A reinvention of agriculture is needed to meet global challenges
2010-10-15
Des Moines, Iowa USA: World renowned scientists speaking at the World Food Prize Borlaug Dialogue have called for a radical transformation in the agriculture sector to cope with climate change, food security and to transition towards sustainability.
Dr Dennis Garrity, Director General of the World Agroforestry Centre and Professor MS Swaminathan, 1987 World Food Prize Laureate and founder of the MS Swaminathan Research Foundation, have teamed up to promote what they call a 'fresh out of the box solution' which is already dramatically improving crop yields while storing ...
I want to see what you see: Babies treat 'social robots' as sentient beings
2010-10-15
Babies are curious about nearly everything, and they're especially interested in what their adult companions are doing. Touch your tummy, they'll touch their own tummies. Wave your hands in the air, they'll wave their own hands. Turn your head to look at a toy, they'll follow your eyes to see what's so exciting.
Curiosity drives their learning. At 18 months old, babies are intensely curious about what makes humans tick. A team of University of Washington researchers is studying how infants tell which entities are "psychological agents" that can think and feel.
Research ...
Key to blood-brain barrier opens way for treating Alzheimer's and stroke
2010-10-15
While the blood-brain barrier (BBB) protects the brain from harmful chemicals occurring naturally in the blood, it also obstructs the transport of drugs to the brain. In an article in Nature scientists at the Swedish medical university Karolinska Institutet now present a potential solution to the problem. The key to the BBB is a cell-type in the blood vessel walls called pericytes, and the researchers hope that their findings will one day contribute to new therapies for diseases like Alzheimer's and stroke.
"Our new results show that the blood-brain barrier is regulated ...
Overseas nurses feel their skills are underused and they aren't valued or respected
2010-10-15
Many overseas nurses have negative experiences of living and working in the UK, particularly when it comes to feeling personally valued and professionally respected, according to the October issue of the Journal of Clinical Nursing.
Researchers from the University of Northampton also found that discrimination and racism still exist in the National Health Service and that the reality of first-world UK nursing is often very different to what overseas nurses expect.
Senior lecturer and nurse Julia Nichols and Professor of Neurophysiology Jackie Campbell carried out ...
Scientists perfect new nanowire technique
2010-10-15
Scientists at the University of Leeds have perfected a new technique that allows them to make molecular nanowires out of thin strips of ring-shaped molecules known as discotic liquid crystals (DLCs).
The findings could be an important step in the development of next generation electronic devices, such as light-harvesting cells and low-cost biosensors that could be used to test water quality in developing countries.
DLCs are disk-shaped molecules that are one of the more promising candidates for organic electronic devices. However, controlling their alignment has proved ...
4 kinds of compulsive gamblers identified
2010-10-15
Disorganised and emotionally unstable, poorly adapted, suffering from alcohol problems, impulsive, or with a "globally adapted" personality. These are the features of the four diagnosed types of compulsive gamblers identified by researchers at the University Hospital of Bellvitge (IDIBELL) and the Autonomous University of Barcelona (UAB). According to the scientific team, only one of these four shows signs of a significant pathology.
"We need to use different treatments for each sub-group of pathological gamblers in order to respond to their specific therapeutic difficulties ...
New malware could steal users social media behavior and info -- Ben-Gurion U. researchers
2010-10-15
BEER-SHEVA, ISRAEL, October 14, 2010 -- A new study by Ben-Gurion University of the Negev (BGU) researchers predicts that a new generation of malware (software written for malicious purposes like identity theft) could steal data on human behavior patterns, which is more dangerous than traditional, detectable attacks.
In the newly published paper, "Stealing Reality," Dr. Yaniv Altschuler and Dr. Yuval Elovici from BGU discuss malware threats that extract personal information about relationships in a real-world social network, as well as characteristic information about ...
New method is found for accurate diagnosis of gall bladder cancer, 1 of the most deadly
2010-10-15
Researchers a the University of Granada and the Department of Nuclear Medicine, Hospital Virgen de las Nieves at Granada found that the metabolic imaging diagnosis technique –based on the analysis of a structural analog of glucose labeled with a positron-emitting compound (18F)– allows early diagnosis of gall bladder cancer, a relatively rare disease with high mortality rates among most patients suffering from it.
For the purpose of this study, 62 patients were subjected to this scanning method, which represents the largest sample of patients with gall bladder cancer ...
