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Here is your customized PHYSorg.com Newsletter for June 17, 2011:
Spotlight Stories Headlines
- Nano-LEDs emit full visible spectrum of light- Ancient sewer excavation sheds light on the Roman diet
- Team reports scalable fabrication of self-aligned graphene transistors, circuits
- Packing the ions: Discovery boosts supercapacitor energy storage
- New data suggests the universe is clumpier than thought
- High-precision robots available in kit form
- High-maintenance mallards
- From religion to politics: why it matters if we think someone is watching
- Pan-STARRS telescope spots new distant comet
- Shipping sensor goes to work for climate science
- Brain iron as an early predictor of Alzheimer's disease
- Size matters -- in virulent fungal spores -- and suggests ways to stop a killer
- Superconductivity's third side unmasked
- Brain surgeons analyze traumatic brain injuries in comic books
- Kilobots bring us one step closer to a robot swarm
Space & Earth news
A golden age of exoplanet discovery
An exciting meeting yesterday, Wednesday 15 June 2011, held at the Institute of Physics (IOP) in partnership with the Royal Astronomical Society (RAS), saw leading experts explain how far the field of exoplanet detection has advanced since the first confirmed detection in the early ‘90s.
NASA reveals new batch of space program artifacts
NASA is inviting eligible education institutions, museums and other organizations to examine and request space program artifacts online. The items represent significant human spaceflight technologies, processes and accomplishments from NASA's past and present space exploration programs.
Penn State expert determined to find life on Earth-like planets
Thanks to popular Hollywood films like "E.T.," "Avatar" and "Super 8," life on other planets seems highly conceivable to people who have considered the idea that we are not alone in the universe. Jim Kasting, distinguished professor of geosciences in Penn State's College of Earth and Mineral Sciences and an expert in atmospheric evolution, is one person who considers it a lot.
Cont-Trak offers reliable container tracking via satellite
Whether at sea, on rail, stacked or stored, shipping containers can now be tracked worldwide via satellite with Cont-Trak, developed through ESA’s telecommunications program.
Vietnam starts joint Agent Orange cleanup with US
(AP) -- Vietnam on Friday started the first phase of a joint plan with former enemy the United States to clean up environmental damage leftover from the chemical defoliant Agent Orange, a lasting legacy from the Vietnam War.
Conflicting policies on flying under ash confuse
(AP) -- If you had hoped to fly Qantas between Australia and New Zealand, you were out of luck. The national carrier grounded planes after a plume of ash from a Chilean volcano moved over the southern Pacific.
Radio waves help track Pacific currents 24/7
(PhysOrg.com) -- Along the West Coast of the United States, a network of antennas is sending radio waves out to sea 24 hours a day and capturing real-time data about the ocean's currents.
Simulation models offer clarity with regard to energy transition decisions
As a way of eliminating energy-guzzling incandescent light bulbs from our supermarket shelves, a tax on incandescent light bulbs would be just as effective as an outright ban. Subsidising new technology, such as Led lighting, could actually reduce its sales, as this can lead to a relatively large number of people buying a light with teething problems, giving the new technology a bad name. These results emerged from the simulation models which PhD student Emile Chappin of Delft University of Technology (the Netherlands) developed in relation to energy transition. Chappin obtained his doctorate from TU Delft on 16 June. His most important conclusion is that the energy transition process can be controlled and simulation models can provide insight into the possible consequences of choices made by the government, businesses and consumers.
James Webb space telescope completes first round of cryogenic mirror test
The first six of 18 segments that will form NASA's James Webb Space Telescope’s primary mirror for space observations completed final cryogenic testing this week. The ten week test series included two tests cycles where the mirrors were chilled down to -379 degrees Fahrenheit, then back to ambient temperature to ensure the mirrors respond as expected to the extreme temperatures of space.
Despite budget stress, US space ties strong: NASA
Relations between the United States and its partners in space remain strong, despite tighter budgets and concerns about costs and delays in building the space station, NASA chief Charles Bolden said on Friday.
Ocean's harmful low-oxygen zones growing, are sensitive to small changes in climate
(PhysOrg.com) -- Fluctuations in climate can drastically affect the habitability of marine ecosystems, according to a new study by UCLA scientists that examined the expansion and contraction of low-oxygen zones in the ocean.
