Fwd: Science X Newsletter Wednesday, Oct 8

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From: Newsletter Phys.org <not-for-reply@physorg.com>
Date: Thu, Oct 9, 2014 at 2:34 AM
Subject: Science X Newsletter Wednesday, Oct 8
To: Pascal Alter <pascal.alter@gmail.com>

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Here is your customized Phys.org Newsletter for October 8, 2014:

Spotlight Stories Headlines

- Dolphin-inspired sonar overcomes size-wavelength limitation
- Two Americans, one German win Chemistry Nobel for giving microscope sharper vision
- Hungry black hole eats faster than thought possible
- Radio telescopes unravel mystery of nova gamma rays
- UW fusion reactor concept could be cheaper than coal
- Researchers watch, in real time, the dynamic motion of HIV as it readies an attack
- Study using OpenStreetMap and mathematics reveals there are only four unique city topologies
- Amputees discern familiar sensations across prosthetic hand
- First ultraluminous pulsar: NuSTAR discovers impossibly bright dead star
- Scientists question fundamental theory about education of immune police
- In a battle of brains, bigger isn't always better
- How dinosaurs divided their meals at the Jurassic dinner table
- Asian cave paintings challenge Europe as cradle of art
- Smartphone understands gestures
- Researchers identify epigenetic changes caused by binge drinking

Astronomy & Space news

	Hungry black hole eats faster than thought possible Astronomers have discovered a black hole that is consuming gas from a nearby star 10 times faster than previously thought possible. The black hole—known as P13—lies on the outskirts of the galaxy NGC7793 about 12 million light years from Earth and is ingesting a weight equivalent to 100 billion billion hot dogs every minute.
	Radio telescopes unravel mystery of nova gamma rays Highly-detailed radio-telescope images have pinpointed the locations where a stellar explosion called a nova emitted gamma rays, the most energetic form of electromagnetic waves. The discovery revealed a probable mechanism for the gamma-ray emissions, which mystified astronomers when first observed in 2012.
	First ultraluminous pulsar: NuSTAR discovers impossibly bright dead star Astronomers working with NASA's Nuclear Spectroscopic Telescope Array (NuSTAR), led by Caltech's Fiona Harrison, have found a pulsating dead star beaming with the energy of about 10 million suns. The object, previously thought to be a black hole because it is so powerful, is in fact a pulsar—the incredibly dense rotating remains of a star.
	Lutetia's dark side hosts hidden crater Grooves found on Lutetia, an asteroid encountered by ESA's Rosetta spacecraft, point to the existence of a large impact crater on the unseen side of the rocky world.
	Rocket fuel freeze caused EU satellite mislaunch, probe finds Fuel that froze on a Russian Soyuz rocket caused two satellites from Europe's troubled Galileo navigation system to be placed into the wrong orbit in August, an investigation concluded Wednesday.
'Blood moon' awes sky watchers in Americas and Asia (Update) Stargazers in the Americas and Asia were treated to a lunar eclipse Wednesday, a celestial show that bathed the moon in a reddish tint to create a "blood moon."
	Fingerprints of life on Mars NASA's Astrobiology Institute (NAI) announced that the SETI Institute has been selected as a new member of the NAI for a 5-year research program, "Changing Planetary Environments and the Fingerprints of Life." Led by planetary geologist and Senior Research Scientist, Nathalie Cabrol, the team's work will address key questions. How can we identify the signature of life not just here on Earth, but on Mars as well? How does a planet's changing environment impact the evidence for life?
	Image: Alexander Gerst conducts spacewalk ESA astronaut Alexander Gerst spent six hours and 13 minutes outside the International Space Station with NASA astronaut Reid Wiseman on Tuesday, 7 October 2014. This was the first spacewalk for both astronauts but they performed well in the weightlessness of orbit.
	PHOTOS: Lunar eclipse in Asia and the Americas Evening viewers in much of Asia and early risers in parts of the Americas were treated to a stunning lunar eclipse on Wednesday, though clouds obscured it for some.
	Building the Lynx spacecraft Ready, set … launch? That's what XCOR is hoping to accomplish as the company continues building its Lynx spacecraft prototype.

