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Social and Behavioral Sciences Commons

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Full-Text Articles in Social and Behavioral Sciences

Peer Groups And Adolescent Development In Traditional And Alternative High Schools, Diana D. Coyl May 2000

Peer Groups And Adolescent Development In Traditional And Alternative High Schools, Diana D. Coyl

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study explored the influence of peer relationships on students who have a history of school difficulties. Peer Relationship Surveys I and II assessed school-based peer group status, relationship qualities, school-related behaviors, attitudes, and intentions (BAIs); substance (i.e., alcohol and tobacco) use; and identity development in relation to experiences at traditional (survey I, retrospective accounts) and alternative high schools (survey II). Both surveys were administered in five classrooms to students at an alternative high school (i.e. Cache High) during the first academic term (August 1999) and in January 2000. Eighty-five and 83 predominantly Caucasian adolescents between the ages of 15 …


Positionally Dependent 15n Fractionation Factors In The Uv Photolysis Of N2o Determined By High Resolution Ftir Spectroscopy, Fred Turatti, D W. T Griffith, Stephen Wilson, Michael Esler, T Rahn, H Zang, G A. Blake Jan 2000

Positionally Dependent 15n Fractionation Factors In The Uv Photolysis Of N2o Determined By High Resolution Ftir Spectroscopy, Fred Turatti, D W. T Griffith, Stephen Wilson, Michael Esler, T Rahn, H Zang, G A. Blake

Faculty of Science, Medicine and Health - Papers: part A

Positionally dependent fractionation factors for the photolysis of isotopomers of N2O in natural abundance have been determined by high resolution FTIR spectroscopy at three photolysis wavelengths. Fractionation factors show clear 15N position and photolysis wavelength dependence and are in qualitative agreement with theoretical models but are twice as large. The fractionation factors increase with photolysis wavelength from 193 to 211 nm, with the fractionation factors at 207.6 nm for 14N15N16O, 15N14N16O and 14N14N18O equal to −66.5±5‰,−27.1±6‰ and −49±10‰, respectively.