Phobos slips past Jupiter (w/ video)
(PhysOrg.com) -- Earlier this month, ESA's Mars Express performed a special manoeuvre to observe an unusual alignment of Jupiter and the martian moon Phobos. The impressive images have now been processed into a movie of this rare event.
European space freighter poised for suicide plunge
A European freighter will be destroyed by atmospheric burn-up next week after completing its supply mission to mankind's orbital outpost, the European Space Agency (ESA) said on Friday.
Pan-STARRS telescope spots new distant comet
(PhysOrg.com) -- Astronomers at the University of Hawaii at Manoa have discovered a new comet that they expect will be visible to the naked eye in early 2013.
Technology news
New Harry Potter project spellbinds cyberspace
Harry Potter fans were abuzz with excitement on Thursday after creator JK Rowling launched a mysterious web site counting down to the announcement of a new project.
World Cup Twitter ban for All Blacks
All Blacks players have been banned from communicating directly with fans via Twitter during this year's World Cup, amid fears the microblogging website will prove a distraction during the tournament.
Japan's Fujitsu sees post-quake profit growth
Japan's Fujitsu on Friday forecast net profit to rise 8.9 percent this year, expecting demand for IT products and services to recover after the March earthquake and tsunami.
Eco-driving: Ready for prime time?
The time may finally be right to sell Americans on eco-driving, according to a group of transportation experts from four University of California campuses as well as representatives from industry and government who attended an all-day conference on May 18.
US Senate votes down ethanol subsidies
The US Senate voted Thursday to end a $6 billion subsidy for ethanol in a move that appeared largely symbolic but sends a message about the growing unease on support for the biofuel made mostly from corn.
Gamers griping handheld controls
Even though motion-sensing videogame controllers are all the rage, sometimes a player prefers a Batarang for bashing bad guys.
Japan to fine or jail computer virus creators
Japan will punish people who create or wilfully spread computer viruses with fines and prison terms of up to three years under a new law enacted by parliament.
US startup challenges Swiss Post on home turf
A US firm that specializes in verifying email delivery is expanding into Europe and challenging the Swiss Post, which it has accused of brazen patent infringement.
Digital pickpockets target Bitcoin virtual currency
Hackers are targeting virtual currency Bitcoin, penetrating computers and swiping their digital wallets, according to computer security firm Symantec.
Inspired by insect intelligence
Monash University researchers, as part of an international collaboration, are using insect intelligence to develop new wireless sensor networks that could transform how we monitor changes to the environment, buildings and infrastructure, and patient health.
RIM down over 20 percent on Wall Street
Shares in Research in Motion fell sharply on Wall Street on Friday after the BlackBerry maker lowered its outlook for the year and said it would be cutting jobs.
As more devices get networked, firms that build or connect them must ensure security
Telecom equipment maker Ericsson has famously predicted there will be 50 billion devices connected to data networks by 2020.
Microsoft: a danger for Skype users?
Long before the iPhone, the Sidekick was the cool mobile phone. It was to the iPhone and Android what Paris Hilton is to Kim Kardashian - version 1.0.
Lulz hackers say attacks are entertainment
Computer hackers who have hit the websites of the CIA, US Senate, Sony and others during a month-long rampage said Friday that they were staging the attacks for their own entertainment.
Microsoft Kinect makes moves on computers
Microsoft on Thursday began letting software developers imbue computers with voice and motion-sensing technology from its Kinect controller for the Xbox 360 videogame console.
Shipping sensor goes to work for climate science
A device the size of a deck of playing cards that can track temperature, humidity, light and barometric pressure is moving from the shipping world to the realm of research to help develop a better understanding of how the climate is changing.
Google's Android ambitions go beyond mobile
Andy Rubin, Google's top mobile-phone executive, likes to talk about everything being "Android-ized." Android has become the top smartphone operating system in the United States, but Google's ambitions for it go well beyond tablet computers and smartphones, even beyond the mobile Web.
Experts ponder era of big data
The era of big data has arrived. Last year, consumers and businesses around the world are estimated to have stored more than 13 exabytes of information on PCs, laptops and other devices - the equivalent of more than 52,000 times the information housed in the Library of Congress. An exabyte is 1 followed by 18 zeros, or a billion gigabytes.
Firefox looks to use HTML5 to run PDFs in the web browser
(PhysOrg.com) -- In the current generation of web browsers if you want to view a PDF in your web browser you are going to need the help of a plug-in to do it. While that may not sound like a major roadblock a growing number of users have expressed concerns over the security of using third party plug-ins on their systems, since they can also potentially be used to run malicious code.
