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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.
131

Samspel mellan Jordens 9 gränser och SIQ modellen för en hållbar kvalitetskultur

Gjerdrum, Adam January 2016 (has links)
Abstract Background The organisations actions are continuing to be disconnected from Earth system research and to what level organisations have an impact, if all to minimize risk of collapse of Earth systems are unknown (Whiteman etl al 2013) this is the problem this paper is seeking to address. By connecting organizations sustainability work with Earth boundaries research by developing the Swedish SIQ business excellence model. Purpose The purpose of this paper is to develop SIQ model so it contains what is necessary to identify organizations impact on Earth 9 boundaries.  Method A qualitative research method has been used and the analysis has been done by using the Planetary Boundaries research and top-down & bottom-up perspective as a lens to identify problem, solution and to analyse the SIQ model, then data has been collected by literature studies. Results The result chapter is the presentation of a model than show the relation between the Earth system and boundaries. This is followed by the analysis of the SIQ model that suggest main development needs in the environmental management criteria. The development should incorporate a top-down & bottom-up perspective in order to effectively consider external criteria’s such as Earth boundaries in the management of the organization at management and activity level. Discussion For organisations to consider external factors such as Earth boundaries the SIQ criteria’s and goals has to interact. And by interacting Earth boundaries with the SIQ model the gap between organizations and environmental science are reduces. By reducing this gap the organizations activities can contribute to minimize the degradation on Earth systems and risk for collapse / Bakgrund Företagens aktiviteter fortsätter att vara särkopplade från vetenskapen om Jordens globala system och till vilken utsträckning företagen motverkar kollaps av Jordens system är oklart (Whiteman et al. 2014) och det är denna utmaning som denna uppsats söker att utforska genom att koppla företagens hållbarhetsarbete med Jordens 9 gränser genom at utveckla SIQ modellen. Syfte Syfte med denna uppsats är att utveckla SIQ modellen så den innehåller det som krävs för att företagen skall identifiera sin inverkan på Jordens 9 gränser. Metod En kvalitativ metod har använts och för att analysera har gjorts genom att använda Jordens 9 gränser och top-down/bottom-up perspektivet som lins för att identifiera problem, lösningar och analysen av SIQ modellen och datainsamlingen har gjorts genom litteraturstudier. Resultat Resultatkapitlet introducerar en modell som visar samverkan mellan Jordens system och 9 gränser ner till företagen aktiviteter. Modellen följs av analysen av SIQ modellen som visar störst utvecklingspotential i miljöledningskriterierna. Utvecklingen bör samverka med top-down/bottom-up perspektiven för att modellen skall på bästa sätt omhänderta externa faktorer såsom Jordens gränser i styrningen av företagen på överordnad och utförarnivå. Diskussion För att företagen skall kunna omhänderta alla externa faktorer såsom Jordens gränser så måste SIQ kriterierna och företagens mål samverka. Genom att integrera Jordens gränser med SIQ modellen så har gapet mellan företagen och miljövetenskapen minskats. Genom att minska detta gap kan företagens aktiviteter bidra till att minimera nerbrytningen och risk för kollaps av Jordens system.
132

Existence of Many Sign Changing Non Radial Solutions for Semilinear Elliptic Problems on Annular Domains

Finan, Marcel Basil 08 1900 (has links)
The aim of this work is the study of the existence and multiplicity of sign changing nonradial solutions to elliptic boundary value problems on annular domains.
133

