রবিবার, ৩০ জুন, ২০১৩

Young Imbeciles Destroy Largest Lego Helicopter Ever

Young Imbeciles Destroy Largest Lego Helicopter Ever

Yesterday a group of idiotic teens destroyed the largest Lego helicopter in the world, the 100,000-piece Erickson Air-Crane. Built by Ryan McNaught over the course of six weeks, the pieces alone are valued at $25,000.

The massive 13-foot-long (4 meters), 3.2-foot-tall (1 meter) model was on display at Cairns Central Shopping Centre in Cairns, Australia, when a group of stupid youngsters approached it and deliberately pushed it from its display. They fled right after the helicopter crashed, spreading most of its pieces over the mall's floor. The police are now examining the CCTV footage to determine the identity of these vandals, may they end in a hell in which every time they walk they step barefoot onto the sharpest Lego bricks in the universe.

Talking to Cairns.com.au, McNaught said: "I was disappointed that my six weeks' worth of work was not going to be able to be appreciated by the community but more so I was upset for the kids."

You're reading Leg Godt, the blog with the latest Lego news and the most awesome Lego models in the web. Follow us on Twitter.

Source: http://lego.gizmodo.com/young-imbeciles-destroy-largest-lego-helicopter-ever-614196901

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সোমবার, ২৪ জুন, ২০১৩

It'll Take Months to Get a Bride Out of This Lego Wedding Dress

It'll Take Months to Get a Bride Out of This Lego Wedding Dress

Japanese artist Rie Hosokai, of Daisy Balloon, created this amazing piece of high Lego fashion for Tokyo's "Piece of Peace" charity exhibit at the Parco Museum. Structurally it's simply stunning (albeit a bit Disney Princessy). The construction, contour and shape are based on Hosokai's balloon dress. As an item of haute couture, it's not so utilitarian. But as an avant-garde work-of-Lego-art it's simply stunning.

Here's how Hosokai explains the meaning behind the piece:

There is fear in that we are all different from one another, but that is also the gateway to self-consciousness.
Self-consciousness was once whole, but in the modern trend where all things whole get broken down, it too is about to get deconstructed.
For that reason, people now seek to reconstruct their consciousness by extending it onto others.
Through this process of extension, we have learned to unravel things down to their basic elements.
We are succeeding at digging up new knowledge of what it is we all share.
This knowledge that bonds different people together seems to appear suddenly, but in reality it is already coded into our planet, our universe.
We construct things from the most basic building blocks.
What are we to discover from this process?
To find the answer, we must continue to turn our gaze toward those around us. - Text by Arata Sasaki

It'll Take Months to Get a Bride Out of This Lego Wedding Dress

It'll Take Months to Get a Bride Out of This Lego Wedding Dress

[Daisy Balloon]

You're reading Leg Godt, the blog with the latest Lego news and the most awesome Lego models in the web. Follow us on Twitter.

Source: http://lego.gizmodo.com/itll-take-months-to-get-a-bride-out-of-this-lego-weddi-524051717

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রবিবার, ২৩ জুন, ২০১৩

Karin Kasdin: Forget The Cake. Let Them See Movies!

I once whined to my grandmother who was 90 years old at the time that the cost of feeding my family was escalating faster than our salaries. To this she replied, "Back in the Depression when I was feeding my family you could buy a 10 pound bag of potatoes for a dime. The trouble was, no one had a dime." That shut me up.

But now I am a grandmother and when my children complain about how expensive it is to live, I would be lying if I gave them a similar response. We always had the dime. We even had the dollar. Sadly, our children will need wheelbarrows of money to live the way we did on a comfortable, but not outrageous income. I'm sure they will all be able to own their own homes and eat well, but the cost of leisure activities will be so high, there is a good chance my grandchildren will be culturally deprived.

