Monday, February 25, 2013

The PS4's processor and performance: what we know and what we think we know

The PS4's processor and performance what we know and what we think we know

After all the press events, TV cameos and probing interviews, what do we really know about the PS4? The announcement of the next-gen console is a prime example of having an abundance of specs and a lack of knowledge. Although Sony put out a sheet of stats about the console's processor and memory, many of the words it used -- Jaguar cores, compute units, unified memory -- are more ambiguous than they may sound.

Nevertheless, even with all these foggy bits, there are some things -- five, in fact -- that we probably can predict about the PS4's hardware. They're listed after the break in order of decreasing certainty. All the way from confident logic down to... well, not quite flailing around with a butter knife during a power cut, but you get the picture.

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Source: http://www.engadget.com/2013/02/25/playstation-4-processor/

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Tuesday, February 12, 2013

An App Called PAUL Predicts The Videos You Want

PAUL-logoWith tablets and smartphones consuming more and more video content, a new app for Android simply called ?PAUL? aims to ease that ever-increasing network strain by using a predictive cache/download algorithm. Similar to peak-shaving in electrical grids, PAUL begins to predict your video consumption habits and downloads videos that it thinks you'll like, whenever you're logged into a WiFi network.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/OB4Ae60H04o/

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Wednesday, January 16, 2013

Sony Xperia Tablet Z tendr? m?s potencia y mejor pantalla Con el Sony Xperia Z...

Sony Xperia Tablet Z tendr? m?s potencia y mejor pantalla

Con el Sony Xperia Z ya presentado parece que Sony se queda un poco atr?s en tablets, con el ?ltimo Tablet S presentado en septiembre. ?Est? anticuado? Sigue siendo un tablet moderno, pero ?

Source: http://www.facebook.com/Xataka/posts/10151223290002636

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Cutting down on sugar has a small but significant effect on body weight, study finds

Jan. 15, 2013 ? Reducing sugar intake has a small but significant effect on body weight in adults, finds a paper published on bmj.com today.

Although the effect is relatively small (an average reduction of 0.8 kg), the findings provide some support for international guidelines to cut sugar intake to less than 10% of total energy to help reduce the global obesity epidemic.

Excessive sugar in the diet has been linked to obesity, and a higher risk of chronic diseases. The most consistent association has been between a high intake of sugar sweetened beverages and the development of obesity, but not all studies have reported a statistically significant link.

The World Health Organization has suggested that intake of "free sugars" should be less than 10% of total energy intake, but no upper safe limit has been agreed. So a team of researchers at the University of Otago and the Riddet Institute in New Zealand analysed the results of 71 studies (30 randomised controlled trials and 41 cohort studies) of sugar intake and body fatness to summarise evidence on the association between intake of dietary sugars and body weight in both adults and children.

Free sugars were defined as sugars that are added to foods by the manufacturer, cook, or consumer; plus those naturally present in honey, syrups, and fruit juices. Differences in study design and quality were taken into account to minimise bias.

They found that advice to reduce free sugars was associated with an average 0.8 kg reduction in weight (in studies that ran for up to 8 months), while advice to increase intake was associated with a corresponding 0.75 kg increase.

This parallel effect, they suggest, seems be due to an altered energy intake, since replacing sugars with other carbohydrates did not result in any change in body weight.

The evidence was also less consistent in children, mainly due to poor compliance to dietary advice. However, for sugar sweetened beverages, the risk of being overweight or obese increased among children with the highest intake compared with those with the lowest intake.

The authors say that, given the many causes of obesity, it is unsurprising that the effect of reducing intake is relatively small, and they point out that some other unmeasured (confounding) factors may explain some or all of this effect. But they add "the overall consistency of the findings, regardless of study type, is reassuring."

They also acknowledge that the extent to which population based advice to reduce sugars might reduce risk of obesity "cannot be extrapolated from the present findings, because few data from the studies lasted longer than ten weeks." But conclude that "when considering the rapid weight gain that occurs after an increased intake of sugars, it seems reasonable to conclude that advice relating to sugars intake is a relevant component of a strategy to reduce the high risk of overweight and obesity in most countries."

In an accompanying editorial, US experts say the association between sugar and poor health has remained contentious over the past few decades, but that accumulating evidence "points towards a role for sugar and other refined carbohydrates in the development of overweight."

They say reducing the intake of sugar sweetened drinks "is a high priority" and point to policies such as taxes on sugar laden drinks, restrictions on advertising to children, and limits on serving sizes. They also call for action at many levels, including educational programs, improvements in foods and drinks in schools and worksites, and nutrition programs for people with low incomes.

Finally, a feature comments on the 40th anniversary of the publication of the popular book -- Pure, White and Deadly -- written by the British physiologist John Yudkin, which claimed that high sugar consumption was associated with heart disease.

It considers new evidence linking fructose (found in nearly all added sugars) with insulin resistance -- a pre-cursor of heart disease -- and suggests that Yudkin's warnings are finally being recognised, despite ongoing opposition from the sugar industry.

