An African-American or Mexican-American senior living in a community where many neighbors share their background is less likely to have cancer or heart disease than their counterpart in a more mixed neighborhood. Results of the new study by Kimberly Alvarez, a PhD student at Columbia University's Mailman School of Public Health, and Becca Levy, PhD, associate professor of Epidemiology and Psychology at the Yale School of Public Health, appear in the December issue of the American Journal of Public Health and online. Counter to prevailing notions, researchers found ...

A process developed to increase efficiency and productivity in Japanese car factories has helped improve stroke treatment at Barnes-Jewish Hospital, report researchers at Washington University School of Medicine in St. Louis. By applying the principles of Toyota's lean manufacturing process, doctors sharply reduced the average time between patient arrival and treatment, known as door-to-needle time, from 58 to 37 minutes. The findings are reported Oct. 18 in the journal Stroke. In an average year, the medical school's physicians treat 1,300 stroke patients at Barnes-Jewish. Beginning ...

Researchers at the Johns Hopkins Bloomberg School of Public Health have determined a new mechanism by which the mosquitoes' immune system can respond with specificity to infections with various pathogens, including the parasite that causes malaria in humans, using one single gene. Unlike humans and other animals, insects do not make antibodies to target specific infections. According to the Johns Hopkins researchers, mosquitoes use a mechanism known as alternative splicing to arrange different combinations of binding domains, encoded by the same AgDscam gene, into protein ...

October 18, 2012 -- Breast-feeding reduces the risk for estrogen receptor-negative and progesterone receptor-negative breast cancer, according to a study conducted at Columbia University's Mailman School of Public Health. Researchers examined the association between reproductive risk factors — such as the number of children a woman delivers, breast-feeding and oral contraceptive use – and found an increased risk for estrogen receptor- and progesterone receptor- (ER/PR) negative breast cancer in women who do not breast-feed. The results also indicated that having three ...

OAKLAND, Calif., Oct. 18— A U.S. Food and Drug Administration-funded study led by the Kaiser Permanente Northern California Division of Research found an increased risk of arterial thrombotic events (ATE) and venous thromboembolic events (VTE) — commonly referred to as blockage of arteries and blood clots, respectively — associated with drospirenone-containing birth control pills compared to four low-dose estrogen combined hormonal contraceptives. The study appears in the current online issue of Contraception. "We found that starting use of drospirenone-containing combined ...

PASADENA, Calif.—Chemists at the California Institute of Technology (Caltech) have managed, for the first time, to simulate the biological function of a channel called the Sec translocon, which allows specific proteins to pass through membranes. The feat required bridging timescales from the realm of nanoseconds all the way up to full minutes, exceeding the scope of earlier simulation efforts by more than six orders of magnitude. The result is a detailed molecular understanding of how the translocon works. Modeling behavior across very different timescales is a major ...

HOUSTON - Low depressive symptoms and a longer telomere length are compelling factors that contribute to a prolonged life for bladder cancer patients according to researchers at The University of Texas MD Anderson Cancer Center. In an observational study, a team of MD Anderson researchers analyzed clinical and behavioral data collected from 464 bladder cancer patients, according to research presented at the 11th Annual AACR International Conference on Frontiers in Cancer Prevention Research. "This is the first study of its kind that analyzes bladder cancer outcomes," ...

Certain types of routes carry much lower risk of injury for cyclists, according to a new University of British Columbia study on the eve of Vancouver's Bike to Work Week. The study, published today in the American Journal of Public Health, analyzed the cause of 690 cycling injuries in Vancouver and Toronto from 2008 to 2009 and various route types and infrastructure. The greatest risk to cyclists occurs when they share major streets with parked cars, with no bike lanes present – like on Broadway in Vancouver or Dundas Street in Toronto. Without a designated space on ...

