Johnson, Ben

Figure 12.12 Coupled SEC-RPLC separation of Plioflex rubber stock (a) SEC (b) RPLC ti ace of fraction 1, Wingstay 100 (Eive-peak pattern is representative of diarylphenylenedi-amine isomers) (c) RPLC ti ace of fraction 2, mixed disulfide and MBTS (2,2 -thiobis (ben-zothiazole)). Obtained under the same conditions as given for Eigure 12.11. Reprinted from Journal of Chromatography, 149, E. L. Johnson et al, Coupled column chromatography employing exclusion and a reversed phase. A potential general approach to sequential analysis , pp. 571-585, copyright 1978, with permission from Elsevier Science.

Canadian sprinter Ben Johnson (1961- ) tests positive for anabolic-androgenic steroids (AASs) at the Seoul Olympic games and forfeits his gold medal to the second-place finisher, American Carl Lewis (1961-). 

Although banned by the IOC in 1974, AASs have been continued to be used. Among the more notable examples is the disqualification of Ben Johnson at the 1988 Seoul Olympic Games. Johnson, whose urine contained metabolites of the anabolic steroid stanazalol, had won the 100-meter dash gold medal in world record time. He was disqualified and his medal returned. Johnson was subsequently banned for life following another positive test, of another nature (discussed later), in 1993. 

A definition of art conservation has been stated by Ben Johnson, Head Conservator at the Los Angeles County Museum of Art Conservation can be defined as the application of science to the examination and treatment of objects of art and to the study of the environments in which they are placed. Art restoration is the portion of conservation which deals primarily with the treatment of objects. It should be understood that restoration does not imply an attempt to return the object to its original state but rather to prevent deterioration of the original materials while respecting their integrity (I). ... 

Ben Johnson, Steve Vezina, Eric Lamaze—all of these athletes tested positive for performanceenhancing substances that are banned by the International Olympic Committee (IOC). Who conducts the tests for these substances Meet Dr. Christiane Ayotte, head of Canada s Doping Control Laboratory since 1991. 

At the Seoul Olympics 1988 the Canadian athlete Ben Johnson was stripped of his gold medal and the title of the fastest runner ever for taking a banned substance, an anabolic steroid. So what are steroids and why are they banned from athletics ... 

Ms Jacquie Burke, Ms Miriam Cairns, Ms Val Christelow, Mr John Collings, Mr Ben Coapes, Ms Tolu Fasina, Dr Andrew Johnson, Dr John Malget, Ms Aileen Martin,... 

Straussberg R, Harel L, Ben-Amitai D, Cohen D, Amir J. Carbamazepine-induced Stevens-Johnson syndrome... 

On a sunny day in September 1988 in Seoul, Korea, the world of sports was changed forever. Ben Johnson ran the 100-meter dash in 9.79 seconds to win the Olympic gold medal and break the world record. Johnson had become the world s fastest human—of all time. Then just two days later, after traces of the anabolic steroid stanozolol were found in Johnson s urine sample, he was stripped of his record and his medal and left the games in disgrace. The reverberations in the sports world are still being felt perhaps more significantly, Johnson s scandal opened the eyes of the public to the problem of steroid abuse. 

In the 1988 Summer Olympics, Ben Johnson of Canada ran the fastest 100-meter race in history, 9.79 seconds, and was awarded the Gold Medal. Little more than two days later, Michele Verdier of the International Olympic Committee stood at a press conference and read the following statement "The urine sample of Ben Johnson, Canada, Athletics, 100 meters, collected Saturday, 24th September 1988, was found to contain metabolites of a banned substance, namely stanozolol, an anabolic steroid." Johnson was disqualified, and Carl Lewis of the United States became the Olympic Gold Medalist in the 100-meter race. 

Even though these life-threatening side effects are well known, athletes continue to use anabolic steroids. The temptation must have been too great for Ben Johnson. After a period of suspension from amateur athletics, Johnson again entered competition. In March 1993, testing before a track meet revealed that he had used anabolic steroids to enhance his performance. As a result, he was forever banned from amateur competition. 

An online resource on this topic is available at (30). This webpage was developed by Aeree Chung and Ben Johnson at Columbia University in conjunction with their astronomy lab. The pages give an overview of the electromagnetic spectrum, and outline applications of spectroscopy to astronomical studies. Included are pictorial representations of astronomical observations with brief descriptions, and information on observational instrumentation. Also discussed are the distinctions between continuum,... 

Canadian sprinter Ben Johnson was disqualified for steroid use after winning the 1988 Olympic Games 100-meier dash. 

Cawse, Timothy Chuck, Yan Gao, Marsha Grade, Bruce Johnson, Tracey Jordan, Richard Kilmer, Jonathan Male, Bahram Moasser, Phil Moreno, Ben Patel, Eric Pressman, John Ofori, Kirill Shalyaev, David Smith, James Spivack, Ignacio Vic, Donald Whisenhunt Jr., and Eric Williams. The author also thanks Thomas Miebach and Gary Yeager for their help with the manuscript preparation. 

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