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Tuesday, May 20, 2014
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ScienceDaily: Top Science News
ScienceDaily: Top Science News |
- Analyzing sun-like stars that eat Earth-like planets
- I like your genes: People more likely to choose a spouse with similar DNA
- Engineer invents a way to beam power to medical chips deep inside the body
- Taste test: Could sense of taste affect length of life?
- Site of mega-development project in Mexico is a biodiversity hotspot
- Liberating devices from their power cords
- Earth organisms survive under Martian conditions: Methanogens stay alive in extreme heat and cold
- Antarctica's ice losses on the rise
- 'Smoking gun' evidence for theory that Saturn's collapsing magnetic tail causes auroras
- Greenland will be far greater contributor to sea rise than expected: Work reveals long, deep valleys connecting ice cap to ocean
- Biochemists Reduce Sickling, Progression of Sickle Cell Disease in Mice
| Analyzing sun-like stars that eat Earth-like planets Posted: 19 May 2014 06:50 PM PDT Astronomers have developed a model that estimates the effect that ingesting large amounts of the rocky material from which 'terrestrial' planets like Earth, Mars and Venus are made has on a star's chemical composition and has used the model to analyze a pair of twin stars which both have their own planets.  |
| I like your genes: People more likely to choose a spouse with similar DNA Posted: 19 May 2014 01:07 PM PDT Individuals are more genetically similar to their spouses than they are to randomly selected individuals from the same population, according to a new study. Scientists already knew that people tend to marry others who have similar characteristics, including religion, age, race, income, body type and education, among others. Scientists now show that people also are more likely to pick mates who have similar DNA.  |
| Engineer invents a way to beam power to medical chips deep inside the body Posted: 19 May 2014 01:07 PM PDT Researchers have invented a way to wirelessly beam power to programmable devices deep inside the body. These medical chips could be as small as a grain of rice. They would sit alongside nerves, muscles and other tissues. The chips could be programmed for a wide variety of medical tasks. The wireless power recharging would enable them to be implanted once and repowered as need be. This is a platform technology to enable a new therapeutic category -- 'electroceutical' devices.  |
| Taste test: Could sense of taste affect length of life? Posted: 19 May 2014 01:05 PM PDT Perhaps one of the keys to good health isn't just what you eat but how you taste it. Taste buds -- yes, the same ones you may blame for that sweet tooth or French fry craving -- may in fact have a powerful role in a long and healthy life -- at least for fruit flies. Bitter tastes could have negative effects on lifespan, sweet tastes had positive effects, and the ability to taste water had the most significant impact -- flies that could not taste water lived up to 43% longer than other flies.  |
| Site of mega-development project in Mexico is a biodiversity hotspot Posted: 19 May 2014 10:48 AM PDT Cabo Pulmo is a close-knit community in Baja California Sur, Mexico, and the best preserved coral reef in the Gulf of California. But the lands adjacent to the reef are under threat from a mega-development project, 'Cabo Dorado,' should construction go ahead. Scientists have published a report on the terrestrial biodiversity of the Cabo Pulmo region that shows the project is situated in an area of extreme conservation value.  |
| Liberating devices from their power cords Posted: 19 May 2014 09:25 AM PDT A new type of supercapacitor that can hold a charge when it takes a lickin' has been developed. It is the first "multi-functional" energy storage device that can operate while subject to realistic static and dynamic loads – advancing the day when everything from cell phones to electric vehicles will no longer need separate batteries.  |
| Earth organisms survive under Martian conditions: Methanogens stay alive in extreme heat and cold Posted: 19 May 2014 08:42 AM PDT New research suggests that methanogens -- among the simplest and oldest organisms on Earth -- could survive on Mars. Methanogens, microorganisms in the domain Archaea, use hydrogen as their energy source and carbon dioxide as their carbon source, to metabolize and produce methane, also known as natural gas. Methanogens live in swamps and marshes, but can also be found in the gut of cattle, termites and other herbivores as well as in dead and decaying matter.  |
| Antarctica's ice losses on the rise Posted: 19 May 2014 08:02 AM PDT Three years of observations show that the Antarctic ice sheet is now losing 159 billion tons of ice each year -- twice as much as when it was last surveyed. Scientists have now produced the first complete assessment of Antarctic ice sheet elevation change.  |
| 'Smoking gun' evidence for theory that Saturn's collapsing magnetic tail causes auroras Posted: 19 May 2014 06:04 AM PDT Researchers have captured stunning images of Saturn's auroras as the planet's magnetic field is battered by charged particles from the Sun.  |
| Posted: 18 May 2014 01:44 PM PDT Greenland's icy reaches are far more vulnerable to warm ocean waters from climate change than had been thought, according to new research by glaciologists. The work shows previously uncharted deep valleys stretching for dozens of miles under the Greenland Ice Sheet.  |
| Biochemists Reduce Sickling, Progression of Sickle Cell Disease in Mice Posted: 16 May 2014 05:26 PM PDT New preclinical research on the molecular mechanisms responsible for sickle cell disease could aid efforts to develop much needed treatments for this devastating blood disorder that affects millions worldwide. The sickling of red blood cells is the hallmark of this disease. Normally shaped like a donut, the diseased cells instead have a crescent-like appearance. This can lead to anemia, chest pain, lung problems and stroke.  |
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ScienceDaily: Top Technology News
ScienceDaily: Top Technology News |
- Analyzing sun-like stars that eat Earth-like planets
- Internet-mediated exercise program improves quality of life in COPD patients
- Chemists discover structure of cancer drug candidate
- Engineer invents a way to beam power to medical chips deep inside the body
- Chemists challenge conventional understanding of how photocatalysis works
- Is household debt a key cause of recession?
