Tendencias 21. Ciencia, tecnología, sociedad y cultura
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Conmutador molecular controlado por láser para regular a voluntad la coagulación de la sangre - 23/09/2013

La coagulación natural de la sangre está sincronizada con precisión para activarse en el lugar y momento exactos. Realizar una intervención quirúrgica, la curación de una herida, y otros procesos naturales o artificiales, requieren un buen control de este proceso, típicamente a través del uso de......

Heidelberg se convierte en el Lindau de las matemáticas y las ciencias computacionales - 23/09/2013

El Foro Laureate Heidelberg se celebrará cada año en esta ciudad alemana para reunir durante una semana a los más eminentes matemáticos y científicos computacionales, todos ellos distinguidos con algunos de los premios más prestigiosos en ambas disciplinas, con jóvenes promesas de la...

Evalúan el rol de la Antártica en el clima global - 23/09/2013

La Universidad de Santiago de Chile, con el apoyo del Consejo Nacional de Ciencia y Tecnología (Conicyt) y el Instituto Antártico Chileno (Inach), lleva a cabo importantes estudios en el continente blanco. Entre los más ambiciosos destacan aquellos liderados por el investigador del Departamento......

Los satélites Clúster de la ESA danzan más juntos que nunca - 23/09/2013

Los cuatro satélites del cuarteto Clúster de la ESA llevan estudiando la  magnetosfera terrestre en tres dimensiones desde el año 2010. La semana pasa... Fuente : http://www.esa.int/ESA_in_your_country/Spain/Los_s...

- 23/09/2013

Fuente : http://noticiasdelaciencia.com/not/8286//...

Creating Electricity with Caged Atoms - 23/09/2013

At the Vienna University of Technology, a new class of thermoelectric materials has been discovered. Due to a surprising physical effect they can be used to create electricity more efficiently. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Chronic aggressive behaviour in boys: epigenetic sources? - 23/09/2013

Chronic aggressive behaviour exhibited by some boys from disadvantaged families may be due to epigenetic changes during pregnancy and early childhood. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Preparándonos para el cometa ISON - 23/09/2013

Las misiones espaciales de la ESA se están preparando para la llegada de un visitante de hielo al Sistema Solar interior: el cometa ISON, que podría ser visible a simple vista a finales de este año. Fuente : http://www.esa.int/ESA_in_your_country/Spain/Prepa...

Freeze! A protein group affecting lipid dynamics at cell membranes discovered - 23/09/2013

BAR proteins can freeze the movement of certain lipid molecules in membranes almost completely. This finding provides an important step towards understanding the functions and dynamics of cellular membranes. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Why do you want to eat the baby? - 23/09/2013

What woman has not wanted to gobble up a baby placed in her arms, even if the baby is not hers? This reaction, which everyone has noticed or felt, could have biological underpinnings related to maternal functions. For the first time, an international team of researchers has found evidence of this phenomenon in the neural...

¿Existe el estrés bueno? - 23/09/2013

Artículo, de Novedades en Psicología, blog del doctor en psicología Juan Moisés de la Serna, que recomendamos por su interés.   Existen numerosas situaciones a lo largo del día que requieren de nuestra máxima atención, y en las que tenemos que dar la mejor respuesta posible. Ya sea por la... Fuente...

- 23/09/2013

Fuente : http://noticiasdelaciencia.com/not/8285//...

Researchers identify risk-factors for addictive video-game use among adults - 23/09/2013

New research from the University of Missouri indicates escapism, social interaction and rewards fuel problematic video-game use among "very casual" to "hardcore" adult gamers. Understanding individual motives that contribute to unhealthy game play could help counselors identify and treat...

New password in a heartbeat - 23/09/2013

Researchers at Rice University propose a system to prevent cyberattacks on pacemakers, defibrillators and other devices that use wireless communications. Fuente : http://www.eurekalert.org/pub_releases/2013-09/ru-...

Gun retailers strongly support expanded criteria for denying gun purchases, UC Davis survey finds - 23/09/2013

A scientific survey of gun dealers and pawnbrokers in 43 US states has found nearly unanimous support for denying gun purchases based on prior convictions and for serious mental illness with a history of violence or alcohol or drug abuse -- conditions that might have prevented Washington Navy Yard...

Loyola study assesses use of fingerstick blood sample with i-STAT point-of-care device - 23/09/2013

Researchers have determined that fingerstick cardiac troponin I assay testing using the point-of-care i-STAT device is not accurate enough to determine the exact troponin level without the application of a corrective term. Fuente : http://www.eurekalert.org/pub_releases/2013-09/luh...