Medicine & Health news

	Researchers watch, in real time, the dynamic motion of HIV as it readies an attack Researchers at Weill Cornell Medical College have developed technologies that allow investigators, for the first time, to watch what they call the "dance" of HIV proteins on the virus' surface, which may contribute to how it infects human immune cells. Their discovery is described in the Oct. 8 issue of Science, and is also a part of a study published the same day in Nature.
	Amputees discern familiar sensations across prosthetic hand Even before he lost his right hand to an industrial accident 4 years ago, Igor Spetic had family open his medicine bottles. Cotton balls give him goose bumps.
	Neurons in human muscles emphasize the impact of the outside world Stretch sensors in our muscles participate in reflexes that serve the subconscious control of posture and movement. According to a new study published in the Journal of Neuroscience, these sensors respond weakly to muscle stretch caused by one's voluntary action, and most strongly to stretch that is imposed by external forces. The ability to reflect causality in this manner can facilitate appropriate reflex control and accurate self-perception.
	New weapons against multidrug resistance in tuberculosis Using a high-throughput screening assay, EPFL scientists have discovered two small molecules that could overcome the multidrug resistance of the bacterium that causes tuberculosis.
	In a battle of brains, bigger isn't always better It's one of those ideas that seems to make perfect sense: the bigger the brain, the more intelligent the creature. While it is generally true, exceptions are becoming increasingly common. Yet the belief persists even among scientists. Most biologists, for example, assume that rats, with larger brains, are smarter than mice. Cold Spring Harbor Laboratory (CSHL) scientists now challenge this belief. They compared mice and rats and found very similar levels of intelligence, a result that could have powerful implications for researchers studying complex behaviors and learning.
	Scientists question fundamental theory about education of immune police A fundamental theory about how our thymus educates our immune police appears to be wrong, scientists say.
	Researchers identify epigenetic changes caused by binge drinking Researchers at the University of Missouri School of Medicine have identified epigenetic protein changes caused by binge drinking, a discovery that could lead to treatments for alcohol-related liver diseases.
	Conspicuous tRNA lookalikes riddle the human genome Transfer RNAs (tRNAs) are ancient workhorse molecules and part of the cellular process that creates the proteins, critical building blocks of life that keep a cell running smoothly. A new discovery suggests that the number of human genomic loci that might be coding for tRNAs is nearly double what is currently known. Most of the newly identified loci resemble the sequences of mitochondrial tRNAs suggesting unexpected new links between the human nuclear and mitochondrial genomes, links that are not currently understood.
	Technology helps 'locked-in' stroke patient communicate People who've had severe strokes and have a condition called "locked-in" syndrome may benefit from a new technology that allows them to communicate with the outside world, according to new research.
Large chain restaurants appear to be voluntarily reducing calories in their menu items New research from the Johns Hopkins Bloomberg School of Public Health finds that large chain restaurants, whose core menu offerings are generally high in calories, fat and sodium, introduced newer food and beverage options that, on average, contain 60 fewer calories than their traditional menu selections in 2012 and 2013.
	Universal screening for MRSA may be too costly Numerous experts and policy makers have called for hospitals to screen patients for methicillin-resistant Staphylococcus aureus (MRSA) infections and isolate anyone testing positive to prevent the spread of these so-called "Superbugs" in healthcare settings. Several states have enacted laws requiring patients be screened for MRSA upon admission.
Childhood eating difficulties could be a sign of underlying psychological issues Researchers at the University of Montreal and its affiliated CHU Sainte-Justine children's hospital are warning parents that difficult eaters could have underlying psychological issues, as they have found that restrictive behaviours can appear before puberty. "Many researchers believe that bulimia only appears at adolescence, but our studies indicate that the problem can arises much earlier. It is possible that it is currently under-diagnosed due to a lack of awareness and investigation," explained clinical psychologist and Professor Dominique Meilleur, who led the study. The findings, presented yesterday evening at the Eating Disorders Association of Canada conference in Vancouver, raise questions about the way eating disorders develop and are diagnosed.
Schools key to reaching the one in ten children with mental health problems Schools are a vital way of reaching the 10-20 percent of children and young people across the globe who would benefit from some sort of mental health intervention, according to a new Series on mental health interventions in schools published in The Lancet Psychiatry.
