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Updated: 1 hour 46 min ago
Scientists paint a more detailed picture of the genomic abnormalities that drive glioblastoma multiforme. Rich data set will underpin research and treatment advances.
Research has found that erratic rainfall -- which could become more irregular as a result of climate change -- could be detrimental to animals that migrate with the dry-wet seasonal cycle. The researchers studied the annual mating migration of the land-dwelling Christmas Island red crab in order to help scientists understand the consequences of climate change for the millions of migratory animals in Earth's tropical zones.
Paying extra bucks to "go green" in a hybrid car may pay off in self-esteem and image for older drivers, as well as give a healthy boost to the environment.
Most microbial researchers grow their cells in petri dishes to study how they respond to stress and damaging conditions. But researchers tried something almost unheard of: Studying microbial survival in ice to understand how microorganisms could survive in ancient permafrost, or perhaps even buried in ice on Mars.
Researchers say study results could increase understanding of brain and speech production, improving treatment.
For a mouse in the wild, spotting aerial predators -- like hawks and owls -- is essential to survival. But how is this visual cue processed into a behavior that helps avoid an attack? Using a video technique, researchers have developed a simple stimulus to spur the mouse's defense plans: to freeze in place, or flee for cover. These visual behaviors also provide information about cell types in the retina responsible for detecting aerial predators.
Economist finds that biofuels, contrary to claims, do not meaningfully affect what drivers pay at the pump.
In the United States, approximately 1.4 million people suffer a traumatic brain injury (TBI) each year. Of those injuries, three out of four are minor TBI (mTBI) -- a head injury that causes a temporary change in mental status including confusion, an altered level of consciousness, or perceptual or behavioral impairments.
A byproduct of the manufacture of pulp using the sulfite process for making paper, sodium lignosulfonate, can be used to immobilize and soak up toxic chromium compounds from soil and water, according to new research.
A new study indicates drought high in the northern Colorado mountains is the primary trigger of a massive spruce beetle outbreak that is tied to long-term changes in sea-surface temperatures from the Northern Atlantic Ocean, a trend that is expected to continue for decades.
Satellite imagery over the southeastern Everglades confirms long-term trends of mangrove expansion and sawgrass habitat loss near the shore.
Our ability to detect heat, touch, tickling and other sensations depends on our sensory nerves. Now, for the first time, researchers have identified a gene that orchestrates the crucially important branching of nerve fibers that occurs during development.
Most of us are infected with the herpesvirus known as Epstein-Barr virus. For most of us, the virus will lead at worst to a case of infectious mononucleosis, but sometimes, and especially in some parts of the world, those viruses are found in association with cancer. Now, researchers have found that the difference between a relatively harmless infection and a cancer-causing one lies at least partly in the viral strain itself.
New research challenges long-standing ideas on how neurotransmitter gets released at neuronal synapses.
Human skin must cope with the sun and other environmental factors that fluctuate in a circadian manner. A study reveals that human skin stem cells deal with these cyclical threats by carrying out different functions depending on the time of day. By activating genes involved in UV protection during the day, these cells protect themselves against radiation-induced DNA damage. The findings could pave the way for new strategies to prevent premature aging and skin cancer.
Research has shown that exercise is good for the brain. Now investigators have identified a molecule called irisin that is produced in the brain during endurance exercise and has neuroprotective effects. Researchers were able to artificially increase the levels of irisin in the blood to activate genes involved in learning and memory. The findings may be useful for designing drugs that utilize this exercise-induced molecule to guard against neurodegenerative diseases and improve cognition.
When people want to direct the attention of others, they naturally do so by pointing, starting from a very young age. Now, researchers have shown that elephants spontaneously get the gist of human pointing and can use it as a cue for finding food. That's all the more impressive given that many great apes fail to understand pointing when it's done for them by human caretakers, the researchers say.
One of the most important proteins implicated in cancer is p53. Researchers have identified a DNA sequence variation in a p53-binding site that is more prevalent in Caucasians than in Africans and is associated with a very large risk of testicular cancer but may protect light-skinned individuals against harmful ultraviolet rays. The study offers insights into the evolution of DNA sequence variations in p53-binding sites, and it could lead to improvements in personalized treatment strategies.
The city of Providence, R.I., is taking the fight against Big Tobacco to a new level with innovative tobacco control policies in the retail environment. A new study details Providence’s efforts and provides a road map for other municipalities to follow.
New research has shown that the stomach naturally produces more stem cells than previously realized, likely for repair of injuries from infections, digestive fluids and the foods we eat.