ScienceDaily: Latest Science News
Kissing helps us find the right partner – and keep them
Analysis of herbal products shows contamination is common
Brain mechanisms behind a debilitating sleep disorder
Complex relationship between phosphorus levels, nitrogen removal in lakes
New antiviral response discovered in mammals
Newly discovered gene regulator could precisely target sickle cell disease
Iron in Earth's core weakens before melting
One in five persons seeking pre-travel advice are high-risk travelers
Innate virus-killing power discovered in mammals
Watery asteroid discovered in dying star points to habitable exoplanets
Water discovered in remnants of extrasolar rocky world orbiting white dwarf
Hunter-gatherers and immigrant farmers lived together for 2,000 years in Central Europe
Ancient DNA unravels Europe's genetic diversity
Sticks and stones: Brain releases natural painkillers during social rejection
How red crabs on Christmas Island speak for the tropics
Hybrid cars are status symbol of sorts for seniors
How microbes survive in freezing conditions
Brain development differs in children who stutter
Cancer genome atlas exposes more secrets of lethal brain tumor
As sea level rises, Everglades' freshwater plants perish
Ethanol not a major factor in reducing gas prices
A silent epidemic: Minor traumatic brain injury
Pulp and paper manufacture: Pulp friction cleans up 'Brockovich' chemical
Massive spruce beetle outbreak in Colorado tied to drought
New model for neurotransmitter release, proposed by Nobel prize winner
Previously unstudied gene is essential for normal nerve development
How a ubiquitous herpesvirus sometimes leads to cancer
Elephants know what it means to point to something, no training required
Circadian rhythms in skin stem cells protect us against UV rays
Molecule produced during exercise boosts brain health
Genetic variant that increases testicular cancer risk in caucasians evolved to protect light skin
Laser technique enables 3-D analysis and natural color images
City of Providence is taking on big tobacco – and winning
Stomach cells naturally revert to stem cells
Eat more, weigh less: Worm study provides clues to better fat-loss therapies for humans
Genes protect themselves against being silenced
'Ship in a bottle' detects dangerous vapors: Scientists trap metallic compounds to sniff out signs of hazardous solvents
Malaria, toxoplasmosis: Toward new lines of research?
Gene movements observed in vivo
Genes predispose some people to focus on the negative
Is a constructive conservation the last chance for biodiversity? Pragmatic approach to saving what can be saved
Wind energy and radar as partners
'Stadium waves' could explain lull in global warming
'Peanut butter' test can help diagnose Alzheimer's disease, researchers find
US health spending projected to grow an average of 5.8 percent annually through 2022
Wetland restoration in the northern Everglades: Watershed potential and nutrient legacies
The tundra: A dark horse in planet Earth's greenhouse gas budget
Soft shells and strange star clusters
Direct 'writing' of artificial cell membranes on graphene
Osteoporosis a major threat to women's future independence
Scientists find potential new targets for anti-inflammatory therapies
Guardrail barrier made with Mediterranean tapeweed residues
Several top websites use device fingerprinting to secretly track users
3D model reveals new information about iconic volcano
How to determine whether a patient is safe to drive
Origin of MERS coronavirus identified
Organ donor promotion brings increase in registrations
Enigmatic neurons help flies get oriented
Discovery should save wheat farmers millions of dollars
Kissing helps us find the right partner – and keep them
Posted: 10 Oct 2013 05:51 PM PDT
What's in a kiss? A new study suggests kissing helps us size up potential partners and, once in a relationship, may be a way of getting a partner to stick around. 'Kissing in human sexual relationships is incredibly prevalent in various forms across just about every society and culture,' says one of the researchers. 'Kissing is seen in our closest primate relatives, chimps and bonobos, but it is much less intense and less commonly used.
Analysis of herbal products shows contamination is common
Posted: 10 Oct 2013 05:51 PM PDT
Most herbal products, available to buy as alternative medicines, may be contaminated. Researchers demonstrate the presence of contamination and substitution of plant species in a selection of herbal products using DNA barcoding.
