An off-road race in southern California's Mojave Desert became a scene of horror over the weekend when a truck crashed into a crowd of spectators along the roadside, killing eight people, authorities said Sunday. The crash at the Saturday-night race left six people dead at the scene, said Tim Franke of the San Bernardino County Fire Department. The California Highway Patrol said Sunday the final death toll was eight. Four more were taken to hospitals by air in serious nike dunkcondition, while five others suffered minor to moderate injuries. The 200-mile race was part of an amateur series on aair force shoes course in the Lucerne Valley area of San Bernardino County, east of Los Angeles, Franke said. Vince Dimiao, a driver who was running just ahead of the air forcetruck that crashed, said the races are often run at night due to the extreme heat. He said officials initially halted the race for an hour due to the crash, then canceled it completely when the scope of the "carnage" became known. The race's sanctioning body, Mojave Desert Racing, Nike yeezyurges spectators to stay back 100 feet from the 50-mile course -- "But as you can tell, there are no delineations to where the track begins and where the track ends at this point," said Joaquin Zubieta, a California Highway Patrol spokesman. Dimiao said there are few restrictions on spectators, and Larry Webster, automotive editor for Popular Mechanics magazine, said few such races remain "precisely for this problem." "It's just very difficult to control the spectators," Webster told CNN. "You can give all the warnings you want, but at the end of the day, they're out there, they're on their own and they do what they want." But Rich Minga, a former off-road racing champ,Jordan 1 defended the sport on Sunday. "This sport's been safe throughout the years," he told CNN. "We have a wonderful track record -- it's been a great, great form of family entertainment." Minga said it was "quite shocking" how close the spectators Nike Dunk Shoesat Saturday's Lucerne Valley race were to the course, but acknowledged that fans frequently gather at points "where the cars might be apt to do something more exciting." Minga said he supported an investigation of theJordan 3 incident "so we could put more safety measures and keep it a little bit safer." Jonathan Davy, who attended Saturday's deadly race and captured the accident on video, said he sensed the danger even before the crash. "They have barricades up... to hold the fans back and Jordan 2the spectators and it still doesn't control the situation with the fans because they want to get as close as possible to what's going on," Davy told CNN. "It's really intense -- everybody's going 'Go faster, go faster, go faster!' and a lot of people hit these jumps and get air and everyone cheers and it's just crazy." "Even for me to be right there filming was very dumb," he said. "(I) was just in the moment." Davy said it was his first off-road race. "What seemed to be like a great day... something I had never been to before, just turned tragic," he said. "It 's forever going to be in my head. I couldn't sleep last night. I got chills right now just thinking about it." Nike Air Max Shoes Air Max Air Max shoes Nike Shox Shoes air shox air shox shoes Nike Basketball Shoes Nike Air Force Shoes

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Meteor shower August 2010 peak comes early Friday. Emanating from the constellation Perseid, the meteor shower could yield sightings in some locations of up to 75 meteors an hour. The annual Perseid meteor shower, one of the finestair jordan shows in August's night sky, is set to dazzle the bleary-eyed in the wee hours of Friday. If you live under very dark skies or can travel beyond the sky glow of urban America, you can expect to see up to 75 meteors an hour, astronomers suggest. If you're hardy enough to be on a mountaintop, the number could reach 108 meteors an hour. The best viewing locations will be in theair jordan shoes Northern Hemisphere, with Southern Hemisphere sky-watchers limited to perhaps 30 or 40 events an hour at the shower's peak. IN PICTURES: Meteor showers Of more than 364 meteor showers on the roster kept by the International Astronomical Union, the Perseids turn in the most reliably decent show of the bunch. (But not all 364 on the roster have been confirmed as independent meteor displays.) This year's Perseid show is poised to be Air Maxabove average. So give it up for 109P/Swift-Tuttle, the comet whose debris is responsible for the show. It swings around the sun once every 135 years, spewing dust and gas as it nears the sun and heats up. The comet's last pass was in 1992. In mid-July, Earth began moving into Swift-Tuttle’s stream of dust. The debris "is a very old stream that has been building for a long time and is a very dense concentration of dust," says Peter Jenniskens, a meteor researcher at the SETI Institute in Mountain View, Calif. Indeed, "if you look back at records air shoxfrom the Middle Ages, you can see that people in the Middle Ages were seeing the Perseid meteor shower," he says. Swift-Tuttle originated in the Oort cloud, a vast spherical cloud of frozen leftovers from the solar system's formation some 4.6 billion years ago. Roughly 160,000 years ago, as Swift-Tuttle was passing through to the inner solar system, Jupiter captured it, sort of. That event shrank the comet's orbit around the sun. ButNike Shox Shoes Jupiter's gravity was never able to draw Swift-Tuttle into its fold of truly short-period comets, which reappear on average every 20 years or less. Instead, the newcomer joined the likes of Halley's comet, which have orbital periods ranging from about 20 to 200 years. To be sure, Swift-Tuttle crosses Jupiter's orbit with each tour through the solar system, Mr. Jenniskens explains. But Swift-Tuttle is stealthy: Jupiter is never close enough to the comet during those passes to significantly alter its travel path. Each pass of the comet ever so slowly thickens Air Max shoesthe dust stream it leaves behind. This year's display is unlikely to match last year's, when the shower had three peaks – one of which topped 200 meteors an hour. But the 2010 event is benefiting from two conditions that promise to keep the display above average. First, it's