We babysat for our precious granddaughter last week and spent a day at the zoo. Admission cost us $78. That's because we passed on the carousel, camel and train rides, each of which has its own surcharge. I should have packed a picnic, but ignorant of the admission price, we bought barely edible cold burgers and hot soda for $30. Needless to say, the diversity of the crowd was pitifully low. The zoo used to be a default trip for our family because the son who only loved sports and the son who only loved music and the son who only loved girls, all loved the zoo. Today, there are millions and millions of children who will never see a zebra close up and that makes me sad.

And what about sports? Most young families would have to mortgage their homes or take out home equity loans in order to afford major league tickets. I've seen old film clips of baseball games. The fans didn't all look rich. They looked clean and well-kempt, but not rich. These days you better hope your team sucks so the ticket prices are lower. And that's only baseball. To score football tickets you not only need a vault full of cash, but the connections to help you nab them.

Theater? Fuggedaboutdit. Even half-price tickets to Broadway shows are beyond the means of the middle class.

Rock concerts? In my youth I saw The Beatles, The Rolling Stones and Hermit's Hermits (okay, I was 14, give me a break). The cheapest tickets we could score for the Rolling Stones 50th anniversary tour were $300. See ya' Mick!

This week Steven Speilberg and George Lucas predicted movies will cost between $50-$150 dollars in the not-too-distant future. Movies? Are you kidding me? The family outing of choice? We loved taking our kids to the movies. Okay, I wasn't crazy about The Ninja Turtles, but I sat through it without complaint. Is there nothing left for a family to do together?

Perhaps our entertainment moguls might want to reconsider the real cost of excluding a large portion of our population from 90 minutes of escape from reality.

From what I've learned, the price of a ticket is beans compared to the cost in monetary and human terms of revolution.

Earlier on Huff/Post50:

  • Long-Distance Call

    "I remember when I was very young, my family calling me to the phone, excited that we were making a 'long distance' call from our home in New Jersey, all the way to Chicago! I listened to the person on the other end, who sounded like they were at the end of a long tunnel. What a miracle!" - <a href="http://www.reddit.com/user/wayndom" target="_hplink">Wayndom</a>, 64 (<a href="http://www.flickr.com/photos/silevitas/3875833956/" target="_hplink">Image via Flickr</a>, Si Levitas)

  • First Computer

    "The first computer I used was a remote terminal that would read the punch cards we fed it, sent the data 200 miles to a mainframe where the data was run and the results were returned, several hours later. The terminal, as primitive as it was occupied an entire classroom." - <a href="http://www.reddit.com/user/slowshot" target="_hplink">Slowshot</a>, 59 (<a href="http://www.flickr.com/photos/mwichary/2282601545/" target="_hplink">Image via Flickr</a>, Marcin Wichary)

  • Reel-To-Reel Tape Recorder

    "In the mid-60s (my early teens) I was the only person I knew who owned a reel-to-reel tape recorder... and I owned it expressly to record TV show's audio off the air. I still have the recordings actually -- the first Star Trek episodes, The Prisoner episodes... and in 1967 portable audio cassette recorders became available." - <a href="http://www.reddit.com/user/chuxarino" target="_hplink">Chuxarino</a>, 59 (<a href="http://www.flickr.com/photos/41002268@N03/4825199407/" target="_hplink">Image via Flickr</a>, Carbon Arc)

  • First Video Game

    "The first video game I ever played was Pong." - <a href="http://www.reddit.com/r/AskReddit/comments/vwemc/today_im_71_from_a_post_a_week_ago_i_learned_im/" target="_hplink">SOmuch2learn</a>, 71 (<a href="http://www.flickr.com/photos/22595976@N03/3058462864/" target="_hplink">Image via Flickr</a>, Jimmah82)

  • My First Computer Was A Science Fair Project

    "I built my first 'computer' as a science fair project in 1962. It was just a register made from transistor flip-flops, a rotary phone dial for input, and incandescent bulbs for display. I wrote my first program on punched paper tape on a teletype machine connected via 300 bps modem to a timeshare computer. It was in fortran, contained an infinite loop and timed out the CPU at 3 mins. That bug cost me $50, minimum wage was around $1 then." - <a href="http://www.reddit.com/user/anonanon1313" target="_hplink">Anonanon1313</a>, 63 (<a href="http://www.flickr.com/photos/ppl_ri_images/4020597204/" target="_hplink">Image via Flickr</a>, Providence Public Library)

