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Switzer, Jennifer Margaret. „Recovery times and adverse events between propofol and midazolam during colonoscopy“. Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45308.
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Sedation and analgesia are integral to successful colonoscopy completion and controversy surrounds the optimal pharmacokinetic agent that will target and maintain a moderate sedation level, offer operational efficiency with reduced recovery time, and minimize risk for cardiopulmonary complications. Current practice is imprecise; manual administration of procedural sedation using a combination of benzodiazepine and opioids puts patients at risk for descending into deeper levels of sedation, which can lead to risk for cardiorespiratory depression, and an increase in recovery times for up to two hours.
Studies have reported that propofol, a sedative agent with a short half life, can result in a shorter recovery, however there is limited research that has used consistent measurement to evaluate the procedural sedation recovery process or the influence of predictors such as age, sex, medication history, medical history, procedure time and body mass index (BMI), on recovery time and cardiopulmonary risk.
Therefore, a non-experimental descriptive retrospective study was undertaken with two groups of 100 subjects who had either midazolam administered manually or propofol administered using the Sedasys® System for colonoscopy to explore the differences in procedure length and recovery time between these groups.
Participants in the propofol group were somewhat younger and healthier than those in the midazolam group; average age 50.1 years versus 58.9 years, took fewer cardiac medications, had a lower BMI, and a lower incidence of cardiac or respiratory disease.
Multiple regression analyses were conducted to assess the contribution of independent clinical predictors (age, sex, BMI, medical history and medication history) for duration of recovery from procedural sedation and analgesia and the incidence of sedation-related
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adverse events. Propofol provided the largest contribution to the variance in recovery time after controlling for other significant predictors (R-squared = 0.22). Based on the MOAA/S score, participants who received propofol were discharged home sooner than those who received midazolam. There were no adverse events in either group.
The results of this study suggest that propofol for procedural sedation during colonoscopy may improve efficiencies and throughput in the endoscopy suite and may provide a safe means that can assist in meeting the rising demand for colonoscopy.
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Humm, Jennifer Leigh. „Behavior-dependent neural events and adult neurogenesis : contributions to recovery of motor function after cortical injury /“. Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.
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Lisk, Godfrey Olufemie. „Evaluating the molecular events that underlie functional recovery of botulinum poisoned neurones in vitro and in vivo“. Thesis, Imperial College London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268721.
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Field, Stuart. „Recovery of coral reef communities following disturbance associated with ship-grounding events in the Gulf of Aqaba, Egypt“. Thesis, University of Newcastle Upon Tyne, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442330.
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Chan, Wing-han Esther. „Road to recovery : adjustment and services needed for those suffering from spinal cord injury /“. Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20131835.
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Edwards, Douglas Grant. „Strategic Managerial Responses to Critical Service Events in Restaurants“. ScholarWorks, 2016. https://scholarworks.waldenu.edu/dissertations/2067.
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Inappropriate managerial responses to critical service events (CSEs) in restaurants contribute to an increased rate of customer defection and restaurant failure. Some restaurant managers lack employee-training strategies that may enhance service recovery from CSEs. This case study explored what employee-training strategies participants deemed essential to enhance service recovery to CSEs. The population for this study was restaurant managers from a U.S. regional chain in South Carolina with at least 3 years of employee-training experience. Organizational learning theory was the conceptual framework for this study. Data collection included semistructured face-to-face interviews with restaurant managers and an exploration of company archival documents related to CSEs. Using Yin's 5 step data analysis method (i.e. compiling, disassembling, reassembling, interpreting, and concluding), 3 major themes emerged: customer needs and requests, which included the importance of listening to customers and affirming their requests; employee actions and attitudes, which included opinions about the ideal employee demonstrating a great attitude when correcting mistakes; and training, which included multiple methods to improve employee performance through continuous training. Recommendations for action included how to instruct employees to listen, apologize, solve problems, and thank customers. Restaurant managers may apply these results to improve service quality and customer experiences. Social implications include strategies to create positive experiences for employees and customers enhancing community employment and business sustainability.
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García, James J. „Racial/ethnic Differences in Hospital Utilization for Cardiovascular-related Events: Evidence of a Survival and Recovery Advantage for Latinos?“ Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc500102/.
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Evidence continues to demonstrate that racial/ethnic minority groups experience a disproportionate burden of disease and mortality in cardiovascular-related diseases (CVDs). However, emerging evidence suggests a health advantage for Latinos despite a high risk profile. The current study explored the hospital utilization trends of Latino and non-Latino patients and examined the possibility of an advantage for Latinos within the context of CVD-related events with retrospective data collected over a 12-month period from a local safety-net hospital. Contrary to my hypotheses, there was no advantage for in-hospital mortality, length of stay or re-admission in Latinos compared to non-Latinos; rather, Latinos hospitalized for a CVD-related event had a significantly longer length of stay and had greater odds for re-admission when compared to non-Latinos. Despite data suggesting a general health advantage, Latinos may experience a relative disparity within the context of hospital utilization for CVD-related events. Findings have implications for understanding the hospital utilization trends of Latinos following a CVD-related event and suggest a call for action to advance understanding of Latino cardiovascular health.
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Nyman, Nick, und Smura Michel Postigo. „Examining how unforeseen events affect accuracy and recovery of a non-linear autoregressive neural network in stock market prognoses“. Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-186435.
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This report studies how a non-linear autoregressive neural network algorithm for stock market value prognoses is affected by unforeseen events. The study attempts to find out the recovery period for said algorithms after an event, and whether the magnitude of the event affects the recovery period. Tests of 1-day prognoses' deviations from the observed value are carried out on five real stock events and four created simulation sets which exclude the noisy data of the stock market and isolates different kinds of events. The study concludes that the magnitude has no discernible impact on recovery, and that a sudden event will allow recovery within days regardless of magnitude or change in price development rate. However, less sudden events will cause the recovery period to extend. Noise such as surrounding micro-events, aftershocks, or lingering instability of stock prices will affect accuracy and recovery time significantly.Denna studie undersöker hur ett icke-linjärt autoregressivt neuronnät för aktiemarknadsprognoser påverkas av oväntade händelser. Studien ämnar finna återhämtningsperioden för nätverket efter en händelse, och ta reda på om den initiala påverkan av händelsen påverkar återhämtningen. Tester av endagsprognosers avvikelse från det verkliga värdet genomförs på fem verkliga aktier och fyra skapade dataset som exkluderar den omgivande variationen från aktiemarknaden. Dessa simulerade set isolerar därmed specifika typer av händelser. Studien drar slutsatsen att storleken av händelsen har försumbar betydelse på återhämtningstiden och att plötsliga händelser tillåter återhämtning på några dagar oavsett händelsens ursprungliga storlek eller förändring av prisutvecklingshastighet. Däremot förlänger utdragna händelser återhämtningstiden. Likaså påverkar efterskalv eller kvarvarande instabilitet i prisutvecklingen tillförlitlighet och återhämtningstid avsevärt.
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Paul, Nicole Christine. „Variable Recovery of the Massive Coral, Porites Lobata, in Response to El Nino-Southern Oscillation Events at Devil's Crown, Galapagos, Ecuador“. NSUWorks, 2012. http://nsuworks.nova.edu/occ_stuetd/93.
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Porites lobata is an important reef building coral in the tropical eastern Pacific and the dominant Porites species in the Galápagos archipelago. Following the 1982-83 El Niño-Southern Oscillation the Galápagos Islands experienced 97-99% coral mortality, leaving many areas throughout the archipelago denuded of corals. Because very few long term assessments have been conducted on the growth and resilience of P. lobata to natural disturbances in the Galápagos Islands (Glynn et al., 2001; Glynn et al., 2009), benthic surveys were performed on a uniquely dense aggregation of P. lobata colonies at Devil’s Crown, Floreana Island between 1993 and 2011. Annual changes in live tissue area were calculated for the majority of the population (n=17) using Coral Point Count with Excel extensions (CPCe 3.6) software to determine growth and recovery trends for this aggregation. Total live tissue area (n=10) increased from 1993 to 2011, however due to high interannual variability this increase was not significant. Within this overall pattern, a general trend of decline was observed in live tissue cover from 1993 to 2000, with increases in tissue area observed from 2000 to 2011. Severe bleaching (85-100%) was observed during the 1998 survey, followed by 42% tissue loss (n=10), coinciding with sea water warming associated with the very strong 1997-1998 El Niño-Southern Oscillation event. Subsequent regrowth of coral tissue was observed during the 2001 survey with continued recovery through 2009. Multiple comparison testing revealed a significant difference between the impacted state (1999) and the recovered state (2009), (p = 0.002, Dunn’s method, n=17), suggesting this aggregation required a period of ten years to recover from this disturbance. During this recovery period the moderately strong 2007-2008 La Niña, with accompanying stressful low temperatures, occurred but did not interrupt tissue regrowth. Warmer than average sea surface temperatures occurred during the warm months from 2008 to 2011, during which time a cool period occurred from 2010 to 2011. While the magnitude and duration of temperature anomalies during warming were not as great as those observed during the 1997-98 ENSO, low temperatures observed during the cool period were similar to those experienced throughout the 2007-08 La Niña. During this time total live tissue cover was reduced by 19% (n=10); however it is unknown whether this was due to warming or the following cool period. Based on results from the 1997-98 El Niño and 2007-08 La Niña, this reduction in live tissue was most likely caused by elevated sea surface temperatures. Data on the growth and resilience of P. lobata populations at Devil’s Crown will be used for conservation and management of this important resource.
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Chan, Wing-han Esther, und 陳詠嫻. „Road to recovery: adjustment and services needed for those suffering from spinal cord injury“. Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31250440.
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Pellecchia, Antonella. „Experimental analysis of the effects of extreme events of mechanical disturbance on rocky shore algal and invertebrate assemblages in the Bagnoli-Coroglio post-industrial area and in reference sites in the Gulf of Naples“. Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17977/.
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Among the various natural and anthropogenic threats to coastal systems, industrial activities and their heritage of local contamination play a key role, especially where new disturbances are superimposed to extant degraded conditions. This may affect the functioning of assemblages, including their ability to recover, in unpredictable ways. Organisms subject to chronic contamination may respond better to a present discrete disturbance compared to organisms from reference areas not affected by the same contamination due to their adaptation to harsh conditions. By contrast, the same organisms may be more sensitive to the new disturbance if chronic contamination kept them close to their tolerance limit. This study tested such alternatives by comparing the patterns of recovery from the experimental removal of all erect organisms of lowshore benthic assemblages between the post-industrial site of Bagnoli-Coroglio (Gulf of Naples) and reference sites located outside it. Recovery was assessed over six months. Response variables included mean values and temporal trajectories of assemblage structure, richness of taxa and abundance of conspicuous taxa. The examined assemblages showed great recovery ability that was comparable between the post-industrial site and reference sites. Discussed potential explanations include: (i) intertidal organisms would quickly recover irrespective of background contamination as an adaptation to the naturally harsh and variable environmental conditions of their living habitat; (ii) reference sites would be subject to environmental stress comparable to that of Bagnoli-Coroglio being located in the highly urbanized Gulf of Naples; (iii) large variability between- and withinsites may have masked any impacts of experimental disturbance and their differences between the post-industrial site and the reference sites; (iv) historical contamination would be limited to subtidal sediments, without propagating to adjacent rocky habitats.
