If correctional institutions are to function according to established criteria, that is, to “correct” the deviant behavior of juvenile delinquents, then one obvious requirement is to have continuous contact with that individual over a period of time. This research project is one attempt to study runaways from the juvenile delinquent girls institution. This study specifically focuses on what factors influence a girl to run away and what factors encourage her to stay at Villa St. Rose. Both researchers discovered in working at Villa St. Rose that one the biggest obstacles for the treatment program was the number of runaways that occurred. As a treatment facility having female adolescents in their care, runaways were demoralizing to the staff and debilitating to treatment.

published_or_final_version / Sociology / Master / Master of Social Sciences

published_or_final_version / Social Work / Master / Master of Social Work

Thesis (M.S.)--Ohio State University, 2008. / Title from first page of PDF file. Includes bibliographical references (p. 34-40).

Runaway youth often face a multitude of negative experiences during their childhood, which often leads to trajectories of psychological disorder/distress, victimization, and offending. This propensity for negative life trajectories may be exacerbated by repetitive runaway behavior. Additionally, these negatives experiences may be further shaped by the gender of the youth, thus creating distinct gendered pathways to chronic runaway behavior, victimization, and offending. This study utilized a sample of youth runaways in the state of Florida (N=295) to build upon the classification/typology research on juvenile runaways by assessing the presence of latent groups of youth based on runaway frequency. In addition, this study utilized classical and modern criminology theories to influence the assessment of the relationship between known runaway risk factors and chronic runaway status. Group-based trajectory modeling was performed and two distinct groups of youth runaways were identified for both full and gender-exclusive models. Chronic runaway analyses indicated both unique and similar gender-based relationships between chronic runaway status and relevant risk factors, suggesting partial support for a gender specific theoretical perspective. Results provide additional insight into youth runaway behavior while also suggesting the need for further exploration of chronic runaway status within the youth runaway population.

No description available.

Microwave processing of ceramics has seen a growth in research and development efforts throughout the past decade. One area of interest is the exploration of improved heating control through experiments and numerical modeling. Controlled heating may be used to counteract non-uniform heating and avoid destructive phenomena such as cracking and thermal runaway. Thermal runaway is a potential problem in materials with temperature dependent dielectric properties. As the material absorbs electromagnetic energy, the temperature increases as does its ability to absorb more energy. Controlled processing of the material may be achieved by manipulating the applied field. The purpose of this research is to model the interaction of the EM-field with a thin ceramic fiber to investigate possible mechanisms that may affect the heating process. The fiber undergoes microwave heating in a single-mode resonant applicator. Maxwell's equations for the fields within the cavity are solved using mode-matching techniques taking into account the field interaction of the fiber and an arbitrarily shaped coupling aperture. Effects of varying the aperture shape on the field distribution are explored. The coupled nature of the electromagnetic solution with the material's temperature-dependent properties, including an analysis of non-uniform heating, is also discussed. / Master of Science

Not available / text

Undoubtedly, runaway and homeless youth (RHY) are one of the most vulnerable, yet underserved groups in our country. Well-meaning advocates have developed programs and services in an attempt to remedy this, yet there is little evidence of their effectiveness. Moreover, according to the research literature, a low utilization rate of current services by youth is a major concern. From a constructivist theoretical position, this study posits that the missing element is youth voice and the researcher hired formerly homeless youth to conduct the analysis of focus group data gathered from RHY who were participating in a range of services funded by the Runaway and Homeless Youth Act. By employing participatory action research (PAR) methods, this study privileges youth voice and asks two research questions; 1) what are current program models doing right with regards to RHY services, and 2) what can be learned by employing youth analysts in research. Findings indicate that how services are offered is as important as what services are offered. Additionally, by privileging youth and providing meaningful participation, youth are exceptionally capable to develop and evaluate services, programs and policy. Youth workers must continue to privilege youth voice if they hope to effect change in the lives of young people. If not, services will continue to play a key role in keeping RHY as one of the most marginalized groups in our society.

