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Lambert Adolphe Jacques Quatelet (1796-1874) is a celebrated Belgian mathematician Michael Lorenzen Reds Jersey , astronomer, statistician and sociologist, famous for his statistical prowess and his widely used "Quatelet Index" or the body mass index. He graduated out of University of Ghent with a doctorate in mathematics and then set out to study the new field of "social sciences" which only included Astronomy at the time. Somewhere around 1830 Ken Griffey Reds Jersey , Quatelet emerged as a firm believer in the influence of statistics and probability in the day-to-day human affairs. He found it possible to gather information about the regular day-to-day life of any cross-section of the population using the same statistical techniques he was so well versed in. The body mass index (BMI) is the relationship between the height and weight of an individual, which directly correlates to the body fat contained within the body and explains the degree of health risk the person has. It is measured as BMI = body weight in kilograms divided by height in meters squared. The Body Mass Index is quite a useful statistic and has been in use over the years all over the world. It determines the degree of healthiness one enjoys. The BMI assesses your weight in relation to your height. A healthy BMI for an adult generally falls between 18.5 and 25. If the BMI is more than 25, the individuals are probably classified as overweight Johnny Bench Reds Jersey , and if it is 30 or higher, one is considered obese, and 40 or higher Joey Votto Reds Jersey , extremely obese.


SAN FRANCISCO, Oct. 31 (Xinhua) -- A new study blames high temperatures, not the low precipitation characteristic of past "snow drought" years, for the record low snowpack levels last year in the western-most region of the continental United States.


More than 80 percent of the snow measurement sites in the region, comprised of California, Oregon, Washington, western Nevada and western Idaho, experienced record low snowpack levels that were a result of much warmer-than-average temperatures in 2015, said Philip Mote, lead author of the study published on Monday in the journal Geophysical Research Letters.


While most of the previous records were set in 1977, when there just wasn't enough moisture to generate snow, the study suggests that greenhouse gases were a major contributor to the high temperatures, which doesn't bode well for the future.


California has been in a drought since 2011 and this multi-year period of low precipitation, by some measures, is the state's most severe in 500 years. In 2015, higher temperatures combined with low precipitation, leading to one of its lowest snowpack levels on record.


Oregon and Washington experienced much higher-than-average temperatures during the 2014-15 winter but were not as dry overall as California. Oregon was 6.5 degrees Fahrenheit warmer than average during that period.


While a total of 454 sites in the western United States, or 81 percent of the total sites, recorded record-low snowpack levels that year, the April 1 value for 111 of the sites was zero for the first time ever, essentially indicating that there was no snow left; the overall snowpack level on April 1 in California and Oregon was 90 percent below average.


"The 2015 snowpack season was an extreme year," said Mote, director of the Oregon Climate Change Research Institute at Oregon State University (OSU). "But because of the increasing influence of greenhouse gases, years like this may become commonplace over the next few decades."


Impacts of the snow drought in California, Oregon and Washington led the governors of those states to order reductions in water use and saw many ski areas, particularly those in lower elevations, struggle.


"The story of 2015 was really the exceptional warmth," said Dennis Lettenmaier, professor of geography at the University of California, Los Angeles, and co-author of the study.


"Historically, droughts in the West have mostly been associated with dry winters, and only secondarily with warmth. But 2015 was different. The primary driver of the record low snowpacks was the warm winter, especially in California, but in Oregon and Washington as well."


VALLETTA, March 23 (Xinhua) -- Two cruise companies, whose passengers were among the victims of the terrorist attack at the Bardo Museum in Tunis last week Joe Morgan Reds Jersey , have suspended all remaining Tunisian calls and have chosen alternative destinations including Malta in the interest of guest and crew member safety, recent reports have said.


MSC cruises, which confirmed that 12 of its passengers were killed in the shooting at the Bardo Museum Homer Bailey Reds Jersey , said two of its ships would call at Malta.


In a statement, MSC Cruises executive chairman Pierfrancesco Vago said: "Tunisia can little afford to be considered a no-go zone at this time, but regrettably that is how tourists will now see it."


The Genoa-based Costa Crociere Drew Storen Reds Jersey , which said five passengers in the Costa Fascinosa were amongst the victims of the horrific attack in Tunis, also suspended calls in Tunisia for the upcoming cruises in 2015.


The company's three cruise ships will instead call at Malta, Trapani (Italy) Devin Mesoraco Reds Jersey , Barcelona (Spain) as well as Tarragona (Spain).


President of Costa Crociere Neil Palomba said in a statement: "What happened in Tunis represents an attack to the values of friendship between cultures in which we have always believed. Our deepest sympathy and our condolences go to the victims and their families."


Located close to the coastlines of North Africa, the Maltese archipelago is 388 km from Tunis, the capital of Tunisia.


North Korea’s foreign minister said on Monday US President Donald Trump had declared war on North Korea and that Pyongyang reserved the right to take countermeasures Dave Concepcion Reds Jersey , including shooting down U.S. bombers even if they are not in its air space.


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