Conéctese Regístrate


24/07/2014

Tendencias 21

25 Aniversario




CIENCIA ON LINE

Un tugurio dentro de otro se desarrolla en Kenia - 23/07/2014 / Leido 255 veces/ Comentarios 0

En el límite este del asentamiento informal de Kibera, en la capital de Kenia, un grupo de niños y niñas se reúne portando grandes bidones amarillos para recoger agua de un grifo en mal estado. Las altas torres grises y beiges de Soweto Oriental se elevan sobre ellos. Una muchacha coloca el...

México último y EEUU entre los peores en eficiencia energética - 22/07/2014 / Leido 389 veces/ Comentarios 0

México ocupa el último lugar en una nueva clasificación sobre la eficiencia energética de 16 de las mayores economías del mundo, en que Alemania logró el primer puesto y Estados Unidos aparece en el número 13. El Consejo Estadounidense por una Economía de Energía Eficiente  (ACEEE, en inglés), una...

The 92 percent clean plate club: You're not alone in eating everything on your plate - 22/07/2014 / Leido 1 veces/ Comentarios 0

If you're a member of the Clean Plate Club -- you eat pretty much everything you put on your plate -- you're not alone! A new study shows that the average adult eats 92 percent of whatever he or she puts on his or her plate. 'If you put it on your plate, it's going into your stomach,' says the author of the forthcoming book on...

Alaska frogs reach record lows in extreme temperature survival - 22/07/2014 / Leido 1 veces/ Comentarios 0

"Alaska wood frogs spend more time freezing and thawing outside than a steak does in your freezer, and the frog comes back to life in the spring in better shape than the steak," said the lead author on a recent paper demonstrating that freeze tolerance in Alaska wood frogs is more extreme than previously thought. Fuente :...

Dopamine transporter: Stampede supercomputer used to study common link between addiction, neurological disease - 22/07/2014 / Leido 4 veces/ Comentarios 0

The XSEDE-allocated Stampede supercomputer has been used to study the dopamine transporter. Stampede is ranked seventh on the Top 500 list of supercomputers. Its research links altered dopamine signaling and dopamine transporter function to neurological and psychiatric diseases including early-onset Parkinsonism, ADHD, and...

Presence of uterine cancers at time of hysterectomy studied using morcellation - 22/07/2014 / Leido 1 veces/ Comentarios 0

Among women undergoing a minimally invasive hysterectomy using electric power morcellation, uterine cancers were present in 27 per 10,000 women at the time of the procedure, according to a study. There has been concern that this procedure, in which the uterus is fragmented into smaller pieces, may result in the spread of...

Lacking trust in one's doctor affects health of emotionally vulnerable cancer patients - 22/07/2014 / Leido 0 veces/ Comentarios 0

The physical and mental well-being of people with cancer may be affected by how they feel about their relationship with their physician and by differences in attachment styles, finds a new study. Patients who feel anxious and uneasy with their doctor may be impacted the most. "Anxiously attached patients may experience and...

Should Men at Risk for Cardiovascular Disease Receive Earlier, More Aggressive Cholesterol-Lowering Treatment? - 22/07/2014 / Leido 228 veces/ Comentarios 0

New guidelines on cholesterol treatment and cardiovascular risk assessment state that men have at least double the risk of dying from atherosclerotic cardiovascular disease or of having a heart attack or stroke as do women with a similar risk profile (based on age, smoking history, and cholesterol...

Vulnerability of sharks as collateral damage in commercial fishing shown by study - 22/07/2014 / Leido 228 veces/ Comentarios 0

A new study that examined the survival rates of 12 different shark species when captured as unintentional bycatch in commercial longline fishing operations found large differences in survival rates across the 12 species, with bigeye thresher, dusky, and scalloped hammerhead being the most...

Extra exercise helps depressed smokers kick the habit faster - 22/07/2014 / Leido 208 veces/ Comentarios 0

People diagnosed with depression need to step out for a cigarette twice as often as smokers who are not dealing with a mood disorder. And those who have the hardest time shaking off the habit may have more mental health issues than they are actually aware of, research suggests. While nearly one in...
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