ScienceDaily: Top News |
- NASA Rover Opportunity views comet near Mars
- Mars Orbiter image shows comet nucleus is small
- Salmonella-infected mice that were given antibiotics became superspreaders
- Built-in billboards: Male bluefin killifish signal different things with different fins
- Mental rest and reflection boost learning, study suggests
- Untangling the biological effects of blue light
- Measuring on ice: Researchers create 'smart' ice skating blade
- Three people infected with Ebola predicted to fly from West Africa every month if no exit screening takes place
- See-through sensors open new window into the brain
- Scientists restore hearing in noise-deafened mice, pointing way to new therapies
- Positive subliminal messages on aging improve physical functioning in elderly
- New study charts the fate of chemicals affecting health, environment
- Siblings of children with autism can show signs at 18 months
- Patients treated with radiation therapy who have tumors in left breast have comparable overall survival to those with tumors in right breast
- See-through, one-atom-thick, carbon electrodes powerful tool to study brain disorders
- Fish tale: New study evaluates antibiotic content in farm-raised fish
- Children who drink non-cow's milk are twice as likely to have low vitamin D
- Sport in old age can stimulate brain fitness, but effect decreases with advancing age
- Heavy metal frost? A new look at a Venusian mystery
- Secrets of dinosaur ecology found in fragile amber
- Massive debris pile reveals risk of huge tsunamis in Hawaii
- Mediterranean, semi-arid ecosystems prove resistant to climate change
- User-friendly electronic 'Eyecane' enhances navigational abilities for blind
- Fish just want to have fun, according to a new study that finds even fish 'play'
- Why your brain makes you reach for junk food
- Brain activity provides evidence for internal 'calorie counter'
- John Lennon commemorated by naming a new tarantula species from South America after him
- Facetless crystals that mimic starfish shells could advance 3-D-printing pills
- Wild molecular interactions in a new hydrogen mixture
- Fairness is in the brain, scientists say
- Breathing sand: New measurement technique detects oxygen supply to bottom of North Sea
- Sexual preference for masculine men, feminine women is an urban habit
- Protocells and information strings: Self-organizing autocatalytic network created in computer model
- Physicists build reversible laser tractor beam
- 1980s American aircraft helps quantum technology take flight
- Winning the war against Human parainfluenza virus
- New antidepressant: Rapid agent restores pleasure-seeking ahead of other antidepressant action
- Design of micro, nanoparticles to improve treatments for Alzheimer's, Parkinson's
- New class of drugs shows promise in treating chronic diarrhea
- Cold sores increase risk of dementia, research suggests
- Earthquakes in the ocean: Towards a better understanding of their precursors
- Goldilocks principle wrong for particle assembly: Too hot and too cold is just right
- Over-organizing repair cells set the stage for fibrosis
- Advances in creating treatment for common childhood blood cancer
- Origins of sex discovered: Side-by-side copulation in distant ancestors
- NASA's Mars Odyssey Orbiter watches comet fly near
- NASA's MAVEN studies passing comet and its effects
- NASA's Mars Reconnaissance Orbiter studies comet flyby
- Head injury causes immune system to attack brain, new study finds
- Viagra protects the heart beyond the bedroom, study finds
- Blind cave fish may provide insight on eye disease, other human health issues
- New tracers can identify frack fluids in the environment
- Heart rate may predict survival, brain function in comatose cardiac arrest survivors
- Aspirin shown to benefit schizophrenia treatment
- Fish intake associated with boost to antidepressant response
- Panic attacks associated with fear of bright daylight
- Work to improve children's health should start before mother becomes pregnant
- Later supper for blackbirds in the city: Artificial light gives birds longer to forage for food
- Pediatric allergology: Fresh milk keeps infections at bay
- Novel solutions developed to fight obesity gene
NASA Rover Opportunity views comet near Mars Posted: 20 Oct 2014 09:35 PM PDT |
Mars Orbiter image shows comet nucleus is small Posted: 20 Oct 2014 09:33 PM PDT |
Salmonella-infected mice that were given antibiotics became superspreaders Posted: 20 Oct 2014 06:29 PM PDT Some people infected with pathogens spread their germs to others while remaining symptom-free themselves. Now, investigators believe they may know why. In a new study, Salmonella-infected mice that were given antibiotics became sicker and began shedding far more bacteria in their feces than they had before. |
Built-in billboards: Male bluefin killifish signal different things with different fins Posted: 20 Oct 2014 06:29 PM PDT |