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Dahl, Catarina Magalhães 1978. „Experiência, narrativa e intersubjetividade : o processo de restabelecimento ("recovery") na perspectiva de pessoas com o diagnóstico de esquizofrenia em tratamento nos centros de atenção psicossocial“. [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/309193.
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Orientador: Erotildes Maria LealDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas
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Resumo: O processo de restabelecimento (recovery), referido ao tema da experiência do adoecimento, na perspectiva de pessoas com problemas mentais graves, vem sendo cada vez mais investigado no panorama mundial. Desde a década de 1960, diversos estudos colocam em xeque o legado kraepeliniano acerca da esquizofrenia como um transtorno cujo prognóstico leva à progressiva deterioração e cronicidade. Tais estudos revelam a existência de um amplo e heterogêneo espectro de desfechos relativos ao processo saúde-doença vivenciado pelas pessoas com o diagnóstico de esquizofrenia. No Brasil, os Centros de Atenção Psicossocial (CAPS) surgem no âmbito dos movimentos de Reforma Psiquiátrica e Sanitária, como equipamentos estratégicos, que têm como missão promover o acesso à saúde, o acolhimento, o cuidado integral e a reabilitação psicossocial das pessoas com problemas mentais graves, através da valorização das experiências e narrativas dos usuários destes serviços. Alguns autores, entretanto, atentam ao fato de que os CAPS ainda encontram desafios e obstáculos para superação do cuidado médico-centrado e hospitalocêntrico. Esta dissertação de mestrado está vinculada a um projeto de pesquisa mais amplo, realizado através da parceria entre a UFRJ, UNICAMP, UFF e a UFBA, com o apoio do CNPq. Trata-se de um estudo qualitativo multicêntrico no qual se buscou analisar, a partir do quadro de referência da Fenomenologia interpretativa, as narrativas sobre a experiência do processo de restabelecimento (recovery), na perspectiva de pessoas que receberam o diagnóstico de esquizofrenia em tratamento nos CAPS de Campinas, Rio de Janeiro e Salvador. As estratégias metodológicas utilizadas para produção das informações foram: observação participante, entrevistas diagnósticas semi-estruturadas e grupos focais, que foram áudio-gravados e posteriormente transcritos, codificados e analisados. Dentre os 18 usuários participantes, 12 eram do gênero masculino, 10 eram solteiros, 7 eram brancos e 5 eram afro-descendentes (3 em Salvador e 2 no Rio). O nível de escolaridade dos participantes foi o seguinte: 8 usuários com ensino médio completo, 6 usuários com ensino médio incompleto e 4 com ensino fundamental incompleto. A média de idade dos usuários foi de aproximadamente 44 anos, com idade mínima de 30 anos e máxima de 64 anos. A partir do material analisado, identificamos as seguintes categorias temáticas: restabelecimento da experiência/consciência de si; efeitos do adoecimento; diagnóstico e efeitos do diagnóstico; experiência e efeitos da medicação; estratégias de lida e de existência; possibilidades e expectativas relacionadas ao futuro; causas/contingências relacionadas ao processo de restabelecimento; ideia de cura/melhora; contexto de tratamento nos CAPS; contexto dinâmico de vida/relações familiares e interpessoais e continuidade/descontinuidade da experiência, entre outras categorias. Nós também encontramos diferentes modos ou tipos de narrativas, como: causas/contingências, protótipos, descrição da experiência, narrativas éticomorais e narrativas corporificadas. Na perspectiva dos usuários, o restabelecimento (recovery) caracteriza-se como um processo complexo, não-linear, que envolve diferentes dimensões da vida. Apesar de vislumbrarem a possibilidade de melhora, para os usuários a perspectiva de cura e retorno a um estado anterior ao adoecimento parece remota, co-existindo, assim, perspectivas mais e/ou menos auspiciosas em relação ao processo de restabelecimento
Abstract: The recovery process, in the perspective of persons who received the diagnosis of schizophrenia, it has been increasingly studied worldwide. Since the 1960's, different studies has been questioned the kraepelin's legacy in which schizophrenia is seen as necessarily degenerating and chronic disorder. Such studies reveal the existence of a wide and heterogeneous spectrum of outcomes related to the disorder. In Brazil, the Psychosocial Care Centers (CAPS) arise in the context of Psychiatric and Sanitary Reforms, as strategic services which objective is to promote the access,receptiveness, mental, comprehensive mental health care and social rehabilitation for persons with serious mental disorders However, some authors alert to the fact that the CAPS still find challenging obstacles to overcome the hospitalocentric care model This masters's dissertation is bounded to a wider multisite research project, carried out through a partnership between UFRJ, UNICAMP, UFF and UFBA and was funded by CNPq. It is a qualitative inquiry in wherein we analyzed, informed by the reference frame of Phenomenology and Hermeneutics, the narratives on the process of recovery, in the perspective of people with severe mental disorder, in treatment at the CAPS in Campinas, Rio de Janeiro and Salvador. The methodological strategies for data collection was participant observation, diagnosis interviews and focus groups, which were recorded, transcribed, codified and analyzed Among the 18 participants, 12 were men, 10 were single, 7 caucasian and 5 afrodescendents (3 in Salvador and 2 in Rio) and 10 users's had less than 8 years of study. The age mean was 44 years, with minimum age with 30 years and maximum 64 a. We identified the following categories from data analysis: self experience/selfawareness; illness process effects; diagnosis and diagnosis effects; existence and coping strategies;possibilities related to the future; recovery process causes and contingences; idea of cure/mental health increasing; CAPS and treatment context; life dynamic context and family and interpersonal relations and continuity/discontinuity of experience. We found as well different narrative modes or types, such as: cause and contingence; prototypes; description of experience; ethical and moral narratives and embodied narratives. In the perspective of users, the recovery process is characterized as a non-linear and complex process, which involves different dimensions of daily life. Despite of glimping the possibility of mental health increasing, the cure and the return to pré-morbid state seems to be a remote possibility for the users which indicates the co-existence of more and/or less auspicious perspectives related to the recovery process
Mestrado
Política, Planejamento e Gestão em Saúde
Mestre em Saude Coletiva
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Love, Beverly. „The cycle of relapse and recovery of substance misusing offenders on a community based rehabilitation programme : the impact of childhoods, family, relationships, significant life events and psychological wellbeing : an interpretative phenomenological analysis and approach“. Thesis, University of Surrey, 2018. http://epubs.surrey.ac.uk/845638/.
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Background and aims There is a paucity of research into the relapse and recovery of Class A drug misusing offenders who are part of the Drug Interventions Programme (DIP). The key aims of the DIP, a UK Government criminal justice strategy, are to reduce Class A drug misuse and the [perceived] associated offending behaviour. This group have entrenched and long lasting addictions, with many ‘failed’ attempts at recovery. There is no published research about DIP clients, using a qualitative methodology, which explores childhoods, relationships, psychological health and significant life events and how these might impact on drug use, relapse and recovery from their perspective. The aim of the research was to ask community based DIP clients what they considered to be important factors in their relapse and recovery and to explore how they understand and make sense of these. Theories within the developmental psychology field, some of which have not been extensively applied within the addiction field, have helped to inform the research. Method and participants To address a gap in the field, an Interpretative Phenomenological Analysis (IPA) was adapted for use with a focus group design (four Focus Groups, total N= 10), to explore the value and merit of the research question. These findings helped to inform semi-structured interviews (N= 17) using IPA. Participants were adult men and women who were either current or past DIP clients recruited through the DIP teams in England. Findings The following themes were developed from the semi-structured interview study: 1) Experiences of abusive childhoods – links to emotions that were experienced as damaging/harmful and problem behaviours; 2) The divergent and damaged selves – links to substance misuse; and 3) Drug use to cope and survive dangerous events and trauma/responses. Recovery was about managing these in a healthier way. A fourth theme showed how participants’ experiences changed during transitions into and out of recovery, for example the presence or absence of supportive networks. Conclusion The research has implications for theory, policy, practice and future research. This includes the provision of trauma based therapy and supporting clients to manage their emotions as well as their wider mental health problems. The importance of an integrated framework of theories from a developmental attachment, trauma and family systems approach to inform training and practice are highlighted from the findings.
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Rumball, Freya. „Studying individual differences and emotion regulation effects on PTSD-like responding and recovery : a psychophysiological VR-trauma paradigm“. Thesis, University of Exeter, 2013. http://hdl.handle.net/10871/14171.
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Despite a high proportion of the population experiencing traumatic events within their lifetime, the number of individuals who go on to develop posttraumatic stress disorder (PTSD) is comparatively small; herein highlighting the importance of individual differences in imparting risk and resilience towards the development and maintenance of PTSD. Existing literature illustrates that biological and ecological factors are important in predicting PTSD development, with pathological vulnerabilities excepting their effects at pre- peri- and post trauma stages. Whilst cognitive and emotion based models of PTSD account for the role of a minority of known pre-trauma risk factors, individual differences in peri- and post trauma processes are held as critical to the development of PTSD. The broad range of risk factors implicated in the empirical literature, and necessity of traumatic exposure to PTSD, implicates the utility of a diathesis-stress conceptualisation of PTSD development. The current thesis employed an analogue VR-trauma paradigm to investigate the respective importance of vulnerability factors at each stage, in the prediction of analogue PTSD symptoms (memory problems, startle responses, re-exposure fear habituation), whilst measuring affective and electrophysiological concomitance. Findings supported the importance of peri-traumatic responses in the prediction of PTSD, where present, showing increased predictive capacities over pre- and post-trauma factors. Biological and ecological factors also illustrated important predictive associations, with genetic SNPs implicated in reflex startle and cardiac responses towards intrusive memories. Moreover, peri-traumatic HR decelerations and accelerations mediated the association between pre-trauma factors and cued recall inaccuracy and intrusion severity respectively. Results support existing cognitive and emotional models in their emphasis on peri-traumatic processes but suggest the added utility of a diathesis stress conceptualisation of the development of PTSD, in highlighting the importance of pre-trauma biological and ecological risk and resilience factors.
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Martin, Zebulon. „Effects of Precipitation on the Acid Mine Drainage Impacted Hewett Fork Watershed“. Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1493754192668286.
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Rabbani, Fábio Faizi Rahnemay 1978. „Implementation of an airline recovery model in an event-based simulation“. Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17786.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2004.Includes bibliographical references (leaves 95-97).
