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• A long journey to somewhere: JLR at 40 

  In 19691 was just finishing up my PhD at the University of Illinois. Publishing was on my mind as I needed to begin the march towards tenure. I had...

  Journal of Leisure Research, 06/22/09 by Peter A. Witt · More from publication

• Situational antecedents to leisure behavior 

  Over the years theorists have proposed a variety of explanations for leisure behavior patterns. Classical theories basically center around five...

  Journal of Leisure Research, 06/22/09 by Peter A. Witt; Doyle W. Bishop · More from publication

• Identification, Biochemical Characterization, and Subcellular Localization of Allantoate Amidohydrolases from Arabidopsis and Soybean1[W] 

  Allantoate amidohydrolases (AAHs) hydrolize the ureide allantoate to ureidoglycolate, CO2, and two molecules of ammonium. Allantoate degradation is...

  Plant Physiology, 02/01/08 by Werner, Andrea K; Sparkes, Imogen A; Romeis, Tina; Witte, Claus-Peter · More from publication

• Readership is more important than publication outlet 

  When I worked at the University of Ottawa, Canada in the 1970s, I often traveled back and forth to the United States to visit family and friends....

  Journal of Leisure Research, 06/22/03 by Peter A. Witt · More from publication

• Antivascular tumor eradication by hypericin-medicated photodynamic therapy 

  Antivascular Tumor Eradication by Hypericin-mediated Photodynamic Therapy ABSTRACT Photodynamic therapy (PDT) with hypericin has been shown to...

  Photochemistry and Photobiology, 11/01/02 by Chen, Bin; Roskams, Tania; de Witte, Peter A M · More from publication

• Youth development: going to the next level; services for youth need to help reduce problem behaviors, and increase pro-social attitudes and skills - Social Issues 

  Youth development as a term and set of practices began to emerge in the late 1980s. However, concerns began that youth programs were being...

  Parks & Recreation, 03/01/02 by Peter A. Witt · More from publication

• Insuring After-School Programs Meet Their Intended Goals - education, United States 

  Documentation of outcomes associated with after-school program participation is increasing. However, to date, no comprehensive meta-analysis of...

  Parks & Recreation, 09/01/01 by Peter A. Witt · More from publication

• Cellular photodestruction induced by hypericin in AY-27 rat bladder carcinoma cells 

  ABSTRACT In a recent clinical study we showed that hypericin accumulates selectively in urothelial lesions following intravesical administration...

  Photochemistry and Photobiology, 08/01/01 by Kamuhabwa, Appolinary R; Agostinis, Patrizia M; D'Hallewin, Marie-Age; Baert, Luc; de Witte, Peter A M · More from publication

• Re-Examining the Role of Recreation and Parks in After-School Programs 

  There is growing consensus that after-school programs are needed to serve children of all ages. In a nationwide poll of 800 registered voters,...

  Parks & Recreation, 07/01/01 by Peter A. Witt · More from publication

• Developing Our Future: Austin's Neighborhood Teen Program 

  Austin's Neighborhood Teen Program (NTP) is making a positive difference in the lives of teens. Recognizing that a "recreation" department must get...

  Parks & Recreation, 03/01/01 by Peter A. Witt · More from publication