  • TV

    "I remember our first little black-and-white TV, and our first color set several years later, and how much tweaking you had to do to get even crappy green faced images." - <a href="http://www.reddit.com/user/anonanon1313" target="_hplink">Anonanon1313</a>, 63 (<a href="http://www.flickr.com/photos/jacobwhittaker/6309156354/" target="_hplink">Image via Flickr</a>, Jacob Whittaker)

  • From Cassettes To CDs

    "I remember my first cassette player. It had a built-in radio. I taped the Beatles first hits. I remember 8-track car tape decks. I remember the first Walkman (cassette), I bought it in an appliance store. I remember the first CD player, buying it and my first CDs ($17!), and soon after boxing up my collection of over 1,000 LPs and hundreds of cassettes, where they still sit." - <a href="http://www.reddit.com/user/anonanon1313" target="_hplink">Anonanon1313</a>, 63 (<a href="http://www.flickr.com/photos/edvvc/200260730/" target="_hplink">Image via Flickr</a>, edvvc)

  • From PCs to MacBook

    "Technology fascinates me. I used PCs for years & now am finding my way around a MacBook Pro. When VCRs came out, I was first in line. Watching movies at home -- unbelievable -- as was using a phone without being limited by the length of the cord. Now I have an iPhone which is really a mini-computer. Love the Internet and trying new apps. I'm excited to see what's next." - <a href="http://www.reddit.com/r/AskReddit/comments/vwemc/today_im_71_from_a_post_a_week_ago_i_learned_im/" target="_hplink">SOmuch2learn</a>, 71 (Photo credit: Getty)

  • Two TV Stations

    "We had two TV stations, on a black-and-white TV, but there was always something to watch. Today we have over 100 channels (most in HD), but the same programs that I watched as a kid, 'I Love Lucy,' 'Leave It to Beaver,' 'Andy Griffith,' etc. are still being re-run endlessly, while people complain that there is nothing on worth watching." - <a href="http://www.reddit.com/user/slowshot" target="_hplink">Slowshot</a>, 59 (<a href="http://www.flickr.com/photos/photography_and_design/6311451518/" target="_hplink">Image via Flickr</a>, Jonas Merian)

  • Film Reels

    "In school, educational films and documentaries came on reels of 16 mm film that ran 15 minutes. Today you get high def blu-rays that run four hours on a 5 1/4" disk." - <a href="http://www.reddit.com/user/slowshot" target="_hplink">Slowshot</a>, 59 (<a href="http://www.flickr.com/photos/salvagenation/6166882291/" target="_hplink">Image via Flickr</a>, Salvagenation)

  • Computer Class

    "My first introductory computer class about 35 years ago used punch cards for very remedial database programming exercises. It was tedious as all get out, but it gave me a huge foresight into an understanding of the power of data and how to harness that power and manage it to your benefit. A substantial portion of my current job still involves database administration." - <a href="http://www.reddit.com/user/reg-o-matic" target="_hplink">Reg-o-matic</a>, 57 (<a href="http://www.flickr.com/photos/mwichary/2355797229/" target="_hplink">Image via Flickr</a>, Marcin Wichary)

  • Vinyl Records

    "In the late 50s/early 60s stereo recordings and phonographs were just becoming popular. A high quality vinyl record had a max of 45 minutes of music on a double-sided 12" disk. Today you can get 6 hours of music on a thumb drive." - <a href="http://www.reddit.com/user/slowshot" target="_hplink">Slowshot</a>, 59 (Photo credit: AP)

  • Computer Tracking

    "Biggest technology wonders in my 52 years, definitely communications. Work has changed dramatically... I started as a medical receptionist and learned an antique, handwritten system for keeping track of the money (in 1979), and the last system I learned was a completely comprehensive computer system that kept track of everything, and I mean EVERYTHING." - <a href="http://www.reddit.com/user/MeliMagick" target="_hplink">MeliMagick</a>, 52

?

