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Multi-hop wireless networks for efficient data transmission
World’s First Handmade Cloned Transgenic Sheep born in China
New coating for hip implants could prevent premature failure
History is Key Factor in Plant Disease, Study Finds
Marijuana Use Higher in Young Adult Smokers than Previously Reported
DNA origami puts a smart lid on solid-state nanopore sensors
New Research Suggests PIP Implant Failures Significantly Higher Than Previously Thought
Vision Restroration by Photoreceptor Transplantation in Mice
Football helmet sensors record impact location and magnitude to demystify concussion in athletes
Claudin-14 Gene Implicated in Kidney Stone
How Selective Hearing Works In the Brain
F(ab’)2-gzk antidote for cocaine overdose developed by Scripps scientists
Tapping the tetrahertz gap for cell phones to see through walls
Naturopathy decreases blood sugar in people with type 2 diabetes
Jellyfish population increasing in world’s coastal ecosystems

Multi-hop wireless networks for efficient data transmission

Posted: 19 Apr 2012 06:50 AM PDT

Data transmission by networks have limits in the amount of data they can transmit. North Carolina State University researchers developed an efficient data transmission approach over multi-hop wireless networks. This approach can increase the efficiency by 20 to 80 percent.

World’s First Handmade Cloned Transgenic Sheep born in China

Posted: 19 Apr 2012 06:29 AM PDT

Chinese scientists from BGI, the world’s largest genomics organization, together with the Institute of Genetics and Developmental Biology, Chinese Academy of Sciences (CAS), and Shihezi University, Xinjiang province, made a significant breakthrough in animal cloning. The world’s first transgenic sheep produced with a simplified technique, handmade cloning, was successfully born at 12:16pm, March 26, 2012, in Xinjiang Uygur Autonomous Region, China. The project was also supported by the Animal Science Academy of Xinjiang.

New coating for hip implants could prevent premature failure

Posted: 19 Apr 2012 05:26 AM PDT

Every year, more than a million Americans receive an artificial hip or knee prosthesis. Such implants are designed to last many years, but in about 17 percent of patients who receive a total joint replacement, the implant eventually loosens and has to be replaced early, which can cause dangerous complications for elderly patients.

To help minimize these burdensome operations, a team of MIT chemical engineers has developed a new coating for implants that could help them better adhere to the patient’s bone, preventing premature failure.

History is Key Factor in Plant Disease, Study Finds

Posted: 19 Apr 2012 04:48 AM PDT

The virulence of plant-borne diseases depends on not just the particular strain of a pathogen, but on where the pathogen has been before landing in its host, according to a new study from researchers at the University of California and the United States Department of Agriculture’s Agricultural Research Service (USDA ARS).

Marijuana Use Higher in Young Adult Smokers than Previously Reported

Posted: 19 Apr 2012 04:39 AM PDT

Half of young adult tobacco smokers also have smoked marijuana in the last 30 days, according to a recent Facebook-based survey conducted by UCSF researchers, indicating a greater prevalence of marijuana and tobacco co-use among smokers age 18-25 than previously reported.

Other recent studies have shown that approximately 35 percent of young adult tobacco smokers used marijuana within the last month.

DNA origami puts a smart lid on solid-state nanopore sensors

Posted: 19 Apr 2012 04:32 AM PDT

The latest advance in solid-state nanopore sensors – devices that are made with standard tools of the semiconductor industry yet can offer single-molecule sensitivity for label-free protein screening – expands their bag of tricks through bionanotechnology. Researchers at the Technische Universität München have enhanced the capabilities of solid-state nanopores by fitting them with cover plates made of DNA. The results are published in Angewandte Chemie International Edition.

New Research Suggests PIP Implant Failures Significantly Higher Than Previously Thought

Posted: 19 Apr 2012 04:25 AM PDT

New research published in the Journal of Plastic, Reconstructive and Aesthetic Surgery suggests that the failure rate of silicone breast implants manufactured by Poly Implant Prosthèse (PIP) could be as high as 33.8%.

Patients who received PIP implants either for primary or secondary breast augmentation, between January 2000 and August 2005, were studied to determine implant failure rate and other complications. Results found that 7 to 12 years after implantation the failure rate for PIP implants is in the region of 15.9–33.8%.

Vision Restroration by Photoreceptor Transplantation in Mice

Posted: 19 Apr 2012 04:05 AM PDT

Scientists at the University College of London were able to restore the vision of mice by transplanting photoreceptors. Photoreceptors are the light sensitive nerve cells that line the back of the eyes. The photoreceptors were transplanted into the eyes of the visually impaired mice. This study could help people with degenerative eye diseases to restore sight.

Football helmet sensors record impact location and magnitude to demystify concussion in athletes

Posted: 18 Apr 2012 05:36 PM PDT

Research at the University of Michigan using football helmet sensors to measure impact shows that an average high school player takes roughly 650 impacts, with a maximum of more than 2,000 per football season. A concussion occurs at roughly 90 to 100 g-force.

Claudin-14 Gene Implicated in Kidney Stone

Posted: 18 Apr 2012 05:18 PM PDT

A new study shows that alterations in the activity of a gene called claudin-14 may influence the development of kidney stones. The protein product of claudin 14 gene, called claudin 14 protein, provides building blocks for tight junctions between cells. Kidney stones strike an estimated 1 million Americans each year, and those who have experienced the excruciating pain say it is among the worst known to man.

How Selective Hearing Works In the Brain

Posted: 18 Apr 2012 12:17 PM PDT

The longstanding mystery of how selective hearing works — how people can tune in to a single speaker while tuning out their crowded, noisy environs — is solved this week in the journal Nature by two scientists from the University of California, San Francisco (UCSF).

F(ab’)2-gzk antidote for cocaine overdose developed by Scripps scientists

Posted: 18 Apr 2012 11:50 AM PDT

Scripps scientists developed a therapeutic potential of human antibody against cocaine. A stripped-down version of GNCgzk antibody, F(ab’)2-gzk, which contains only the antibody’s cocaine-binding segments significantly reducing coccain overdose signs such as seizures and mortality.

Tapping the tetrahertz gap for cell phones to see through walls

Posted: 18 Apr 2012 10:52 AM PDT

Researchers at UT Dallas has merged microchip technology and previously untapped portion of electromagentic spectrum, the tetrahertz band to design consumer electronic devices. They have designed an imager chip that could turn mobile phones into devices that can see through walls, wood, plastics, paper and other objects.

The team’s research linked two scientific advances. One involves tapping into an unused range in the electromagnetic spectrum. The other is a new microchip technology.

Naturopathy decreases blood sugar in people with type 2 diabetes

Posted: 18 Apr 2012 10:32 AM PDT

A new joint study by Group Health Research Institute and Bastyr University Research Institute found that type 2 diabetes patients who received naturopathic care (as an adjunct to conventional care) had lower blood-sugar levels, better eating and exercise habits, improved moods, and a stronger sense of control over their condition than did patients receiving only conventional care.

Jellyfish population increasing in world’s coastal ecosystems

Posted: 18 Apr 2012 10:02 AM PDT

According to a study done by University of British Columbia on jellyfish abundance, researchers found that the global population is on the rise in the world's coastal ecosystems. The increase in jellyfish population is found in 62 percent of the regions including East Asia, the Black Sea, the Mediterranean, the Northeast U.S. Shelf, Hawaii, and Antarctica.