New report: The reach and impact of mathematical sciences
2013-01-10
The Mathematical Sciences in 2025, a new report from the National Research Council, finds that the mathematical sciences are an increasingly integral component of many disciplines -- including biology, medicine, the social sciences, business, advanced design, and climate studies. However, the expanding role of the mathematical sciences over the past 15 years has not been matched by a comparable increase in federal funding, and the number of federal agencies that provide significant support for this research is considerably smaller than the number that profit from it.
The ...
Is there a period of increased vulnerability for repeat traumatic brain injury?
2013-01-10
New Rochelle, NY, January 10, 2013—Repeat traumatic brain injury affects a subgroup of the 3.5 million people who suffer head trauma each year. Even a mild repeat TBI that occurs when the brain is still recovering from an initial injury can result in poorer outcomes, especially in children and young adults. A metabolic marker that could serve as the basis for new mild TBI vulnerability guidelines is described in an article in Journal of Neurotrauma, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available free on the Journal of Neurotrauma ...
New tool to help brain surgeons 1 step closer to operating room
2013-01-10
WEST LAFAYETTE, Ind. - A new tool that could allow for faster, more comprehensive testing of brain tissue during surgery successfully identified the cancer type, grade and tumor margins in five brain surgery patients, according to a Purdue University and Brigham and Women's Hospital study.
The tool sprays a microscopic stream of charged solvent onto the tissue surface to gather information about its molecular makeup and produces a color-coded image that reveals the nature and concentration of tumor cells.
Researchers analyzed specimens removed from the patients, but ...
Scientists design, control movements of molecular motor
2013-01-10
ATHENS, Ohio (Jan. 10, 2013)—An international team of scientists has taken the next step in creating nanoscale machines by designing a multi-component molecular motor that can be moved clockwise and counterclockwise.
Although researchers can rotate or switch individual molecules on and off, the new study is the first to create a stand-alone molecular motor that has multiple parts, said Saw-Wai Hla, an Ohio University professor of physics and astronomy who led the study with Christian Joachim of A*Star in Singapore and CEMES/CNRS in France and Gwenael Rapenne of CEMES/CNRS. ...
Giant tobacco plants that stay young forever
2013-01-10
The life of tobacco plants is short. They grow for around three to four months, followed by flowering and then die. Their size is also limited, with plants only growing to about one-and-a-half to two meters tall. Now, researchers at the Fraunhofer Institute for Molecular Biology and Applied Ecology IME in Münster have located the tobacco plant's very own fountain of youth, which means they can keep it forever young. The Münster-based researchers discovered a genetic switch which can prevent the plants from change blooming to flowering. This also averts the plants' early ...
Surgeons may use hand gestures to manipulate MRI images in OR
2013-01-10
WEST LAFAYETTE, Ind. — Doctors may soon be using a system in the operating room that recognizes hand gestures as commands to tell a computer to browse and display medical images of the patient during a surgery.
Surgeons routinely need to review medical images and records during surgery, but stepping away from the operating table and touching a keyboard and mouse can delay the procedure and increase the risk of spreading infection-causing bacteria, said Juan Pablo Wachs, an assistant professor of industrial engineering at Purdue University.
"One of the most ubiquitous ...
Which study strategies make the grade?
2013-01-10
Students everywhere, put down those highlighters and pick up some flashcards! Some of the most popular study strategies — such as highlighting and even rereading — don't show much promise for improving student learning, according to a new report published in Psychological Science in the Public Interest, a journal of the Association for Psychological Science.
In the report, John Dunlosky of Kent State University and a team of distinguished psychological scientists review the scientific evidence for ten learning techniques commonly used by students.
"Schools and parents ...
Cutting in and weaving irritate drivers the most, new CAMH study on road rage shows
2013-01-10
January 10, 2013 (Toronto) - Cutting in and weaving, speeding, and hostile displays are among the top online complaints posted by drivers, according to a new study by the Centre for Addiction and Mental Health (CAMH) recently published in an online issue of Accident Analysis and Prevention.
Driver aggression is a major safety concern and researchers estimate this behaviour is a factor in nearly half of all motor vehicle collisions. Identifying the underlying causes and strategies for preventing driver aggression continues to be a priority.
CAMH researcher Dr. Christine ...
High-frequency stock trading of little value to investors, general public
2013-01-10
The increase in the speed of stock trading from microseconds to nanoseconds leads to an increase in order cancellation, but little else of value to investors and the general public, says research by a University of Illinois business professor.
According to a forthcoming study by Mao Ye, a professor of finance at Illinois, the arms race in speed at the sub-millisecond level of stock trading is a "purely positional game" in which a trader's payoff depends on transaction speed relative to other traders.
