ScienceDaily: Top News |
- Do wearable lifestyle activity monitors really work?
- Boosting global corn yields depends on improving nutrient balance
- Healthy humans make nice homes for viruses
- Nanoribbon film keeps glass ice-free
- Don't underestimate your mind's eye: Objects don't need to be seen to impact decision-making
- Computerized emotion detector
- The genetics of coping with HIV
- Impact that doomed the dinosaurs helped the forests bloom
- Study on global carbon cycle may require reappraisal of climate events in Earth's history
- First water-based nuclear battery can be used to generate electrical energy
- Slowed processing speed linked with executive deficits in multiple sclerosis
- Scientists twist radio beams to send data: Transmissions reach speeds of 32 gigibits per second
- Tornadoes occurring earlier in 'Tornado Alley'
- For electronics beyond silicon, a new contender emerges
- Camera sheds light on mate choice of swordtail fish
- Ebola outbreak 'out of all proportion' and severity cannot be predicated, expert says
- Patients who never smoked or who quit smoking have lower risk of developing secondary cancers
- New gene research helps pinpoint prostate cancer risk
- Forgotten ghost ships off Golden Gate revealed
- How learning to talk is in the genes
- Human faces are so variable because we evolved to look unique
- Scientists create therapy-grade stem cells using new cocktail to reprogram adult cells
- Gene variant that dramatically reduces 'bad' lipids: Role of rare APOC3 variant in reducing triglyceride levels identified
- The benefits and dangers of supplements
- Endocrine-related protein found to be master regulator in other important diseases
- Bacterial communication: And so they beat on, flagella against the cantilever
- The future face of molecular electronics
- Making quantum dots glow brighter
- A heart-felt need for dairy food: Small serving beneficial, large not necessary
- Each tree species has unique bacterial identity, microbiome research shows
- Neuroimaging technique identifies concussion-related brain disease in living brain
- Unraveling cell division: Process of mitosis more clear, thanks to new research
- Judging a fish by its color: For female bluefin killifish, love is a yellow mate
- Cats lend a helping paw in search for anti-HIV drugs
- New drug formulations to boost fight against respiratory illnesses, antibiotic-resistant superbugs
- Cancer-fighting cocktail demonstrates promising results as treatment for advanced cervical cancer
- More cheese, please! News study shows dairy is good for your metabolic health
- Burnout caused by more than just job stress
- New therapeutic target may prevent blindness in premature babies at risk of retinopathy
- Myth about Parkinson's disease debunked
- What's for dinner? Rapidly identifying undescribed species in a commercial fungi packet
- Imaging identifies asymptomatic people at risk for stroke
- Smoking, schizophrenia linked by alterations in brain nicotine signals
- The Gulf Stream kept going during the last Ice Age
- 219 million stars: Astronomers release most detailed catalog ever made of the visible Milky Way
- Dental, nutrition experts call for radical rethink on free sugars intake
- Consumption of high-fat dairy products associated with lower risk of developing diabetes
- Wastewater injection is culprit for most earthquakes in southern Colorado and northern New Mexico, study finds
- Mega-quake possible for subduction zones along 'Ring of Fire,' new study suggests
- Brain scans used to forecast early reading difficulties
- 3-D printing of rocks and fossils
- Tropical tree microbiome discovered in Panama
- EEG study findings reveal how fear is processed in the brain
- Researcher develops, proves effectiveness of new drug for spinal muscular atrophy
- New halogenation enzyme found: Discovery to impact pharmaceutical and agricultural industries
- New producer of crucial vitamin B12 discovered
- 'Squid skin' metamaterials project yields vivid color display
- X-rays unlock a protein's SWEET side
- Certain form of baldness at age 45 linked to higher risk for aggressive prostate cancer
- Cells simply avoid chromosome confusion
Do wearable lifestyle activity monitors really work? Posted: 16 Sep 2014 03:22 PM PDT Wearable electronic activity monitors hold great promise in helping people to reach their wellness goals. These increasingly sophisticated devices help the wearers improve their wellness by constantly monitoring their activities and bodily responses through companion computer programs and mobile apps. Given the large market for these devices, researchers analyzed 13 of these devices to compare how the devices and their apps work to motivate the wearer. |
