metal, can slow the progression of amyotrophic lateral sclerosis, or Lou Gehrig's disease - findings that could point the way ...


Predicting the fate of underground carbon

Physics / General Physics

created Nov 23, 2009 | popularity not rated yet | comments 0

A team of researchers at the Massachusetts Institute of Technology has developed a new modeling methodology for determining the capacity and assessing the risks of leakage of potential underground carbon-dioxide reservoirs.


Possible link studied between childhood abuse and early cellular aging

Possible link studied between childhood abuse and early cellular aging

Medicine & Health / Psychology & Psychiatry

created Nov 20, 2009 | popularity 3.7 / 5 (3) | comments 0

Children who suffer physical or emotional abuse may be faced with accelerated cellular aging as adults, according to new research from Butler Hospital and Brown University.


Research spawns new discoveries showing how crops survive drought

Research spawns new discoveries showing how crops survive drought

Biology / Cell & Microbiology

created Nov 18, 2009 | popularity 5 / 5 (4) | comments 0

(PhysOrg.com) -- Breakthrough research done earlier this year by a plant cell biologist at the University of California, Riverside has greatly accelerated scientists' knowledge on how plants and crops can ...


New brain findings on dyslexic children

Medicine & Health / Neuroscience

created Nov 11, 2009 | popularity 4.3 / 5 (10) | comments 0

The vast majority of school-aged children can focus on the voice of a teacher amid the cacophony of the typical classroom thanks to a brain that automatically focuses on relevant, predictable and repeating auditory information, ...