Medicine & Health news
Counting the cost of cold winters: Emergency treatment for falls on snow and ice
During the winter of 2009-2010 the average temperature for the UK was 1.6 degrees centigrade (°C), making it the coldest recorded winter in the last 30 years. Using winter data from 2005 to 2010, new research published in BioMed Central's open access journal Environmental Health demonstrates an inverse relationship between temperature and the number of falls on snow and ice, which result in emergency admission to hospital, and looks at the cost of these falls.
Sharing anonymized hospital data prevents violence
Combining information from hospitals and police can prevent violence and make communities safer, according to a study published in the British Medical Journal today.
American Cancer Society report finds continued progress in reducing cancer mortality
A steady reduction in overall cancer death rates translates to the avoidance of about 898,000 deaths from cancer between 1990 and 2007, according to the latest statistics from the American Cancer Society. However, the report, Cancer Statistics 2011, and its companion consumer publication Cancer Facts & Figures 2011 find that progress has not benefitted all segments of the population equally. A special section of the report finds cancer death rates for individuals with the least education are more than twice those of the most educated and that closing that gap could have prevented 37% -- or 60,370 -- of the premature cancer deaths that occurred in 2007 in people ages 25-64 years.
New Lyme disease test improves treatment for horses, dogs
Romping through summer fields seems like a harmless pleasure for dogs, horses and humans alike. But just one bite from the wrong tick can rob an animal of that pastime. The bacteria Borrelia burgdorferi catch rides with certain species of ticks and can cause Lyme disease in animals the ticks bite. Catching the disease early is paramount because it becomes progressively harder to fight as the bacteria conduct guerilla warfare from hiding places in the joints, nervous tissues and organs of their hosts.
New prostate cancer biomarkers move closer to clinical use
Conway Fellow, Professor William Watson and Professor John Fitzpatrick, UCD School of Medicine and Medical Science and Mater Misericordiae University Hospital recently received a translational research award for the validation of a panel of serum biomarkers to inform surgical intervention for prostate cancer.
New kidney filtration system could simplify dialysis
UCSF researchers have designed a model filtration system that could offer a new approach to treating patients suffering from end-stage renal disease, potentially removing the need for a clinic-based dialysis process altogether.
UK drops DNA tests for refugees and asylum seekers
(AP) -- Britain has dropped a controversial policy of using DNA tests to identify the nationality of African refugees and asylum seekers after criticism that there is no scientific merit to the practice.
Cancer 'freezing' technique lessens pain, cuts hospital stay
(Medical Xpress) -- When considering treatment options for kidney tumors, preserving any kidney function is preferable to removing the entire organ: Cardiovascular health improves, hypertension is less frequent and re-hospitalization rates decrease.
World Health Organization releases latest Dengue Bulletin
The ten studies in this special issue document the substantial and growing burden of dengue in the Americas, Africa and Asia, and the burden of a chikungunya outbreak in India.
MD's gather at AMA meeting amid reform uncertainty
(AP) -- Dr. Cecil Wilson is an avid sailor, a hobby that has served him well in navigating the nation's largest doctors' group through murky, uncharted waters.
Bust dust to toxin-proofing children
Bust the dust -- that’s one of five key tips featured in the first national brochure on protecting children from toxic substances, produced with input from a Simon Fraser University health sciences professor.
Is 'positive aging' possible?
Positive ageing is explored in a series of papers emanating from five different countries in the latest issue of the e-journal of Applied Psychology, released today.
Learning lessons from an HIV cure
For doctors confronting the AIDS epidemic, past ambitions always boiled down to two main goals: prevention, or finding ways to protect people not yet exposed to HIV, through vaccines, safe sex education or other means; and treatment, or discovering effective drugs and providing them to people with HIV/AIDS, helping them live longer.
FDA panel unanimously backs Regeneron eye drug
(AP) -- A panel of federal health experts voted unanimously in favor of a new eye drug from Regeneron, bringing the company one step closer to competing against a blockbuster Roche drug that currently dominates the market.
Google-backed 23andMe hits major milestone: 100,000 users in DNA database
Mountain View, Calif., genomics startup 23andMe just hit a milestone: As of Wednesday, 100,000 people have uploaded their genetic code to the 4-year-old company's database.