Boosting global corn yields depends on improving nutrient balance Posted: 16 Sep 2014 03:22 PM PDT Ensuring that corn absorbs the right balance of nitrogen, phosphorus and potassium is crucial to increasing global yields, a study finds. A review of data from more than 150 studies from the U.S. and other regions showed that high yields were linked to production systems in which corn plants took up key nutrients at specific ratios -- nitrogen and phosphorus at a ratio of 5-to-1 and nitrogen and potassium at a ratio of 1-to-1. These nutrient uptake ratios were associated with high yields regardless of the region where the corn was grown. |
Healthy humans make nice homes for viruses Posted: 16 Sep 2014 01:24 PM PDT The same viruses that make us sick can take up residence in and on the human body without provoking a sneeze, cough or other troublesome symptom, according to new research. On average, healthy individuals carry about five types of viruses on their bodies, the researchers report. The study is the first comprehensive analysis to describe the diversity of viruses in healthy people. |
Nanoribbon film keeps glass ice-free Posted: 16 Sep 2014 12:52 PM PDT |
Don't underestimate your mind's eye: Objects don't need to be seen to impact decision-making Posted: 16 Sep 2014 11:28 AM PDT |
Posted: 16 Sep 2014 11:15 AM PDT Face recognition software measures various parameters in a mug shot, such as the distance between the person's eyes, the height from lip to top of their nose and various other metrics and then compares it with photos of people in the database that have been tagged with a given name. Now, new research looks to take that one step further in recognizing the emotion portrayed by a face. |
The genetics of coping with HIV Posted: 16 Sep 2014 11:15 AM PDT We respond to infections in two fundamental ways. One is 'resistance,' where the body attacks the invading pathogen and reduces its numbers. Another, which is much less well understood, is 'tolerance,' where the body tries to minimize the damage done by the pathogen. A study using data from a large Swiss cohort of HIV-infected individuals gives us a glimpse into why some people cope with HIV better than others. |
Impact that doomed the dinosaurs helped the forests bloom Posted: 16 Sep 2014 11:15 AM PDT Some 66 million years ago, a 10-km diameter chunk of rock hit the Yucatan peninsula with the force of 100 teratons of TNT. It left a crater more than 150 km across, and the resulting megatsunami, wildfires, global earthquakes and volcanism are widely accepted to have wiped out the dinosaurs and made way for the rise of the mammals. But what happened to the plants on which the dinosaurs fed? |
Study on global carbon cycle may require reappraisal of climate events in Earth's history Posted: 16 Sep 2014 10:25 AM PDT |
First water-based nuclear battery can be used to generate electrical energy Posted: 16 Sep 2014 10:25 AM PDT |
Slowed processing speed linked with executive deficits in multiple sclerosis Posted: 16 Sep 2014 10:25 AM PDT |
Scientists twist radio beams to send data: Transmissions reach speeds of 32 gigibits per second Posted: 16 Sep 2014 10:25 AM PDT Researchers twist four radio beams together to achieve high data transmission speeds. The researchers reached data transmission rates of 32 gigabits per second across 2.5 meters of free space in a basement lab. For reference, 32 gigabits per second is fast enough to transmit more than 10 hour-and-a-half-long HD movies in one second and is 30 times faster than LTE wireless. |
Tornadoes occurring earlier in 'Tornado Alley' Posted: 16 Sep 2014 10:25 AM PDT |
For electronics beyond silicon, a new contender emerges Posted: 16 Sep 2014 09:37 AM PDT Using a quantum material called a correlated oxide, researchers have achieved a reversible change in electrical resistance of eight orders of magnitude, a result the researchers are calling 'colossal.' In short, they have engineered this material to perform comparably with the best silicon switches. |
Camera sheds light on mate choice of swordtail fish Posted: 16 Sep 2014 09:36 AM PDT |
Ebola outbreak 'out of all proportion' and severity cannot be predicated, expert says Posted: 16 Sep 2014 09:29 AM PDT |
Patients who never smoked or who quit smoking have lower risk of developing secondary cancers Posted: 16 Sep 2014 08:29 AM PDT Non-small cell lung cancer survivors who never smoked or who are former smokers at the time of diagnosis have a lower risk of developing secondary primary lung cancers compared to those who are current smokers, suggesting that increased tobacco exposure is associated with a higher risk of SPLC, according to new research. |
New gene research helps pinpoint prostate cancer risk Posted: 16 Sep 2014 08:22 AM PDT A consortia of research hubs around the world encompassing 150 researchers has analysed more than 10 million genetic markers in 80,000 men with prostate cancer. "We now have 100 genetic regions and no other cancer has had this many loci identified to be associated with it. What we are looking for is the combination effect of how these loci work together and how much they can explain the heritability of prostate cancer," one researcher explained. |