	Americans living longer as most death rates fall Americans are living longer than ever before, according to a new government report filled mostly with good news. U.S. life expectancy inched up again and death rates fell.
	Certain meds, driving can be deadly mix: FDA (HealthDay News) —Thinking about taking a drive after popping some over-the-counter medications? Better check the label first, warn experts at the U.S. Food and Drug Administration.
	US traffic accidents send 2.5 million to ERs each year, CDC says (HealthDay)—Road crash injuries sent more than 2.5 million Americans to emergency rooms in 2012. And, nearly 200,000 were hospitalized due to motor vehicle collisions, a new federal government report says.
	Handheld U/S beats physical exam for heart abnormalities (HealthDay)—For patients with suspected cardiac abnormalities, handheld ultrasound (HHU) is more accurate for diagnosis than physical examination, according to a study published online Sept. 17 in JACC: Cardiovascular Imaging.
	Impact of physician payments sunshine act discussed (HealthDay)—The Physician Payments Sunshine Act is causing concern for manufacturers and providers, as well as physicians, according to a health policy brief published online Oct. 2 in Health Affairs.
	School-based health centers can serve as medical homes (HealthDay)—School-based health centers (SBHCs) can serve as patient-centered medical homes, according to a study published online Oct. 6 in Pediatrics.
	States encouraged to use physician assistant workforce (HealthDay)—Physician assistants (PAs) have an important role in the provision of health care and their role should be encouraged by appropriate state legislation, according to a report from the National Governors Association.
	Research suggests stroke risk up with beta-blockers in select patients (HealthDay)—For patients without prior myocardial infarction (MI) with no heart failure, β-blocker use is not associated with lower cardiovascular events, and there may be an increased risk of stroke for patients without previous events but with multiple cardiovascular risk factors, according to a study published online Sept. 30 in Circulation: Cardiovascular Quality and Outcomes.
	Fruit flies reveal features of human intestinal cancer Researchers in Spain have determined how a transcription factor known as Mirror regulates tumour-like growth in the intestines of fruit flies. The scientists believe a related system may be at work in humans during the progression of colorectal cancer due to the observation of similar genes and genetic interactions in cultured colorectal cancer cells. The results are reported in the journal EMBO Reports.
	Screen everyone over 45 for diabetes: US task force (HealthDay)—Every American over the age of 45 should be screened for both type 2 diabetes and prediabetes, a U.S. task force has recommended.
	Insulin dependence ups post-op complication risk (HealthDay)—Patients with insulin-dependent diabetes mellitus (IDDM) have an increased risk of a number of postoperative complications after lumbar fusion compared with those who have noninsulin-dependent diabetes mellitus (NIDDM) or no diabetes, according to a study published in the Oct. 1 issue of Spine.
	Hospitals' high antibiotic use may boost germs' resistance: study (HealthDay)—About half of all U.S. hospital patients receive antibiotics, and these drugs are commonly the ones more likely to promote the growth of antibiotic-resistant bacteria, a new study found.
	Ovarian cancer DNA detected in vaginal fluid, researchers report (HealthDay)—Researchers have found it's possible to detect ovarian cancer gene mutations in vaginal fluid samples—a finding they hope is a step toward an effective screening test for the disease.
	Undiagnosed hypertension more likely in rheumatoid arthritis (HealthDay)—Among patients meeting guideline-based criteria for hypertension, those with rheumatoid arthritis (RA) are less likely to receive a diagnosis of hypertension, according to a study published in the September issue of Arthritis Care & Research.
	Review: Physical activity in pregnancy cuts cesarean risk (HealthDay)—Physical activity in pregnancy is associated with a reduction in the risk of cesarean delivery, according to a review published in the October issue of the American Journal of Obstetrics & Gynecology.
	Gay and bisexual youth can thrive with positive family relationships Gay and bisexual youth who are supported by their family and feel comfortable talking to them about their lifestyle are less likely to become involved in high-risk sexual behaviors, according to a recent Rutgers study.
	Cyclists break road rules to stay safe Most cyclists who use bicycles as a form of transport admit to breaking road rules at some time while riding but they do it mostly to guard their own safety on the roads, UNSW research has found.
