Humans
We summarize the week's scientific breakthroughs every Thursday.
- Psychology
Cell phone distraction while driving is a two-way street
When operating a car, drivers lose a grip on messages they hear.
- Health & Medicine
Mutations may underlie some stuttering
Defects in three genes governing basic cell metabolism are found in a portion of cases, researchers find.
- Anthropology
Ancient DNA points to additional New World migration
Scientists have extracted a nearly complete genome from the hairs of a 4,000-year-old man, suggesting a new scenario for Asian migrations into the New World.
- Health & Medicine
Inflammatory bowel disease hikes blood clots
Study finds people with Crohn’s disease or ulcerative colitis have greatest risk during painful episodes.
- Life
Sperm’s pore propulsion
Scientists identify a key proton channel that helps explain the dash to fertilization.
- Health & Medicine
Protein clumps like a prion, but proves crucial for long-term memory
Study in slugs hints that some molecular 'misbehavior' in neurons may help solidify learning.
- Agriculture
EPA reviews hints of weed killer’s fetal risks
The Environmental Protection Agency will be convening meetings of its Scientific Advisory Panel on pesticides throughout 2010 to probe concerns about the safety of atrazine, a weed killer on which most American corn growers rely. The first meeting of these outside experts started Tuesday. And although a large number of studies have indicated that atrazine can perturb hormones in animals and human cells — and might even pose a possible risk of cancer amongst heavily exposed people, these outcomes were not the focus of EPA’s review Tuesday. Risks to babies were.
- Health & Medicine
Journal retracts flawed study linking MMR vaccine and autism
Deleted Scenes Blog: Biomedical reporter Nathan Seppa describes latest chapter in controversy created by now debunked research.
- Health & Medicine
Small study hints SSRIs delay breast milk in new moms
Women taking the antidepressant drugs began lactating later.
- Health & Medicine
Body fat linked to late puberty in boys
Boys can take a lot of ribbing from their peers for not being macho enough. A new study now indicates that it can take longer to begin transforming into a man if a boy starts out fat.
- Earth
The FY 2011 budget: So much for transparency
Cabinet officials and other administration leaders met with reporters yesterday to outline the President’s Fiscal Year 2011 federal budget. That spending blueprint includes $147-billion-and-change for research and development programs. But in contrast to past years, details tended to be skimpy today — and any chance for followup or verification of apparent trends has proven more difficult than usual.
- Life
Keeping black bears wild
Wildlife managers compare ways to keep bears away from food and people.
