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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

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...

Gaps in mental health infrastructure for youth identified in many US communities

12/02/2013 | CIENCIA ON LINE
Mental health facilities that provide outpatient specialty services for youth are a critical element of the mental health care infrastructure, especially for youth who are uninsured or publically insured. Fuente : http://www.eurekalert.org/pub_releases/2013-02/ehs...

In some dystonia cases, deep brain therapy benefits may linger after device turned off

12/02/2013 | CIENCIA ON LINE
Two patients freed from severe to disabling effects of dystonia through deep brain stimulation therapy continued to have symptom relief for months after their devices accidentally were fully or partly turned off, according to a report published online Feb. 11 in the journal Movement Disorders....

Cinco años de extraordinaria ciencia con Columbus

12/02/2013 | CIENCIA ON LINE
Desde que el modulo del laboratorio europeo Columbus atracara en la Estación Espacial Internacional hace cinco años, ha ofrecido a los investigadores de todo el mundo la oportunidad de hacer ciencia más allá de los efectos de la gravedad. Fuente :...

Virtual vehicle vibrations: Predicting role of posture in traffic collision injuries

11/02/2013 | CIENCIA ON LINE
A researcher has designed a computer program that allows engineers to accurately predict the role posture plays in transferring the stress of vehicle motion to bone and muscle in the head and neck. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/v...

Combining synthetic, natural toxins could disarm cancer, drug-resistant bacteria

11/02/2013 | CIENCIA ON LINE
Scientists are suggesting a new "combinatorial approach" to fight both drug-resistant bacteria and cancer. Scientists propose using drug cocktails that contain both synthetic drug molecules and their nature-made counterparts. The synthetic drugs have a corkscrew-shaped "counterclockwise" twist...

Vascular brain injury greater risk factor than amyloid plaques in cognitive aging

11/02/2013 | CIENCIA ON LINE
Vascular brain injury from conditions such as high blood pressure and stroke are greater risk factors for cognitive impairment among non-demented older people than is the deposition of the amyloid plaques in the brain that long have been implicated in conditions such as Alzheimer's disease, a new...

Isotope patterns in ancient volcanic sulfur tell which global cooling episodes were caused by volcanic eruptions

11/02/2013 | CIENCIA ON LINE
Volcanoes are well known for cooling the climate. But just how much and when has been a bone of contention among historians, glaciologists and archeologists. Now a team of atmosphere chemists has come up with a way to say for sure which historic episodes of global cooling were caused by volcanic...

Stem cell discovery gives insight into motor neuron disease

11/02/2013 | CIENCIA ON LINE
A discovery using stem cells from a patient with motor neuron disease could help research into treatments for the condition. The study used a patient's skin cells to create motor neurons - nerve cells that control muscle activity - and the cells that support them called astrocytes. Fuente :...

New strategy for interfering with potent cancer-causing gene

11/02/2013 | CIENCIA ON LINE
About five-ten percent of cases of acute myeloid leukemia, an aggressive blood cancer that is currently incurable in 70 percent of patients, are characterized by the rearrangement of a gene called MLL (Mixed-Lineage Leukemia). Medical researchers have identified a protein, RNF20, involved in DNA...

Deep genomic analysis identifies a micro RNA opponent for ovarian cancer

11/02/2013 | CIENCIA ON LINE
Researchers employed an extensive analysis of genomic information to identify a new, high-risk cohort of ovarian cancer patients, characterize their tumors, find a potential treatment and test it in mouse models of the disease. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/k...

Unchecked antibiotic use in animals may affect global human health

11/02/2013 | CIENCIA ON LINE
The increasing production and use of antibiotics, about half of which is used in animal production, is mirrored by the growing number of antibiotic resistance genes, or ARGs, effectively reducing antibiotics' ability to fend off diseases -- in animals and humans. Fuente :...

Sunlight stimulates release of climate-warming gas from melting Arctic permafrost

11/02/2013 | CIENCIA ON LINE
Ancient carbon trapped in Arctic permafrost is extremely sensitive to sunlight and, if exposed to the surface when long-frozen soils melt and collapse, can release climate-warming carbon dioxide gas into the atmosphere much faster than previously thought. Fuente :...

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