Tuesday, December 6, 2011

Kids With Epilepsy Should Get Screened for Autism, Developmental Delays (HealthDay)

MONDAY, Dec. 5 (HealthDay News) -- Children seen in epilepsy clinics should be screened for development delay and autism because the conditions often occur together, new research suggests.

Researchers at Children's Memorial Hospital in Chicago asked parents of children under age 5 who had epilepsy to fill out screening questionnaires. The results showed that 75 percent of children also had a developmental delay, while 41 percent had autism.

More than one-third of the children had not been previously diagnosed with either autism or developmental delay, the researchers noted.

The results "support routine screening of both new onset and established cases of pediatric epilepsy," according to the researchers in a news release.

The study is slated to be presented on Monday at the American Epilepsy Society annual meeting in Baltimore. Because this study was presented at a medical meeting, the data and conclusions should be viewed as preliminary until published in a peer-reviewed journal.

More information

The U.S. National Institute of Neurological Disorders and Stroke provides more information on epilepsy.

Source: http://us.rd.yahoo.com/dailynews/rss/parenting/*http%3A//news.yahoo.com/s/hsn/20111205/hl_hsn/kidswithepilepsyshouldgetscreenedforautismdevelopmentaldelays

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Monday, December 5, 2011

Silicon-free 'superior' microchip

The first computer chip made out of a substance described as a "promising" alternative to silicon has been tested by researchers.

The Switzerland-based team used molybdenite disulfide (MoS2) - a dark-coloured, naturally occurring mineral.

The group said the substance could be used in thinner layers than silicon, which is currently the most commonly used component in electronics.

It said MoS2 could make smaller, more flexible chips that used less energy.

The substance is currently used as an ingredient in engine lubricants, ski waxes and as a strengthening agent for plastics.

Prof Andras Kis, the director of the Laboratory of Nanoscale Electronics and Structures (LANES) in Lausanne, published details of the research in the latest edition of the ACS Nano journal.

He said the team chose to experiment with this semiconductor, rather than another material, in part because it was easily available.

"There is something like 19 million metric tonnes around," Prof Kis told the BBC.

"You can just go on some websites on the internet and buy a 1cm by 1cm crystal for around $100 [?64]."

Surfaces oxidise

To obtain a thin layer of the material to work with, Prof Kis's team put a strip of sticky plastic over the crystal, peeled it off and then attached the sliver to a support. The plastic was then peeled off to leave the very thin layer of MoS2 exposed.

Using this, the team built a prototype microchip circuit to which they attached up to six serial transistors allowing them to carry out simple logic operations.

Although the integrated circuit was basic, Prof Kis said it proved that more complex designs would be possible on thinner chips than could be produced with silicon.

"The problem with silicon is that you cannot make very thin things from it because it is very reactive," he said.

"The surface likes to oxidise - to bind with oxygen and hydrogen - and that makes its electrical properties degrade when you want to make a very thin film."

As a result the thinnest usable layers of silicon used in computer chips have been around two nanometres thick. MoS2, by contrast, can be used in layers just three atoms thick, allowing chips to be made at least three times smaller.

Stiff as steel

A key advantage of having a thinner material is that the transistors can also be shrunk in size.

"If you have a transistor that is very thin it will also automatically dissipate less power - so it spends less power. So in a nutshell it allows you to make electronics that spend less electrical energy," Prof Kis said.

MoS2 also has the advantage that it is as stiff as stainless steel, but is also capable of being flexible.

"It can be bent to large angles and can be stretched a lot," said Prof Kis.

"If you take a sheet of molybdenite you can stretch it so that it increases its length by 10% - that is a lot in this context.

"If you did the same with silicon it would break like glass."

The team said the material might be suitable for flexible electronics that could be rolled into tubes, attached to the skin or used to make mobile phones that curved themselves to fit the owner's face.

Low temperatures

MoS2 faces a challenge from graphene, another flexible semiconductor, as a potential replacement for silicon.

But the Swiss team believe their material has a key advantage - it can amplify electronic signals at room temperature, while graphene must be cooled to 70 Kelvin - cold enough for nitrogen to turn into liquid.

"If you look at the circuits in computers, for example, you have millions of transistors connected in series doing some kind of calculation," said Prof Kis.

"The important thing is that the signal that goes into the processor doesn't get reduced as a consequence of the operation, because then you'd lose your electrical signal in the chip.

"So it has to be constantly amplified. Silicon can do this and so can molybdenite, but graphene can only do it at very low temperatures."

Despite MoS2's potential, the researchers said it would be at least 10 to 20 years before it would be likely to enter commercial use.

In the meantime the group said it planned to explore whether it could make the mineral more conductive and would also try to find a less labour-intensive way of producing thin layers of the substance.