Irradiation effects on Fe-Cr alloys

Hu, Rong January 2012 (has links)
Ferritic chromium steels are important structural materials for future nuclear fission and fusion reactors due to their advantages over traditional austenitic steels, including low swelling rates, better thermal fatigue resistance, and lower thermal expansion coefficients. Radiation-induced segregation or depletion (RIS/RID) of solute atoms at grain boundaries is considered to be a potentially significant phenomenon for structural materials because of its potentially detrimental role in affecting microstructure and furthermore mechanical properties. However, the behaviour of Cr at grain boundaries in ferritic steels is not well understood. Both segregation and depletion of Cr at grain boundary under irradiation have been previously observed and no clear dependency on irradiation condition or alloy type has been presented. Furthermore, ferritic alloys are known to undergo hardening and embrittlement after thermal aging in the temperature range of 300-550DC and this phenomenon is related with a and a' phase separation occurring in the solid solution. However the low temperature a-a' miscibility gap in the currently used phase diagram is extrapolated from high temperature results and conflicts with many experimental observations. To understand the Cr behaviour at gram boundaries in ferritic steels under irradiation, a systematic approach combining SEM/EBSD, FIB specimen preparation and APT analysis has been developed and successfully applied to a Fe- 15.2at%Cr to investigate the effect of pre-irradiation chemistry, grain boundary misorientation, impurities, irradiation damage, irradiation depth, and other possible factors to get a better understanding of RIS/RID phenomena. Both low sigma boundaries and randomly selected high angle boundaries have been investigated in detail. Systematic differences between the behaviour of different classes of boundaries had been observed, and the operating mechanisms are also discussed in this thesis. The maximum separation method has been applied on APT data to study the C- enriched clusters and Cr-enriched clusters, which were not directly visible on the atom maps. The composition of the Cr-enriched clusters was consistent with a' phase and the irradiation was found to accelerate the nucleation rather than the growth of these clusters. Such results provided important information in re- determining the a-a' phase boundary.
134

Moral citizenship : an ethnographic exploration of the category of victimhood in post-genocide Rwanda

Guglielmo, Federica January 2016 (has links)
In order to foster social reconciliation in the aftermath of the 1994 genocide, the Rwandan government has implemented a judiciary system and established a national commemoration period. More importantly, in order to eradicate the ideological foundation of the genocide, the government has outlawed ethnicity as a cornerstone of genocidal propaganda. Ethnography shows that these efforts have been only partially successful and that ethnicity occupies a central, silent space at the centre of Rwandan national politics and social interaction. In this work, I shed light over the entanglement between the memory of the genocide and social identities in Rwanda. I explore the ways in which ordinary Rwandans re-situate their ethnic background through moral categories that surface from the government’s historical narrative of the genocide and of the events that led to it. I analyse the means through which this narrative is established, the judicial enforcement and the memorialisation of the genocide, to illustrate the patterns of blame and legitimacy that saturate these historical constructions. Within these contexts, I explore the ways in which individuals exercise tactical agency in order to re-place their ethnic past in relation to these narratives. Drawing on in-depth ethnographic fieldwork, I argue that the government’s narrative of the genocide constitutes a moral landscape in relation to which actors acquire — or are denied — instances of victimhood. Negotiation over these instances take the form of accusatory practices which, more or less explicitly, are used in everyday life to define selfhood and otherness with respect to the genocide. My research shows how, cutting across former ethnic boundaries, the category of victimhood represents a form of empowerment, which dialectically depends on the identification of perpetratorship.
135

On Two-Periodic Random Walks with Boundaries

Böhm, Walter, Hornik, Kurt January 2008 (has links) (PDF)
Two-periodic random walks are models for the one-dimensional motion of particles in which the jump probabilities depend on the parity of the currently occupied state. Such processes have interesting applications, for instance in chemical physics where they arise as embedded random walk of a special queueing problem. In this paper we discuss in some detail first passage time problems of two-periodic walks, the distribution of their maximum and the transition functions when the motion of the particle is restricted by one or two absorbing boundaries. As particular applications we show how our results can be used to derive the distribution of the busy period of a chemical queue and give an analysis of a somewhat weird coin tossing game. / Series: Research Report Series / Department of Statistics and Mathematics
136

Sexual Attraction, Behaviors, and Boundary Crossing between Sport Psychology Professionals and Their Athlete-Clients: Prevalence, Attitudes, and Supervision