- Could texting and autocorrect affect kids' writing skills?
- Site of mega-development project in Mexico is a biodiversity hotspot
- Improved supercapacitors for super batteries, electric vehicles
- Lab shows powerful, possible next step in electric motors
- Liberating devices from their power cords
- Neutron beams reveal how antibodies cluster in solution
- Earth organisms survive under Martian conditions: Methanogens stay alive in extreme heat and cold
- Engineers find way to lower risk of midair collisions for small aircraft
- Solar energy prospects are bright for Scotland, experts say
- Robot-assisted prostate cancer surgery as safe but more expensive as open surgery in older men
- Robot suit helps paraplegic patients
- How surroundings influence theft in public transport stations
- 'Smoking gun' evidence for theory that Saturn's collapsing magnetic tail causes auroras
- Hybrid electric vehicles: Logged driving route can reduce energy consumption by 10 percent
| Analyzing sun-like stars that eat Earth-like planets Posted: 19 May 2014 06:50 PM PDT Astronomers have developed a model that estimates the effect that ingesting large amounts of the rocky material from which 'terrestrial' planets like Earth, Mars and Venus are made has on a star's chemical composition and has used the model to analyze a pair of twin stars which both have their own planets.  |
| Internet-mediated exercise program improves quality of life in COPD patients Posted: 19 May 2014 03:45 PM PDT A pedometer-based walking program supported by Internet-based instruction and support can improve health-related quality of life in patients with chronic obstructive pulmonary disease, according to a new study. "Low levels of physical activity among individuals with COPD can contribute to impaired quality of life and have been linked to higher risk of exacerbations, hospitalizations, and death. However, getting patients to change behavior and stick to an exercise program can be difficult," said the lead author.  |
| Chemists discover structure of cancer drug candidate Posted: 19 May 2014 03:45 PM PDT Chemists have determined the correct structure of a highly promising anticancer compound approved by the U.S. Food and Drug Administration (FDA) for clinical trials in cancer patients. In the new study, scientists show that TIC10's structure differs subtly from a version published by another group last year, and that the previous structure associated with TIC10 in fact describes a molecule that lacks TIC10's anticancer activity.  |
| Engineer invents a way to beam power to medical chips deep inside the body Posted: 19 May 2014 01:07 PM PDT Researchers have invented a way to wirelessly beam power to programmable devices deep inside the body. These medical chips could be as small as a grain of rice. They would sit alongside nerves, muscles and other tissues. The chips could be programmed for a wide variety of medical tasks. The wireless power recharging would enable them to be implanted once and repowered as need be. This is a platform technology to enable a new therapeutic category -- 'electroceutical' devices.  |
| Chemists challenge conventional understanding of how photocatalysis works Posted: 19 May 2014 01:07 PM PDT Photocatalysts are most often semiconductors, with metals (platinum, gold) added to promote their activity. However, these metals (or 'promoters') are expensive; hence the quest for more economical alternatives. Now a team of chemists has come up with a model to explain this promoting effect that could shift the focus in the search for substitutes of the metals, and help identify better promoters for photocatalysis in the near future.  |
| Is household debt a key cause of recession? Posted: 19 May 2014 01:05 PM PDT During the Great American Recession of the 21st century, more than 8 million people lost their jobs and more than 4 million homes were lost to foreclosure. In the years immediately preceding the recession, Americans doubled their household debt to $14 trillion. According to a new book these events were directly related.  |
| Could texting and autocorrect affect kids' writing skills? Posted: 19 May 2014 01:05 PM PDT An English teacher sees the effects of students' growing up in an age when communication is done in an abbreviated text language and where they depend on autocorrect to automatically solve the "i before e" literary dilemma.  |
| Site of mega-development project in Mexico is a biodiversity hotspot Posted: 19 May 2014 10:48 AM PDT Cabo Pulmo is a close-knit community in Baja California Sur, Mexico, and the best preserved coral reef in the Gulf of California. But the lands adjacent to the reef are under threat from a mega-development project, 'Cabo Dorado,' should construction go ahead. Scientists have published a report on the terrestrial biodiversity of the Cabo Pulmo region that shows the project is situated in an area of extreme conservation value.  |
| Improved supercapacitors for super batteries, electric vehicles Posted: 19 May 2014 09:25 AM PDT Researchers have developed a novel nanometer scale ruthenium oxide anchored nanocarbon graphene foam architecture that improves the performance of supercapacitors, a development that could mean faster acceleration in electric vehicles and longer battery life in portable electronics.  |
