The acromio-clavicular joint is located at the top of the shoulder, between the collarbone and top of the shoulder blade. The AC joint is most commonly injured during sports, but can also be caused by motor vehicle accidents or falls. This dislocation is one of the most common shoulder injuries orthopedic surgeons treat.
For minor AC joint dislocations, surgeons often suggest patients wear a sling for a few weeks and undergo physiotherapy rather than undergo surgery using a plate and screws. Severe dislocations are often treated with surgery but new research finds that patients who opt for non-surgical treatment typically experience fewer complications and return to work sooner.
Vitamin D is important for the absorption and metabolism of calcium, as well as for maintaining healthy bones and muscles. It's important but different parts of America have varying levels of it, and that is the main source, so we fortify products like milk with it.
In Denmark, the sun is absent for much of the year so people generally have too low a level, but are consumers actually interested in buying foods with added vitamin D?
A team of paleontologists find in a new fossil study that the extraordinary regenerative capacities of modern salamanders are likely an ancient feature of four-legged vertebrates that was subsequently lost in the course of evolution.
Ivermectin, a workhorse of a drug that a few weeks ago earned its developers a Nobel prize for its success in treating multiple tropical diseases, is showing early promise as a novel and desperately needed tool for interrupting malaria transmission, according to new findings presented today at the American Society of Tropical Medicine and Hygiene (ASTMH) Annual Meeting.
Only 2 percent of Internet pages with information on firearm storage correctly identified all four practices that encompass safe gun storage.
In frontier days, gun safety was a given but in the modern era most kids don't grow up around guns - and movies contain a lot of gun violence without any real exposure to the consequences so children unfamiliar with firearms may regard them as toys or not realize that are loaded.
Women are more likely than men to have a bachelor's degree and a white-collar job. They are also more likely to earn less than male counterparts, finds a new study spanning two generations in the United States.
The scholars analyzed U.S. Census socioeconomic data of more than 180,000 people at two points in time. The study looked at Latino and Asian immigrants in 1980 and then at their children's generation 25 years later (in 2005), as well as non-Hispanic whites whose parents were not immigrants.
In 1980, men led women by a significant margin in bachelor's-degree attainment, white-collar jobs and earnings, the study found. This held true for all three groups: Asians, Latinos and whites.
A team of researchers have built the world's first sonic tractor beam that can lift and move objects using sound waves. Tractor beams can grab and lift objects, a concept that has been used by science-fiction writers and has since fascinated scientists and engineers.
Researchers have now built a working tractor beam that uses high-amplitude sound waves to generate an acoustic hologram which can pick up and move small objects.
Recent negative publicity surrounding police after several shootings of civilians appears to have diminished the motivation of some police officers but did not decrease their willingness to carry out their duties, according to a new psychology paper.
This is in contrast to recent comments by FBI Director James Comey, who attributed the rise in homicides in some cities to police apprehension at the prospect of cellphone videos and the possibility that such recordings could go viral. As a result, he claimed, some police may be reluctant to engage in face-to-face encounters in their communities.
Alcohol and nicotine use have long been known to go hand in hand but other than a commonality in reckless behavior, the reasons why have been speculation.
Previous surveys have shown that more than 85 percent of U.S. adults who are alcoholics also smoke cigarettes. Now, researchers from the University of Missouri School of Medicine have found that nicotine cancels out the sleep-inducing effects of alcohol, which they believe sheds light on the reason alcohol and nicotine usage are so closely linked.
During the most recent study, rats were fitted with sleep-recording electrodes and given alcohol and nicotine. The researchers found that nicotine acts via the basal forebrain to suppress the sleep-inducing effects of alcohol.
Discovering possible new forces in nature is no easy task. To discover the secret of gravity, the public thinks it took an apple falling from a tree, but really it took him inventing Calculus. linked to Newton's arguably apocryphal apple experiment has remained anchored in popular culture.