Palmateer, Tess M 05 1900 (has links)
Sport psychology professionals (SPPs), like psychologists in general, may cross therapeutic boundaries (e.g., hug a client) and even become sexually attracted to their athlete-clients (ACs). I examined the prevalence of these issues, as well as SPPs' ethical training and use of supervision in relation to them. Participants were 181 SPPs; 92 (50.8%) reported being sexually attracted to one or more of their ACs. In regards to specific behaviors, approximately half (49.4%) reported discussing personal matters unrelated to their (n = 87), whereas far fewer had engaged in sexual behaviors with their ACs, such as discussing sexual matters unrelated to their work (n = 4), and caressing or intimately touching an AC (n = 1). No SPP reported kissing, dating, having sexual intercourse, or engaging in other sexual activities with their ACs. The three most common nonsexual boundary crossings were (a) consulting with an AC in public places (e.g., hotel lobby or practice field; 87.8%), (b) working with an AC at practice (86.2%), (c) working with an AC at a competition (75.0%). Interestingly, few SPPs sought supervision/consultation regarding the attraction, though 83.7% said they would do so if they were attracted in the future. I also examined differences across gender, mental health licensure, and years since graduation in relation to the outcome. Sexual attractions appear to exist between SPPs and their AC and should be discussed during training to normalize the experience and increase the likelihood of them discussing such attractions when they occur. Further, self-reflection and supervision are recommended approaches to managing such feelings and to minimize the chances of harming ACs.
137

O gênero Orthopyxis (Cnidaria, Hydrozoa) no Atlântico sul-ocidental: caracterização dos limites inter e intraespecíficos a partir de dados morfológicos e moleculares / The genus Orthopyxis of the southwestern Atlantic: evaluation of inter and intraspecific boundaries using morphological and molecular data

Cunha, Amanda Ferreira 21 October 2011 (has links)
Dentre os representantes de Campanulariidae, o gênero Orthopyxis é conhecido pela ampla plasticidade morfológica de suas espécies, bem como pela semelhança com o gênero Campanularia. Essas características levaram à descrição de muitas espécies nominais no Atlântico sul-ocidental e confusões com o gênero Campanularia, dificultando a identificação das espécies. Nesse contexto, este estudo teve os objetivos de (1) rever as ocorrências de Orthopyxis no Atlântico sul-ocidental, (2) compreender a variação morfológica intra-específica de Orthopyxis e delimitar suas espécies por meio de estudo morfométrico e molecular, e (3) compreender as relações entre os gêneros Orthopyxis e Campanularia no Atlântico sul-ocidental, levantando evidências morfológicas e moleculares que pudessem delimitá-los. A análise das sequências de DNA resultou no monofiletismo do gênero Orthopyxis e na delimitação das espécies O. sargassicola, O. integra e O. crenata, esta última um novo registro para o Atlântico sul-ocidental. As análises morfológicas permitiram identificar os caracteres informativos para a delimitação dessas linhagens, bem como a amplitude de variação dos caracteres morfológicos frequentemente utilizados para diagnose das espécies de Orthopyxis. Esse estudo aponta evidências morfológicas informativas para a delimitação dos gêneros, principalmente em relação ao cnidoma. O presente estudo do gênero Orthopyxis no Atlântico sul-ocidental poderá servir como modelo para o delineamento de outras pesquisas envolvendo a família Campanulariidae, ao mostrar que as espécies podem ser corretamente delimitadas a partir de análises morfológicas e moleculares. / Within the Campanulariidae, the genus Orthopyxis is known for its morphological plasticity and resemblance with the genus Campanularia. These characteristics have led to the description of numerous nominal species in the southwestern Atlantic, and also to considerable confusion with the genus Campanularia, making taxonomic identification very difficult. In this context, the goal of this study was to (1) review the occurrences of Orthopyxis in the southwestern Atlantic, (2) understand its intraspecific morphological variation and delimit species using morphological and molecular data, and (3) investigate the relationships between Orthopyxis and Campanularia to find morphological and molecular evidence for their delimitation. The molecular analyses resulted in a monophyletic Orthopyxis, and in the delimitation of O. sargassicola, O. integra, and O. crenata, the latter a new record for the southwestern Atlantic. The morphological analyses identified the characters that are most informative for the delimitation of these lineages, as well as the amplitude of morphological variation within the characters frequently used in the taxonomy of Orthopyxis.This study identified some morphological evidence for the delimitation of both genera, especially in relation to the cnidae. The present study of the genus Orthopyxis in the southwestern Atlantic can be used as a model for the delineation of future investigations of the family Campanulariidae, in the sense that species may be successfully delimited with an integrated morphological and molecular approach.
138

