Medicine Technology 🌱 Environment Space Energy Physics Engineering Social Science Earth Science Science
Study finds fair trade logo boosts consumer's willingness to pay
Science 2015-08-27

Study finds fair trade logo boosts consumer's willingness to pay

Products labeled with a Fair Trade logo cause prospective buyers to dig deeper into their pockets. In an experiment conducted at the University of Bonn, participants were willing to pay on average 30 percent more for ethically produced goods, compared to their conventionally produced counterparts. The neuroscientists analyzed the neural pathways involved in processing products with a Fair Trade emblem. They identified a potential mechanism that explains why Fair Trade products are evaluated more positively. For instance, activity in the brain's reward center increases and ...
Read more →
Environment 2015-08-27

Humus depletion induced by climate change?

This news release is available in German. The yields of many important crops in Europe have been stagnating since the 1990s. As a result, the input of organic matter into the soil - the crucial source for humus formation - is decreasing. Scientists from the Technical University Munich (TUM) suspect that the humus stocks of arable soils are declining due to the influence of climate change. Humus, however, is a key factor for soil functionality, which is why this development poses a threat to agricultural production - and, moreover, in a worldwide context. In their ...
Read more →
Medicine 2015-08-27

Differences in brain structure and memory suggest adolescents may not 'grow out of' ADHD

Young adults diagnosed with attention deficit/hyperactivity disorder (ADHD) in adolescence show differences in brain structure and perform poorly in memory tests compared to their peers, according to new research from the University of Cambridge, UK, and the University of Oulu, Finland. The findings, published today in the journal European Child Adolescent Psychiatry, suggest that aspects of ADHD may persist into adulthood, even when current diagnostic criteria fail to identify the disorder. ADHD is a disorder characterised by short attention span, restlessness and ...
Read more →
Medicine 2015-08-27

Health workers wasting expensive malaria drugs in Nigeria

This news release is available in French and Portuguese. Health providers trained to perform malaria rapid diagnostic tests (RDT) are still prescribing valuable malaria medicines to patients who do not have malaria, according to new research published in PLOS ONE. Almost 5,000 participants from 40 communities took part in the study, at a variety of public health facilities, pharmacies and drug stores in the Nigerian state of Enugu. Despite the three different training interventions that they received and their satisfaction with the courses and materials, rates of ...
Read more →
Science 2015-08-27

How the mind sharpens the senses

A study conducted with experienced scholars of Zen-Meditation shows that mental focussing can induce learning mechanisms, similar to physical training. Researchers at the Ruhr-University Bochum and the Ludwig-Maximilians-University München discovered this phenomenon during a scientifically monitored meditation retreat. The journal Scientific Reports, from the makers of Nature, has now published their new findings on the plasticity of the brain. Participants of the study use a special meditation technique The participants were all Zen-scholars with many years of ...
Read more →
Science 2015-08-27

HIV testing among older adults is declining, despite CDC recommendation

Researchers led by the UCLA Fielding School of Public Health examined HIV testing trends among adults ages 50 through 64 both before and after 2006, when the Centers for Disease Control and Prevention (CDC) recommended that most doctors automatically screen all patients for HIV regardless of whether they have symptoms. The researchers found that gains in HIV testing were not sustained over time. Levels of engagement in HIV risk behaviors remained constant, yet testing decreased among this age group from 5.5 percent in 2003 to 3.6 percent in 2006. It increased immediately ...
Read more →
Bacterial warfare
Medicine 2015-08-27

Bacterial warfare

It's bacteria against bacteria, and one of them is going down. Two UC Santa Barbara graduate students have demonstrated how certain microbes exploit proteins in nearby bacteria to deliver toxins and kill them. The mechanisms behind this bacterial warfare, the researchers suggest, could be harnessed to target pathogenic bacteria. Their findings appear in the Proceedings of the National Academy of Sciences. Lead authors Julia L.E. Willett and Grant C. Gucinski have detailed how gram-negative bacteria use contact-dependent growth inhibition (CDI) systems to infiltrate ...
Read more →
Science 2015-08-27

Link between gene variant and aggression in children

Some children react more strongly to negative experiences than others. Researchers from the Norwegian University of Science and Technology (NTNU) have found a link between aggression and variants of a particular gene. But children who react most aggressively also tend to respond more strongly to good experiences, the Norwegian researchers found. These children's mood swings have deeper valleys, but also greater peaks. Aggression is common in young children. Aggressive behaviour increases until children are around 4 years old, and then gradually subsides. Research ...
Read more →
Pigments, organelles persist in fossil feathers
Environment 2015-08-27