Forgotten ghost ships off Golden Gate revealed Posted: 16 Sep 2014 08:22 AM PDT Researchers confirmed the discovery just outside San Francisco's Golden Gate strait of the 1910 shipwreck SS Selja and an unidentified early steam tugboat wreck tagged the 'mystery wreck.' The researchers also located the 1863 wreck of the clipper ship Noonday, currently obscured by mud and silt on the ocean floor. |
How learning to talk is in the genes Posted: 16 Sep 2014 08:22 AM PDT |
Human faces are so variable because we evolved to look unique Posted: 16 Sep 2014 08:22 AM PDT Why are human faces so variable compared to other animals, from lizards and penguins to dogs and monkeys? Scientists analyzed human faces and the genes that code for facial features and found a high variability that could only be explained by selection for variable faces, probably because of the importance of social interactions in human relationships and the need for humans to be recognizable. |
Scientists create therapy-grade stem cells using new cocktail to reprogram adult cells Posted: 16 Sep 2014 08:19 AM PDT Researchers have developed a new cocktail that's highly effective at coaxing adult cells to become quality pluripotent stem cells (iPSCs). Using a new combination of reprogramming factors, they produced a higher quality result than the traditional formula. The new mix delivers fewer colonies of iPSCs, but 80% of them pass the toughest pluripotency test. |
Posted: 16 Sep 2014 08:18 AM PDT A rare genetic variant that dramatically reduces levels of certain types of lipids in the blood has been identified in through a study that used data collected from around 4,000 healthy people in the UK. The study is the first to emerge from the UK10K Project's cohort of samples from the general public and demonstrates the power of whole genome sequencing at scale. |
The benefits and dangers of supplements Posted: 16 Sep 2014 08:17 AM PDT |
Endocrine-related protein found to be master regulator in other important diseases Posted: 16 Sep 2014 08:17 AM PDT |
Bacterial communication: And so they beat on, flagella against the cantilever Posted: 16 Sep 2014 08:17 AM PDT Researchers have developed a new model to study the motion patterns of bacteria in real time and to determine how these motions relate to communication within a bacterial colony. They chemically attached colonies of E. coli bacteria to a microcantilever, coupling its motion to that of the bacteria. As the cantilever itself isn't doesn't generate any vibrations, or 'noise,' this allowed the researchers to monitor the colony's reactions to various stimuli in real time. |
The future face of molecular electronics Posted: 16 Sep 2014 08:17 AM PDT The emerging field of molecular electronics could take our definition of portable to the next level, enabling the construction of tiny circuits from molecular components. In these highly efficient devices, individual molecules would take on the roles currently played by comparatively bulky wires, resistors and transistors. A team of researchers has identified a potential candidate for use in small-scale electronics: a molecule called picene. |
Making quantum dots glow brighter Posted: 16 Sep 2014 08:17 AM PDT Researchers have found a new way to control the properties of quantum dots, those tiny chunks of semiconductor material that glow different colors depending on their size. Quantum dots, which are so small they start to exhibit atom-like quantum properties, have a wide range of potential applications, from sensors, light-emitting diodes, and solar cells, to fluorescent tags for biomedical imaging and qubits in quantum computing. |
A heart-felt need for dairy food: Small serving beneficial, large not necessary Posted: 16 Sep 2014 07:22 AM PDT |
Each tree species has unique bacterial identity, microbiome research shows Posted: 16 Sep 2014 07:22 AM PDT |
Neuroimaging technique identifies concussion-related brain disease in living brain Posted: 16 Sep 2014 07:22 AM PDT An experimental positron emission tomography (PET) tracer is effective in diagnosing concussion-related brain disease while a person is still alive. A new study suggests that an experimental radiolabeled compound, which is designed to latch onto a protein called tau that accumulates in the brain with repetitive blows to the head, can be registered on a PET scanner to effectively diagnose chronic traumatic encephalopathy (CTE). |
Unraveling cell division: Process of mitosis more clear, thanks to new research Posted: 16 Sep 2014 07:19 AM PDT |
Judging a fish by its color: For female bluefin killifish, love is a yellow mate Posted: 16 Sep 2014 07:19 AM PDT Researchers used male replicas of bluefin killifish and controlled their movement with robotic arms to improve repeatability in experiments designed to determine how fertile female fish would respond to male courtship. The surprising result: The females preferred males with yellow fins, contrary to existing research that indicated a preference to blue and red. |