Bethesda, MD, October 18, 2012 The Association for Molecular Pathology (AMP) published the report of the Whole Genome Analysis (WGA) Working Group of the AMP Clinical Practice Committee in the November 2012 issue of The Journal of Molecular Diagnostics (JMD). Titled "Opportunities and Challenges Associated with Clinical Diagnostic Genome Sequencing," the timely report provides a detailed and compelling overview of the landscape of next generation sequencing (NGS) technology and its clinical relevance and impact on improving patient care. The issues addressed in the ...

Boston, MA— Excitement around the potential for targeted nanoparticles (NPs) that can be controlled by stimulus outside of the body for cancer therapy has been growing over the past few years. More specifically, there has been considerable attention around near-infrared (NIR) light as an ideal method to stimulate nanoparticles from outside the body. NIR is minimally absorbed by skin and tissue, has the ability to penetrate deep tissue in a noninvasive way and the energy from NIR light can be converted to heat by gold nanomaterials for effective thermal ablation of diseased ...

We live in a human-dominated world. For many of our fellow creatures, this means a fragmented world, as human conduits to friends, family, and resources sever corridors that link the natural world. Our expanding web of highways, cities, and intensive agriculture traps many animals and plants in islands and cul-de-sacs of habitat, held back by barriers of geography or architecture from reaching mates, food, and wider resources. A team of researchers, managers, and ecological risk assessors review the current state-of-the-art in landscape connectivity planning, offering ...

People are more likely to install a solar panel on their home if their neighbors have one, according to a Yale and New York University study in the journal Marketing Science. The researchers studied clusters of solar installations throughout California from January 2001 to December 2011 and found that residents of a particular zip code are more likely to install solar panels if they already exist in that zip code and on their street. "We looked at the influence that the number of cumulative adoptions—the number of people who already installed solar panels in a zip ...

It's fall football season, when fight songs and shouted play calls fill stadiums across the country. Another less rousing sound sometimes accompanies football games: the sharp crack of helmet-to-helmet collisions. Hard collisions can lead to player concussions, but the physics of how the impact of a helmet hit transfers to the brain are not well understood. A research team from the U.S. Naval Academy in Annapolis, Md., has created a simplified experimental model of the brain and skull inside a helmet during a helmet-to-helmet collision. The model illustrates how the fast ...

Global temperatures directly affect the acidity of the ocean, which in turn changes the acoustical properties of sea water. New research suggests that global warming may give Earth's oceans the same hi-fi sound qualities they had more than 100 million years ago, during the Age of the Dinosaurs. The reason for this surprising communication upgrade is that whales vocalize in the low-frequency sound range, typically less than 200 hertz, and the new research predicts that by the year 2100, global warming will acidify saltwater sufficiently to make low-frequency sound near ...

Noise can be distracting, especially to a person trying to concentrate on a difficult task. Studying annoying noises helps architects design better building environments and policy makers choose effective noise regulations. To better understand how short noise bursts affect humans' mental state, researchers from the University of Nebraska – Lincoln played quarter-second-long white noise clips to test subjects as they worked on arithmetic problems. The researchers noticed a slight general trend toward lower performance when louder noises were played, and also identified ...

Miss hitting the "sweet spot" on a baseball bat and the resulting vibrations can zing your hands. Bat companies have tried for decades to reduce these painful shocks with limited success. But Daniel Russell, a professor in the graduate program in acoustics at Pennsylvania State University in University Park, has figured out that bat vibrations between 600 and 700 hertz (Hz) cause the most pain and that specifically tuned vibration absorbers are the best at combatting the sting. He will present the results of his damping technique comparisons at the 164th meeting of the ...

Earthquakes sway buildings, buckle terrain, and rumble – both audibly and in infrasound, frequencies below the threshold of human hearing. New computer modeling by a team of researchers indicates that most of the low-frequency infrasound comes from an unexpected source: the actual "pumping" of the Earth's surface. The researchers confirmed their models by studying data from an actual earthquake. "It's basically like a loudspeaker," said Stephen Arrowsmith, a researcher with the Geophysics Group at Los Alamos National Laboratory in Santa Fe, N.M., who presents his team's ...