Pigments, organelles persist in fossil feathers

PROVIDENCE, R.I. [Brown University] -- A study provides multiple lines of new evidence that pigments and the microbodies that produce them can remain evident in a dinosaur fossil. In the journal Scientific Reports, an international team of paleontologists correlates the distinct chemical signature of animal pigment with physical evidence of melanosome organelles in the fossilized feathers of Anchiornis huxleyi, a bird-like dinosaur that died about 150 million years ago in China. The idea that melanosomes, which produce melanin pigment, are preserved in fossils has been ...
Read more →
New theory leads to radiationless revolution
Science 2015-08-27

New theory leads to radiationless revolution

Physicists have found a radical new way confine electromagnetic energy without it leaking away, akin to throwing a pebble into a pond with no splash. The theory could have broad ranging applications from explaining dark matter to combating energy losses in future technologies. However, it appears to contradict a fundamental tenet of electrodynamics, that accelerated charges create electromagnetic radiation, said lead researcher Dr Andrey Miroshnichenko from The Australian National University (ANU). "This problem has puzzled many people. It took us a year to get this ...
Read more →
Medicine 2015-08-27

CanDL database shines light on clinically important cancer gene mutations

COLUMBUS, Ohio - Many clinical trials use genome sequencing to learn which gene mutations are present in a patient's tumor cells. The question is important because targeting the right mutations with the right drugs can stop cancer in its tracks. But it can be difficult to determine whether there is evidence in the medical literature that particular mutations might drive cancer growth and could be targeted by therapy, and which mutations are of no consequence. To help molecular pathologists, laboratory directors, bioinformaticians and oncologists identify key mutations ...
Read more →
Study shows plant species' genetic responses to climate change
Environment 2015-08-27

Study shows plant species' genetic responses to climate change

A study by the University of Liverpool has found that the genetic diversity of wild plant species could be altered rapidly by anthropogenic climate change. Scientists studied the genetic responses of different wild plant species, located in a natural grassland ecosystem near Buxton, to a variety of simulated climate change treatments--including drought, watering, and warming--over a 15-year period. Analysis of DNA markers in the plants revealed that the climate change treatments had altered the genetic composition of the plant populations. The results also indicated a ...
Read more →
Social Science 2015-08-27

Political polarization on Twitter depends on the issue

Twitter offers a public platform for people to post and share all sorts of content, from the serious to the ridiculous. While people tend to share political information with those who have similar ideological preferences, new research from NYU's Social Media and Political Participation Lab demonstrates that Twitter is more than just an "echo chamber." The research is published in Psychological Science, a journal of the Association for Psychological Science. "Platforms like Twitter or Facebook are creating unprecedented opportunities for citizens to communicate with ...
Read more →
Medicine 2015-08-27

New strategy improves detection of genetic mutations in hereditary colorectal cancer

Philadelphia, PA, August 27, 2015 - About 3% of colorectal cancers are due to Lynch syndrome, an inherited cancer susceptibility syndrome that predisposes individuals to various cancers. Close blood relatives of patients with Lynch syndrome have a 50% chance of inheritance. The role that PMS2 genetic mutations play in Lynch syndrome has been underestimated in part due to technological limitations. A new study in the Journal of Molecular Diagnostics describes a multi-method strategy to overcome existing technological limitations by more accurately identifying PMS2 gene mutations, ...
Read more →
Science 2015-08-27

JBJS 'Watch' cites head-neck troubles with modular hip implants

Needham, MA.-JBJS Case Connector, an online case report journal published by The Journal of Bone and Joint Surgery, has issued a "Watch" regarding relatively rare but potentially catastrophic complications from failure of modular head-neck prostheses commonly used in hip-replacement surgery. The arthroplasty community currently feels that the advantages gained from modularity in hip implants outweigh the risks, but this Watch raises that risk-benefit question again. The decision to issue the Watch was prompted by a case report by Swann et al. in the August 26, 2015 JBJS ...
Read more →
Medicine 2015-08-27

Common 'heart attack' blood test may predict future hypertension

Analysis of blood samples from more than 5,000 people suggests that a more sensitive version of a blood test long used to verify heart muscle damage from heart attacks could also identify people on their way to developing hypertension well before the so-called silent killer shows up on a blood pressure machine. Results of the federally funded study, led by Johns Hopkins investigators, found that people with subtle elevations in cardiac troponin T -- at levels well below the ranges detectable on the standard version of this "heart attack" test -- were more likely to be ...
Read more →
Medicine 2015-08-26

Clinical trials of dogs with cancer could lead to better treatments for humans

Dogs get cancer, too. And they have even fewer treatment options than their human owners do. But an article in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society, offers a glimmer of hope. It explores how clinical trials on man's best friend could be a win-win for both dogs and people. Judith Lavelle, an intern at C&EN, notes that only a small percentage of potential human cancer drugs get approved by the U.S. Food and Drug Administration. Many of them fail when tested in people in clinical trials. A major reason for this late ...
Read more →
Space 2015-08-26