Circles of care : healing practices in a Bahian Candomblé community

Lesshafft, Hannah January 2017 (has links)
This thesis explores the dynamics of healing and care in a terreiro (house of worship) of the Afro-Brazilian religion Candomblé. My research is based on one year of ethnographic fieldwork with a Candomblé community in South Bahia, Brazil, during which I took part in the rituals, ceremonies, and everyday activities of the terreiro, and eventually became a ‘daughter of the house’. While the terreiro is at the heart of this study, I also draw upon observations and experience from the local neighbourhood, the nearest city Ilhéus, the state capital Salvador, and the city of Rio de Janeiro, where I started my journey, to complement and contextualize what I encountered inside the terreiro. I argue that cuidado, or care, is key to the cultivation of Candomblé’s vital force axé, and hence to achieving well-being and power in a socially exclusive society that is often perceived as profoundly uncaring. My thesis demonstrates that the circulation of axé and cuidado between humans and gods (orixás) is an essential part of Candomblé healing, understood as a process of reflexive self-transformation. Far from being altruistic or self-denying, then, cuidado effectively becomes a form of self-care. Subverting dichotomous logic, Candomblé cuidado is used to create and negotiate (healing) power through its capacity to simultaneously connect and divide. This thesis explores how boundaries are both transgressed and reinforced by way of cuidado in terms of transformative healing; kinship relations with the orixás; the exchange of human faith (fé) for divine axé; and performances on ‘divine stages’ and ‘profane stages’. Finally, cuidado is also used as a moral-political argument for the recognition of Candomblé in public health campaigns, in the context of an often-dysfunctional public health system. The analysis of dynamics of cuidado and boundary work in a terreiro, under consideration of the broader national context, makes this thesis an original contribution to the literature on Afro-Brazilian religion and healing. My ethnography also adds to the growing literature on the anthropology of care, especially in medical anthropology, and it pushes forward the discussion by explicitly reflecting on the circulation and negotiation of power through care.
139

Therapists : from family to clients

Begni, Isidora January 2005 (has links)
As a paradigm of a wounded healer, parentified therapists may be gifted with therapeutic talents, but also with related vulnerabilities that may have a significant influence on their therapeutic practice. Therefore, the aim of the current study was to explore the impact of parentification on therapeutic practice, especially on the therapeutic skills of empathy and boundary settings. For this purpose, a mixed method design was employed in which 38 trainee psychologists provided self-report data on the constructs of parentification measured by parentification questionnaire (Jurkovic, 1997), empathy, measured by Interpersonal Reactivity Index (Davis, 1980), and boundary settings, measured by Exploitation Index (Epstein, 1990) in a survey study, while 4 trainee psychologists were interviewed in a separate study. First, the quantitative data were analysed to assess the existence of possible relationships among the variables of parentification, empathy and boundary transgressions by a regression analysis. The results offered significant suggestions for the predictive power of parentification in regard to empathy and boundary transgressions. Following this, a qualitative study analysed the interviews with the 4 trainees using thematic analysis to explore the above relationships and provided a deeper insight, especially for their therapeutic utility. Combining the findings, the current study supported that parentification may first of all catalyse the choice of a psychologist's profession, well as the choice of the psychotherapeutic approach. In regard to the interpersonal skills, parentification may positively impact the development of enhanced levels of empathy, boundary flexibility, and creativity. On the other hand, parentification may also negatively impact on practitioners by making them more vulnerable to enmeshed therapeutic relationships. Especially in the case of destructive parentification, professional support may be needed to minimise the risk for enmeshed relationships, by increasing self-care and self-other differentiation. Clinical implications for parentified therapists were also discussed.
140

