Culture

Global population growth compared to energy use

If you've lived between the year 1560 and the present day, more power to you. Literally.

That's one of several conclusions reached by University of Nebraska-Lincoln ecologist John DeLong, who has co-authored the first study to quantify the relationship between human population growth and energy use on an international scale.

The study compiled several centuries' worth of data from Great Britain, the United States and Sweden to profile the dynamics between a skyrocketing population and its consumption of energy from fossil fuels and renewable sources.

Diagnosis of psychiatric disorders not as important as outcomes

Nailing the diagnosis of a psychiatric disorder may not be important in prescribing effective treatment, according to Mark Zimmerman, M.D., a clinical researcher at Rhode Island Hospital. His opinion editorial was published online today in the Journal of Clinical Psychiatry.

Academics remake the world, prescribe how to make cancer drugs more affordable

A group of 118 academics have drafted a prescription for reducing the high cost of cancer drugs and voiced support for a patient-based grassroots movement demanding action on the issue. Their recommendations and support are outlined in a commentary, co-authored by the group, in the journal Mayo Clinic Proceedings.

Teens with medical marijuana cards much likelier to say they're addicted

A new University of Michigan study finds that teens using marijuana for medical reasons are 10 times more likely to say they are hooked on marijuana than youth who get marijuana illegally.

The study is the first to report on a nationally representative sample of 4,394 high school seniors and their legal or illegal medical marijuana use as it relates to other drug use. In the study, 48 teens had medical marijuana cards, but 266 teens used medical marijuana without a card.

Is your favorite grocery store making you fat?

Is your favorite grocery store making you fat? According to new findings, a Grocer Retailer Scorecard may be an effective, healthy shopping tool that benefits both grocers and shoppers. "Grocers can benefit from encouraging healthy shopping practices because they can sell more perishable items like fruits and vegetables rather than tossing them in the dumpster after a few days," says lead researcher Brian Wansink, PhD, director of the Food and Brand Lab at Cornell University.

Actual bias has decreased toward homosexuals - so has implicit bias

The U.S. Supreme Court's recent ruling legalizing marriage between same-sex couples in all 50 states follows on the heels of national polls showing rapid cultural changes in attitudes toward lesbian and gay people. A new University of Virginia study confirms that, by using a test designed to find that people have unconscious biases.

Increasing prevalence of autism due to changing diagnoses

The greater than three-fold increase in autism diagnoses among students in special education programs in the United States between 2000 and 2010 may be due in large part to the reclassification of individuals who previously would have been diagnosed with other intellectual disability disorders, according to new research. In a paper to be published online in the American Journal of Medical Genetics on July 22, 2015, scientists at Penn State University report their analysis of 11 years of special-education enrollment data on an average of 6.2 million children per year.

Readiness of American biology teachers questioned

In recent years, government assessments have raised concerns about the nation's science workforce. Writing in an article for BioScience, Gregory T. Rushton and a team of researchers looked for clues in the National Center for Education Statistics' Schools and Staffing Surveys from 1987 through 2007. These results, combined with those from prior studies, reveal some patterns with serious implications for the future of science pedagogy.

Gerber "Chew University" - for parents who think babies won't learn how to eat otherwise

Gerber announced this week that they are offering parents an open enrollment in the digitally created "Chew University," an online experience that celebrates the chewing milestone with daily prizes and resources for parents. Chew U was founded in partnership with Gerber's newest product launch, 3rd Foods® Lil' Bits™ recipes, which are made with perfectly sized soft pieces of fruits or veggies to help babies learn how to chew.

Stress 'sweet spot' differs for mellow vs. hyper dogs

People aren't the only ones who perform better on tests or athletic events when they are just a little bit nervous -- dogs do too. But in dogs as in people, the right amount of stress depends on disposition.

A new study by researchers at Duke University finds that a little extra stress and stimulation makes hyper dogs crack under pressure but gives mellow dogs an edge.

The findings appear online in the journal Animal Cognition.

According to an idea in psychology called the Yerkes-Dodson law, a little stress can be a good thing, but only up to a point.

Sex and violence may not sell as well as we think

If there's one thing advertisers (and media outlets) think they know, it is that sex and violence sell.

A new analysis, however, provides some of the best evidence to date that this widely accepted adage just isn't true.

Researchers analyzed the results of 53 different experiments (a so-called meta-analysis) involving nearly 8,500 people, done over 44 years. All of these experiments examined some facet of the question of whether sexual or violent media content could help sell advertised products.

Fatherhood makes men fat

All those leftover pizza crusts you snatch from your kids' plates add up. Men gain weight after they become fathers for the first time whether or not they live with their children, reports a large, new Northwestern Medicine study that tracked the weight of more than 10,000 men from adolescence to young adulthood.

What is a good looking penis?

In a new study, women considered the position and shape of the urethral opening to be the least important aspects of a penis' appearance.

They also perceived the genitals of men who underwent surgery to treat distal hypospadias--a congenital condition in which the opening of the urethra is on the underside of the penis--to be as normal-looking as nonaffected, circumcised genitals.

"The information may help prevent the development of shame or impaired genital perceptions about penile appearance," said Dr. Norma Ruppen, lead author of the study.

People are finally standing up to Gawker's gutter journalism

Over the past 24 hours, Gawker, the controversial gossip blog owned by Gawker Media, has earned some extraordinary and entirely justified opprobrium. It brought this on itself by posting a prurient and cruel story about the alleged sexual conduct of a finance executive employed by rival media company Condé Nast.

How to stop revenge porn - overhaul mainstream porn

The Press Association recently obtained new figures under Freedom of Information (FoI) laws, which show that police are dealing with their largest ever volume of revenge pornography cases. In the six months from October 2014 to April 2015, a total of 139 revenge porn allegations were made, on behalf of victims ranging from 11 years old, to over 60.