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recent generations are experiencing higher rates of arthritis




in an analysis of the canadian population born between the 1930s and 1960s, each succeeding generation had a higher prevalence of arthritis.the prevalence of arthritis increased over time especially in obese individuals. "overall increases due to obesity were partially offset by concurrent increases...



tooth loss linked to an increased risk of dementia




in a study of 1566 community-dwelling japanese elderly who were followed for 5 years, the risk of developing dementia was elevated in individuals with fewer remaining teeth. individuals with 10-19, 1-9, and no teeth had 62%, 81%, and 63% higher risks of dementia, respectively, than individuals with ...



hubble showcases a remarkable galactic hybrid




image: ugc 12591 lies just under 400 million light-years away from us in the pisces-perseus supercluster. view more credit: esa/hubble & nasathis nasa/esa hubble space telescope image showcases the remarkable galaxy ugc 12591. ugc 12591 sits somewhere between a lenticular and a spiral. it lies just...



cancer-causing benzene found in e-cigarette vapors operated at high power




portland state university scientists have found that significant levels of cancer-causing benzene in e-cigarette vapors can form when the devices are operated at high power. the finding by a research team headed by chemistry professor james f. pankow were published march 8 in the online journal plos...



newer medications can cure hcv infections




a new analysis reveals a dramatic transformation in the care of patients infected with hepatitis c virus (hcv) as more effective and tolerable medications have become available.in an analysis of all hcv antiviral treatment regimens (n=107,079) initiated from 1999 through 2015 in the us veterans affa...



the making of music | eurekalert! science news




these days, it's a territory mostly dominated by the likes of raffi and the wiggles, but there's new evidence that lullabies, play songs, and other music for babies and toddlers may have some deep evolutionary roots. a new theory paper, co-authored by graduate school of education doctoral student sa...



3-d printing with plants | eurekalert! science news




cambridge, mass. -- for centuries, cellulose has formed the basis of the world's most abundantly printed-on material: paper. now, thanks to new research at mit, it may also become an abundant material to print with -- potentially providing a renewable, biodegradable alternative to the polymers curre...



lead dressed like gold | eurekalert! science news




image: study co-authors from left to right: renan cabrera, herschel rabitz, denys bondar, and andre campos view more credit: c. todd reichart, department of chemistry at princeton universitysince the middle ages, alchemists have sought to transmute elements, the most famous example being the long q...



redefining 'species' | eurekalert! science news




image: hybrids between blue-winged and golden-winged warblers -- sometimes called "brewster's " warblers -- pose a challenge for ornithologists trying to agree on how to define species. view more credit: lloyd spitalnikwhat is a species? biologists--and ornithologists in particular--have been debat...



recovering predators and prey | eurekalert! science news




image: predators increasingly are targeting young steller sea lions, making their recovery difficult. view more credit: courtesy of alaska sea life centerif you build it, they will come. that's historically been a common approach to species recovery: grow the prey population first and predators wil...



use of opioid pain medications may affect liver transplant patients' survival




an analysis of nearly 30,000 patients undergoing liver transplantation in the united states between 2008 and 2014 found elevated death and organ loss rates in the first 5 years after transplantation among recipients with the highest use of opioid pain medications while on the waiting list.higher ris...



materials that emit rainbows | eurekalert! science news




image: this is an illustrative summary of the developed organic luminescent material. view more credit: youhei takedamechanochromic luminescent (mcl) materials change their color in response to a change in their environment, like pressure and temperature. to date, most mcl materials only change bet...



biofuel produced by microalgae | eurekalert! science news




image: left panel: light microscopic image of nannochloropsis. lipid droplets look slightly bluish by light refraction. right panel: fluorescence micrograph of that accumulated a large amount of oils. with... view more credit: tokyo institute of technologyin the modern society, energy generation he...



pregnancy-specific β1-glycoproteins | eurekalert! science news




development of new strategies and novel drug design to treat trophoblastic diseases and to provide pregnancy success are of crucial importance in maintenance the female reproductive health. pregnancy specific β1-glycoproteins (psgs) have long been recognized as trophoblast quality and embryo viabil...



sound-shaping super-material invented | eurekalert! science news




a super-material that bends, shapes and focuses sound waves that pass through it has been invented by scientists.the creation pushes the boundaries of metamaterials - a new class of finely-engineered surfaces that perform nature-defying tasks.these materials have already shown remarkable results wit...