This week from AGU: Mars' ice, Earth's mantle & 5 new research papers

GeoSpace Terraced craters: Windows into Mars' icy past Just beneath Mars' dirt surface, or regolith, researchers found an enormous slab of water ice, measuring 40 meters (130 feet) thick, and covering an area equivalent to that of California and Texas combined, according to a new study published today in Geophysical Research Letters. Eos.org What lies deep in the mantle below? For decades, scientists have probed Earth's remote mantle by analyzing how seismic waves of distant earthquakes pass through it. But we are still challenged by the technique's limitations. New ...
Read more →
Medicine 2015-08-26

Researchers reveal how a common mutation causes neurodegenerative disease

WORCESTER, MA -- Researchers have determined how the most common gene mutation in amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) disrupts normal cell function, providing insight likely to advance efforts to develop targeted therapies for these brain diseases. Scientists from the University of Massachusetts Medical School (UMMS) and St. Jude Children's Research Hospital led the research, which appeared in the science journal Nature. Investigators reported evidence that mutation of C9ORF72 interferes with the movement of RNAs and proteins into and ...
Read more →
Environment 2015-08-26

New survey on Americans' views on papal encyclical on climate change

A new national survey conducted by The Associated Press-NORC Center for Public Affairs Research and researchers at Yale University found that fewer than 1 in 3 Americans, and 40 percent of Catholics, are aware of Pope Francis's efforts to publicize global warming as a priority issue for the Catholic Church. While there is relatively low awareness of the papal encyclical, a majority of Americans say it is appropriate for the pope to take a public position on the issue of global warming. This is true even though very few Americans consider global warming as an issue of religion, ...
Read more →
Science 2015-08-26

ORNL chemical sampling interface features simplicity, speed

OAK RIDGE, Tenn., Aug. 26, 2015 - In mere seconds, a system developed at the Department of Energy's Oak Ridge National Laboratory can identify and characterize a solid or liquid sample, providing a valuable tool with applications in material science, forensics, pharmaceuticals, biology and chemistry. The device and technique, created by Gary Van Berkel and Vilmos Kertesz of ORNL's Chemical Sciences Division, is described in the journal Rapid Communications in Mass Spectrometry. The appeal of this open port sampling interface, researchers note, is its elegance, speed and ...
Read more →
Science 2015-08-26

Paralysis: Primates recover better than rodents

Monkeys and humans exhibit greater motor recovery than rats after similar spinal cord injury, according to a study conducted in Grégoire Courtine's lab at EPFL. The study results have been published in Science Translational Medicine. Spontaneous improvement occurs during the first six months after a spinal cord injury, allowing a hemiplegic patient to recover partial motor control. The researchers are using this observation to improve clinical trials and patient therapies. The neuronal mechanisms underlying this extensive recovery in primates are nearly absent in ...
Read more →
Medicine 2015-08-26

New 'mutation-tracking' blood test could predict breast cancer relapse months in advance

Scientists have developed a blood test for breast cancer able to identify which patients will suffer a relapse after treatment, months before tumours are visible on hospital scans. The test can uncover small numbers of residual cancer cells that have resisted therapy by detecting cancer DNA in the bloodstream. Researchers at The Institute of Cancer Research, London, and The Royal Marsden NHS Foundation Trust were able to track key mutations that cancer accumulates as it develops and spreads, without the need for invasive biopsy procedures. They hope that by deciphering ...
Read more →
Medicine 2015-08-26

DNA sequencing used to identify thousands of fish eggs

Using DNA sequencing, researchers have accurately painted a clear picture of fish spawning activities in a marine protected area (MPA) and have created a baseline for continuing studies on the effects of climate variability on fish populations. A group of Scripps Institution of Oceanography at UC San Diego researchers led by Ron Burton and Alice Harada collected 260 samples off the Ellen Browning Scripps Memorial Pier over a two-year period and used DNA barcoding to accurately identify over 13,000 fish eggs. This study was also a collaborative effort between the Scripps ...
Read more →
Science 2015-08-26

Self-control saps memory, study says

DURHAM, N.C. -- You're driving on a busy road and you intend to switch lanes when you suddenly realize that there's a car in your blind spot. You have to put a stop to your lane change -- and quickly. A new study by Duke University researchers suggests that this type of scenario makes a person less likely to remember what halted the action -- for example, the make and model of the car in the blind spot. People and non-human primates excel at "response inhibition." Our sophisticated brains allow us to cancel an action even when it's something engrained, like driving ...
Read more →