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Here is your customized PHYSorg.com Newsletter for October 14, 2011:
Spotlight Stories Headlines
- 'Smart DC' cuts electricity costs by using direct current electricity (w/ video)- Nanobelts support manipulation of light
- Frustration inspires new form of graphene
- Meka's robot head makes eyes at next-wave users (w/ video)
- Forest and savanna can switch quickly
- Magnetic attraction: NIST microchip demonstrates concept of 'MRAM for biomolecules'
- Endangered species? Should cheap phosphorus be first on an elemental 'Red List?'
- Differing structures underlie differing brain rhythms in healthy and ill
- Cancer patients suffer PTSD years after diagnosis
- Dutch court refuses to ban iPhone, iPad sales
- Risk of esophageal cancer in patients with Barrett's esophagus
- Why Einstein was wrong about being wrong
- Apple's iMessage texting service takes aim at wireless carriers
- Researchers discover material with graphene-like properties
- Packing in six times more storage density with the help of table salt
Space & Earth news
UChicago launches search for distant worlds
(PhysOrg.com) -- Since 1995, scientists have discovered approximately 600 planets around other stars, including 50 planets last month alone, and one that orbits two stars, like Tatooine in Star Wars. Detection of the first Earthlike planet remains elusive, however, and now the University of Chicago joins the search with the addition of Jacob Bean and Daniel Fabrycky to the faculty.
New study finds 400,000 farmers in southern Africa using 'fertilizer trees' to improve food security
On a continent battered by weather extremes, famine and record food prices, new research released today from the World Agroforestry Centre documents an exciting new trend in which hundreds of thousands of poor farmers in Southern Africa are now significantly boosting yields and incomes simply by using fast growing trees and shrubs to naturally fertilize their fields.
Greenpeace launches Rainbow Warrior III
Greenpeace launched its latest weapon in the fight against environmental destruction Friday -- a multi-million-euro purpose-built campaign ship named Rainbow Warrior III.
Observatory seeks a new name for transformed scientific icon
(PhysOrg.com) -- The most famous radio telescope in the world is about to get a new name. The Very Large Array, known around the world, isn't what it used to be. The iconic radio telescope, known around the world through movies, documentaries, music videos, newspaper and magazine articles, advertisements, textbooks, and thousands of scientific papers, is nearing the completion of an amazing transformation. More than a decade of effort has replaced the VLA's original, 1970s-vintage electronics with modern, state-of-the-art equipment.
Ecosystem management must consider human impact too
For a long time, ecologists have believed—and others accepted—that when it comes to whether a land mass is covered with forests or grasslands, climate controls the show. They thought that the amount of rain, temperature and frequency of wildfires determine whether the ground will be covered with trees or grasses.
Soyuz ready with Galileo satellites for milestone launch
International space cooperation will be highlighted in a historic event on 20 October: the launch of Europe’s first Galileo navigation satellites on Russia’s first Soyuz rocket to depart from Europe’s Spaceport in French Guiana.
Earth from Space: Volcanic Canaries
(PhysOrg.com) -- The subtropical Canary Islands off Africa’s west coast are pictured in this Envisat image.
NASA to test new solar sail technology
Solar sails, much like anti-matter and ion engines appear at first glance to only exist in science fiction. Many technologies from science fiction however, become science fact.
Russian ship finds tsunami debris where scientists predicted
Ever since the great Japan tsunami on March 11 washed millions of tons of debris into the Pacific, scientists at the International Pacific Research Center, University of Hawaii at Manoa, have been trying to track the trajectory of this debris that can threaten small ships and coastlines. For nearly half a year, Senior Researcher Nikolai Maximenko and Computer Scientific Programmer Jan Hafner had only their state-of-the-art – but still untested – computer model of currents to speculate where the debris might end up. Now valuable sightings of the debris are reported from places where the model predicted.
Sierra Nevada's Dream Chaser to conduct drop test next summer
It looks as though the efforts to get commercial space taxis off the ground – is succeeding. Sierra Nevada Corporation’s (SNC) "Dream Chaser" space plane is slated to conduct its first test flight as early as next summer. SNC is one of four companies that have had proposals selected by NASA under the Commercial Crew Development Program – 02 (CCDev2).
Daring Russian sample return mission to Martian moon Phobos aims for November liftoff
In just over three weeks’ time, Russia plans to launch a bold mission to Mars whose objective, if successful , is to land on the Martian Moon Phobos and return a cargo of precious soil samples back to Earth about three years later.