Brain mechanisms behind a debilitating sleep disorder
Posted: 10 Oct 2013 11:29 AM PDT
Cataplexy is characterized by muscle paralysis during cognitive awareness. Until now, researchers have not understood this condition well. Now research has shown that the neuro-degeneration of the brain cells that synthesize the chemical hypocretin causes the noradrenaline system to malfunction. When the norandrenaline system stops working properly, it fails to keep the motor and cognitive systems coupled. This results in cataplexy -- the muscles fall asleep but the brain stays awake.
Complex relationship between phosphorus levels, nitrogen removal in lakes
Posted: 10 Oct 2013 11:29 AM PDT
In the land of 10,000 lakes, one lake has been the starting place for research with implications for big lakes around the world. Building from studies of nitrogen levels in Lake Superior, the new research uncovered a good news/bad news scenario for lake health that has long-term, global implications for pollution control efforts.
New antiviral response discovered in mammals
Posted: 10 Oct 2013 11:27 AM PDT
Researchers have discovered a part of the innate immune system in mice that had only been known in plants and invertebrates. This system seems more visible in stem and progenitor cells, which it protects from viral infection.
Newly discovered gene regulator could precisely target sickle cell disease
Posted: 10 Oct 2013 11:27 AM PDT
A research team has discovered a new genetic target for potential therapy of sickle cell disease. The target, called an enhancer, controls a molecular switch in red blood cells called BCL11A that, in turn, regulates hemoglobin production.
Iron in Earth's core weakens before melting
Posted: 10 Oct 2013 11:27 AM PDT
The iron in Earth's inner core weakens dramatically before it melts, explaining the unusual properties that exist in the moon-sized solid center of our planet that have, up until now, been difficult to understand.
One in five persons seeking pre-travel advice are high-risk travelers
Posted: 10 Oct 2013 11:27 AM PDT
Researchers have found that high-risk travelers account for nearly 20 percent of patients using the five clinics of the Boston Area Travel Medicine Network. The study also found that these travelers often visited destinations with malaria and typhoid risk.
Innate virus-killing power discovered in mammals
Posted: 10 Oct 2013 11:27 AM PDT
Scientists have a promising new approach to combating deadly human viruses thanks to an educated hunch by a microbiology professor, and his 20 years of research on plants, fruit flies, nematodes and mice. Researchers have discovered that, like plants and invertebrate animals, mammals use the RNA interference process to destroy viruses within their own cells. Until now, scientists were unable to prove that mammals use RNAi for killing viruses. The findings could help create vaccines against deadly infections, including SARS, West Nile, dengue, Hepatitis C and influenza.
Watery asteroid discovered in dying star points to habitable exoplanets
Posted: 10 Oct 2013 11:27 AM PDT
Latest research on rocky relics suggests a distant planetary system, now past its "death throes", had very similar water 'delivery system' to our own -- and consequently the potential to contain habitable exoplanets complete with water.
Water discovered in remnants of extrasolar rocky world orbiting white dwarf
Posted: 10 Oct 2013 11:27 AM PDT
Astrophysicists have found the first evidence of a water-rich rocky planetary body outside our solar system in its shattered remains orbiting a white dwarf.
Hunter-gatherers and immigrant farmers lived together for 2,000 years in Central Europe
Posted: 10 Oct 2013 11:27 AM PDT
Indigenous hunter-gatherers and immigrant farmers lived side-by-side for more than 2,000 years in Central Europe, before the hunter-gatherer communities died out or adopted the agricultural lifestyle.
Ancient DNA unravels Europe's genetic diversity
Posted: 10 Oct 2013 11:26 AM PDT
Ancient DNA recovered from a time series of skeletons in Germany spanning 4,000 years of prehistory has been used to reconstruct the first detailed genetic history of m
Hapa unapata miziki mipya na burudani.
