Philadelphia, Pa. (November 16. 2012) – Meningiomas are a common type of benign brain tumor that sometimes grows dramatically in pregnant women. A new study suggests that this sudden tumor growth likely results from "hemodynamic changes" associated with pregnancy, reports the November issue of Neurosurgery, official journal of the Congress of Neurological Surgeons. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health. The study also identifies some key characteristics associated with rapid growth of meningiomas in pregnant women. ...

New research on posttraumatic stress disorder (PTSD) in soldiers challenges popular assumptions about the origins and trajectory of PTSD, providing evidence that traumatic experiences in childhood - not combat - may predict which soldiers develop the disorder. Psychological scientist Dorthe Berntsen of Aarhus University in Denmark and a team of Danish and American researchers wanted to understand why some soldiers develop PTSD but others don't. They also wanted to develop a clearer understanding of how the symptoms of the disorder progress. "Most studies on PTSD in ...

HOUSTON -- (Nov. 19, 2012) -- Rice University scientists have unveiled a revolutionary new technology that uses nanoparticles to convert solar energy directly into steam. The new "solar steam" method from Rice's Laboratory for Nanophotonics (LANP) is so effective it can even produce steam from icy cold water. Details of the solar steam method were published online today in ACS Nano. The technology has an overall energy efficiency of 24 percent. Photovoltaic solar panels, by comparison, typically have an overall energy efficiency around 15 percent. However, the inventors ...

INDIANAPOLIS -- The approach of the Indianapolis Discovery Network for Dementia -- with contributions from family members, community advocates, health care systems and researchers -- improves dementia care and informs dementia research, according to a new study by researchers from the Regenstrief Institute and the Indiana University Center for Aging Research. "Collaborative dementia care -- sensitive to local needs and concerns -- combines human interaction of all those involved plus technology. Regular face-to-face meetings of caregivers, clinicians and researchers provide ...

(PHILADELPHIA) – Take off those Thanksgiving pounds with a week at a spa retreat. A new study shows that not only are they relaxing and nourishing, but they are safe and a week-long spa stay can correspond with changes in our physical and emotional well-being. New research from Thomas Jefferson University Hospital evaluated 15 participants before and after their visit to We Care Spa, a health and wellness spa in Desert Hot Springs California, and found the program safe and helped to improve the participants' health. Their complete findings will be available in the ...

TAMPA, Fla. (Nov. 19, 2012) – In three studies published in the current issue of Technology and Innovation – Proceedings of the National Academy of Inventors®, innovators unveil creative technologies that could change our sources of energy, change our use of energy, and change our lives. Untapped energy in the oceans The kinetic energy in the Florida Current and in Florida's ocean waves can be captured and used, said Howard P. Hanson of the Southeast National Marine Renewable Energy Center at Florida Atlantic University. "Capturing the kinetic energy of the Florida ...

HOUSTON -- (Nov. 19, 2012) -- Serendipity proved to be a key ingredient for the latest nanoparticles discovered at Rice University. The new "lava dot" particles were discovered accidentally when researchers stumbled upon a way of using molten droplets of metal salt to make hollow, coated versions of a nanotech staple called quantum dots. The results appear online this week in the journal Nanotechnology. The researchers also found that lava dots arrange themselves in evenly spaced patterns on flat surfaces, thanks in part to a soft outer coating that can alter its shape ...

West Orange, NJ. November 19, 2012. The 'Global Perspectives' published in the Nov. 20, 2012 issue of Neurology®, the medical journal of the American Academy of Neurology, features "Neurologic Disability: A Hidden Epidemic for India". The authors, a team of US and Indian scientists, detail three emerging trends contributing to this public heath problem and outline measures to stem its growth. Abhijit Das, MD, DM, Amanda Botticello, PhD, MPH, and Glenn Wylie, DPhil, are researchers at Kessler Foundation in West Orange, New Jersey. Kurupath Radhakrishnan, MD, DM, FAAN, is ...

