Sunday, March 31, 2013

Low-power use for mobile devices: 60 GHz radio frequency chip

Mar. 29, 2013 ? As the capacity of handheld devices increases to accommodate a greater number of functions, these devices have more memory, larger display screens, and the ability to play higher definition video files. If the users of mobile devices, including smartphones, tablet PCs, and notebooks, want to share or transfer data on one device with that of another device, a great deal of time and effort are needed.

As a possible method for the speedy transmission of large data, researchers are studying the adoption of gigabits per second (Gbps) wireless communications operating over the 60 gigahertz (GHz) frequency band. Some commercial approaches have been introduced for full-HD video streaming from a fixed source to a display by using the 60 GHz band. But mobile applications have not been developed yet because the 60 GHz radio frequency (RF) circuit consumes hundreds of milliwatts (mW) of DC power.

Professor Chul Soon Park from the Department of Electrical Engineering at the Korea Advanced Institute of Science and Technology (KAIST) and his research team recently developed a low-power version of the 60 GHz radio frequency integrated circuit (RFIC). Inside the circuit are an energy-efficient modulator performing amplification as well as modulation and a sensitivity-improved receiver employing a gain boosting demodulator.

The research team said that their RFIC draws as little as 67 mW of power in the 60 GHz frequency band, consuming 31mW to send and 36mW to receive large volumes of data. RFIC is also small enough to be mounted on smartphones or notebooks, requiring only one chip (its width, length, and height are about 1 mm) and one antenna (4x5x1 mm3) for sending and receiving data with an integrated switch.

Professor Park, Director of the Intelligent Radio Engineering Center at KAIST, gave an upbeat assessment of the potential of RFIC for future applications:

"What we have developed is a low-power 60-GHz RF chip with a transmission speed of 10.7 gigabits per second. In tests, we were able to stream uncompressed full-HD videos from a smartphone or notebook to a display without a cable connection. Our chip can be installed on mobile devices or even on cameras so that the devices are virtually connected to other devices and able to exchange large data with each other."

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The above story is reprinted from materials provided by The Korea Advanced Institute of Science and Technology (KAIST), via EurekAlert!, a service of AAAS.

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


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Source: http://feeds.sciencedaily.com/~r/sciencedaily/~3/wDhOcuqbnp4/130329161245.htm

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Wildfire threatens ecological zone in southern Brazil

Lauro Alves / Agencia RBS via AFP - Getty Images

An aerial view of the Taim Ecological Station on fire, in Rio Grande do Sul state, southern Brazil, on March 27, 2013.

A wildfire that started on Tuesday has consumed around?1,400 acres of a protected ecological station in southern Brazil. The fire at the?Taim Ecological Station is at risk of spreading further, Agence France-Presse reports,?since there is limited access to water.?

Lauro Alves / Agencia RBS via AFP - Getty Images

Source: http://feeds.nbcnews.com/c/35002/f/653387/s/2a216fb4/l/0Lphotoblog0Bnbcnews0N0C0Inews0C20A130C0A30C290C1751530A10Ewildfire0Ethreatens0Eecological0Ezone0Ein0Esouthern0Ebrazil0Dlite/story01.htm

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Saturday, March 30, 2013

Southampton beats Chelsea 2-1 in Premier League

Associated Press Sports

updated 2:02 p.m. ET March 30, 2013

SOUTHAMPTON, England (AP) -Rickie Lambert scored for the 14th time in his first Premier League season as Southampton beat Chelsea 2-1 on Saturday to edge closer to securing its status in the top flight.

The highest scoring Englishman in the league this season struck from a free kick in the 35th minute only two minutes after Chelsea captain John Terry had cancelled out Jay Rodriguez's 23rd-minute opening goal at St. Mary's Stadium.

After also beating Liverpool last round, Southampton rose two spots to 13th, four points above the relegation zone with seven matches left.

The result endangers Chelsea's bid to finish in the top four and qualify for the Champions League. The reigning European champions are only two points ahead of fifth-place Arsenal after their first league loss in five weeks.

? 2012 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.


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PST: Teenager Jose Villarreal hit a spectacular bicycle kick in stoppage time to salvage a 2-2 draw for the Galaxy in Toronto.

Source: http://nbcsports.msnbc.com/id/51380906/ns/sports-soccer/

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Friday, March 29, 2013

Tips To Make Your Travels More Memorable

This article will give you advice on how to have a pleasant trip, whether you are traveling to visit relatives, or to go on a cruise. Take the time to plan your vacation according to this advice for a truly relaxing experience.

Make sure to research the current status of social and political events and occurrences in the foreign country you'll be visiting. The Consular Affairs Bureau has a regularly updated list of potential situations that could be dangerous for foreign travelers. This resource can help keep you out of situations that may threaten your well-being.