Airlines maximize the use of their resources by minimizing the time between consecutive flight legs in their aircraft and crew schedules. As a result, bad weather or unscheduled aircraft maintenance events can have a significant impact on an airline's operations. The consequences of these disruptions are major costs to airlines, passengers and, ultimately, to the economy itself. In this thesis, the steps taken to implement an airline schedule recovery model in a realistic simulation of the U.S. airspace system are presented. The MIT Extensible Network Simulation (MEANS), an event based queueing model of the U.S. National Airspace System, can be used for tactical decision making, long term decision making and post priori event analysis. Thus, the addition of a recovery model is critical to obtain accurate simulation results. The airline recovery model consists of an optimized aircraft re-scheduling model, a crew re-assigning model and a heuristic passenger itinerary search model. The model was used to simulate airline recovery procedures over the course of a day of operations for different scenarios.
by Fábio Faizi Rahnemay Rabbani.
S.M.
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Yates, Bernice Helen. „Illness demands and social support during recovery from a cardiac illness event /“. Thesis, Connect to this title online; UW restricted, 1989. http://hdl.handle.net/1773/7268.
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Abraham, William Todd. „Dispositional optimism and pessimism stability, change, and adaptive recovery following life event experiences /“. [Ames, Iowa : Iowa State University], 2007.
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Picoco, Claudia. „Integrated Framework for Representing Recoveries Using the Dynamic Event Tree Approach“. The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu155550242815033.
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Sambo, Mogamat Fadeel. „An investigation into Business Continuity Plan (BCP) failure during a disaster event“. University of the Western Cape, 2012. http://hdl.handle.net/11394/4575.
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Magister Commercii (Information Management) - MCom(IM)This thesis examines what a Business Continuity Plan (BCP) should comprise off, as well as the difference between a BCP and a Disaster Recovery Plan (DRP) and the key elements of an effective BCP as well as the different types of disasters. It also investigates why companies that have BCP in place and conducts testing of their plan on a regular basis, either quarterly or bi-annually, still experience prolonged downtime during a disaster resulting in Service Level Agreements (SLA) not being met or major financial loses. It also inspects acceptable processes within a BCP to determine whether there are ways of improving these processes to prevent companies from experiencing prolonged downtime. The objective of this research is to determine and understand: Why organisations within the Western Cape experience prolonged downtimes during a disaster event. The potential deficiencies in a BCP and how they can be amended. A case study of four companies based in the Western Cape was conducted. These companies were chosen because each of them has a BCP in place and each have experienced prolonged downtime during a disaster. Qualitative interviews with the aid of an open-ended questionnaire were used to interview the BCP or Risk Manager of each company. The data was analysed to determine what the causes of their prolonged downtime were during a disaster. In the analysis and findings process each company is presented as a separate case study. The intension with this research study is to add an additional concept to the Common BCP Process that was identified within this study and that formed the basis for the Conceptual Framework, thereby reducing the downtime during a disaster for the companies that formed part of the research.
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Colley, Rich. „Hearts and minds : how do people experience and psychologically recover from traumatic cardiac treatment-related events?“ Thesis, Lancaster University, 2014. http://eprints.lancs.ac.uk/70736/.
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This thesis explores the psychological experiences relating to two types of potentially traumatic cardiac treatments: heart transplantation and implantable cardioverter defibrillators (ICD). It was hoped that such an endeavour would yield novel insights into these treatments that might facilitate the development of pertinent theory and psychotherapeutic approaches designed to alleviate the psychological distress that often results from them. The literature review comprises a metasynthesis of 19 papers derived from 13 different studies on the posttransplant psychological experiences of cardiac patients. This yielded four themes: 1. ‘The ambiguous presence of the donor’; 2. ‘Reborn but still not in control’; 3. ‘Striving for autonomy and normality’; and 4. ‘The search for acceptance and new meaning’. The chief novel finding from the synthesis was that successful psychological recovery from the myriad traumas associated with heart transplantation might best be characterised as a form of posttraumatic growth. The empirical paper comprises a qualitative exploration of the psychological experiences of six ICD-patients who have received ‘electrical storms’ from their devices i.e., episodes of multiple ostensibly therapeutic ‘shocks’. The use of interpretative phenomenological analysis enabled the exploration of divergences and convergences across the accounts, culminating in the identification of five themes: 1. ‘Fear of imminent death’; 2. ‘Living with a sense of dread’; 3. ‘Problematic attempts to regain control’; 4. ‘Beliefs about what constitutes acceptable support’; and 5. ‘The ongoing struggle to accept the device and its implications’. The analysis revealed that shocks may be triply traumatic, not least because they can make recipients fear that their lives are in imminent danger. Long-term post-storm adjustment may be influenced by the recipients’ locus of control orientation and by the degree to which they inhibit their emotions. The clinical, theoretical and research implications of both papers’ findings were explored.
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Buglass, Salome. „A study on the recovery of Tobago's coral reefs following the 2010 mass bleaching event“. Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/51752.
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The rise of ocean temperatures globally has become a grave threat to coral reefs, as it is increasing the severity and frequency of mass coral bleaching events and post-bleaching coral mortality. The continued existence of productive coral reefs will rely on corals’ ability to undergo recovery. In 2010, Tobago’s coral reefs were exposed to severe heat stress leading to mass bleaching of up to 29-60% of colonies at observed sites. This study evaluated the impact of coral bleaching and recovery of coral communities across three major reef systems in Tobago that differ in their exposure to terrestrial runoff. Assessments were done on the 1) density and composition of coral juveniles to characterise the levels of recruitment, 2) sedimentation rates and composition to understand its potential impact on recovery, and 3) species’ size frequency distributions in 2010, 2011 and 2013 to examine temporal changes among population size structure.
In 2013, low juvenile densities were observed (5.41 ± 6.31 m-²) at most reef sites, which were dominated by brooding genera while broadcasting genera were rare. Sediment material, measured in May and June (end of Tobago’s dry season) was mostly terrigenous and deposited at rates below coral stress threshold levels at most sites. Out of 27 species populations assessed between all sites, 4 populations mean colony size had significantly changed by the bleaching event, and only changed 5 populations over the two following years. The few populations that were significantly altered (mainly S. siderea and M. faveolata) after the bleaching saw a rise in small sized colonies, mostl likely as a result of colony fragmentation.
This study highlights that recovery via sexually produced recruits among broadcasting species was limited. While sedimentation rates were low, it is likely they are significantly higher throughout the rainy season, thus a long-term sedimentation study is highly recommended. Most coral populations resisted significant alteration from heat stress in 2010. However, given that future thermal stress is projected to become more intense, this study shows that mass bleaching disturbance could lead to decline coral population’s mean colony size, which could affect coral recovery as smaller colonies are less fecund.Arts, Faculty of
Geography, Department of
Graduate
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Nordick, Wendy Gale. „Insight into insight : a study on understanding schizophrenia“. Thesis, University of Canterbury. School of Social Work and Human Services, 2009. http://hdl.handle.net/10092/2531.
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The lack of insight into their illness continues to be a significant barrier to treatment for people with schizophrenia. However, some people with the illness do develop insight which then results in stability and recovery from their condition. Having met the criteria of good insight, nineteen participants participated in semi-structured interviews exploring the concept of insight and recovery in the context of their personal experiences. Research design used grounded theory methodology layered with a further narrative analysis. The literature review and theoretical perspectives of care provide the context for the research, thus illuminating the known and determining what mysteries in insight development remain.
Study findings revealed a Paradox of Insight within a 3-stage process of insight development: The Period of Chaos, the Dynamic Period, and the Period of Wisdom. An overarching Theory of Dangerousness explains the turning point from illness to recovery. This turning point occurs with a Trinity of Crisis. Within this theory, Four Constructions of Dangerousness explain how the meaning making of dangerousness affects recovery. Additionally, Four Types of Insight support this recovery.
The importance, meaning, and relevance of study findings for recovery are the focus of the discussion. Six inter-rator focus groups affirmed the findings. Policy and practice implications are discussed, along with recommendations for further research and the acknowledgement of study limitations.
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Hollis, Melanie. „Formulating Disaster Recovery Plans for New Zealand: using a case study of the 1931 Napier Earthquake“. Thesis, University of Canterbury. Geological Sciences, 2007. http://hdl.handle.net/10092/1456.
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Worldwide, the risks from natural and technological hazards has been mounting at an accelerating rate, improvements in forecasting and warning systems have reduced deaths, however monetary losses from disasters are overwhelming (Burby, 2004). Pre event planning for recovery helps to resolve issues before a disaster so recovery is more efficient and effective. It also ensures that the window of opportunity can be used to implement hazard mitigation measures to reduce the vulnerability of the area with the aim of improving resilience for the next disaster. International case studies were examined, the Northridge earthquake being the most successful recovery while Hurricane Katrina the least. The recovery of the Napier 1931 earthquake was chosen as a New Zealand case study; to date this is the country's worst disaster. Overall the recovery of Napier was a success, shops were opened in temporary premises to keep the economy going and mitigation measures were included in the rebuilding. The earthquake has had important flow on effects on the way that disasters are managed in New Zealand. To create pre event plans in New Zealand legislation needs to be modified, including recovery plans and development of shortcuts to reduce some procedures which lengthen the recovery process. These plans need to take into account our national vulnerability as well as regional vulnerabilities.
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Kalibjian, Jeffrey R. „Accountable Security Architectures for Protecting Telemetry Data“. International Foundation for Telemetering, 2001. http://hdl.handle.net/10150/606436.
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International Telemetering Conference Proceedings / October 22-25, 2001 / Riviera Hotel and Convention Center, Las Vegas, NevadaToday there are many security solutions available which can facilitate both protection and sharing of telemetry data. While the technologies behind these solutions are maturing [1] [2] [3], most products lack a consistent and coherent paradigm for enforcing who is able to access the secured data, what is done with it, and insuring it can be recovered if the person who secured it is disabled.
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Ozlu, Ahmet Oguzhan. „Optimization approaches for designing baseball scout networks under uncertainty“. Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/54983.
