Source: http://news.feedzilla.com/en_us/stories/politics/top-stories/288478071?client_source=feed&format=rss
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Sunday, March 3, 2013
6 Commonly Misunderstood Tech Terms
Most high-tech terms are not easy to understand, especially if you?don?t work in technology.? It?doesn?t?have to be that way though! Most terms just need to be explained in a different way.? On the flip side, if you work in IT, you know it?s not always easy to explain things in a way that a non-techie will understand, and here?s where we find ourselves at an impasse.? I wrote this article with the idea in mind that I could help bridge this gap by describing a few of the most commonly misunderstood terms in a way that could make sense to even the most tech-illiterate.
CPU
A CPU is not a computer; let?s get that out of the way right off the bat.? CPU actually stands for Central Processing Unit.? The CPU is really the brains of the computer.? That seems easy to understand,?doesn?t?it?? The CPU is in charge of receiving input from the computer?s hardware and software and interpreting it in a way that it can be executed.? Without the CPU, you?wouldn?t?be able to pull up Microsoft Word, send an email or doing anything really.? You might have to make the choice between an AMD and Intel processor; you are choosing a CPU manufacturer.? Some people only like Intel, some AMD; it just depends on what you plan on doing with your computer system.
The Internet
What?s the difference between the Internet and the intranet?? Well, first off, see that the Internet is capitalized; that?s because it?s describing the Internet itself, a living, breathing network of networks.? The Internet consists of government, educational and private entities that are connecting via wired or wireless networking technologies.? The Internet can seem to be something beyond understanding, but this Ted talk from Andrew Blum titled ?What is the Internet Really?? should help you understand it much better than you ever have before.
The Cloud
I guarantee you haven?t heard a buzzier tech world in your life than ?the cloud.? ?There are so many misconceptions about the cloud.? You can store your data in the cloud, house your email in the cloud, and play music that?s in the cloud on your device, among many other things.? Simply put, the cloud is a collection of servers or storage containers that exist in a location other the than your own computer?s hard drive.? For you to access your data in the cloud, you basically need an end point or a device with Internet access such as your phone, tablet or PC.? When you access your data/music/backups in the cloud, you are simply logging into a hosting company?s server or storage device and pulling down your data through the Internet.? It?s that simple.? Where your data/music/backups are?doesn?t?matter to you, just as long as you can get it on demand.? In fact, most of you have been using the cloud for a long time and don?t even realize it.? If you have any sort of webmail, such as Gmail, Yahoo or Hotmail, guess what?? You are using the cloud. Doesn?t?seem so complicated now does it?
VoIP
Voice-over-Internet Protocol or VoIP is a great technology.? Much like the cloud,?you?ve?most likely used VoIP before.? Ever used Skype?? Tango?? Vonage?? You guessed it;?you?ve?used VoIP technology.? VoIP uses the Internet Protocol to deliver voice from end to end. Basically, you are using the Internet to talk instead of a standard phone line.
App
Yes, we?ve all heard the ?there?s an app for that? ad campaign by Apple, but what is an app really?? There are apps for your banking, movie times, sports, news and, of course, games.? Apps or applications, are what I like to think of as the Internet a la carte.? Apps are basically the Internet in smaller doses.? Remember the days when we used to surf the Internet to find out banking info, or surf the Internet to read the news or get sports scores?? That era is dead (mostly, anyway) and the era of apps or Internet a la carte is alive and well.
Ethernet
We all know that the cable plugged into our router and into the back of our computer is an Ethernet cable, right?? Wrong.? The cable is actually a Cat5e cable, not an Ethernet cable.? Ethernet is a protocol used by computers to deliver networking across a physical medium such as Cat5e cable.? Ethernet can also be delivered wirelessly via radio waves emitted from a wireless router, which is what just about all of use on a daily basis.
If You?Didn?t?Know, Now You Know
Congratulations! You now know some geek speak! When it comes down to it, it?s just good to learn something new or understand it better.? The only thing I want you to take away is to never be afraid to ask a question if you don?t understand something.? There are no dumb questions, and any good IT guy would love to explain to you in detail any tech topic you are interested in.? The guys that can talk your ear off are the guys that love what they do, so don?t be afraid to ask!