	What kind of research can we trust? Research involving pharmaceutical company input is notoriously compromised. While not all industry ties lead to biased research, and not all biases are a consequence of industry ties, many studies show industry influence can make drugs look safer and more effective than they really are. So where can doctors and indeed the public turn to for reliable information?
	Miniature wireless device creates way to study chronic pain Ada Poon, a Stanford assistant professor of electrical engineering, is a master at building miniscule wireless devices that function in the body and can be powered remotely. Now, she and collaborators in bioengineering and anesthesia want to leverage this technology to develop a way of studying – and eventually developing treatments for – pain.
	Fight flu early with annual vaccine, doctors urge Very soon, people of all ages across Canada will roll up their sleeves for their flu shots.
One million Asian children living with blindness University of Adelaide eye surgeons will conduct a national survey of blindness in Laos in the latest effort to prevent and repair blindness for people in South-East Asia.
Dads of newborn twins shorted almost as much sleep as moms, study finds (Medical Xpress)—Mothers of twins struggle to get sufficient, uninterrupted sleep, what with double feedings and all. But a new study by researchers at Case Western Reserve University's school of nursing finds that fathers don't fare much better.
	Combined behavioral support and medication offers smokers best chance of quitting Researchers demonstrate that smoking cessation clinical trial results translate effectively into the "real world," reports Mayo Clinic Proceedings.
	A dry powder inhaler formulation provides excellent protection against pneumonia-causing bacteria Despite advances in vaccination and antimicrobial therapy, community-acquired pneumonia remains a leading cause of morbidity and mortality, even in highly developed countries. Desmond Heng, Reginald Tan and co-workers at the A*STAR Institute of Chemical and Engineering Sciences have now developed a dry powder inhalation formulation to treat bacterial infections associated with this disease.
	Teen gaming addicts may wind up physically healthier as young adults Teens who play video/computer games 21 hours a week or more may be physically healthier and less prone to obesity as young adults than peers who spend their time on other pursuits. But gamers who log the most screen time also may be more prone to depression in young adulthood, a new study says.
Six hospitalised in Spain Ebola scare One more Spanish health care worker was admitted to hospital for monitoring for Ebola on Wednesday, bringing to six the number of hospitalisations in Madrid where a nurse has been infected with the disease, a hospital official said.
Ebola 'unavoidable' in Europe, but spread risk low: WHO Cases of Ebola in Europe are unavoidable, but the risk of the disease spreading is extremely low, a top UN health official said Wednesday, amid growing fears over infections in Spain.
	Sexting in teens linked to more sexual activity, low self-esteem Relatively few teens say they have engaged in sexting, or the sharing of nude or nearly nude photos via mobile phone or the Internet, finds a new study in the Journal of Adolescent Health.
	UK smoking rates continue to fall The UK has seen a fall in the number of adults who smoke in the country, according to figures from the Office for National Statistics (ONS).
	Flies with colon cancer help to unravel the genetic keys to disease in humans Researchers at the Institute for Research in Biomedicine (IRB Barcelona) have managed to generate a fruit fly (Drosophila melanogaster) model that reproduces human colon cancer. With two publications appearing in PLoS One and EMBO Reports, the IRB team also unveil the function of a key gene in the development of the disease.
Drug regimen enough to control immune disease after some bone marrow transplants Johns Hopkins and other cancer researchers report that a very short course of a chemotherapy drug, called cyclophosphamide, not only can prevent a life-threatening immune response in some bone marrow transplant recipients, but also can eliminate such patients' need for the usual six months of immune suppression medicines commonly prescribed to prevent severe forms of this immune response. Patients receive cyclophosphamide for two days after their bone marrow transplant, in addition to two other chemotherapy drugs given before the transplant.
	Teenage girls are exposed to more stressors that increase depression risk Adolescence is often a turbulent time, and it is marked by substantially increased rates of depressive symptoms, especially among girls. New research indicates that this gender difference may be the result of girls' greater exposure to stressful interpersonal events, making them more likely to ruminate, and contributing to their risk of depression.