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Major League Baseball (MLB) is a 30-team North American professional baseball league and Minor League Baseball (MiLB) is the hierarchy of developmental professional baseball teams for MLB. Most MLB players first develop their skills in MiLB, and MLB teams employ scouts, experts who evaluate the strengths, weaknesses, and overall potential of these players. In this dissertation, we study the problem of designing a scouting network for a Major League Baseball (MLB) team. We introduce the problem to the operations research literature to help teams make strategic and operational level decisions when managing their scouting resources. The thesis consists of three chapters that aim to address decisions such as how the scouts should be assigned to the available MiLB teams, how the scouts should be routed around the country, how many scouts are needed to perform the major scouting tasks, are there any trade-off s between the scouting objectives, and if there are any, what are the outcomes and insights. In the first chapter, we study the problem of assigning and scheduling minor league scouts for Major League Baseball (MLB) teams. There are multiple objectives in this problem. We formulate the problem as an integer program, use decomposition and both column-generation-based and problem-specific heuristics to solve it, and evaluate policies on multiple objective dimensions based on 100 bootstrapped season schedules. Our approach can allow teams to improve operationally by finding better scout schedules, to understand quantitatively the strategic trade-offs inherent in scout assignment policies, and to select the assignment policy whose strategic and operational performance best meets their needs. In the second chapter, we study the problem under uncertainty. In reality we observe that there are always disruptions to the schedules: players are injured, scouts become unavailable, games are delayed due to bad weather, etc. We presented a minor league baseball season simulator that generates random disruptions to the scout's schedules and uses optimization based heuristic models to recover the disrupted schedules. We evaluated the strategic benefits of different policies for team-to-scout assignment using the simulator. Our results demonstrate that the deterministic approach is insufficient for evaluating the benefits and costs of each policy, and that a simulation approach is also much more effective at determining the value of adding an additional scout to the network. The real scouting network design instances we solved in the first two chapters have several detailed complexities that can make them hard to study, such as idle day constraints, varying season lengths, off days for teams in the schedule, days where some teams play and others do not, etc. In the third chapter, we analyzed a simplified version of the Single Scout Problem (SSP), stripping away much of the real-world complexities that complicate SSP instances. Even for this stylized, archetypal version of SSP, we find that even small instances can be computationally difficult. We showed by reduction from Minimum Cost Hamiltonian Path Problem that archetypal version of SSP is NP-complete, even without all of the additional complexity introduced by real scheduling and scouting operations.
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Wahl, Darin. „Exploring pathways to transformations in post-disaster-event communities: A case study on the Mad River Valley, Vermont, USA“. Thesis, Stockholms universitet, Stockholm Resilience Centre, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-110153.
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Climate change is already having a powerful effect on many areas through superstorms and flooding events. The flooding from tropical storm Irene in 2011 took Vermont by surprise, sparking momentum for change. While adaptive capacity as a response to climate change is vital, in many cases it may not be enough. This thesis developed an analytical framework for assessing transformative capacities from a linked social-ecological system perspective. By combining the literatures of transition management and resilience transformations, a cohesive framework emerged, with a scope incorporating multiple interacting scales and phases of transformation. The findings suggest a multiplicity of capacities are activated in a post-disaster setting, with networks, bridging organizations, and leaders as primary for restorative, adaptive, and transformative capacity activation, while innovation and obstacle negotiating as primary foci for informal networks and experimentation. Broadly, the framework when applied spatially (multi-scale) and temporally (multi-phase) was effective in uncovering dynamics of change processes. Additionally, a foundation of social, economic, and cultural aspects was shown to be influential in the development and mobilization of capacities, including community resilience, place attachment, and the long-term viability of the economic sector. This study makes a theoretical contribution by linking transitions and transformations literatures in a single framework, which can be tested in further studies.
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Snydeman, Colleen Kirwan. „Evaluation of the effect of the Peer Review Impacts Safety and Medical-errors (PRISM) Program on critical care nurses' attitudes of safety culture and awareness of recovery of medical errors:“. Thesis, Boston College, 2017. http://hdl.handle.net/2345/bc-ir:107293.
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Thesis advisor: Callista RoyProblem: Nurses act as safety nets, protecting patients from harm through the identification, interruption and recovery of medical errors and adverse events but we need to know more about ways to learn from safety events. This study aimed to address a gap in our understanding of how the PRISM Program affects nurses’ attitudes of safety culture, awareness of the recovery of medical errors, and practice as they relate to patient safety and error prevention. Participants: Critical care nurses in a large academic hospital from intervention (n=95) and control (n=90) units were surveyed pre and post-implementation of the PRISM Program. Intervention unit nurse response rates were 46% pre-survey and 41% post-survey. Control unit nurses' response rates were 38% for pre-survey and 31% for post-survey responses. A total of 42 (44%) intervention unit nurses participated in the PRISM Program. Methods: A pre/post-test design with an intervention and control unit was used to evaluate the effects of the PRISM Program on nurses’ responses on the Safety Attitude Questionnaire (SAQ) and the Recovery of Medical Error Inventory (RMEI) over a three month period. Nurses responded to questions about the impact on their practice. Findings: Analysis demonstrated a significant decrease in the SAQ working conditions post-survey subscale scores and significant findings in the main effects, decreased SAQ subscales: teamwork, job satisfaction, safety climate and perceptions of hospital management. The RMEI did not produce any significant findings. Comments provided insight into some nurses’ participation in the program and the impact on their practice. Implications: A significant decrease in post-survey scores indicate that informed nurses had a more critical view of safety culture and the environment they work in. Nurses expressed a desire to further use surveillance and additional manual checks that placed increased accountability and responsibility for their role in using strategies to keep patient safe and prevent errors and patient harm
Thesis (PhD) — Boston College, 2017
Submitted to: Boston College. Connell School of Nursing
Discipline: Nursing
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Thureborn, Rasmus, und Victor Klaxman. „Terrorism - ett hot mot ekonomin? : En eventstudie om hur terroristattacker påverkar den svenska aktiemarknaden“. Thesis, Södertörns högskola, Institutionen för samhällsvetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-27915.
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Syfte: Huvudsyftet med studien är att undersöka om avkastningen på den svenska aktiemarknaden påverkas av terroristattacker. Delsyftet är att vid en eventuell påverkan undersöka om reaktionen skiljer sig mot landet där attacken skett samt hur lång tid det tar för de olika aktiemarknaderna att återhämta sig. Teoretiskt perspektiv: Den teoretiska referensramen utgörs av teorin om den effektiva marknadshypotesen samt behavioral finance med fokus på flockbeteende. Avgränsningar: I studien undersöks åtta olika terroristattacker och dess påverkan på aktiemarknaden i Sverige och landet där attacken skett. Metod: Studien är kvantitativ och använder ett deduktivt angreppssätt. För att besvara frågeställningarna tillämpas en eventstudie där två eventfönster används. Ett eventfönster på en dag och ett längre på elva dagar samt en estimeringsperiod som omfattar 30 dagar. Insamlad data används för att mäta den avvikande avkastningen som eventuellt uppstår efter att en terroristattack ägt rum vilket säger om attacken haft någon påverkan. Slutsatser: Terroristattacker har en påverkan på den svenska aktiemarknaden och i de flesta fall är påverkan negativ. En slutsats som kan dras är att påverkan skiljer sig mellan Sverige och landet där attacken ägt rum men att det inte finns något tydligt mönster huruvida den svenska aktiemarknaden påverkas mer eller mindre. Slutligen kan det konstateras att påverkan av en terroristattack på aktiemarknaden är kortvarig och återhämtningen sker snabbt med undantag för attacken den 11 september 2001 i USA som hade en mer långvarig effekt.
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Elangovan, Saravanan, Jerry L. Cranford, Letitia Walker und Andrew Stuart. „A Comparison of the Mismatch Negativity and a Differential Waveform Response“. Digital Commons @ East Tennessee State University, 2005. https://dc.etsu.edu/etsu-works/1556.
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A mismatch negativity response (MMN) and a new differential waveform were derived in an effort to evaluate a neural refractory or recovery effect in adult listeners. The MMN was elicited using oddball test runs in which the standard and deviant stimuli differed in frequency. To derive the differential waveform, the same standard and deviant stimuli were presented alone. MMN responses were obtained by subtracting the averaged responses to standards from the deviants. The differential waveforms were obtained by subtracting the averaged responses to standards presented alone from deviants presented alone. Scalp topography for the MMN and differential waveforms were similar. A significant (p
Se obtuvo una respuesta de negatividad desigual (MMN) y una nueva onda ?diferencial? en un esfuerzo por evaluar un efecto neural refractario o de recuperación en sujetos adultos. La MMN fue generada utilizando cursos peculiares de prueba en los que el estimulo estándar y el alterado tenían frecuencias diferentes. Para derivar la onda diferencial, se presentaron el mismo estímulo estándar y el alterado en forma aislada. Las respuestas MMN se obtuvieron restando las respuestas promediadas estándar de las alteradas. Las formas de onda diferenciales se obtuvieron restando las respuestas promediadas a estímulos estándar presentados aisladamente, de los estímulos alterados presentados también en forma aislada. La topografía craneana de los MMN y las onda diferenciales fueron similares. Se encontraron correlaciones positivas y negativas significativas (p
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Ferreira, Ronaldo Rodrigues. „The transactional HW/SW stack for fault tolerant embedded computing“. reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/114607.
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O desafio de implementar tolerância a falhas em sistemas embarcados advém das restrições físicas de ocupação de área, dissipação de potência e consumo de energia desses sistemas. A necessidade de otimizar essas três restrições de projeto concomitante à computação dentro dos requisitos de desempenho e de tempo-real cria um problema difícil de ser resolvido. Soluções clássicas de tolerância a falhas tais como redundância modular dupla e tripla não são factíveis devido ao alto custo em potência e a falta de um mecanismo para se recuperar erros. Apesar de algumas técnicas existentes reduzirem o overhead de potência e área, essas incorrem em alta degradação de desempenho e muitas vezes assumem um modelo de falhas que não é factível. Essa tese introduz a Pilha de HW/SW Transacional, ou simplesmente Pilha, para gerenciar de maneira eficiente as restrições de área, potência, cobertura de falhas e desempenho. A Pilha introduz uma nova estratégia de compilação que organiza os programas em Blocos Básicos Transacionais (BBT), juntamente com um novo processador, a Arquitetura de Blocos Básicos Transacionais (ABBT), a qual provê detecção e recuperação de erros de grão fino e determinística ao usar o BBT como um contâiner de erros e como unidade de checkpointing. Duas soluções para prover a semântica de execução do BBT em hardware são propostas, uma baseada em software e a outra em hardware. A área, potência, desempenho e cobertura de falhas foram avaliadas através do modelo de hardware do ABBT. A Pilha provê uma cobertura de falhas de 99,35%, com overhead de 2,05 em potência e 2,65 de área. A Pilha apresenta overhead de desempenho de 1,33 e 1,54, dependento do modelo de hardware usado para suportar a semântica de execução do BBT.Fault tolerance implementation in embedded systems is challenging because the physical constraints of area occupation, power dissipation, and energy consumption of these systems. The need for optimizing these three physical constraints while doing computation within the available performance goals and real-time deadlines creates a conundrum that is hard to solve. Classical fault tolerance solutions such as triple and dual modular redundancy are not feasible due to their high power overhead or lack of efficient and deterministic error recovery. Existing techniques, although some of them reduce the power and area overhead, incur heavy perfor- mance penalties and most of the time do not assume a feasible fault model. This dissertation introduces the Transactional HW/SW Stack, or simply Stack, to effi- ciently manage the area, power, fault coverage, and performance conundrum. The Stack introduces a new compilation strategy that assembles programs into Transac- tional Basic Blocks, together with a novel microprocessor, the TransactiOnal Basic Block Architecture (ToBBA), which provides fine-grained error detection and deter- ministic error rollback and elimination using the Transactional Basic Blocks (TBBs) both as a container for errors and as a small unit of data checkpointing. Two so- lutions to sustain the TBB semantics in hardware are introduced: software- and hardware-based. Stack’s area, power, performance, and coverage were evaluated using ToBBA’s hardware implementation model. The Stack attains an error correc- tion coverage of 99.35% with 2.05 power overhead within an area overhead of 2.65. The Stack also presents a performance overhead of 1.33 or 1.54, depending on the hardware model adopted to support the TBB.
