Ancestry of polar bears traced to Ireland
Big step forward for SKA
An international team of scientists has discovered that the female ancestor of all living polar bears was a brown bear that lived in the vicinity of present-day Britain and Ireland just prior to the peak of the last ice age -- 20,000 to 50,000 years ago. The research is expected to help guide future conservation efforts for polar bears, which are listed as threatened under the Endangered Species...
Blog - Gwyneth Jones, TR:SF author
The discovery potential of the future international SKA radio telescope has been glimpsed following the commissioning of a working optical fibre link between CSIRO's Australian SKA Pathfinder telescope in Western Australia, and other radio telescopes across Australia and New Zealand.
California groundwater management trickles up from local sources
Announcing the second author in our upcoming science fiction anthology....
Cancer patients with blood clots gain no benefit from adding IVCF to fondaparinux
In a typical year, California gets about 30 percent of its water from groundwater wells. Yet when it comes to managing this precious resource, the state of California relies on a mixed bag of more than 2,000 local water agencies with varying degrees of authority. But some water districts have moved forward with innovative ideas on conservation -- even without state leadership.
Cellular origin of deadly brain cancer is identified
Cancer patients with blood clots -- which occur in one of every 200 cancer patients and are the second most common cause of death among cancer patients -- gain no benefit from the insertion of an inferior vena cava filter (IVCF) to the anticoagulant medication fondaparinux (Arixtra), according to research presented today at the 14th World Conference on Lung Cancer, hosted by the International...
Chesapeake Bay pesticides: Some diminish, some persist
Using a mouse genetic system co-developed by researchers at the University of Oregon and Stanford University, a research team led by UO biologist Hui Zong has isolated the cellular origin for malignant glioma, a deadly human brain cancer.
Concussion baseline important for accurate future assessment in at-risk youth athletes
Scientists with the US Department of Agriculture are identifying factors that influence pesticide levels in the Chesapeake Bay airshed, including traces of "legacy" pesticides that still linger even though they are no longer being used.
Control of gene expression: Mediator MED26 shifts an idling polymerase into high gear
Creating a baseline for each youth athlete is a critical part of accurate future concussion assessment, according to researchers presenting their study at the American Orthopaedic Society for Sports Medicine's Annual Meeting in San Diego. Differences in how females and males scored on a standardized concussion assessment tool were also investigated.
Cortisol controls recycling of bile acids
A report from the Conaway lab at the Stowers Institute for Medical Research in the July 8, 2011, edition of the journal Cell identifies a switch that allows RNA polymerase to shift gears from neutral into drive and start transcribing. This work sheds light on a process fundamental to all plant or animal cells and suggests how transcriptional anomalies could give rise to tumors.
Craniosynostosis, delayed tooth eruption and supernumerary teeth -- 1 gene in background
Cortisol is responsible for the recycling of bile acids from the blood, discovered scientists of the German Cancer Research Center. If this recycling is disrupted, the animals develop gallstones and lose weight because they are no longer able to digest dietary fats. They also use more energy for heat production. The researchers assume that regulation of recycling serves the purpose of conserving...
Device captures ambient electromagnetic energy to drive small electronic devices
Researchers at the University of Helsinki, Finland, have described a new, recessively inherited human syndrome featuring craniosynostosis, maxillary hyperplasia, delayed tooth eruption and extra teeth. The researchers also identified causative mutations in a gene IL11RA.
Differing lifestyles: A study of ethnicity and health
Researchers have discovered a way to capture energy transmitted by such sources as radio and television transmitters and cell phone networks. By scavenging this ambient energy from the air around us, the technique could provide a new way to power networks of wireless sensors or other devices.
Discovery of natural antibody brings a universal flu vaccine a step closer
A new study has brought into focus how policymakers and health providers can take into account variations in lifestyle among different ethnic groups.
DNA decoded by FSU biologist reveals 7 new mice species
Annually changing flu vaccines with their hit-and-miss effectiveness may soon give way to a single, near-universal flu vaccine, according to a new report from scientists at the Scripps Research Institute and the Dutch biopharmaceutical company Crucell. They describe an antibody that, in animal tests, can prevent or cure infections with a broad variety of influenza viruses, including seasonal and...
Drug 'shield' helps target antibiotic resistant bacteria
After living incognito for millions of years in a remote area of a forested mountain range in the Philippines, seven new-found species of mice owe their recent discovery to DNA evidence and the Florida State University biologist who deciphered it.
Endosonography followed by surgical staging improves quality of life, according to ASTER study
A new technique which targets antibiotic-resistant bacteria and shields patients from the toxic parts of an antibiotic drug has been developed by Cardiff University scientists.
Evolution and domestication of seed structure shown to use same genetic mutation
Patients who underwent endoscopic testing prior to surgery for lung cancer had significantly better quality of life at the end of the staging process, with no significant difference in costs between the two strategies, according to data presented at the 14th World Conference on Lung Cancer in Amsterdam, hosted by the International Association for the Study of Lung Cancer.
Global investments in green energy up nearly a third to $211 billion
For the first time, scientists have identified a mutation in plants that was selected twice -- during both natural evolution and domestication.The mutation has been identified as the source of variation in the evolution of fruit morphology in Brassica plants and it was also the source of key changes during the domestication of rice.
Gold nanoparticles bring scientists closer to a treatment for cancer
Wind farms in China and small-scale solar panels on rooftops in Europe were largely responsible for last year's 32 percent rise in green energy investments worldwide according to the latest annual report on renewable energy investment trends issued by the UN Environment Programme.Last year, investors pumped a record $211 billion into renewables -- about one-third more than the $160 billion...
Graft size and patient age may be predictor of need for future ACL revisions
Scientists at the University of Southampton have developed smart nanomaterials, which can disrupt the blood supply to cancerous tumors.
Graphene: What can go wrong? new studies point to wrinkles, process contaminants
A smaller sized hamstring graft in an anterior cruciate ligament reconstruction patient less than 20 years old may increase revision rates, according to research presented at the American Orthopaedic Society for Sports Medicine's Annual Meeting in San Diego today.
Half-matched transplants widen pool of donors for leukemia and lymphoma
Using a combination of sophisticated computer modeling and advanced materials analysis techniques at synchrotron laboratories, a research team has demonstrated how some relatively simple processing flaws can seriously degrade the otherwise near-magical electronic properties of graphene.
Heart disease and stroke worldwide tied to national income
Identifying a suitable donor for leukemia and lymphoma patients who need bone marrow transplants may be far easier now that results of two clinical trials show transplant results with half-matched bone marrow or umbilical cord blood are comparable to fully matched tissue, thanks in large part to the availability of effective antirejection drugs and special post-transplant chemotherapy. The...
Herschel finds source of cosmic dust in a stellar explosion
An analysis of heart disease and stroke statistics collected in 192 countries by the World Health Organization shows that the relative burden of the two diseases varies widely from country to country and is closely linked to national income, according to researchers at the University of California, San Francisco.
ESA's Herschel Space Observatory is helping unravel the mystery of where cosmic dust comes from. Thanks to the resolution and sensitivity of Herschel, astronomers have been able to detect cosmic dust from a supernovae, adding weight to the theory that these cosmic fireworks are responsible for its creation.