happening during air shox shoesa new moon, which means faint meteors will not have to compete with moonlight for your attention. Second, Earth will be passing through a denser patch of Swift-Tuttle's dust stream than usual, according to William Cooke, who heads NASA's Meteroid Environment Office at the Marshall Spaceflight Center in Huntsville, Ala. The main dust stream got a slight stir from Saturn, and we're also running into a patch of material the comet off-loaded in 1479, Cooke explains. To get an idea of how the peak of the Perseids – and that ofNike Air Max Shoes many other meteor showers – could appear in your area, head over to the "Fluxtimator." Select the meteor shower, nearest major urban area, viewing conditions, and date, and the graph will automatically adjust itself to give you the peak viewing time at your location and how many "shooting stars" you may be able to see. One encouraging note, courtesy of the Fluxtimator: If you miss the show early Friday morning, plenty of meteors will still be visible at about the same times early Saturday morning. The meteors appear as though they are emerging from a patch of the sky containing the constellation Perseus – hence the name. That constellation is high enough in the night sky by midnight Thursday to begin the show. Nike Shox Shoes on sale air shox shoes on sale Nike Basketball Shoes on sale Nike Air Force Shoes on sale air force shoes on sale Nike Dunk Shoes on sale Vibram Five Fingers on sale MBT Shoes on sale

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JERUSALEM — The Israeli defense minister, Ehud Barak, said Tuesday that Israel’s leaders were aware of the possibility that the military interception of a flotilla bound for Gaza in late May could turn violent, although lower level military officials had said at the time that the commandos were expecting only passive resistance. An Israeli military investigation concluded last month that the anticipated level of violence used against the Israeli forces had been “underestimated.” Mr. Barak was testifying before an Israeli commission examining the bloody episode. The commission was led by a retired Supreme Court judge, fashion sunglassesJacob Turkel, and included two foreign observers. Eight Turks and an American-Turkish youth were killed aboard a Turkish ship, the Mavi Marmara, during clashes with the Israeli naval commandos who raided the ship, part of a six-vessel flotilla. Israel was determined to stop the flotilla from breaching its naval blockade of Gaza, the Palestinian coastal enclave controlled by the Islamic militant group Hamas. The raid stirred international outrage and severely damaged Israel’s relationship with Turkey, once a close regional ally. Mr. Barak said that Israel’s top ministers all voiced support for the operation at a meeting on May 26 after they were presented with the “essence” of the plan by the army chief of staff. The intelligence assessment, he said, was that there could be “a collision”new sunglasses and “friction.” During the May 26 meeting, Mr. Barak continued, ministers raised questions about what would happen in the case of fierce resistance — if, for example, a rocket-propelled grenade were fired at the Israeli forces. But Mr. Barak suggested that no in-depth discussion of those questions ensued. Testifying before the commission on Monday, Israel’s prime minister, Benjamin Netanyahu, said the discussion at the May 26 meeting focused on the expected media and diplomatic fallout from the operation, not the military aspects. Mr. Barak also said the discussion centered on the dilemma facing Israel, with the ministers knowing that any Armani Sunglassesinterception of the boats was bound to lead to a public relations showdown, but not wanting the blockade to be breached. Soon after the confrontation in international waters, Israeli military officials said that the naval commandos had been surprised by the level of resistance on board the Turkish boat, where, they said, activists attacked them with iron rods, clubs and knives. As one military spokesman had put it, “We had in mind a sit-down, a linking of arms.” Mr. Barak said that the army chief of staff had warned the ministers that taking over the flotilla would “not be easy,” Gucci Sunglassesbut that the military assured the politicians that it could be done.

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You might call it the college student’s first lesson in exploitation: paying $100 for a textbook, then getting a mere $12 when reselling to the campus bookstore at the end of the semester. College textbook prices rose about 6 percent, on average, every year — that’s twice the rate of inflation — from 1986 to 2004. And there’s nothing more infuriating then paying the sticker price on textbooks (well, with the exception of tuition itself), when many other books are available at a discount. The cost of buying the textbooks can easily add up to $1,000 a year or more. Thankfully, federal rules that went into effect in July may help ease the pain. Publishers can no longer bundle their textbooks with accompanying materials like workbooks, and they must reveal their prices to professors when making a sales pitch. Colleges, meanwhile, are now required to provide students with a list of assigned textbooks during course registration, which allows for more time for shopping before classes begin. That’s especially important now because there are Shox 309 NZ PUan increasing number of ways to save on books if you buy or rent them online. This Times article from last year provides a lot of helpful information. But we also spoke with Nicole Allen, textbook advocate at the Student Public Interest Research Groups, for some more tips: Free Books Google Books has scanned a lot of texts into its database, though you may not find everything you need — or, you may only have access to every 10th page, Ms. Allen said. Meanwhile, Project Gutenberg has taken out-of-copyright books in the public domain and scanned them into its library. “If you’re studying Jane Austen, you are not going to have an easy time following along with page numbers, but you can definitely get access to the text without paying for it,” she added. Want to download a copy to your computer, KindleShox Leather Air Cushion or iPhone? Head