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Orire, Endurance. „The techno-economics of bitumen recovery from oil and tar sands as a complement to oil exploration in Nigeria / E. Orire“. Thesis, North-West University, 2009. http://hdl.handle.net/10394/5704.
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The Nigeria economy is wholly dependent on revenue from oil. However, bitumen has been discovered in
the country since 1903 and has remained untapped over the years. The need for the country to
complement oil exploration with the huge bitumen deposit cannot be overemphasized. This will help to
improve the country's gross domestic product (GDP) and revenue available to government. Bitumen is
classifled as heavy crude with API (American petroleum Institute) number ranging between 50 and 110
and occurs in Nigeria, Canada, Saudi Arabia, Venezuela etc from which petroleum products could be
derived.
This dissertation looked at the Canadian experience by comparing the oil and tar sand deposit found in Canada with particular reference to Athabasca (Grosmont, Wabiskaw McMurray and Nsiku) with
that in Nigeria with a view of transferring process technology from Canada to Nigeria. The Nigeria and Athabasca tar sands occur in the same type of environment. These are the deltaic, fluvial marine deposit in an incised valley with similar reservoir, chemical and physical properties. However, the Nigeria tar sand is more asphaltenic and also contains more resin and as such will yield more product volume during
hydro cracking albeit more acidic. The differences in the components (viscosity, resin and asphaltenes
contents, sulphur and heavy metal contents) of the tar sands is within the limit of technology adaptation.
Any of the technologies used in Athabasca, Canada is adaptable to Nigeria according to the findings of this research.
The techno-economics of some of the process technologies are. x-rayed using the PTAC (petroleum
technology alliance Canada) technology recovery model in order to obtain their unit cost for Nigeria
bitumen. The unit cost of processed bitumen adopting steam assisted gravity drainage (SAGD), in situ
combustion (ISC) and cyclic steam stimulation (CSS) process technology is 40.59, 25.00 and 44.14
Canadian dollars respectively. The unit cost in Canada using the same process technology is 57.27, 25.00
and 61.33 Canadian dollars respectively. The unit cost in Nigeria is substantively lesser than in Canada.
A trade off is thereafter done using life cycle costing so as to select the best process technology for the
Nigeria oil/tar sands. The net present value/internal rate of return is found to be B$3,062/36.35% for
steam assisted gravity drainage, B$I,570124.51 % for cyclic steam stimulation and B$3,503/39.64% for in
situ combustion. Though in situ combustion returned the highest net present value and internal rate of
return, it proved not to be the best option for Nigeria due to environmental concern and response time to
production. The best viable option for the Nigeria tar sand was then deemed to be steam assisted gravity
drainage.
An integrated oil strategy coupled with cogeneration using MSAR was also seen to considerably amplify
the benefits accruable from bitumen exploration; therefore, an investment in bitumen exploration in
Nigeria is a wise economic decision.Thesis (M.Ing. (Development and Management))--North-West University, Potchefstroom Campus, 2010.
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Becker, Andrew John. „Impact of precipitating events on pediatric chronic pain recovery“. Thesis, 2016. https://hdl.handle.net/2144/16808.
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OBJECTIVES: 1) To measure the prevalence of precipitating events in pediatric chronic pain patients and 2) to compare pain and functional disability outcomes at evaluation and 4-month follow-up by presence and type of precipitating event.
METHODS: Precipitating events (e.g., injury) were coded from the medical record for 401 youth (6-19) who presented to a tertiary care chronic pain clinic. Four-month follow-up disability and pain were collected for 187 patients. In addition to frequency of events, we examined differences in pain and disability measures by event type at evaluation and follow-up using multiple statistical analysis strategies.
RESULTS: Two-thirds of patients had a precipitating event prior to pain onset. Injury was the most common (55%), followed by chronic disease (23%), infection/illness (12.8%), and surgery (7.5%). Patients whose pain was triggered by injury reported the highest average pain levels, F(3, 340)=2.67, p<.05 and functional disability, F(3, 295)=3.54, p<.05. There were multiple cases of event groups that had significantly different baseline and follow-up psychological measures when compared to the rest of the patient population. Trajectories of pain and disability did not differ between patients with and without a precipitating event. Patients with injuries reported greater improvement in functional disability at follow-up (time x injury) F(1, 183)=4.88, p<.05 whereas patients with chronic disease reported less improvement in disability (time x chronic disease), F(1, 183)=5.49, p<.05. No other interactions were significant for disability or pain.
CONCLUSIONS: A majority of patients had experienced some form of precipitating event prior to their pain onset, and the presence of a precipitating event had varied effects on the treatment outcomes of patients at four-month follow-up. Although patients with injuries presented with greater disability and pain, they had significantly more improvement, while chronic disease patients were less likely to improve in terms of functional disability. Type of precipitating event appears to be associated with treatment response and can inform clinical prognoses.
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Cohen, Lawrence J. 1958. „Coping with traumatic events : a theoretical model and a study of recovery from rape“. Phd diss., 1985. http://hdl.handle.net/10161/13561.
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The study of coping with stress has been disjointed, lacking a coherent model. The present work proposes a theoretical framework for understanding coping based on approach and avoidance. Approach and avoidance are discussed in terms of the psychoanalytic concepts of defense and working through and other historical precursors as well as recent research on coping with traumatic events. Two experiments are presented. The first consists of a scale-construction study of the Cohen Roth Approach Avoidance Scale, a self- report measure of coping strategies. A revised version of this scale is proposed based on factor-analytic data from a mixed-stress sample. Experiment 2 is a study of the long-term impact of rape. Seventy-three women, who were victims of rape an average of eight years ago, were given questionnaires covering the following areas: demographics, nature of the assault, coping styles, and current level of functioning. Most of the sample was found to still be in moderate to severe distress. The relationships between outcome and demographics, situational variables, and behavior after the assault are discussed in the context of prior research in this area. Approach and avoidance strategies, measured by the revised Cohen Roth Approach Avoidance Scale, had a complex relationship with outcome. This relationship is discussed in the context of the theoretical model of coping presented in the Introduction, focusing on the difficulty women have in resolving the trauma of rape.This thesis was digitized as part of a project begun in 2014 to increase the number of Duke psychology theses available online. The digitization project was spearheaded by Ciara Healy.
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Saboori, Anooshiravan. „Fault recovery using discrete event models“. Thesis, 2005. http://spectrum.library.concordia.ca/8480/1/MR10250.pdf.
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In this thesis, we study the synthesis of fault recovery procedures using discrete-event models. It is assumed that the faults are permanent and that a diagnosis system is available that detects and isolates the faults with a bounded delay. Thus, the combination of the plant and the diagnosis system, as the system to be controlled, will have three modes: normal, transient and recovery. Initially, the plant and thus the system to be controlled, are in the normal mode. Once a fault occurs in the plant, the system (to be controlled) enters the transient mode. After the fault is diagnosed by the diagnosis system, the system enters the recovery mode. We study the design of a nonblocking supervisor that enforces the specifications of the system in all three modes. The solution is obtained by first transforming the problem to an equivalent Robust Nonblocking Supervisory Control Problem under Partial Observation (RNSC-PO) and then solving the robust control problem.
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Krejčí, Zuzana. „Připravenost absolventů vzdělávacích kurzů na hlavního vedoucího zotavovacích akcí pro děti a mládež k výkonu funkce“. Master's thesis, 2021. http://www.nusl.cz/ntk/nusl-446354.
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The main goal of the thesis is to find out the subjective perception of the quality of the main leader's educational course and its practical benefits for graduates and to analyze the theoretical content/content part of the course itself. Based on these findings, the work formulates proposals for possible changes to qualification standard issued by the National Qualifications Framework with effect from December 2015, which is the basis for accreditation of the course and its design. The theoretical part of the final work discusses the importance of professionalization in adult education, its impact on the quality of education and the importance of the profession. Nor does it omit the legislative requirements governing further adult education. It also includes a detailed description of the qualification standard of the main leader in the Czech Republic and its comparison with possible foreign concepts, examples of other selected professional qualifications in the field of non-formal and leisure education of children and youth. It also acquaints the reader with the fixed criteria for organizing the recovery events themselves or with the requirements for the personality of the main leader, both formally and informally. The empirical part is based on the method of a questionnaire survey, the key...
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Harrison, R. (Nee Sirriyeh R. )., R. Lawton, J. Perlo, P. Gardner, Gerry R. Armitage und J. Shapiro. „Emotion and coping in the aftermath of medical error: A cross country exploration“. 2013. http://hdl.handle.net/10454/5552.
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Objectives: Making a medical error can have serious implications for clinician wellbeing, affecting the quality and safety of patient care. Despite an advancing literature base, cross-country exploration of this experience is limited and a paucity of studies has examined the coping strategies used by clinicians. A greater understanding of clinicians¿ responses to making an error, the factors that may influence these, and the various coping strategies used are all essential for providing effective clinician support and ensuring optimal outcomes.
The objectives were therefore to investigate a) the professional or personal disruption experienced after making an error, b) the emotional response and coping strategies used, c) the relationship between emotions and coping strategy selection, d) influential factors in clinicians¿ responses, and e) perceptions of organisational support.
Methods: A cross-sectional, cross-country survey of 265 physicians and nurses was undertaken in two large teaching hospitals in the UK and USA.
Results: Professional and personal disruption was reported as a result of making an error. Negative emotions were common, but positive feelings of determination, attentiveness and alertness were also identified. Emotional response and coping strategy selection did not differ due to location or perceived harm, but responses did appear to differ by professional group; nurses in both locations reported stronger negative feelings after an error. Respondents favoured problem-focused coping strategies and associations were identified between coping strategy selection and the presence of particular emotions. Organisational support services, particularly including peers, were recognised as helpful, but fears over confidentiality may prohibit some staff from accessing these.