Asteroid collision forensics
2010-10-15
In the first half of February 2009, two asteroids collided in a region of space beyond the orbit of Mars, as scientists from the Max Planck Institute for Solar System Research (MPS) in Germany have now discovered. The researchers were able to pinpoint the exact date of the impact more precisely than ever before. The debris of the crash had attracted the attention of scientists worldwide. Together with the largest earthbound telescopes and the Hubble Space Telescope, the OSIRIS camera system onboard ESA's space probe Rosetta, that was developed and is now operated under ...
New research helps clinicians predict treatment outcomes for children with OCD
2010-10-15
VIDEO:
New research from the Bradley Hasbro Children's Research Center may help clinicians better predict how a child with obsessive compulsive disorder (OCD) will respond to some of the most commonly...
Click here for more information.
EAST PROVIDENCE, RI – New research from the Bradley Hasbro Children's Research Center may help clinicians better predict how a child with obsessive compulsive disorder (OCD) will respond to some of the most commonly used treatment approaches. ...
University of East Anglia makes cancer breakthrough
2010-10-15
Scientists at the University of East Anglia have made an important breakthrough in the way anti-cancer drugs are tested.
A tumour cannot grow to a large size or spread until it has developed its own blood supply and leading research has looked for a way of halting capillary formation to stop tumours taking hold.
But new findings published today in the Journal of Cell Science have shown that scientists testing such treatments may not have been studying exactly what they thought they were.
The research proves that cells are able to switch their genetic profile – ...
OCTANE study influences revision of WHO guidelines for treating some HIV-infected women
2010-10-15
Findings from a study, which appear in the Oct. 14, 2010 New England Journal of Medicine, helped influence the World Health Organization (WHO) to change its guidelines this year for the treatment of HIV-infected women who receive a single dose of the antiretroviral drug nevirapine to prevent HIV transmission to their babies. The study demonstrated that the single dose of nevirapine used to prevent mother-to-child transmission of HIV can hamper the drug's effectiveness if it is also used later as part of a regimen to treat these same individuals.
The Phase III study, called ...
Biomarker shows potential for early diagnosis of lung cancer
2010-10-15
CHAPEL HILL, NC – A collaboration between physicians and scientists at UNC Lineberger Comprehensive Cancer Center and the University of Texas M.D. Anderson Cancer Center has demonstrated that a biomarker called TCF21 may be used to develop a potential screening test for early-stage lung cancer.
Despite the fact that lung cancer is the leading cause of cancer deaths worldwide, early-stage lung cancer is difficult to diagnose. A number of proposed screening tests, including screening CT scans and serum markers, have not shown any benefit in enhancing patient survival.
TCF21 ...
Not all doctors follow cancer screening guidelines
2010-10-15
Only one-fifth of primary care physicians in the US follow practice guidelines for colorectal cancer screening for all the tests they recommend, according to Dr. Robin Yabroff from the National Cancer Institute and her colleagues. About 40 percent followed guidelines for some of the tests they recommended and the remaining 40 percent did not follow guidelines for any of the screening tests they recommended. Furthermore, their analysis1 of physician screening recommendations for colorectal cancer shows that many clinicians either overuse or underuse screening. Their findings ...
Orchid tricks hoverflies
2010-10-15
Even Darwin was a self-admitted orchid lover. Dictionaries describe orchids as exotic ornamentals. Indeed, these plants – more than 30000 different species are thought to exist – are exotic due their extraordinary and diverse flower morphology. However, they are also exotic from a point of view other than beauty: as crafty imposters in order to achieve reproduction and to make sure that their ovaries are pollinated. Orchids depend on the assistance of pollinators, and like many other flowering plants, attract insects.
Epipactis veratrifolia, an orchid native in South ...
The kids are all right: Few negative associations with moms' return to work after having children
2010-10-15
WASHINGTON – Children whose mothers return to work before their offspring turn 3 are no more likely to have academic or behavioral problems than kids whose mothers stay at home, according to a review of 50 years of research.
"Overall, I think this shows women who go back to work soon after they have their children should not be too concerned about the effects their employment has on their children's long-term well-being," said psychologist Rachel Lucas-Thompson, PhD, lead author of the study conducted with Drs. JoAnn Prause and Wendy Goldberg at the University of California, ...
Study: Belief in rumors about proposed NYC mosque linked to opposition to all mosques
2010-10-15
COLUMBUS, Ohio – People who believe false rumors about the proposed Islamic cultural center and mosque near Ground Zero in New York City not only are more likely to oppose that project – they are more likely to oppose building of a mosque in their own neighborhood.