It is not uncommon to provide the housekeeper and bell hop with a tip. For these services, a good tip for housekeeping would be from $2-$5 per day, and $1 per bag of luggage. If you treat the staff well, then they will treat you well.

Prior to booking your hotel you should read reviews of the different resorts or hotels you are considering. This is the easiest way to save yourself a bad traveling experience. Customer reviews and feedback that is overwhelmingly negative is usually a good indicator of somewhere to avoid.

When taking a vacation abroad, bring along local currency so you have money to spend right away. You do not want to find yourself stranded late at night with no way to exchange your money. Many banks can offer currency exchange before you depart or most airports have a currency exchange that you can use prior to getting on the plane. That way you can enjoy yourself and not worry upon arrival.

Brush your dogs prior to putting them in your car when going on a trip. This helps to cut down on how much hair will blow around the car. Make sure to pack dog essentials, like water and food bowls, along with waste bags for your dog.

Travel with bottled water when traveling outside of the country. Because other countries do not purify their water, you can get many illnesses from drinking it. Do not forget to use bottled water for teeth brushing as well. Tap water can still make you sick this way.

When traveling by air, wear lightweight, comfortable shoes that can be easily slipped on and off. You might have to take them off quickly for security checks. Also, being comfortable is key during travel, to keep you from getting too tired and stressed. You don't need a lot of support for a little walking and a lot of sitting. Wearing sandals like flip flops or Crocs is a great way to stay comfortable on your flight.

Anytime you are traveling, be aware of all your belongings the entire time. If you have a purse with you, keep it close to your body at all times. Do not carry a bag with easy access to any of the pockets. When you are buying a bag keep these things in mind.

Always bring an extra pair of glasses on your trip. In doing this, you have a readily accessible spare pair in case your primary ones are damaged. Pack them with your regular luggage, not your carry-on, so they won't risk being stolen.

Follow these tips and your next vacation should be the relaxing trip you dreamed of. Can you start making a list and preparing for your upcoming trip now?

Source: http://www.articlesnatch.com/Article/Tips-To-Make-Your-Travels-More-Memorable/4510072

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Mass. Senate candidates spar over health care, abortion (cbsnews)

Share With Friends: Share on FacebookTweet ThisPost to Google-BuzzSend on GmailPost to Linked-InSubscribe to This Feed | Rss To Twitter | Politics - Top Stories Stories, News Feeds and News via Feedzilla.

Source: http://news.feedzilla.com/en_us/stories/politics/top-stories/295249602?client_source=feed&format=rss

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My Purchases Shows You the Android Apps You've Bought (Because Google Won't)

My Purchases Shows You the Android Apps You've Bought (Because Google Won't)Android (2.2+): For whatever reason, Google can't or won't filter the apps you've installed in your orders & settings to show just the paid-for apps. If you want to see what you've spent, for guilt or accounting purposes, the My Purchases app does the job.

My Purchases could definitely stand to improve in its next few updates. There only a few minimal options, to filter out canceled purchases or apps you have installed at that moment. And the only sorting is reverse chronological, though the app did catch everything I had bought from my primary account. For those simply looking to check up on their buying history, it's an app that does just what it should.

My Purchases' free version has advertising, while the $1.29 paid version removes the advertising.

Update: Whoops! Looks like we already posted this app yesterday. Sorry about the duplicate news, everyone!

My Purchases | Google Play

Source: http://feeds.gawker.com/~r/lifehacker/full/~3/tyQR1qw1J-k/my-purchases-shows-you-the-android-apps-youve-bought-because-google-wont

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Gun control backers struggle to win some Democrats

WASHINGTON (AP) ? It would seem a lobbyist's dream: rounding up votes for a proposal backed by more than 8 in 10 people in polls. Yet, gun control supporters are struggling to win over moderate Democrats in their drive to push expanded background checks for firearms purchasers through the Senate next month.

Backed by a $12 million TV advertising campaign financed by New York Mayor Michael Bloomberg, gun control groups scheduled rallies around the country Thursday aimed at pressuring senators to back the effort. President Barack Obama was meeting at the White House with gun violence victims.

Moderate Senate Democrats like Mark Pryor of Arkansas and Heidi Heitkamp of North Dakota are shunning Bloomberg as a meddling outsider while stressing their allegiance to their own voters' views and to gun rights. While saying they're keeping an open mind and support keeping guns from criminals and people with mental disorders, many Democrats are avoiding specific commitments they might regret later.

