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168,132 articles from ScienceDaily

Monoclonal antibody fragment treatments for 'wet' macular degeneration keep elderly drivers behind the wheel, study suggests

The advanced neovascular, or "wet," form of age-related macular degeneration (AMD), left untreated, is the most common cause of vision loss among the elderly and a leading reason for their loss of driving privileges. But results of a new study suggest that monthly injections of ranibizumab improve eye chart test results required for a driver's license, build driver confidence and keep those with...

Scientists team with U.S. Coast Guard to explore ice-free Arctic Ocean

With the melting ice in the Arctic, U.S. Coast Guard crews based in Alaska have taken on a new challenge: carefully deploying scientific equipment through cracks in the ice from an airplane hundreds of feet in the air. It's all part of a new partnership that has evolved since disappearing Arctic ice has opened vast new frontiers -- for the Coast Guard and for University of Washington scientists....

Warning, automatic braking systems on autos will help save lives, researchers predict

Researchers extracted 1,396 incidents of rear-end collisions from a national U.S. database and looked at them on a case-by-case basis to determine whether the intelligent vehicle systems being studied would have been called into play and, if so, how they would have helped. The research showed that 7.7 percent of crashes would be prevented by use of all three systems -- warning, assisted braking,...

New findings on the workings of the inner ear

The sensory cells of the inner ear have tiny hairs called stereocilia that play a critical part in hearing. It has long been known that these stereocilia move sideways back and forth in a wave-like motion when stimulated by a sound wave. After having designed a microscope to observe these movements, a research team in Sweden has discovered that the hairs not only move sideways but also change in...

Children's bicycle helmets effective in impact and crush tests, study suggests

To determine the effectiveness of bicycle helmet use, scientists tested how well helmets withstood forces of impact and crush tests when covering human cadaver skulls. They found that helmet use can substantially reduce (by up to 87%) the acceleration experienced by the skull during an impact and can aid the skull in resisting forces up to 470 pounds in a crush...

Concussion spectrum in college athletes wearing helmets: 'Not so simple,' say researchers

Much has been written in recent years about the short- and long-term consequences of concussions sustained in sports, combat, and accidents. However, there appear to be no steadfast rules guiding the definition of concussion. Researchers investigated the signs, symptoms, and clinical histories used by athletic trainers to define concussion in individual college athletes engaged in contact sports....

Immune system can boost nerve regrowth, study suggests

Modulating immune response to injury could accelerate the regeneration of severed peripheral nerves, a new study in an animal model has found. By altering activity of the macrophage cells that respond to injuries, researchers dramatically increased the rate at which nerve processes...

Hospital bedsores linked to patient mortality

A new clinical has found a direct correlation between pressure ulcers and patient mortality and increased hospitalization. This is believed to be the first study of its kind to use data directly from medical records to assess hospital acquired pressure ulcers in Medicare patients at the national and state...

New hope for taming triple-negative breast cancer

Researchers have identified molecules called microRNAS that can uniquely sensitize drug-resistant, triple-negative breast cancer to chemotherapy drugs. In preclinical studies, the team found microRNA effectively treated cancer in mice and was safe based on toxicity studies.

Trojan horse drug therapy provides new approach to treating breast cancer

When administrative assistant Linda Tuttle was diagnosed with breast cancer, she never imagined her experience would inspire her colleagues to design new treatments to tackle the disease. But after her diagnosis, Tuttle's use of tamoxifen, a drug commonly used to treat breast cancer, inspired medicinal chemists to develop a targeted therapy that delivers a sneak attack to the disease, similar to a...