Interdigitated metal-semiconductor-metal (MSM) photodetector on III-V compound semiconductor materials.

January 1995 (has links)
by Hiu-suen Choy. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1995. / Includes bibliographical references (leaves [124]-131). / Acknowledgements / Abstract / Chapter Chapter 1 --- Introduction --- p.1-1 / Chapter Chapter 2 --- Basic Theory for MSM Photodetectors --- p.2-1 / Chapter 2.1 --- Schottky-Mott Theory for Ideal metal-Semiconductor Contact --- p.2-1 / Chapter 2.2 --- Modifications to Schottky-Mott Theory for Practical Metal Semiconductor Contact --- p.2-4 / Chapter 2.3 --- Energy Band of Metal-semiconductor-metal (MSM) Structures --- p.2-6 / Chapter 2.4 --- Dark Current Voltage Characteristics for MSM Structure --- p.2-12 / Chapter 2.5 --- Capacitance for Interdigitated MSM Photodetectors --- p.2-16 / Chapter 2.6 --- Basic mechanism of the MSM Photodetector --- p.2-19 / Chapter 2.7 --- DC Responsity and Quantum Efficiency of the Interdigitated MSM Photodetector --- p.2-20 / Chapter 2.8 --- Speed Performance of the Interdigitated MSM Photodetector --- p.2-21 / Chapter Chapter 3 --- Device Fabrication and Packaging --- p.3-1 / Chapter 3.1 --- Metallization Pattern --- p.3-1 / Chapter 3.2 --- Device Fabrication --- p.3-7 / Chapter 3.3 --- Device Packaging --- p.3-8 / Chapter Chapter 4 --- Experimental Description --- p.4-1 / Chapter 4.1 --- Experimental Procedures --- p.4-1 / Chapter 4.2 --- Equipment Description --- p.4-3 / Chapter Chapter 5 --- 1.3μm In0.53Ga0.47As Metal-Semiconductor-Metal Photodetector Grown by Low-Pressure MOCVD Using Tertiarybutylarsine --- p.5-1 / Chapter 5.1 --- General Description --- p.5-1 / Chapter 5.2 --- Structure of the Photodetector --- p.5-2 / Chapter 5.3 --- Experimental Results --- p.5-6 / Chapter 5.4 --- Data Analysis and Discussion --- p.5-14 / Chapter 5.5 --- Summary --- p.5-24 / Chapter Chapter 6 --- The Performance of 0.85μm Semi-Insulated GaAs MSM Photodetector with Different Interdigitated Spacings --- p.6-1 / Chapter 6.1 --- General Description --- p.6-1 / Chapter 6.2 --- Experimental Results --- p.6-2 / Chapter 6.3 --- Data Analysis and Discussion --- p.6-17 / Chapter 6.4 --- Summary --- p.6-27 / Chapter Chapter 7 --- Optical Control of Polarity in Short Electrical Pulses Generated from Coplanar Waveguide MSM Photodetectors --- p.7-1 / Chapter 7.1 --- General Description --- p.7-1 / Chapter 7.2 --- "Structure, Fabrication and Experimental Set-up" --- p.7-1 / Chapter 7.3 --- Experimental Results --- p.7-4 / Chapter 7.4 --- Data Analysis and Discussion --- p.7-11 / Chapter 7.5 --- Applications --- p.7-18 / Chapter Chapter 8 --- Conclusion --- p.8-1 / References / Publications

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