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Saturday, July 26, 2014

ScienceDaily: Top Environment News

ScienceDaily: Top Environment News


Designer potatoes on the menu to boost consumption

Posted: 25 Jul 2014 11:45 AM PDT

A decline in overall potato consumption has breeders working on "designer" spuds that meet the time constraints and unique tastes of a younger generation.

Intensity of hurricanes: New study helps improve predictions of storm intensity

Posted: 25 Jul 2014 08:08 AM PDT

While predicting the path of hurricanes has gotten better, little has been done to improve predicting a storm's intensity. That is, until now. "The air-water interface -- whether it had significant waves or significant spray -- is a big factor in storm intensity," said one expert involved in a new study. "Hurricanes gain heat energy through the interface and they lose mechanical energy at the interface."

New system to detect mercury in water systems

Posted: 25 Jul 2014 08:07 AM PDT

A new ultra-sensitive, low-cost and portable system for detecting mercury in environmental water has been developed by researchers. "The promising sensing performance of this system along with its cost-competiveness and portability make it an excellent potential alternative to current analytical techniques," says the project's leader. "This technique could provide the basis for future point-of-analysis systems for monitoring water quality on site and may help implement better monitoring processes around the world."

Monitoring rise and fall of the microbiome

Posted: 25 Jul 2014 05:04 AM PDT

Close analysis of bacteria in the human digestive tract reveals links to diet and other lifestyle factors, researchers report. Trillions of bacteria live in each person's digestive tract. Scientists believe that some of these bacteria help digest food and stave off harmful infections, but their role in human health is not well understood.

Less than 1% of UK public research funding spent on antibiotic research in past 5 years

Posted: 25 Jul 2014 05:03 AM PDT

Less than 1% of research funding awarded by public and charitable bodies to UK researchers in 2008–13 was awarded for research on antibiotics, according to new research. The study, which is the first detailed assessment of public and charitable funding to UK researchers focusing on bacteriology and antibiotic research, suggests that present levels of funding for antibiotic research in the UK are inadequate, and will need to be urgently increased if the growing crisis of antibiotic resistance is to be tackled effectively by UK researchers.

Bacteria manipulate salt to build shelters to hibernate

Posted: 25 Jul 2014 05:03 AM PDT

For the first time, researchers have detected an unknown interaction between microorganisms and salt. When Escherichia coli cells are introduced into a droplet of salt water that is left to dry, bacteria manipulate the sodium chloride crystallization to create biomineralogical biosaline 3-D morphologically complex formations, where they hibernate. Afterwards, simply by rehydrating the material, bacteria are revived. The discovery was made by chance with a home microscope.

GSAD and Plant rDNA database: Two open platforms with plant cytogenetic information

Posted: 25 Jul 2014 05:03 AM PDT

Having cytogenetic information about plants is basic to classify species and promote new studies on agriculture and crop improvement. This is the main objective of two online platforms that collect chromosome information and provide it to the scientific community.

'Light pollution' may affect love lives of birds in the Viennese Forests

Posted: 25 Jul 2014 05:03 AM PDT

Artificial light in cities exerts negative effects on humans, animals, and their environment. In an ongoing research project, behavioral biologists are investigating how blue tits in the Viennese Forests react to "light pollution." The study might help to understand effects of "light-at-night" on reproductive behavior of birds. In consequence, it could help developing concepts, minimizing negative effects on the lives of animals and the ecological system, by reducing light sources in specific regions.

New hope for powdery mildew resistant barley

Posted: 25 Jul 2014 05:01 AM PDT

New research has opened the way for the development of new lines of barley with resistance to powdery mildew. "Powdery mildew is a significant problem wherever barley is grown around the world," says the lead researcher. "Growers with infected crops can expect up to 25% reductions in yield and the barley may also be downgraded from high quality malting barley to that of feed quality, with an associated loss in market value."

Steam energy from the sun: New spongelike structure converts solar energy into steam

Posted: 24 Jul 2014 06:39 PM PDT

A new material structure generates steam by soaking up the sun. The structure -- a layer of graphite flakes and an underlying carbon foam -- is a porous, insulating material structure that floats on water. When sunlight hits the structure's surface, it creates a hotspot in the graphite, drawing water up through the material's pores, where it evaporates as steam. The brighter the light, the more steam is generated.

