oxygen-evolving complex
oxygen-evolving complex (OEC) A small complex of proteins and manganese ions associated with the reaction centre of photosystem II (PSII) that splits (oxidizes) water molecules to yield oxygen during
photosynthesis. Essentially, this oxidation provides the low-energy electrons from water that are excited by PSII using the light energy trapped by chlorophyll pigments. The resultant high-energy electrons can then flow through the electron transport chain. PSII draws electrons singly from a cluster of four manganese ions held by each OEC. When this cluster has accumulated four positive charges, the OEC oxidizes two molecules of water, producing one molecule of oxygen and four protons. The OEC is located on the lumen side of the thylakoid membrane in the chloroplast and requires chloride ions to function. See
photosystems I and II.
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Football's a passion, baseball's a career Center-fielder Szymanski played both at Princeton
Newspaper article from: Dayton Daily News; 4/3/2005; ; 700+ words
; ...Daylight as long as you're playing football, said Dayton Dragons center fielder...Szymanski. Actually, there's nothing like football. "It's hard to top," said Szymanski...me." Dunn has not played competitive football since. "I still miss it," he said...
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 "Seattle Post-Intelligencer (Seattle, WA)")
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FOOTBALL SKEWS TITLE IX EQUATION.(Sports)
Newspaper article from: Seattle Post-Intelligencer (Seattle, WA); 2/7/2003; 700+ words
; ...central fact is faced and acted upon. Football must be divorced from all other sports...organization are dramatically different. Football is in the same position. In terms of...winter sports, including hockey. But football, by its proud avowal of brutality and...
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 "Post-Tribune (IN)")
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FOOTBALL: THE REAL HYSTERIA
Newspaper article from: Post-Tribune (IN); 8/22/1997; 700+ words
; ...Those are two characteristics of Region football as shown here in 1996's Griffith...POST-TRIBUNE FILE PHOTO) Region football fans tend to be loyal despite the often...Fist in a series Over the course of the football season, the Post-Tribune will examine...
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FOOTBALL MONEY MEANS SURVIVAL AT MANY REGION SCHOOLS
Newspaper article from: Post-Tribune (IN); 9/5/1997; 700+ words
; ...Friday's Hammond Morton at Gary Wirt football game. Their son, Chuck is a member...revenue to cover expenses for not only football, but other sports in the athletic program...AGENDA '97 Hoosier Hysteria? Area football coaches might tell you to kiss some pigskin...
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 "Daily News (Los Angeles, CA)")
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FOOTBALL CAMPAIGN LAUNCHED : COLLEGE OFFICIALS WEIGH RETURN OF COUGAR TEAM.(NEWS)
Newspaper article from: Daily News (Los Angeles, CA); 4/2/1997; 700+ words
; ...community college squads, but Cougar football could make a comeback. A panel looking...feasibility of resurrecting the campus football program concluded last week that there...determined there is emotional support for a football team at College of the Canyons...
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 "The Daily Mail (London, England)")
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Football has become a foul game, feeding on anger and hatred.
Newspaper article from: The Daily Mail (London, England); 9/17/2002; ; 700+ words
; ...for the authentic voice of the modern football supporter, Mr Angry would make a fair...that made reasonable points. Such is football's capacity for finding all that is...similar examples of moral turpitude. Football lives by its own laws, and so it is...
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 "Daily Oklahoman (Oklahoma City, OK)")
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Football regarded as favorite season by many in state.
Newspaper article from: Daily Oklahoman (Oklahoma City, OK); 1/11/2007; 700+ words
; ...the end of my favorite time of year: football season. For the next eight months, I'm just going to be waiting for kickoff. Football season ended with a huge upset that was...Monday night. No matter the result, football fans have to say goodbye to the 2006...
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FOOTBALL FEARS MANY PARENTS PREFER OTHER SPORTS, THOUGH STATISTICS SAY IT'S SAFE.(Sports)(Statistical Data Included)
Newspaper article from: Daily News (Los Angeles, CA); 9/27/2003; 700+ words
; ...quarterback for the Chatsworth Chiefs tiny mite football team. That didn't necessarily mean...were Joe Sr. and Joe Jr., both avid football fans. In the minority was mom, a registered...in her fear about letting her son play football. ``I'm not OK with it,'' Moulton...
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Football, Exercise Science and Sports Medicine Experts Issue Guidelines To Help Football Teams Tackle the Heat; Experts Convened at the 2002 Gatorade Sports Science Institute Conference To Outline Recommendations for Safeguarding Football Players.
PR Newswire; 8/12/2002; 700+ words
; ...CHICAGO -- Kicking off this month, football players at the high school, collegiate...and mental performance. To help football teams understand how they can tackle the heat this summer, experts in football, exercise science and sports medicine...
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FOOTBALL DRIVES THE PROGRAM
Newspaper article from: Wyoming Tribune-Eagle; 2/22/2004; 700+ words
; The season-opener for football is more than six months away, but football and athletics in general at the University of Wyoming...improvements, maintaining competitive balance in football, men's and women's basketball and volleyball...
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football
Book article from: The Columbia Encyclopedia, Sixth Edition
football any of a number of games in which two opposing...rules, these include soccer (association football) and rugby , in addition to the games covered in this article: American football, Canadian football, Gaelic football, and...
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Football
Dictionary entry from: Dictionary of American History
FOOTBALL FOOTBALL. The game of American football as played today by high school, college, and professional teams grew out of rugby-style football which in the mid-1870s replaced a largely kicking game known as association football. Although...
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Football: Professional
Book article from: American Decades
FOOTBALL: PROFESSIONAL From Rags to Riches At the beginning of the 1920s professional football was in disarray. The play-for-pay sport...Red Grange, and George Halas. The National Football League On 17 September 1920 the American Professional...
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National Football League
Book article from: International Directory of Company Histories
National Football League 280 Park Avenue New York, New...Incorporated: 1920 as American Professional Football Conference Employees: 400 Sales...sport in the United States, the National Football League (NFL) serves as a trade association...
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Manchester United Football Club plc
Book article from: International Directory of Company Histories
Manchester United Football Club plc Sir Matt Busby Way Old Trafford...Networks; 72111 Hotels Manchester United Football Club plc has earned a reputation as...x2019; s most financially successful football team. First in its field to be listed...
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