Or, if geek speak is like your second language, hopefully this article will help you the next time you get stuck trying to explain to your family what you do for a living. ?I know you?ve been there!
(Editor?s note: See Greg?s blog for a post he wrote asking people to help him figure out a way to describe virtualization to his family.)
Need to brush up on your basics? Check out TrainSignal?s new CompTIA A+ 220-801 (2012 Objectives) course and sign up for a 3-day free trial to access all of our courses.
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About the Author
Greg Stuart is a vExpert and systems administrator/network administrator by trade, who has worked a slew of IT jobs in his career. He's put his time in with certification training, obtaining A+, Network+, Security+, MCP, CCNA, VCP4, VCP5 and NCDA. He now works as an IT consultant and runs the blogs, vDestination and vLATAM.
Author's Website: http://vdestination.com/
Source: http://www.trainsignal.com/blog/misunderstood-tech-terms
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Saturday, March 2, 2013
'Machine vision' MFT cam arrives for robotics, remote photography, special effects
If you're asking yourself "where's the shutter button on that thing?" then a new machine vision camera from SVS-Vistek, the SVCam-evo "Tracer" is probably not for you. However, it may spark tinkerers or other niches as the boxy look belies its capabilities. For starters, it packs a micro four thirds mount with a Truesense CCD sensor, opening the door to lenses a cut above the usual industrial fare. You'll also get frame rates of 146, 85, 40 and 21 fps at 1, 2, 4 and 8-megapixels, respectively, along with auto gain; exposure, focus and electric zoom control; PC software for basic image capture; and a GigE Vision interface. The latter -- along with a Windows and Linux SDK -- will make the device ideal for those who don't mind digging into code for applications like robotics, aerial and remote imaging or even "special effects and unique POV" cinematography. The rest of us won't be able to just fire it up and take pictures, however, and as for the price? There's no word yet on that or availability, but don't expect a consumer-friendly figure.
Filed under: Cameras
Via: 4/3 Rumors
Source: SVS-Vistek (pdf)
Source: http://www.engadget.com/2013/03/01/svs-vistek-outs-industrial-mft-cam/
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Friday, March 1, 2013
Scientists discover molecule that does double duty in stopping asthma attacks
Thursday, February 28, 2013
Scientists from Brigham and Women's Hospital are on the brink of the next treatment advancement that may spell relief for the nearly nineteen million adults and seven million children in the United States suffering from asthma. The scientists discovered two new drug targets in the inflammatory response pathway responsible for asthma attacks.
The study will be published on February 27, 2013 in Science Translational Medicine.
Researchers studied the lungs and blood of 22 people with mild and severe asthma. They saw that immune cells called natural killer cells and type 2 innate lymphoid cells played significant roles in airway inflammation in study participants with severe asthma.
Natural killer cells decreased airway inflammation by encouraging programmed cell death in immune cells called eosinophils, whereas type 2 innate lymphoid cells promoted airway inflammation by secreting cell-signaling molecules called interleukin-13.
Both mechanisms were controlled by a molecule called lipoxin A4 which is responsible for resolving inflammation. To achieve this, lipoxin A4 acted in both pro-resolving and anti-inflammatory ways. The researchers saw that lipoxin A4 encouraged natural killer cells to decrease inflammation by facilitating eosinophil cell death. Lipoxin A4 also discouraged type 2 innate lymphoid cells from promoting inflammation by blocking interleukin-13 secretion.
"Stopping airway inflammation is similar to putting out a forest fire," said Bruce Levy, MD, Pulmonary and Critical Care Medicine Division, BWH Department of Internal Medicine, senior study author. "Firefighters tackle forest fires in two ways?dousing the fire with water and clearing away dry brush that could fuel the fire. Lipoxin A4 does just that to resolve inflammation. It is an airway inflammation fighter that performs the double duty of dampening pathways that ignite inflammation while at the same time clearing away cells that fuel inflammation."