Saharan dust is key to formation of Bahamas' Great Bank, study finds

Posted: 24 Jul 2014 03:29 PM PDT

Saharan dust played a major role in the formation of the Bahamas islands, a new study suggests. Researchers showed that iron-rich Saharan dust provides the nutrients necessary for specialized bacteria to produce the island chain's carbonate-based foundation. Persistent winds across Africa's 3.5-million square mile Sahara Desert lifts mineral-rich sand into the atmosphere where it travels the nearly 5,000-mile northwest journey towards the U.S. and Caribbean.

Large raptors in Africa used for bushmeat, study indicates

Posted: 24 Jul 2014 03:29 PM PDT

Bushmeat, the use of native animal species for food or commercial food sale, has been heavily documented to be a significant factor in the decline of many species of primates and other mammals. However, a new study indicates that more than half of the species being consumed are birds, particularly large birds like raptors and hornbills.

Moose drool inhibits growth of toxic fungus

Posted: 24 Jul 2014 02:20 PM PDT

Research shows a surprisingly effective way to fight against a certain species of toxic grass fungus: moose saliva. Inspired by an earlier study that showed that moose grazing and saliva distribution can have a positive effect on plant growth, the research team set out to test an interesting hypothesis -- whether moose saliva may, in fact, "detoxify" the grass before it is eaten.

Antioxidant biomaterial promotes healing

Posted: 24 Jul 2014 02:19 PM PDT

The first-ever inherently antioxidant biomaterial has been created by researcher. It has the potential to prevent failure in medical devices and surgical implants. The lead researcher said the new biomaterial could be used to create scaffolds for tissue engineering, coat or build safer medical devices, promote healing in regenerative medicine, and protect cells, genes, and viruses during drug delivery. He added that the new biomaterial is easy to make and inexpensive.

Humans share fairness concerns with other species

Posted: 24 Jul 2014 02:17 PM PDT

Humans aren't the only species to react strongly to actions they consider unfair. A similar drive for fairness in monkeys and some dogs may offer insight into people's desire for equity, according to experts.

Global wildlife decline driving slave labor, organized crime

Posted: 24 Jul 2014 11:42 AM PDT

Global decline of wildlife populations is driving increases in violent conflicts, organized crime and child labor around the world, according to a experts. Researchers call for biologists to join forces with experts such as economists, political scientists, criminologists, public health officials and international development specialists to collectively tackle a complex challenge.

Tiny new species of frog from Brazil with a heroic name

Posted: 24 Jul 2014 08:26 AM PDT

Molecular analysis helps scientists discover and describe a tiny new species of narrow-mouthed frog from the genus Chiasmocleis. The news species, Chiasmocleis quilombola is named after the quilombos -- communities constituted by and used as refuges for slaves who had the brevity to escape in colonial Brazil.

Newly discovered gut virus lives in half the world's population

Posted: 24 Jul 2014 06:42 AM PDT

Odds are, there's a virus living inside your gut that has gone undetected by scientists for decades. A new study has found that more than half the world's population is host to a newly described virus, named crAssphage, which infects one of the most common gut bacterial species, Bacteroides. This bacterium thought to be connected with obesity, diabetes and other gut-related diseases.

Urban heat boosts some pest populations 200-fold, killing red maples

Posted: 23 Jul 2014 11:17 AM PDT

Urban 'heat islands' are slowly killing red maples in the southeastern United States, research shows. One factor that researchers have found that impacts the situation is that warmer temperatures increase the number of young produced by the gloomy scale insect -- a significant tree pest -- by 300 percent, which in turn leads to 200 times more adult gloomy scales on urban trees.

ScienceDaily: Living Well News

ScienceDaily: Living Well News


Designer potatoes on the menu to boost consumption

Posted: 25 Jul 2014 11:45 AM PDT

A decline in overall potato consumption has breeders working on "designer" spuds that meet the time constraints and unique tastes of a younger generation.

Experiences at every stage of life contribute to cognitive abilities in old age

Posted: 25 Jul 2014 08:09 AM PDT

Early life experiences, such as childhood socioeconomic status and literacy, may have greater influence on the risk of cognitive impairment late in life than such demographic characteristics as race and ethnicity, a large study has found. "These findings are important," explained the lead author of the study "because it challenges earlier research that suggests associations between race and ethnicity, particularly among Latinos, and an increased risk of late-life cognitive impairment and dementia.

