Learning languages does require a certain effort on behalf of the learner, but it shouldn't take the fun out of your holidays. And why should it do when you've got a travel phrasebook and translator all in the palm of your hand? From helping you out with day-to-day small talk to finding the way or sampling the local cuisine, iSayHello will literally do the talking for you. Every word and every sentence is pronounced clearly by professional native speakers thus benefiting you in two ways: thanks to its excellent audio output, not only will iSayHello speak on your behalf ...

CHICAGO --- The biggest cause of stress for people who care for loved ones after a stroke may not be worrying about the affected family member. Rather, surprising new research from Northwestern Medicine shows that a lack of understanding and help from friends and relatives causes the most stress and the greatest threat to a caregiver's own health and well-being. These and other stressors, like simply trying to take care of themselves and their families along with the demands of caregiving can cause caregivers to report signs of anxiety and depression. The findings ...

University of Oregon scientists have invented a method to change the color of single photons in a fiber optic cable. The laser-tweaked feat could be a quantum step forward for transferring and receiving high volumes of secured data for future generations of the Internet. The proof-of-concept experiment is reported in a paper about work led by UO physicist Michael G. Raymer that appeared in the Aug. 27 issue of Physical Review Letters. In a separate paper also published by the same journal on Sep. 15, Raymer and collaborators at the University of Bath in the United Kingdom ...

LOS ANGELES (September 29, 2010) – A team of researchers lead by Fatih M. Uckun, MD, PhD, of The Saban Research Institute of Childrens Hospital Los Angeles has determined that radiation resistance in leukemia can be overcome by selectively attacking a molecular target known as SYK tyrosine kinase. B-lineage acute lymphoblastic leukemia (ALL) is the most common cancer occurring in children and adolescents. Despite having received intensive chemotherapy, some patients have recurring disease, known as relapse. For these individuals, the prospect of long-term survival ...

Early Online Releases: 1. Depression Symptoms and Low Physical Activity May Keep Dialysis Patients from Working Efforts to Improve Mood and Activity Might Help Patients Remain Employed Many patients with kidney failure employed during the year before beginning dialysis are no longer employed early in their first year of treatment. A recent survey by Nancy Kutner, PhD (Emory University) and her colleagues indicates that depression and reduced physical activity may play a role. Among 585 dialysis patients who had worked in the previous year, only 191 (32.6%) continued ...

The ability to efficiently generate patient-specific stem cells from differentiated cells and then reliably direct them to form specialized cells (like neurons or muscle) has tremendous therapeutic potential for replacing diseased or damaged tissues. However, despite some successes, there have been significant limitations associated with existing methods used to generate human induced pluripotent stem cells (iPSCs). Now, a study published by Cell Press on September 30th in the journal Cell Stem Cell presents a novel strategy for creating iPSCs that exhibits some significant ...

One in seven couples worldwide has difficulty conceiving a child, and male infertility is thought to account for nearly half of those cases. Although the cause of male infertility is often unknown, scientists have now discovered a genetic alteration that disrupts sperm production in otherwise healthy men. The research, published by Cell Press on September 30th in the American Journal of Human Genetics, provides new insight into one cause of male infertility. "Many genes are known to be essential for the production of sperm, but there are surprisingly few single gene changes ...

Paleontologists have unearthed the first extinct penguin with preserved evidence of scales and feathers. The 36-million-year-old fossil from Peru shows the new giant penguin's feathers were reddish brown and grey, distinct from the black tuxedoed look of living penguins. The new species, Inkayacu paracasensis, or Water King, was nearly five feet tall or about twice the size of an Emperor penguin, the largest living penguin today. "Before this fossil, we had no evidence about the feathers, colors and flipper shapes of ancient penguins. We had questions and this was ...