Cats lend a helping paw in search for anti-HIV drugs Posted: 16 Sep 2014 07:18 AM PDT A protein found in both the feline immunodeficiency virus (FIV) -- which causes AIDS in cats -- and the human immunodeficiency virus (HIV) might inspire new anti-HIV drugs, researchers report. They offer up a detailed, 3-D molecular map of FIV integrase that could help scientists also understand how this protein works in HIV. |
New drug formulations to boost fight against respiratory illnesses, antibiotic-resistant superbugs Posted: 16 Sep 2014 06:48 AM PDT Antibiotic resistance is a challenge in the treatment of diseases today as bacteria continuously mutate and develop resistance against multiple drugs designed to kill them, turning them into superbugs. New ways to enhance the efficacy of drugs used to treat respiratory system infections and antibiotic-resistant superbugs have now been uncovered by researchers. |
Cancer-fighting cocktail demonstrates promising results as treatment for advanced cervical cancer Posted: 16 Sep 2014 06:27 AM PDT Combining a standard chemotherapy drug with a second drug that stops cells from dividing improves both the survival and response rates for those with advanced cervical cancer, a new study finds. Cervical cancer used to be the leading cause of cancer death for women in the U.S., according to the CDC, but cases and deaths have declined over the years as more women have received regular Pap tests. |
More cheese, please! News study shows dairy is good for your metabolic health Posted: 16 Sep 2014 06:27 AM PDT Researchers studied the dairy-eating habits of healthy French-Canadians' and monitored how dairy consumption may have an effect on their overall metabolic health. It's well known that dairy products contain calcium and minerals good for bones, but new research has shown that dairy consumption may also have beneficial effects on metabolic health and can reduce risk of metabolic diseases such as obesity and type 2 diabetes. |
Burnout caused by more than just job stress Posted: 16 Sep 2014 06:27 AM PDT |
New therapeutic target may prevent blindness in premature babies at risk of retinopathy Posted: 16 Sep 2014 06:20 AM PDT |
Myth about Parkinson's disease debunked Posted: 16 Sep 2014 05:49 AM PDT Using advanced computer models, neuroscience researchers have gained new knowledge about the complex processes that cause Parkinson's disease. Scanning the brain of a patient suffering from Parkinson's disease reveals that in spite of dopamine cell death, there are no signs of a lack of dopamine -- even at a comparatively late stage in the process. |
What's for dinner? Rapidly identifying undescribed species in a commercial fungi packet Posted: 16 Sep 2014 05:49 AM PDT For lovers of wild foods, autumn harks a season of bounty. Fungi of dizzying variety erupt from wood and soil, luring intrepid collectors to woodlands in search of elusive but delectable wild mushrooms. Part of their appeal lies in the allure of the treasure hunt, and their mysterious not-quite-meat, not-quite-vegetable qualities that belie an almost otherworldly existence. But are the mushrooms which you are eating known to science? |
Imaging identifies asymptomatic people at risk for stroke Posted: 16 Sep 2014 05:49 AM PDT Imaging can be a cost-effective way to identify people at risk for stroke who might benefit from aggressive intervention, according to a new modeling study. The study looked at people with asymptomatic carotid artery stenosis, a narrowing of the major blood vessels supplying blood to the head due to atherosclerosis, or plaque buildup. Carotid artery stenosis is the primary cause of up to 20 percent of ischemic strokes, which result from an obstruction within a blood vessel and make up 85 percent of all strokes. |
Smoking, schizophrenia linked by alterations in brain nicotine signals Posted: 16 Sep 2014 05:48 AM PDT Schizophrenia is associated with increased rates and intensity of tobacco smoking. A growing body of research suggests that the relationship between schizophrenia and smoking stems, in part, from an effort by patients to use nicotine to self-medicate symptoms and cognitive impairment associated with the disease. A new study sheds light on this hypothesis. The authors found that the level of nicotine receptors in the brain was lower in schizophrenia patients than in a matched healthy group. |
The Gulf Stream kept going during the last Ice Age Posted: 16 Sep 2014 05:48 AM PDT The warm Atlantic water continued to flow into the icy Nordic seas during the coldest periods of the last Ice Age. An ice age may sound as a stable period of cold weather, but the name deceives. In the high latitudes of the Northern Hemisphere, the period was characterized by significant climate changes. Cold periods (stadials) switched abruptly to warmer periods (interstadials) and back. |