Spinning CDs to clean sewage water - 23/09/2013

Audio CDs, all the rage in the '90s, seem increasingly obsolete in a world of MP3 files and iPods, leaving many music lovers with the question of what to do with their extensive compact disk collections. While you could turn your old disks into a work of avant-garde art, researchers in Taiwan have...

Brain may rely on computer-like mechanism to make sense of novel situations, says CU-Boulder study - 23/09/2013

Researchers at CU-Boulder have demonstrated that our brains could process novel situations by relying on a method similar to the "pointer" system used by computers. Fuente : http://www.eurekalert.org/pub_releases/2013-09/uoc...

Reassuring findings for mothers who have influenza vaccine while pregnant - 23/09/2013

Researchers from the University of California, San Diego School of Medicine and Boston University, in collaboration with the American Academy of Allergy Asthma and Immunology, have found evidence of the H1N1 influenza vaccine's safety during pregnancy. The national study, which was launched shortly...

Racial and ethnic disparities exist in ER pain management for children with abdominal pain - 23/09/2013

Pediatric researchers have found race- and ethnicity-based disparities in pain management and length of stay among children who came to hospital emergency departments for treatment of abdominal pain. Overall, black, Hispanic and "other" race children were less likely to receive analgesics than...

Researchers publish enormous catalog of more than 300,000 nearby galaxies - 23/09/2013

More than 83,000 volunteer citizen scientists. Over 16 million galaxy classifications. Information on more than 300,000 galaxies. This is what you get when you ask the public for help in learning more about our universe. Fuente : http://www.eurekalert.org/pub_releases/2013-09/uom...

Alzheimer's progression tracked prior to dementia - 23/09/2013

Important progress is reported in Lancet Neurology on the challenge of identifying and tracking preclinical Alzheimer's disease. Scientists show that markers for preclinical disease can help predict the start of dementia. Fuente : http://www.eurekalert.org/pub_releases/2013-09/wus...

U of M research uncovers gene's contribution to asthma susceptibility - 23/09/2013

New research from the University of Minnesota College of Veterinary Medicine has uncovered the role gene ORMDL3 plays in the disease asthma. ORMDL3, a gene recently linked to asthma susceptibility, has now been linked to the body's ability to recruit inflammatory cells during an airway allergic...

Hunger pains - 23/09/2013

Binge-eating disorder, only recently designated as a diagnosis by the American Psychiatric Association in its official diagnostic manual of mental conditions, is associated with lifelong impairments comparable to those of bulimia nervosa, a long-established eating disorder with more dramatic...

Functional disability high among newly diagnosed older breast cancer patients - 23/09/2013

Many older women with newly diagnosed breast cancer have difficulty accomplishing daily tasks, and African-Americans seem to be disproportionately affected. Those are the findings of a new study published early online in CANCER, a peer-reviewed journal of the American Cancer Society. The study's...

Breastfeeding fraught with early challenges for many first-time mothers - 23/09/2013

A new study shows that new moms who report early concerns or problems with breastfeeding are nearly 10 times more likely to abandon breastfeeding within two months. Fuente : http://www.eurekalert.org/pub_releases/2013-09/cch...

Clinical trial strives to provide optimal care during high-risk pregnancies - 23/09/2013

Researchers are conducting a clinical trial to help determine the best timing of delivery in preterm pregnancies complicated by poor fetal growth. Preliminary results from the trial, which are published early online in Ultrasound in Obstetrics & Gynecology, demonstrate better than expected health...

Disaster relief donations track number of people killed, not number of survivors - 23/09/2013

People pay more attention to the number of people killed in a natural disaster than to the number of survivors when deciding how much money to donate to disaster relief efforts, according to new research published in Psychological Science, a journal of the Association for Psychological Science. The...

NASA Curiosity rover detects no methane on Mars - 23/09/2013

Data from NASA's Curiosity rover has revealed the Martian environment lacks methane. This is a surprise to researchers because previous data indicated positive detections. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/i...

Is this my finger? Sensory illusion study provides new insight for body representation brain disorders - 23/09/2013

People can be easily tricked into believing an artificial finger is their own, shows a new study. The results reveal that the brain does not require multiple signals to build a picture body ownership, as this is the first time the illusion has been created using sensory inputs from the muscle...
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 Espacios míticos en los “Parques cerrados” de Juan Campos Reina

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Espacios míticos en los “Parques cerrados” de Juan Campos Reina

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