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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

European satellite could discover thousands of planets in Earth's galaxy

06/11/2014 | CIENCIA ON LINE
The recently launched European satellite Gaia could discover tens of thousands of planets during its five-year mission. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/9...

Antibiotics: On-the-spot tests reduce unnecessary prescriptions

06/11/2014 | CIENCIA ON LINE
Fast, on-the-spot tests for bacterial infections may help to reduce excessive antibiotic use. A systematic review found that when doctors tested for the presence of bacterial infections they prescribed fewer antibiotics. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/-...

CT lung screening appears cost-effective

06/11/2014 | CIENCIA ON LINE
In 2010 the National Lung Screening Trial showed that screening for cancer with low-dose CT scans could reduce mortality by 20 percent compared to using chest X-rays. But is it cost-effective? A new study's calculations reveal that it is, but that depends on assuming many answers to questions that...

Further evidence of potential for new anti-cancer drug

06/11/2014 | CIENCIA ON LINE
Scientists have shown that a new drug inhibits the growth of tumors in the lab and that its effectiveness is improved by combining it with radiotherapy – suggesting a new approach that could be used in the clinic, they say. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/t...

Scientists uncover potential drug to tackle 'undruggable' fault in third of cancers

05/11/2014 | CIENCIA ON LINE
Scientists have found a possible way to halt one of the most common faults in many types of cancer, according to new research. They have uncovered a new strategy and new potential drug to target an important signalling protein in cells called Ras, which is faulty in a third of cancers. Fuente :...

Gene 'switches' could predict when breast cancers will spread to the brain

05/11/2014 | CIENCIA ON LINE
Scientists have found a pattern of genetic ‘switches’ – chemical marks that turn genes on or off - that are linked to breast cancer’s spread to the brain, according to new research.  Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/6...

High-speed 'label-free' imaging could reveal dangerous plaques

05/11/2014 | CIENCIA ON LINE
Researchers are close to commercializing a new type of medical imaging technology that could diagnose cardiovascular disease by measuring ultrasound signals from molecules exposed to a fast-pulsing laser. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/i...

Novel nanofiber-based technology could help prevent HIV/AIDS transmission

05/11/2014 | CIENCIA ON LINE
Scientists have developed a novel topical microbicide loaded with hyaluronic acid nanofibers that could potentially prevent transmission of HIV through the vaginal mucosa. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/D...

This just in: Political correctness pumps up productivity on the job

05/11/2014 | CIENCIA ON LINE
Political correctness, loathed by some as censorship awash in leftist philosophy, actually boosts the creativity of mixed-sex work teams. These results highlight a paradoxical consequence: A term that has been used to undermine expectations to censor offensive language as a threat to free speech...

Compared with apes, people's gut bacteria lack diversity, study finds

04/11/2014 | CIENCIA ON LINE
The microbes living in people's guts are much less diverse than those in humans' closest relatives, the African apes, an apparently long evolutionary trend that appears to be speeding up in more modern societies, with possible implications for human health, according to a new study. Fuente :...

Astronomers solve puzzle about bizarre object at center of our galaxy: Enormous black hole drove two binary stars to merge

04/11/2014 | CIENCIA ON LINE
The mystery about a thin, bizarre object in the center of the Milky Way that some astronomers believe to be a hydrogen gas cloud headed toward our galaxy's enormous black hole has been solved by astronomers. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/L...

Why anesthetics cause prolonged memory loss

04/11/2014 | CIENCIA ON LINE
Researchers have shown why anesthetics can cause long-term memory loss, a discovery that can have serious implications for post-operative patients. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/7...

Increased prevalence in autism diagnoses linked to reporting in Denmark

04/11/2014 | CIENCIA ON LINE
About 60 percent of the increase in the observed prevalence of autism spectrum disorders in Danish children appears to be largely due to changes in reporting practices, according to a study. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/J...

Higher risk of bleeding in atrial fibrillation patients taking blood thinner dabigatran

04/11/2014 | CIENCIA ON LINE
Patients with atrial fibrillation who take the blood thinner dabigatran are at greater risk for major bleeding and gastrointestinal bleeding than those who take warfarin, according to a new study. The findings, based on Medicare claims data, indicate greater caution is needed when prescribing...

New technique efficiently turns antibodies into highly tuned 'nanobodies'

02/11/2014 | CIENCIA ON LINE
A new system promises to make nanobodies -- antibodies' tiny cousins -- dramatically more accessible for all kinds of research. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/h...

Ultracold disappearing act: 'Matter waves' move through one another but never share space

02/11/2014 | CIENCIA ON LINE
How can two clumps of matter pass through each other without sharing space? Physicists have documented a strange disappearing act by colliding Bose Einstein condensates that appear to keep their distance even as they pass through one another. Fuente :...

Mutant models to identify cancer mutations

02/11/2014 | CIENCIA ON LINE
Using mathematical toolkits traditionally considered the property of statistical physics and artificial intelligence, researchers have developed a way to identify important cancer mutations. This approach can model the effects that cancer mutations have on the intricate patterns of communication...

Step toward quantum computers: Two photons strongly coupled by glass fiber

02/11/2014 | CIENCIA ON LINE
Usually, light waves do not interact with each other. Coupling of photons with other photons is only possible with the help of special materials and very intense light. Scientists have now created the strongest possible coupling of only two photons -- an important achievement for quantum optics....

'Wimpy' antibody protects against kidney disease in mice

02/11/2014 | CIENCIA ON LINE
An antibody abundant in mice and previously thought to offer poor assistance in fighting against infection may actually play a key role in keeping immune responses in check and preventing more serious self-inflicted forms of kidney disease, according to research. Fuente :...

Fun and games make for better learners

31/10/2014 | CIENCIA ON LINE
Four minutes of physical activity can improve behavior in the classroom for primary school students, according to new research. A brief, high-intensity interval exercise, or a 'FUNterval,' for Grade 2 and Grade 4 students reduced off-task behaviors like fidgeting or inattentiveness in the...

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