NASA books 1st flight from New Mexico spaceport
(AP) -- NASA has booked a charter suborbital flight from Virgin Galactic's spaceport operations in southern New Mexico.
Stockholm Convention scientists seek ban on chemical
Scientists at the Stockholm Convention, which interdicts dangerous chemicals, said on Friday they will recommend the banning of a flame retardant commonly used in polystyrene.
Delta smelt population on the rise, survey finds
The imperiled fish that has been at the center of California's water wars may be at its highest numbers in a decade, judging by the results of a recent survey.
Turning slash piles into soil benefit
Your next bite of an organically grown apple may hold within it a tiny bit of a Washington forest.
Galaxy mergers not the trigger for most black hole feeding frenzies
(PhysOrg.com) -- A survey of distant galaxies using the Hubble Space Telescope has put another nail in the coffin of the theory that galaxy mergers are the main trigger for turning quiescent supermassive black holes into radiation-blasting active galactic nuclei.
Endangered species? Should cheap phosphorus be first on an elemental 'Red List?'
Should the periodic table bear a warning label in the 21st century or be revised with a lesson about elemental supply and demand? If so, that lesson could start with one element considered a staple of life – but growing endangered, like the Asiatic dhole – phosphorus.
Forest and savanna can switch quickly
(PhysOrg.com) -- Two recent studies have found that environmental changes can bring previously stable forests and grasslands to tipping points that produce sudden large-scale and sometimes irreversible changes in which forest can become savanna and vice versa. These findings challenge previous assumptions that changes to natural systems occur continuously and smoothly.
Technology news
New York Times offers journalists buyouts
The New York Times said Thursday it would offer buyouts to more than a dozen journalists as it seeks to cut costs in an "uncertain" economy.
NPD: US retail video game sales fell in September
(AP) -- U.S. retail sales of video game hardware, software and accessories dipped 4 percent to $1.13 billion in September, according to market researcher NPD Group. Sales of the games themselves grew somewhat, but this was overshadowed by lower sales of game consoles and accessories.
Researchers work to take the errors out of the cloud
Cloud computing, which taps the resources of a network of remote computers, offers tremendous potential for storing and processing vast amounts of data quickly and cheaply. The catch: As cloud computing applications become larger, the potential for errors also grows. So a Cornell team of computer scientists plans to develop methods for improving the reliability of cloud computing, testing their work in a piece of the real cloud.
Turning Arizona's dry heat into a comfy chill
An innovative solar-thermal heating and cooling system installed on top of the UA's Student Recreation Center is expected to harvest almost 200 million kilowatt hours of solar energy per year – enough to power more than 180 households.
Apple co-founder Wozniak Siri-ously into iPhone 4S
Steve Wozniak stepped triumphantly from his local Apple store on Friday caressing a new iPhone 4S and promptly told the gadget's robotic assistant to ring up his wife.
The future of airport passport control
Digital security specialists, major European electronics makers, and experts in biometrics worked together to make passport control at airports faster. The technology also could have broader applications on the way our identity documents are design and on the way we access public services.
Google+ tops 40 million users
Google co-founder and chief executive Larry Page on Thursday said that its online social networking challenge to Facebook is growing fast and has topped 40 million users.
Apple fails to widen Australia Samsung ban
A court Friday turned down Apple's bid to have Samsung give it advance warning of any new product launches in Australia until its patent infringement case against the Korean firm goes to a full hearing.
Hulu no longer for sale, owners say
After months of being courted by technology giants and TV signal providers, online video service Hulu is no longer for sale, its media company owners said Thursday.
World's biggest Apple store draws big iPhone crowd
Hundreds of fans including one who had camped out for 10 days whooped for joy as the new iPhone 4S went on sale Friday at the Apple store in London, the US firm's largest outlet on the planet.
Sony Ericsson profits down in 3rd quarter
Mobile phone maker Sony Ericsson posted a break-even third quarter Friday - blaming the drop in earnings on higher taxes and lower margins - and announced that it is shifting its entire portfolio to smartphones next year.
China mulls microblog limits before party meeting
(AP) -- China's Communist Party is preparing for its biggest policy meeting of the year by ratcheting up pressure on social media sites that have fast become forums for information and public expression beyond government control.