	Do-it-yourself flu vaccine? Study shows it works A study suggests that do-it-yourself flu vaccine might be possible. Researchers found that military folks who squirted a nasal vaccine up their noses were as well-protected as others who got it from health workers.
	Nursing home infection rates on the rise, study finds Nursing home infection rates are on the rise, a study from Columbia University School of Nursing found, suggesting that more must be done to protect residents of these facilities from preventable complications. The study, which examined infections in U.S. nursing homes over a five-year period, found increased infection rates for pneumonia, urinary tract infections (UTIs), viral hepatitis, septicemia, wound infections, and multiple drug-resistant organisms (MDROs).
Study finds potential link between breast cancer genes and salivary gland cancer The risk of developing cancer in a salivary gland might be higher in people with mutations in either of two genes associated with breast and ovarian cancer, according to a new study by researchers at The Ohio State University Comprehensive Cancer Center – Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC – James).
	Study reveals that children as young as five can gauge when adults are overconfident From the words for colours to how to tie a shoelace, kids have lots to learn—and for the most part, they depend on others to teach it to them.
Robotic surgery: More complications, higher expense for some conditions For benign gynecologic conditions, robot-assisted surgery involves more complications during surgery and may be significantly more expensive than conventional laparoscopic surgery, according to a study by researchers at Columbia University Medical Center (CUMC). The results were published online today in Obstetrics & Gynecology.
	Neuroscientists use snail research to help explain 'chemo brain' It is estimated that as many as half of patients taking cancer drugs experience a decrease in mental sharpness. While there have been many theories, what causes "chemo brain" has eluded scientists.
	Active aging is much more than exercise The global population is ageing rapidly, and the growing numbers of elderly people challenge our societal structures, not least the health sector, which is why authorities in most countries encourage elderly to lead active and healthy life styles. But to equate active ageing strictly with health is too narrow a focus, new research from University of Copenhagen shows; the elderly can reap social and health benefits from activities that do not necessarily conform to official life style recommendations – billiards for instance.
Childhood psychological abuse as harmful as sexual or physical abuse Children who are emotionally abused and neglected face similar and sometimes worse mental health problems as children who are physically or sexually abused, yet psychological abuse is rarely addressed in prevention programs or in treating victims, according to a new study published by the American Psychological Association.
Safety advocates seek stronger warnings on Chantix (Update) Public safety advocates are asking the federal government to strengthen warnings on Pfizer's anti-smoking drug Chantix, even as the drugmaker prepares to argue that a bold-letter warning about psychiatric problems should be removed from the medicine's label.
Study finds early signs of heart trouble in obese youth A study that used two-dimensional echocardiography to closely examine the hearts of 100 children and teens found physical and functional signs of future heart problems already developing in obese children.
Study: Indian government health insurance reduced mortality among the poor A government program to provide health insurance for catastrophic illness to households below the poverty line in Karnataka, lowered both mortality rates and out-of-pocket expenses for the residents, according to a recent evaluation published in the leading global health journal The BMJ.
TGen and NAU patent for new pandemic flu test is approved The federal government has awarded a patent to the Translational Genomics Research Institute (TGen) and Northern Arizona University (NAU) for a test that can detect—and assist in the treatment of—the H1N1 pandemic flu strain.
Deficits in tactile-based learning linked to Fragile X Syndrome Researchers at Children's Hospital Los Angeles (CHLA) have described for the first time a specific perceptual learning deficit in mice with a mutation of the same gene as found in children with Fragile X Syndrome (FXS). Their findings, published on October 8 by PLOS ONE, may offer an effective pre-clinical platform for both investigating how brain circuitry is altered in FXS and testing drugs to improve these symptoms in children.
Mind-controlled prosthetic arms that work in daily life are now a reality For the first time, robotic prostheses controlled via implanted neuromuscular interfaces have become a clinical reality. A novel osseointegrated (bone-anchored) implant system gives patients new opportunities in their daily life and professional activities.
Price gap between more and less healthy foods grows, research says A new study, published today in the journal PLOS One, tracked the price of 94 key food and beverage items from 2002 to 2012. Its findings show that more healthy foods were consistently more expensive than less healthy foods, and have risen more sharply in price over time.