Saturday, 12 October 2013
ScienceDaily: Latest Science News
ScienceDaily: Latest Science News
Video captions improve comprehension
The perils of texting while driving
Innovation in renewable-energy technologies is booming
Quantum conductors benefit from growth on smooth foundations
Turning vapors into foam-like polymer coatings
Crystals in Picabo's rocks point to 'recycled' super-volcanic magma chambers
Rust can power up artificial photosynthesis: Chemists produce power boost critical to novel energy harvesting applications
How research ecologists can benefit urban design projects
Popcorn at the movies: Oral interference sabotages advertising effects
Uniformity: The secret of better fusion ignition
Compact optical chips? Photons on demand now possible
A holistic approach catches eye disease early
New device harnesses sun and sewage to produce hydrogen fuel
Mix of graphene nanoribbons, polymer has potential for cars, soda, beer
No increased risk of suicide in patients using smoking cessation drugs
Unregulated, agricultural ammonia threatens U.S. national parks' ecology
Boomboxes amplify predatory bird sounds and are used as cues
Look out above: Experiment explores innate visual behavior in mice
Suicidal talk on Twitter mirrors state suicide rates
Video captions improve comprehension
Posted: 11 Oct 2013 10:53 AM PDT
A professor found that a simple change -- turning on captions during educational videos -- dramatically improved students' test scores and comprehension.
The perils of texting while driving
Posted: 11 Oct 2013 10:53 AM PDT
US research reveals that four out of five college student drivers have used their cell phones to send or receive text messages while driving despite the majority recognizing that the activity represents a risk.
Innovation in renewable-energy technologies is booming
Posted: 11 Oct 2013 10:53 AM PDT
A new study shows that research investments and growing markets have fueled a huge rise in new patents.
Quantum conductors benefit from growth on smooth foundations
Posted: 11 Oct 2013 10:50 AM PDT
Researchers have developed a speedway for future devices, an exotic type of electrical conductor called a topological insulator (TI). In a new article researchers report that they grew two types of TI materials inside an ultra-high vacuum chamber on both smooth and rough surfaces and then evaluated their abilities to transport electrons.
Turning vapors into foam-like polymer coatings
Posted: 11 Oct 2013 07:12 AM PDT
A researcher has developed a process to grow highly customizable coatings of foam-like polymers.
Crystals in Picabo's rocks point to 'recycled' super-volcanic magma chambers
Posted: 11 Oct 2013 06:40 AM PDT
An examination of crystals of zircon in rhyolites, an igneous rock, from the Snake River Plain solidifies evidence for a new view of the life cycle of super-volcanic eruptions, and in tandem with previous work suggests another super-eruption in the Yellowstone volcanic field is unlikely for another million years, say scientists.
Rust can power up artificial photosynthesis: Chemists produce power boost critical to novel energy harvesting applications
Posted: 11 Oct 2013 06:39 AM PDT
Scientists trying to develop artificial photosynthesis for unique applications, like harvesting solar energy, have focused on narrowing the photovoltage gap between the two principle reactions of oxidation and reduction. Chemists report nearly bridging that gap using inexpensive materials in a process that could lead to new energy applications.
How research ecologists can benefit urban design projects
Posted: 11 Oct 2013 06:39 AM PDT
An urban construction site is not usually considered a suitable place to conduct research, but "designed experiments" have been included in some substantial projects. These have produced data that improved how the projects were conceptualized, built, and monitored. A new article provides maps of the contracting process and advice for research ecologists who want to involve themselves in the design of construction projects.
Popcorn at the movies: Oral interference sabotages advertising effects
Posted: 11 Oct 2013 06:38 AM PDT
Advertising uses repetition to increase consumers' preference for brands. Initially, novel brands gain in popularity due to repetition, which increases the likelihood that consumers later buy the brands. Particularly for novel brands, excessive exposure and repetition is necessary to establish the brand name in the first place.
Uniformity: The secret of better fusion ignition
Posted: 11 Oct 2013 06:36 AM PDT
Theoretical physicists use simulations to investigate the uniformity of irradiation at the ignition stage of thermonuclear fusion reaction. One of the ways to achieve thermonuclear fusion is through a controlled reaction between two light variants of hydrogen, called deuterium and tritium. Scientists have now made theoretical calculations indicating how best to improve the ignition stage of fusion reaction. Their approach involves increasing the uniformity of irradiation using high-power laser beams on the external shell of a spherical capsule containing a mix of deuterium and tritium.