In previous studies, Levy and his team discovered that lipoxin A4 production was defective in patients with severe asthma. Together with their new findings, this observation provides researchers and drug manufacturers with a new direction toward boosting lipoxin A4 in severe asthmatics when designing next-generation asthma therapies.
"Most patients with severe asthma have chronic airway inflammation that never fully resolves. This can lead to daily and often disabling symptoms despite available therapies. Our study provides new information on cellular targets that regulate inflammation and will enable the development of lipoxin-based therapeutics to decrease chronic inflammation in asthma and other diseases." said Levy.
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Brigham and Women's Hospital: http://www.brighamandwomens.org
Thanks to Brigham and Women's Hospital for this article.
This press release was posted to serve as a topic for discussion. Please comment below. We try our best to only post press releases that are associated with peer reviewed scientific literature. Critical discussions of the research are appreciated. If you need help finding a link to the original article, please contact us on twitter or via e-mail.
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Raila: born into politics, set on Kenya's top job | Capital News
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Source: http://www.capitalfm.co.ke/news/2013/03/raila-born-into-politics-set-on-kenyas-top-job/
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Virginia Upsets Duke: No. 3 Blue Devils Fall To Cavaliers 73-68
CHARLOTTESVILLE, Va. ? Joe Harris scored a career-high 36 points and Virginia celebrated the 11-year anniversary of its last victory over a top 5 team by doing it again, beating No. 3 Duke 73-68 on Thursday night.
Akil Mitchell added 19 points and 12 rebounds as he and Harris outplayed Duke's top twosome of Seth Curry and Mason Plumlee, giving Virginia (20-8, 10-5 Atlantic Coast Conference) its 16th consecutive victory at home. It came 11 years to the day since an 87-84 victory, also against No. 3 Duke.
Curry led Duke with 28 points, all but five coming after halftime, and Quinn Cook had 22, but the Blue Devils (24-4, 11-4) failed to slow down either Harris or Mitchell, whose dominating play kept a sellout crowd giddy all night. Plumlee finished with 10 points, seven rebounds and three turnovers and several times looked up to see Mitchell dunking over him.
In the second half, Harris and Mitchell scored Virginia's first 16 points as the Cavaliers built a 64-50 lead with 3:23 left before closing the victory at the free throw line.
Virginia led 28-23 at halftime. Curry hit a 3-pointer to start the second half but Mitchell responded with a 15-footer, Harris missed a 3-pointer over Plumlee, but went around him for the rebound and laid it in. As the Blue Devils were missing six consecutive shots, Mitchell hit two free throws, and when Rasheed Sulaimon fouled Harris in the act of shooting, he drew a technical foul for arguing.
Harris made all four shots, finishing off a 10-0 burst that made it 38-26, and when Virginia added a 7-2 burst a short time later, the lead was 49-35 with 8:15 to play and John Paul Jones Arena was roaring.
The Blue Devils, who may have been looking ahead to a matchup with No. 5 Miami on Saturday, never got closer than nine points until the final minute, when Virginia made 3 of 4 free throws to hold on.
The victory was huge for the Cavaliers, who were in need of a marquee victory to enhance their NCAA tournament credentials, and got it with a fast start and a stifling defensive effort that limited Duke to 39.6 percent shooting (21 of 53). And the Cavaliers did it despite making only three 3-pointers, more than four below its average, by pounding the ball inside. Virginia scored 34 points inside, Duke just 22.
With its first sellout since North Carolina visited last season, the Cavaliers quickly brought the crowd into the game by scoring the first nine points on their way to a 15-4 lead after 6 1/2 minutes.
The lead got to 18-6 on a three-point play by Harris before Duke settled down offensively.
Curry hit two free throws for his first points midway through the half, sparking a 15-4 burst for the Blue Devils that got them within 22-21 with 4:26 to play. Curry finished it with a 3-pointer, hit only field goal of the half. Duke's only points the rest of the half came on Plumlee's lone field goal of the half.
Jontel Evans steal and layup gave Virginia a 24-21 lead, and was Virginia's first field goal scored by anyone but Harris in more than 11 minutes. Baskets by Harris and Mitchell made it 28-23 at the half.