Mental rest and reflection boost learning, study suggests Posted: 20 Oct 2014 06:27 PM PDT |
Untangling the biological effects of blue light Posted: 20 Oct 2014 06:27 PM PDT |
Measuring on ice: Researchers create 'smart' ice skating blade Posted: 20 Oct 2014 06:25 PM PDT |
Posted: 20 Oct 2014 06:24 PM PDT Three Ebola-infected travelers are predicted to depart on an international flight every month from any of the three countries in West Africa currently experiencing widespread Ebola virus outbreaks (Guinea, Liberia, or Sierra Leone), if no exit screening were to take place, according to new modeling research. |
See-through sensors open new window into the brain Posted: 20 Oct 2014 06:23 PM PDT Developing invisible implantable medical sensor arrays, a team of engineers has overcome a major technological hurdle in researchers' efforts to understand the brain. The team has now described its technology, which has applications in fields ranging from neuroscience to cardiac care and even contact lenses. |
Scientists restore hearing in noise-deafened mice, pointing way to new therapies Posted: 20 Oct 2014 06:23 PM PDT Scientists have restored the hearing of mice partly deafened by noise, using advanced tools to boost the production of a key protein in their ears. By demonstrating the importance of the protein, called NT3, in maintaining communication between the ears and brain, these new findings pave the way for research in humans that could improve treatment of hearing loss caused by noise exposure and normal aging. |
Positive subliminal messages on aging improve physical functioning in elderly Posted: 20 Oct 2014 11:52 AM PDT |
New study charts the fate of chemicals affecting health, environment Posted: 20 Oct 2014 11:52 AM PDT The trajectory of chemicals appearing as emergent threats to human or environmental health has been recently studied through a meta-analysis of 143,000 peer-reviewed research papers. The work tracks the progress of these chemicals of emerging concern, revealing patters of emergence from obscurity to peak concern and eventual decline, over a span of 30 years. |
Siblings of children with autism can show signs at 18 months Posted: 20 Oct 2014 11:52 AM PDT |
Posted: 20 Oct 2014 11:51 AM PDT |
See-through, one-atom-thick, carbon electrodes powerful tool to study brain disorders Posted: 20 Oct 2014 11:15 AM PDT A graphene, one-atom-thick microelectrode now solves a major problem for investigators looking at brain circuitry. Pinning down the details of how individual neural circuits operate in epilepsy and other brain disorders requires real-time observation of their locations, firing patterns, and other factors. |
Fish tale: New study evaluates antibiotic content in farm-raised fish Posted: 20 Oct 2014 10:49 AM PDT Antibiotic use in the rapidly expanding world of global aquaculture has been examined in a new study. Results of the research evaluated the presence of antibiotics in shrimp, salmon, catfish, trout, tilapia and swai, originating from 11 countries. Data showed traces of 5 of the 47 antibiotics evaluated. |
Children who drink non-cow's milk are twice as likely to have low vitamin D Posted: 20 Oct 2014 10:49 AM PDT |
Sport in old age can stimulate brain fitness, but effect decreases with advancing age Posted: 20 Oct 2014 10:49 AM PDT Physical exercise in old age can improve brain perfusion as well as certain memory skills, say neuroscientists who studied men and women aged between 60 and 77. In younger individuals regular training on a treadmill tended to improve cerebral blood flow and visual memory. However, trial participants who were older than 70 years of age tended to show no benefit of exercise. |
Heavy metal frost? A new look at a Venusian mystery Posted: 20 Oct 2014 10:39 AM PDT Venus is hiding something beneath its brilliant shroud of clouds: a first order mystery about the planet that researchers may be a little closer to solving because of a new re-analysis of twenty-year-old spacecraft data. Venus's surface can't be seen from orbit in visible light because of the planet's hot, dense, cloudy atmosphere. Instead, radar has been used by spacecraft to penetrate the clouds and map out the surface – both by reflecting radar off the surface to measure elevation and by looking at the radio emissions of the hot surface. The last spacecraft to map Venus in this way was Magellan, two decades ago. |
Secrets of dinosaur ecology found in fragile amber Posted: 20 Oct 2014 10:39 AM PDT Ryan McKellar's research sounds like it was plucked from Jurassic Park: he studies pieces of amber found buried with dinosaur skeletons. But rather than re-creating dinosaurs, he uses the tiny pieces of fossilized tree resin to study the world in which the now-extinct behemoths lived. New techniques for investigating very tiny pieces of fragile amber buried in dinosaur bonebeds could close the gaps in knowledge about the ecology of the dinosaurs. |
