El jaguar afronta su cuenta atrás

Ago 15, 2011
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Los expertos llaman a proteger las rutas migratorias de Norteamérica

Aunque está prohibida la venta de su piel, sigue la caza furtiva

Dada esta reducción del hábitat, la investigadora venezolana Emiliana Isasi-Catalá apuesta por los corredores ecológicos que conectan entre sí las áreas protegidas, eludiendo de este modo posibles conflictos con ganaderos. Esta se ha convertido en una vía crítica para la supervivencia del felino pues, como apunta Rabinowitz, mientras que su hábitat se ha reducido un 50% desde los años noventa, los corredores tan solo lo han hecho un 16%.

“La medicina es cada día más impersonal”

Ago 15, 2011
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Aaron Ciechanover (Haifa, Israel, 1947) estudió medicina por ser una profesión con futuro y le fascina la posibilidad de poder curar enfermedades. La medicina era demasiado descriptiva y decidió probar con la investigación básica, por curiosidad. En una época en la que la comunidad científica estaba preocupada por descubrir cómo se construían las moléculas de la vida, él, junto a Abraham Hershko, decidió embarcarse en la aventura de descubrir cómo se destruían las proteínas.

Google adquiere Motorola por 8.700 millones de euros

Ago 15, 2011
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El gigante empresarial de internet Google ha dado un paso importante en su particular carrera en el mundo de la tecnología móvil al adquirir por 12.500 millones de dólares (unos 8.700 millones de euros) el fabricante de móviles Motorola Mobility Holding.

Ambas compañías han llegado a un acuerdo por el cual los accionistas de Motorola recibirán 40 dólares por acción en efectivo, un 63% más de la cotización de la empresa al cierre de la Bolsa de Nueva York el viernes pasado.

Con esta compra, Google se convierte por fin en un fabricante de móviles en toda regla, lo que le permitirá competir directamente con Apple y su gama de móviles iPhone. Hasta ahora, la empresa contaba tan sólo con el sistema operativo Android, que usaban móviles de Motorola, Samsung o HTC. Sin embargo, el avance de este SO se veía lastrado debido a la falta de patentes por parte de Google.

Hace unos meses, el gigante de internet arremetió contra Microsoft , Apple y Oracle por haberse unido para adquirir miles de patentes tras la quiebra de la compañía Nortel. Google acusó entonces a estas empresas de obstaculizar Android ya que aplicaban un “impuesto” en los teléfonos móviles con su sistema operativo.

Samsung recurre la prohibición de su tableta

Ago 15, 2011
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La compañía coreana Samsung Electronics acudirá a un tribunal alemán el 25 de agosto para tratar de revertir la decisión de prohibir la venta de sus tabletas Galaxy de 10.1 pulgadas en la mayor parte de la Unión Europea.

La pasada semana, un tribunal de Düsseldorf decidió paralizar temporalmente la venta en la UE de las tabletas, tras un requerimiento judicial presentado por Apple, que aseguró que la línea Galaxy de teléfonos móviles y tabletas copiaba “servilmente” sus iPad e iPhone. En una batalla mundial por la propiedad intelectual, Apple además ha demandado a Samsung en Estados Unidos, Australia y en otros países.

El único país europeo no cubierto actualmente por la demanda es Holanda, pero Apple también presentó un requerimiento en un tribunal de La Haya por tres patentes, derechos de autor e infracciones de diseños, para detener la venta de algunos productos de Samsung en este país y bloquear su distribución en la Unión Europea a través de Holanda. En todo caso, la tableta Galaxy Tab 10.1 se sigue vendiendo en gran parte de los distribuidores de toda Europa, ya que estos consideran que la demanda no cubre a terceros. Samsung, además, comercializa otros dos modelos, de 7 y 8,9 pulgadas, más pequeños que el iPad.

Danger zone

A new documentary with Prince Harry follows four wounded servicemen on a trek to the North Pole. But why do so many disabled people embark on adventures that most "able" people wouldn't even think of doing?

Hilton-Barber believes that conquering these incredible feats of human endurance has changed his perspective on what it means to have a disability.

"I'm too lazy to do something like that," says Martinez, who was asked to take part in the BBC adventure programme, Beyond Boundaries, but declined.

So is taking on adventures a substitute for lack of success in life against ordinary measurements?

But Lisicki has her own theories on why the media relish these stories.

"The press is always happy to focus on the old tragic but brave stereotype. Earlier this year, 5,000 disabled people marched against government cuts. This got very little media coverage, because people find looking at a collective of disabled people uncomfortable.

"It's much easier for them to focus on one individual and say 'aren't they marvellous?'"

But whether it's for the love of adventure, to prove that disability is no barrier or, as Jaco from Harry's Arctic Heroes says, "to bring back the feeling of being able to do something again", the disabled adventurer phenomenon is bound to continue.