BlackBerry blackout is new threat to brand
The longest BlackBerry outage in many years left customers outraged this week, threatening to cost the granddaddy of all smartphones more business when it's already struggling to keep up in a crowded marketplace.
Google insists newspapers not losing out to Internet
Internet search engine Google insisted on Friday it was not stealing business from the print media even if it has become an increasingly important source of news on the Web.
SAP profits up strongly in third quarter
German software giant SAP said Friday its profits more than doubled in the third quarter thanks to strong sales and lower legal costs related to litigation with arch-rival Oracle.
Buyers camp out for iPhone, though crowds smaller
Apple's latest iPhone arrived to an enthusiastic response from buyers camped out at stores Friday, but many observers noted the crowds were smaller than those that had gathered for previous releases.
Infineon says crisis hit earnings in fourth quarter
German computer chip giant Infineon said Friday that high economic uncertainty had hurt its fourth-quarter earnings and would weigh on sales in the coming months as well.
India's Tata to launch Nano car in Bangladesh
India's Tata Nano, billed as the world's cheapest car, will go on sale in Bangladesh on Saturday -- but with a price tag nearly triple what it is at home.
Google to kill Buzz, focus social efforts on Plus
Google is getting ready to press the mute button on its much-maligned Buzz service.
Eurocopter demonstrates new emergency backup electric motor for helicopters
(PhysOrg.com) -- Normally, when a helicopter loses power in flight due to engine failure, the pilot reverts to using a technique called autorotation to avoid crashing. What happens is the rotors keep spinning automatically due to the air rushing past as the aircraft descends, which prevents the aircraft from picking up speed as it descends, eventually leading to a reasonably safe landing. The problem though, is that controlling such a descent is quite difficult due to the lack of power adjustments to the angle of the rotors, which can lead to pitching. In a sense it’s much like the difference between regular and power brakes. The pilot is forced to rely on a lot of muscle power. To make things easier for pilots, and thus safer for all concerned, Eurocopter, the biggest maker of helicopters in the world, has come up with a way to allow a pilot to more easily maintain control of the rotors while descending and landing using an electric motor add-on.
Dutch court refuses to ban iPhone, iPad sales
A Dutch court refused Friday to grant Samsung an injunction banning Apple from selling iPhones and iPad tablets in the Netherlands, dealing the South Korean electronics giant a defeat in its global patent battle with its American rival.
Apple's iMessage texting service takes aim at wireless carriers
With its latest operating system update, Apple Inc. is poised to strike a blow to wireless carriers by making free texting more ubiquitous.
'Smart DC' cuts electricity costs by using direct current electricity (w/ video)
(PhysOrg.com) -- As the use of computers and mobile electronics continues to rise, so does the energy wasted by the devices’ AC/DC adaptors when converting AC from wall sockets to DC for the devices. The London-based company Moixa Technology estimates that more than 1 trillion kwh of global energy is currently wasted every year due to inefficient inverters and AC/DC adaptors. Moixa’s solution is a Smart DC network that uses electricity from window- and wall-based solar panels or off-peak grid electricity stored in batteries to power low-power devices and lights at any time. By minimizing the need for AC/DC conversion, the company predicts that the Smart DC system could decrease users’ overall electricity costs by up to 30%.
Medicine & Health news
Women with polycystic ovary syndrome at increased risk of pregnancy complications
Women with polycystic ovary syndrome are more likely to have problems with pregnancy regardless of whether they are undergoing fertility treatment, claims new research published in the British Medical Journal today.
Surgery for epilepsy leads to around half of patients being seizure-free after 10 years
Around half of patients remain seizure free 10 years after undergoing surgery for epilepsy. However, there is scope for further improvement in presurgical assessment and surgical treatment of people with chronic epilepsy. The findings are reported in an Article published in this week's surgery special issue of The Lancet, written by Jane de Tisi, Dr Gail S Bel, and Professor John Duncan, National Hospital for Neurosurgery, and Imperial College London, and colleagues.
Better ways to predict kidney disease risk for African Americans
Compared to European Americans, African Americans are four to five times more likely to develop kidney failure. Also, family members of African Americans with kidney failure have an increased risk of developing kidney failure, which suggests that genetics may play a role in this skewed risk between races. Previous studies identified variants in a gene called APOL1 that may play a role. The APOL1 gene creates a protein that is a component of HDL, or good cholesterol.