Massive debris pile reveals risk of huge tsunamis in Hawaii Posted: 20 Oct 2014 09:15 AM PDT A mass of marine debris discovered in a giant sinkhole in the Hawaiian islands provides evidence that at least one mammoth tsunami, larger than any in Hawaii's recorded history, has struck the islands, and that a similar disaster could happen again, new research finds. Scientists are reporting that a wall of water up to nine meters (30 feet) high surged onto Hawaiian shores about 500 years ago. A 9.0-magnitude earthquake off the coast of the Aleutian Islands triggered the mighty wave, which left behind up to nine shipping containers worth of ocean sediment in a sinkhole on the island of Kauai. |
Mediterranean, semi-arid ecosystems prove resistant to climate change Posted: 20 Oct 2014 09:15 AM PDT Climate change predictions for the Middle East, like other arid regions of the world, are alarming. But in testing these dire predictions, ecologists found that, contrary to expectations, no measurable changes in annual vegetation could be seen. None of the crucial vegetation characteristics -- neither species richness and composition, nor density and biomass -- had changed appreciably in the course of the rainfall manipulations. |
User-friendly electronic 'Eyecane' enhances navigational abilities for blind Posted: 20 Oct 2014 09:14 AM PDT White Canes provide low-tech assistance to the visually impaired, but some blind people object to their use because they are cumbersome, fail to detect elevated obstacles, or require long training periods to master. Electronic travel aids (ETAs) have the potential to improve navigation for the blind, but early versions had disadvantages that limited widespread adoption. A new ETA, the "EyeCane," expands the world of its users, allowing them to better estimate distance, navigate their environment, and avoid obstacles, according to a new study |
Fish just want to have fun, according to a new study that finds even fish 'play' Posted: 20 Oct 2014 09:14 AM PDT |
Why your brain makes you reach for junk food Posted: 20 Oct 2014 08:12 AM PDT |
Brain activity provides evidence for internal 'calorie counter' Posted: 20 Oct 2014 07:55 AM PDT |
John Lennon commemorated by naming a new tarantula species from South America after him Posted: 20 Oct 2014 07:55 AM PDT |
Facetless crystals that mimic starfish shells could advance 3-D-printing pills Posted: 20 Oct 2014 07:55 AM PDT |
Wild molecular interactions in a new hydrogen mixture Posted: 20 Oct 2014 07:55 AM PDT Hydrogen responds to pressure and temperature extremes differently. Under ambient conditions hydrogen is a gaseous two-atom molecule. As confinement pressure increases, the molecules adopt different states of matter -- like when water ice melts to liquid. Scientists have now combined hydrogen with its heavier sibling deuterium and created a novel, disordered, 'Phase IV'-material. The molecules interact differently than have been observed before, which could be valuable for controlling superconducting and thermoelectric properties of new materials. |
Fairness is in the brain, scientists say Posted: 20 Oct 2014 07:53 AM PDT |
Breathing sand: New measurement technique detects oxygen supply to bottom of North Sea Posted: 20 Oct 2014 07:53 AM PDT New analytical methods show for the first time, how the permeable, sandy sediment at the bottom of the North Sea is supplied with oxygen and which factors determine the exchange. Based on the detailed investigation and new measurement technology, the turnover of organic matter and nutrients at the sea floor as well as future changes within the dynamic ecosystem can be better assessed. |
Sexual preference for masculine men, feminine women is an urban habit Posted: 20 Oct 2014 07:53 AM PDT |
Protocells and information strings: Self-organizing autocatalytic network created in computer model Posted: 20 Oct 2014 07:50 AM PDT Protocells are the simplest, most primitive living systems, you can think of. However, creating an artificial protocell is far from simple. One of the challenges is to create the information strings that can be inherited by cell offspring, including protocells. Such information strings are like modern DNA or RNA strings, and they are needed to control cell metabolism and provide the cell with instructions about how to divide. Now using a a virtual computer experiment, researchers in Denmark have discovered information strings with peculiar properties. |
Physicists build reversible laser tractor beam Posted: 20 Oct 2014 07:50 AM PDT |
1980s American aircraft helps quantum technology take flight Posted: 20 Oct 2014 07:50 AM PDT |