Why do men prefer nice women? Responsiveness and desire

Posted: 25 Jul 2014 08:07 AM PDT

Does responsiveness increase sexual desire in the other person? Do men perceive responsive women as more attractive, and does the same hold true for women's perceptions of men? A recent study undertook to answer those questions.

Common blood thinner for pregnant women proven ineffective

Posted: 24 Jul 2014 04:20 PM PDT

A daily injection to the belly commonly prescribed for pregnant women at risk of developing blood clots is found to be ineffective. As many as one in 10 pregnant women have a tendency to develop blood clots in their veins, a condition called thrombophilia. The anticoagulant LMWH has been prescribed for two decades to prevent related pregnancy complications. Now, a study provides conclusive evidence that it has no positive benefits for the mother or child, and could actually cause pregnant women some minor harm.

Overweight, obese preschoolers lose more weight when parent is also treated

Posted: 24 Jul 2014 02:21 PM PDT

Primary care treatment of overweight and obese preschoolers works better when treatment targets both parent and child compared to when only the child is targeted. The study results suggest that overweight or obese children and their parents can be successfully treated in the primary care setting with the assistance of practice enhancers.

Stronger early reading skills predict higher intelligence later

Posted: 24 Jul 2014 06:42 AM PDT

A study of 1,890 identical twins has found that strong early reading skill might positively affect later intelligence. The twins, who are part of an ongoing longitudinal study in the United Kingdom, share all their genes as well as a home environment. Differences shown in intellectual ability came from experiences they didn't share. The twin with stronger early reading skills was found to have higher overall intellectual ability by age 7.

Maltreatment affects the way children's genes are activated

Posted: 24 Jul 2014 06:42 AM PDT

In a new study, researchers found that maltreatment affects the way children's genes are activated, which has implications for their long-term development and health. The researchers examined DNA methylation, a biomechanical mechanism that helps cells control which genes are turned on or off, in the blood of 56 children ages 11 to 14. Disruptions in this system affect emotional behavior, stress levels, and the immune system. These findings echo those of earlier studies of rodents.

Rosemary, oregano contain diabetes-fighting compounds

Posted: 23 Jul 2014 08:11 AM PDT

The popular culinary herbs oregano and rosemary are packed with healthful compounds, and now lab tests show they could work in much the same way as prescription anti-diabetic medication, scientists report. In their new study, researchers found that how the herbs are grown makes a difference, and they also identified which compounds contribute the most to this promising trait.

Charter schools nationwide more cost-effective, produce greater ROI

Posted: 22 Jul 2014 12:24 PM PDT

A first-ever report ties charter school funding to achievement, and finds that public charter schools are more productive than traditional public schools in 28 states. The report included in analyses of cost-effectiveness and return on investment. ROI compares two similar students, one attending a charter school and the other attending a traditional public school. Calculations then factor in dollars invested in a school, academic achievement and projected lifetime earnings – to see which school type "pays off" over time.

Nostalgia effect: Do consumers spend more when thinking about the past?

Posted: 22 Jul 2014 08:17 AM PDT

Say you are out clothes shopping and you spot something that brings you back to a special time from your childhood when you were surrounded by friends and family. Suddenly, you find yourself purchasing an expensive shirt that makes you feel like a kid again. According to a new study, we're more likely to spend money when we're feeling nostalgic.

Low-income students in high performing high schools less likely to engage in risky behavior

Posted: 22 Jul 2014 06:17 AM PDT

Low-income minority adolescents who were admitted to high-performing public charter high schools in Los Angeles were significantly less likely to engage in risky health behaviors than their peers who were not admitted to those schools. These students also scored significantly better on California state standardized math and English tests.

ScienceDaily: Most Popular News

ScienceDaily: Most Popular News


Smarter than a first-grader? Crows can perform as well as 7- to 10-year-olds on cause-and-effect water displacement tasks

Posted: 23 Jul 2014 03:08 PM PDT

In Aesop's fable about the crow and the pitcher, a thirsty bird happens upon a vessel of water, but when he tries to drink from it, he finds the water level out of his reach. Not strong enough to knock over the pitcher, the bird drops pebbles into it -- one at a time -- until the water level rises enough for him to drink his fill. New research demonstrates the birds' intellectual prowess may be more fact than fiction.

Dog jealousy: Study suggests primordial origins for the 'green-eyed monster'

Posted: 23 Jul 2014 11:17 AM PDT

Dogs exhibit jealous behaviors. The first experimental test of jealousy in dogs supports the view that there may be a more basic form of jealousy, which evolved to protect social bonds from interlopers.