Pediatric emergency department visits for psychiatric care on the rise
Pediatric patients, primarily those who are underinsured (either without insurance or receiving Medicaid), are increasingly receiving psychiatric care in hospital emergency departments (EDs), according to an abstract presented Friday, Oct. 14, at the American Academy of Pediatrics (AAP) National Conference and Exhibition in Boston.
Pulse oximetry: A viable screening tool for infants with suspected congenital heart disease
Pulse oximetry, a non-invasive procedure that measures the amount of oxygen in the bloodstream, can be used as a screening tool to detect critical congenital heart disease (CCHD) in infants, and is more readily available than echocardiography, the current gold standard for CCHD diagnosis, according to a new research abstract presented Friday, Oct. 14, at the American Academy of Pediatrics (AAP) National Conference and Exhibition (NCE) in Boston.
Minority children less likely to receive CT scans following head trauma
African-American and Hispanic children are less likely to receive a cranial computed tomography (CT) scan in an emergency department (ED) following minor head trauma than white children, according to an abstract presented Friday, Oct. 14 at the American Academy of Pediatrics (AAP) National Conference and Exhibition in Boston.
Parents who go online for pediatric health information are open to doctors' website recommendations
While parents commonly use the Internet to learn about pediatric health problems, little is known about how often they seek out this information, and how they use it prior to seeking medical care.
Nicaragua swine flu outbreak infects 32
At least 32 people have been infected in a flare-up of the H1N1 swine flu virus in Nicaragua over the last week, according to the health ministry.
Study shows how general practice can substantially improve care for women experiencing domestic violence
One in four women in the UK have experienced physical or sexual abuse from their husband or a partner. A programme of training and support for GPs, practice nurses and GP receptionists can substantially increase the identification of women experiencing domestic violence and their referral to specialist advocacy services, according to new research from the University of Bristol, published today in The Lancet.
Women's heart disease tied to small blood vessels
Heart disease affects men and women in different ways. In women, symptoms of burgeoning heart disease are often more insidious, but when a heart attack strikes, it is more lethal than it is in men. Roughly 25 percent of men will die within a year of their first heart attack, but among women, 38 percent will die. Women are twice as likely as men to have a second heart attack within 6 years of their first one, and women are twice as likely as men to die after bypass surgery.
Undocumented immigrants in O.C. use fewer health services than rest of population
(Medical Xpress) -- According to a new UC Irvine study, undocumented immigrants living in Orange County utilized fewer medical services in 2005 than did documented immigrants and citizens of Latino and non-Latino white backgrounds in the region. The discrepancy was found to be, in large part, attributable to a lack of health insurance among undocumented immigrants.
'Sponge on a string' trial launched to try and prevent deadly oesophageal cancer
(Medical Xpress) -- Cancer Research UK has launched a large multi-centre trial to test a new device for detecting Barrett’s oesophagus – a condition that puts sufferers at increased risk of developing cancer of the oesophagus, one of the most deadly cancers.
Heart health impacts wellbeing of patients with chronic obstructive pulmonary disease
A new study has found that processes that control heart rate play an important role in the quality of life experienced by patients with chronic obstructive pulmonary disease (COPD). The study, which was published in the journal Respirology, indicates that heart-related treatments may improve the wellbeing of some individuals with COPD.
Nurses boost well-being for cancer survivors
The Queensland University of Technology (QUT ) School of Nursing and Midwifery, in Brisbane, Australia, has designed a program to assist cancer survivors in self-managing their health and emotional concerns.
Breast tenderness in women getting combo hormone therapy associated with increase in breast density
Post-menopausal women who experience new onset breast tenderness after starting combination hormone therapy may have an increased risk of breast cancer compared to women who don't experience breast tenderness, a study by researchers at UCLA's Jonsson Comprehensive Cancer Center has shown. One reason for this may be that their breasts are becoming more dense.
Exercise before and during early pregnancy increases two beneficial proteins for mothers-to-be
Although exercise is generally considered to be a good thing for people with high blood pressure, it has traditionally been considered too risky for women who are also pregnant. Some studies suggest that exercise has benefits such as decreasing the risk of women developing preeclampsia, a condition that raises blood pressure to dangerously high levels but how this might happen has remained unknown. New research using an animal model falls into the "pro-exercise" camp: It suggests that exercise before conception and in the early stages of pregnancy may protect a mother-to-be by stimulating the expression of two proteins thought to play a role in blood vessel health.