Winning the war against Human parainfluenza virus Posted: 20 Oct 2014 07:50 AM PDT Researchers have moved a step closer to identifying a treatment for the dreaded Human parainfluenza virus. These highly-infectious viruses are the leading cause of upper and lower respiratory tract disease in young children, including Croup, responsible for thousands of hospitalizations in the developed world, and hundreds of thousands of deaths each year in developing countries. |
New antidepressant: Rapid agent restores pleasure-seeking ahead of other antidepressant action Posted: 20 Oct 2014 07:50 AM PDT A drug being studied as a fast-acting mood-lifter restored pleasure-seeking behavior independent of -- and ahead of -- its other antidepressant effects. Within 40 minutes after a single infusion of ketamine, treatment-resistant depressed bipolar disorder patients experienced a reversal of a key symptom -- loss of interest in pleasurable activities -- which lasted up to 14 days. Brain scans traced the agent's action to boosted activity in areas at the front and deep in the right hemisphere of the brain. |
Design of micro, nanoparticles to improve treatments for Alzheimer's, Parkinson's Posted: 20 Oct 2014 07:49 AM PDT Techniques are being developed to deliver correctly and effectively certain drugs to treat Alzheimer's and Parkinson's. Both disorders affect the neurones: their structure and function is lost, and this in turn leads to the deterioration in the patient's motor, cognitive, sensory and emotional functions. |
New class of drugs shows promise in treating chronic diarrhea Posted: 20 Oct 2014 07:49 AM PDT A pilot study testing a new type of drug in patients with chronic diarrhea has shown promising effects on reducing their symptoms. Bile acid diarrhea (BAD) is a common cause of chronic diarrhea that is estimated to affect one in 100 adults in western countries, but is often mistaken for irritable bowel syndrome (IBS) by doctors. Many patients are not diagnosed correctly and undergo repeated unnecessary tests. |
Cold sores increase risk of dementia, research suggests Posted: 20 Oct 2014 07:49 AM PDT Infection with herpes simplex virus increases the risk of Alzheimer's disease, researchers claim. "Our results clearly show that there is a link between infections of herpes simplex virus and the risk of developing Alzheimer's disease. This also means that we have new opportunities to develop treatment forms to stop the disease," says one of the researchers behind the study. |
Earthquakes in the ocean: Towards a better understanding of their precursors Posted: 20 Oct 2014 07:49 AM PDT New research offers the first theoretical model that, based on fluid-related processes, explains the seismic precursors of an underwater earthquake. Using quantitative measurements, this innovative model established a link between observed precursors and the mainshock of an earthquake. The results open a promising avenue of research for guiding future investigations on detecting earthquakes before they strike. |
Goldilocks principle wrong for particle assembly: Too hot and too cold is just right Posted: 20 Oct 2014 07:47 AM PDT Microscopic particles that bind under low temperatures will melt as temperatures rise to moderate levels, but re-connect under hotter conditions, a team of scientists has found. Their discovery points to new ways to create "smart materials," cutting-edge materials that adapt to their environment by taking new forms, and to sharpen the detail of 3D printing. |
Over-organizing repair cells set the stage for fibrosis Posted: 20 Oct 2014 07:47 AM PDT |
Advances in creating treatment for common childhood blood cancer Posted: 20 Oct 2014 07:47 AM PDT A new drug in development may offer first alternative to standard chemotherapy for T-Cell Acute Lymphoblastic Leukemia, scientists report. An estimated quarter of the 500 U.S. adolescents and young adults diagnosed each year with this aggressive disease fail to respond to standard chemotherapy drugs that target cancer cells. |
Origins of sex discovered: Side-by-side copulation in distant ancestors Posted: 20 Oct 2014 07:38 AM PDT A palaeontologist has revealed how the intimate act of sexual intercourse first evolved in our deep distant ancestors. In one of the biggest discoveries in the evolutionary history of sexual reproduction, scientists have found that internal fertilization and copulation appeared in ancient armored fishes, called placoderms, about 385 million years ago in what is now Scotland. |
NASA's Mars Odyssey Orbiter watches comet fly near Posted: 20 Oct 2014 06:28 AM PDT |
NASA's MAVEN studies passing comet and its effects Posted: 20 Oct 2014 06:26 AM PDT |
NASA's Mars Reconnaissance Orbiter studies comet flyby Posted: 20 Oct 2014 06:21 AM PDT |
Head injury causes immune system to attack brain, new study finds Posted: 20 Oct 2014 06:04 AM PDT Scientists have uncovered a surprising way to reduce the brain damage caused by head injuries -- stopping the body's immune system from killing brain cells. A new study showed that in experiments on mice, an immune-based treatment reduced the size of brain lesions. The authors suggest that if the findings apply to humans, this could help prevent brain damage from accidents, and protect players of contact sports like football, rugby and boxing. |
