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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

Reproductive workings of a harvester ant dynasty

12/02/2013 | CIENCIA ON LINE
For the first time, scientists have measured how successfully a queen ant establishes new colonies. The work revealed that the queen was still reproducing several decades after mating. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/C...

Climate change affects the flight period of butterflies in Massachusetts

12/02/2013 | CIENCIA ON LINE
Biologists have found that butterflies show signs of being affected by climate change in a way similar to plants and bees, but not birds, in the Northeast United States. The researchers focused on Massachusetts butterfly flight periods, comparing current flight periods with patterns going back...

Picky eater fish clean up seaweeds from coral reefs

12/02/2013 | CIENCIA ON LINE
Using underwater video cameras to record fish feeding on South Pacific coral reefs, scientists have found that herbivorous fish can be picky eaters – a trait that could spell trouble for endangered reef systems. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/p...

NASA satellites find freshwater losses in Middle East

12/02/2013 | CIENCIA ON LINE
A new study using data from a pair of gravity-measuring NASA satellites finds that large parts of the arid Middle East region lost freshwater reserves rapidly during the past decade. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/M...

Marketing technique: Activating gender stereotypes just to knock 'em down

12/02/2013 | CIENCIA ON LINE
A new study looks at the issue of product perception of consumers through the lens of gender stereotypes. The researchers conclude that while traditional gender stereotypes can still have a significant influence on consumer behavior in the 21st century, there are ways that firms can activate...

Problem-solving training helps mothers cope with child's cancer diagnosis

12/02/2013 | CIENCIA ON LINE
A multi-site clinical trial of BRIGHT Ideas problem-solving training shows durable benefits in mothers of children diagnosed with cancer. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/T...

Molecular master switch for pancreatic cancer identified, potential predictor of treatment outcome

12/02/2013 | CIENCIA ON LINE
A recently described master regulator protein may explain the development of aberrant cell growth in the pancreas spurred by inflammation. The team profiled gene expression of mouse pancreatic ductal and duct-like cells from different states -- embryonic development, acute pancreatitis and K-ras...

Marketing technique: Activating gender stereotypes just to knock 'em down

12/02/2013 | CIENCIA ON LINE
A new study by USC Marshall Professor Valerie Folkes and Ohio State University Professor Shashi Matta looks at the issue of product perception of consumers through the lens of gender stereotypes. The researchers conclude that while traditional gender stereotypes can still have a significant...

Southwest regional warming likely cause of pinyon pine cone decline, says CU study

12/02/2013 | CIENCIA ON LINE
Creeping climate change in the Southwest appears to be having a negative effect on pinyon pine reproduction, a finding with implications for wildlife species sharing the same woodland ecosystems, says a University of Colorado Boulder-led study. Fuente :...

Building a biochemistry lab on a chip

12/02/2013 | CIENCIA ON LINE
Miniaturized laboratory-on-chip systems promise rapid, sensitive, and multiplexed detection of biological samples for medical diagnostics, drug discovery, and high-throughput screening. Using micro-fabrication techniques and incorporating a unique design of transistor-based heating, researchers...

Study shows that problem-solving training helps mothers cope with child's cancer diagnosis

12/02/2013 | CIENCIA ON LINE
A multi-site clinical trial of BRIGHT Ideas problem-solving training shows durable benefits in mothers of children diagnosed with cancer. Study published in Journal of Clinical Oncology. Materials available for download and use! Fuente : http://www.eurekalert.org/pub_releases/2013-02/uoc...

Molecular master switch for pancreatic cancer identified, potential predictor of treatment outcome

12/02/2013 | CIENCIA ON LINE
A recently described master regulator protein may explain the development of aberrant cell growth in the pancreas spurred by inflammation. The Penn team profiled gene expression of mouse pancreatic ductal and duct-like cells from different states -- embryonic development, acute pancreatitis and...

Cities can reduce greenhouse gas emissions by 70 percent, says U of T researcher

12/02/2013 | CIENCIA ON LINE
Cities can significantly reduce greenhouse gas emissions by implementing aggressive but practical policy changes, says a new study by University of Toronto Civil Engineering Professor Chris Kennedy and World Bank climate change specialist Lorraine Sugar, one of Kennedy's former students. Fuente :...

Stanford scientist uncovers the reproductive workings of a harvester ant dynasty

12/02/2013 | CIENCIA ON LINE
For the first time, scientists have measured how successfully a queen ant establishes new colonies. The work by Stanford researchers revealed that the queen was still reproducing several decades after mating. Fuente : http://www.eurekalert.org/pub_releases/2013-02/su-...

Major clinical trial finds no link between genetic risk factors and 2 top wet AMD treatments

12/02/2013 | CIENCIA ON LINE
New findings from a landmark clinical trial show that although certain gene variants may predict whether a person will develop age-related macular degeneration (AMD), these genes do not predict patients' responses to Lucentis™ and Avastin™, two medications widely used to treat "wet" AMD. This...

Explosive breakthrough in research on molecular recognition

12/02/2013 | CIENCIA ON LINE
Ever wonder how sometimes people still get through security with explosives on their person? Research conducted at the University of Alberta Faculty of Engineering has revealed a new way to better detect molecules associated with explosive mixtures. Fuente :...

Lower autism risk with folic acid supplements in pregnancy

12/02/2013 | CIENCIA ON LINE
Women who took folic acid supplements in early pregnancy almost halved the risk of having a child with autism. Beginning to take folic acid supplements later in pregnancy did not reduce the risk. This is shown in new findings from the ABC Study and Norwegian Mother and Child Cohort Study...

NASA sees Cyclone Gino wind up to wind down later

12/02/2013 | CIENCIA ON LINE
NASA's Aqua satellite passed over Cyclone Gino as the storm continues to wind up in the southern Indian Ocean, consolidating and strengthening. Infrared data shows the storm has strengthened but it is headed for cooler waters which will weaken it in coming days. Fuente :...

NASA provides satellite views of nor'easter lifespan

12/02/2013 | CIENCIA ON LINE
NASA and NOAA satellites have provided animations and images of the coupling of two low pressure areas that created the now historic winter-time nor'easter that brought more than two feet of snow to portions of the New England states on Feb. 8 and 9, 2013. NASA released an animation of NOAA...

NASA satellites find freshwater losses in Middle East

12/02/2013 | CIENCIA ON LINE
A new study using data from a pair of gravity-measuring NASA satellites finds that large parts of the arid Middle East region lost freshwater reserves rapidly during the past decade. Fuente : http://www.eurekalert.org/pub_releases/2013-02/nsf...

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