PHILADELPHIA — Several fatal brain disorders, including Parkinson's disease, are connected by the misfolding of specific proteins into disordered clumps and stable, insoluble fibrils called amyloid. Amyloid fibrils are hard to break up due to their stable, ordered structure. For example, α-synuclein forms amyloid fibrils that accumulate in Lewy Bodies in Parkinson's disease. By contrast, protein clumps that accumulate in response to environmental stress, such as heat shock, possess a less stable, disordered architecture. Hsp104, an enzyme from yeast, breaks up both ...

LEXINGTON, Ky. (Nov. 19, 2012) — A new study review published by the University of Kentucky found that music therapy can be beneficial to patients before, during and after a surgical procedure and may reduce pain and recovery time. Published in the Southern Medical Journal, the review examined the use of music in the preoperative, intraoperative and postoperative stages of the surgical process, and music was shown to have positive results in all three stages. Patients were less anxious before the procedure and recovered more quickly and satisfactorily after by being exposed ...

"Who in his wildest dreams could have imagined that, beneath the crust of our Earth, there could exist a real ocean...a sea that has given shelter to species unknown?" So wrote Jules Verne almost 150 years ago in A Journey to the Center of the Earth. Verne probably couldn't have imagined the diversity of life that researchers observe today under the ocean floor. Scientists affiliated with the National Science Foundation (NSF) Center for Dark Energy Biosphere Investigations (C-DEBI) will discuss recent progress in understanding life beneath the seafloor at the American ...

Seattle Children's Research Institute, together with an international team of scientists and clinicians from 22 other institutions, have identified two genetic risk factors for the most common form of non-syndromic craniosynostosis, a birth defect in which the bony plates of an infant's skull prematurely fuse. The condition is known as sagittal craniosynostosis and often results in an abnormal head shape and facial features. The study identified two genes (BMP2 and BBS9) associated with sagittal craniosynostosis that are known to be involved in broader skeletal development. Results ...

Washington, DC — A team of scientists, including Carnegie's Conel Alexander and Jianhua Wang, studied the hydrogen in water from the Martian interior and found that Mars formed from similar building blocks to that of Earth, but that there were differences in the later evolution of the two planets. This implies that terrestrial planets, including Earth, have similar water sources--chondritic meteorites. However, unlike on Earth, Martian rocks that contain atmospheric volatiles such as water, do not get recycled into the planet's deep interior. Their work will be published ...

Researchers at the University of Iowa have discovered a new cause of hydrocephalus, a devastating neurological disorder that affects between one and three of every 1,000 babies born. Working in mice, the researchers identified a cell signaling defect, which disrupts immature brain cells involved in normal brain development. By bypassing the defect with a drug treatment, the team was able to correct one aspect of the cells' development and reduce the severity of the hydrocephalus. The findings were published online Nov. 18 in the journal Nature Medicine. "Our findings ...

The flooding in New York and New Jersey caused by Superstorm Sandy prompted calls from Gov. Andrew Cuomo and other officials to consider building storm surge barriers to protect Lower Manhattan from future catastrophes. But, such a strategy could make things even worse for outlying areas that were hit hard by the hurricane, such as Staten Island, the New Jersey Shore and Long Island's South Shore, a City College of New York landscape architecture professor warns. "If you mitigate to protect Lower Manhattan, you increase the impact in other areas," says Catherine Seavitt ...

PHILADELPHIA— Medical physicists at Thomas Jefferson University and Jefferson's Kimmel Cancer Center are one step closer to bringing a new tumor-tracking technique into the clinic that delivers higher levels of radiation to moving tumors, while sparing healthy tissue in lung cancer patients. Evidence has shown a survival advantage for lung cancer patients treated with higher doses of radiation. Therefore, there is an increased interest to find novel ways to better track tumors—which are in constant motion because of breathing—in order to up the dosage during radiation ...

DNA sequences obtained from a handful of patients with multiple sclerosis at the University of California, San Francisco (UCSF) Medical Center have revealed the existence of an "immune exchange" that allows the disease-causing cells to move in and out of the brain. The cells in question, obtained from spinal fluid and blood samples, are called B cells, which normally help to clear foreign infections from the body but sometimes react strongly with the body itself. One of the current theories of multiple sclerosis, which strikes hundreds of thousands of Americans and millions ...