In January 1986, Ephraim Fischbach, Physics Professor from Purdue University in West Lafayette, Indiana, claimed the hypothetical possibility of the existence of a fifth force in the universe and it has spurred a tremendous amount of research in gravitational physics even though its existence, as initially formulated, has not been confirmed by experiment.
Autism is a group of complex brain developmental disorders characterized by impairments in social interaction, communication, and stereotypical and repetitive behaviors. The diagnosed incidence is estimated to be one in 68 children and effective interventions remain limited.
Behavioral therapies can improve social, emotional and behavioral impairments but these are typically time consuming (40 hours per week), remain costly and show mixed outcomes. There is currently no medical treatment for these problems.
Even anger is sexist, says a new psychology paper.
A new paper focused on jury deliberation behaviors found a distinct gender bias when it comes to expressing anger and influencing people. The study found that men use anger to influence others, but women actually lose influence when they allow anger into an argument.
Warning: Stereotypes may be harmful to patients' health.
A national study led by a USC researcher found people who encountered the threat of being judged by negative stereotypes related to weight, age, race, gender, or social class in health care settings reported adverse effects. The researchers found those people were more likely to have hypertension, to be depressed, and to rate their own health more poorly. They were also more distrustful of their doctors, felt dissatisfied with their care, and were less likely to use highly accessible preventive care, including the flu vaccine.
State-of-the-art molecular analysis of dust samples from the International Space Station (ISS) has been employed to reveal new information about some of the potential bacterial agents present in the astronauts' space environment. The research reported presence of the opportunistic bacterial pathogens that are mostly innocuous on Earth but can lead to infections that result in inflammations or skin irritations.
The ISS is a unique built environment, experiencing microgravity, space radiation and elevated carbon dioxide, and constant presence of humans. Understanding the nature of the communities of microbes -- the microbiome -- in the ISS is key to managing astronaut health and maintenance of ISS equipment.
The hormone oxytocin, which has been associated with interpersonal bonding, may enhance the pleasure of social interactions by stimulating production of marijuana-like neurotransmitters in the brain, according to a new study.
The research is the first to link oxytocin - dubbed the "love hormone" by psychologists - and anandamide, which has similarly been called the "bliss molecule" for its role in activating cannabinoid receptors in brain cells, to heighten motivation and happiness.
For years, evolutionary biologists have wondered how ecosystems during the Pleistocene epoch survived despite the presence of many species of huge, hungry herbivores, such as mammoths, mastodons and giant ground sloths.
Observations on modern elephants suggest that large concentrations of those animals could have essentially destroyed the environment, but that wasn't the case.
A new paper argues that the ecosystem was effectively saved by predatory animals that helped keep the population of large herbivores in check. Their findings show that intense, violent attacks by packs of some of the world's largest carnivores -- including lions much larger than those of today and sabertooth cats -- went a long way toward shaping ecosystems during the Pleistocene epoch.
A new way to store methane could speed the development of cleaner-burning natural gas-powered cars that don't require the high pressures or cold temperatures of today's compressed or liquefied natural gas vehicles.
Natural gas is cleaner-burning than gasoline, and today there are more than 150,000 compressed natural gas (CNG) vehicles on the road in the U.S., most of them trucks and buses. But until manufacturers can find a way to pack more methane into a tank at lower pressures and temperatures, allowing for a greater driving range and less hassle at the pump, passenger cars are unlikely to adopt natural gas as a fuel.
A new study concludes that even if calories are the same and no weight is lost, children are still healthier with added sugar - and the author say changes in high cholesterol and blood pressure, are noticeable in as little as 10 days.
Metabolic syndrome is a cluster of conditions -- increased blood pressure, high blood glucose level, excess body fat around the waist, and abnormal cholesterol levels -- that occur together and increase risk of heart disease, stroke, and diabetes. Other diseases associated with metabolic syndrome, such as non-alcoholic fatty liver disease and type 2 diabetes, now occur in children -- disorders previously unknown in the pediatric population.