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Source: http://www.huffingtonpost.com/karin-kasdin/family-outings-expensive_b_3451153.html

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Southwest cancels 57 flights after computer glitch

In this Feb. 9, 2012 file photo, a Southwest Airlines Boeing 737 waits to take off at Chicago's Midway Airport as another lands. A spokesman for Southwest Airlines says all departing flights have been grounded due to a system-wide computer problem, Saturday, June 22, 2013. (AP Photo/Charles Rex Arbogast)

In this Feb. 9, 2012 file photo, a Southwest Airlines Boeing 737 waits to take off at Chicago's Midway Airport as another lands. A spokesman for Southwest Airlines says all departing flights have been grounded due to a system-wide computer problem, Saturday, June 22, 2013. (AP Photo/Charles Rex Arbogast)

(AP) ? Southwest Airlines expects some lingering delays Saturday morning after a system-wide computer failure caused it to ground 250 flights for nearly three hours late Friday night.

Full service was restored just after 2 a.m. EDT Saturday, but the Dallas-based airline is still working to clear a backlog of flights and reposition planes and crew.

The airline ? the country's largest domestic carrier ? canceled 43 flights Friday night and another 14 Saturday morning.

Southwest is the latest airline to ground flights because of a large computer outage. But its problem was minor compared to those experienced by two competitors ? thanks in part to its late-day timing.

In April, American Airlines grounded all of its flights nationwide for several hours due to computer problems. The airline ultimately canceled 970 flights. And last year, United Airlines had two major outages: one in August delayed 580 flights; another in November delayed 636 flights.

The problem was detected around 11 p.m. EDT Friday, Southwest spokesman Brad Hawkins said. It impaired the airline's ability to do such things as conduct check-ins, print boarding passes and monitor the weight of each aircraft. Some flights were on the taxiway and diverted back to the terminal, Hawkins said. Flights already in the air were unaffected.

Most of Southwest's cancelations Friday night were in the western half of the country, according to airline spokeswoman Michelle Agnew. Saturday's cancelations were scattered across the U.S. They included planes leavings from Minneapolis, Chicago, Phoenix, Denver and San Diego, according to flight tracking service FlightAware.

Southwest flies an average of 3,400 flights each day.

Agnew said in an email Saturday morning that the airline's technology team is "still working to confirm the source of the issue."

Shortly after 2 a.m., Southwest posted on its Twitter page that "systems are operating and we will begin work to get customers where they need to be. Thanks for your patience tonight."

Agnew said the computer system was "running at full capacity" by early Saturday. Before that, though, officials used a backup system that was much more sluggish.

______

AP Airlines Writer Scott Mayerowitz in New York contributed to this report.

Associated Press

Source: http://hosted2.ap.org/APDEFAULT/386c25518f464186bf7a2ac026580ce7/Article_2013-06-22-Southwest%20Flights%20Grounded/id-d9700ff4174f4422b2571bfb03362f35

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শনিবার, ২২ জুন, ২০১৩

Snowden in a 'safe place' as U.S. prepares to seek extradition

By Tabassum Zakaria and Mark Hosenball

WASHINGTON (Reuters) - The United States has filed espionage charges against Edward Snowden, a former U.S. National Security Agency contractor who admitted revealing secret surveillance programs to media outlets, according to a court document made public on Friday.

The charges are the government's first step in what could be a long legal battle to return Snowden from Hong Kong, where he is believed to be in hiding, and try him in a U.S. court. A Hong Kong newspaper said he was under police protection, but the territory's authorities declined to comment.

Snowden was charged with theft of government property, unauthorized communication of national defense information and willful communication of classified communications intelligence to an unauthorized person, said the criminal complaint, which was dated June 14.

The latter two offenses fall under the U.S. Espionage Act and carry penalties of fines and up to 10 years in prison.