Conclusions: Clinicians in the UK and US experience professional and personal disruption after an error. A number of factors may influence clinician recovery; these factors should be considered in the provision of comprehensive support programmes so as to improve clinician recovery and ensure higher quality, safer patient care.British Psychological Society Travel Grant
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Serrano, Ana Rita Neves. „Importância e efeitos de incidentes críticos na satisfação e lealdade do cliente“. Master's thesis, 2009. http://hdl.handle.net/10362/2632.
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Dissertação apresentada como requisito parcial para obtenção do grau de Mestre em Estatística e Gestão de InformaçãoÉ importante perceber quais os incidentes que levam os clientes a abandonarem uma empresa, é igualmente importante perceber como uma empresa os pode evitar. Existem vários tipos de incidentes consoante o tipo de serviço e o contexto em que eles ocorrem, mas todos provocam alterações no comportamento dos clientes que podem ser benéficos ou não para a empresa. Assim, para garantir a permanência dos clientes como tal, as empresas querem clientes leais e satisfeitos que passem a palavra (positiva), e para tal têm de ter conhecimento desses mesmos clientes e prever de certa forma as razões de um possível abandono. Os incidentes críticos podem ser definidos consoante a situação a que se referem, no entanto acabam por se enquadrar em dois grandes grupos – Positivos ou Negativos. No fundo, são acontecimentos, momentos, experiências que ocorrem durante a relação cliente-empresa podendo alterar o comportamento do consumidor. São os incidentes críticos negativos que têm um maior efeito na confiança, satisfação e lealdade do cliente tendo um maior impacto na satisfação. Enquanto que os incidentes críticos positivos fomentam a satisfação do cliente, lealdade do cliente e intenções de compra, os incidentes críticos negativos afectam o comportamento do consumidor e levam a reclamações do consumidor, redução na boa vontade em ser cliente da firma de retalho, e em espalhar um comportamento de Word-of-mouth negativo. A intensidade e severidade de um evento, influenciam também o comportamento dos consumidores e quanto maior a intensidade e severidade desse evento, maiores serão os efeitos nocivos na satisfação e lealdade dos clientes.(...)
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Moradi, Abdolmajid. „Hierarchical modular fault recovery in discrete-event systems“. Thesis, 2006. http://spectrum.library.concordia.ca/8941/1/MR14275.pdf.
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This thesis studies the fault recovery problem in discrete-event systems using a two-level modular hierarchical approach. We extend the switching modular solutions for failure recovery problems for flat DESs in the framework of Ramadge and Wonham (RW) for supervisory control, using a two-level hierarchical model for DESs. Although in practice, modular design is found to be effective for a variety of systems, in the case of large-scale systems the state sizes may become too large, and so may the computational complexity of these systems for synthesis purposes. Therefore, a hierarchical approach may largely reduce the complexity of practical systems. We assume that the plant in our problem can be considered as a standard finite-state automaton, describing both normal and faulty behaviors of the system.
40
Moosaei, Mohammad. „Fault recovery in control systems : a discrete event system approach“. Thesis, 2003. http://spectrum.library.concordia.ca/2276/1/MQ83873.pdf.
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Fault recovery is a challenging task that is crucial in achieving stringent reliability and safety goals. In this thesis, the problem of fault recovery is studied in discrete-event systems (DES), assuming permanent failures. A diagnosis system is assumed to be available to detect and isolate faults with a bounded delay. Thus, the combination of the plant and diagnosis system can be thought of having three modes: normal, transient, and recovery. Initially the plant is in the normal mode. Once a failure occurs, the system enters the transient mode. After the failure is diagnosed by the diagnosis system, the system enters the recovery mode. This framework does not depend on the diagnosis technique used, as long as the diagnosis delay is bounded. As a result, the diagnosis and control problems are almost decoupled. In general, for each mode there is a set of specifications that have to be met. We propose a modular switching supervisory scheme. The proposed framework contains one normal-transient supervisor and multiple recovery supervisors each corresponding to a particular failure mode. Once a fault is detected and isolated by the diagnoser, the normal-transient supervisor is removed from the feedback loop and one of the recovery supervisors will take sole control of the system. The issue of non-blocking is studied and it is shown that essentially if the system under supervision is non-blocking in the normal mode, then it will remain non-blocking during the recovery procedure. Supervisor admissibility is also studied. This approach is developed for untimed DES and then extended to timed DES. In the process, previous results on supervisor design for untimed DES with partial observation are extended to timed DES. Various examples from manufacturing and process control are provided to illustrate the approach.
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Wang, Chenhuan. „Fault recovery in discrete-event systems using observer-based supervisors“. Thesis, 2005. http://spectrum.library.concordia.ca/8544/1/MR10253.pdf.
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We solve the supervisory design problem using a state-based approach. It is assumed that design specifications are given for normal, transient and recovery modes in terms of legal (safe) states. The system under supervision is also required to be nonblocking in normal and recovery modes. Following a modular switching approach, we propose supervisory schemes in which separate supervisor modules are designed for normal, transient and recovery modes. We consider failure accommodation in cases where recovery to normal operation is not possible and also recovery in cases in which it is possible to resume normal operation. For each case, we provide two solutions, one in which the recovery supervisor is in the feedback loop when the system is started in its normal mode, and another solution in which the recovery supervisor is engaged only when a fault is detected and isolated. The latter approach is less computationally complex to implement. We investigate supervisor admissibility and nonblocking property of the system under supervision. All of the supervisor modules are observer-based. In our opinion, the use of observer-based supervisors results in a more transparent solution and simplifies the analysis in our switching scheme when one supervisor replaces another in the feedback loop. In this thesis, in the process of our study of fault recovery, we also propose a systematic method for designing observer-based supervisors using normal languages.
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Koraginjala, Ganesh. „Fault recovery in discrete-event systems with intermittent and permanent failures“. Thesis, 2009. http://spectrum.library.concordia.ca/976428/1/MR63170.pdf.
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As systems grow more complex to cater to demanding operational requirements, they tend to suffer from increasing component failures. It is important to minimize the effect of these failures on the overall performance of these systems. In this thesis, fault recovery using discrete event systems theory is studied. It is assumed that the plant can be modeled as a finite state automaton, and that is prone to failures. For this study all events are assumed observable and the extension to the case of partial observation is left for future research. The problem of the synthesis of fault recovery procedures is studied. In particular, the cases are studied in which the plant may return to normal operation. This could be either because the failures are intermittent or because the plant has the capacity to repair or reset. Both of the above cases are studied in this thesis. It turns out that the problem is an instance of the problem of robust nonblocking supervisory control for countably infinite number of plants. The objective of the thesis is to obtain maximally permissive solution for the above problem. It is shown that the desired supervisor can be obtained as the maximally permissive solution of a robust control problem involving a bounded number of plants. Furthermore, an iterative procedure is provided to solve the original problem involving an infinite number of plants. The procedure is guaranteed to converge in a bounded number of steps. Several examples are provided to illustrate the proposed procedures
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„The inhibitory effect of genistein on the recovery from apoptotic event in cancer cells“. 2012. http://library.cuhk.edu.hk/record=b5549212.
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根據文獻研究記載，化療藥物可誘導癌細胞的凋亡，這是公認的化療療法的主要治療效果。作為一種程式性細胞死亡，積累的實驗證據表明，誘導所致的細胞凋亡是可逆轉的。這就引出了對於細胞凋亡恢復及其調節機制的相關問題。在這項研究中，我們證明了在質膜不對稱的散失和半胱天冬酶（caspase）啟動後，HeLa細胞的凋亡的啟動可逆轉。我們發現，除了被廣泛研究的抗增殖作用外，金雀異黃素(genistein)可抑制細胞凋亡的復蘇。即時定量PCR發現抗凋亡基因MDM2和XIAP在凋亡逆轉過程中表達水準上調，金雀異黃素可抑制其表達水準的上調。金雀異黃素，MDM2蛋白抑制劑和XIAP抑制劑的利用，造成復原細胞內持續的半胱天冬酶活性和增強的細胞死亡效果。然而，半胱天冬酶抑制劑並不能挽救金雀異黃素的抑制作用。流式細胞儀的研究表明，金雀異黃素可以導致凋亡逆轉細胞持久磷脂醯絲氨酸（PS）外化和逆轉細胞的細胞壞死。抑制半胱天冬酶活性將金雀異黃素的主要作用轉移到壞死效果。這些結果揭示了金雀異黃素抑制細胞凋亡逆轉的兩個可能的機制。
金雀異黃素能維持現有的細胞凋亡信號從而增強細胞凋亡。它也可以破壞凋亡恢復過程，導致繼發性壞死。金雀異黃素對於細胞凋亡逆轉的抑制可與常規化療相結合，以提高治療結果.
It is well documented that chemotherapeutical agents could induce apoptosis of cancer cells, which is recognized as a major treatment effect of chemotherapy. Accumulating evidence indicates that chemopreventive agents like soybean isoflavone genistein could potentiate the antitumor effect of chemotherapeutic drugs both in vivo and in vitro. The mechanistic basis of this augmentation effect by genistein remains to be fully elucidated.
In this study, we demonstrated while low-concentration ethanol stressed cancer cells could recover, the presence of genistein promoted the cell death of stressed cancer cells that displayed apoptotic features. In HeLa cells, quantitative real-time PCR revealed the up-regulation of anti-apoptotic genes MDM2 and XIAP during the recovery process, and genistein suppressed their expression. The application of genistein, MDM2 inhibitor and XIAP inhibitor to the recovering HeLa cells caused persistent caspase activity and enhanced cell death. However, the death-promoting effect of genistein was not rescued by caspase inhibitor. Flow cytometry study indicated that genistein treatment could lead to persistent phosphatidylserine (PS) externalization and necrotic events in the recovering HeLa cells. Caspase activity inhibition shifted the major effect of genistein to secondary necrosis.
These results suggested two possible mechanisms through which genistein promoted cell death in stressed HeLa cells. Genistein could maintain the existing apoptotic signal to enhance apoptotic cell death. It could also disrupt the recovering process in caspase-independent manner, which lead to secondary necrosis. These effects may account for the enhanced antitumor effect of chemotherapeutic drugs when they were combined with genistein.
Detailed summary in vernacular field only.
Detailed summary in vernacular field only.
Detailed summary in vernacular field only.
Xie, Xin.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2012.
Includes bibliographical references (leaves 79-90).
Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Abstracts in also in Chinese.
