News tagged with mechanism
Cyclogyro Flying Robot Improves its Angles of Attack
Jan 22, 2009 |
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(PhysOrg.com) -- In the past few decades, researchers have been investigating a variety of flying machines. Most studies have focused on improving the flying performance of standard flying mechanisms, rather ...
Fibre may keep asthma, diabetes at bay, study finds
Oct 28, 2009 |
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Insoluble dietary fibre, or roughage, not only keeps you regular, say Australian scientists, it also plays a vital role in the immune system, keeping certain diseases at bay.
Like humans, monkeys fall into the 'uncanny valley'
Oct 13, 2009 |
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(PhysOrg.com) -- Princeton University researchers have come up with a new twist on the mysterious visual phenomenon experienced by humans known as the "uncanny valley." The scientists have found that monkeys ...
Genetic conflict in fish led to evolution of new sex chromosomes
Oct 01, 2009 |
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University of Maryland biologists have genetically mapped the sex chromosomes of several species of cichlid (pronounced "sick-lid") fish from Lake Malawi, East Africa, and identified a mechanism by which new ...
Researchers discover a new antibacterial lead
Sep 27, 2009 |
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(PhysOrg.com) -- Antibiotic resistance has been a significant problem for hospitals and health-care facilities for more than a decade. But despite the need for new treatment options, there have been only two ...
Migrating monarch butterflies 'nose' their way to Mexico
Sep 24, 2009 |
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The annual migration of monarch butterflies from across eastern North America to a specific grove of fir trees in Mexico has long fascinated scientists who have sought to understand just how these delicate ...
Schizophrenia gene linked with abnormal neurogenesis in adult and postnatal brain
Medicine & Health / Neuroscience
Sep 23, 2009 |
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Scientists now have a better understanding of a perplexing gene that is associated with susceptibility for a wide spectrum of severely debilitating mental illnesses. Two independent research studies published by Cell Press ...
Genetic sex determination let ancient species adapt to ocean life
Sep 16, 2009 |
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(PhysOrg.com) -- A new analysis of extinct sea creatures suggests that the transition from egg-laying to live-born young opened up evolutionary pathways that allowed these ancient species to adapt to and thrive ...
Scientists discover potential new drug delivery system
Aug 25, 2009 |
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(PhysOrg.com) -- Scientists at UC Santa Barbara have discovered a potential new drug delivery system. The finding is a biological mechanism for delivery of nanoparticles into tissue. The results are published ...
Misfolded proteins: The fundamental problem is aging
Aug 24, 2009 |
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Proteins are essential for all biological activities and the health of the cell. Misfolded and damaged proteins spell trouble and are common to all human neurodegenerative diseases and many other age-associated diseases. ...
First human gene implicated in regulating length of human sleep
Aug 13, 2009 |
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Scientists have discovered the first gene involved in regulating the optimal length of human sleep, offering a window into a key aspect of slumber, an enigmatic phenomenon that is critical to human physical and mental health.
Small evolutionary shifts make big impacts, study finds
May 20, 2009 |
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(PhysOrg.com) -- In the developing fetus, cell growth follows a very specific schedule. In the eye's retina, for example, cones -- which help distinguish color during the day -- develop before the more light-sensitive ...
Genes that influence start of menstruation identified for first time
May 17, 2009 |
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Researchers from the Peninsula Medical School, along with collaborators from research institutions across Europe and the United States, have for the first time identified two genes that are involved in determining when girls ...
Birds can dance, really
Apr 30, 2009 |
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Researchers at Harvard University have found that humans aren't the only ones who can groove to a beat -- some other species can dance, too. This capability was previously believed to be specific to humans. ...
'You will give birth in pain': Neanderthals too
Other Sciences / Archaeology & Fossils
Apr 21, 2009 |
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(PhysOrg.com) -- Researchers from the University of California at Davis (USA) and the Max Planck Institute for Evolutionary Anthropology in Leipzig (Germany) present a virtual reconstruction of a female Neanderthal ...