to ManyBooks.net. The use of so-called open source textbooks, offered by companies like FlatWorld Knowledge, is also on the rise. “Students who are assigned open source textbooks can usually download a copy for free, or they can buy a printed and bound version for $20 to $40,” Ms. Allen said. (Suggest it to your future professors.) ETextbooks Are you the type of student who is Shox NZ LineImagerycompletely at ease reading on your computer or iPad and won’t be tempted to print anything out? Then consider using eTextbooks, which are digital versions of textbooks that usually sell for about half the full retail price. CourseSmart.com, for instance, is a consortium Shox NZ Plating Hookof major textbook publishers that provides eTextbooks that allow students to highlight and take notes electronically. Printing, however, is limited to just 10 pages at a time. “We are finding that 75 percent of students still prefer print to digital,” Ms. Allen added. Renting… On Campus Some universities have started programs that allow students to rent their textbooks. Rent-A-Text, for instance, has teamed with 800 college bookstores. It says renting books for the semester costs about half the purchase price, while online purchases can be picked up in your college bookstore. (Note to highlighting fanatics: you won’t be penalized, as long as your markings are not “excessive.”) Online But you’ll also want to find out how those prices compare with renting online. Chegg.com has a reputation for being the Netflix of book rental companies — its used books are known for arriving in a bright orange box, and, more important, in good condition. Shipping starts at $3.99, and return shipping is free. There are a number of other online companiesShox NZ USD that rent books, including BookRenter.com and CampusBookRentals.com, which provide free shipping both ways. ECampus.com, meanwhile, rents, sells and buys back textbooks. Our colleague’s article also suggests Textbookrentals.com and Collegebookrenter.com. Buying Online… Campusbooks.com and Bigwords.com are similar to, say, Kayak.com or Expedia.com — they are search engines that scour sites for the best prices on buying new or used books. Campusbooks is simple to use, and the results are easy to compare. For instance, a recent query (search using the ISBN number) for a sociology textbook generated results that listed the lowest prices in each category: used, new, rentals, e-books, and international editions (those versions can be cheaper). New and used books can be found all Shox R2 Meshover the Web, including on Half.com, part of eBay, and Amazon.com. “Your best bet there is to just go to a search engine,” Ms. Allen said. Just keep in mind that buying used books online can be risky because you don’t know the true condition. Don’t forget to check for coupon codes. PromotionalCodes.com, CouponWinner.com, and PromoCodes.com, for instance, offer an entire category of discount codes for textbooks and eBooks, for various book providers and renters. Cutting Out the Middle Man … Some students have listed the books they haveShox R3 Electricity Embroidery available on Facebook, Ms. Allen said, or even Craigslist. The Student PIRGs also has its own book swapping Web site, which allows students to look up their university and post the books they have available, or look for the ones they need. Selling Your Books … You usually won’t get the best deal fromShox R3 Embossing your campus bookstore. But if the store knows it will need the same book the following semester, it could pay as much as 40 or 50 percent of the retail price, Ms. Allen said. Most of the large used booksellers will also buy them back. Campusbooks.com doesn’t purchase used books, but it has a neat search engine that lists who’s buying and how much they’re willing to pay. And if you’re feeling charitable, you can donate or sell your books to BetterWorldBooks.com, which raises money for literacy initiatives. Where have you found the best deals on college textbooks? Do you think it’s better to buy or rent? Please share your tips in the comment section. Nike Air Max Ltd 2 Nike Air Max Tn Nike Air Max Tn(Special Edition) Women Nike Air Max Ltd Women's Nike Air Max 90 Women's Nike Air Max Ltd 2 Nike Shox 2301 Large Hook Nike Shox 309 NZ Mesh

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U.S. stock investors poured into riskier assets at the start of the month, encouraged by better-than-expected manufacturing and construction spending data, as well as encouraging signs from European bank earnings and global manufacturing. The Dow Jones Industrial Average gained 207 points, or 2%, to 10672 with less than an hour to go in trading, with all of its components in the black. The strong start to August adds to a July that saw the Dow climb 7.1%, its biggest monthly gain since July 2009. Stocks were helped by a better-than-expected Air Max Structure Triax 91 LeatherJuly reading of the Institute for Supply Management's manufacturing index and an unexpected climb in June construction spending. The market had burst out the gate with triple-digit gains following stronger-than-expected quarterly reports from European banks that fueled a global rally. "We have markets pricing in the reality that the U.S. recovery is not going to be fantastic, but the global economy continues to do OK, and given that many of the companies in the broad indexes are big multinationals, it's not the end of the world," said Michael Church, president of Addison Capital. The Nasdaq Composite gained 1.9% to 2297. Air Max Structure Triax 91 Mesh The Standard & Poor's 500-share index jumped 2.2% to 1126. Those gains helped the two indexes climb back into the black for the year so far. Volumes, however, were relatively light, with 3.1 billion shares trading hands in New York Stock Exchange Composite volume. Companies with significant global exposure led the Dow's climb as confidence mounted in the overseas economic recovery. Alcoa jumped 4.7%, while DuPont gained 2.4%. Technology components climbed. Hewlett-Packard gained 3%, Cisco Systems rose 3.6% and Intel climbed 3%. Financials also strengthened, boosted by upbeat earnings from HSBC Holdings and BNP Paribas. Bank of America advanced 2.7% and J.P. Morgan Chase rose 3.3%. Investors said strong earnings from Europe