ScienceDaily: Top News |
- Parkinsonian worms may hold the key to identifying drugs for Parkinson's disease
- Woodsmoke from cooking fires linked to pneumonia, cognitive impacts
- Effects of 'mini stroke' can shorten life expectancy
- Plant with 'eggbeater' texture inspires waterproof coating
- Deepwater Horizon oil spill: New approach to assessing impacts of ecological damage
- More than 50 percent decline in elephants in eastern Congo due to human conflict
- Can fetus sense mother's psychological state? Study suggests yes
- Why do neurons die in Parkinson's disease? Study of hereditary Parkinson’s finds that mitochondria can’t be cleared out when damaged
- Giant planet ejected from the solar system?
- Attention and awareness uncoupled: Brain imaging experiments uncouple two apparently intimately connected mental processes
- Sea change can forecast South American wildfires
- Scientists defuse the 'Vietnam time bomb': How bacterial pathogen causes deadly tropical disease melioidosis
- Astronomers find clouds of primordial gas from the early universe, just moments after Big Bang
- Acupuncture can prevent radiation-induced chronic dry mouth, study finds
- Trees on tundra's border are growing faster in a hotter climate
- Elderly lose ability to distinguish between odors, researcher finds; Smells blend together, pose hazards
- 'Fishy lawnmowers' help save Pacific corals
- More fiber, but not necessarily less fat, good for teen diets
- New target identified to stop the spread of breast cancer
- A light wave of innovation to advance solar energy: Researchers adapt classic antennas to harness more power from the sun
- Whiskers marked milestone in evolution of mammals from reptiles
- Using light, researchers convert 2-D patterns into 3-D objects
- Flexible rack systems sort molecules
- Scientists discover how to design drugs that could target particular nerve cells
- Psychologists increase understanding of how the brain perceives shades of gray
- Knocking out key protein in mice boosts insulin sensitivity
- Combination 'epigenetic' therapy may restore anti-cancer gene activity in late-stage lung cancer patients
- Hubble uncovers tiny galaxies bursting with starbirth in early Universe
- Exploring the last white spot on Earth
- Kawasaki disease linked to wind currents: First evidence that long-range wind transport of an infectious agent might result in human disease
- Nano car has molecular 4-wheel drive: Smallest electric car in the world
- Biological clock controls activation of skin stem cells
| Parkinsonian worms may hold the key to identifying drugs for Parkinson's disease Posted: 10 Nov 2011 04:19 PM PST Researchers have devised a simple test, using dopamine-deficient worms, for identifying drugs that may help people with Parkinson's disease. |
| Woodsmoke from cooking fires linked to pneumonia, cognitive impacts Posted: 10 Nov 2011 04:19 PM PST Researchers have found a dramatic one-third reduction in severe pneumonia diagnoses among children in homes with smoke-reducing chimneys on their cookstoves. Reducing wood smoke could have a major impact on the burden of pneumonia, the leading cause of child mortality in the world, the researchers said. A separate pilot study also found a link between prenatal maternal exposure to woodsmoke and poorer performance in markers for IQ at ages six and seven. |
| Effects of 'mini stroke' can shorten life expectancy Posted: 10 Nov 2011 04:19 PM PST Having a transient ischemic attack (TIA), or "mini stroke," could lower your life expectancy, according to new research. Survival rates after TIA were 20 percent lower than expected nine years later, compared to the general population. The long-term effects of TIA were most serious for patients older than 65 and for patients with previous history of stroke and heart problems. |
| Plant with 'eggbeater' texture inspires waterproof coating Posted: 10 Nov 2011 12:17 PM PST A floating weed that clogs waterways around the world has at least one redeeming feature: It's inspired a high-tech waterproof coating intended for boats and submarines. The Brazilian fern Salvinia molesta has proliferated around the Americas and Australia in part because its surface is dotted with oddly shaped hairs that trap air, reduce friction, and help the plant stay afloat. |
| Deepwater Horizon oil spill: New approach to assessing impacts of ecological damage Posted: 10 Nov 2011 11:23 AM PST The magnitude and depth of the Deepwater Horizon oil spill will require an unprecedented effort to determine the extent and severity of ecological damage and to develop restoration plans for affected areas in the Gulf of Mexico, says a new report. A broad approach that focuses on repairing ecosystem processes -- such as fisheries production -- in addition to replacing natural resources damaged by the spill could offer more options for restoring the Gulf region, says the congressionally mandated report. |
