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  • Key process for space outpost proved on 'vomit comet' ride

    The Moon

    Sifters needed to extract oxygen from celestial soils work in low gravity

    Kevin Mayhood

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    The MoonFlying high over the Gulf of Mexico, researchers from NASA and Case Western Reserve University found a key to unlocking oxygen from the surface of the moon.

    The celestial body has no atmosphere like Earth's, holding the precious element just a breath away. But, oxygen to breathe, grow food, create water and burn rocket fuel – to make a space outpost a reality - is trapped in its soils.

    Scientists from NASA and Case Western Reserve are designing and testing components of an oxygen generator that would extract the element from silicon dioxide and metal oxides in the ground. They have designed sifters needed to produce a consistent supply of oxides. But, how would the sifters work in the moon's gravity, which is about one-sixth as strong as the Earth's?

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  • Genetic discovery could break wine industry bottleneck, accelerate grapevine breeding

    Grapevines and barrels

    Could point the way toward production of European-tasting wines from American vines

    Patrick Regan

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    Grapevines and BarrelsOne of the best known episodes in the 8000-year history of grapevine cultivation led to biological changes that have not been well understood – until now. Through biomolecular detective work, German researchers have uncovered new details about the heredity of Vitis varieties in cultivation today. In the process, they have opened the way to more meaningful classification, accelerated breeding, and more accurate evaluation of the results, potentially breaking a bottleneck in the progress of the wine industry. Their discovery removes a major obstacle to a development already under way – that is, a shift toward grapevine breeding guided by highly specific genetic markers. It may even point the way toward production of European-tasting wines from North American cultivars, free of the "musty" or "foxy" flavors associated with New World grapevines.

    In response to the "great European wine blight" of the mid-1800s, growers aimed at preserving the most desirable qualities of European grapes while breeding in the hardiness of North American varieties. These were naturally resistant to native pests that had found their way – by steamship, most likely – across the Atlantic to Europe. Beginning around 1860, the introduction of two North American pests – an aphid and a fungus – nearly destroyed the wine industry, particularly in France. A century ago, many hybrids were in use, but the wine they produced was judged to be so inferior in flavor that winemakers were prohibited from blending them with higher-quality traditional wines.

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  • HIV vaccine regimen demonstrates modest preventive effect in Thailand clinical study

    Vaccine

    Kathy Stover

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    VaccineIn an encouraging development, an investigational vaccine regimen has been shown to be well-tolerated and to have a modest effect in preventing HIV infection in a clinical trial involving more than 16,000 adult participants in Thailand. Following a final analysis of the trial data, the Surgeon General of the U.S. Army, the trial sponsor, announced today that the prime-boost investigational vaccine regimen was safe and 31 percent effective in preventing HIV infection.

    "These new findings represent an important step forward in HIV vaccine research," says Anthony S. Fauci, M.D., director of the National Institute of Allergy and Infectious Diseases (NIAID), part of the NIH, which provided major funding and other support for the study. "For the first time, an investigational HIV vaccine has demonstrated some ability to prevent HIV infection among vaccinated individuals. Additional research is needed to better understand how this vaccine regimen reduced the risk of HIV infection, but certainly this is an encouraging advance for the HIV vaccine field.

    "We thank the trial staff in Thailand and the United States for their years of effort in successfully conducting this study and the study participants and the people of Thailand for their long-standing support of HIV vaccine research," Dr. Fauci adds.

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Fight Aging!

Reports from the front line in the fight against aging. The science of healthy life extension. Activism and advocacy for longer, healthier lives.
  • Why Are There No 400 Year Old Humans?
    Science is as much about investigating what we do not see as it is about investigating what we do see. For example, from a recent open access paper: Small rodents...
  • Commonalities in Risk Factors for Age-Related Disease
    A great deal of medical research into aging is built upon a foundation of correlation studies: what can we identify as more often occurring for patients who suffer from a...
  • Investigating Metformin's Mechanisms
    Metformin is one of the known calorie restriction mimetics amongst drugs presently in use by the medical establishment. A calorie restriction mimetic is a drug that can reproduce some of...

The Longevity Meme

The latest news, commentary, and opinions on healthy life extension and longevity science.
Longevity Meme
  • Genetic Determinants of Longevity Will Be Complicated
    There will likely be a great many genetic contributions to human longevity, as this open access paper suggests, which in turn means that the genetics of longevity will be a...
  • A Programmed Cancer Therapy Using RNA
    A novel way to assembled a targeted cancer therapy: "Cancer is a difficult disease to treat because it's a personal disease. Each case is unique and based on a combination...
  • The Growth of Epigenetic Studies
    The same genes in different people can produce different metabolisms, and this is largely due to epigenetics: the way in which genes express themselves to form proteins. Studies of epigenetic...

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