Source: http://www.bbc.co.uk/go/rss/int/news/-/news/technology-16034693

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Secure Communications Network Based on NetFPGA Archive - IT ...

Abstract

NetFPGA is a hardware platform, designed and developed by the Stanford University, which is lowly cost and reusable. NetFPGA allows us to build high-performance network system model in the development environment of the hardware level, whose speed is up to Gb/s. Then we can study and test network models with the network system model.NetFPGA is a Linux-based open platform, so people can use all the ready resources on the platform while building their own systems, and their own systems can also be used by others, just by adding modules or modifying existing modules according to their needs.Encryption technology is one of the most commonly used security measures, which is used to ensure secure transmission of data. We can transfer the data into garbled codes by using encryption and then transmit them, and those garbled codes are encrypted to ciphertext, then restored by using the same or different means after they arrive the destination, and this is a decryption process, decrypted into the original. Encryption technology consists of two elements:algorithms and keys. Algorithm is a set of instructions to solve the problem, that is, to a certain standard input, you can obtain the required output within a limited time, the algorithm can be understood as a complete problem-solving steps consisting of basic operations and posed operation orders. The key is a parameter, which is an input datum in an algorithm, this algorithm can be plaintext being converted to cipher text, it can also be cipher text being converted to plaintext. In the security technology, you can use the appropriate key encryption technology and a certain management mechanism to ensure the security of information in communication networks.This article is on NetFPGA secure communication through network. First, we design and realize encryption and decryption modules on the NetFPGA by coding, and add them to the NetFPGA development board. Secure communication through network based on NetFPGA refers to that, in the network transmission of information packets between hosts, to encrypt and decrypt the information packet going through NetFPGA development board, and then achieve the confidentiality of network communications. Encryption modules based on FPGA have high performance, which is well beyond the software implementation of DES algorithm. This examination has implemented and verified NetFPGA encryption modules, and uses them to increase the speed of data transmissionChapter one introduces the origin of the NetFPGA, and its core components, including the FPGA, Memory, PHY, PCI, SATA. Chapter two introduces the methods of building NetFPGA environment. Chapter three introduces the hardware description language-Verilog language, and then introduces network security. Fouth part of this article is about realization, and it introduces the design of series of modules. The first module is encrypt and decrypt the main module DES, then is a finite state machine FSM module, and secondly the implementation of these modules is introduced, including the S box design and key generation, and finally we validate and test the design.

Source: http://www.it-paper.com/secure-communications-network-based-on-netfpga.html

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Sunday, December 4, 2011

Senate backs military custody of terror suspects

Senate Majority Leader Harry Reid of Nev., center, accompanied by, from left, Sen. Patty Murray, D-Wash., Senate Majority Whip Richard Durbin of Ill., and Sen. Charles Schumer, D-N.Y., speaks to reporters about extending the payroll tax cut, Thursday, Dec. 1, 2011, on Capitol Hill in Washington. (AP Photo/Charles Dharapak)

Senate Majority Leader Harry Reid of Nev., center, accompanied by, from left, Sen. Patty Murray, D-Wash., Senate Majority Whip Richard Durbin of Ill., and Sen. Charles Schumer, D-N.Y., speaks to reporters about extending the payroll tax cut, Thursday, Dec. 1, 2011, on Capitol Hill in Washington. (AP Photo/Charles Dharapak)

(AP) ? Ignoring a presidential veto threat, the Democratic-controlled Senate moved methodically Thursday to complete a massive defense bill that would deny suspected terrorists, even U.S. citizens seized within the nation's borders, the right to trial and subject them to indefinite detention.

The Senate rejected an effort by Intelligence Committee Chairman Dianne Feinstein to limit a military custody requirement for suspects to those captured outside the United States. The vote was 55-45. Feinstein, D-Calif., said her goal was to ensure "the military won't be roaming our streets looking for suspected terrorists."

The issue divided Democrats with nine senators, many facing re-election next year, breaking with the leadership and administration to vote against the amendment. Republicans held firm, with only Sens. Rand Paul of Kentucky, Mark Kirk of Illinois and Mike Lee of Utah backing Feinstein's effort.

Overall, the deficit-driven bill would authorize $662 billion for military personnel, weapons systems, national security programs in the Energy Department and the wars in Iraq and Afghanistan in the fiscal year that began Oct. 1. Reflecting a period of austerity and a winding down of decade-old conflicts, the bill is $27 billion less than what President Barack Obama requested and $43 billion less than what Congress gave the Pentagon this year.

The Senate pushed to finish the bill by day's end. Its version must be reconciled with a House-passed measure in the final weeks of the congressional session.