A single page of the complaint was unsealed on Friday. An accompanying affidavit remained under seal.

Two U.S. sources, speaking on condition of anonymity, said the United States was preparing to seek Snowden's extradition from Hong Kong, which is part of China but has wide-ranging autonomy, including an independent judiciary.

The Washington Post, which first reported the criminal complaint earlier on Friday, said the United States had asked Hong Kong to detain Snowden on a provisional arrest warrant.

Hong Kong's Chinese-language Apple Daily quoted police sources as saying that anti-terrorism officers had contacted Snowden, arranged a safe house for him and provided protection. However, the South China Morning Post (SCMP) said Snowden was not in police protection but was in a "safe place" in Hong Kong.

Hong Kong Police Commissioner Andy Tsang declined to comment other than to say Hong Kong would deal with the case in accordance with the law.

Snowden earlier this month admitted leaking secrets about classified U.S. surveillance programs, creating a public uproar. Supporters say he is a whistleblower, while critics call him a criminal and perhaps even a traitor.

He disclosed documents detailing U.S. telephone and Internet surveillance efforts to the Washington Post and Britain's Guardian newspaper.

On Saturday, Hong Kong's SCMP said Snowden had divulged information to the newspaper showing how computers in Hong Kong and China had been targeted.

The SCMP said documents and statements by Snowden show the NSA program had hacked major Chinese telecoms companies to access text messages, attacked China's top Tsinghua University, and hacked the Hong Kong headquarters of Pacnet, which has an extensive fiber optic submarine network.

The criminal complaint was filed in the Eastern District of Virginia, where Snowden's former employer, Booz Allen Hamilton, is located.

That judicial district has seen a number of high-profile prosecutions, including the spy case against former FBI agent Robert Hanssen and the case of al Qaeda operative Zacarias Moussaoui. Both were convicted.

'ACTIVE EXTRADITION RELATIONSHIP'

Documents leaked by Snowden revealed that the NSA has access to vast amounts of Internet data such as emails, chat rooms and video from large companies such as Facebook and Google, under a government program known as Prism.

They also showed that the government had worked through the secret Foreign Intelligence Surveillance Court to gather so-called metadata - such as the time, duration and telephone numbers called - on all calls carried by service providers such as Verizon.

President Barack Obama and his intelligence chiefs have vigorously defended the programs, saying they are regulated by law and that Congress was notified. They say the programs have been used to thwart militant plots and do not target Americans' personal lives.

U.S. federal prosecutors, by filing a criminal complaint, lay claim to a legal basis to make an extradition request of the authorities in Hong Kong, the Post reported. The prosecutors now have 60 days to file an indictment and can then take steps to secure Snowden's extradition from Hong Kong for a criminal trial in the United States, the newspaper reported.

The United States and Hong Kong have "excellent cooperation" and as a result of agreements, "there is an active extradition relationship between Hong Kong and the United States," a U.S. law enforcement official told Reuters.

Since the United States and Hong Kong signed an extradition treaty in 1998, scores of Americans have been sent back home to face trial. However, the process can take years, lawyers say.

Under Hong Kong's extradition process, a request would first go to Hong Kong's chief executive. A magistrate would issue a formal warrant for Snowden's arrest if the chief executive agrees the case should proceed.

Simon Young, a law professor at the University of Hong Kong, said the first charge of theft against Snowden might find an equivalent charge in Hong Kong, needed to allow extradition proceedings to move forward, but the unauthorized communication and willful communication charges may be sticking points that lead to litigation and dispute in the courts.

What ever the Hong Kong courts decide could be vetoed by the territory's leader or Beijing on foreign affairs or defense grounds.

An Icelandic businessman linked to the anti-secrecy group WikiLeaks said on Thursday he had readied a private plane in China to fly Snowden to Iceland if Iceland's government would grant asylum.

Iceland refused on Friday to say whether it would grant asylum to Snowden.

