Statistics consistently show that minorities are overrepresented at each level of the juvenile justice system. However, while Disproportionate Minority Contact (DMC) in the juvenile justice system is well documented, the cause is still unclear. Some have suggested that DMC is simply the result of disproportionate amounts of crime committed by minority youth, while others claim that racism, be it overt, subtle, individual or institutional, plays a significant role in DMC. Observation of juvenile court proceedings and interviews with juvenile court judges and lawyers, each coded for content analysis, were used to determine the effects of race in juvenile court decision making. In this research, I suggest that race plays a significant, yet subtle role as personal beliefs, political necessities and motives of both professional participants in the system and political and community civic leaders, result in racial stratification established within a racialized social framework.

EFHC1 est une nouvelle protéine qui savère mutée dans certaines familles atteintes dEMJ. A ce jour, létude des mutations associées à différents types dépilepsie a souvent débouché sur lidentification de mutations au niveau de gènes codant des canaux ioniques. Cependant, dans ce cas, les résultats sont beaucoup plus inattendus ; la protéine impliquée nétant pas un canal ionique mais une protéine à domaine EF-hand. Lobjectif principal du présent travail est de mieux appréhender les propriétés biochimiques et fonctionnelles dEFHC1. Une telle démarche nécessite notamment didentifier les tissus et les cellules qui expriment la protéine, de déterminer la localisation cellulaire et enfin didentifier les partenaires protéiques. Dans la première partie de ce travail, après avoir observé la localisation dEFHC1 au niveau de lappareil mitotique et du centrosome dans différentes lignées cellulaires, nous nous sommes intéressés à létude de lexpression et de la localisation de lARN messager et de la protéine EFHC1 dans les cerveaux de souris adulte et embryonnaire (au 16ème jour embryonnaire). La seconde partie de ce travail consiste en lidentification des partenaires protéiques potentiels dEFHC1 grâce à des expériences dimmunoprécipitation. Les différentes protéines testées étant choisies sur bases de nos résultats antérieurs ainsi que sur les données disponibles dans la littérature. Dans la troisième partie de ce travail, nous nous sommes intéressés à létude de la localisation dans des cellules HEK-293 de quatre protéines à domaines DM10 homologues à EFHC1, à savoir EFHC2 humaine, Rib72 de Chlamydomonas reinhardtii, Defhc1 et Defhc2 de Drosophila melanogaster. Chaque chapitre fera lobjet dun rappel systématique du contexte scientifique qui a précédé notre démarche expérimentale, des objectifs poursuivis, des résultats obtenus et de leurs discussions. Nous rassemblerons ensuite ces résultats dans le cadre dune conclusion.

The sponge Halichondria okadai is one of the most common sponges in the intertidal zone in Peng-Hu, Taiwan. And their juveniles are found on the back side of rocks in the period of July to October. In the present study, changes of juvenile morphology with their growth and the contents of photoprotective materials were examined. In adults, the thickness of the black surface layer did not correlate with their surface area. In juveniles, changes of their color were not correlated with their surface area neither. In juveniles, the structure of the tissues in the mesoyl layer were looser than the surface layer and there were more black chromatocytes in the surface layer than the mesohyl layer. The compositions of spicules were different in various stages of the sponge. There were no spicules in embryos and larvae. In juveniles, microscleres were the main components. However, megascleres of oxea and strongyle were the major types in adult. When the juveniles exposed to different light treatments, their color changed gradually from white to black. In adults, the total contents of melanin were more in the surface layer than the mesoyl layer. And comparison, the contents of melanin were more in adults (0.074-0.115 mg/protein) than in juveniles (0.028-0.036 mg/protein).

Statistics consistently show that minorities are overrepresented at each level of the juvenile justice system. However, while Disproportionate Minority Contact (DMC) in the juvenile justice system is well documented, the cause is still unclear. Some have suggested that DMC is simply the result of disproportionate amounts of crime committed by minority youth, while others claim that racism, be it overt, subtle, individual or institutional, plays a significant role in DMC. Observation of juvenile court proceedings and interviews with juvenile court judges and lawyers, each coded for content analysis, were used to determine the effects of race in juvenile court decision making. In this research, I suggest that race plays a significant, yet subtle role as personal beliefs, political necessities and motives of both professional participants in the system and political and community civic leaders, result in racial stratification established within a racialized social framework.

Thesis (Ph.D.)--University of Nebraska-Lincoln, 2009. / Title from title screen (site viewed January 5, 2010). PDF text: vi, 107 p. ; 613 K. UMI publication number: AAT 3369394. Includes bibliographical references. Also available in microfilm and microfiche formats.

Thesis (Ph.D.)--Virginia Commonwealth University, 2009. / Prepared for: L. Douglas Wilder School of Government and Public Affairs. Title from title-page of electronic thesis. Bibliography: leaves 126 -138.

Greifswald, Universität, Thesis (doctoral), 2001. / Includes bibliographical references.

Thesis (Ph. D.)--Ohio State University, 1965. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (Ph.D.)--University of Central Florida, 2009. / Adviser: Jay Corzine. Includes bibliographical references (p. 209-224).

Thesis (Ph.D.) -- University of Texas at Arlington, 2008.