Age of puberty in girls influenced by which parent 'imprinted' genes are inherited from

Posted: 23 Jul 2014 10:14 AM PDT

The age at which girls reach sexual maturity is influenced by 'imprinted' genes, a small sub-set of genes whose activity differs depending on which parent passes on that gene, according to new research.

Genetics of cancer: Non-coding DNA can finally be decoded

Posted: 23 Jul 2014 10:14 AM PDT

Cancer is a disease of the genome resulting from a combination of genetic modifications, or mutations. We inherit from our parents strong or weak predispositions to developing certain kinds of cancer; in addition, we also accumulate new mutations in our cells throughout our lifetime. Although the genetic origins of cancers have been studied for a long time, researchers were not able to measure the role of non-coding regions of the genome until now.

Strategy proposed for preventing diseases of aging

Posted: 23 Jul 2014 10:12 AM PDT

Researchers argue that medicine focuses too much on fighting diseases individually instead of concentrating on interventions that prevent multiple chronic diseases and extend healthy lifespan. They call for moving forward with strategies that have been shown to delay aging in animals. In addition to promoting a healthy diet and regular exercise, these strategies include manipulating molecular pathways that slow aging and promote healthy longevity.

Voyager spacecraft might not have reached interstellar space

Posted: 23 Jul 2014 08:41 AM PDT

In 2012, the Voyager mission team announced that the Voyager 1 spacecraft had passed into interstellar space, traveling further from Earth than any other humanmade object. But, in the nearly two years since that historic announcement, and despite subsequent observations backing it up, uncertainty about whether Voyager 1 really crossed the threshold continues.

New approach in search for extraterrestrial intelligence: Target alien polluters

Posted: 23 Jul 2014 08:12 AM PDT

Humanity is on the threshold of being able to detect signs of alien life on other worlds. By studying exoplanet atmospheres, we can look for gases like oxygen and methane that only coexist if replenished by life. But those gases come from simple life forms like microbes. What about advanced civilizations? Would they leave any detectable signs? They might, if they spew industrial pollution into the atmosphere.

Bats use polarized light to navigate: First mammal known to use polarization patterns in the sky to navigate

Posted: 22 Jul 2014 08:18 AM PDT

The bats use the way the sun's light is scattered in the atmosphere at sunset to calibrate their internal magnetic compass, which helps them to fly in the right direction, a new study has shown.

Boosting the force of empty space: Theorists propose way to amplify force of vacuum fluctuations

Posted: 22 Jul 2014 06:14 AM PDT

Vacuum fluctuations may be among the most counter-intuitive phenomena of quantum physics. Theorists have now proposed a way to amplify their force. The researchers believe that their proposed enhancement of the power of vacuum fluctuations can have profound implications for understanding Casimir and Van der Waals forces and it may even be used for applications in quantum information processing and other emerging quantum technologies.

Sea level rising in western tropical Pacific anthropogenic as result of human activity, study concludes

Posted: 20 Jul 2014 05:43 PM PDT

Sea levels likely will continue to rise in the tropical Pacific Ocean off the coasts of the Philippines and northeastern Australia as humans continue to alter the climate, a study concludes. The study authors combined past sea level data gathered from both satellite altimeters and traditional tide gauges as part of the study. The goal was to find out how much a naturally occurring climate phenomenon called the Pacific Decadal Oscillation, or PDO, influences sea rise patterns in the Pacific.

Viral relics show cancer's 'footprint' on our evolution

Posted: 17 Jul 2014 11:20 AM PDT

Cancer has left its 'footprint' on our evolution, according to a study which examined how the relics of ancient viruses are preserved in the genomes of 38 mammal species. The team found that as animals increased in size they 'edited out' potentially cancer-causing relics from their genomes so that mice have almost ten times as many ERVs as humans. The findings offer a clue as to why larger animals have a lower incidence of cancer than expected compared to smaller ones, and could help in the search for new anti-viral therapies.

Do women perceive other women in red as more sexually receptive?

Posted: 11 Jul 2014 06:21 AM PDT

Women are more likely to wear a red shirt when they are expecting to meet an attractive man, relative to an unattractive man or a woman. But do women view other women in red as being more sexually receptive? And would that result in a woman guarding her mate against a woman in red? A study has sought to answer these questions.