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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 (9027) : technology

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...

Is fleet diversity key to sustainable fisheries?

31/10/2014 | CIENCIA ON LINE
Concern about fisheries is widespread around the world. Over the past several decades, a robust discussion has taken place concerning how to manage fisheries better to benefit ecosystems and humans. Much of the discussion has focused on preserving biological diversity, a critical component of...

Cell division, minus the cells

31/10/2014 | CIENCIA ON LINE
Researchers have reconstituted cell division -- complete with signals that direct molecular traffic -- without the cell. Combining frog-egg extracts with lipid membranes that mimic the membrane of the cell, they built a cell-free system that recapitulates how the cleavage furrow is assembled....

Decoding the emergence of metastatic cancer stem cells

31/10/2014 | CIENCIA ON LINE
In the first study of its kind, researchers have mapped how information flows through the genetic circuits that cause cancer cells to become metastatic. The research reveals a common pattern in the decision-making that allows cancer cells to both migrate and form new tumors. Fuente :...

Preventing cardiovascular disease in old aortas

31/10/2014 | CIENCIA ON LINE
Researchers look for the root cause of age-related aortic stiffness — an early sign cardiovascular disease — and uncover a potential therapeutic target for reducing or preventing its development. The underlying cause of aortic stiffening is unclear. While much of the previous research pointed to...

Himalayan Viagra fuels caterpillar fungus gold rush

30/10/2014 | CIENCIA ON LINE
Overwhelmed by speculators trying to cash-in on a prized medicinal fungus known as Himalayan Viagra, two isolated Tibetan communities have managed to do at the local level what world leaders often fail to do on a global scale -- implement a successful system for the sustainable harvest of a...

New optimal screening threshold for gestational diabetes in twin pregnancies: Ideal 1-hour 50-g glucose challenge test cutoff ≥135 mg/dl

30/10/2014 | CIENCIA ON LINE
A common complication, gestational diabetes affects approximately 6-7% of pregnant women. Currently, screening is done in two steps to help identify patients most at risk; however, the suggested levels for additional testing were based on singleton pregnancy data. Now investigators have analyzed...

They know the drill: Leading the league in boring through ice sheets

30/10/2014 | CIENCIA ON LINE
Hollow coring drills are used to extract ice cores that can analyze the past atmosphere. Scientists have now documented carbon dioxide in the atmosphere between 23,000 and 9,000 years ago, based on data from an 11,000-foot hole in Antarctica. Fuente :...

Take a walk in the sun to ease time change woes, sleep expert says

30/10/2014 | CIENCIA ON LINE
Daylight saving time ends at 2 a.m. on Sunday, Nov. 2. As clocks turn back one hour, we gain an hour of sleep but often still feel groggy and sluggish. A sleep expert says this change in sleep schedule is exacerbated by our tendency to alter our sleep patterns on the weekends anyway. Fuente :...

Lord of the microrings

30/10/2014 | CIENCIA ON LINE
Researchers report a significant breakthrough in laser technology with the development of a unique microring laser cavity that can produce single-mode lasing on demand. This advance holds ramifications for a wide range of optoelectronic applications including metrology and interferometry, data...

NASA’s Wallops Flight Facility completes initial assessment after Orbital launch mishap

30/10/2014 | CIENCIA ON LINE
The Wallops Incident Response Team completed today an initial assessment of Wallops Island, Virginia, following the catastrophic failure of Orbital Science Corp.'s Antares rocket shortly after liftoff at 6:22 p.m. EDT Tuesday, Oct. 28, from Pad 0A of the Mid-Atlantic Regional Spaceport at NASA's...

First detailed picture of cancer-related cell enzyme in action on chromosome unit

30/10/2014 | CIENCIA ON LINE
New insight into the function of an enzyme related to the BRCA1 breast-cancer protein has been released by researchers. The study produced the first detailed working image of an enzyme in a group that is associated with many types of cancer. The researchers obtained the first crystal structure of...

Same votes, different voting districts would alter election results in NC: Math study bolsters call for non-partisan redistricting reform

30/10/2014 | CIENCIA ON LINE
Researchers have developed a mathematical model that shows how changes in congressional voting districts affect election outcomes. Focusing on the last election, they show the outcome of the 2012 US House of Representatives elections in North Carolina would have been very different had the...

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