"There are lots of extreme views about high-frequency trading, but ...
Decline in available liver transplants expected
2013-01-10
A new study, funded in part by the National Institutes of Health (NIH) and Health Resources and Services Administration, and published in the January 2013 issue of Liver Transplantation, a journal of the American Association for the Study of Liver Diseases (AASLD), found that the non-use of donor livers climbed through 2010 due to a worsening of donor liver quality, primarily from donation following cardiac death. Diabetes, donor age, and body mass index (BMI) were also linked to a decrease in use of organs.
"For patients with end-stage liver disease, transplantation ...
Lower nitrogen losses with perennial biofuel crops
2013-01-10
URBANA – Perennial biofuel crops such as miscanthus, whose high yields have led them to be considered an eventual alternative to corn in producing ethanol, are now shown to have another beneficial characteristic–the ability to reduce the escape of nitrogen in the environment. In a 4-year University of Illinois study that compared miscanthus, switchgrass, and mixed prairie species to typical corn-corn-soybean rotations, each of the perennial crops were highly efficient at reducing nitrogen losses, with miscanthus having the greatest yield.
"Our results clearly demonstrate ...
This week in Blood: Jan. 10, 2013
2013-01-10
Welcome to "This Week in Blood," a weekly snapshot of the hottest studies from each week's issue of Blood, the official journal of the American Society of Hematology (ASH), hand-picked by Blood Editor-in-Chief Bob Löwenberg, MD, and Deputy Editor Nancy Berliner, MD.
Systemic delivery of a TLR7 agonist in combination with radiation primes durable anti-tumor immune responses in mouse models of lymphoma, Dovedi et al.
This week's plenary paper offers a promising potential new immunotherapeutic modality for the treatment of lymphoma. The authors present convincing data ...
Helping patients navigate new cancer drugs
2013-01-10
EAST LANSING, Mich. — As cancer treatment in pill form transforms how care is delivered, a new Michigan State University study underscores the challenges patients face in administering their own chemotherapy outside the supervised environment of a cancer clinic.
Chemotherapy pills can target specific cancers better than some traditional intravenous drugs, said Sandra Spoelstra, an MSU assistant professor of nursing who led the study. But they also can be difficult for patients to take.
"Prescriptions for some oral pills have complex instructions," Spoelstra said. ...
Measuring genomic response to infection leads to earlier, accurate diagnoses
2013-01-10
DURHAM, N.C. -- Duke researchers are looking to genomic technologies – not the isolation of bacteria or viruses – to quickly detect and diagnose infectious diseases such as the flu and staph.
Two studies appearing online Jan. 9, 2013, both in the journal PLOS ONE, show how a pattern of genomic information among infected individuals can be used to accurately pinpoint the cause of infection.
"Traditional diagnostic tests for infectious diseases rely on detecting the specific illness-causing pathogens. So you only find what you're looking for," said Geoffrey Ginsburg, ...
Stem cells may hold promise for Lou Gehrig's disease
2013-01-10
SAN DIEGO – Apparent stem cell transplant success in mice may hold promise for people with amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease. The results of the study were released today and will be presented at the American Academy of Neurology's 65th Annual Meeting in San Diego, March 16 to 23, 2013.
"There have been remarkable strides in stem cell transplantation when it comes to other diseases, such as cancer and heart failure," said study author Stefania Corti, MD, PhD, with the University of Milan in Italy and a member of the American Academy of Neurology. ...
Baby sharks stay still to avoid being detected by predators
2013-01-10
VIDEO:
This is a video clip of a bamboo shark embryo responding to an electrical stimulus by ceasing gill movements.
Click here for more information.
Baby sharks still developing in their egg cases can sense when predators are near, and keep very still to avoid being detected, according to research published January 9 in the open access journal PLOS ONE by Ryan Kempster from the University of Western Australia and colleagues.
Adult sharks are known to use highly sensitive ...
Deal or no deal: 5 year olds make smart decisions in games of risk
2013-01-10
You may have to be over a certain age to be a contestant on "Deal or No Deal", but children as young as five start to maximize their profits - in cookies - when making decisions similar to those on the show, according to research published January 9 in the open access journal PLOS ONE by Valerie Dufour and colleagues from the National Center for Scientific Research in France.
Children aged 3-9 were given a cookie and presented the option to either keep it or exchange it for one of 6 identical cups containing cookies. The cookies in the cups could be larger, smaller or ...
Genetic form of anemia offers new avenue to treating drug-resistant tumors
2013-01-10
VIDEO:
This is an intravital microscopy of the skin window of tumors in mice injected with
SSRBCs or NLRBCs.