Researchers surveyed 750 Americans and asked them if they believed any of four rumors associated with the New York City mosque, all of which have been refuted. One of the rumors, for example, falsely says that that the proposed center is scheduled to open on September 11, 2011 in celebration of the 10-year ...
Large gaps found in public understanding of climate change
2010-10-15
New Haven, Conn.—Sixty-three percent of Americans believe that global warming is happening, but many do not understand why, according to a national study conducted by researchers at Yale University.
The report titled "Americans' Knowledge of Climate Change" found that only 57 percent know what the greenhouse effect is, only 45 percent of Americans understand that carbon dioxide traps heat from the Earth's surface, and just 50 percent understand that global warming is caused mostly by human activities. Large majorities incorrectly think that the hole in the ozone layer ...
JILA unveils improved 'molecular fingerprinting' for trace gas detection
2010-10-15
Scientists at JILA and collaborators have demonstrated an improved laser-based "molecular fingerprinting" technique that picks out traces of key hydrogen-containing and other molecules from a billion other particles in a gas in just 30 seconds or less—performance suitable for breathalyzers for diagnosing disease, measuring trace gases in the atmosphere, detecting security threats and other applications.
JILA is jointly operated by the National Institute of Standards and Technology (NIST) and University of Colorado at Boulder (CU).
Described in Optics Express,* the research ...
CR Magazine sheds light on the burden of cancer on the streets
2010-10-15
PHILADELPHIA — An article published in the Ffall 2010 issue of CR, the AACR's magazine for cancer survivors and their families and caregivers, details the immense challenges faced by those who suffer with cancer and lack the necessary resources for proper treatment and care — the homeless.
CR magazine contributing writer Cynthia Ryan, Ph.D., who is an associate professor of English at the University of Alabama at Birmingham, took to the streets over the last year to offer a glimpse into the lives of homeless cancer patients struggling to obtain treatment while being ...
Cyberwars: Already underway with no Geneva Conventions to guide them
2010-10-15
BUFFALO, N.Y. -- Cyber attacks of various sorts have been around for decades. The most recent, and very dangerous, escalation in the past few years has been marked by countries launching attacks against other nations, such as Stuxnet, the nuclear plant-disrupting worm the Iranians have blamed on Israel and the U.S., while others are pointing the finger at Russia.
University at Buffalo military ethicist Randall R. Dipert, PhD, one of the founders of the National Center for Ontological Research at UB, says we have good reason to worry, because cyber attacks are almost ...
Is anxiety contagious?
2010-10-15
Anxiety, or the reaction to a perceived danger, is a response that differs from one animal or human to another ― or so scientists thought. Now researchers at Tel Aviv University are challenging what we know about stress, and their study has implications for helping clinicians better treat victims of terrorism or natural disasters.
Prof. David Eilam and his graduate student Rony Izhar of Tel Aviv University's Department of Zoology are spearheading a study designed to investigate the anxieties experienced by an entire social group. Using the natural predator-and-prey ...
NIST mini-sensor traces faint magnetic signature of human heartbeat
2010-10-15
Researchers from the National Institute of Standards and Technology (NIST) and the German national metrology institute have used NIST's miniature atom-based magnetic sensor to successfully track a human heartbeat, confirming the device's potential for biomedical applications.
Described in Applied Physics Letters,* the study is the first to be performed under conditions resembling a clinical setting with the NIST mini-sensors, which until now have been operated mostly in physics laboratories. The new experiments were carried out at the Physikalisch Technische Bundesanstalt ...
Biologists identify influence of environment on sexual vs. asexual reproduction
2010-10-15
TORONTO, ON – Evolutionary biologists at the University of Toronto (U of T) have found that environment plays a key role in determining whether a species opts for sexual over asexual reproduction.
The study, led by post-doctoral student Lutz Becks and Professor Aneil Agrawal of the Department of Ecology & Evolutionary Biology, found that species that inhabit spatially heterogenous environments – habitats characterized by uneven concentrations of its own species among a rich variety of other animals and plants – had higher rates of sexual reproduction than those in more ...
Faster CARS, less damage: NIST chemical microscopy shows potential for cell diagnostics
2010-10-15
A paper by researchers at the National Institute of Standards and Technology (NIST) may breathe new life into the use of a powerful—but tricky—diagnostic technique for cell biology. The paper,* appearing this week in the Biophysical Journal, demonstrates that with improved hardware and better signal processing, a powerful form of molecular vibration spectroscopy can quickly deliver detailed molecular maps of the contents of cells without damaging them. Earlier studies have suggested that to be useful, the technique would need power levels too high for cells.
The technique, ...
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