RIVERSIDE, Calif. – Last year, 720 people in the United States became infected with West Nile virus, a potentially serious illness that is spread through the bite of a mosquito – the Culex mosquito – that has first fed on infected birds. Such mosquitoes have the virus eventually located in their salivary glands and transmit the disease to humans and animals when they bite to draw blood. To understand the genetic makeup of the Culex mosquito, and how the insect is able to transmit this and other viruses, an international team of scientists, led by geneticists at the ...

MEDFORD/SOMERVILLE, Mass.--Researchers from Tufts University School of Engineering and MIT have reported a new way to biosynthesize important precursors to the potent anti-cancer compound Taxol in an engineered strain of E. coli bacteria. The findings are significant steps on the way to achieving cost-effective, large-scale production of Taxol and the effort to design new Taxol-like pharmaceuticals. The work is reported in the October 1, 2010, issue of the journal Science. Taxol (paclitaxel) and its structural analogs are among the most powerful and commercially ...

Chestnut Hill, Mass. (9/30/2010) – Scientists have sequenced the genome of the Southern house mosquito, providing new insights into the most diverse and widespread of three groups of disease-bearing mosquitoes and shedding new light on the transmission of mosquito-borne diseases such as malaria, encephalitis, West Nile virus and filariasis, international teams of researchers report in the upcoming edition of the journal Science. Breeding in drains, cesspools and other polluted water bodies, Culex quinquefasciatus feeds on blood from birds, livestock and humans and transmits ...

Ethnicity is a contributing risk factor of cardiovascular problems in kidney recipients of South Asian origin post-transplant, according to a study appearing in an upcoming issue of the Clinical Journal of the American Society Nephrology (CJASN). South Asians comprise 25% of all Canadian visible minorities and have a higher risk for cardiovascular disease in the general population. However, the risk of cardiovascular events has never been studied in this minority population. To investigate, G.V. Ramesh Prasad, MBBS, MSc, FRCPC, FACP, FASN (University of Toronto) and ...

A North Carolina State University researcher is part of a team that has discovered fossilized feathers from a giant penguin that lived near the Equator more than 36 million years ago. These feathery fossils reveal color patterns in an ancient extinct penguin species, and offer clues to how modern penguin feathers evolved. The penguin in question – dubbed Inkayacu paracasensis, or Water King – dates from the late Eocene period and stood almost five feet tall. The fossil was discovered near the Paracas Reserve, located along the eastern coastline of Peru. A research team ...

COLUMBIA, Mo.– It might seem obvious that a dinosaur's leg bone connects to the hip bone, but what came between the bones has been less obvious. Now, researchers at the University of Missouri and Ohio University have found that dinosaurs had thick layers of cartilage in their joints, which means they may have been considerably taller than previously thought. The study is being published this week in the journal PLoS ONE (Public Library of Science). "Our study of the limbs of modern-day relatives of dinosaurs shows that dinosaurs were significantly taller than original ...

CAMBRIDGE, Mass. -- MIT researchers and collaborators from Tufts University have now engineered E. coli bacteria to produce large quantities of a critical compound that is a precursor to the cancer drug Taxol, originally isolated from the bark of the Pacific yew tree. The tree's bacteria can produce 1,000 times more of the precursor, known as taxadiene, than any other engineered microbial strain. The technique, described in the Oct. 1 issue of Science, could bring down the manufacturing costs of Taxol and also help scientists discover potential new drugs for cancer and ...

1st October 2010 - The Culex quinquefasciatus mosquito poses a significant threat to human health as a blood-sucking transmitter of elephantiasis-causing worms and encephalitis-inducing viruses. An international team of scientists, including researchers from the University of Geneva and the SIB Swiss Institute of Bioinformatics sequenced its genome and studied its responses to pathogen infections. Two articles published in today's issue of Science, describe results from comparing the Culex mosquito with the malaria mosquito, Anopheles gambiae, and the dengue mosquito, Aedes ...

The role of a key nutrient which prevents cataracts in salmon has been revealed by eye specialists at the University of East Anglia. Research published today in the American Journal of Physiology - Regulatory, Integrative and Comparative Physiology shows how the nutrient histidine, when added to the diet of farmed salmon, stops cataracts (clouding of the lens in the eye) from forming. Following fears over BSE in the early 1990s, blood meal was removed from the diet of farmed salmon. This coincided with a large increase in the incidence of cataracts which cause economic ...