were contributing to a rise not just in financials, but across the broad market. "You've got earnings numbers coming out that Nike Free 5.0 Iconfirm some of the information coming out of the European bank stress tests," said Brian Singer, chief investment officer at Singer Partners. "It confirms that there is perhaps less of a reason to be concerned about the financial sector." U.S. shares of HSBC, Europe's largest bank by market capitalization, jumped 5.3% after its first-half net profit more than doubled to $6.76 billion, as loan impairments and other provisions fell to their lowest level since the start of the financial crisis. American depositary shares of banking group BNP Paribas jumped 7.1% after posting a 31% surge in second-quarter profit, beating market expectations. Monday's bank earnings helped boost EuropeanNike Free 5.0 V4 markets. The Stoxx Europe 600 index gained 2.6%, while France's CAC-40 climbed 3%. The Hang Seng closed up 1.8% and the Shanghai Composite gained 1.8%, bucking a weaker-than-expected piece of manufacturing data. China's manufacturing activity expanded at the slowest pace in 17 months in July, a reflection that government tightening measures and growing uncertainty over global demand is weighing on the country's economic expansion. "From a global growth engine perspective, that's something I remain concerned about," said Alan Gayle, senior investment strategist with RidgeWorth Investments. Energy stocks jumped as crude-oil prices climbed above $81 a barrel and investors scurried toward riskier assets. Exxon Mobil rose 3.6% and Chevron gained 2.1%. Anadarko Petroleum jumped 7.4% after Western Gas Partners agreed to acquire Anadarko's natural-gas assets in northeastern Colorado in a deal valued at $498 million. Telecommunications stocks alsonike free shoes strengthened as Blackberry maker Research In Motion's decline boosted rivals. Research In Motion's shares slipped 0.4% after the United Arab Emirates said it would block the firm's BlackBerry services starting in October because of a dispute over the way the smartphone maker handles electronic data. Meanwhile, Sprint Nextel climbed 1.2%, AT&T gained 2.7% and Verizon advanced 1.8%. Federal Reserve Chairman Ben Bernanke said Monday while the U.S. economy continues to grow at a moderate pace, significant restraints remain on the recovery. Speaking at the 64th annual meeting of the Southern Legislative Conference, Mr. Bernanke said the U.S. had a "considerable way to go to achieve a full recovery in our economy, and many Americans are still grappling with unemployment, foreclosure and lost savings." Among stocks in focus, MetLife gained 0.7% after increasing by about $1 billion the amount it plans to raise in a share sale to fund its acquisition of American International Group's second-largest foreign life-insurance business. Managed-care provider Humana climbed 3.3%Nike Free 5.0 V2 after its second-quarter net income rose to $2.00 a share from $1.67 a share. The firm also raised its full-year earnings guidance. The dollar weakened against the euro and gained slightly on the yen. The euro approached the $1.32 level, trading recently at $1.3172, up from $1.3033 late Friday in New York. The U.S. Dollar Index, which tracks the U.S. currency against a basket of six others, fell 0.8%. Demand for safe-haven Treasurys fell, with the yield on the 10-year note rising to 2.96%. Gold futures were up modestly. Nike Air Max Shoes Air Max Air Max shoes Nike Shox Shoes air shox air shox shoes Nike Basketball Shoes Nike Air Force Shoes

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How much do your kindergarten teacher and classmates affect the rest of your life? Economists have generally thought that the answer was not much. Great teachers and early childhood programs can have a big short-term effect. But the impact tends to fade. By junior high and high school, children who had excellent early schooling do little better on tests than similar children who did not — which raises the demoralizing question of how much of a difference schools and teachers can make. There has always been one major caveat, however, to the research on the fade-out effect. It was based mainly on test scores, not on a broader set of measures, like a child’s health or eventual earnings. As Raj Chetty, a Harvard economist, says: “We don’t really care about test scores. We care about adult outcomes.” Early this year, Mr. Chetty and five other researchers set out to fill thisJordan 4 void. They examined the life paths of almost 12,000 children who had been part of a well-known education experiment in Tennessee in the 1980s. The children are now about 30, well started on their adult lives. On Tuesday, Mr. Chetty presented the findings — not yet peer-reviewed — at an academic conference in Cambridge, Mass. They’re fairly explosive. Just as in other studies, the Tennessee experiment found that some teachers were able to help students learn vastly more than other teachers. And just as in other studies, the effect largely disappeared by junior high, based on test scores. Yet when Mr. Chetty and his colleagues took another look at the students in adulthood, they discovered that the legacy of kindergarten had re-emerged. Students who had learned much more in kindergarten were more likely to go to college than students with otherwise similar backgrounds. Students who learned more were also less likely to become single parents. As adults, they were more likely to be saving for retirement. Perhaps most striking, they were earning more. All else equal, they were making about an extra $100 a year at age 27 Jordan 8for every percentile they had moved up the test-score distribution over the course of kindergarten. A student who went from average to the 60th percentile — a typical jump for a 5-year-old with a good teacher — could expect to make about $1,000 more a year at age 27 than a student who remained at the average. Over time, the effect seems to grow, too. The economists don’t pretend to know the exact causes. But it’s not hard Jordan 7to come up with plausible guesses. Good early education can impart skills that last a lifetime — patience, discipline, manners, perseverance. The tests that 5-year-olds take may pick up these skills, even if later multiple-choice