After 55 years, surgery restores sight
After being hit in the eye by a stone, a detached retina left a man blind in his right eye. Despite surgery to remove a cataract when the man was 23, which temporarily restored light perception, the patient was completely blind in that eye. Doctors at The New York Eye and Ear Infirmary have reported a case, published in BioMed Central's open access Journal of Medical Case Reports, describing how this patient had functional vision restored 55 years after the childhood accident which left him blind.
Hospitalizing children with normal CT scans after blunt head trauma is not necessary
A large, national multi-center study of thousands of children taken to emergency departments with minor blunt head trauma has found that most of those with normal computed tomography (CT) scans do not require hospitalization for further observation.
International team works out secrets of one of world's most successful patient safety programs
A team of social scientists and medical and nursing researchers in the United States and the United Kingdom has pinpointed how a program, which ran in more than 100 hospital intensive care units in Michigan, dramatically reduced the rates of potentially deadly central line bloodstream infections to become one of the world's most successful patient safety programmes.
Early experience found critical for language development
We know that poor social and physical environments can harm young children's cognitive and behavioral development, and that development often improves in better environments. Now a new study of children living in institutions has found that intervening early can help young children develop language, with those placed in better care by 15 months showing language skills similar to children raised by their biological parents.
Etanercept shows promise for treating dermatomyositis
A multicenter pilot study of etanercept for treatment of dermatomyositis found no major safety concerns and many patients treated with the drug were successfully weaned from steroid therapy. These results are encouraging, but larger studies are needed to further investigate the safety and efficacy of etanercept. Results of this clinical trial are available in Annals of Neurology, a journal published by Wiley-Blackwell on behalf of the American Neurological Association.
Look before you leap: Teens still learning to plan ahead
Although most teens have the knowledge and reasoning ability to make decisions as rationally as adults, their tendency to make much riskier choices suggests that they still lack some key component of wise decision making. Why is this so? Because adolescents may not bother to use those thinking skills before they act. That's the finding of a new study by researchers at Temple University that appears in the journal Child Development.
Cancer death rate gap widens based on education
(AP) -- The gap in cancer death rates between college graduates and those who only went to high school is widening, the American Cancer Society reported Friday.
Can aptitude tests really predict your performance?
(Medical Xpress) -- Colleges, employers, and the military all use aptitude tests to predict how well someone might do. In recent years, some critics of these tests have said there isn’t much difference in performance above a certain level—that, above a certain threshold, everyone is more or less the same. Now, a new study, which will be published in an upcoming issue of Psychological Science, a journal of the Association for Psychological Science, the authors find that this isn’t true. Instead, the higher your score, the better you perform later.
New study highlights perils of snack-filled diet
A high-fat diet can be bad for your health. However, a snack-based "cafeteria"-style diet of highly palatable, energy-dense foods is even worse, according to new research.
The way you relate to your partner can affect your long-term mental and physical health, study shows
The potentially lasting implications of day-to-day couple conflict on physical and mental well-being are revealed in a study published today in the journal Personal Relationships.
Medical debt occurs despite insurance, study shows
Health insurance is not protecting Arizonans from having problems paying medical bills, and having bill problems is keeping families from getting needed medical care and prescription medicines, a new study has found.
Elderly breast cancer patients less likely to get surgery
(PhysOrg.com) -- University of Manchester researchers, working with colleagues in York, Leeds and Hull, looked at the records of more than 23,000 women with breast cancer diagnosed in the West Midlands, Yorkshire and North East of England between 1997 and 2005 to investigate whether women aged over 70 in the UK are less likely to have surgery because of other illnesses.
Low fertility in Europe -- is there still reason to worry?
The post-war trend of falling birth rates has been reversed across Europe, according to a new study. However, despite an increasing emphasis on family and fertility policies in Europe, this recent development involves social, cultural and economic factors more than individual policy interventions.
Discovery of a new mechanism of gene control that is associated with cancer
Scientists at Memorial Sloan-Kettering Cancer Center in New York and at IRB Barcelona reveal the mechanism of action of a protein that is essential for life and is associated with disease.
France investigates 2 new suspected E. coli cases
(AP) -- French authorities are investigating two new suspected cases of E. coli linked to hamburger patties that have already sickened seven children, the health minister said Friday.
Scientists achieve breakthrough in growth hormone research
Researchers in the School of Biomedical Sciences at The University of Queensland (UQ) have made a ground-breaking discovery in the study of growth hormone.
