Is Sparkling Water Bad For Your Teeth?
Sparkling water this decade is like baby formula of the 2010s; the target of a strange culture war that claims it has evidence of a public health crisis.
Sparkling water this decade is like baby formula of the 2010s; the target of a strange culture war that claims it has evidence of a public health crisis.
An enormous eruption has found its way to Earth after travelling for many thousands of years across space. Studying this blast with ESA's XMM-Newton and Integral space observatories, astronomers have discovered a dead star belonging to a rare group: the magnetars.X-Rays from the giant outburst arrived on Earth on 22 August 2008, and triggered an automatic sensor on the NASA-led, international Swift satellite. Just twelve hours later, XMM-Newton zeroed in and began to collect the radiation, allowing the most detailed spectral study of the decay of a magnetar outburst.
Autistics are up to 40 percent faster at problem-solving than non-autistics, according to a new Université de Montréal and Harvard University study published in Human Brain Mapping. As part of the investigation, participants were asked to complete patterns in the Raven's Standard Progressive Matrices (RSPM) test that measures hypothesis-testing, problem-solving and learning skills. While autism is a common neurodevelopmental disability characterized by profound differences in information processing and analysis, this study showed that autistics have efficient reasoning abilities that build on their perceptual strengths.
In 1987, Robert Bork became the target of an organized, special interest smear campaign aimed at ruining his chances for being confirmed by the Senate as a Supreme Court justice. Since then, a tit-for-tat approach has made Supreme Court appointments a political football.These politicized Supreme Court nomination battles have eroded public support of the high Court and a study of public reactions during the Samuel Alito nomination process shows it is only going to get worse.In a new book, researchers reveal how television advertisements that opposed Alito's nomination in 2005 had a disturbing side effect: Many people who viewed those highly political ads become less supportive of the Supreme Court as an institution.
A completely new species has been discovered in the Russian mountains!Sorry, it's not Bigfoot or Yeti or Abominable Snowman or Bumble or whatever he is called where you are from, though "Bigfoot Found!" on the cover with a big "No" inside would certainly be a strategy worthy of some other science publications. Instead, it is a much more scientific discovery; a plant root. Professor Hans Cornelissen and his Russian-Dutch team describe this finding in Ecology Letters.The root belongs to the small alpine plant Corydalis conorhiza and unlike normal roots, which grow into soil, they extend upward through layers of snow. Given this novel behavior, the scientists have termed them 'snow roots'.
Researchers here have used sediment from the deep ocean bottom to reconstruct a record of ancient climate dating back more than 500,000 years. The data were extracted from the top 65 feet of a 1,312 foot sediment core drilled in 2005 in the North Atlantic Ocean by the Integrated Ocean Drilling Program. The results provide some new information about the four glacial cycles that occurred during that period. While climate records from ice cores can show resolutions with individual annual layers, ocean sediment cores are greatly compressed with resolutions sometimes no finer than millennia.
The interstellar stuff that became incorporated into the planets and life on Earth has younger cosmic roots than theories predict, according to the University of Chicago postdoctoral scholar Philipp Heck and his international team of colleagues.Heck and his colleagues examined 22 interstellar grains from the Murchison meteorite for their analysis. Dying sun-like stars flung the Murchison grains into space more than 4.5 billion years ago, before the birth of the solar system. Scientists know the grains formed outside the solar system because of their exotic composition.
Is Internet expression a fundamental right? Certainly a subset of the modern generation has demonstrated an irrational sense of entitlement about free content, to the detriment of media companies that have tried to provide it like the New York Times, but parts of copyrighted material have always been allowed under fair use. What if court interpretation of fair use has changed?University of Arkansas law professor Ned Snow says current judicial interpretation of fair use, a 150-year-old doctrine that allows people to use copied material in their speech, has become so constricted that it inhibits speech.
Scientists say they have succeeded in treating immune cells in a way that enables them to inhibit unwanted immune reactions such as organ rejection. Their results have now been published in the Journal of Cellular and Molecular Medicine.The immune system keeps us healthy: day and night it protects us against invading and harmful pathogens. But this fulltime surveillance can also turn into a problem, for example after an organ transplant. The immune system recognizes the new organ as "foreign" and starts fighting it. In the end, the life-saving transplant will be rejected. Until now, only special drugs have managed to keep the immune system silent and thus inhibit organ rejection.
Darwin knew that some mechanism had to govern how our physical features and behavioral traits have evolved over centuries, passing from a parent to their offspring with natural selection favoring those that give the greatest advantage for survival, but he did not have a scientific explanation for this process. Scientists for decades have believed that differences in the way genes are expressed into functional proteins is what differentiates one species from another and drives evolutionary change but no one has been able to prove it - until now, say researchers at the University of Leeds.
It's two inches long, is shaped like a phallus and is commonly associated with wood. A middle school joke? No, it's a new species of stinkhorn mushroom discovered on the African island of Sao Tome and named after Robert Drewes, Curator of Herpetology at the California Academy of Sciences.Phallus drewesii belongs to a group of mushrooms known as stinkhorns which give off a foul, rotting meat odor. There are 28 other species of Phallus fungi worldwide, but this particular species is notable for its small size, white net-like stem, and brown spore-covered head. It is also the only Phallus species to curve downward instead of upward.
A team of researchershas discovered a biological marker for neovascular age-related macular degeneration (AMD), the leading cause of blindness in older adults. The marker, a receptor known as CCR3, shows strong potential as a means for both the early detection of the disease and for preventive treatment. Neovascular (or "wet-type") macular degeneration is caused by choroidal neovascularization (CNV) – the invasive growth of new blood vessels in the thin vascular layer that provides nourishment and oxygen to the eye. Central vision loss occurs when these abnormal blood vessels invade the retina, the light-sensitive tissue that lines the inner surface of the eyeball.
Dr Jennifer Loveland-Curtze and a team of scientists from Pennsylvania State University say that a bacterium trapped more than a mile under under glacial ice in Greenland for over 120,000 years may hold clues as to what life forms might exist on other planets.