(Additional reporting by James Pomfret, Venus Wu and Grace Li in HONG KONG; Editing by Warren Strobel, Peter Cooney and Neil Fullick)

Source: http://news.yahoo.com/u-files-espionage-charges-against-snowden-over-leaks-015108216.html

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বৃহস্পতিবার, ২০ জুন, ২০১৩

Simple and inexpensive process to make a material for CO2 adsorption

June 19, 2013 ? Researchers from Ulsan National Institute of Science and Technology (UNIST), S. Korea, developed a novel, simple method to synthesize hierarchically nanoporous frameworks of nanocrystalline metal oxides such as magnesia and ceria by the thermal conversion of well-designed metal-organic frameworks (MOFs).

The novel material developed by the UNIST research team has exceptionally high CO2 adsorption capacity which could pave the way to save Earth from CO2 pollution.

Nanoporous materials consist of organic or inorganic frameworks with a regular, porous structure. Because of their uniform pore sizes they have the property of letting only certain substances pass through, while blocking others. Nanoporous metal oxide materials are ubiquitous in materials science because of their numerous potential applications in various areas, including adsorption, catalysis, energy conversion and storage, optoelectronics, and drug delivery. While synthetic strategies for the preparation of siliceous nanoporous materials are well-established, non-siliceous metal oxide-based nanoporous materials still present challenges.

A description of the new research was published (Web) on May 7 in the Journal of the American Chemical Society.?

Leading the research team is married couple Hoi Ri Moon and Sang Hoon Joo, both assistant professors at UNIST, who contributed to synthesizing nanoporous metal oxides and characterizing nanoporous materials respectively. Fellow authors include Tae Kyung Kim, Kyung Joo Lee, Jae Yeong Cheon and Jae Hwa Lee from UNIST.

The UNIST research team used MOFs based on aliphatic carboxylate ligands which are thermally less stable and much more labile than aromatic ligands. Specifically, the aliphatic ligand is adipic acid, which is a precursor for the production of nylon, and thus very important from an industrial perspective and low in price. During the thermolysis of a crystalline, aliphatic carboxylate ligand-based MOF (aph-MOF), the ligands were transformed into organic moieties via chemical decomposition, and were confined as vesicles in the solids.

The organic vesicles acted as self-generated porogens, which later were converted into nanopores; they also prevented aggregation of the metal oxide nanocrystals. Finally, upon thermolysis at higher temperature, the confined organic moieties evaporated, generating highly porous nanostructures comprising nanocrystalline metal oxides. The control of the retention time and the evaporation rate of the organic moieties in the host solid were critical for the successful formation of nanoporous metal oxides with nanocrystalline frameworks. The thermal treatments converted the Mg-aph-MOF into 3-dimensionally nanoporous MgO frameworks instead of discrete MgO nanoparticles embedded in a carbon matrix. Significantly, nanoporous MgO exhibited exceptional CO2 adsorption capacity (9.2 wt %) under conditions mimicking flue gas.

"I believe MOF-driven strategy can be expanded to other nanoporous monometallic and multimetallic oxides with a multitude of potential applications, especially for energy-related materials" said Prof. Moon. "Because of its high CO2 adsorption capacity, it will open a new way for environmental solutions."

"Various metal oxides converted from well-designed MOFs are being studied as fuel cell catalysts, also" said Prof. Joo, explaining his future research plan.

This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_environment/~3/EAQ-re4SiIM/130619161552.htm

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বৃহস্পতিবার, ১৩ জুন, ২০১৩

Long-distance cross-country skiers at increased risk of heart rhythm disturbances

June 11, 2013 ? Cross-country skiers who take part in one of the world's most challenging ski races, the 90 km Vasaloppet in Sweden, are at increased risk of developing arrhythmia -- problems with the rate or rhythm of their heart beat -- according to a study of nearly 53,000 race participants published online today (Wednesday) in the European Heart Journal.

The risk of developing atrial fibrillation (an irregular or abnormally fast heart beat) or bradyarrhythmias (a heart beat that is too slow) was greater among skiers who completed a higher number of races and with a faster finishing time relative to other participants.

