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Baltic Sea: Climate change counteracts decline in eutrophication

2014-12-01
Off the coast of Schleswig-Holstein at the exit of Eckernförde Bay is a hidden treasure, but it is not one of chests full of silver and gold. It is a unique scientific record. Since 1957, environmental parameters such as oxygen concentrations, temperature, salinity and nutrients have been measured monthly at the Boknis Eck time series station. "It is one of the oldest active time series stations for this kind of data worldwide," explains the scientific coordinator Prof. Dr. Hermann Bange from GEOMAR Helmholtz Centre for Ocean Research Kiel. To date, however, the long ...

Microbullet hits confirm graphene's strength

Microbullet hits confirm graphenes strength
2014-12-01
Graphene's great strength appears to be determined by how well it stretches before it breaks, according to Rice University scientists who tested the material's properties by peppering it with microbullets. The two-dimensional carbon honeycomb discovered a decade ago is thought to be much stronger than steel. But the Rice lab of materials scientist Edwin "Ned" Thomas didn't need even close to a pound of graphene to prove the material is on average 10 times better than steel at dissipating kinetic energy. The researchers report in the latest edition of Science that firing ...

Women outperform men in some financial negotiations, research finds

2014-12-01
WASHINGTON - In certain circumstances, women may be more effective than men when negotiating money matters, contrary to conventional wisdom that men drive a harder bargain in financial affairs, according to a new meta-analysis published by the American Psychological Association. "One reason men earn higher salaries than women could be women's apparent disadvantage vis-à-vis men in some types of negotiations," said lead author Jens Mazei, a doctoral candidate at Germany's University of Münster. "But we discovered that this disadvantage is not inevitable; rather, ...

Politics, not severe weather, drive global-warming views

Politics, not severe weather, drive global-warming views
2014-12-01
EAST LANSING, Mich. --- Scientists have presented the most comprehensive evidence to date that climate extremes such as droughts and record temperatures are failing to change people's minds about global warming. Instead, political orientation is the most influential factor in shaping perceptions about climate change, both in the short-term and long-term, said Sandra Marquart-Pyatt, a Michigan State University sociologist and lead investigator on the study. "The idea that shifting climate patterns are influencing perceptions in the United States - we didn't find that," ...

Golden Ratio offers a unity of science

Golden Ratio offers a unity of science
2014-12-01
It is said to represent a "cosmic constant" found in the curvature of elephant tusks, the shape of a kudu's horn, the destructive beauty of Hurricane Katrina, and in the astronomical grandeur of how planets, moons, asteroids and rings are distributed in the solar system, to name but a few. Now, researchers from the Universities of the Witwatersrand and Pretoria are also suggesting that the "Golden Ratio" - designated by the Greek symbol ∅ (letter Phi) with a mathematical value of about 1.618 - also relates to the topology of space-time, and to a biological species ...

Iberian orcas, increasingly trapped

Iberian orcas, increasingly trapped
2014-12-01
Thanks to the more than 11,200 sightings of cetaceans over the course of ten years, Spanish and Portuguese researchers have been able to identify, in detail, the presence of orcas in the Gulf of Cadiz, the Strait of Gibraltar and the Alboran Sea. According to the models that have been generated, the occurrence of these cetaceans is linked to the distribution of their main prey (red tuna) and their presence in Spanish, Portuguese and Moroccan waters is thus more limited than previously thought. In 2011, the Spanish Ministry of the Environment considered the small population ...

Launch of a NuPECC-ESF report

2014-12-01
The report was presented in Brussels today at an event held under the auspices of the Italian EU Presidency, gathering over sixty experts in the fields of nuclear physics and medical research. This document provides an updated overview of how fundamental nuclear physics research has had and will continue to have an impact on developments in medicine. While most nuclear physics phenomena are far beyond our daily experience there is a great variety of related techniques and applications such as those in medicine which have considerable impact on society. The development ...

Uterine contractions increase the success of artificial insemination

Uterine contractions increase the success of artificial insemination
2014-12-01
The negative impact of contractions during in vitro fertilisation is a well-known fact. What was unknown until now was the effect it had on artificial insemination. A new study has discovered that it is the contrary to that seen in embryo transfer: there is an improved chance of getting pregnant. Researchers from the Valencian Infertility Institute (IVI) have demonstrated that the number of contractions of the uterus per minute is a parameter associated with success in artificial insemination procedures. The study, recently published in the journal 'Fertility & Sterility', ...