"I do not need someone from New York City to tell me how to handle crime in our state. I know that we can go after and prosecute criminals without the need to infringe upon the Second Amendment rights of law-abiding North Dakotans," Heitkamp said this week, citing the constitutional right to bear arms.

Heitkamp does not face re-election next year, but Pryor and five other Senate Democrats from Republican-leaning or closely divided states do. All six, from Southern and Western states, will face voters whose deep attachment to guns is unshakeable ? not to mention opposition from the still potent National Rifle Association should they vote for restrictions the NRA opposes.

"We have a politically savvy and a loyal voting bloc, and the politicians know that," said Andrew Arulanandam, spokesman for the NRA, which claims nearly 5 million paying members.

The heart of the Senate gun bill will be expanded requirements for federal background checks for gun buyers, the remaining primary proposal pushed by Obama and many Democrats since 20 first-graders and six women were shot to death in December at an elementary school in Newtown, Conn. Senate Democratic leader Harry Reid of Nevada already has given up any hope of winning majority support for reimposing a ban on assault weapons and large-capacity magazines for ammunition.

Today, the background checks apply only to sales by the nation's roughly 55,000 federally licensed gun dealers. Not covered are private transactions like those at gun shows and online. The Senate measure is still evolving as Sens. Chuck Schumer, D-N.Y., Joe Manchin, D-W.Va., and Mark Kirk, R-Ill., use Congress' two-week recess to negotiate for additional support in both parties.

Expanding background checks to include gun show sales got 84 percent support in an Associated Press-GfK poll earlier this year. Near universal background checks have received similar or stronger support in other national polls.

Polls in some Southern states have been comparable. March surveys by the Quinnipiac University Polling Institute found more than 9 in 10 people in Florida and Virginia backing expanded background checks, the same margin found by an Elon University Poll in North Carolina in February.

Analysts say people support more background checks because they consider it an extension of the existing system. That doesn't translate to unvarnished support from lawmakers, in part because the small but vocal minorities who oppose broader background checks and other gun restrictions tend to be driven voters that politicians are reluctant to alienate.

"It's probably true that intense, single-issue gun voters have been more likely to turn out than folks who want common-sense gun laws," said Mark Glaze, director of Mayors Against Illegal Guns, the group that Bloomberg helps lead. Glaze, however, said he believes that has changed somewhat since Newtown and other recent mass shootings.

Several moderate Democrats are holding back as they assess the political landscape. They're also waiting to see exactly what the Senate will consider.

Sen. Mark Begich, D-Alaska, said Wednesday his state's voters tell him, "Don't take away our rights, our individual rights, our guns." Begich said he opposes a strict proposal requiring background checks for nearly all gun sales but will wait to see whether there is a bipartisan compromise he can support.

The problems faced by gun control supporters go beyond the challenge of winning moderate Democrats. GOP opponents are sure to force Democrats to get 60 of the Senate's 100 votes to win, and there are only 53 Democrats plus two independents who generally support them.

Also targeted by Bloomberg's ads are 10 Republicans, including Sen. Jeff Flake of Arizona, home of ex-Rep. Gabrielle Giffords, who was severely wounded in a mass shooting; the retiring Saxby Chambliss of Georgia; and moderate Susan Collins of Maine.

In another indicator of hurdles facing gun control forces, the Senate voted 50-49 last week to require 60 votes for any legislation narrowing gun rights. The proposal lost because 60 votes in favor were required, but six Democrats voted for the proposal, offered by conservative Sen. Mike Lee, R-Utah.

"It confirms there's no such thing as an easy gun vote," said Jim Kessler, a senior vice president of the centrist Democratic group Third Way.

Underscoring the uncertainty about moderate Democrats:

?Sen. Mark Warner, D-Va., is "still holding conversations with Virginia stakeholders and sorting through issues on background checks" and proposals to ban assault weapons and high capacity ammunition magazines, spokesman Kevin Hal said.

?Pryor said of Bloomberg's ads: "I don't take gun advice from the mayor of New York City. I listen to Arkansans." Spokesman Michael Teague said Pryor opposes universal background checks but could favor expanding the requirement to gun show sales.

?Sen. Kay Hagan, D-N.C., told the Greensboro News & Record she favors expanded background checks, but said her vote would depend on the measure's details. Sen. Joe Donnelly, D-Ind., answered, "Yes," when the Fort Wayne Journal Gazette asked whether he supports gun show background checks.

The gun bill also increases penalties for illegal gun sales and slightly boosts aid for school safety.

More abrupt changes like an assault weapons ban generally get slight majorities in polls. Democratic leaders decided to omit it from the Senate bill because such a provision lacks enough votes.

Source: http://news.yahoo.com/gun-control-backers-struggle-win-democrats-065637861--politics.html

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