A 39-year-old man who had had been completely paralyzed for four years was able to voluntarily control his leg muscles and take thousands of steps in a robotic device during five days of training with the aid of the robotic device combined with a novel noninvasive spinal stimulation pattern that does not require surgery, a team of UCLA scientists reports.
Social interaction could be the mechanism that allows animals living in groups to synchronize their activities, whether it's huddling for warmth or offering protection from predators.
As governments and industries expand their use of high-decibel seismic surveys to explore the ocean bottom for resources, experts from eight universities or organizations say new global standards and mitigation strategies are needed to minimize the amount of sound the surveys produce and reduce risks posed to vulnerable marine life, especially in formerly unexploited areas such as the Arctic Ocean and US Atlantic coast now targeted for exploration.
Bumblebees infected with a common intestinal parasite are drawn to flowers whose nectar and pollen have a medicinal effect, a Dartmouth-led study shows. The findings suggest that plant chemistry could help combat the decline of bee species.
The ancestry of man's best friend is more complicated than its furry coat and soulful eyes betray. Understanding the evolutionary history of the domesticated dog may help protect endangered wolves, according to a study from the University of Tennessee, Knoxville. Vladimir Dinets, research assistant professor of psychology, has published an overview examining the system used to classify dogs and related animals. He has proposed a scientific classification scheme to make sense of the contradictory claims.
In a first-of-its-kind exploratory study, the Translational Genomics Research Institute has identified a potential gene associated with the initiation of the most common cause of liver damage. Nonalcoholic fatty liver disease is the most common cause of liver damage. In this study, published in the September edition of Translational Research, TGen scientists sequenced microRNAs from liver biopsies, spelling out their biochemical molecules to identify several potential gene targets associated with NAFLD-related liver damage.
Water sampling and aerial photography by researchers at the Virginia Institute of Marine Science show that the algal blooms currently coloring lower Chesapeake Bay are among the most intense and widespread of recent years.
At the bottom of a frigid Antarctic lake, a thin layer of green slime is generating a little oasis of oxygen, a team including UC Davis researchers has found. It's the first modern replica discovered of conditions on Earth two and a half billion years ago, before oxygen became common in the atmosphere. The discovery is reported in a paper in the journal Geology.
Medical research has yet to discover an Alzheimer's treatment that effectively slows the disease's progression, but neuroscientists at UC Santa Barbara may have uncovered a mechanism by which onset can be delayed by as much as 10 years.
For over 30 years, Terrie Williams has been studying exercise physiology in animals: African lions and wild dogs, dolphins and whales, coyotes and mountain lions, as well as a few human athletes. She has put mountain lions on treadmills and strapped heart-rate monitors onto big-wave surfers at Mavericks. These studies have given Williams a unique perspective on exercise and health, which she presents in an article titled 'The Healthy Heart: Lessons from Nature's Elite Athletes.'