Chronic pain? Doctor knows how to fight it
There are several "gifts" we start receiving after age 50. Unfortunately, one of them could be chronic pain.
Link between alcohol and harm is stronger in Estonia, Latvia, Lithuania, and Sweden than in Italy
Research clearly shows a dose-response relationship between alcohol and health issues such as cirrhosis of the liver. More recent research has shown linkages between greater drinking and greater problems such as interpersonal violence. A study of the impact that the larger, cultural context of drinking in several European countries may have on the relationship between drinking and harm has found that this relationship is stronger in the Baltic countries and Sweden than Italy.
Heavy drinking undergraduates who are impulsive, aggressive may be at high risk for alcohol problems
In a national survey of undergraduates, roughly six percent met criteria for current alcohol dependence (AD), and approximately 31 percent met criteria for current alcohol abuse. While many undergraduates "mature out" of heavy alcohol use after graduation, a minority will continue to abuse alcohol and be at risk for alcohol-related problems. This study investigated which undergraduates are most likely to engage in high-risk drinking, using alcohol-use disorder (AUD) criteria and binge-drinking endorsement as identifiers.
US man gets double hand transplant
A US man spoke Friday of his happiness at the prospect of touching his young grandchildren for the first time, following a rare double hand transplant at a Boston hospital.
'Never married' men still more likely to die from cancer
It is known that the unmarried are in general more likely to die than their married counterparts and there is some indication that the divide is in fact getting worse. New research published in BioMed Central's open access journal BMC Public Health looks at the changes in cancer survival over the past 40 years and show that the difference in mortality between the married and never married, especially between married and never married men, has also increased.
Urgent need for research in the diagnosis of miscarriage
The current ultrasound test to diagnose miscarriage in early pregnancy is based on limited evidence, raising questions about its reliability, according to a new paper published by researchers at Queen Mary, University of London.
One in six mobile phones in UK is contaminated with fecal bacteria, researchers found
One in six mobile phones in Britain is contaminated with faecal matter, according to new research released ahead of Global Handwashing Day.
Women, men and the bedroom
(Medical Xpress) -- In the racy television hit show, Sex and the City, Carrie, one of the main characters tells her best girlfriends that "Men who are too good looking are never good in bed because they never had to be." This is just one of the many gender stereotypes that audiences were exposed to in this show. The show challenged many stereotypes about sex and gender and refrained from the gender caricatures that typify so much television fare. Now, a new review article written by University of Michigan psychology professor Terri Conley and her team of graduate students – Amy Moors, Jes Matsick, Ali Ziegler and Brandon Valentine – examines how such gender stereotypes fueled the sexual revolution started by women in the 60s, now carried on proudly by Carrie and her gang.
Another clue to how obesity works
(Medical Xpress) -- The effects of obesity - both on our bodies and on the health budget - are well known, and now, scientists are getting closer to understanding how the disease progresses, providing clues for future treatments.
South Asians and Europeans react differently to common drugs
(Medical Xpress) -- A University of Sydney PhD student has discovered the different diets and lifestyles of South Asians compared to Europeans could lead to the two groups requiring very different doses of medicines commonly used to treat illnesses such as depression and psychosis.
Gastrointestinal inflammation prevented by protein sorting factor found in cells lining the gut
The gastrointestinal tract is lined with intestinal epithelial cells (IECs) that maintain gut health by keeping bacteria and pro-inflammatory immune cells from infiltrating gut tissues. Now, a team of researchers in Japan has shown that a protein in these cells, which is responsible for sorting many proteins to particular portions of the IEC surface, plays a key role in IEC modulation of gut inflammation.
There is no such thing as identical where twins are concerned
Identical twins have identical genomes, but that is where it stops. There are subtle differences in their personalities, how they look, how they act and in their susceptibility to disease. How can this be?
Gender differences in blood pressure appears as early as adolescence
The female hormone estrogen is known to offer protection for the heart, but obesity may be taking away that edge in adolescent girls. New research from the University of California at Merced finds that although obesity does not help teens of either gender, it has a greater impact on girls' blood pressure than it does on boys'.
MRIs could become powerful tools for monitoring cholesteral therapy
MRI scanning could become a powerful new tool for assessing how well cholesterol drugs are working, according to Loyola University Health System cardiologist Binh An P. Phan, MD.
Mammography is 'imperfect' test
For women today, turning 40 often brings birthday cake and candles. But it also brings a question: Should I get a mammogram?
