Τρίτη 21 Ιανουαρίου 2014

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News


Toddlers' aggression strongly associated with genetic factors

Posted: 20 Jan 2014 04:24 PM PST

A new study provides greater understanding of how to address childhood aggression, and suggests that it is strongly associated with genetic factors in the

DNA barcodes change view on how nature is structured

Posted: 20 Jan 2014 02:33 PM PST

Understanding who feeds on whom and how often is the basis for understanding how nature is built and works. A new study now suggests that the methods used to depict food webs may have a strong impact

New study finds mistimed sleep disrupts rhythms of genes in humans

Posted: 20 Jan 2014 02:33 PM PST

A new study found that the daily rhythms of our genes are disrupted when sleep times

Radiation before surgery more than doubles mesothelioma survival

Posted: 20 Jan 2014 02:32 PM PST

Results of clinical research that treated mesothelioma with radiation before surgery show the three-year survival rate more than doubled for study participants afflicted with this deadly disease,

People who enjoy life maintain better physical function as they age

Posted: 20 Jan 2014 09:14 AM PST

People who enjoy life maintain better physical function in daily activities and keep up faster walking speeds as they age, compared with people who enjoy life less, according to a new

FAK helps tumor cells enter bloodstream

Posted: 20 Jan 2014 09:14 AM PST

Cancer cells have something that every prisoner longs for -— a master key that allows them to escape. A new study describes how a protein that promotes tumor growth also enables cancer cells to use

Deciphering plants' electrical signals to devise new environmental biosensors

Posted: 20 Jan 2014 08:47 AM PST

Science is becoming closer emulating the fiction of a popular Avatar movie, by deciphering plants' electrical signals to devise new holistic environmental

Artificial cell membranes marketed that can speed up drug discovery

Posted: 20 Jan 2014 08:47 AM PST

Scientists in Singapore will market novel plastic cell membranes to be used as low-cost, easily maintained drug targets that may help shorten the drug discovery process by weeks or months and cut

First infrared satellite monitoring of peak pollution episodes in China

Posted: 20 Jan 2014 06:55 AM PST

Plumes of several anthropogenic pollutants (especially particulate matter and carbon monoxide) located near ground level over China have for the first time been detected from space. The work was

Restrictive concealed weapons laws can lead to an increase in gun-related murders

Posted: 20 Jan 2014 06:55 AM PST

It may make sense to assume that states in which there are tight laws on weapons would make that state a safer place and one with less gun crime, however, recent research argues that the very

Smoking late in pregnancy reduces baby's birth weight

Posted: 20 Jan 2014 06:55 AM PST

A doctoral dissertation finds that every cigarette a mother smokes a day during the third quarter of pregnancy reduces the baby's birth weight in 20

Novel nanotherapy breakthrough may help reduce recurrent heart attacks, stroke

Posted: 20 Jan 2014 06:55 AM PST

A new report shows that new statin nanotherapy can target high-risk inflammation inside heart arteries that causes heart attacks or

Milky Way may have formed 'inside-out:' Gaia provides new insight into galactic evolution

Posted: 20 Jan 2014 06:06 AM PST

Research on first data release from Gaia-ESO project suggests the Milky Way formed by expanding out from the center, and reveals new insights into the way our Galaxy was

Ingredients in chocolate, tea, berries could guard against diabetes

Posted: 20 Jan 2014 06:06 AM PST

Eating high levels of flavonoids including anthocyanins and other compounds (found in berries, tea, and chocolate) could offer protection from type 2 diabetes -- according to research. The study of

Island channel could power about half of Scotland, studies show

Posted: 20 Jan 2014 06:06 AM PST

Renewable tidal energy sufficient to power about half of Scotland could be harnessed from a single stretch of water off the north coast of the Scotland, engineers

Exposure to pesticides results in smaller worker bees

Posted: 20 Jan 2014 06:06 AM PST

Exposure to a widely used pesticide causes worker bumblebees to grow less and then hatch out at a smaller size, according to a new

Keeping whales safe in sound

Posted: 20 Jan 2014 06:06 AM PST

Global efforts are intensifying to safeguard whales and other marine species from the harms of powerful noise used in seismic seafloor surveys by the oil and gas industry and others. The impetus is

