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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Avaliação do uso do suor como matriz biológica para verificar a exposição à cocaína associada ou não à ingestão de bebida alcoólica / Title not available

Follador, Maria Jose Damas 17 September 2004 (has links)
Foi desenvolvido um método para detecção de cocaína e cocaetileno (produto da associação de cocaína e etanol) no suor. Amostras de suor foram coletadas por meio de adesivos PharmChek®. O método se baseou na eluição da cocaína e cocaetileno incorporados no adesivo com tampão acetato, extração dos analitos por microextração em fase sólida (SPME) e identificação por espectrometria de massa associada à cromatografia em fase gasosa (GC/MS). O método foi validado e aplicado em pacientes internados para tratamento da dependência à cocaína. Foram coletadas amostras de urina dos mesmos pacientes para pesquisar benzoilecgonina por enzimaimunoensaio. Cocaína e cocaetileno foram detectados nas amostras de suor até dez dias e oito dias, respectivamente, após a última exposição. Benzoilecgonina foi detectada nas amostras de urina até 4 dias. A concordância entre o relato dos pacientes e os resultados das análises do suor foi de 94% para a cocaína e cocaetileno. / A method was developed to detect cocaine and cocaethylene (product of the association between cocaine and ethanol) in sweat. Sweat samples were collected by means of a sweat patch device supplied by PharmChekTM. The method was based on the elution of de cocaine and cocaethylene incorporated in the patch with acetate buffer, extraction of the analytes by solid-phase microextraction (SPME) and identification by mass spectrometry associated with gas chromatography (GC-MS). The method was validated and applied in inpatients in treatment to dependence to cocaine. Urine samples were collected from the same inpatients to search benzoyilecgonine by enzyme immunoassay. Cocaine and cocaethylene were detected in sweat samples untill ten days and eight days, respectively, after the last exposure. Benzoyilecgonine was detected in urine samples untill four days. The agreement between the inpatients reports and the sweat analysis results was about 94% for cocaine and cocaethylene.
2

A study of the high rate of teenage pregnancy in high schools in the lLembe District

Nkwanyana, Thandiwe Rose 02 1900 (has links)
Abstract not available / Psychology of Education / M. Ed. (Psychology of Education)
3

A study of the high rate of teenage pregnancy in high schools in the lLembe District

Nkwanyana, Thandiwe Rose 02 1900 (has links)
Abstract not available / Psychology of Education / M. Ed. (Psychology of Education)

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