tests do not. Now happens to be a particularly good time for a study like this.Jordan 9 With the economy still terribly weak, many people are understandably unsure about the value of education. They see that even college graduates have lost their jobs in the recession. Barely a week seems to go by without a newspaper or television station running a report suggesting that education is overrated. These stories quote liberal groups, like the Economic Policy Institute, that argue that an education can’t protect workers in today’s global economy. Or they quote conservatives, like Charles Murray and Ramesh Ponnuru, who suggest that people who haven’t graduated from college aren’t smart enough to do so. But the anti-education case usually relies on a combination of anecdotes and selective facts. In truth, the gap between the pay of college graduates and everyone else grew to a record last year, according to the Labor Department, and unemployment has risen far more for the less educated. This is not simply because smart people — people who would do well no matter what — tend to graduate from college. Education itself can make a difference. A long line of economic research, by Julie Berry Cullen, James Heckman, Philip Oreopoulos and many others, has found as much. The study by Mr. Chetty and his colleagues is the latest piece of evidence. ? The crucial problem the study had to solve was the old Jordan 10causation-correlation problem. Are children who do well on kindergarten tests destined to do better in life, based on who they are? Or are their teacher and classmates changing them? The Tennessee experiment, known as Project Star, offered a chance to answer these questions because it randomly assigned students to a kindergarten class. As a result, the classes had fairly similar socioeconomic mixes of students and could be expected to perform similarly on the tests given at the end of kindergarten. Yet they didn’t. Some classes did far better than others. The differences were too big to be explained by randomness. (Similarly, when the researchers looked at entering and exiting test scores in first, second and third grades, they found that some classes made much more progress than others.) Class size — which was the impetus of Project Star — evidently played some role. Classes with 13 to 17 students did better than classes with 22 to 25. Peers also seem to matter. In classes with a somewhat higher average socioeconomic status, all the students tended to do a little better. But neither of these factors came close to explainingJordan 11 the variation in class performance. So another cause seemed to be the explanation: teachers. Some are highly effective. Some are not. And the differences can affect Jordan 5students for years to come. When I asked Douglas Staiger, a Dartmouth economist who studies education, what he thought of the new paper, he called it fascinating and potentially important. “The worry has been that education didn’t translate into earnings,” Mr. Staiger said. “But this is telling us that it does and that the fade-out effect is misleading in some sense.” Mr. Chetty and his colleagues — one of whom, Emmanuel Saez, recently won the prize for the top research economist under the age of 40 — estimate that a standout kindergarten teacher is worth about $320,000 a year. That’s the present value of the additional money that a full class of students can expect to earn over their careers. This estimate doesn’t take into account social gains, like better health and less crime. Obviously, great kindergarten teachers are not going to start making $320,000 anytime Jordan 6 soon. Still, school administrators can do more than they’re doing. They can pay their best teachers more, as Pittsburgh soon will, and give them the support they deserve. Administrators can fire more of their worst teachers, as Michelle Rhee, the Washington schools chancellor, did last week. Schools can also make sure standardized tests are measuring real student skills and teacher quality, as teachers’ unions have urged. Given today’s budget pressures, finding the money for any new programs will be difficult. But that’s all the more reason to focus our scarce resources on investments whose benefits won’t simply fade away. Nike Shox Shoes on sale air shox shoes on sale Nike Basketball Shoes on sale Nike Air Force Shoes on sale air force shoes on sale Nike Dunk Shoes on sale Vibram Five Fingers on sale MBT Shoes on sale

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Vitamin D promises to be the most talked-about and written-about supplement of the decade. While studies continue to refine optimal blood levels and recommended dietary amounts, the fact remains that a huge part of the population — from robust newborns to the frail elderly, and many others in between — are deficient in this essential nutrient. If the findings of existing clinical trials hold up in future research, the potential consequences of this deficiency are likely to go far beyond inadequate bone development and excessive bone loss that can result in falls and fractures. Every tissue in the body, including the brain, heart, muscles and immune system, has receptors for vitamin D, meaning that this nutrient is needed at proper levels for these tissues to function well. Studies indicate that the effects of a vitamin D deficiency include an elevated risk of developing (and dying from) cancers of the colon, breast and prostate; high blood pressure and cardiovascular disease; osteoarthritis; and immune-system abnormalities that can result in infections and autoimmune disorders like multiple sclerosis, Type 1 diabetes and rheumatoid arthritis. Most people in the modern world have lifestyles that prevent them from acquiring the levels of vitamin D that evolution intended us to have. The sun’s ultraviolet-B rays absorbed through the skin are the body’s main source of this nutrient. Early humans evolved near the equator, where sun exposure is intense year round, and minimally clothed people spent most of the day outdoors. “As a species, we do not get as much sun exposure as we used to, and dietary sources of vitamin D are minimal,” Dr. Edward Giovannucci, nutrition researcher at the Harvard School of Public Health, wrote in The Archives of Internal Medicine. Previtamin D