Widening wage gap linked to more deaths among black Americans

2014-12-01
BERKELEY -- Greater income inequality is linked to more deaths among African Americans, but the effect is reversed among white Americans, who experienced fewer deaths, according to a new study by researchers at the University of California, Berkeley. The study, published in the fall 2014 issue of the International Journal of Health Services, highlights stark racial differences in the effects of the widening gap between the rich and poor. The United States has one of the largest gaps between rich and poor among developed nations. According to a report from the nonpartisan ...

Causal link between antibiotics and childhood asthma dismissed

2014-12-01
In a new register study in the scientific journal BMJ, researchers at Karolinska Institutet are able to dismiss previous claims that there is a link between the increased use of antibiotics in society and a coinciding rise in childhood asthma. The study includes half a million children and shows that exposure to antibiotics during pregnancy or early in life does not appear to increase the risk of asthma. Several previous studies have shown that if the mother is given antibiotics during pregnancy or if a small child is given antibiotics in early life, the child has an ...

Researchers use 3-D printing to guide human face transplants

Researchers use 3-D printing to guide human face transplants
2014-12-01
CHICAGO - Researchers are using computed tomography (CT) and 3-D printing technology to recreate life-size models of patients' heads to assist in face transplantation surgery, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA). Physicians at Brigham and Women's Hospital in Boston performed the country's first full-face transplantation in 2011 and have subsequently completed four additional face transplants. The procedure is performed on patients who have lost some or all of their face as a result of injury or ...

PET/CT shows pituitary abnormalities in veterans with PTSD

PET/CT shows pituitary abnormalities in veterans with PTSD
2014-12-01
CHICAGO - Hybrid imaging with positron emission tomography and computed tomography (PET/CT) in the pituitary region of the brain is a promising tool for differentiating military veterans with post-traumatic stress disorder (PTSD) from those with mild traumatic brain injury (MTBI), according to a new study presented at the annual meeting of the Radiological Society of North America (RSNA). The findings also lend support to the theory that many veterans diagnosed with PTSD may actually have hormonal irregularities due to pituitary gland damage from blast injury. MTBI ...

Imaging shows brain connection breakdown in early Alzheimer's disease

Imaging shows brain connection breakdown in early Alzheimers disease
2014-12-01
CHICAGO - Changes in brain connections visible on MRI could represent an imaging biomarker of Alzheimer's disease, according to a new study presented today at the annual meeting of the Radiological Society of North America (RSNA). Alzheimer's disease is the most common form of dementia. As many as 5 million Americans are affected, a number expected to grow to 14 million by 2050, according to the Centers for Disease Control and Prevention. Preventive treatments may be most effective before Alzheimer's disease is diagnosed, such as when a person is suffering from mild ...

High school football players show brain changes after one season

High school football players show brain changes after one season
2014-12-01
CHICAGO - Some high school football players exhibit measurable brain changes after a single season of play even in the absence of concussion, according to a study presented today at the annual meeting of the Radiological Society of North America (RSNA). "This study adds to the growing body of evidence that a season of play in a contact sport can affect the brain in the absence of clinical findings," said Christopher T. Whitlow, M.D., Ph.D., M.H.A., associate professor of radiology at Wake Forest School of Medicine and radiologist at Wake Forest Baptist Medical Center ...

HIV drug blocks bone metastases in prostate cancer

2014-12-01
(PHILADELPHIA) - Although prostate cancer can be successfully treated in many men, when the disease metastasizes to the bone, it is eventually lethal. In a study published online December 1st in the journal Cancer Research, researchers show that the receptor CCR5 best known for its role in HIV therapy, may also be involved in driving the spread of prostate cancer to the bone. "Because this work shows we can dramatically reduce metastasis in pre-clinical models, and because the drug is already FDA approved for HIV treatment- we may be able to test soon whether this drug ...

A child is treated in a US emergency department every 3 minutes for a toy-related injury

2014-12-01
'Tis the season for toys. Children are writing lists full of them, and parents are standing in lines (or tapping on computers) trying to find them. Playing with toys this season or any other is an important way for children to develop, learn, and explore. But anyone planning to buy new toys, or anyone with toys already at home, should know that many toys pose an injury risk to children. In a first-of-its-kind study, researchers in the Center for Injury Research and Policy at Nationwide Children's Hospital have found that an estimated 3,278,073 children were treated in ...

Breast cancer vaccine shows promise in small clinical trial

Breast cancer vaccine shows promise in small clinical trial
2014-12-01
A breast cancer vaccine developed at Washington University School of Medicine in St. Louis is safe in patients with metastatic breast cancer, results of an early clinical trial indicate. Preliminary evidence also suggests that the vaccine primed the patients' immune systems to attack tumor cells and helped slow the cancer's progression. The study appears Dec. 1 in Clinical Cancer Research. The new vaccine causes the body's immune system to home in on a protein called mammaglobin-A, found almost exclusively in breast tissue. The protein's role in healthy tissue is unclear, ...

