Friday, May 31, 2013

Simple strategy works best to reduce infections, study finds

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Simple strategy works best to reduce infections, study finds
Using germ-killing soap to wash the sickest patients every day and applying antibacterial ointment inside their noses turns out to be the most effective way to reduce deadly hospital bloodstream infections, according to a study published Wednesday that has broad implications for practical use.

Source: Washington Post
Posted on: Thursday, May 30, 2013, 7:37am
Views: 29

Source: http://www.labspaces.net/128420/Simple_strategy_works_best_to_reduce_infections__study_finds

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Friday, May 3, 2013

Updated survey of small business attitudes ? The Monkey Cage

Sander Daniels sends along this info on a survey of small business attitudes in the U.S. A discussion of their methods is here. As I wrote when linking to their survey last year, I don?t know what to make of all of this?who knows what to make of their sample or the responses to these questions??but I?m impressed that they seem to describe exactly what they did.

Source: http://themonkeycage.org/2013/05/02/updated-survey-of-small-business-attitudes/

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Udonis Haslem Robbed: Burglars Break Into Miami Heat Star's Southwest Ranches Home (VIDEO)

Broward Sheriff's detectives are searching for at least two suspects after a break-in at the Southwest Ranches home of Miami Heat center Udonis Haslem.

It happened around 10 p.m. April 13 at Haslem's mansion, according to the investigative report.

The report stated five private security alarms were triggered when the suspects broke in through a garage. Haslem told police that a day earlier, a security company employee had been working on the alarm sensor in the garage.

Haslem got home about 20 minutes after deputies arrived. They found bedroom drawers and a suitcase had been opened and searched. Shoes and purses were missing from the closet but they were later found in large trash bags beside the bed in the master bedroom, according to the report. It was unknown what, if anything, had been taken.

There also were signs the suspects had failed to pry open a safe, the report stated.

Deputies said it appeared the suspects left in a hurry through some French doors in the bedroom. They think a lookout warned the burglars of the approaching patrol cars.

Teammate Chris Bosh also was the victim of a burglary in early April while out celebrating his birthday. Thieves got away with an estimated $340,000 worth of jewelry and purses, Miami Beach Police said. ___

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Source: http://www.huffingtonpost.com/2013/05/02/udonis-haslem-robbed-burglars_n_3199194.html

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Thursday, May 2, 2013

Minnesota Gov. Mark Dayton lobbies for same-sex marriage (Star Tribune)

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Source: http://news.feedzilla.com/en_us/stories/politics/top-stories/302931143?client_source=feed&format=rss

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Ky. child shooting part of urban-rural gun debate

A home in Cumberland County, Ky, is seen on May 1, 2013, where a 2-year-old girl was shot by her o5-year-old brother with a gun designed for children. Investigators say the Tuesday shooting was accidental. The children's mother was home at the time of the shooting Tuesday afternoon but had stepped out to the front porch for a few minutes and "she heard the gun go off," Cumberland County Coroner Gary White said. He said the rifle was kept in a corner and the family didn't realize a bullet was left inside it.(AP Photo/Dylan Lovan)

A home in Cumberland County, Ky, is seen on May 1, 2013, where a 2-year-old girl was shot by her o5-year-old brother with a gun designed for children. Investigators say the Tuesday shooting was accidental. The children's mother was home at the time of the shooting Tuesday afternoon but had stepped out to the front porch for a few minutes and "she heard the gun go off," Cumberland County Coroner Gary White said. He said the rifle was kept in a corner and the family didn't realize a bullet was left inside it.(AP Photo/Dylan Lovan)

BURKESVILLE, Ky. (AP) ? As Stephanie Sparks cleaned the kitchen, her 5-year-old son, Kristian, began playing with a rifle he was given last year. She stepped out onto the front porch, poured grease out of a frying pan for the dogs and "heard the gun go off," a Kentucky coroner said.

Authorities said the boy had fatally shot his 2-year-old sister, Caroline, in the chest.

In rural southern Kentucky, far removed from the national debate over gun control, where some children get their first guns even before they start first grade, the accident stunned the community.

Kristian's rifle was kept in a corner of the mobile home, and the family didn't realize a bullet had been left in it, Cumberland County Coroner Gary White said.

"Down in Kentucky where we're from, you know, guns are passed down from generation to generation," White said. "You start at a young age with guns for hunting and everything."

What is more unusual than a child having a gun, he said, is "that a kid would get shot with it."

In this case, the rifle was made by a company that sells guns specifically for children ? "My first rifle" is the slogan ? in colors ranging from plain brown to hot pink to royal blue to multi-color swirls.

"It's a normal way of life, and it's not just rural Kentucky, it's rural America ? hunting and shooting and sport fishing. It starts at an early age," Cumberland County Judge Executive John Phelps said. "There's probably not a household in this county that doesn't have a gun."

In Cumberland County, as elsewhere in Kentucky, local newspapers feature photos of children proudly displaying their kills, including turkey and deer. Even one of the latest reality shows on CMT, "Guntucky," features a family-owned gun range in Kentucky. The range, Knob Creek, says on its website that it is as a safe place for youngsters to learn about firearms and offers family memberships.

Ruby Wright, who teaches hunter safety classes in Burkesville, said children younger than 9 can sit in, but they can't get certification. She also coaches 4-H shooting sports, requiring those children to be 9 as well.

Phelps, who is much like a mayor in these parts, said it had been four or five years since there had been a shooting death in the county, which lies along the Cumberland River near the Tennessee state line.

"The whole town is heartbroken," Phelps said of Burkesville, a farming community of 1,800 about 90 miles northeast of Nashville, Tenn. "This was a total shock. This was totally unexpected."

Phelps said he knew the family well. He said the father, Chris Sparks, works as a logger at a mill and also shoes horses.