forms in sun-exposed skin, and 10 to 15 percent of the previtamin is immediately converted to vitamin D, the form found in supplements. Vitamin D, in turn, is changed in the liver to 25-hydroxyvitamin D, the main circulating form. Finally, the kidneys convert 25-hydroxyvitamin D into the nutrient’s biologically active form, 1,25-dihydroxyvitamin D, also known as vitamin D hormone. A person’s vitamin D level is measured Nike Air Jordan 17in the blood as 25-hydroxyvitamin D, considered the best indicator of sufficiency. A recent study showed that maximum bone density is achieved when the blood serum level of 25-hydroxyvitamin D reaches 40 nanograms per milliliter or more. “Throughout most of human evolution,” Dr. Giovannucci wrote, “when the vitamin D system was developing, the ‘natural’ level of 25-hydroxyvitamin D was probably around 50 nanograms per milliliter or higher. In modern societies, few people attain such high levels.” A Common Deficiency Although more foods today are supplemented with vitamin D, experts say it is rarely possible to consume adequate amounts through foods. The main dietary sources are wild-caught oily fish (salmon, mackerel, bluefish, and canned tuna) and fortified milk and baby formula, cereal and orange juice. People in colder regions form their year’sNike Air Jordan 4 supply of natural vitamin D in summer, when ultraviolet-B rays are most direct. But the less sun exposure, the darker a person’s skin and the more sunscreen used, the less previtamin D is formed and the lower the serum levels of the vitamin. People who are sun-phobic, babies who are exclusively breast-fed, the elderly and those living in nursing homes are particularly at risk of a serious vitamin D deficiency. Dr. Michael Holick of Boston University,Nike Air Jordan 22 a leading expert on vitamin D and author of “The Vitamin D Solution” (Penguin Press, 2010), said in an interview, “We want everyone to be above 30 nanograms per milliliter, but currently in the United States, Caucasians average 18 to 22 nanograms and African-Americans average 13 to 15 nanograms.” African-American women are 10 times as likely to have levels at or below 15 nanograms as white women, the third National Health and Nutrition Examination Survey found. Such low levels could account for the high incidence of several chronic diseases in this country, Dr. Holick maintains. For example, he said, in the Northeast, where sun exposure is reduced and vitamin D levels consequently are lower, cancer rates are higher than in the South. Likewise, rates of high blood pressure, heart disease, and prostate cancer are higher among dark-skinned Americans than among whites. The rising incidence of Type 1Kevin Durant shoes diabetes may be due, in part, to the current practice of protecting the young from sun exposure. When newborn infants in Finland were given 2,000 international units a day, Type 1 diabetes fell by 88 percent, Dr. Holick said. The current recommended intake ofNike Air Max 90 vitamin D, established by the Institute of Medicine, is 200 I.U. a day from birth to age 50 (including pregnant women); 400 for adults aged 50 to 70; and 600 for those older than 70. While a revision upward of these amounts is in the works, most experts expect it will err on the low side. Dr. Holick, among others, recommends a daily supplement of 1,000 to 2,000 units for all sun-deprived individuals, pregnant and lactating women, and adults older than 50. The American Academy of Pediatrics recommends that breast-fed infants receive a daily supplement of 400 units until they are weaned and consuming a quart or more each day of fortified milk or formula. Given appropriate sun exposure in Lebron James shoes summer, it is possible to meet the body’s yearlong need for vitamin D. But so many factors influence the rate of vitamin D formation in skin that it is difficult to establish a universal public health recommendation. Asked for a general recommendation, Dr. Holick suggests going outside in summer unprotected by sunscreen (except for the face, which should always be protected) wearing minimal clothing from 10 a.m. to 3 p.m. two or three times a week for 5 to 10 minutes. Slathering skin with sunscreen with an SPF of 30 will reduce exposure to ultraviolet-B rays by 95 to 98 percent. But if you make enough vitamin D in your skin in summer, it can meet the body’s needs for the rest of the year, Dr. Holick said. Can You Get Too Much? If acquired naturally through skin,Kobe Bryant Shoes the body’s supply of vitamin D has a built-in cutoff. When enough is made, further exposure to sunlight will destroy any excess. Not so when the source is an ingested supplement, which goes directly to the liver. Symptoms of vitamin D toxicity includeNike Air Max Tn nausea, vomiting, poor appetite, constipation, weakness and weight loss, as well as dangerous amounts of calcium that can result in kidney stones, confusion and abnormal heart rhythms. But both Dr. Giovannucci and Dr. Holick say it is very hard to reach such toxic levels. Healthy adults have taken 10,000 I.U. a day for six months or longer with no adverse effects. People with a serious vitamin D deficiency are often prescribed weekly doses of 50,000 units until the problem is corrected. To minimize the risk of any long-term toxicity, these experts recommend that adults take a daily supplement of 1,000 to 2,000 units. Nike Air Jordan 20 Nike Air Jordan 21 Nike Air Jordan 22 Nike Air Jordan 23 Nike Air Jordan 1.5 Nike Air Jordan 2.5 Nike Air Jordan 3.5 Nike Air Jordan 6 ring