UNIVERSITY PARK, Pa. -- Whether bloggers are writing to change the world, or just discussing a bad break-up, they may get an extra boost of motivation from traffic-measuring and interactive tools that help them feel more connected to and more influential in their communities, according to researchers. In a series of studies, female bloggers showed that they enjoyed blogging because it made them feel empowered and part of a community, said Carmen Stavrositu, who recently completed doctoral work in mass communications at Penn State. The studies also indicated that the sheer ...

Supercomputer simulations have revealed that a type of oddly dim, exploding star is probably a class of duds—one that could nonetheless throw new light on the mysterious nature of dark energy. Most of the thousands of exploding stars classified as type Ia supernovae look similar, which is why astrophysicists use them as accurate cosmic distance indicators. They have shown that the expansion of the universe is accelerating under the influence of an unknown force now called dark energy; yet approximately 20 type Ia supernovae look peculiar. "They're all a little bit ...

LA JOLLA, CA – November 19, 2012 – Deciphering what causes the brain cell degeneration of Parkinson's disease has remained a perplexing challenge for scientists. But a team led by scientists from The Scripps Research Institute (TSRI) has pinpointed a key factor controlling damage to brain cells in a mouse model of Parkinson's disease. The discovery could lead to new targets for Parkinson's that may be useful in preventing the actual condition. The team, led by TSRI neuroscientist Bruno Conti, describes the work in a paper published online ahead of print on November 19, ...

COLUMBUS, Ohio – A study using a unique new instrument on the world's largest optical telescope has revealed the likely origins of especially bright supernovae that astronomers use as easy-to-spot "mile markers" to measure the expansion and acceleration of the universe. In a paper to appear in the Astrophysical Journal, researchers describe observations of recent supernova 2011fe that they captured with the Large Binocular Telescope (LBT) using a tool created at Ohio State University: the Multi-Object Double Spectrograph (MODS). MODS measures the frequencies and intensities ...

Yale School of Medicine researchers have found that children born to mothers who smoked more than one pack per day during pregnancy struggled on tests designed to measure how accurately a child reads aloud and comprehends what they read. The findings are published in the current issue of The Journal of Pediatrics. Lead author Jeffrey Gruen, M.D., professor of pediatrics and genetics at Yale School of Medicine, and colleagues analyzed data from more than 5,000 children involved in the Avon Longitudinal Study of Parents and Children (ALSPAC), a large-scale study of ...

Astronomers using infrared data from the Subaru Telescope in Hawaii have discovered a "super-Jupiter" around the bright star Kappa Andromedae, which now holds the record for the most massive star known to host a directly imaged planet or lightweight brown dwarf companion. Designated Kappa Andromedae b (Kappa And b, for short), the new object has a mass about 12.8 times greater than Jupiter's. This places it teetering on the dividing line that separates the most massive planets from the lowest-mass brown dwarfs. That ambiguity is one of the object's charms, say researchers, ...

Outgassing — the physical process that creates that oh-so-alluring new car smell — isn't healthy for humans and, as it turns out, not particularly wholesome for sensitive satellite instruments, either. But a team of NASA engineers has created a new way to protect those instruments from its ill effects. For some people, the best part about buying a new car is its factory-fresh new car smell, a distinctive aroma created when the chemicals and residual solvents used to manufacture dashboards, car seats, carpeting and other vehicle appointments outgas and fill the cabin. ...

Certain mutated cells keep trying to replicate their DNA — with disastrous results — even after medications rob them of the raw materials to do so, according to new research from USC. New imaging techniques allowed scientists to see for the first time that while chemotherapy drugs shut down the DNA replication process of most cancer cells, so-called "checkpoint mutants" just keep chugging along, unwinding the DNA and creating damaged DNA strands that can result in the kind of abnormalities seen in cancer cells. "Older methods suggested that these checkpoint mutants ...