| More than 50 percent decline in elephants in eastern Congo due to human conflict Posted: 10 Nov 2011 11:23 AM PST Humans play a far greater role in the fate of African elephants than habitat, and human conflict in particular has a devastating impact on these largest terrestrial animals, according to a new study. |
| Can fetus sense mother's psychological state? Study suggests yes Posted: 10 Nov 2011 11:23 AM PST As a fetus grows, it's constantly getting messages from its mother. It's not just hearing her heartbeat and whatever music she might play to her belly; it also gets chemical signals through the placenta. A new study finds that this includes signals about the mother's mental state. |
| Posted: 10 Nov 2011 11:21 AM PST Current thinking about Parkinson's disease is that it's a disorder of mitochondria, the energy-producing organelles inside cells, causing neurons in the brain's substantia nigra to die or become impaired. A study now shows that genetic mutations causing a hereditary form of Parkinson's disease cause mitochondria to run amok inside the cell, leaving the cell without a brake to stop them. |
| Giant planet ejected from the solar system? Posted: 10 Nov 2011 11:21 AM PST Just as an expert chess player sacrifices a piece to protect the queen, the solar system may have given up a giant planet and spared the Earth, according to a new article. |
| Posted: 10 Nov 2011 11:20 AM PST In everyday life, attention and awareness appear tightly interwoven. Attending to the scissors on the right side of your desk, you become aware of their attributes, for example the red handles. Vice versa, the red handles could attract your attention to the scissors. However, a number of behavioural observations have recently led scientists to postulate that attention and awareness are fundamentally different processes and not necessarily connected. A new study provides the first experimental evidence that the primary visual cortex, the entrance stage to cortical visual processing, is modulated only by attention and not by awareness. |
| Sea change can forecast South American wildfires Posted: 10 Nov 2011 11:20 AM PST Tiny temperature changes on the Atlantic and Pacific oceans provide an excellent way to forecast wildfires in South American rainforests, new research shows. |
| Posted: 10 Nov 2011 11:20 AM PST A key mechanism by which a bacterial pathogen causes the deadly tropical disease melioidosis has been discovered by an international team of scientists. |
| Astronomers find clouds of primordial gas from the early universe, just moments after Big Bang Posted: 10 Nov 2011 11:20 AM PST For the first time, astronomers have found pristine clouds of the primordial gas that formed in the first few minutes after the Big Bang. The composition of the gas matches theoretical predictions, providing direct evidence in support of the modern cosmological explanation for the origins of elements in the universe. |
| Acupuncture can prevent radiation-induced chronic dry mouth, study finds Posted: 10 Nov 2011 10:01 AM PST When given alongside radiation therapy for head and neck cancer, acupuncture has shown for the first time to reduce the debilitating side effect of xerostomia, according to new research. |
| Trees on tundra's border are growing faster in a hotter climate Posted: 10 Nov 2011 10:01 AM PST Evergreen trees at the edge of Alaska's tundra are growing faster, suggesting that at least some forests may be adapting to a rapidly warming climate, says a new study. While forests elsewhere are thinning from wildfires, insect damage and droughts partially attributed to global warming, some white spruce trees in the far north of Alaska have grown more vigorously in the last hundred years, especially since 1950, the study has found. |
| Posted: 10 Nov 2011 10:01 AM PST Scientists studying the effect of aging on smell, have found that those 60 and over have more difficulty distinguishing between odors, putting them at risk from dangerous chemicals and poor nutrition. |
| 'Fishy lawnmowers' help save Pacific corals Posted: 10 Nov 2011 10:01 AM PST Can fish save coral reefs from dying? Researchers have found one case where fish have helped coral reefs to recover from cyclones and predators. |
| More fiber, but not necessarily less fat, good for teen diets Posted: 10 Nov 2011 10:00 AM PST A diet high in fiber – but not necessarily one low in saturated fat or cholesterol – is tied to a lower risk of heart disease and type-2 diabetes in teenagers, according to new findings. |
| New target identified to stop the spread of breast cancer Posted: 10 Nov 2011 09:59 AM PST A new potential target to slow breast cancer tumor progression and metastasis has been identified. |
| Posted: 10 Nov 2011 09:59 AM PST Engineers are developing a solar panel composed of nano-antennas instead of silicon semiconductors. They say that through the use of these antennas, a much higher conversion rate from light into usable energy can be achieved -- and could lead to a more cost-effective way to harvest and utilize "green" energy. |
