Tag: "forces" at biology news

UN, industry, others partner to create world standards for e-scrap recycling, harvesting components

...singly scarce elements. Inter-related StEP task forces will help shape government policies worldwide and address issues related to re-design and product life expectancy, re-use and re-cycling, and help build relevant capacity in developing nations. The StEP initiative is the offspring of UNU, the UN En...

2-step process filters evolution of genes of human and chimpanzee

...htly harmful, neutral or beneficial, the selective forces are weak and luck determines their fates. In s...re harshly screenednegatively and positivelyby the forces of evolution. When radical changes occurred, those mutations were far more likely to be eliminat...

Tests to reveal levels of depleted uranium in army personnel

...While DU weapons can reduce casualties amongst the forces using them, there may be long-term risks to the health of those exposed to them, either through shrapnel wounds or inhalation, and risks, also, to the environment. The test was designed to detect after 15 years even a modest exposure to DU, on the ...

Physicists reveal water's secrets in journal Science

... the equations of quantum mechanics describing the forces that water molecules exert on each other," Szalewicz said. "Once these forces are known, one can find motions in an ensemble of water molecules and predict all the properties of ...

Biology professor helps others go with the flow of dam removal

...here such a diverse team of scientists have joined forces to study the costs and benefits of restoration," Marks noted. The NAU team included Marks, hydrologist Abe Springer, an associate professor in geology; geologist Rod Parnell, director of geology; engineer Charlie Schlinger, an associate professor i...

Irish potato famine disease came from South America

.... Researchers from around the globe have joined forces to understand the pathogen and learn what makes the plant destroyer kill. Ristaino is part of a team that sequenced the entire genome of P. infestans recently at the Broad Institute at Massachusetts Institute of Technology in Cambridge in a collabora...

Lessons in wood formation from Arabidopsis

...ckening does not allow the development of shearing forces necessary for the anther to split open, or dehisce. This defect previously was shown to be due to loss of function of the transcription factor MYB26 (Steiner-Lange et al. 2003. Disruption of Arabidopsis thaliana MYB26 results in male sterility due to...

First direct electric link between neurons and light-sensitive nanoparticle films created

...al atoms. Their behavior is controlled by the same forces that shape molecules; they also exhibit the bizarre effects associated with quantum mechanics. Scientists can exploit these characteristics to custom-build new materials "from the bottom up" with characteristics such as compatibility with living cell...

Nanotech promises big things for poor -- but will promises be kept?

... of the poor. But there is still a dangerif market forces are the only dynamicthat small minorities of people in wealthy nations will benefit from nanotechnology breakthroughs in the health sector, while large majorities, mainly in the developing world, will not," noted Dr. Andrew Maynard, chief science adv...

Takeda and Tap to promote Sucampo's Amitiza in the United States

...'s premier gastroenterology and primary care sales forces to help bring AMITIZA to the significant number of adults in the U.S. suffering from chronic idiopathic constipation," said Mark Booth, president of Takeda Pharmaceuticals North America, Inc. "This is a good strategic fit for Takeda as we continue t...

Swimming 'to the left' gets bacteria upstream, and may promote infection

...m in a straight line, but near a surface, opposing forces of flow and bacterial forward motion cause the bacteria to continuously swim to one side to the left." The study determined that swimming "to the left" is a hydrodynamic process that is fundamentally related to the way the cells propel themselves i...

Why is the heart heart-shaped?

...chers propose that a balance of the cells internal forces (through contractility) with external forces (such as blood flow) is necessary to create the cell shapes that generate chamber curvatures. Disrup...

Targeting the adrenal gland could be key strategy against heart failure, Jefferson scientists show

...atory enzyme, they cut the hormone production that forces the heart to pump too hard, leading to heart failure. Such a novel approach targeting the adrenal gland in addition to the heart provides a potential new strategy against heart failure, and could lead to a new class of drugs. The researchers, led...

Orbiter provides new hints of past groundwater flows on Mars

...ur without movement --typically because of tension forces in the rock -- they are called joints.) Organizers of the Mars symposium at the AAAS Annual Meeting note that Mars is the only other planet in the solar system that appears to have once had a habitable climate similar to that of Earth. Recent missi...

Researchers untangle nature of 'regressive evolution' in cavefish

.... Previously, scientists could not determine which forces contributed to regressive evolution in cave-adapted species, and many doubt the role of natural selection in this process. Darwin himself, who famously questioned the role of natural selection in eye loss in cave fishes, said, "As it is difficult to ...

HIV protein enlisted to help kill cancer cells

...ient way to get a messenger into cancer cells that forces them to respond to death signals. And they did it using one of the most sinister pathogens around HIV. "HIV knows how to insert itself into many different types of cells," says senior author William G. Hawkins, M.D., assistant professor of surgery a...

Bats prey on nocturnally migrating songbirds

...into their transcontinental journeys at night; the forces of a skilled, almost silent nocturnal hunter patrolling the infinite dark space await them... ...

Is there a pilot in the insect?

...erceived only vaguely at the outset. These hidden forces underlying animal behavior can then be understood more exactly by permanently shuttling between biology and robotics. These principles have been tried and tested for millions of years, and today they need to be applied to aerospace, because the phas...

Researcher to study astronaut bone loss for space biology agency

...wide pool of applicants. "The loss of mechanical forces on bone in the weightlessness of space dramatically weakens bone," says Long. "The ability of humans to conduct prolonged missions to the moon and Mars will require that the structural integrity of the skeleton be maintained." Astronauts who spend ...

The code of codes -- Scientists discover parallel codes in genes

...ject. "These findings point at possible selection forces that may have shaped the universal genetic code." The genetic code consists of 61 codonstri-nucleotide sequences of DNAthat encode 20 amino acids, the building blocks of proteins. In addition, three codons signal the cellular machinery to stop pro...

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(Date:4/22/2014)... to Asia to coordinate with allies and reconfirm ... the Office of Naval Research (ONR) emphasized today ... an example of strong and growing ties between ... region. , The APTEP program, centered in Hawaii ... development of alternative energy technologies. It takes a ...
(Date:4/22/2014)... French . ... the complete genome and subsequent phylogenetic analysis show that ... that is distinct from strains previously identified in the ... also linked the laboratory confirmed cases with the initial ... virus is a lethal, highly contagious virus for which ...
(Date:4/22/2014)... that exposure to environmental enrichment can induce ... learning and memory. Previous studies have demonstrated ... the superficial layer of the cerebral cortex ... and these neurons exhibit very weak properties ... Whether environmental enrichment has an impact on ...
Breaking Biology News(10 mins):Full power: Alternative energy partnerships flourish in Asia 2Full power: Alternative energy partnerships flourish in Asia 3Inserm and the Institut Pasteur identify a new variant of Ebola virus in Guinea 2
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