More evidence vitamin D boosts immune response
Laboratory-grown gingival cells treated with vitamin D boosted their production of an endogenous antibiotic, and killed more bacteria than untreated cells, according to a paper in the June 2011 issue of the journal Infection and Immunity. The research suggests that vitamin D can help protect the gums from bacterial infections that lead to gingivitis and periodontitis. Periodontitis affects up to 50 percent of the US population, is a major cause of tooth loss, and can also contribute to heart disease. Most Americans are deficient in vitamin D.
Transcription factor regulates protein that dampens immune responses
Interleukin-10 (IL-10) is an anti-inflammatory cytokine protein that reduces immune responses and staves off autoimmune disease. Now, a research team led by Masato Kubo at the RIKEN Research Center for Allergy and Immunology, Yokohama, has identified a transcription factor called E4 promoter-binding protein (E4BP4) that is responsible for driving the expression of IL-10 in multiple types of immune cells.
US Medicaid drug lists cost more, deliver less
The U.S. Medicaid program is likely paying far more than necessary for medications and not offering patients the most effective ones available, by ignoring international evidence-based lists of safe and effective medications, according to a new study by researchers at University of California, San Francisco.
A better way to remember
Scientists and educators alike have long known that cramming is not an effective way to remember things. With their latest findings, researchers at the RIKEN Brain Science Institute in Japan, studying eye movement response in trained mice, have elucidated the neurological mechanism explaining why this is so. Published in the Journal of Neuroscience, their results suggest that protein synthesis in the cerebellum plays a key role in memory consolidation, shedding light on the fundamental neurological processes governing how we remember.
University of Louisville surgeons perform first prosthetic bypass graft with patient's stem cells at point-of-care
The first three patients to undergo an investigational surgical procedure for peripheral vascular disease that involves the patient's own stem cells continue to do well, reports the University of Louisville surgeon who is the principal investigator.
Restoring memory, repairing damaged brains
Scientists have developed a way to turn memories on and off -- literally with the flip of a switch.
Unpicking the grammar of genes
(Medical Xpress) -- The MHC on the short arm of chromosome 6 is the most gene-dense region of our DNA with around 230 genes all crammed into this stretch of our genome.
From religion to politics: why it matters if we think someone is watching
(Medical Xpress) -- People are more likely to condemn the bad behaviour of others when they sense someone else may be watching, research by a PhD student in the Department of Philosophy at the University of Sydney shows.
Brain iron as an early predictor of Alzheimer's disease
Early and correct diagnosis of Alzheimer’s disease (AD) is important for reasons that go beyond treatment. These include more time to make critical life decisions, planning for future care, and maximizing the safety of the person with Alzheimer's disease and their family. New scientific information relevant to this pernicious disease has been obtained by researchers utilizing the U. S. Department of Energy Office of Science’s Advanced Photon Source (APS) at Argonne National Laboratory and National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory, and published in the journal NeuroImage. This work points to the use of elevated brain iron content, already observed in late-stage AD, as a potential tool for early diagnosis. Since the disease is usually diagnosed only in later stages after cognitive symptoms appear and treatment may not be effective, a method for early detection would be a major breakthrough in fighting this debilitating neurological ! illness.
Brain surgeons analyze traumatic brain injuries in comic books
(Medical Xpress) -- Yes, you read that title correctly. In the European Journal of Nuerosurgery, Acta Nuerochirugica, a group of neurosurgery researchers from the Heinrich Heine University of Dusseldorf in Germany have examined the famous French comic series Asterix and noted 704 distinct cases of traumatic brain injury.
Ned Kelly tattoos linked to higher violent deaths and suicides
(Medical Xpress) -- In a paper soon to be published in the Journal of Forensic and Legal Medicine, Professor Roger Byard from Adelaide University showed that sporting a tattoo of Ned Kelly or in reference to him was linked to a higher rate of violent deaths by homicide or suicide.
Biology news
New gene named after famous Scottish vet
Researchers at the University of St Andrews have discovered and named a new potentially cancer-controlling gene after a famous Scottish scientist.
Cholesterol boosts antibiotic resistance in H. pylori
(PhysOrg.com) -- New research suggests that cholesterol boosts resistance in Helicobacter pylori both to many antibiotics and to the endogenous antimicrobial peptide, LL-37. A complete understanding of the pathway of cholesterol uptake might lead to novel strategies thwarting H. pylori by blocking that pathway, says corresponding author David McGee of Louisiana State University. The research is published in the June 2011 issue of the journal Antimicrobial Agents and Chemotherapy.
