Some bacterial cells can swim, morph into new forms and even become dangerously virulent - all without initial involvement of DNA. Yale University researchers describe Friday in the journal Science how bacteria accomplish this amazing feat - and in doing so provide a glimpse of what the earliest forms of life on Earth may have looked like.
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AUSTIN, Texas—An international team of conservation scientists from Australia, the United Kingdom and United States, including University of Texas at Austin Professor Camille Parmesan, call for new conservation tactics, such as assisted migration, in the face of the growing threat of climate change.
They report their policy ideas in a paper published July 18 in the journal Science.
Many species must move to new areas to survive climate change. Often, this seems impossible. Species stranded on mountain tops in southern Europe that are becoming too hot for them, for instance, are unlikely to be able to reach northern Europe unaided. So should WE step in to help?
A team of researchers at the University of California, San Diego School of Medicine has uncovered a new signaling mechanism used to activate protein kinases that are critical for the body's inflammatory response. Their work will be published in the July 18 online edition of Science (Science Express.).
PORTLAND, Ore. – Researchers at Oregon Health & Science University have devised an ultrasound imaging technique that picks up subtle early evidence of peripheral arterial disease (PAD) that current conventional tests miss.
BEER-SHEVA, ISRAEL - The news that olives are sources of "good fat" has increased worldwide demand for the luscious, versatile fruits. Olives have become extremely popular, enjoyed as condiments, appetizers, spreads, and additions to salads and sauces. Their heart-healthy oil has is also enjoying superstar status in kitchens around the world.
New York, NY – The AIDS Vaccine Advocacy Coalition (AVAC) today urged Dr. Anthony Fauci and the U.S. National Institute of Allergy and Infectious Diseases (NIAID) to act swiftly to clarify the path ahead suggested by the announcement that NIAID would not go forward with the proposed PAVE 100 AIDS vaccine trial but would, instead, consider a smaller trial of the same candidate. AVAC also calls on leaders in the field to make clear commitments of financing, leadership and scientific exploration to further the search for an AIDS vaccine.
(Washington, D.C. - July 17, 2008) The U.S. Environmental Protection Agency has released a report that discusses the potential impacts of climate change on human health, human welfare, and communities in the U.S. The report, entitled "Analyses of the Effects of Global Change on Human Health and Welfare and Human Systems," also identifies adaptation strategies to help respond to the challenges of a changing climate and identifies near- and long-term research goals for addressing data and knowledge gaps.
Every moment we live, cells in our bodies are dying. One type of cell death activates an immune response while another type doesn't. Now researchers at Washington University School of Medicine in St. Louis and St. Jude's Children's Research Hospital in Memphis have figured out how some dying cells signal the immune system. They say the finding eventually could have important implications in the treatment of autoimmune diseases and cancer.
WASHINGTON, July 17----Scientists have created an instrument designed to help determine the shapes and sizes of tiny ice crystals typical of those found in high-altitude clouds, down to the micron level (comparable to the tiniest cells in the human body), according to a new study in Optics Letters, a journal published by the Optical Society. The data produced using this instrument likely will help improve computer models used to predict climate change.
CHICAGO -- When patients are discharged from the emergency department, their recovery depends on carefully following the doctors' instructions for their post care at home. Yet a vast majority of patients don't fully understand what they are supposed to do, and most are not even aware of the chasm in their understanding.
Montreal, July 17, 2008 – A group of Canadian and European researchers have unlocked the mystery of a gene with the potential to both regulate and block ovulation. The new study – a collaboration between the Université de Montréal in Canada and the Institut de génetique et biologie moléculaire et cellulaire of the Université de Louis Pasteur, Strasbourg, France – is published in the latest issue of the journal Genes & Development.
BET DAGAN, ISRAEL - Table grapes are subject to serious water loss and decay while making the long trip from the vine to dinner tables around the world. Mold and browning of the stems are the two main factors that reduce grape quality during shipping and storage in retail produce sections.
Professors Peter Timms and Ken Beagley from Queensland University of Technology's Institute of Health and Biomedical Innovation (IHBI) said the vaccinated koalas, which are at Brisbane's Lone Pine Koala Sanctuary, were mounting a good response to the vaccine.
"A good T-cell immune response is essential if the vaccine is to be effective," Professor Timms said.
"This initial trial will measure only the animals' immune response and will not involve any live chlamydial infections.
After soliciting and considering broad input from the scientific and HIV advocacy communities, the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health (NIH), has determined that it will not conduct the HIV vaccine study known as PAVE 100. However, NIAID believes the vaccine developed by its Vaccine Research Center (VRC) is scientifically intriguing and sufficiently different from previously tested HIV vaccines to consider testing it in a smaller, more focused clinical study.