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Source: http://www.huffingtonpost.com/2013/02/28/virginia-duke-upset-73-68-joe-harris_n_2786788.html
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Obama, Boehner to attend Rosa Parks statue unveiling
WASHINGTON (AP) ? Rosa Parks is famous for her 1955 refusal to give up her seat on a city bus in Alabama to a white man, but there's plenty about the rest of her experiences that she deliberately withheld from her family.
While Parks and her husband, Raymond, were childless, her brother, the late Sylvester McCauley, had 13 children. They decided Parks' nieces and nephews didn't need to know the horrible details surrounding her civil rights activism, said Rhea McCauley, Parks' niece.
"They didn't talk about the lynchings and the Jim Crow laws," said McCauley, 61, of Orlando, Fla. "They didn't talk about that stuff to us kids. Everyone wanted to forget about it and sweep it under the rug."
Parks' descendants now have a chance to be first-hand witnesses as their late matriarch makes more history, this time becoming the first black woman to be honored with a full-length statue in the Capitol's Statuary Hall. The statue of Parks joins a bust of another black woman, abolitionist Sojourner Truth, which sits in the Capitol Visitors Center.
President Barack Obama, Senate Minority Leader Mitch McConnell and House Speaker John Boehner are among the dignitaries taking part in the unveiling Wednesday. McCauley said more than 50 of Parks' relatives traveled to Washington for the ceremony.
In a pivotal moment in the civil rights movement, Rosa Parks refused to give up her seat on a city bus in segregated Montgomery, Ala. She was arrested, touching off a bus boycott that stretched over a year.
Jeanne Theoharis, author of the new biography "The Rebellious Life of Mrs. Rosa Parks," said Parks was very much a full-fledged civil rights activist, yet her contributions have not been treated like those of other movement leaders, such as the Rev. Martin Luther King Jr.
"Rosa Parks is typically honored as a woman of courage, but that honor focuses on the one act she made on the bus on Dec. 5, 1955," said Theoharis, a political science professor at Brooklyn College-City University of New York.
"That courage, that night was the product of decades of political work before that and continued ... decades after" in Detroit, she said.
Parks died Oct. 24, 2005, at age 92. The U.S. Postal Service issued a stamp in her honor on Feb. 4, which would have been her 100th birthday.
Parks was raised by her mother and grandparents who taught her that part of being respected was to demand respect, said Theoharis, who spent six years researching and writing the Parks biography.
She was an educated woman who recalled seeing her grandfather sitting on the porch steps with a gun during the height of white violence against blacks in post-World War I Alabama.
After she married Raymond Parks, she joined him in his work in trying to help nine young black men, ages 12 to 19, who were accused of raping two white women in 1931. The nine were later convicted by an all-white jury in Scottsboro, Ala., part of a long legal odyssey for the so-called Scottsboro Boys.
In the 1940s, Parks joined the NAACP and was elected secretary of its Montgomery, Ala., branch, working with civil rights activist Edgar Nixon to fight barriers to voting for blacks and investigate sexual violence against women, Theoharis said.
Just five months before refusing to give up her seat, Parks attended Highlander Folk School, which trained community organizers on issues of poverty but had begun turning its attention to civil rights.
After the bus boycott, Parks and her husband lost their jobs and were threatened. They left for Detroit, where Parks was an activist against the war in Vietnam and worked on poverty, housing and racial justice issues, Theoharis said.
Theoharis said that while she considers the 9-foot-statue of Parks in the Capitol an "incredible honor" for Parks, "I worry about putting this history in the past when the actual Rosa Parks was working on and calling on us to continue to work on racial injustice."
Parks has been honored previously in Washington with the Presidential Medal of Freedom in 1996 and the Congressional Gold Medal in 1999, both during the Clinton administration.
But McCauley said the Statuary Hall honor is different.
"The medal you could take it, put it on a mantel," McCauley said. "But her being in the hall itself is permanent and children will be able to tour the (Capitol) and look up and see my aunt's face."
Source: http://news.yahoo.com/rosa-parks-statue-set-unveiled-capitol-085442523--politics.html
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