CAMBRIDGE, Mass. -- When it comes to intelligence, the whole can indeed be greater than the sum of its parts. A new study co-authored by MIT, Carnegie Mellon University, and Union College researchers documents the existence of collective intelligence among groups of people who cooperate well, showing that such intelligence extends beyond the cognitive abilities of the groups' individual members, and that the tendency to cooperate effectively is linked to the number of women in a group. Many social scientists have long contended that the ability of individuals to fare ...

TORONTO, Ont., September 30, 2010 — South Asian men and women have more than twice the risk of suffering a heart attack after a kidney transplant, according to a study led by St. Michael's nephrologist Dr. Ramesh Prasad. The study, published today in the Clinical Journal of the American Society of Nephrology, studied 864 patients who underwent a transplant between 1998 and 2007. Researchers analyzed and compared the group's risk for a heart attack, angioplasty and bypass surgery rates, and death from heart disease after a kidney transplant with Caucasian, black and East ...

Women in South Africa who underwent human papillomavirus (HPV) DNA-based testing or visual inspection of the cervix followed by treatment of test-positive women with cryotherapy had a statistically significant reduction in high grade cervical cancer precursors, compared with women in a control group, according to a study published online Sept. 30 in The Journal of the National Cancer Institute. In many developing countries, especially in sub-Saharan Africa, cytology-based screening is unavailable. To counter this lack of availability, non-cytological screening methods ...

GALVESTON, Texas — An international research team has determined the DNA sequence of the mosquito species whose bite transmits West Nile virus, St. Louis encephalitis virus and the microscopic worm responsible for elephantiasis. University of Texas Medical Branch at Galveston researchers played a vital part in the push to sequence the genome of Culex quinquefasciatus, applying expertise gained through more than a decade of studying the mosquito species and the viruses it spreads. The UTMB scientists collaborated with researchers at 38 other institutions on the project, ...

PHOENIX, Ariz. — Sept. 30, 2010 — DNA methylation — a modification of DNA linked to gene regulation — is altered with increasing severity in a blood cancer called multiple myeloma, according to a study by Mayo Clinic and the Translational Genomics Research Institute (TGen). And at specific points of DNA, "global hypomethylation," in which many genes lose the modification, may be associated with the step-by-step development of myeloma, according to a scientific paper published this month in the journal Cancer Research. "This is the first study to show that hypomethylation ...

Italian researchers report that liver transplant candidates who have a strong religious connection have better post-transplant survival. This study also finds that religiosity—regardless of cause of death—prolongs the life span of individuals who underwent liver transplantation. Full findings are now available online and in the October issue of Liver Transplantation. a journal published by Wiley-Blackwell on behalf of the American Association for the Study of Liver Diseases (AASLD). Much of the medical profession today is focused on the delivery of services, rather than ...

An Australian study of identical twins shows that a rare genetic form of epilepsy can be caused by a genetic mutation that occurs in the embryo, and not necessarily passed down from parents. The study was led by the University of Melbourne and Austin Health and published in the New England Journal of Medicine. Professor Berkovic, Director of the Comprehensive Epilepsy Program at Austin Health and Epilepsy Research Centre at the University of Melbourne and lead investigator on the study said this is an exciting finding revealing how a mutation in the embryo can cause ...

Philadelphia, PA, 30 September, 2010 - There is growing evidence that two neurotransmitters - dopamine and glutamate - are abnormal in people with psychotic illness, including schizophrenia. Among many other things, these chemicals play a role in cognitive functions, such as memory, learning, and problem-solving. A new study in Biological Psychiatry is now the first to examine the relationship between these two brain chemicals by measuring both in the same individuals. Dr. James Stone and colleagues studied people with sub-threshold psychotic symptoms, who were at ...