| Lab shows powerful, possible next step in electric motors Posted: 19 May 2014 09:25 AM PDT Scientists have demonstrated electric motors or generators that eliminate rare earth metals. Typical motors are powered through the electromagnetic interaction between a rotor, which contains rare earth metals and rotates, and another part known as a stator, which is stationary but houses electromagnetic sources. The new solution, called a double-stator switched reluctance machine (DSSRM), has two stators, one on either side of the rotor, that cause an electromagnetic reaction that produces power. This approach produces significantly greater power and torque at a given size and weight than traditional motor technologies without the use of permanent magnets.  |
| Liberating devices from their power cords Posted: 19 May 2014 09:25 AM PDT A new type of supercapacitor that can hold a charge when it takes a lickin' has been developed. It is the first "multi-functional" energy storage device that can operate while subject to realistic static and dynamic loads – advancing the day when everything from cell phones to electric vehicles will no longer need separate batteries.  |
| Neutron beams reveal how antibodies cluster in solution Posted: 19 May 2014 08:44 AM PDT Results from neutron spin-echo analysis are an important advance towards enabling subcutaneous injections of concentrated biopharmaceuticals used to treat cancer and autoimmune disorders (e.g. arthritis, multiple sclerosis). The insights obtained could help drug companies reduce the viscosity and mitigate phase separation in injectable biopharmaceuticals, making them easier to manufacture and fluid enough to be self-administered in the home.  |
| Earth organisms survive under Martian conditions: Methanogens stay alive in extreme heat and cold Posted: 19 May 2014 08:42 AM PDT New research suggests that methanogens -- among the simplest and oldest organisms on Earth -- could survive on Mars. Methanogens, microorganisms in the domain Archaea, use hydrogen as their energy source and carbon dioxide as their carbon source, to metabolize and produce methane, also known as natural gas. Methanogens live in swamps and marshes, but can also be found in the gut of cattle, termites and other herbivores as well as in dead and decaying matter.  |
| Engineers find way to lower risk of midair collisions for small aircraft Posted: 19 May 2014 08:03 AM PDT Researchers have developed new modifications for technology that helps pilots of small aircraft avoid midair collisions. The modified tools significantly improved pilot response times in making decisions to avert crashes.  |
| Solar energy prospects are bright for Scotland, experts say Posted: 19 May 2014 08:01 AM PDT Installing state-of-the-art solar panels on a quarter of a million roofs could meet one-sixth of Scotland's electricity demands, experts say. Scientists say the strategy could ease the plight of one in three Scottish households, which currently struggle to provide themselves with adequate heat and hot water. Researchers, business leaders and public sector experts have contributed to a report which sets out how Scotland could benefit from solar power.  |
| Robot-assisted prostate cancer surgery as safe but more expensive as open surgery in older men Posted: 19 May 2014 08:01 AM PDT Minimally invasive robot-assisted surgery, which has become the main choice for surgically removing cancerous prostate glands during recent years, is as safe as open surgery for Medicare patients over age 65, a study shows. As of 2009, more than 60 percent of all radical prostatectomies in the U.S. were done robotically.  |
| Robot suit helps paraplegic patients Posted: 19 May 2014 06:22 AM PDT For most paraplegic patients, being able to walk again remains a dream. The HAL robot suit can help them regain a certain degree of mobility and activity. A team of experts has been testing the exoskeleton that was originally developed in Japan since 2011, and have had excellent results. Paraplegia is essentially the result of damaged nerve structures in the spine. In order to perform a movement, the brain sends out a signal via the spinal cord and its surrounding nerves to a muscle. Due to his injury, a paraplegic patient's muscles operate with weakened signals, and the signal does not arrive in the leg or in the arm.  |
| How surroundings influence theft in public transport stations Posted: 19 May 2014 06:19 AM PDT Scientists have explored the effect station surroundings have on the levels of crime within them. This piece of work takes into account a range of possible predictor variables of pick-pocketing, selected from both the internal design of stations and features of their nearby environments.  |
| 'Smoking gun' evidence for theory that Saturn's collapsing magnetic tail causes auroras Posted: 19 May 2014 06:04 AM PDT Researchers have captured stunning images of Saturn's auroras as the planet's magnetic field is battered by charged particles from the Sun.  |
| Hybrid electric vehicles: Logged driving route can reduce energy consumption by 10 percent Posted: 19 May 2014 06:04 AM PDT For long distance driving, plug-in hybrid electric vehicles use the internal combustion engine more than necessary. A new method has now been developed to make the car remember the commuter routes and thereby make optimal use of the battery. The strategy can reduce fuel consumption by up to 10 percent compared to conventional methods.  |
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