| Whiskers marked milestone in evolution of mammals from reptiles Posted: 10 Nov 2011 09:59 AM PST New research comparing rats and mice with their distance relatives the marsupial, suggests that moveable whiskers were an important milestone in the evolution of mammals from reptiles. |
| Using light, researchers convert 2-D patterns into 3-D objects Posted: 10 Nov 2011 09:58 AM PST Researchers have developed a simple way to convert two-dimensional patterns into three-dimensional objects using only light. |
| Flexible rack systems sort molecules Posted: 10 Nov 2011 09:58 AM PST Researchers have developed a flexible and efficient new process for the separation of enantiomers. Enantiomer separation is indispensable for the production of many pharmaceuticals. In their process, the scientists use porous molecular frameworks that are assembled in layers on solid substrates using a specifically developed method. |
| Scientists discover how to design drugs that could target particular nerve cells Posted: 10 Nov 2011 09:58 AM PST The future of drug design lies in developing therapies that can target specific cellular processes without causing adverse reactions in other areas of the nervous system. Scientists have now discovered how to design drugs to target specific areas of the brain. |
| Psychologists increase understanding of how the brain perceives shades of gray Posted: 10 Nov 2011 09:57 AM PST Peoples' eyes, nerves and brains translate light into electrochemical signals and then into an experience of the world around them. A close look shows that even seemingly simple tasks, like keeping a stable perception of an object's color in different lighting conditions or distinguishing black and white objects, is, in fact, very challenging. By way of a novel experiment, psychologists have now provided new insight into how the brain tackles this problem. |
| Knocking out key protein in mice boosts insulin sensitivity Posted: 10 Nov 2011 09:57 AM PST By knocking out a key regulatory protein, scientists have dramatically boosted insulin sensitivity in lab mice, an achievement that opens a new door for drug development and the treatment of diabetes. |
| Posted: 10 Nov 2011 06:49 AM PST A new type of therapy aimed at reversing the gene-silencing that promotes cancer-cell growth has shown promising results in a small clinical trial. Forty-five late-stage lung cancer patients who received a two-drug combination designed to restore anti-cancer gene activity survived about two months longer than the expected four months, and two patients showed complete or near-complete responses despite having progressive disease after multiple standard therapies. |
| Hubble uncovers tiny galaxies bursting with starbirth in early Universe Posted: 10 Nov 2011 06:48 AM PST Using its infrared vision to peer nine billion years back in time, astronomers have uncovered an extraordinary population of tiny, young galaxies that are brimming with star formation. |
| Exploring the last white spot on Earth Posted: 10 Nov 2011 06:48 AM PST Scientists will soon gain new insight into matter at conditions so extreme it can only be produced for microseconds using intense laser pulses. Such matter is present in the interior of the Earth and other planets, and we know surprisingly little about it. A new X-ray beamline will explore the last white spot on our globe: The Earth's core. |
| Posted: 10 Nov 2011 06:48 AM PST Kawasaki Disease (KD) is a severe childhood disease that many parents, even some doctors, mistake for an inconsequential viral infection. In fact, if not diagnosed or treated in time, it can lead to irreversible heart damage. After 50 years of research, including genetic studies, scientists have been unable to pinpoint the cause of the disease. Now, surprising findings suggest that KD cases are linked to large-scale wind currents that track from Asia to Japan and also traverse the North Pacific. |
| Nano car has molecular 4-wheel drive: Smallest electric car in the world Posted: 10 Nov 2011 06:24 AM PST Reduced to the max: the emission-free, noiseless 4-wheel drive car, jointly developed by Swiss researchers and their Dutch colleagues, represents lightweight construction at its most extreme. The nano car consists of just a single molecule and travels on four electrically-driven wheels in an almost straight line over a copper surface. |
| Biological clock controls activation of skin stem cells Posted: 10 Nov 2011 06:23 AM PST A new study reveals the role of the daily biological clock (circadian rhythms) in the regenerative capacity of skin stem cells. Disruption of this rhythm results in premature tissue aging and a greater predisposition to the development of skin tumors. The proper reestablishment of the biological clock increases the long-term regenerative capacity of the tissue and decreases the probability of developing tumors. |
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