Compact optical chips? Photons on demand now possible
Posted: 11 Oct 2013 06:36 AM PDT
A breakthrough in photonics that will help create extremely compact optical chips, a hair's width in size and delivering a photon at a time, has been achieved.
A holistic approach catches eye disease early
Posted: 11 Oct 2013 06:25 AM PDT
An automated assessment of multiple datasets using artificial intelligence accurately diagnoses a common cause of blindness.
New device harnesses sun and sewage to produce hydrogen fuel
Posted: 10 Oct 2013 05:53 PM PDT
A novel device that uses only sunlight and wastewater to produce hydrogen gas could provide a sustainable energy source while improving the efficiency of wastewater treatment. The hybrid device combines a microbial fuel cell (MFC) and a type of solar cell called a photoelectrochemical cell.
Mix of graphene nanoribbons, polymer has potential for cars, soda, beer
Posted: 10 Oct 2013 05:53 PM PDT
A discovery aims to make vehicles that run on compressed natural gas more practical and may also enhance food packaging.
No increased risk of suicide in patients using smoking cessation drugs
Posted: 10 Oct 2013 05:53 PM PDT
A study to assess whether patients prescribed smoking cessation drugs are at an increased risk of suicide, self-harm and treated depression compared with users of nicotine replacement therapy has found no evidence of an increased risk.
Unregulated, agricultural ammonia threatens U.S. national parks' ecology
Posted: 10 Oct 2013 05:51 PM PDT
Thirty-eight U.S. national parks are experiencing "accidental fertilization" at or above a critical threshold for ecological damage, according to a new study. Unless significant controls on ammonia emissions are introduced at a national level, they say, little improvement is likely between now and 2050.
Boomboxes amplify predatory bird sounds and are used as cues
Posted: 10 Oct 2013 05:49 PM PDT
Researchers use boomboxes in the forest to study how smaller birds avoid predators.
Look out above: Experiment explores innate visual behavior in mice
Posted: 10 Oct 2013 09:47 AM PDT
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...
Video captions improve comprehension
The perils of texting while driving
Innovation in renewable-energy technologies is booming
Quantum conductors benefit from growth on smooth foundations
Turning vapors into foam-like polymer coatings
Crystals in Picabo's rocks point to 'recycled' super-volcanic magma chambers
Rust can power up artificial photosynthesis: Chemists produce power boost critical to novel energy harvesting applications
How research ecologists can benefit urban design projects
Popcorn at the movies: Oral interference sabotages advertising effects
Uniformity: The secret of better fusion ignition
Compact optical chips? Photons on demand now possible
A holistic approach catches eye disease early
New device harnesses sun and sewage to produce hydrogen fuel
Mix of graphene nanoribbons, polymer has potential for cars, soda, beer
No increased risk of suicide in patients using smoking cessation drugs
Unregulated, agricultural ammonia threatens U.S. national parks' ecology
Boomboxes amplify predatory bird sounds and are used as cues
Look out above: Experiment explores innate visual behavior in mice
Suicidal talk on Twitter mirrors state suicide rates
Video captions improve comprehension
Posted: 11 Oct 2013 10:53 AM PDT
A professor found that a simple change -- turning on captions during educational videos -- dramatically improved students' test scores and comprehension.
The perils of texting while driving
Posted: 11 Oct 2013 10:53 AM PDT
US research reveals that four out of five college student drivers have used their cell phones to send or receive text messages while driving despite the majority recognizing that the activity represents a risk.
Innovation in renewable-energy technologies is booming
Posted: 11 Oct 2013 10:53 AM PDT
A new study shows that research investments and growing markets have fueled a huge rise in new patents.
Quantum conductors benefit from growth on smooth foundations
Posted: 11 Oct 2013 10:50 AM PDT
Researchers have developed a speedway for future devices, an exotic type of electrical conductor called a topological insulator (TI). In a new article researchers report that they grew two types of TI materials inside an ultra-high vacuum chamber on both smooth and rough surfaces and then evaluated their abilities to transport electrons.
Turning vapors into foam-like polymer coatings
Posted: 11 Oct 2013 07:12 AM PDT
A researcher has developed a process to grow highly customizable coatings of foam-like polymers.
