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168,100 articles from ScienceDaily
Finally mapped: The brain region that distinguishes bits from bounty
- ScienceDaily
- 13/9/5 20:28
In comparing amounts of things -- be it the grains of sand on a beach, or the size of a sea gull flock inhabiting it -- humans use a part of the brain that is organized topographically, researchers have finally shown. In other words, the neurons that work to make this "numerosity" assessment are laid out in a shape that allows those most closely related to communicate and interact over the...
Human gut microbes alter mouse metabolism, depending on diet
- ScienceDaily
- 13/9/5 20:28
Germ-free mice that received gut bacteria from obese humans put on more weight and accumulated more fat than mice that were given bacteria from the guts of lean humans, according to a new study.
Inner-ear disorders may cause hyperactivity
- ScienceDaily
- 13/9/5 20:28
Behavioral abnormalities are traditionally thought to originate in the brain. But a new study has found that inner-ear dysfunction can directly cause neurological changes that increase hyperactivity. The study, conducted in mice, also implicated two brain proteins in this process, providing potential targets for...
Interstellar winds buffeting our solar system have shifted direction
- ScienceDaily
- 13/9/5 20:28
Scientists have discovered that the particles streaming into the solar system from interstellar space have likely changed direction over the last 40 years.
Molecular beacons light path to cardiac muscle repair
- ScienceDaily
- 13/9/5 20:28
Having a pure population of cardiac muscle cells is essential for avoiding tumor formation after transplantation, but has been technically challenging. Researchers have developed a method for purifying cardiac muscle cells from stem cell cultures using molecular beacons.
Protecting 17 percent of Earth's land could save two-thirds of plant species
- ScienceDaily
- 13/9/5 20:28
Protecting key regions that comprise just 17 percent of Earth's land may help preserve more than two-thirds of its plant species, according to a scientists.
Relationship between landscape simplification and insecticide use explored
- ScienceDaily
- 13/9/5 20:28
A new study that analyzed US Department of Agriculture Census of Agriculture data spanning two decades (1987-2007) shows that the statistical magnitude, existence, and direction of the relationship between landscape simplification -- a term used for the conversion of natural habitat to cropland -- and insecticide use varies enormously year to...
Scientists confirm existence of largest single volcano on earth
- ScienceDaily
- 13/9/5 20:28
Scientists have uncovered the largest single volcano yet documented on Earth. Covering an area roughly equivalent to the British Isles or the state of New Mexico, this volcano, dubbed the Tamu Massif, is nearly as big as the giant volcanoes of Mars, placing it among the largest in the Solar...
Certification of aquaculture: one of the strategies to sustainable seafood production
- ScienceDaily
- 13/9/5 20:27
Certification of products from aquatic farming - aquaculture – is contributing to sustainable production, but it also has serious limits. Therefore it should be seen as one approach among many for steering aquaculture toward sustainability, experts say.
Powerful jets discovered blowing material out of galaxy
- ScienceDaily
- 13/9/5 20:27
Astronomers using a worldwide network of radio telescopes have found strong evidence that a powerful jet of material propelled to nearly light speed by a galaxy's central black hole is blowing massive amounts of gas out of the galaxy. This process, they said, is limiting the growth of the black hole and the rate of star formation in the galaxy, and thus is a key to understanding how galaxies...
Deep-ocean carbon sinks: Basic research on dark ocean microorganisms
- ScienceDaily
- 13/9/5 19:41
Although microbes that live in the so-called "dark ocean"-- below a depth of some 600 feet where light doesn't penetrate -- may not absorb enough carbon to curtail global warming, they do absorb considerable amounts of carbon and merit further study, according to a study.
New system developed to better study behavior, cell function
- ScienceDaily
- 13/9/5 19:41
A team of researchers has successfully translated a new technology to better study behaviors and cellular function of fruit flies. This powerful genetic tool allows scientists to selectively, rapidly, reversibly, and dose-dependently remotely control behaviors and physiological processes in the fly which shares a significant degree of similarity to...