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WITH its Renaissance treasures and centuries-old stately palazzi, Florence is sometimes treated like a living museum rather than a vibrant city with contemporary culture. That myth is harder to sustain these days, thanks in part to Matteo Renzi, the city’s 35-year-old mayor, who was elected last year with promises to stir up the Tuscan capital. Evidence of a more youthful and revitalized Florence is everywhere. Dilapidated piazzas have been refreshed, contemporary art galleries have sprung up, and old-school palazzi have been turned into trendy restaurants. Traffic has also improved, making the city even more pleasant to navigate. Friday 4 p.m. 1) DECONGESTED DUOMO Yes, that Duomo. As one of Mr. Renzi’s first moves as mayor, Florence’s symbolic heart is now a pedestrian-only piazza. Without buses, taxis and cars jamming up the street, it is a pleasant and totally new experience, even as it remains one of the city’s most popular attractions. Don’t miss the stunningly detailed bronze doors of the Baptistery. Another landmark that’s received the car-free touch is the piazza of Santa Maria Novella. With the scaffolding down and parked vehicles replaced by strolling Italian families, the restored black-and-white marble facade of the basilica is all the more striking, as is the thriving neighborhood around it. 5 p.m. 2) MODERN MAESTROS Florence may be known for old masters, but its contemporary art scene is heating up. For Gallery (Via dei Fossi, 45r; 39-055-094-6444; forgallery.it) is a sleek space that specializes in photography including portraits and cityscapes. Biagiotti Arte Contemporanea (Via delle Belle Donne 39r; 39-055-214-757; artbiagiotti.com) focuses principally on young Italian artists. And the new outpost of Galleria Alessandro Bagnai (Via del Sole 15r; 39-055-680-2066; galleriabagnai.it) represents better-known names like Sandro Chia and Mario Schifano. Photo buffs will also want to check out the Museo Nazionale Alinari della Fotografia (Piazza Santa Maria Novella 14a; 39-055-216-310; www.mnaf.it), when it is expected to reopen on Sept. 8, and Palazzo Strozzi (Piazza Strozzi; 39-055-277-6461; palazzostrozzi.org; tickets: 10 euros, about $12 at $1.24 to the euro) for major retrospectives. 8 p.m. 3) A TUSCAN SUPPER Florence cherishes its classics, and new restaurants are few and far between. That may explain the instant popularity of Osteria Tornabuoni (Via dei Corsi 5r; 39-055-277-3502; osteriatornabuoni.it). Opened last May by Silvio Ursini (who also owns the stylish Obikà mozzarella bars that are popping up globally), the Tuscan-centric restaurant occupies a historic palazzo on a fashionable shopping street. Unpretentious dishes include bread maccheroni with lamb ragù and risotto with purple artichokes. It also features a well-priced selection of Tuscan wines, including a 2007 Montevertine Super Tuscan. The knowledgeable sommelier (and influential wine blogger) Andrea Gori will happily lead you through the offerings. Entrees run from 17 euros, pastas from 11. Saturday 11 a.m. 4) PRETTY PLEASE Making a bella figura (a good impression) is an Nike Air Force Shoesimportant Italian custom, both in terms of how you look and how you act. Do your part with a facial at the new spa at the Four Seasons Hotel Firenze (Borgo Pinti 99; 39-055-26-261; fourseasons.com/florence). It’s one of the only places in town that features Officina Profumo-Farmacia di Santa Maria Novella, the apothecary potions concocted by monks in the 13th century. And the small white marble spa also looks onto one of the city’s largest private gardens with peaceful green lawns, towering trees and winding pathways that lead past tucked away statues. It’s a great way to enjoy the city’s luxurious new arrival without the price tag of a room — a 20-minute back and neck massage costs 80 euros, room rates from 500 euros. 1 p.m. 5) PASS THE PANINO Custom-made panini sandwiches were once the norm inair force Italy, until the generic, plastic-wrapped variety took over. A new deli and wine bar near the Ponte Vecchio called ‘Ino (Via dei Georgofili 3r-7r; 39-055-219-208; ino-firenze.com) is seeking to bring that lunchtime pleasure back, one fresh focaccia at a time. Choose from 20-plus cheeses including pecorino and gorgonzola, and add some mortadella and salami. Paninis from 5 euros. 3 p.m. 6) LEFT BANK Cross the Arno River to the less-traveled left bank air force shoesfor authentic Florentine treasures. Busatti (Lungarno Torrigiani, 11-R; 39-055-263-8516; busattifirenze.com) is a small family-owned shop that carries delicate striped linens and embroidered duvets that have been hand-woven in the Tuscan town of Anghiari since 1842 (from 10 euros for a kitchen towel). Britta in Bicicletta (Lungarno Torrigiani 5/r; 39-055-246-6703; brittainbicicletta.com) is a jewel box of a children’s clothing shop, with its own line of cotton dresses in pretty fabrics and soft-as-butter infant essentials (from 25 euros). Meanwhile, Lorenzo Villoresi does a line of Florentine perfumes (from 65 euros) and candles (from 18 euros) that make good presents — and the view from the shop is lovely, too (Via de Bardi, 14; 39-055-234-1187; www.lorenzovilloresi.it). 4 p.m. 7) A FRESH VIEW After a half-century of neglect, the 10-acre VillaNike Dunk Shoes Bardini Gardens (Via de Bardi 1r; 39-055-294-883,.bardinipeyron.it) reopened in 2005, and well-heeled Florentines now stroll its terraced flower and vegetable gardens. The sweeping hilltop views offer spectacular views of the Duomo, Santa Croce and Fiesole. If there’s time to linger, pop into the Roberto Capucci Museum in the 17th-century Villa Bardini, which recently opened as the impressive fashion archive of the Roman designer (Villa Bardini, 2, Costa San Giorgio; 39-055-200-662-09; www.fondazionerobertocapucci.com). 8 p.m. 8) PRIZED BEEF Let the rest of the world have their grass-fed,nike dunk organic burgers. At Lungarno 23 (Lungarno Torrigiani, 23; 39-055-234-5957; lungarno23.it), a stylish restaurant that opened this spring, the owners have their own cattle farm in the Tuscan town of Sinalunga, where they raise Chianina — an ancient Italian breed known for its white hair, long limbs and marbled meat. The Chianina burgers (12 euros) are served on a sesame bun with lettuce, onions, tomatoes and ketchup. Purists may prefer the steak at Trattoria Sostanza (Via del Porcellana 25r; 39-055-212-691 ), a century-old institution known for its succulent Chianina T-bones (24 euros for a half kilo). 