	Grapefruit juice stems weight gain in mice fed a high-fat diet, study finds Fad diets come and go, but might there be something to the ones that involve consuming grapefruit and grapefruit juice? New research at the University of California, Berkeley, suggests that a closer look at grapefruit juice is warranted.
Insomnia among older adults may be tied to sleep quality, not duration Reports of insomnia are common among the elderly, but a new study finds that sleep problems may stem from the quality of rest and other health concerns more than the overall amount of sleep that patients get.
Increased health risks linked to first-episode psychosis Many patients with psychosis develop health risks associated with premature death early in the course of their mental illness, researchers have found.
	Healthy lifestyle may cut stroke risk in half for women Women with a healthy diet and lifestyle may be less likely to have a stroke by more than half, according to a study published in the October 8, 2014, online issue of Neurology, the medical journal of the American Academy of Neurology.
Gene therapy shows promise for severe combined immunodeficiency Researchers have found that gene therapy using a modified delivery system, or vector, can restore the immune systems of children with X-linked severe combined immunodeficiency (SCID-X1), a rare, life-threatening inherited condition that primarily affects boys. Previous efforts to treat SCID-X1 with gene therapy were initially successful, but approximately one-quarter of the children developed leukemia two to five years after treatment. Results from a study partially funded by the National Institute of Allergy and Infectious Diseases (NIAID), a component of the National Institutes of Health (NIH), suggest that the new vector is equally effective at restoring immunity and may be safer than previous approaches.
	Patient's dramatic response and resistance to cancer drug traced to unsuspected mutations The DNA of a woman whose lethal thyroid cancer unexpectedly "melted away" for 18 months has revealed new mechanisms of cancer response and resistance to the drug everolimus, said researchers from Dana-Farber Cancer Institute and the Broad Institute of MIT and Harvard.
Novel protein in heart muscle linked to cardiac short-circuiting and sudden cardiac deaths Cardiovascular scientists at NYU Langone Medical Center have identified in mouse models a protein known as Pcp4 as a regulator of the heart's rhythm. Additionally, when the Pcp4 gene is disrupted, it can cause ventricular arrhythmias.
	New gene therapy for 'bubble boy' disease appears effective, safe A new form of gene therapy for boys with X-linked severe combined immunodeficiency syndrome (SCID-X1), a life-threatening condition also known as "bubble boy" disease, appears to be both effective and safe, according to a collaborative research team from Dana-Farber/Boston Children's Cancer and Blood Disorders Center and other institutions conducting an international clinical trial. Early data suggest that the therapy may avoid the late-developing leukemia seen in a quarter of SCID-X1 patients in pioneering gene therapy trials in Europe more than a decade ago.
Women who eat fried food before conceiving are at risk of developing gestational diabetes during pregnancy New research published in Diabetologia (the journal of the European Association for the Study of Diabetes) shows that women who eat fried food regularly before conceiving are at increased risk of developing gestational diabetes during pregnancy. The research is led by Drs Cuilin Zhang and Wei Bao, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD, part of the US National Institutes of Health) Rockville, MD, USA, and colleagues.
Online intervention tool for physician trainees may improve care of substance users Online learning interventions and small group debriefings can improve medical residents' attitudes and communication skills toward patients with substance use disorders, and may result in improved care for these patients, according to a new study from the Perelman School of Medicine at the University of Pennsylvania and Drexel University College of Medicine published online in Academic Medicine.
Researchers develop reproducibility score for SNPs associated with human disease in GWAS To reduce false positives when identifying genetic variations associated with human disease through genome-wide association studies (GWAS), Dartmouth researchers have identified nine traits that are not dependent on P values to predict single nucleotide polymorphisms (SNP) reproducibility as reported in Human Genetics on October 2, 2014.
Team finds that drug used for another disease slows progression of Parkinson's A new study from UCLA found that a drug being evaluated to treat an entirely different disorder helped slow the progression of Parkinson's disease in mice.