Nearly 55 percent of US infants sleep with potentially unsafe bedding

Nearly 55 percent of US infants sleep with potentially unsafe bedding
2014-12-01
Nearly 55 percent of U.S. infants are placed to sleep with bedding that increases the risk of sudden infant death syndrome, or SIDS, despite recommendations against the practice, report researchers at the National Institutes of Health, the Centers for Disease Control and Prevention, and other institutions. Soft objects and loose bedding--such as thick blankets, quilts, and pillows--can obstruct an infant's airway and pose a suffocation risk, according to the NIH's Safe to Sleep campaign. Soft bedding has also been shown to increase the risk of SIDS Infants should be ...

Political correctness in diverse workplace fosters creativity

Political correctness in diverse workplace fosters creativity
2014-12-01
UNIVERSITY OF CALIFORNIA, BERKELEY'S HAAS SCHOOL OF BUSINESS -People may associate political correctness with conformity but new research finds it also correlates with creativity in work settings. Imposing a norm that sets clear expectations of how women and men should interact with each other into a work environment unexpectedly encourages creativity among mixed-sex work groups by reducing uncertainty in relationships. The study highlights a paradoxical consequence of the political correctness (PC) norm. While PC behavior is generally thought to threaten the free expression ...

Behavioral interventions to prevent progression to diabetes equally effective in men and women

2014-11-28
Behavioural and drug interventions aiming to prevent people with prediabetes progressing to full blown type 2 diabetes are equally effective for both sexes at preventing progression and reducing weight, according to a new systematic review and meta-analysis. The research is by Dr Anna Glechner, Danube University Krems, Austria, and Dr Jürgen Harreiter, Medical University of Vienna, Austria, and colleagues. Prediabetes is a general term that refers to an intermediate stage between normal blood glucose control (normoglycaemia) and type 2 diabetes (high blood glucose ...

Long-term complication rate low in nose job using patient's own rib cartilage

2014-11-27
Using a patient's own rib cartilage (autologous) for rhinoplasty appears to be associated with low rates of overall long-term complications and problems at the rib site where the cartilage is removed, according to a report published online by JAMA Facial Plastic Surgery. Autologous rib cartilage is the preferred source of graft material for rhinoplasty because of its strength and ample volume. However, using rib cartilage for dorsal augmentation to build up the bridge of the nose has been criticized for its tendency to warp and issues at the cartilage donor site, such ...

Survival differences seen for advanced-stage laryngeal cancer

2014-11-27
The five-year survival rate for advanced-stage laryngeal cancer was higher than national levels in a small study at a single academic center performing a high rate of surgical therapy, including a total laryngectomy (removal of the voice box), to treat the disease, despite a national trend toward organ preservation, according to a report published online by JAMA Otolaryngology-Head & Neck Surgery. The larynx is a common site of head and neck cancer with more than 10,000 cases annually. Over the past two decades, treatment for advanced-stage laryngeal cancer has shifted ...

Secret of tetanus toxicity offers new way to treat motor neuron disease

2014-11-27
The way that tetanus neurotoxin enters nerve cells has been discovered by UCL scientists, who showed that this process can be blocked, offering a potential therapeutic intervention for tetanus. This newly-discovered pathway could be exploited to deliver therapies to the nervous system, opening up a whole new way to treat neurological disorders such as motor neuron disease and peripheral neuropathies. The research in mice, published in Science and funded by the Medical Research Council, shows that proteins called nidogens that coat cell surfaces are key to tetanus neurotoxin ...

Using social media for behavioral studies is cheap, fast, but fraught with biases

2014-11-27
PITTSBURGH--The rise of social media has seemed like a bonanza for behavioral scientists, who have eagerly tapped the social nets to quickly and cheaply gather huge amounts of data about what people are thinking and doing. But computer scientists at Carnegie Mellon University and McGill University warn that those massive datasets may be misleading. In a perspective article published in the Nov. 28 issue of the journal Science, Carnegie Mellon's Juergen Pfeffer and McGill's Derek Ruths contend that scientists need to find ways of correcting for the biases inherent in the ...

A numbers game: Math helps to predict how the body fights disease

A numbers game: Math helps to predict how the body fights disease
2014-11-27
Walter and Eliza Hall Institute researchers have defined for the first time how the size of the immune response is controlled, using mathematical models to predict how powerfully immune cells respond to infection and disease. The finding, published today in the journal Science, has implications for our understanding of how harmful or beneficial immune responses can be manipulated for better health. The research team used mathematics and computer modeling to understand how complex signaling impacts the size of the response by key infection-fighting immune cells called ...
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