In an escalating fight with the White House, the bill would ramp up the role of the military in handling terror suspects. The bill's language challenges citizens' rights under the Constitution, tests the boundaries of executive and legislative branch authority and sets up a showdown with the Democratic commander in chief.

It reflects the politically charged dispute over whether to treat suspected terrorists as prisoners of war or criminals. The administration insists that the military, law enforcement and intelligence agents need flexibility in prosecuting the war on terror after they've succeeded in killing al-Qaida's Osama bin Laden and Anwar al-Awlaki.

In its veto threat, the White House said it cannot accept any legislation that "challenges or constrains the president's authorities to collect intelligence, incapacitate dangerous terrorists and protect the nation." Defense Secretary Leon Panetta and FBI Director Robert Mueller have opposed the provisions.

Republicans counter that their efforts are necessary to respond to an evolving, post-Sept. 11 threat, and that Obama has failed to produce a consistent policy on handling terror suspects.

The bill would require military custody of a suspect deemed to be a member of al-Qaida or its affiliates and involved in plotting or committing attacks on the United States. American citizens would be exempt. The bill does allow the executive branch to waive the authority based on national security and hold a suspect in civilian custody.

The legislation also would give the government the authority to have the military hold an individual suspected of terrorism indefinitely, without a trial. That provision had no exception for a U.S. citizen.

Feinstein offered another amendment, one that would prohibit the indefinite detention of a U.S. citizen without charges or trial. She has said the last time the government held U.S. citizens indefinitely was when Japanese-Americans were interned in camps during World War II.

Kirk has called the provision unconstitutional, violating the Fourth Amendment and the right of individuals to be secure in their homes from unreasonable searches and seizures.

Countered Sen. Kelly Ayotte, R-N.H.: "We need the authority to hold those individuals in military custody so we aren't reading them Miranda rights."

Earlier this week, the Senate resoundingly rejected an effort to strip the detainee provisions from the defense bill and instead hold hearings on the issue.

The Senate was expected to overwhelmingly approve crippling sanctions on Iran as fears about Tehran developing a nuclear weapon outweighed concerns about driving up oil prices that would hit economically strapped Americans at the gas pump.

Last week, the administration announced a new set of penalties against Iran, including identifying for the first time Iran's entire banking sector as a "primary money laundering concern." This requires increased monitoring by U.S. banks to ensure that they and their foreign affiliates avoid dealing with Iranian financial institutions.

But lawmakers pressed ahead with even tougher penalties despite reservations by the administration.

Sens. Bob Menendez, D-N.J., and Kirk offered an amendment that would target foreign financial institutions that do business with the Central Bank of Iran, barring them from opening or maintaining correspondent operations in the United States. It would apply to foreign central banks only for transactions that involve the sale or purchase of petroleum or petroleum products.

The sanctions on petroleum would only apply if the president determines there is a sufficient alternative supply and if the country with jurisdiction over the financial institution has not significantly reduced its purchases of Iranian oil.

Testifying before the Senate Foreign Relations Committee, David Cohen, a senior Treasury Department official, and Wendy Sherman, an undersecretary of state, warned that the amendment could force up oil prices ? a financial boon for Iran.

"There is absolutely a risk that in fact the price of oil would go up, which would mean that Iran would in fact have more money to fuel its nuclear ambitions, not less," Sherman said. "And our real objective here is to cut off the economic means that Iran has for its nuclear program."

Cohen said the amendment would tell foreign banks and companies "that if they continue to process oil transactions with the Central Bank of Iran their access to the United States can be terminated."

"It is a very, very powerful threat," Cohen warned. "It is a threat for the commercial banks to end their ability to transact in the dollar and their ability really to function as major international financial institutions," and one that could push allies away from contributing to a coordinated effort against Iran.

___

Associated Press writer Bradley Klapper contributed to this report.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/3d281c11a96b4ad082fe88aa0db04305/Article_2011-12-01-US-Congress-Defense/id-3e5b69d04d7e45bb8184927a727433e0

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Saturday, December 3, 2011

Acer riding shotgun on quad-core bandwagon, confirms Tegra 3 tablet coming next year

The web was rife with scuttlebutt yesterday that the artist formerly known as Kal-el would make an appearance in an Acer slate next year. In response, Acer's President Jim Wong has confirmed that the company will, indeed, be bringing a quad-core tablet to market in 2012. Unfortunately, Wong failed to mention any other details about Acer's next Android slate, though he did say the company plans to "remain very aggressive" on the tablet front. We're not sure what that means, but we do know we can't wait to see the results of that aggression -- who's up for a quad-core cage match between the unnamed Acer and a Transformer Prime?

Acer riding shotgun on quad-core bandwagon, confirms Tegra 3 tablet coming next year originally appeared on Engadget on Thu, 01 Dec 2011 07:53:00 EDT. Please see our terms for use of feeds.

