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Cats outsmarted in psychologist`s test Cats are not stupid, they're just different. Photograph: Getty It will cause outrage among some cat owners, but research suggests the pets are not as clever as some humans think they are – or at l... Big News NetworkDeforestation Causes `Boom-and-bust` Development In The Amazon Clearing the Amazon rainforest increases Brazilian communities' wealth and quality of life, but these improvements are short-lived, according to new research published in Science. The study shows that levels of development revert back to well below national average levels when the loggers and land clearers move on. Science dailyWhy Aren`t Birds Dinosaur-Sized? Think about it for a moment: if birds are directly descended from dinosaurs--and if they're the distant cousins of pterosaurs, some genuses of which attained wingspans of 30 or 35 feet--then why are modern flying birds so small that the largest species (a type of swan) only weighs about 30 pounds? Now, a research team from the university of Washington's Burke Museum thinks it has found the answer. It turns out that flying birds need to constantly molt their feathers, and if the bird is too big (with too much surface area), the molting process can't proceed fast enough, resulting in non-aerodynamic bald spots that would sent the unfortunate avian plunging into the sea. What gives this theory its 'ah-hah!' quality is that avian weight (despite what you might think) is only a minor consideration when flying. Ancient pterosaurs like Tapejara and Tupuxuara were much heftier than modern birds, and there's every indication that they took the skies as often as bald eagles. The difference, of AboutScientists identify gene vital to early embryonic cells forming a normal heart and skull [NEWS] New research from Cincinnati Children's Hospital Medical Center highlights the critical role a certain gene and its protein play during early embryonic development on formation of a normal heart and skull. In a study posted online June 15 by the Proceedings of the national academy of Sciences, a research team at Cincinnati Children's reports that too little of the gene/protein SHP2 interferes with the normal developmental activity of what are called neural crest cells. These cell… LifeSciencesWorld.comProtein regulates movement of mitochondria in brain cells [NEWS] scientists have identified a protein in the brain that plays a key role in the function of mitochondria – the part of the cell that supplies energy, supports cellular activity, and potentially wards off threats from disease. The discovery, which was reported today in the Journal of Cell Biology, may shed new light on how the brain recovers from stroke. “Understanding the molecular machinery that helps distribute mitochondria to different parts of the cell has only recently b… LifeSciencesWorld.comNew Method Separates Cancer Cells From Normal Cells The vast majority of cancer deaths are due to metastasis, the spread of cancer cells from its primary site to other parts of the body. These metastatic cells tend to move more than their non-metastatic variants but this movement is poorly understood. scientists are studying cancer cells intently with the hope they can learn to control the movements of the dangerous cells. Medical News TodayThey Are Young And Need The Job: A Second Chance For Dangerous T Cells The immune system's T-cells react to foreign protein fragments and therefore are crucial to combating viruses and bacteria. Errant cells that attack the body's own material are in most cases driven to cell death. Some of these autoreactive T-cells, however, undergo a kind of reeducation to become 'regulatory T-cells' that keep other autoreactive T-cells under control. Medical News TodayRNA Snippet Suppresses Spread Of Aggressive Breast Cancer A low cellular level of a tiny fragment of RNA appears to increase the spread of breast cancer in mouse models of the disease, according to researchers at Whitehead Institute for Biomedical Research. Measuring levels of this so-called microRNA, which is also associated with metastatic breast cancer in humans, may more accurately predict the likelihood of metastasis (which accounts for 90% of cancer-related deaths) and ultimately help determine patient prognoses. Medical News TodayM+W Zander completes Malaysia factory for Q-Cells Engineering company M+W Zander has designed and built a new solar cell manufacturing facility for Q-Cells in Malaysia. Renewable Energy WorldHaving A Higher Purpose In Life Reduces Risk Of Death Among Older Adults Possessing a greater purpose in life is associated with lower mortality rates among older adults according to a new study by researchers at Rush university Medical Center. Patricia A. Boyle, PhD, and her colleagues from the Rush Alzheimer's Disease Center, studied 1,238 community-dwelling elderly participants from two ongoing research studies, the Rush Memory and Aging Project and the Minority Aging Research Study. None had dementia. Medical News Today1 2 3 |
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