10 p.m. 9) LOUNGE FEVER Summer night life in Florence is centered around Vibram Five Fingerssmall aperitivo bars that come alive after dinner, spilling into the street. A new hot spot is Volume (Piazza Santo Spirito, 5r; 39-055-238-1460), a bar that opened in April in a former wood workshop. On balmy nights the bar is filled with a varied yet beautiful crowd, from fashion editors to exchange students, who anchor one corner of the festive Piazza Santo Spirito. Sunday 10 a.m. 10) PARADISE FOUND In a town of blockbuster art shows, seek outAir yeezy smaller gems. Among the unsung works is Benozzo Gozzoli’s “Procession of the Magi,” which was recently restored to its Technicolor glory at the Palazzo Medici-Riccardi (Via Camillo Cavour, 1; 39-055-2760-340; www.palazzo-medici.it; 7 euros). Commissioned by Cosimo de’ Medici in 1459, the fresco turned the chapel into a vision of paradise, with cheetahs and birds, as imagined by the newly emerging merchant class. Book ahead — the intimate space is open only to small groups. Noon 11) URBAN TAN Taking a page from Paris and Berlin, Air Jordan 1 an urban beach has washed up on the Arno River by San Niccolò, a wide swath of sand studded with beach umbrellas, deck chairs and bikini-clad Florentines. Unlike the beaches in those other cities, however, the sand here is a natural phenomenon, an ideal spot for a sun-drenched espresso while watching the city’s younger set take their city back. IF YOU GO Flights to Florence from New York require a connecting flight. According to a recent Web search, Alitalia flies from Kennedy Airport to Florence, connecting through Rome, starting at $1,590, for travel in August. Or you can fly to Rome and take the Eurostar (raileurope.com) to Florence. Make your way around town by foot or cab. Opened in 2003, J.K. Place Firenze (Piazza di Santa Maria Novella 7; 39-055-264-5181; jkplace.com) has 20 small but stylish rooms on Santa Maria Novella piazza, with the Duomo and the Ponte Vecchio five minutes away on foot. Rooms start at 250 euros ($314) including soft drinks, Wi-Fi, breakfast and taxes. Il Salviatino (Via del Salviatino 21, 39-055-904-11; salviatino.com) opened in fall 2009 with 45 rooms in a restored villa with an 11-acre garden, spa and terrace overlooking the city. Rooms from 440 euros. For a more affordable option, Residence Hilda (Via dei Servi, 40; 39-055-288-021; www.residencehilda.com), behind the Duomo, has 12 recently refurbished suites, all with kitchens. Rates start at 230 euros. Nike Shox R3 Magic Button Nike Shox R3 Ordinary Nike Shox R4 Fangle Nike Shox R4 Kid Nike Shox R4 Large Hook Nike Shox R4 Line Nike Shox R4 Men Shoes Nike Shox R4 Mesh

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NAIROBI, Kenya - African Union peacekeepers are indiscriminately shelling residential areas of Somalia's capital, according to internal AU reports reviewed by The Associated Press. The evaluation was made months before Somali militants claimed they carried out twin bombings that killed 76 people in Uganda last week - attacks the insurgents said were to avenge civilian deaths caused by AU soldiers. The series of reports, stamped for "Internal Use Only" and issued from April to June, said that if indiscriminate shelling continues, the AU mission will lose the support of the Somali people. Wholesale Coach SunglassesCivilians have suffered through nearly two decades of violent chaos in the Somali capital, Mogadishu, since the country's government was overthrown in 1991. Al-Qaida-linked al-Shabab militants now control large portions of the capital, and much of the country's southern and central regions. The AU force, known as AMISOM, has long been criticized by human rights groups for civilian deaths in Somalia, and the internal reports seen by AP show the mission itself is aware of the problem. In a report issued in May, the AU expressed concern that the force "may not be adequately giving the issue of indiscriminate shelling of civilians the urgent attention it deserves." A similar report in June said AMISOM "continues to underestimate the importance of being seen to address this critical issue." An AU spokesman, Maj. Barigye Bahoku, denied Wednesday that AU forces kill civilians, saying the deaths are caused by extremists who attack government and AU troops. "Too many civilians are caught in the crossfire, but the responsibility for this lies on the destructive extremists who unleash reckless attacks on (government) and AMISOM forces," Bahoku said. Al-Shabab, the Muslim militant group that claimed responsibility for the July 11 attacks on a Kampala rugby club Wholesale ED Hardy Sunglassesand restaurant packed with people watching the World Cup final on television, had long threatened to strike outside of Somalia's borders. Uganda is one of two African nations that contribute troops to the more than 5,000-member AU force in Somalia. "We warned Uganda not to deploy troops to Somalia; they ignored us," said Sheik Ali Mohamud Rage, al-Shabab's spokesman. "We warned them to stop massacring our people, and they ignored that. The explosions in Kampala were only a minor message to them. We will target them everywhere if Uganda does not withdraw from our land." He said Burundi, which also contributes to the AU force, could also face attacks. Shelling is a near-daily occurrence in Somalia's capital, and international rights groups have decried the deadly impact on civilians. Human Rights Watch said in a report in April that major parties to the conflict have carried out "numerous indiscriminate attacks ... with terrible consequences for the civilian population." The report accused Somali government troops and African peacekeepers of lobbing mortar rounds toward areas considered the source of incoming fire, or "simply bombarding areas such as Bakara market that are opposition strongholds." Wholesale Ray Ban Sunglasses"Such attacks, while of limited military value, cause considerable loss of civilian life and property damage," Human Rights Watch said. Somalia's former state minister for defense, Yusuf Mohamed Siyad, told the AP he once witnessed more than 60 artillery shells, missiles and mortars fired into residential areas and the Bakara market in response to three mortars fired by militants. Siyad resigned from his position last month because he said the government had failed to deliver either security or services to the public. Earlier this month, after an artillery shell killed families who sought shelter in a building in another popular market, the head of Mogadishu's ambulance service said he believed the round was too strong to have been fired by Islamist militants. "It was so strong that it obliterated the building," Ali Muse said. "The scene was scary. Human flesh was scattered everywhere."

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