Dr Kasper Andersen, a cardiologist at Uppsala University Hospital (Uppsala, Sweden), said: "We found that those who completed five or more races in a period of ten years, had a 30% higher risk of developing any arrhythmia than those who did one race only. Similarly, skiers who had the fastest finishing time relative to the other participants also had a 30% higher risk of developing any arrhythmia in subsequent years."

Dr Andersen and his colleagues identified 52,755 cross-country skiers who had completed the Vasaloppet between 1989-1998, and followed them through to 2005 [2]. During this follow-up period, 919 participants experienced some form of arrhythmia (1.74% of the total number of participants).

Dr Andersen said the study was important because, although there have been other studies looking at the effects of endurance exercise on various cardiovascular problems such as ischemic heart disease and stroke, there have been only a few, smaller studies of its effect on heart rhythm disturbances, and they have tended to look at people who are less physically active, or compared very sedentary people with those who were very active.

"The present study investigates the higher end of the physical activity level scale and shows how very high physical activity level affects risk of arrhythmias. The skiers in our study are as a group healthier than the general population. We have previously shown that besides higher leisure time physical activity, the participants in Vasaloppet smoke less, have lower fat and higher fibre consumption and better physical and mental health than the general population. Actually the participants have about half the mortality than the general population. This is probably not only because of the training level of the participants, but also because the participants need to be healthy to even consider participating in the race," he said.

The researchers used the number of finished races and the finishing time as measures of the participants' duration and intensity of physical exercise. They divided the finishing times into four groups, representing percentages of the winning time that year, where the fastest finishing time is a 100% and the slowest times more than 240%. Similarly, the number of races each person completed was categorised into four groups: one race, two races, three to four races, and five or more races.

After adjusting for confounding factors such as age, education and occupational status, the researchers found that not only was there a 30% increased risk of any arrhythmia with the highest number of races completed and the fastest finishing time, but also the risk increased by 10% between each category for the number of races completed, i.e. there was a 10% increased risk from the least exposed group of participants (those who completed only one race) to the next group (two races), another 10% increase in risk to the next group (three-four races) and another 10% to the most exposed group (five or more races).

There was a similar, but statistically non-significant trend in increased risk between each category for the finishing times, with a 6% increased risk between the slowest finishing times and the next group.

"These findings suggest there is a dose-response relationship: the more races skiers complete and the faster they go, the greater their risk of subsequently developing arrhythmia," said Dr Andersen. "However, it is important to stress that this study does not show that the exercise causes arrhythmias, only that it is associated with an increased risk."

When they looked at the different types of arrhythmia, the researchers found that the most frequent was atrial fibrillation, which occurred in 681 skiers. After adjusting for age, education and occupation, there was a 29% increased risk of AF among skiers completing five or more races compared to those completing only one; there was a 20% higher incidence of AF for those with the fastest finishing times compared to the slowest, although this finding was not statistically significant.

Bradyarrhythmia occurred in 119 skiers. After adjusting for age, education and occupation, the risk more than doubled (110% increase) among those who completed five or more races compared with those who completed one. There was a tendency for the risk to increase with faster finishing times (85% increased risk between the slowest and fastest), but this finding was not statistically significant.

"It is important to emphasise that numerous studies have shown that exercise protects against heart disease and numerous other diseases," said Dr Andersen. "Our findings should not deter people from exercising, especially as we did not find any increased incidence of arrhythmias leading to sudden death. We have shown previously that Vasaloppet participants are less likely to die during the follow-up period than the general population and that mortality decreases with increasing numbers of races. This has also been shown in a Dutch long-distance skating event. Therefore, we believe that it is generally safe to prepare for and participate in the Vasaloppet races." [3]

Notes:

[1] The Vasoloppet is the world's oldest, longest, and largest cross-country skiing race.