Cover Page
Statement --- p.i
Thesis Committee members --- p.ii
Acknowledgements --- p.iii
Abstract --- p.iv
Table of contents --- p.vi
List of abbreviations --- p.ix
List of figures and tables --- p.xi
Chapter Chapter 1 --- General Introduction --- p.1
Chapter 1.1 --- Introduction to general cancer biology --- p.1
Chapter 1.1.1 --- Overview of cancer --- p.1
Chapter 1.1.1.1 --- Classification of cancer --- p.1
Chapter 1.1.1.2 --- Risk factors of carcinogenesis --- p.2
Chapter 1.1.1.3 --- Cancer prevention and therapies --- p.4
Chapter 1.1.2 --- Models of cancer development --- p.6
Chapter 1.1.2.1 --- Multistage model of carcinogenesis --- p.6
Chapter 1.1.2.2 --- Colorectal cancer as an example of multistep / multigene carcinogenesis --- p.7
Chapter 1.1.2.3 --- Driving force for cancer development --- p.9
Chapter 1.1.3 --- Properties of cancer cells --- p.11
Chapter 1.2 --- Apoptosis and its roles in cancer development and treatment --- p.14
Chapter 1.2.1 --- Overview of apoptosis --- p.14
Chapter 1.2.2 --- Molecular mechanism of apoptosis --- p.15
Chapter 1.2.3 --- Positive and negative regulation of apoptosis --- p.18
Chapter 1.2.4 --- Apoptotic defects in cancer development --- p.20
Chapter 1.2.5 --- Apoptosis in cancer treatment --- p.23
Chapter 1.3 --- The reversibility of apoptotic events --- p.25
Chapter 1.4 --- Genistein and its relevance to cancer therapy --- p.27
Chapter 1.5 --- Objectives of the study --- p.29
Chapter Chapter 2 --- Materials and Methods --- p.30
Chapter 2.1 --- Materials --- p.30
Chapter 2.1.1 --- Cancer cell lines --- p.30
Chapter 2.1.2 --- Cell culture media and additives --- p.30
Chapter 2.1.3 --- Biochemical kits --- p.30
Chapter 2.1.4 --- Chemicals and reagents --- p.30
Chapter 2.1.5 --- Antibodies --- p.31
Chapter 2.1.6 --- Primers used for quantitative real-time PCR --- p.32
Chapter 2.1.7 --- Buffers and solutions --- p.32
Chapter 2.2 --- Methods and procedures --- p.33
Chapter 2.2.1 --- Cell culture establishment and cryopreservation --- p.33
Chapter 2.2.2 --- Living cell staining and imaging --- p.34
Chapter 2.2.3 --- MTT cell viability assay --- p.34
Chapter 2.2.4 --- BrdU cell proliferation assay --- p.35
Chapter 2.2.5 --- LDH cytotoxicity assay --- p.35
Chapter 2.2.6 --- Quantitative real-time PCR --- p.36
Chapter 2.2.7 --- Western blotting --- p.37
Chapter 2.2.8 --- Annexin V/ Propidium Iodide Assay --- p.38
Chapter 2.2.9 --- Trypan Blue Dye Exclusion Assay --- p.39
Chapter 2.2.10 --- Cleaved-Caspase 3 Immunostaining --- p.39
Chapter 2.2.11 --- Statistical Analysis --- p.39
Chapter Chapter 3 --- Results --- p.40
Chapter 3.1 --- Low concentration ethanol stressed cancer cells displayed apoptotic features and the stressed cell could recover after stress removal --- p.40
Chapter 3.1.1 --- Morphological changes and apoptotic marker activation in low concentration ethanol stress --- p.40
Chapter 3.1.2 --- In situ study of morphological changes and caspase 3 activation in HeLa --- p.44
Chapter 3.2 --- Genistein promoted the cell death of stressed cancer cells at non-cytotoxic concentration towards unstressed cells --- p.46
Chapter 3.2.1 --- Dose-dependent response of genistein on stressed and unstressed cells --- p.46
Chapter 3.2.2 --- In HeLa cells, genistein suppressed the recovery from stress treatment at non-cytotoxic concentration --- p.48
Chapter 3.2.3 --- Genistein promoted both apoptosis and necrosis in stressed cells. . --- p.49
Chapter 3.3 --- Genes involved in the recovery from stress treatment were influenced by genistein --- p.53
Chapter 3.3.1 --- Stressed HeLa cells were more sensitive to the inhibition of de novo synthesis --- p.53
Chapter 3.3.2 --- Expression profiles of genes involved in recovery and the influence of genistein --- p.55
Chapter 3.4 --- Like genistein, MDM2 and XIAP inhibitor potentiated the cell death and caused persistent caspase-3 activity in stressed cells --- p.58
Chapter 3.4.1. --- Stressed HeLa cells were much more sensitive to the inhibition of XIAP and MDM2 --- p.58
Chapter 3.4.2 --- The presence of inhibitor at non-cytotoxic concentration to unstressed cells suppressed the recovery of the stressed cells --- p.60
Chapter 3.4.3 --- Genistein, MDM2 inhibitor and XIAP inhibitor caused persistent apoptotic signals in recovering cells. --- p.61
Chapter 3.5 --- The death-promoting effect by genistein could be caspase-independent --- p.64
Chapter 3.6 --- Caspase activity abrogation shifted genistein’s action profile --- p.66
Chapter Chapter 4 --- Discussion and prospect --- p.70
Chapter 4.1 --- The apoptotic features were induced by low concentration ethanol stress --- p.70
Chapter 4.2 --- The apoptotic features caused by ethanol stress were reversible --- p.71
Chapter 4.3 --- Genistein showed death-promoting effects on the recovering cells --- p.72
Chapter 4.4 --- The genes (XIAP and MDM2) that were involved in the recovery process may function to terminate apoptotic signal --- p.73
Chapter 4.5 --- Genistein suppressed the upregulation of anti-apoptotic genes and promoted the expression of pro-apoptotic genes --- p.74
Chapter 4.6 --- The XIAP and MDM2 activity were essential for the recovery from stress --- p.75
Chapter 4.7 --- Caspase inhibition increased the secondary necrosis in recovering cells with genistein treatment --- p.76
Chapter 4.8 --- Hypothetic mechanism of genistein’s inhibitory effect on the recovery of stressed cells --- p.77
Chapter 4.9 --- Summary and prospects --- p.78
Reference list --- p.79
44
Deale, Maria. „Recovery dynamics of zooplankton following a mouth-breaching event in the temporarily-open Mdloti Estuary“. Thesis, 2010. http://hdl.handle.net/10413/8419.
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A high proportion of South Africa’s temporarily open/closed estuaries (TOCEs) occur along
the coast of KwaZulu-Natal. Mouth breaching events have major impacts on the biological
processes of an estuary, resulting in depletion of zooplankton via flushing and sediment
scouring. Mouth closure, usually within weeks of a breaching event, initiates a new phase of
stable physical conditions, leading to biological recovery. Therefore, the aim of this
investigation was: (1) to monitor the recovery of zooplankton abundance and biomass
following a breaching event in the Mdloti Estuary; (2) to compare the spatial and temporal
patterns in zooplankton distribution in the lower (mouth), middle and upper reaches (head) of
the Mdloti Estuary in terms of abundance and biomass just before, during and after a mouth
breaching event; and (3) to determine the key environmental variables influencing
zooplankton abundance and biomass during such a breaching event. The zooplankton
community of the Mdloti Estuary was studied over a 3-month period (27 January to 26 April
2004). The estuary was artificially breached on 12 February 2004, due to a fish kill, and
closed again naturally on 18 March 2004. Samples were collected twice a week in the lower,
middle and upper reaches using a WP-2 net and an epibenthic sled. Upon breaching, 98% of
zooplankton biomass was lost through sediment scouring and flushing. During the open
phase, zooplankton biomass showed a temporary recovery, but due to continual sediment
scouring and flushing, this was not sustained. One-way ANOVA revealed a significant
difference in total zooplankton abundance and biomass between phases (d.f.2, 59 = 55.0; p <
0.001; d.f.2, 59 = 15.51; p < 0.001). ANCOVA revealed significant differences between
zooplankton abundance and biomass (d.f.0.05;2,56=2.97, p = 0.05) at the different estuarine
reaches (d.f.0.05;2,56=5.51, p < 0.01) . In both cases, the lower reaches recovered quicker than
the middle and upper reaches. Thirty-five taxa were identified during the study, with only 10
contributing more than 1% of the total abundance or biomass. For the overall study, P. hessei
was the dominant species, accounting for 42% of the total abundance and 58% of the total
biomass. Keratella sp. 1 accounted for 17% and 11% of the total abundance and total
biomass, respectively, while harpacticoid copepodites and Acartia natalensis contributed 11%
and 10% to the total zooplankton abundance and 3% and 7% to the total zooplankton
biomass, respectively. Pre-breaching levels of zooplankton were reached only 9 days after
the closure of the mouth, during the recovery phase (mean 1.1 x 105 ± 6.5 x 104 SD ind.m3
and 2.4 x 102 ± 1.6 x 102 SD mg.m3). Zooplankton abundance and biomass reached a peak in
the lower reaches after 19 days, in the upper reaches after 28 days and in the middle reaches
after 35 days. The zooplankton biomass decreased slightly, but stabilised for the duration of
the study. During the study the state of the mouth was primarily responsible for regulating the
zooplankton abundance and biomass. However, the zooplankton in the different reaches did
not recover in synchrony after mouth re-closure because abiotic factors and food availability
were different in the three estuarine reaches.Thesis (M.Sc.)-University of KwaZulu-Natal, Westville, 2010.
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Clunas, Nathan Psychiatry Faculty of Medicine UNSW. „An auditory event-related potential study of recovery cycle effects in schizophrenia and bipolar disorder“. 2007. http://handle.unsw.edu.au/1959.4/40487.
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Previous event-related potential (ERP) studies have reported evidence of impaired auditory information processing in patients with schizophrenia. Some of these findings, such as the impaired P50 sensory gating, are consistent with a loss of inhibitory function. In auditory ERP studies using pairs of stimuli the size of the second response relative to the first response has been taken to indicate the extent to which responsiveness has recovered after a period of time. This variation of responsiveness has been termed the 'recovery cycle,' and is regarded as a measure of the time course of recovery of excitability of cortical neurons after stimulation. The recovery cycle of the auditory N1 ERP component was measured in 17 patients with schizophrenia and 17 age- and sexmatched healthy volunteers, and 12 patients with bipolar disorder and 12 age- and sex-matched healthy volunteers. Subjects performed a visual distraction task while listening to tone pairs, presented with intra-pair intervals of 1, 3, 5 or 7 s, with inter-pair intervals ranging between 9-13 s. Patients with schizophrenia had significantly reduced N1 amplitudes for S1 stimuli compared to healthy volunteers. For N1 amplitudes elicited by S2 stimuli there was a significant group effect whilst the main effect of intra-pair interval was not significant. A significant quadratic effect across ISI intervals was present in the healthy volunteer group, which was not significant in the schizophrenia group. Patients with bipolar disorder did not differ in N1 amplitudes elicited by S1 stimuli compared to healthy volunteers. There was no evidence of significant group differences in the recovery cycle effect between bipolar patients and matched healthy volunteers. The results provide evidence of inhibitory auditory processing deficits in schizophrenia, and further suggest that deficits in attention found in patients with schizophrenia, as indexed by reductions of auditory N1 amplitude, may be associated with impairments in inhibitory processes. In addition, different recovery cycle effects were found in patients with schizophrenia and those with bipolar disorder. Further study of the recovery cycle paradigm used in this study may lead to the development of an objective diagnostic tool.
