January 13, 2014 |
Memory loss, cognitive deficits, drops in IQ, and abnormal brain structures: these are but a few of the neurotoxic effects that recent research has correlated to marijuana use in adolescents. But while a number of studies suggest a link between these changes and regular cannabis use, particularly for young teens, there is no definitive evidence that marijuana is entirely to blame. Adolescents who smoke daily, for example, may have problems that predate marijuana use. One thing is certain: pot smoking among American teenagers is on the rise.
December 28, 2013 |
Developers use architectural renderings as a form of storytelling - highlighting what they want us to notice in their projects, obscuring what they don't. Some buildings are shown standing alone in the world, while others appear as mere specks in a crowd. At night, the lights are always blazing, as if electric bills didn't matter. So it is with a plan by Children's Hospital of Philadelphia for a high-rise research campus on the east bank of the Schuylkill, next to the South Philadelphia rowhouse neighborhood known as the Devil's Pocket.
December 15, 2013 |
Losing weight may be a matter not only of what you eat, but when you eat. Evidence is mounting that abnormally timed meals - those consumed in conflict with the normal three meals a day - may result in gaining fat. In a study this year in the International Journal of Obesity, researchers found participants in a weight-loss program who ate earlier in the day lost significantly more weight. The observational study followed 420 individuals who adhered to a 20-week weight-loss program in Spain.
December 5, 2013 |
Nicholas C. Montegna, 93, of Cherry Hill, a chemical company research director who grew exotic azaleas as a hobby, died of heart failure Friday, Nov. 29, at home. Mr. Montegna grew up in an Italian neighborhood in Germantown and in later years enjoyed reunions with childhood friends, son Nicholas said. After graduating from Northeast Catholic High School, Mr. Montegna worked for Rohm & Haas Co. in Philadelphia. During World War II, he served in the Army and was commissioned a first lieutenant at 21. He was deployed to southern England, where he was an administrator in an Army hospital.
November 24, 2013 |
Being just a kid himself, 7-year-old Sam Hornikel isn't concerned about his ability to have children of his own yet. He's thinking more about the soccer game he missed, or his math homework. But researchers around the world are working to give boys like Sam - who fought off cancer when he was only 3 years old - the opportunity to have their own family one day. Often, chemotherapy or radiation treatments can harm fertility. Typically, older patients can bank sperm, but for those who haven't gone through puberty yet, researchers are deep-freezing tiny pieces of their testicular tissue.
November 14, 2013 |
At least one investment research firm is calling for a correction in the stock market, and advising us to get ready to sell stocks. That gives us a chance to explain the difference between a "correction" and a "bear market" in equities. Corrections come in three sizes: small (3 percent to 5 percent), medium (5 percent to 10 percent), and bear market (more than 20 percent). "Small ones are hard to predict and rebound quickly," said Jean-Yves Dumont, of GaveKal Research, headquartered in New York.
November 3, 2013 |
It's a scene that might be repeated dozens of times on Drexel University's campus today: A student, sitting at a table, eating pizza. But Annie Feng is different. The sophomore nibbles on a mini pizza while wearing a headband designed to measure her brain activity. And unlike many brain-imaging machines, this device can be used at a table. By monitoring the brains of people during meals, researchers hope to learn about the cognitive aspects of eating, and why some people stop at a single slice while others devour the pie. This portable device has sparked the interest of researchers worldwide.
November 2, 2013 |
Jeremy J. Fischer, 52, of Kimberton, who publicized his two-year battle with pancreatic cancer to help raise research funds and gracefully modeled how patients can live with cancer, died Sunday, Oct. 27, of the disease at his home. Mr. Fischer spoke on the air last year as part of the Stand Up to Cancer campaign supporting researchers here and across the country whose focus is hard-to-treat cancers. Before the report, Mr. Fischer's weight had dropped to 119 pounds, but he described his illness to CBS3 reporter Stephanie Stahl as "like a crouching tiger in a room.
October 31, 2013 |
YEARLY trick-or-treat safety guides urge parents to keenly scan each candy wrapper to spot signs of hidden poisons or razor blades. But has any kid ever actually been hurt or killed by a nefarious neighbor's ricin-laced Snickers? Joel Best, a University of Delaware sociology and criminal-justice professor, found that the candy-coated threat is about as likely as real vampires and witches going door-to-door each Oct. 31. He has studied newspaper articles going back 25 years, looking for the sensational tale of a child collapsing after eating a handful of poison Skittles.
October 30, 2013 |
When Hurricane Sandy hit the Jersey Shore a year ago today, the wetlands-monitoring equipment of Tracy Quirk, an Academy of Natural Sciences of Drexel University researcher, was in its path. If the storm washed everything away, two years of painstaking work - not to mention hours of slogging through marsh muck in hip waders to install the devices - would be compromised. She'd have to start over to get continuous, long-term data. The equipment, it turned out, did more than survive.