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How Neuronal Activity Is Timed In The Brain's Memory-Making Circuits
Theta oscillations are a type of prominent brain rhythm that orchestrates neuronal activity in the hippocampus, a brain area critical for the formation of new memories. For several decades these oscillations were believed to be "in sync" across the hippocampus, timing the firing of neurons like a sort of central pacemaker. A new study conducted by researchers at the California Institute of Technology (Caltech) argues that this long-held assumption needs to be revised. In a paper published in this week"s issue of the journal Nature, the researchers showed that instead of being in sync, theta oscillations actually sweep along the length of the hippocampus as traveling waves.
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New Survey Shows Americans Strongly Support Guaranteed Dental Coverage In Healthcare Reform
Nearly 2 in 3 U.S. adults (63%) think that it is important that dental coverage is part of an overall health reform package, and 40 percent say it is very important, according to a new public opinion survey commissioned by Oral Health America. The survey, sponsored by the Dental Trade Alliance Foundation, and conducted by Harris Interactive(R), was released today at the launch of National Smile Month, the largest independent international campaign promoting good dental care including brushing, regular dental visits, and healthy food choices as well as the need for effective oral healthcare policies.
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Availability Of Diagnostic Tests Drive Success In Hospitalist-Run Short-Stay Units
The most important factors for a successful stay in hospital short-stay units (SSUs) are the types of diagnostic tests performed and whether or not specialty consultations are needed. When hospitalists staff these units, they can ensure that only patients who need readily accessible services are admitted. These are the findings of a study published today in the Journal of Hospital Medicine.
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Surgeons Warn: Skateboarding Tough On Feet, Ankles

Children and young adults love the thrill of skateboarding. They learn to master their skills of "riding the rail" and "catching air." But according to the American College of Foot and Ankle Surgeons (ACFAS), such tricks, while fun, can be physically demanding and cause serious foot and ankle injuries. Foot and ankle surgeons around the country warn they continue to see serious lower-extremity skateboard injuries among their patients. These injuries range from minor bruises to open wounds or cuts to more serious foot and ankle sprains and fractures, which may require surgical repair. Virginia-based foot and ankle surgeon, Jennifer Purvis, DPM, AACFAS, advises skateboarders to use caution and wear protective gear, including properly supportive shoes, when skateboarding. "Skateboarding can be particularly hard on your feet and ankles because of the impact caused when performing jumps and tricks," Dr. Purvis explains. "Skateboarders should be aware that the strain from repetitive, forceful motions can also cause painful foot and heel conditions such as plantar fasciitis, bone spurs and Achilles tendonitis, which may require more intensive, longer-term therapies," she said. Even minor cuts or abrasions on your feet can cause serious problems. Dr. Purvis recently treated a 21-year-old skateboarder for scrapes on his feet and ankles that were not healing. Tests indicated he had contracted MRSA - a very serious and sometimes deadly staph infection, which required surgery and four weeks of antibiotic therapy. Foot and ankle sprains and fractures are common skateboarding injuries. Karl Collins, DPM, FACFAS, who practices in St. Louis, stresses the importance of seeing a foot and ankle surgeon to ensure proper diagnosis and course of treatment for these injuries. Until you can be seen by a doctor, it is best to take a break from activities and use R.I.C.E. therapy (Rest, Ice, Compression, and Elevation), which helps to reduce pain and control swelling around the injury. "A common misconception about foot and ankle fractures is that if you can walk on the foot, there isn"t a fracture," Dr. Collins said. "That"s not always the case, and only a proper diagnosis can rule out a serious injury requiring an advanced treatment plan." American College of Foot and Ankle Surgeons


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