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Story Source:

The above story is reprinted from materials provided by BMJ-British Medical Journal.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


Journal References:

  1. L. Te Morenga, S. Mallard, J. Mann. Dietary sugars and body weight: systematic review and meta-analyses of randomised controlled trials and cohort studies. BMJ, 2013; 346 (jan15 3): e7492 DOI: 10.1136/bmj.e7492
  2. W. C. Willett, D. S. Ludwig. Science souring on sugar. BMJ, 2013; 346 (jan15 3): e8077 DOI: 10.1136/bmj.e8077
  3. G. Watts. Sugar and the heart: old ideas revisited. BMJ, 2013; 346 (jan15 3): e7800 DOI: 10.1136/bmj.e7800

Note: If no author is given, the source is cited instead.

Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of ScienceDaily or its staff.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_health/~3/1-z4Q78wxo8/130115190208.htm

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Wednesday, January 2, 2013

Pa. governor sues NCAA over Penn State sanctions

STATE COLLEGE, Pa. (AP) ? In a bold challenge to the NCAA's authority, Pennsylvania's governor claimed in a lawsuit Wednesday that college sports' governing body overstepped its bounds and "piled on" when it penalized Penn State over the Jerry Sandusky child molestation scandal.

Gov. Tom Corbett asked that a federal judge throw out the sanctions, which include an unprecedented $60 million fine and a four-year ban on bowl games, arguing that the measures have harmed students, business owners and others who had nothing to do with Sandusky's crimes.

A small number of top NCAA officials inserted themselves "into an issue they had no authority to police under their own bylaws and one that was clearly being handled by the justice system," Corbett said at a news conference.

The federal antitrust lawsuit accuses the NCAA of cynically exploiting the Sandusky case, saying its real motives were to "gain leverage in the court of public opinion, boost the reputation and power of the NCAA's president, enhance the competitive position of certain NCAA members, and weaken a fellow competitor." It said the NCAA has not cited a rule that Penn State broke.

In a statement, the NCAA said the lawsuit has no merit and called it an "affront" to Sandusky's victims.

Penn State said it had no role in the lawsuit. In fact, it agreed not to sue as part of the deal with the NCAA accepting the sanctions, which were imposed in July after an investigation found that football coach Joe Paterno and other top officials hushed up sexual-abuse allegations against Sandusky, a former member of Paterno's staff, for more than a decade for fear of bad publicity.

The penalties include a cut in the number of football scholarships the university can award and a rewriting of the record books to erase 14 years of victories under Paterno, who was fired when the scandal broke in 2011 and died of lung cancer a short time later.

The lawsuit represents a reversal by the governor. When Penn State's president consented to the sanctions last summer, Corbett, a member of the Board of Trustees, embraced them as part of the university's effort to repair the damage from the scandal.

Corbett said he waited until now to sue over the "harsh penalties" because he wanted to thoroughly research the legal issues and did not want the case to interfere with the football season.

The deal with the NCAA has been unpopular with many fans, students and alumni. Corbett, who is up for re-election next year, deflected a question about whether his response has helped or hurt him politically.

"We're not going to get into the politics of this," he said.

An alumni group, Penn Staters for Responsible Stewardship, applauded the lawsuit but said Corbett should have asked questions when the NCAA agreement was made.

"If he disapproved of the terms of the NCAA consent decree, or if he thought there was something illegal about them, why didn't he exercise his duty to act long before now?" the group said.

Paterno's family members said in a statement that they were encouraged by the lawsuit. Corbett "now realizes, as do many others, that there was an inexcusable rush to judgment," they said.

Sandusky, 68, was convicted in June of sexually abusing 10 boys over a 15-year period, some of them on Penn State's campus. He is a serving a 30- to 60-year prison sentence.

Michael Boni, a lawyer for one of the victims, said he does not consider the lawsuit an affront. But he said he hopes Corbett takes a leading role in pushing for changes to state child-abuse laws.

"I really question who he's concerned about in this state," Boni said.

Michael Desmond, a businessman who appeared with Corbett at the news conference, said business at his five State College eating establishments was down about 10 percent during Penn State home game weekends this year.

"The governor's actions are going to be immensely popular with all Penn State alumni," Desmond said.

Corbett, a Republican, said his office did not coordinate its legal strategy with state Attorney General-elect Kathleen Kane, who is scheduled to be sworn in Jan. 15. Instead, the current attorney general, Linda Kelly, granted the governor authority to pursue the matter.

Kane, a Democrat, ran on a vow to investigate why it took prosecutors nearly three years to charge Sandusky. Corbett was attorney general when his office took over the case in 2009.

Kane had no comment on the lawsuit because she was not consulted about it by Corbett's office.

State and congressional lawmakers have objected to use of the NCAA fine to finance child-abuse prevention efforts in other states. Penn State has already made the first $12 million payment, and an NCAA task force is deciding how it should be spent.

Last week, state Sen. Jake Corman, whose district includes Penn State's main campus, said he plans to seek court action barring any of the first installment from being released to groups outside the state.

___

Associated Press writer Peter Jackson in Harrisburg, Pa., contributed.

Source: http://news.yahoo.com/pa-governor-sues-ncaa-over-penn-state-sanctions-203622498--spt.html

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Carl Woese, Dies; Discovered Life?s ?Third Domain?

[unable to retrieve full-text content]Dr. Woese was a biophysicist and evolutionary microbiologist who made a discovery 35 years ago that altered scientific understanding of evolution.

Source: http://www.nytimes.com/2013/01/01/science/carl-woese-dies-discovered-lifes-third-domain.html?partner=rss&emc=rss

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