400-year study finds Northeast forests resilient, changing
- ScienceDaily
- 13/9/5 19:40
A new study reveals how much -- and how little -- Northeastern forests have changed after centuries of intensive land use.
Body's 'safety procedure' could explain autoimmune disease
- ScienceDaily
- 13/9/5 19:40
Researchers have found an important safety mechanism in the immune system that may malfunction in people with autoimmune diseases, such as Multiple Sclerosis, potentially paving the way for innovative treatments.
Clues in coral bleaching mystery
- ScienceDaily
- 13/9/5 19:40
Coral reefs are tremendously important for ocean biodiversity. Unfortunately they have been in great decline in recent years, much of it due to the effects of global climate change. One such effect, called bleaching, occurs when the symbiotic algae that are essential for providing nutrients to the coral either lose their identifying photosynthetic pigmentation and their ability to perform...
Female tiger sharks migrate from Northwestern to Main Hawaiian Islands during fall pupping season
- ScienceDaily
- 13/9/5 19:40
A quarter of the mature female tiger sharks plying the waters around the remote coral atolls of the Northwestern Hawaiian Islands decamp for the populated Main Hawaiian Islands in the late summer and fall, swimming as far as 2,500 kilometers (1,500 miles) according to new...
Overgrazing turning parts of Mongolian Steppe into desert
- ScienceDaily
- 13/9/5 19:40
Overgrazing by millions of sheep and goats is the primary cause of degraded land in the Mongolian Steppe, one of the largest remaining grassland ecosystems in the world, researchers say in a new report. The degraded land holds implications both for local food production and global...
Peering into genetic defects, scientists discover a new metabolic disease
- ScienceDaily
- 13/9/5 19:40
Scientists have discovered a new disease related to an inability to process Vitamin B12. The disorder is rare but can be devastating.
Prion-like proteins drive several diseases of aging
- ScienceDaily
- 13/9/5 19:40
Two leading neurology researchers have proposed a theory that could unify scientists' thinking about several neurodegenerative diseases and suggest therapeutic strategies to combat them.
Space around others perceived just as our own
- ScienceDaily
- 13/9/5 19:40
A new study has shown that neurons in our brain 'mirror' the space near others, just as if this was the space near ourselves. The study sheds new light on a question that has long preoccupied psychologists and neuroscientists regarding the way in which the brain represents other people and the events that happens to those...
Cell death protein could offer new anti-inflammatory drug target
- ScienceDaily
- 13/9/5 19:39
Scientists have revealed the structure of a protein that is essential for triggering a form of programmed cell death called necroptosis, making possible the development of new drugs to treat chronic inflammatory diseases such as Crohn’s disease and rheumatoid arthritis.
Dialectical behavioral therapy improves adherence in teens with chronic illness
- ScienceDaily
- 13/9/5 19:37
Dialectical Behavioral Therapy shows early evidence as an effective tool in improving medical regimen adherence in adolescents with chronic kidney disease, enabling them to accept their illness, have a better quality of life and gain eligibility for organ transplantation.
Molecular marker predicts patients most likely to benefit longest from two popular cancer drugs
- ScienceDaily
- 13/9/5 19:37
Scientists have identified a molecular marker called “Mig 6” that appears to accurately predict longer survival -- up to two years -- among patients prescribed two of the most widely used drugs in a class of anticancer agents called EGFR inhibitors.
Some immune cells appear to aid cancer cell growth
- ScienceDaily
- 13/9/5 19:37
A new study found that a subset of immune cells provide a niche where cancer stem cells survive.
Arresting model stops cars
- ScienceDaily
- 13/9/5 17:40
Researchers in China have developed a mathematical model that could help engineers design a flexible vehicle-arrest system for stopping cars involved in criminal activity or terrorism, such as suspect car bombers attempting break through a check point, without wrecking the car or killing the...