You bring questions to your physician, but if your doctor has questions about how to best provide care for you, where does he or she go for answers? Physicians still use paper-based resources, however, a University of Iowa Health Care study focused on pediatricians shows that, in comparison, it takes less than one-third of the time to use the computer to find an answer.
The study, which also shows the effectiveness of training physicians to use computer resources for patient care questions,
Two scientists at Lawrence Livermore National Laboratory have discovered that iron in Earth-core conditions melts at a pressure of 225 GPa (or 32 million pounds per square inch) or about 5,100 kelvins (8,720 degrees Fahrenheit).
Determining the melting point of iron is essential to determine the temperatures at core boundaries and the crystal structure of the Earth’s solid inner core. To date, the properties of iron at high pressure have been investigated experimentally through laser-h
High levels of estrogen may enhance the brain’s response to stress, making women more vulnerable to mental illnesses such as depression and post-traumatic stress disorder (PTSD), according to a Yale study.
This finding may explain why stress-related mental illnesses occur at least twice as often in women as in men. It also may explain why the discrepancy in prevalence begins in women at puberty, continues through the childbearing years, and then declines in postmenopausal years, said B
Early humans migrating from Africa carried small genetic differences like so much flotsam in an ocean current. Today’s studies give only a snapshot of where that genetic baggage came to rest without revealing the tides that brought it there. Now researchers at the Stanford University School of Medicine have devised a model for pinpointing where mutations first appeared, providing a new way to trace the migratory path of our earliest ancestors.
The study was led by Luca Cavalli-Sforza,
Rats housed in unpredictable conditions appear to have a more negative outlook than those housed in stable, settled conditions, according to new research by scientists at Bristol University Veterinary School, published in this week’s issue of Nature.
The researchers found that whether an animal anticipates that something good or bad is going to happen can provide a clue as to the emotion it may be experiencing. Emma Harding, Liz Paul and Mike Mendl from the Centre for Behavioural Biology at
The Myelin Repair Foundation (MRF), a Saratoga, Calif.-based non-profit research foundation, today announced the formation of a consortium of five of the world’s leading scientists in myelin research. By providing the funding, as well as the business and technology infrastructure to support the collaboration, the Myelin Repair Foundation expects to accelerate the research process and deliver targets for palliative treatments for people living with Multiple Sclerosis (MS) in five years.
Dr. B
At the end of the Cretaceous, when large-sized theropods, such as Tyrannosaurus rex, roamed terrestrial environments, shallow seas and oceans were invaded by giant marine monitors – the mosasaurs. A recent investigation, presented in a new dissertation at Lund University in Sweden, has revealed that the Swedish mosasaur fauna is one of the most diverse assemblages known. Moreover, available data indicate that a major faunal turnover occurred about 80 million years ago.
The family Mosasaur
EUREKA project E! 2339 EUROENVIRON GRINDING project has developed an alternative, flexible and environmentally friendly manufacturing technology for the production of gears that can reduce production times from months to a matter of days.
It can be used for all kinds of gears and joints made from treated alloyed steel, heat-resistant nickel or titanium alloys, such as those used in turbine and jet engine blades.
The current production process for industrial gears is expensive in terms of
Long-term research by CSIRO Livestock Industries has proved that selectively breeding sheep for worm resistance can significantly reduce Australian farmers’ traditional reliance on drenching products in high rainfall areas.
Coordinator of the Nemesis project, CSIRO’s Amy Bell, says that over a two-year monitoring period, merino weaners bred for parasitic worm resistance within the project’s demonstration flock required seven fewer drenches to maintain worm levels equivalent t
Scientists at the Babraham Institute have discovered that a tiny change in a protein involved in cell survival is responsible for abnormal cell activity in the early stages of cancer.
The protein, known as Bcl-xL, normally protects cells from dying; and when the DNA in cells becomes damaged, Bcl-xL is modified so that it no longer keeps the cells alive. Hence, the cells with damaged DNA usually die, so preventing them from becoming cancer cells.
However, in the presence of a parti
By continously adapting the receiver settings of a mobile phone to the current conditions, the advantage is twofold; facing bad reception, the connection can be improved while in good conditions, the energy consumption can be reduced. This is possible by an automatic controller developed by Lodewijk Smit of the University of Twente in The Netherlands. Smit did his PhD work on this, within the Centre of Telematics and Information Technology (CTIT).
The mobile connection can be optimized by fr
The omission of radiotherapy after breast-conserving surgery for early-stage breast cancer is associated with higher rates of relapse and a slightly higher mortality rate, according to a study in the January 21 issue of the Journal of the National Cancer Institute.
Many studies have shown that women with early-stage breast cancer who have breast-conserving surgery followed by radiotherapy have similar survival rates as women who have a mastectomy, and those women are also spared the disfigu
Study shows that perception is tied to movement
Our fingers run over surfaces; our eyes are in constant motion. This is all a part of “active sensing,” key principles of which have now been uncovered by a Weizmann Institute study.
“We intuitively understand that active sensing should provide the brain with information very different from that which is acquired by mere passive sensing, (e.g. feeling without finger movement),” says Prof. Ehud Ahissar of the Neurobiology Depart
Weizmann Institute scientists reveal key part of nerve regeneration mechanism
A new study conducted by Weizmann Institute scientists has now uncovered a key process leading to the regeneration of peripheral nerves. Nerves in the peripheral nervous system (any part of the body aside from the brain and spinal cord) are capable of regenerating, though often they do so poorly or slowly. Scientists have been trying to understand how they regenerate in order to better treat damage to the pe
Our cells are resourceful when it comes to copying DNA, even when the DNA is damaged
Billions of cells divide every day in our bodies to replace those that wear out. To be able to do so, their DNA must be copied. A new Weizmann Institute study shows that the molecules in charge of the task of copying DNA — called DNA polymerases — are able to improvise in order to achieve this crucially important goal. This new insight into DNA replication and repair could assist in the diagnosis an
NASA’s Earth satellite observing systems are helping the U.S. Department of Agriculture Foreign Agricultural Service (FAS) improve the accuracy and timeliness of information they provide about important crops around the world. FAS information is crucial in decisions affecting U.S. agriculture, trade policy, and food aid.
NASA and the University of Maryland are providing the FAS with observations and data products from instruments on NASA’s Aqua and Terra satellites and from the TO
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