VIDEO: Einstein predicted gravity waves in his general theory of relativity, but to date these ripples in the fabric of space-time have never been observed. Now a scientific research technique called... Click here for more information. A pioneering technology capable of atomic-level precision is now being developed to detect what so far has remained imperceptible: gravitational waves or ripples in space-time caused by cataclysmic events including even the Big Bang itself. A ...

Tropical Storm Maria is moving away from Japan and strong wind shear is pushing its rainfall east of the storm's center, according to NASA satellite imagery. On Oct. 18 at 0845 UTC (4:45 a.m. EDT), NASA's Tropical Rainfall Measuring Mission (TRMM) satellite saw that rain associated with Tropical Storm Maria was limited to the east of the storm's center. Rainfall was also light to moderate, falling at a rate between .78 to 1.57 inches/20 to 40 mm per hour. There were no areas of heavy rain remaining in the tropical cyclone. The low-level center of the storm is now exposed ...

When the lamp is shattered, The light in the dust lies dead. When the cloud is scattered, The rainbow's glory is shed. These words, which open Shelley's poem "When the Lamp is Shattered," employ visions of nature to symbolize life in decay and rebirth. It's as if he had somehow foreseen the creation of this new Gemini Legacy image, and penned a caption for it. What Gemini has captured is nothing short of poetry in motion: the colorful and dramatic tale of a life-and-death struggle between two galaxies interacting. All the action appears in a single frame, with the ...

Heavy rainfall returned to Typhoon Prapiroon for a brief time on Oct. 18 when NASA's TRMM satellite passed overhead. Prapiroon is battling strong wind shear and is expected to transition into an extra-tropical storm in the next day. NASA's Tropical Rainfall Measuring Mission (TRMM) satellite captured rainfall data on Prapiroon twice on Oct. 18 when it passed overhead. The first orbit was at 0845UTC and the second at 1019 UTC. TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) data show that rain associated with Prapiroon was falling at a rate of over 75mm/hour ...

Hurricane Rafael is no longer a tropical cyclone. The storm merged with a cold front on Oct. 18, but not before NASA's Terra satellite captured an image of the storm when it was in its last day as a hurricane. The Moderate Resolution Imaging Spectrometer (MODIS) instrument aboard NASA's Terra captured a visible image of Hurricane Rafael in the North Atlantic on Oct. 17 at 1440 UTC (10:40 a.m. EDT). Although Rafael was far from land, its northwestern fringe clouds were brushing Nova Scotia, Canada. By 5 p.m. EDT on Oct. 17, Rafael had become extra-tropical, meaning that ...

In a new perspective piece being published Online First tonight in Annals of Internal Medicine, a physician recalls lessons learned from treating patients affected by the 2002 outbreak of Exophiala (Wangiella) dermatitidis meningitis or arthritis related to contaminated, injectable coticosteroids prepared from a compounding pharmacy. According to the author, the lessons he learned in 2002 are applicable to the current outbreak. He warns that compounding of preservative-free corticosteroids requires meticulous sterility to ensure lack of fungal contamination. Without ...

NEW ORLEANS – Ashley Thomas was born with spina bifida and uses a wheelchair. She also holds a position on the U.S. national para-kayak team, and founded and runs a successful nonprofit organization called "Bridge II Sports." The North Carolina-based organization develops programs that provide opportunities for children and adults with physical disabilities to play team and individual sports. Ms. Thomas will be speaking about her experiences at the American Academy of Pediatrics (AAP) National Conference & Exhibition (NCE) in New Orleans at 11:15 a.m., Friday, Oct. 19 in ...

NEW ORLEANS – An abstract presented Friday, Oct. 19, at the American Academy of Pediatrics (AAP) National Conference and Exhibition in New Orleans highlights the risky behavior of child pedestrians who are struck by cars – including darting into the street, crossing in the middle of the block, and crossing while using an electronic device. For the abstract, "Risky Behaviors of Pediatric Pedestrians Who are Struck by Motor Vehicles," researchers collected data on all pedestrians who were injured by a motor vehicle and presented to a Level I trauma center in New York City ...