Viagra protects the heart beyond the bedroom, study finds Posted: 20 Oct 2014 06:04 AM PDT |
Blind cave fish may provide insight on eye disease, other human health issues Posted: 20 Oct 2014 06:04 AM PDT Blind cave fish may not be the first thing that comes to mind when it comes to understanding human sight, but recent research indicates they may have quite a bit to teach us about the causes of many human ailments, including those that result in loss of sight. A team of researchers is looking to the tiny eyeless fish for clues about the underpinnings of degenerative eye disease and more. |
New tracers can identify frack fluids in the environment Posted: 20 Oct 2014 06:03 AM PDT Scientists have developed geochemical tracers to identify hydraulic fracturing flowback fluids that have been spilled or released into the environment. The tracers have been field-tested at two sites and can distinguish fracking fluids from wastewater versus conventional wells or other sources. They give scientists new forensic tools to detect if fracking fluids are escaping into water supplies and what risks, if any, they might pose. |
Heart rate may predict survival, brain function in comatose cardiac arrest survivors Posted: 20 Oct 2014 06:03 AM PDT Patients with sinus bradycardia during therapeutic hypothermia had a 50 to 60 percent lower mortality rate at 180 days than those with no sinus bradycardia, a study has found. The same research also found that sinus bradycardia was directly associated with a better neurological status 180 days after the arrest. |
Aspirin shown to benefit schizophrenia treatment Posted: 20 Oct 2014 06:01 AM PDT Some anti-inflammatory medicines, such as aspirin, estrogen, and Fluimucil, can improve the efficacy of existing schizophrenia treatments, new research suggests. Research has shown that the immune system is linked to certain psychiatric disorders, such as schizophrenia and bipolar disorder. Research has shown that "antioxidants and anti-inflammatory drugs could not only reduce symptoms associated with the disorders but also prevent the appearance of neurobiological abnormalities and transition to psychosis if given early during brain development," experts say. |
Fish intake associated with boost to antidepressant response Posted: 20 Oct 2014 06:01 AM PDT Up to half of patients who suffer from major depression do not respond to treatment with Selective Serotonin Reuptake Inhibitors. Now a group of researchers has carried out a study that shows that increasing fatty fish intake appears to increase the response rate in patients who do not respond to antidepressants. |
Panic attacks associated with fear of bright daylight Posted: 20 Oct 2014 06:01 AM PDT Fear of bright daylight is associated with panic disorder, according to new research. Panic disorder is where a person has recurring and regular panic attacks. It appears to be about twice as common in women as it is in men. Previous studies have shown that there is a strong seasonal component in panic disorder, but this is the first study to look specifically at panic disorder patients' reactions to light. |
Work to improve children's health should start before mother becomes pregnant Posted: 20 Oct 2014 06:01 AM PDT The key to making future generations healthier could lie before the mother becomes pregnant, researchers believe. In a new article, they say that a greater understanding is needed of the role of maternal nutrition in preconception and its impact on the child, adding that while the evidence published to date provides useful ways to improve the health of children, it also raises many questions. |
Later supper for blackbirds in the city: Artificial light gives birds longer to forage for food Posted: 20 Oct 2014 06:01 AM PDT Artificial light increases foraging time in blackbirds. Birds in city centers are active not just considerably earlier, but also for longer than their relatives in darker parts of the city. The study showed that artificial light has a considerable influence on the activity times of blackbirds in the city and therefore on their natural cycles. |
Pediatric allergology: Fresh milk keeps infections at bay Posted: 20 Oct 2014 06:00 AM PDT |
Novel solutions developed to fight obesity gene Posted: 20 Oct 2014 06:00 AM PDT Individuals who are genetically predisposed to obesity may soon have a therapeutic solution to combat their condition. A research team has identified several potent inhibitors that selectively target FTO, the common fat mass and obesity-associated gene. These FTO-specific inhibitors pave the way for the development of novel anti-obesity drugs and treatments. |
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