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Porter, Stephen. „An architectual mind : the nature of real, created, and fabricated memories for emotional childhood events“. Thesis, 1998. http://hdl.handle.net/2429/9568.
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The false/ recovered memory debate has highlighted the complexities involved in assessing the
validity of memories for emotional childhood events. This dissertation begins by tracing the history
of the dominant school of thought on memory, the spatial perspective, as well as far less
conspicuous reconstructive views, and challenges influential modern spatial views (e.g., repression) in
light of a more defensible reconstructive model. The empirical component of this dissertation was
designed to compare the nature of real, created, and fabricated childhood memories for emotional
events within individuals. The critical issues being addressed in the experiment were: (1) whether
people could come to remember false ("created") memories for emotional events; (2) if so, whether
differences existed between created memories and real and/or intentionally lied about (fabricated)
memories, and; (3) whether there were individual differences in susceptibility to created memories.
Using a variation of an approach developed by Hyman, Husband, and Billings (1995), a
questionnaire was forwarded to participants' parents inquiring about six categories of negative
emotional events (serious medical procedure, serious animal attack, getting seriously hurt by another child, serious
indoor accident, serious outdoor accident, and getting lost) which the participant may or may not have
experienced between the ages of 4 and 10 years. Parents were asked to describe each event which
had occurred and to give a number of specific pieces of information relating to the event. Based on
the questionnaire information (85% response rate), 77 participants were interviewed about each of a:
(1) real event; (2) false event; and (3) fabricated event, in three weekly-spaced interviews. Over the
three interviews, the interviewers attempted to implant a created memory for the false emotional
event using encouragement, context reinstatement, guided imagery, and instructing daily recall
attempts. In the first interview, participant were asked about the real event and the false event
(counterbalanced), each introduced as a true event. They were provided the event tide and four
specific pieces of information to cue their memories (their age, location, season/ month, and people
present), based on questionnaire information (contrived for the false events). In the second
interview, participants were re-interviewed about their memories for the false event followed by the
implantation procedure. In the third interview, participants were again interviewed about the false
event with the same interview approach. Finally (after the last attempt at recalling the false event),
they were provided written instructions to fabricate a childhood memory, again with an event
category and four information clues, given preparation rime and a monetary incentive, and
interviewed about the fabricated event with the same format as the other two memory types.
Following transcription of the two or three (if a created memory had emerged) final memory
reports, the memories were compared on several dependent measures, collectively designated the
Memory Assessment Procedure (MAP), relating to their subjective and presentation characteristics.
Participants were then asked to complete a Dissociative Experiences Scale (DES) questionnaire to
examine if susceptibility to created memories was related to a general dissociative cognitive pattern.
Results indicated that twenty (26%) of participants created complete memories for the false
emotional events (seven animal attacks, five instances of getting seriously hurt by another child, four
serious outdoor accidents, three episodes of getting lost, and one medical procedure). Furthermore,
29.9% of participants reported some false information pertaining to the false event ("partial"
memories), for a total of 55.9% of participants recalling information relating to the false event. The
remaining participants (44.2%) reported no information pertaining to the false event. There were
several interesting differences among the three memory types, including stress ratings, vividness/
clarity ratings, confidence ratings, coherence, number of details, repeated details, and memory
failures. For example, when relating a created memory, participants were less confident and the
memories were less vivid and detailed compared to the other memory types, but similar in sensory
components and relevancy. On the other hand, participants were highly confident in their
fabricated memories which were rated as highly stressful and vivid, and the memories were detailed.
However, when relating a fabricated memory, participants repeated details and were less willing to
admit lacking memory, relative to real memories. Other findings are reported on the origin of the
created memories, age factors, memory perspective, reasons provided for first forgetting the false
event, and post-interview confidence in the created memories. On the DES , participants who had
come up with a partial or a created memory scored, on average, about twice as high as those
participants who had recalled no false information, indicating that susceptibility to memory
distortion may be related to a general dissociative pattern.
This was the largest scale created memory study to date and the first to look at a variety of
emotional childhood events and the content of the memories. Implications of the findings for the
false memory debate and memory assessment in forensic contexts are discussed.
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Huang, Ta-Shun, und 黃大順. „The Moderating Effect of Consumer Experience on How Service Recovery Influences the Evaluation of Corporate and Brand Images: A Case of the Apple's iPhone Upgrade Event“. Thesis, 2019. http://ndltd.ncl.edu.tw/handle/t2bpdh.
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碩士龍華科技大學
企業管理系碩士班
107
The popularity of smart phones has made more competition between operators. Therefore, consumers increasingly demanded the quality of products and services. Therefore, when products fail, remediation becomes a great concern. In 2017, the slowdown of the iPhone's software upgrades has seriously affected its sales and brand image, and it even led to serious consequences of consumer class actions. However, in addition to the general negative evaluation, there are other consumers who have different opinions, which in turn leads consumers to have different attitudes towards the Apple brand. This study argues that consumers have different perspectives because the consumer experience plays an important role in the past. That is, a positive consumer experience can often repel the mistakes made by the industry’s negligence, while a negative consumer experience may worsen the existing attitude towards the brand. In this study, we used iPhone consumers as the sample pool to control its characteristics, trying to understand the consumer's perception of the industry remediation, the subsequent corporate image and brand image under the influence of the aforementioned perception, and whether there is a difference in the evaluation. In this study, the questionnaire survey method was used to collect data, and a questionnaire was sent to a science and technology university in Taoyuan to answer the questions. The total number of the questionnaire was 163. The following findings were obtained from the data analysis results: 1.Service Remediation Awareness has a positive and significant impact on the corporate image and brand image. 2.Corporate image and brand image have a positive and significant impact on consumers’ loyalty. 3.The consumer experience has an intensifying effect on the relationship between service remediation perception and corporate image. 4.The consumer experience has an intensifying effect on the relationship between service remediation perception and brand image. Based on the results of the data analyses, this study proposes relevant suggestions for subsequent research and practical application.
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Busby, Eric. „The response to and recovery from the 2004 Eastern Bay of Plenty flood event : a thesis presented in partial fulfilment of the requirements for the degree of Master of Philosophy in Emergency Management at Massey University, Palmerston North, New Zealand“. 2010. http://hdl.handle.net/10179/1524.
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Incident Management Systems used in New Zealand have their origins in the fire-fighting organisations of the United States of America in the 1970’s. They began in an atmosphere of disciplined quasi-military emergency response organizations. Emergency management research, theory and practice have since evolved to incorporate comprehensive facets acknowledging disasters are about people, individually and collectively and their environment. Emergency Management now includes addressing psycho-social aspects. New Zealand emergency services adopted the Coordinated Incident Management System (CIMS) as a result of a requirement following the Cave Creek disaster of 1995, where a multi- agency response to the event was found to be unsatisfactorily managed. Emergency management in the modern era now requires the orchestration of many and varied agencies and organisations including government and non-government organisations. These organisations are not necessarily suited to command type management styles and during a recovery phase of an incident, an approach involving a coordination style is more appropriate than a command style. An examination of the 2004 eastern Bay of Plenty flood event highlights that improved coordination by using a suitable incident management system benefits the response and recovery process. The Eastern Bay of Plenty community has social and cultural characteristics that impact on the effectiveness of emergency management outcomes. An incident management system that improves communication within the multi-agency organisation and between an emergency management organisation and the disaster-affected communities contributes to overall trauma reduction by stress reduction and facilitating early support and interventions. This allows where necessary, for modern emergency management to use systems that can utilise the unique community cultures, structures and networks that form the dynamic communities that they serve. If disasters magnify pre-existing social and community problems then the incident management system model used in a disaster can determine the degree of magnification.
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Edelmann, Bernd Michael Kay. „The effects of bail-ins on bail-out expectations in the European Banking sector“. Master's thesis, 2017. http://hdl.handle.net/10400.14/22575.
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In the aftermath of the Great Recession, sovereign guarantees and the associated bail-out ex-pectations caused a distortion in the cost of funding and risk-taking behaviour of financial in-stitutions. The Bank Recovery and Resolution Directive (BRRD) aims to achieve financial sta-bility through transparency and incentivizing market discipline. The central tool of the BRRD, the bail in, is a burden-sharing mechanism reallocating the cost of the gone concern of financial institutions. Forcing shareholders and creditors to participate in potential losses must increase monitoring, thus reducing the moral hazard of large financial institutions. If the directive is credible, these changes in bail-out expectations must be reflected in the security prices of all affected banks. As changes in regulation are introduced over several years, effects on market prices are difficult to observe. I show that the recurring resolution events between 2011 and 2016 across several Eurozone countries affected bail-out expectations, reaching a critical level in 2013. The write down of junior debt in Cyprus caused highly significant reactions on bank charter values and CDS spreads. From 2014 to 2016, effects were inconsistent and lacked di-rection. This decrease in market reactions points to the achievement of bail-in expectations through commitment and consistent implementation. Bail-in expectations imply the anticipa-tion of a bail-in in case of bank financial distress, which requires strict and diligent monitoring.Na sequência da Grande Recessão, as garantias soberanas e as expectativas de bail out associ-adas causaram uma distorção no custo do financiamento e no comportamento de risco das ins-tituições financeiras. O Banco de Recuperação e Diretiva de Resolução (BRRD) visa alcançar a estabilidade financeira através da transparência e do incentivo à disciplina de mercado. A ferramenta central da BRRD, a fiança, é um mecanismo de repartição de encargos que reafecta o custo. Forçar os acionistas e credores a participar em perdas potenciais deve aumentar o mo-nitoramento moral hazard. Se a diretiva for credível, essas mudanças nas expectativas de resgate devem refletir-se nos preços de segurança. Como as mudanças na regulamentação são introdu-zidas ao longo de vários anos, os efeitos nos preços de mercado são difíceis de observar. Eu venho mostrar que os eventos de resolução recorrente entre 2011 e 2016 em vários países da zona do euro afetaram as expectativas de bail-out, atingindo um nível crítico em 2013. A redu-ção da dívida júnior em Chipre causou reações altamente significativas sobre os valores da carta patente do banco e os spams do CDS. De 2014 a 2016, os efeitos foram inconsistentes e care-ciam de direção. Esta diminuição nas reações do mercado aponta para a realização das expec-tativas de fiança através de compromisso e implementação consistente. As expectativas de fi-ança implicam a antecipação bail-in em caso de instabilidade financeira bancária, o que exige um monitoramento rigoroso e diligente.