Examensarbetet gjordes på Volvo Group Trucks Technology. Målet med arbetet var att studeravärmeutveckling i Li-jon cell för hybrid- och elbilar, HEV och EV. Battericeller undersöktesunder sina normala arbetsförhållanden och vid förstörande prov. Undersökningen baserades påcellernas yttemperatur. Arbetet beskrev cellernas beteende och syftade att vara ett underlag förkonstruktörer av batterisystem.En litteraturstudie gjordes för att studera faktorer som påverkar värmeutvecklingen. Sedananalyserades källor till samtliga faktorer. En moduleringsmetod för analys av cellensvärmeeffektivitet togs fram. Miljöpåverkan och ekonomiska aspekter av batterier undersöktes.Tre tester togs fram för att undersöka värmeutvecklingsfaktorer på fem celler. De flestafaktorerna var externa såsom laddning och urladdning, puls och kontinuerlig ström ochomgivningstemperatur. En infraröd kamera användes vid experimenten.Testerna visade hur olika faktorer påverkade cellernas temperatur. Vidare analys av källor visadekritiska områden i cellernas konstruktion.Förstörande värmeprov gjordes på tre par av celler. Dessa värmdes upp till 300°C vilketorsakade ”thermal runaway”. I vissa fall gick temperaturen över 600°C och celler fattade eld.Olika kemiska sammansättningar och uppbyggnad av cellerna gjorde att de betedde sig olika vidgenomförda tester.Testerna visade att olika celler presterade olika vid liknande testförhållanden. Därför är detviktigt att ta fram specifikationer för användningsförhållanden för att välja ut en cell för ettbatterisystem. Sedan kan prestandan av olika celler jämföras och effektivitet kan utvärderas församma belastningscyklar.Thermal Management System kan förhöja batteriets effektivitet och måste designas medanvändningsförhållanden i åtanke. Batteriernas säkerhet är väldigt viktig och människor får inteskadas av batterier. Därför måste säkerheten finnas i åtanke i alla steg av batteridesign.Arbetets resultat blev en sammanfattning av viktiga faktorer och specifikationer för batteridesignsom baserades på värmeutvecklingen. Samtliga riktlinjer sammanfattades i Appendix 5. / Master thesis work was done at Volvo Group Trucks Technology. Aim of the project was tostudy thermal behaviour of Li-ion battery for hybrid and electric vehicles, HEVs and EVs.Battery cells were tested in regular working conditions and abuse conditions. Surfacetemperature of cells was chosen for studying heat evolution.A literature study was conducted to research factors that influence cell temperature. Analysis ofsources of these factors was then performed. A modelling method for analyzing cell thermalefficiency was designed. Sustainability and economics aspects of batteries were also studied.When factors were established three tests were designed to study their effects. Five cells werestudied. Tests mainly examined external factors such as charge and discharge, pulse andcontinuous current, ambient temperature to name a few. An infrared camera was used.Study showed how different factors influenced cell temperature. Further analysis of sourcespointed out some hot spots of cell designs.Thermal abuse test were performed on three pairs of cells. Cells were heated up to 300°C andwent through thermal runaway which in some cases increased temperatures up to 660°C in lessthan a second and caused fire. Different cell chemistries and cell designs reacted differently tothe abuse conditions.A conclusion was reached that cells performed differently in similar test conditions. Whendesigning a battery system a set of specifications for usage conditions is crucial for choosing acell. When conditions and load cycles are known cells can be tested and their thermal andelectrical efficiency evaluated.Thermal Management System TMS can largely enhance cell efficiency and lifecycle. Suchsystem must also be designed according to usage conditions and particular cell’s performance.Battery safety showed to be a very important factor of designing a battery system. Humans shallnot be injured by systems with batteries which must be kept in mind during design.Work resulted in summary of important factors and specifications for designing a battery systembased on cell thermal behaviour. These guidelines are presented in Appendix 5.