© 2011 BBC News (www.bbc.co.uk)

Mosquito menace

Complaints of mosquito bites are on the rise in the UK. So should Britons brace themselves for a future mosquito menace?

The Health Protection Agency has organised the Mosquito Recording Scheme to look into where and how mosquitoes live and breed.

While the species does not carry malaria, it does transmit West Nile virus, Yellow fever and dengue.

"It is possible that Aedes albopictus could make its way to the UK," says Dr James Logan, medical entomologist at the London School of Hygiene & Tropical Medicine.

"Because they lay their drought-resistant eggs in transportable materials, like used tyres, there is a possibility that they can be transported to a country where they are not normally found.

"Some studies suggest that they could survive the UK winter, however, to date this species has not been found in the UK and the HPA are keeping a watchful eye on it."

Bonsall agrees and adds that predictive models show how malaria-carrying species could even make their way to areas such as the North Kent marshes, Essex, Norfolk and Suffolk.

Mosquitoes are becoming immune to the insecticides used to treat them – via spray or bed nets, according to a recent study from Senegal. Between 2007 and 2010, insects with a resistance to a popular type of pesticide rose from 8% to 48%.

"This could be a big problem for future control," says Dr Hilary Ranson, head of the vector group at the Liverpool School of Tropical Medicine.

But according to Dr Logan, the health infrastructure and access to drugs in the UK means malaria is unlikely to take hold and cause major problems.

Unlike much of the world, the rise of the mosquito will be a nuisance in the UK rather than a serious threat.

© 2011 BBC News (www.bbc.co.uk)

Bringing up baby

Dr Benjamin Spock's Common Sense Book of Baby and Child Care is one of the best-selling books of all time, with overall sales of some 50 million. Sixty-five years since its first publication, what is Dr Spock's contribution to child-rearing today?

Baby and Child Care challenged the child-rearing orthodoxy of the early 20th Century – that babies should be fed according to a tight schedule, and that showing them too much affection made them weak and unprepared for the world.

"The subtitle of the book was the Common Sense Book of Baby and Child Care. So if you had half a grain of sense you knew that the advice would be compatible with your own best instincts."

Lynn Bloom remembers Benjamin Spock as someone who loved children, who would get down on the floor to play with them – a big man, more than six feet tall, with a booming laugh. And a very humane man.

"I never heard him in private or in public utter any comment that was in any way denigrating, demeaning, that pulled rank, that indicated that he thought he was grandiose. I don't think he felt that way."

Benjamin Spock was born in 1903 – the eldest son in a family of five children, who would often look after his younger siblings.

His mother's own style of parenting was fairly harsh.

"One of her punishments was to put children in a dark closet and to simply leave them there until they learnt whatever lesson she was trying to teach them.

"Two of Spock's sisters each remember that she put them in a closet and forgot about them, and went off to New York for the day, came back and they were out of their minds practically, with apprehension.

"It sounds severe. It was severe. But it wasn't unusual for that time in which Spock was raised."

Jail sentence

Benjamin Spock went to Yale University – where he joined the rowing crew that won a gold medal at the Paris Olympics in 1924 – and studied medicine specialising in paediatrics.

In later life, he developed another passion – politics.

In 1960, he made an advertisement with Jacqueline Kennedy as part of John F Kennedy's presidential election campaign.

He joined the peace movement and by the late 60s was a leading activist in the anti-Vietnam war movement.

Explaining why he became more political, he said: "It isn't enough to bring up children happy and secure, you need to provide a decent world for them. And this is why I have expanded my horizon."

In 1968, Dr Spock was given a two-year jail sentence, which he never served, for aiding resistance to the draft.

He also received death threats and his book was attacked by the war's supporters, who blamed his liberal advice to parents for breeding a permissive, self-indulgent generation.

It was a charge Benjamin Spock tackled head-on in a BBC phone-in in 1971.

"I am accused by certain political types like the Vice-President Spiro Agnew, he's been going over all the US saying that the young people are ruined because I gave permissive advice," he said.

"Actually, I think anyone who has read Baby and Child Care understands that I am not a permissivist, that I never talked about instant gratification."

But the damage was done. Dr Spock would never quite shake off that reputation among the conservatives as a corruptor of the young.

Some of his advice was later discredited medically – for example, the idea of putting babies to sleep on their stomachs. He said it reduced the risk of infants choking on their own vomit, but by the 1990s, the practice was being linked to sudden infant death syndrome.

Sixty-five years on, however, Dr Spock's Baby and Child Care is still in print – and it continues to influence generations of parents.

Witness is the BBC World Service's 10-minute history programme. You can download a podcast of the programme or browse the archive.

© 2011 BBC News (www.bbc.co.uk)

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