Mortality risk of overweight and obesity similar for blacks, whites A study from American Cancer Society researchers finds the increased risk of premature death associated with a higher body mass index (BMI) is similar for African Americans and whites, in contrast to previous, smaller studies that indicated the association may be weaker for African Americans. The study, published in the open-access, online publication PLOS ONE, finds that among never smokers without prevalent disease, overweight and obesity are strongly associated with subsequent risk of mortality in every race. The authors say given the high prevalence of overweight and obesity among all racial-ethnic populations, and the disproportionately higher rates in African Americans among whom 35 percent are obese, the findings are of considerable clinical and public health relevance.
	Smoking cannabis doesn't make you more creative People often think that smoking cannabis makes them more creative. However, research by Leiden psychologists Lorenza Colzato and Mikael Kowal shows that the opposite is true. They published their findings on 7 October in Psychopharmacology.
Teens still sending naked selfies A new study from the University of Utah confirms that substantial numbers of teens are sexting – sending and receiving explicit sexual images via cellphone. Though the behavior is widely studied, the potentially serious consequences of the practice led the researchers to more accurately measure how frequently teens are choosing to put themselves at risk in this fashion.
	Anthropologists find that even among egalitarian forager-farmers, social status can impact health and happiness In western society, where keeping up with the Joneses—or, better yet, surpassing them—is expected and even encouraged, status matters. So important is it that for many people, physical and emotional wellbeing are directly connected to their place in the social hierarchy.
	Laxative type might influence colon cancer risk, study finds (HealthDay)—A new study suggests that the type of laxative a person takes might be a factor in their odds for colon cancer.
	Methodology addresses 'awakenings' under anesthesia (HealthDay)—New methodology can be used to examine the incidence, predisposing factors, causality, and impact of accidental awareness during general anesthesia, according to research published in the October issue of the British Journal of Anaesthesia.
	FARE, ACEP develop new anaphylaxis toolkit (HealthDay)—A new anaphylaxis toolkit has been developed to help answer questions about managing life-threatening allergies after patients are discharged from the emergency department, according to a report from Food Allergy Research & Education (FARE) and the American College of Emergency Physicians.
	Chemo rx patterns changed before reimbursement changes (HealthDay)—Other factors may affect chemotherapy prescription patterns more than changes in Medicare reimbursement, according to a study published online Sept. 29 in the Journal of Clinical Oncology.
	Women have greater atheroma regression with statins (HealthDay)—For patients with coronary atheroma, high-intensity statin treatment is associated with greater regression in women than men, according to a study published online Sept. 17 in JACC: Cardiovascular Imaging.
Skin exposure may contribute to early risk for food allergies Many children may become allergic to peanuts before they first eat them, and skin exposure may be contribute to early sensitization, according to a study in mice led by Mount Sinai researchers and published today in the Journal of Clinical Investigation. Early in the process of developing an allergy, skin exposure to food allergens contributes to "sensitization", which means the skin is reactive to an antigen, such as peanuts, especially by repeated exposure.
More appropriate use of cardiac stress testing with imaging could reduce health costs In a new study recently published in the Annals of Internal Medicine, researchers at NYU Langone Medical Center concluded that overuse of cardiac stress testing with imaging has led to rising healthcare costs and unnecessary radiation exposure to patients.
	US orders agents to monitor travelers for Ebola (Update) Homeland Security agents at airports and other ports of entry have begun observing travelers coming into the United States for potential signs of Ebola infection and handing out fact sheets about the disease, a U.S. official said Wednesday.
American doctor exposed to Ebola allowed home An American physician who was hospitalized in the United States after being exposed to the Ebola virus in Sierra Leone was allowed home Tuesday, health officials said.
Spanish Ebola nurse 'mainly' stayed home after falling ill A Spanish nurse who caught Ebola at a Madrid hospital "mainly" stayed home after feeling the first symptoms of the deadly disease, her husband said in an interview published Wednesday.
France to go for plain cigarette packets in 2016 France will introduce plain cigarette packaging in 2016, Health Minister Marisol Touraine said on Wednesday, as the country seeks to stub out high smoking rates in under-16s.
Second UN worker gets Ebola in Liberia The United Nations mission in Liberia announced on Wednesday a second infection among its employees of the deadly Ebola epidemic ravaging the impoverished west African nation.