Raising awareness about Sjogren's syndrome
Oakland, Calif., physician Sarah Schafer is a trim woman with robust color in her cheeks, bright blue eyes and a pleasant smile. She is the outward picture of health - an image that doesn't begin to tell the inside story.
Imaging technology might help doctors determine best treatment for Crohn's disease patients
It's difficult for doctors to tell whether a patient with Crohn's disease has intestinal fibrosis, which requires surgery, or inflammation, which can be treated with medicine. A new imaging method might make that task easier, according to a U-M-led study.
Genetically influenced responses to alcohol affect brain activation both with and without alcohol
A low level of response (LR) to alcohol is a genetically influenced characteristic, or phenotype, that reflects at least in part a low brain response to alcohol, and carries significant risk for the later development of alcoholism. This study addressed the physiological underpinnings of a low and high LR, finding significant differences in brain activation during a cognitive task, possibly reflecting differences in the amount of brain activity used to deal with a cognitive challenge.
Polycystic ovary syndrome and cardiovascular disease
One in 15 women of childbearing age is diagnosed with a disorder commonly referred to as polycystic ovary syndrome (PCOS). The condition is one of the most common causes of women not ovulating and thus causes difficulty in conceiving. Fertility is not the only health consequence these women face, however. PCOS has been associated with an increased risk for cardiovascular disease (CVD), the leading killer of women and men alike.
Psychopathic killers: Computerized text analysis uncovers the word patterns of a predator
As words can be the soul's window, scientists are learning to peer through it: Computerized text analysis shows that psychopathic killers make identifiable word choices – beyond conscious control – when talking about their crimes.
Alcohol consumption greatly increases serious injury risk for heavy and moderate drinkers
Researchers know that alcohol impairs coordination and the ability to perceive and respond to hazards, and that hangovers impair neurocognitive performance and psychomotor vigilance. This study closely examined alcohol-related injuries admitted to hospital, finding that alcohol greatly increases risk for serious injury.
Monitoring how T cells respond to HIV
One of the obstacles to developing an effective AIDS vaccine is the difficulty in measuring how well a potential vaccine primes the body to defend itself against HIV.
Brain scans reveal drugs' effects on attention
(Medical Xpress) -- Scientists have developed a way to evaluate new treatments for some forms of attention deficit disorder.
Differing structures underlie differing brain rhythms in healthy and ill
Virtual brains modeling epilepsy and schizophrenia display less complexity among functional connections, and other differences compared to healthy brain models, researchers at Case Western Reserve University School of Medicine report.
Cancer patients suffer PTSD years after diagnosis
(Medical Xpress) -- Even after surviving cancer treatment, a new study published in the Journal of Clinical Oncology reports that many cancer patients suffer from post-traumatic stress disorder, or PTSD, that can worsen as the years go by.
Risk of esophageal cancer in patients with Barrett's esophagus
(Medical Xpress) -- A new study published in the New England Journal of Medicine reveals that the risk of patients with Barrett’s esophagus developing adenocarcinoma of the esophagus are not as high as once originally thought.
Biology news
Wildlife groups sue for more protection of turtles
(AP) -- Several wildlife protection groups are suing the federal agency that regulates fishing in U.S. waters, claiming the government isn't doing enough to protect endangered sea turtles from drowning in shrimp nets.
How a molecular switch activates the anti-viral innate immune response
When a thief breaks into a bank vault, sensors are activated and the alarm is raised. Cells have their own early-warning system for intruders, and scientists at the European Molecular Biology Laboratory (EMBL) in Grenoble, France, have discovered how a particular protein sounds that alarm when it detects invading viruses. The study, published today in Cell, is a key development in our understanding of the innate immune response, shedding light on how cells rapidly respond to a wide range of viruses including influenza, rabies and hepatitis.
Cell survival protein research reveals surprise structure
Researchers from the Walter and Eliza Hall Institute have found a structural surprise in a type of protein that encourages cell survival, raising interesting questions about how the proteins function to influence programmed cell death.
New research shows how viruses use 'good' gut bacteria to bypass immune system
(PhysOrg.com) -- Two new studies demonstrate how viruses, such as the one responsible for polio, use good bacteria in the human (or mouse) gut to evade detection by the immune system.
Mental time-travel in birds
(PhysOrg.com) -- Certain types of birds may track army ant swarms using sophisticated memory and the ability to plan for the future.
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