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REVISTA ELECTRÓNICA DE CIENCIA, TECNOLOGÍA, SOCIEDAD Y CULTURA. ISSN 2174-6850/ 31 años divulgando conocimiento (desde 1988)
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Tags (9039) : science

'Green revolution' changes breathing of the biosphere: Stronger seasonal oscillations in carbon dioxide linked to intensive agriculture

19/11/2014 | CIENCIA ON LINE
The intense farming practices of the 'Green Revolution' are powerful enough to alter Earth's atmosphere at an ever-increasing rate, boosting the seasonal amplitude in atmospheric carbon dioxide to about 15 percent over the past five decades. That's the key finding of a new atmospheric model, which...

Thin film produces new chemistry in 'nanoreactor'

19/11/2014 | CIENCIA ON LINE
Physicists have discovered a new manganese compound that is produced by tension in the crystal structure of terbium manganese oxide. The technique they used to create this new material could open the way to new nanoscale circuits. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/l...

Business culture in banking industry favors dishonest behavior

19/11/2014 | CIENCIA ON LINE
In the past years, there have often been cases of fraud in the banking industry, which have led to a considerable loss of image for banks. Are bank employees by nature less honest people? Or does the business culture in the banking sector favor dishonest behavior? New findings indicate that the...

Rosetta continues into its full science phase

19/11/2014 | CIENCIA ON LINE
With the Philae lander's mission complete, Rosetta will now continue its own extraordinary exploration, orbiting Comet 67P/Churymov-Gerasimenko during the coming year as the enigmatic body arcs ever closer to our Sun. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/C...

Two sensors in one: Nanoparticles that enable both MRI and fluorescent imaging could monitor cancer, other diseases

18/11/2014 | CIENCIA ON LINE
Chemists have developed new nanoparticles that can simultaneously perform magnetic resonance imaging and fluorescent imaging in animals. Such particles could help scientists to track specific molecules produced in the body, monitor a tumor's environment, or determine whether drugs have successfully...

Musicians show advantages in long-term memory

18/11/2014 | CIENCIA ON LINE
Psychologists have demonstrated a link between musical training and long-term memory advantages. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q...

A bird's-eye view of the protein universe: First global picture of the evolutionary origins of proteins

18/11/2014 | CIENCIA ON LINE
How exactly did proteins first come to be? Do they all share a single common ancestor, or did proteins evolve from many different origins? Forming a global picture of the protein universe is crucial to addressing these and other important questions. Now, new research is providing a first step...

Jurassic climate of large swath of western US was more complex than previously known: Unexpected abrupt change from arid to wet

18/11/2014 | CIENCIA ON LINE
Climate over a large swath of the western US was more complex during the Jurassic than previously known, according to new research. Instead of a gradual transition from dry to wetter, chemical analysis of ancient soils reveals an unexpected abrupt change, say paleontologists. Samples were from the...

Using science to open way to 'blue economy'

18/11/2014 | CIENCIA ON LINE
New science and software make Belize coastal zone management plan better for people and the environment. With historic expansion of coastal and ocean development, ecosystems like coral reefs and mangrove forests are put at unprecedented risk. Yet, planners often lack good information about how...

Graphene/nanotube hybrid benefits flexible solar cells

17/11/2014 | CIENCIA ON LINE
Scientists have created a graphene/nanotube cathode that may make cheap, flexible dye-sensitized solar cells more practical. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/b...

Engineers efficiently 'mix' light at the nanoscale

17/11/2014 | CIENCIA ON LINE
Researchers have engineered a nanowire system that could pave the way for photonic computing, combining two light waves to produce a third with a different frequency and using an optical cavity to amplify the intensity of the output to a usable level. Fuente :...

Hiding in plain sight: Elusive dark matter may be detected with GPS satellites

17/11/2014 | CIENCIA ON LINE
The everyday use of a GPS device might be to find your way around town or even navigate a hiking trail, but for two physicists, the Global Positioning System might be a tool in directly detecting and measuring dark matter, so far an elusive but ubiquitous form of matter responsible for the...

Why lizards have bird breath: Iguanas evolved one-way lungs surprisingly like those of birds

17/11/2014 | CIENCIA ON LINE
Biologists long assumed that one-way air flow was a special adaptation in birds driven by the intense energy demands of flight. But now scientists have shown that bird-like breathing also developed in green iguanas – reptiles not known for high-capacity aerobic fitness. The finding bolsters the...

The 'dirty' side of soap: Triclosan, a common antimicrobial in personal hygiene products, causes liver fibrosis and cancer in mice

17/11/2014 | CIENCIA ON LINE
Triclosan is an antimicrobial commonly found in soaps, shampoos, toothpastes and many other household items. Despite its widespread use, researchers report potentially serious consequences of long-term exposure to the chemical. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/g...

80 million bacteria sealed with a kiss

17/11/2014 | CIENCIA ON LINE
As many as 80 million bacteria are transferred during a 10 second kiss, according to research in journal Microbiome. The study also found that partners who kiss each other at least nine times a day share similar communities of oral bacteria. Fuente :...

Magic tricks created using artificial intelligence for the first time

17/11/2014 | CIENCIA ON LINE
Researchers working on artificial intelligence have taught a computer to create magic tricks. The researchers gave a computer program the outline of how a magic jigsaw puzzle and a mind reading card trick work, as well the results of experiments into how humans understand magic tricks, and the...

'Not just a flavoring: Menthol, Nicotine, Combined Desensitize Airway Receptors

16/11/2014 | CIENCIA ON LINE
Menthol doesn't just act as a flavoring, but has a pharmacologic impact, a new study suggests. The researchers say menthol acts in combination with nicotine to desensitize receptors in lungs' airways that are responsible for nicotine's irritation. Though not a focus of the work, the findings are...

Half of STEMI heart attack patients may have additional clogged arteries

16/11/2014 | CIENCIA ON LINE
A blocked artery causes a deadly kind of heart attack known as STEMI, and a rapid response to clear the blockage saves lives. But in more than half of cases studied, one or both of the patient’s other arteries were also obstructed, raising questions about whether and when additional procedures...

High Mortality Associated with STEMI Heart Attacks That Occur in Hospitalized Patients

16/11/2014 | CIENCIA ON LINE
Researchers have confirmed their surprising earlier finding: Patients who suffer a STEMI heart attack while while in the hospital for something else are more likely to die than patients who have the same type of heart attack outside the hospital. Fuente :...

Rosetta's comet lander: Pioneering Philae completes main mission before hibernation

15/11/2014 | CIENCIA ON LINE
Rosetta's lander has completed its primary science mission after nearly 57 hours on Comet 67P/Churyumov-Gerasimenko. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/p...

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