Crystals in Picabo's rocks point to 'recycled' super-volcanic magma chambers
Posted: 11 Oct 2013 06:40 AM PDT
An examination of crystals of zircon in rhyolites, an igneous rock, from the Snake River Plain solidifies evidence for a new view of the life cycle of super-volcanic eruptions, and in tandem with previous work suggests another super-eruption in the Yellowstone volcanic field is unlikely for another million years, say scientists.
Rust can power up artificial photosynthesis: Chemists produce power boost critical to novel energy harvesting applications
Posted: 11 Oct 2013 06:39 AM PDT
Scientists trying to develop artificial photosynthesis for unique applications, like harvesting solar energy, have focused on narrowing the photovoltage gap between the two principle reactions of oxidation and reduction. Chemists report nearly bridging that gap using inexpensive materials in a process that could lead to new energy applications.
How research ecologists can benefit urban design projects
Posted: 11 Oct 2013 06:39 AM PDT
An urban construction site is not usually considered a suitable place to conduct research, but "designed experiments" have been included in some substantial projects. These have produced data that improved how the projects were conceptualized, built, and monitored. A new article provides maps of the contracting process and advice for research ecologists who want to involve themselves in the design of construction projects.
Popcorn at the movies: Oral interference sabotages advertising effects
Posted: 11 Oct 2013 06:38 AM PDT
Advertising uses repetition to increase consumers' preference for brands. Initially, novel brands gain in popularity due to repetition, which increases the likelihood that consumers later buy the brands. Particularly for novel brands, excessive exposure and repetition is necessary to establish the brand name in the first place.
Uniformity: The secret of better fusion ignition
Posted: 11 Oct 2013 06:36 AM PDT
Theoretical physicists use simulations to investigate the uniformity of irradiation at the ignition stage of thermonuclear fusion reaction. One of the ways to achieve thermonuclear fusion is through a controlled reaction between two light variants of hydrogen, called deuterium and tritium. Scientists have now made theoretical calculations indicating how best to improve the ignition stage of fusion reaction. Their approach involves increasing the uniformity of irradiation using high-power laser beams on the external shell of a spherical capsule containing a mix of deuterium and tritium.
Compact optical chips? Photons on demand now possible
Posted: 11 Oct 2013 06:36 AM PDT
A breakthrough in photonics that will help create extremely compact optical chips, a hair's width in size and delivering a photon at a time, has been achieved.
A holistic approach catches eye disease early
Posted: 11 Oct 2013 06:25 AM PDT
An automated assessment of multiple datasets using artificial intelligence accurately diagnoses a common cause of blindness.
New device harnesses sun and sewage to produce hydrogen fuel
Posted: 10 Oct 2013 05:53 PM PDT
A novel device that uses only sunlight and wastewater to produce hydrogen gas could provide a sustainable energy source while improving the efficiency of wastewater treatment. The hybrid device combines a microbial fuel cell (MFC) and a type of solar cell called a photoelectrochemical cell.
Mix of graphene nanoribbons, polymer has potential for cars, soda, beer
Posted: 10 Oct 2013 05:53 PM PDT
A discovery aims to make vehicles that run on compressed natural gas more practical and may also enhance food packaging.
No increased risk of suicide in patients using smoking cessation drugs
Posted: 10 Oct 2013 05:53 PM PDT
A study to assess whether patients prescribed smoking cessation drugs are at an increased risk of suicide, self-harm and treated depression compared with users of nicotine replacement therapy has found no evidence of an increased risk.
Unregulated, agricultural ammonia threatens U.S. national parks' ecology
Posted: 10 Oct 2013 05:51 PM PDT
Thirty-eight U.S. national parks are experiencing "accidental fertilization" at or above a critical threshold for ecological damage, according to a new study. Unless significant controls on ammonia emissions are introduced at a national level, they say, little improvement is likely between now and 2050.
Boomboxes amplify predatory bird sounds and are used as cues
Posted: 10 Oct 2013 05:49 PM PDT
Researchers use boomboxes in the forest to study how smaller birds avoid predators.
Look out above: Experiment explores innate visual behavior in mice
Posted: 10 Oct 2013 09:47 AM PDT
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...
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