Rare surgery helps Southern California teen judo champ return to the mat Myles Honda, a 16-year-old from Torrance, California, was ranked No. 1 in the nation in judo for his age and weight class. He had even earned the nickname "Giant Killer" from an opposing coach thanks to his uncanny ability to take down much taller opponents. But fatigue and weakness in his left arm had started to sideline him.
Mental illness linked to extreme risk of homelessness University of Adelaide researchers say the greatest level of accommodation assistance should be directed to those most likely to need it, with Australians suffering from psychiatric and intellectual disabilities found to be at the highest risk of homelessness.
Nursing profession doing more to meet health needs When a brother or sister is hurting, the whole family feels it and worries about it. That is what happens in nursing as well. As the largest health care profession, there are approximately 3 million registered nurses in the United States who I consider part of an extended family.
Don't shake hands, Uganda president urges amid Ebola-like Marburg threat Ugandan President Yoweri Museveni on Wednesday called on people to stop shaking hands as the country works to contain the Ebola-like Marburg virus, which has killed one person.
	Report: Cost of Ebola could top $32 billion Ebola's economic toll could reach $32.6 billion by year's end if the disease ravaging Guinea, Liberia and Sierra Leone spreads across West Africa, the World Bank said Wednesday.
Dietary fat under fire Researchers at the Institute of nutrition and functional foods (INAF) of Université Laval are calling for a review of dietary recommendations on saturated fat (SFA) in relation to cardiovascular disease (CVD). The association between saturated fat and cardiovascular risk has become a hot topic in nutrition.
Taiwan probes fresh tainted oil claim Taiwan on Wednesday pulled several products from shelves over fresh allegations that they were contaminated with oil intended for animal feeds, in another food safety scare after a damaging "gutter oil" scandal.
	US Ebola training focuses on astronaut-like gear The physicians practice pulling on bulky white suits and helmets that make them look more like astronauts than doctors preparing to fight a deadly enemy. These training sessions at U.S. hospitals on Ebola alert and for health workers heading to Africa can make the reality sink in: Learning how to safely put on and take off the medical armor is crucial.
	Doc: Spanish woman touched face with Ebola glove Spanish health officials were investigating Wednesday whether a nursing assistant got Ebola by touching her face with Ebola-tainted protective gloves, while Ebola burial teams in Sierra Leone halted a strike that had left abandoned bodies in the streets of the capital.
US doctor who recovered from Ebola donates blood again An American doctor who recovered from Ebola has donated his blood to a second patient, a freelance cameraman who is being treated in Nebraska, a hospital spokesman said Wednesday.
	1st Ebola patient diagnosed in the US has died The first Ebola patient diagnosed in the United States died Wednesday morning in a Dallas hospital Wednesday, a hospital spokesman said.
	WHO: Spain's Ebola case won't be last in Europe A Spanish nursing assistant may be the first person in the ongoing epidemic to catch Ebola outside of Africa, but she probably won't be the last, experts warn.
GW physician helps launch HerStory app for women experiencing breast cancer, mastectomy As physicians spend less time with their patients, often as little as 10-15 minutes per appointment, they grow increasingly wary of the limited emotional support they can provide within that time frame.
Support for Medicaid expansion strong among low-income adults Low-income adults overwhelmingly support Medicaid expansion and think the government-sponsored program offers health care coverage that is comparable to or even better in quality than private health insurance coverage, according to a new study from Harvard School of Public Health (HSPH) researchers.
Exploring the link between childhood obesity and cognition Difficulties learning, remembering, and concentrating. An inability to resist environmental temptations to eat. A lifetime of progressive deterioration in the brain. These may be the prices paid by children who regularly consume a diet high in saturated fat and sugar.
Ebola death toll close to 3,900: WHO The death toll in the world's worst-ever Ebola epidemic has edged closer to 3,900, with the virus killing nearly half of the more than 8,000 people infected, UN figures showed Wednesday.
	Tips provided for maximizing use of patient portals (HealthDay)—Patient portals should be designed to meet patient priorities and promoted in order to maximize their use and boost practice efficiency, according to an article published Oct. 1 in Medical Economics.
	More Ebola screening to begin at five US airports The government plans will begin taking the temperatures of travelers from West Africa arriving at five U.S. airports as part of a stepped-up response to the Ebola epidemic.

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