219 million stars: Astronomers release most detailed catalog ever made of the visible Milky Way Posted: 16 Sep 2014 05:48 AM PDT A new catalog of the visible part of the northern part of our home Galaxy, the Milky Way, includes no fewer than 219 million stars. From dark sky sites on Earth, the Milky Way appears as a glowing band stretching across the sky. To astronomers, it is the disk of our own galaxy, a system stretching across 100,000 light-years, seen edge-on from our vantage point orbiting the Sun. The disk contains the majority of the stars in the galaxy, including the Sun, and the densest concentrations of dust and gas. |
Dental, nutrition experts call for radical rethink on free sugars intake Posted: 15 Sep 2014 05:29 PM PDT Sugars in the diet should make up no more than 3 percent of total energy intake to reduce the significant financial and social burdens of tooth decay, finds new research. Free sugars are defined by the World Health Organization Nutrition Guidance Adivisory Group as follows: "Free sugars include monosaccharides and disaccharides added to foods by the manufacturer, cook or consumer, and sugars naturally present in honey, syrups, fruit juices and fruit concentrates." |
Consumption of high-fat dairy products associated with lower risk of developing diabetes Posted: 15 Sep 2014 05:29 PM PDT |
Posted: 15 Sep 2014 05:29 PM PDT The deep injection of wastewater underground is responsible for the dramatic rise in the number of earthquakes in Colorado and New Mexico since 2001, according to a new study. The Raton Basin, which stretches from southern Colorado into northern New Mexico, was seismically quiet until shortly after major fluid injection began in 1999. |
Mega-quake possible for subduction zones along 'Ring of Fire,' new study suggests Posted: 15 Sep 2014 05:29 PM PDT The magnitude of the 2011 Tohoku quake (M 9.0) caught many seismologists by surprise, prompting some to revisit the question of calculating the maximum magnitude earthquake possible for a particular fault. New research offers an alternate view that uses the concept of probable maximum magnitude events over a given period, providing the magnitude and the recurrence rate of extreme events in subduction zones for that period. Most circum Pacific subduction zones can produce earthquakes of magnitude greater than 9.0, suggests the study. |
Brain scans used to forecast early reading difficulties Posted: 15 Sep 2014 05:28 PM PDT |
3-D printing of rocks and fossils Posted: 15 Sep 2014 05:28 PM PDT |
Tropical tree microbiome discovered in Panama Posted: 15 Sep 2014 01:53 PM PDT Despite the fact that tropical forests are the most biodiverse terrestrial ecosystems on the planet, more is known about belly-button bacteria than bacteria on trees in the tropics. Scientists working on Panama's Barro Colorado Island discovered that small leaf samples from a single tree were home to more than 400 different kinds of bacteria. The combined sample from 57 tree species contained more than 7,000 different kinds. |
EEG study findings reveal how fear is processed in the brain Posted: 15 Sep 2014 01:52 PM PDT |
Researcher develops, proves effectiveness of new drug for spinal muscular atrophy Posted: 15 Sep 2014 01:52 PM PDT Approximately one out of every 40 individuals in the United States is a carrier of the gene responsible for spinal muscular atrophy (SMA), According to recent studies. This illness is a neurodegenerative disease that causes muscles to weaken over time. Now, researchers have made a recent breakthrough with the development of a new compound found to be highly effective in animal models of the disease. |
New halogenation enzyme found: Discovery to impact pharmaceutical and agricultural industries Posted: 15 Sep 2014 01:52 PM PDT |
New producer of crucial vitamin B12 discovered Posted: 15 Sep 2014 01:52 PM PDT |
'Squid skin' metamaterials project yields vivid color display Posted: 15 Sep 2014 01:52 PM PDT |
X-rays unlock a protein's SWEET side Posted: 15 Sep 2014 01:49 PM PDT Understanding just how sugar makes its way into the cell could lead to the design of better drugs for diabetes patients and an increase in the amount of fruits and vegetables farmers are able to grow. Researchers have recently uncovered one of these "pathways" into the cell by piecing together proteins slightly wider than the diameter of a strand of spider silk. |
Certain form of baldness at age 45 linked to higher risk for aggressive prostate cancer Posted: 15 Sep 2014 01:49 PM PDT A new, large cohort analysis from the prospective Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial, indicates that men who had moderate baldness affecting both the front and the crown of their head at age 45 were at a 40% increased risk of developing aggressive prostate cancer (usually indicates a faster growing tumor resulting in poorer prognosis relative to non-aggressive prostate cancer) later in life, compared to men with no baldness. There was no significant link between other patterns of baldness and prostate cancer risk. |
Cells simply avoid chromosome confusion Posted: 15 Sep 2014 12:41 PM PDT |
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