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Source: http://www.engadget.com/2011/12/01/acer-riding-shotgun-on-quad-core-bandwagon-confirms-tegra-3-tab/

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Former Paraguay guerilla Marciano Villagra dies (AP)

ASUNCION, Paraguay ? A former guerrilla who battled two of Paraguay's military-led governments has died at age 93.

Marciano Villagra led Paraguay Communist Party guerrillas in various actions, including the brief takeover of the town of Piribebuy in 1947. He went into hiding after Gen. Alfredo Stroessner took power in 1954.

His daughter Irina Villagra said he died Monday from general infections.

Party leader Luis Casabianca said Villagra died in his home in the Asuncion neighborhood of Sajonia without ever finding the bodies of his son Derlis and brother Americo, who disappeared during Stroessner's reign. Villagra received the equivalent of about $50,000 in 2008 as indemnification for his persecution.

Source: http://us.rd.yahoo.com/dailynews/rss/obits/*http%3A//news.yahoo.com/s/ap/20111130/ap_on_re_la_am_ca/lt_paraguay_obit_guerilla_leader_villagra

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Friday, December 2, 2011

Cain campaign crumbling after affair allegation (Reuters)

WASHINGTON (Reuters) ? Herman Cain told aides on Tuesday he would reassess the viability of his struggling campaign after an Atlanta woman accused him of conducting a 13-year extramarital affair.

The allegations could be the end of the political line for Cain, who led the Republican White House race barely more than a month ago but has nosedived in polls after a series of sexual harassment charges and campaign missteps.

Cain denies he had an affair with businesswoman Ginger White, who told an Atlanta television station that her on-and-off relationship with Cain began in the mid-1990s.

The former pizza executive told aides in a conference call transcribed by the conservative magazine National Review that he would gauge the impact of the charges over the next few days and see if it created a cloud of doubt in supporters' minds.

"Obviously, this is cause for reassessment," Cain told staff members, adding he would continue his campaign schedule over the next few days.

"The public will have to decide whether they believe her or whether they believe me. That's why we're going to give it time, to see what type of response we get from our supporters," he said.

The affair allegation comes five weeks before Iowa kicks off the Republican battle for the right to challenge President Barack Obama, giving Cain little time to resurrect a once high-flying campaign.

In addition to the sexual harassment allegations by four women, Cain also has stumbled on the campaign trail. He raised alarm among conservatives with confusing comments about abortion and a badly fumbled question on policy toward Libya.

His fundraising also appears to have stalled. Aides who crowed about his strong surge in donations in October have declined to answer questions about his cash flow in recent days.

"It's over for Cain. On the heels of everything else, I don't see how you come back from this," Republican strategist Rich Galen said.

Cain's difficulties have opened the door for Newt Gingrich, the former House speaker who has zoomed to the top of opinion polls with the support of conservatives hunting for an alternative to the more moderate Mitt Romney in the Republican race.

Conservatives have failed to coalesce around a single candidate this year as several contenders -- first U.S. Representative Michele Bachmann, then Texas Governor Rick Perry and then Cain -- have risen in polls only to fall back.

'ONE MORE THING'

"I don't see a path to victory for Cain anymore," said Ryan Rhodes, founder of the Iowa Tea Party. "He was already looking at the end of the line, but this is one more thing to finish him."

Gingrich has seen his poll numbers rise as Cain's crumbled. Support for Romney, the former Massachusetts governor, has held relatively steady in the mid-20s in polls for much of the year.

On the conference call, Cain said the claims of an affair were taking an emotional toll on him and his wife but promised to wage an upbeat campaign starting with an appearance in Michigan on Tuesday night.

Cain said his planned reassessment was similar to what he did at earlier key junctures in the race.

"During the summer we had to make some reassessments based upon our financial situation," he said. "We also did a reassessment after the Iowa straw poll and we made another reassessment after the Florida straw poll."

The charge of an affair differs from prior harassment claims in that White says she had a consensual long-term relationship.

White said the two met at a presentation Cain gave for the National Restaurant Association in Kentucky, and afterward the two had drinks. Cain invited her back to his hotel, she said, and the relationship took off.

The woman provided cell phone bills showing calls to a number she said was Cain's personal mobile phone.

Cain's lawyer, Lin Wood, said the allegation "appears to be an accusation of private, alleged consensual conduct between adults - a subject matter which is not a proper subject of inquiry by the media or the public."

(Additional reporting by Kim Dixon; Editing by Doina Chiacu)

Source: http://us.rd.yahoo.com/dailynews/rss/us/*http%3A//news.yahoo.com/s/nm/20111129/pl_nm/us_usa_campaign_cain

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