Click here for more information.
The genetic mutation that causes sickle cell anemia also turns red blood cells into potent tumor killers and may offer a new way to treat some cancers that are resistant to existing treatments, according to research published January 9 in the open access journal PLOS ONE by David S. Terman of Jenomic Research Institute and colleagues ...
Brown eyes appear more trustworthy than blue
2013-01-10
People view brown-eyed faces as more trustworthy than those with blue eyes, except if the blue eyes belong to a broad-faced man, according to research published January 9 in the open access journal PLOS ONE by Karel Kleisner and colleagues from Charles University in the Czech Republic.
The study's results attempt to answer a larger question: What makes us think a person's face looks trustworthy? The authors asked study participants to rate male and female faces for trustworthiness based on two features: eye color and face shape. A significant number of participants found ...
Sickle cells show potential to attack aggressive cancer tumors
2013-01-10
DURHAM, N.C. – By harnessing the very qualities that make sickle cell disease a lethal blood disorder, a research team led by Duke Medicine and Jenomic, a private cancer research company in Carmel, Calif., has developed a way to deploy the misshapen red blood cells to fight cancer tumors.
Reporting in the Jan. 9, 2013, edition of the on-line journal, PLOS ONE, the researchers describe a process of exploiting sickle-shaped red blood cells to selectively target oxygen deprived cancer tumors in mice and block the blood vessels that surround them.
"Sickle cells appear ...
Johns Hopkins scientists use Pap test fluid to detect ovarian, endometrial cancers
2013-01-10
Using cervical fluid obtained during routine Pap tests, scientists at the Johns Hopkins Kimmel Cancer Center have developed a test to detect ovarian and endometrial cancers. In a pilot study, the "PapGene" test, which relies on genomic sequencing of cancer-specific mutations, accurately detected all 24 (100 percent) endometrial cancers and nine of 22 (41 percent) ovarian cancers. Results of the experiments are published in the January 9 issue of the journal, Science Translational Medicine.
The investigators note that larger scale studies are needed before clinical implementation ...
Mapping the Milky Way: Radio telescopes give clues to structure, history
2013-01-10
Astronomers have discovered hundreds of previously-unknown sites of massive star formation in the Milky Way, including the most distant such objects yet found in our home Galaxy. Ongoing studies of these objects promise to give crucial clues about the structure and history of the Milky Way.
The scientists found regions where massive young stars or clusters of such stars are forming. These regions, which astronomers call HII (H-two) regions, serve as markers of the Galaxy's structure, including its spiral arms and central bar.
"We're vastly improving the census of our ...
Mount Sinai researchers foresee new therapies and diagnostics for deadly fibrotic diseases
2013-01-10
A team of scientists has developed a playbook for ending the devastating impact of fibrotic diseases of the liver, lung, kidney, and other organs, which are responsible for as many as 45 percent of all deaths in the industrialized world. Despite the prevalence of these illnesses, which are caused by buildup of scar tissue, there are no approved antifibrotic drugs on the market in the U.S. A top fibrosis expert from the Icahn School of Medicine at Mount Sinai and three other institutions have described drug targets and compounds they hope will prove broadly effective in ...
Drug-resistant melanoma tumors shrink when therapy is interrupted
2013-01-10
Researchers in California and Switzerland have discovered that melanomas that develop resistance to the anti-cancer drug vemurafenib (marketed as Zelboraf), also develop addiction to the drug, an observation that may have important implications for the lives of patients with late-stage disease.
The team, based at the University of California, San Francisco (UCSF), the Novartis Institutes for Biomedical Research (NIBR) in Emeryville, Calif., and University Hospital Zurich, found that one mechanism by which melanoma cells become resistant to vemurafenib also renders them ...
The farthest supernova yet for measuring cosmic history
2013-01-10
What if you had a "Wayback Television Set" and could watch an entire month of ancient prehistory unfold before your eyes in real time? David Rubin of the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) presented just such a scenario to the American Astronomical Society (AAS) meeting in Long Beach, CA, when he announced the discovery of a striking astronomical object: a Type Ia supernova with a redshift of 1.71 that dates back 10 billion years in time. Labeled SN SCP-0401, the supernova is exceptional for its detailed spectrum and precision ...
[1] ... [4721]
[4722]
[4723]
[4724]
[4725]
[4726]
[4727]
[4728]
4729
[4730]
[4731]
[4732]
[4733]
[4734]
[4735]
[4736]
[4737]
... [8158]
Press-News.org - Free Press Release Distribution service.