NHL teams pay more than $650 million to injured players over 3 years

Posted: 20 Jan 2014 06:06 AM PST

Most successful businesses would not accept spending $218 million on lost time, but that's the amount NHL owners pay out every year to players who miss games due to injury, according to new

Secondhand smoke exposure increases odds of hospital asthma readmission for children

Posted: 20 Jan 2014 06:06 AM PST

A new study shows that exposure to secondhand smoke at home or in the car dramatically increases the odds of children being readmitted to the hospital within a year of being admitted for

Frog fathers don't mind dropping off their tadpoles in cannibal-infested pools

Posted: 20 Jan 2014 06:04 AM PST

Given a choice, male dyeing poison frogs snub empty pools in favor of ones in which their tiny tadpoles have to grow in the company of larger, carnivorous ones of the same species. The frog fathers

Ultra-thin tool heating for injection molding

Posted: 20 Jan 2014 06:04 AM PST

In future, thin-film heating will allow plastic parts to be produced with greatly improved surface quality. Researchers have also found a way to make the whole process more energy

Hydrocephalus: sensors monitor cerebral pressure

Posted: 20 Jan 2014 06:04 AM PST

If the pressure in a patient's brain is too high, physicians implant a system in the head that regulates the pressure. A sensor can now measure and individually adjust brain pressure. The sensor

Modified proteins as vaccines against peach allergy

Posted: 20 Jan 2014 06:04 AM PST

Research has been conducted on the peach allergy, the most common food allergy, and the Pru p 3 protein. As a result of this research work, three hypoallergenic variants of this protein have been

Childhood obesity can only be tackled with broad public health interventions

Posted: 20 Jan 2014 06:04 AM PST

Public health researchers have found single dietary interventions are not effective at increasing fruit and vegetable consumption among overweight children and will not halt the global epidemic in

New study raises hope to successfully fight chytrid amphibian pathogen

Posted: 20 Jan 2014 06:04 AM PST

An international team of researchers has made important progress in understanding the distribution of the deadly amphibian chytrid pathogen. In some regions, the deadly impact of the pathogen appears

Quality control of mitochondria as defense against disease

Posted: 20 Jan 2014 06:04 AM PST

Scientists have discovered that two genes linked to hereditary Parkinson's disease are involved in the early-stage quality control of mitochondria. The protective mechanism removes damaged proteins

Climate change: Promising future for cotton in Cameroon?

Posted: 20 Jan 2014 06:04 AM PST

While climate change threatens most crops in Africa, its impact could be less on cotton cultivation in Cameroon. A new study shows that the expected climate change over the coming decades should not

Forget about forgetting: Elderly know more, use it better

Posted: 20 Jan 2014 06:04 AM PST

What happens to our cognitive abilities as we age? If your think our brains go into a steady decline, research reported this week may make you think again. The work takes a critical look at the

Melatonin may lower prostate cancer risk

Posted: 20 Jan 2014 05:50 AM PST

Higher levels of melatonin, a hormone involved in the sleep-wake cycle, may suggest decreased risk for developing advanced prostate cancer, according to results of new

Possible explanation for link between exercise, improved prostate cancer outcomes

Posted: 20 Jan 2014 05:50 AM PST

Men who walked at a fast pace prior to a prostate cancer diagnosis had more regularly shaped blood vessels in their prostate tumors compared with men who walked slowly, providing a potential

Peeking into Schrödinger's Box

Posted: 20 Jan 2014 05:50 AM PST

Until recently, measuring a 27-dimensional quantum state would have been a time-consuming, multistage process using a technique called quantum tomography, which is similar to creating a 3D image from

Researchers discover how heart arrhythmia occurs

Posted: 19 Jan 2014 11:24 AM PST

Researchers have discovered the fundamental biology of calcium waves in relation to heart arrhythmias. The finding outlines the discovery of this fundamental physiological process that researchers

Double-layer capping solves two problems

Posted: 18 Jan 2014 09:24 AM PST

Using a newly developed technique, protective casings for microscale devices can be built quickly and cheaply without damaging

Lab-on-a-chip realizes potential

Posted: 18 Jan 2014 09:24 AM PST

A portable instrument that replaces a full-size laboratory provides accurate multi-element analysis in less than a

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