[2] "Mortality amongst participants in Vasaloppet: a classical long-distance ski race in Sweden," by B,Y. Farahmand, A. Ahlbom, O. Ekblom, B. Ekblom, U. H?llmarker, D. Aronson, G.P. Brobert. Journal of Internal Medicine 2003 March; 253(3): 276-83.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/~3/DmuiWzmU440/130611204527.htm

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রবিবার, ২ জুন, ২০১৩

4 firefighters killed in Houston motel fire

HOUSTON (AP) ? Four firefighters searching for people they thought might be trapped in a blazing Houston motel and restaurant Friday were killed when the part of the structure collapsed and ensnared them, authorities said.

At least five other firefighters were hospitalized in the blaze that became the deadliest in the 118-year history of the Houston Fire Department.

Flames were shooting from the roof of the Southwest Inn, along one of Houston's most heavily traveled freeways, U.S. Highway 59, and black smoke was blanketing the area as firefighters tried to extinguish the fire.

Three firefighters were killed at the scene, while the fourth died at a hospital, according to the mayor's office and a medical examiner. Five other people were injured and were hospitalized for treatment of chest pains or leg injuries.

"We took the highest amount of risk possible because we thought we had civilians in the structure," Fire Chief Terry Garrison said. "The structure collapsed and our members who were trying to save lives were lost."

Garrison said everyone else has since been accounted for. A cause of the blaze hasn't yet been determined.

The loss of life is the single worst in the history of the department, which had counted 64 firefighters lost since the city began paying firefighters in 1895. Twice previously, two firefighters were killed in a single fire, in 1953 and most recently in 2000. Three firefighters died in 1929 when a train slammed broadside into their engine.

"Unfortunately, the building had much more fire in it than we originally thought," Garrison said. "We do know there was a collapse and it caused our firefighters to get trapped."

When a flag-draped body was removed from the smoldering remains around 4 p.m., some four hours after the blaze broke out, firefighters ? working in swirling winds, steamy humidity and temperatures exceeding 90 degrees ? paused and saluted. A procession of ambulances, under police motorcycle escort, left the scene about 90 minutes later and made a ceremonial drive past the fallen firefighters' station, by then draped in black.

"We will provide appropriate services to our fallen firefighters and full honors, but there is nothing we can do that will heal the hurt that we all feel today," Mayor Annise Parker said. "I ask for every Houstonian to offer their prayers to the families of these fallen firefighters, and also to think about what the job of firefighter is and the dangers they face every day."

The fire department identified the dead firefighters as Capt. Matthew Renaud, 35, an 11-year veteran of the department; Engineer Operator Robert Bebee, 41, who joined the department almost 12 years ago; Firefighter Robert Garner, 29, who joined the department 12? years ago; and Probationary Firefighter Anne Sullivan, 24, who graduated from the department's training academy in April.

Jeff Caynon, president of the Houston Professional Fire Fighters Association, said the victims included three men and one woman.

"Houston firefighters mourn the loss of our three brothers and our sister and will forever honor their sacrifices," Caynon said. "This tragedy underscores the inherent dangers of our?profession."

Officials said the five injured firefighters likely would remain hospitalized for at least the night.

The blaze broke out just after noon at a restaurant and bar at the motel, then quickly spread to the section of the building housing the motel. About 150 firefighters responded and were able to get it under control within about two hours.

Front desk clerk Martha Lopez told the Houston Chronicle that a restaurant employee ran into the hotel saying a fire had started in the restaurant. The two began knocking on doors and windows telling guests to get out of the hotel. Lopez had 45 registered guests at the time.

Sammy Sewell, who had been staying at the hotel, said he walked out of his room and heard yelling. He said he turned a corner, saw three women screaming and running at him down a hallway. Then he heard three blasts.

"Next thing you know, it was 'boom!' It scared the crap out of me. I mean, it sounded like a cannon going off. That's how loud it was," Sewell told the newspaper. "I could have sworn it picked this building up and put it back down."

Source: http://news.yahoo.com/4-firefighters-killed-houston-motel-fire-220422732.html

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