The family lives in a gray mobile home on a long, winding road, surrounded by rolling hills and farmland that's been in the family since the 1930s. Toys, including a small truck and a basketball goal, were on the front porch, but no one was home Wednesday.

There's a house across the street, but the next-closest neighbor lives over a hill.

Family friend Logan Wells said he received a frantic call telling him that the little girl was in an accident and to come quickly.

When he got to the hospital, Caroline was already dead. "She passed just when I got there," Wells said.

White said the shooting had been ruled accidental, though a police spokesman said it was unclear whether any charges will be filed.

"I think it's too early to say whether there will or won't be," Trooper Billy Gregory said.

White said the boy received the .22-caliber rifle as a gift, but it wasn't clear who gave him the gun, which is known as a Crickett.

"It's a little rifle for a kid. ... The little boy's used to shooting the little gun," White said.

The company that makes the rifle, Milton, Pa.-based Keystone Sporting Arms, has a "Kids Corner" on its website with pictures of young boys and girls at shooting ranges and on bird and deer hunts. It says the company produced 60,000 Crickett and Chipmunk rifles for kids in 2008. The smaller rifles are sold with a mount to use at a shooting range.

Keystone also makes guns for adults, but most of its products are geared toward children, including books, hats and bright orange vests.

"The goal of KSA is to instill gun safety in the minds of youth shooters and encourage them to gain the knowledge and respect that hunting and shooting activities require and deserve," the website said.

No one at the company answered the phone Wednesday.

According to the website, company founders Bill McNeal and his son Steve McNeal decided to make guns for young shooters in the mid-1990s and opened Keystone in 1996 with just four employees, producing 4,000 rifles that year. It now employs about 70 people.

It also has a long list of testimonials from parents who talk about how grateful they are to be able to go shooting with their children. All of the guns have safety locks, and some even have ones that require a key.

Police did not release the model of the rifle Kristian had.

Sharon Rengers, a longtime child advocate at Kosair Children's Hospital in Louisville, said making and marketing weapons specifically for children was "mind-boggling."

"It's like, oh, my God," she said, "we're having a big national debate whether we want to check somebody's background, but we're going to offer a 4-year-old a gun and expect something good from that?"

State Rep. Robert R. Damron, a Democrat and an outspoken gun rights advocate in Kentucky, said the problem is not guns, but the parents who do not teach gun safety and responsibility.

"Why single out firearms? Why not talk about all the other things that endanger children, too?" he said. "The Second Amendment doesn't give anybody carte blanche freedom to put children and juveniles at risk."

___

Associated Press writer Janet Cappiello in Louisville, Ky., contributed to this report.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/386c25518f464186bf7a2ac026580ce7/Article_2013-05-02-US-Toddler-Accidentally-Shot/id-c6e246f7900a481aaaa750ec04c3d08b

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Wednesday, May 1, 2013

Graphene's high-speed seesaw

Apr. 29, 2013 ? A new transistor capable of revolutionising technologies for medical imaging and security screening has been developed by graphene researchers from the Universities of Manchester and Nottingham.

Writing in Nature Communications, the researchers report the first graphene-based transistor with bistable characteristics, which means that the device can spontaneously switch between two electronic states. Such devices are in great demand as emitters of electromagnetic waves in the high-frequency range between radar and infra-red, relevant for applications such as security systems and medical imaging.

Bistability is a common phenomenon -- a seesaw-like system has two equivalent states and small perturbations can trigger spontaneous switching between them. The way in which charge-carrying electrons in graphene transistors move makes this switching incredibly fast -- trillions of switches per second.

Wonder material graphene is the world's thinnest, strongest and most conductive material, and has the potential to revolutionise a huge number of diverse applications; from smartphones and ultrafast broadband to drug delivery and computer chips. It was first isolated at The University of Manchester in 2004.

The device consists of two layers of graphene separated by an insulating layer of boron nitride just a few atomic layers thick. The electron clouds in each graphene layer can be tuned by applying a small voltage. This can induce the electrons into a state where they move spontaneously at high speed between the layers.

Because the insulating layer separating the two graphene sheets is ultra-thin, electrons are able to move through this barrier by 'quantum tunnelling'. This process induces a rapid motion of electrical charge which can lead to the emission of high-frequency electromagnetic waves.

These new transistors exhibit the essential signature of a quantum seesaw, called negative differential conductance, whereby the same electrical current flows at two different applied voltages. The next step for researchers is to learn how to optimise the transistor as a detector and emitter.

One of the researchers, Professor Laurence Eaves, said: "In addition to its potential in medical imaging and security screening, the graphene devices could also be integrated on a chip with conventional, or other graphene-based, electronic components to provide new architectures and functionality.

"For more than 40 years, technology has led to ever-smaller transistors; a tour de force of engineering that has provided us with today's state-of-the-art silicon chips which contain billions of transistors. Scientists are searching for an alternative to silicon-based technology, which is likely to hit the buffers in a few years' time, and graphene may be an answer."

"Graphene research is relatively mature but multi-layered devices made of different atomically-thin materials such as graphene were first reported only a year ago. This architecture can bring many more surprises," adds Dr Liam Britnell, University of Manchester, the first author of the paper.

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The above story is reprinted from materials provided by Manchester University.

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Journal Reference:

  1. L. Britnell, R. V. Gorbachev, A. K. Geim, L. A. Ponomarenko, A. Mishchenko, M. T. Greenaway, T. M. Fromhold, K. S. Novoselov, L. Eaves. Resonant tunnelling and negative differential conductance in graphene transistors. Nature Communications, 2013; 4: 1794 DOI: 10.1038/ncomms2817

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

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Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_technology/~3/Fo3jGSxLZt0/130430131354.htm

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