Madagascar marine resources plundered by international seafood markets
Fish catches in Madagascar over the last half-century are double the official reports, and much of that fish is being caught by unregulated traditional fishers or accessed cheaply by foreign fishing vessels. Seafood exports from Madagascar often end up in a European recipe, but are a recipe for political unrest at home, where two-thirds of the population face hunger.
Imaging cereals for increased crop yields
University of Adelaide computer scientists are developing image-based technology which promises a major boost to the breeding of improved cereal varieties for the harsher environmental conditions expected under climate change.
Indonesia to review dolphin release plan: official
Indonesia said Friday it would consider rehabilitating captive dolphins before releasing them into the wild, after animal welfare activists criticised a plan to dump them directly into the sea.
Nitrogen-fixing bacterial symbiont promises trove of natural products
Soil-dwelling bacteria of the genus Frankia have the potential to produce a multitude of natural products, including antibiotics, herbicides, pigments, anticancer agents, and other useful products, according to Bradley S. Moore of the Scripps Oceanographic Institute, La Jolla, and his collaborators in an article in the June 2011 issue of the journal Applied and Environmental Microbiology.
Could this bacterial predator be harnessed to mop up biofilms?
Some new research on a bacterial predator that feeds on other bacteria may lead to new ammunition against biofilms. The research is published in the June 2011 issue of the Journal of Bacteriology.
Scientists use DNA technique to distinguish sardines from mackerel
Being able to distinguish sardines from horse mackerel has just got a little easier. Researchers in Spain used forensic mitochondrial DNA (deoxyribonucleic acid) species identification techniques to genetically differentiate between the fish, regardless if they are processed or canned. This latest technique will help experts to better monitor the exploitation of fish resources. This study was supported in part by a European Fisheries Fund (EFF) grant. The EFF contributes to the realisation of the Common Fisheries Policy (CFP) objectives, which seek the conservation and sustainable use of marine resources.
Size matters -- in virulent fungal spores -- and suggests ways to stop a killer
Scientists at Duke University Medical Center have found that larger fungal spores can be more lethal. Their findings about two different spore sizes of the fungus Mucor circinelloides, a pathogen that kills half or more of its victims, could help to develop new treatments and fight other types of fungal infections.
Signaling pathway is 'executive software' of airway stem cells
Researchers at Duke University Medical Center have found out how mouse basal cells that line airways "decide" to become one of two types of cells that assist in airway-clearing duties. The findings could help provide new therapies for either blocked or thinned airways.
New DNA analysis thousand times more sensitive
(PhysOrg.com) -- An international team of researchers has developed a new DNA technology which makes it possible to perform reliable analyses on DNA quantities that are a thousand times smaller than was previously the case. The method can be used, for example, to study small quantities of stem cells, starting tumour tissue, parts of plant and animal tissue, and archaeological samples. The team, which includes a researcher from Plant Research International, part of Wageningen UR, is publishing the new method in Nature Methods under the name LinDA.
Not just another brick in the (plant cell) wall
(PhysOrg.com) -- In a new study revealing key steps for controlling plant growth, researchers have shown how the assembly of components of the plant cell wall regulates growth of root hairs. Root hairs are important structures that allow plants to absorb essential nutrients and water from the soil. The research will assist in contributing to the sustainability of Australia’s plant -based industries such as, agriculture, horticulture and forestry.
'Lost' bats found breeding on Scilly
A University of Exeter biologist has discovered a 'lost' species of bat breeding on the Isles of Scilly (UK). A pregnant female brown long-eared bat is the first of its species to be found on the islands for at least 40 years. It was discovered by Dr Fiona Mathews, Senior Lecturer at the University of Exeter, a postgraduate student and a team from the Wiltshire Bat Group.
Key step identified in Legionnaire's disease infection process
(PhysOrg.com) -- NIH researchers have uncovered a key step in the biochemical sequence the bacterium which causes Legionnaire’s disease uses to reproduce inside the cells it infects.
High-maintenance mallards
The shimmery feathers of a male mallard might have a showy quality that appeals to prospective mates, but the water resistance and self-cleaning capabilities of iridescent feathers pale in comparison to those of noniridescent plumage.
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