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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
431

Investigating recovery in psychosis : a personal construct repertory grid study

Chadwick, Sarah Louise January 2011 (has links)
Research regarding the potential value of using a personal construct psychology (PCP) framework to explore recovery in psychosis has been minimal. Mental health policy guidelines (Shepherd et al., 2008) recommend that recovery in mental health is an important area that needs further research. This study aims to further understanding of recovery in service users with psychosis, by examining personal constructs elicited from participants, in contrast to the researcher supplying constructs (Bell and McGorry, 1992). Further, it attempts to define the degree of recovery using the Recovery Assessment Scale (RAS, Corrigan et al., 1999). Thirty two adults from the NHS and voluntary sector participated in the study; each completed a repertory grid (Kelly, 1955). The RAS enabled recovery to be defined by splitting the sample, and comparisons made between low to moderate and high recovery groups. The main findings of the study show that participants in the high recovery group showed less differentiation between their different selves; greater self-esteem; an experienced sense of control over their environment; a higher degree of quality and quantity of support; and a higher degree of hope and goal setting than participants in the low to moderate recovery group. In addition, content analysis (Landfield, 1971) of current self constructs showed that participants in high recovery construed themselves as being more self-sufficient, more active socially, and displayed higher tenderness compared to those in low to moderate recovery. Findings show how repertory grid methods can be applied clinically in order to help with case assessment and formulation, and help facilitate individually tailored therapeutic interventions to enhance recovery. For example, self differentiation findings suggest that to help an individual move towards a higher degree of recovery involves firstly loosening, and then tightening up their construing system. Secondly, self-esteem measures enabled identification of personal goals to strive towards in terms of an individual’s conception of their current and ideal self, and thus steps to take to progress toward recovery. Thirdly, the Pawn and Origin Scale (Westbrook and Viney, 1980) highlighted the degree of control over one’s external and internal world, thus highlighting areas that could be worked on to progress toward higher recovery. Clinical interventions addressing implicative dilemmas were also identified as enabling a change in behaviour, and therefore movement toward recovery. Limitations of the study are discussed, including using HICLAS (De Boeck, 1992) to measure self elaboration in recovery; and future research outlined, including exploring recovery in psychosis through a longitudinal study, and sampling across different mental health populations.
432

Service Recovery Paradox: A quantitative research concerning customer post-recovery satisfaction in the service sector

Claesson, Jennifer, Dijnér, Nina January 2017 (has links)
The phenomena when customers perceive a service as better after a failure and the following recovery process has occurred is called service recovery paradox. In the case of the paradox, customers are more satisfied post-recovery in comparison to if the failure would not have occurred. How to best manage a service recovery depends on the type of service failure since the recovery actions should be adjusted in order to match the failure in a suitable way. Three surveys were conducted in this study, one for each type of failure classified as (1) Service delivery failures, (2) Failure to respond to customer needs and requests and (3) Unprompted and unsolicited employee actions. Each survey presented a scenario in three parts. The first part of the scenario was neutral, the second part was post-failure and the third part was post-recovery. The respondents had to take a standpoint regarding their level of satisfaction after each scenario part. The findings from this study confirm the possibility for an increase in customer post-recovery satisfaction concerning (1) Service delivery failures combined with suitable recovery actions, hence the service recovery paradox was found. In the case of (2) Failures to respond to customer needs and requests combined with suitable recovery actions, the level of post-recovery customer satisfaction did not reach pre- failure satisfaction. The last type of service failure, (3) Unprompted and unsolicited employee actions, resulted in the lowest level of customer satisfaction both post-failure and post-recovery and was hence most far away from the paradox.
433

Vliv aktivního a paasivního zotavení na opakovaný krátkodobý motorický výkon / The ifluence of active and passive recovery for repetitive short-term motorised exercise

Šilar, Martin January 2015 (has links)
Title: The ifluence of active and passive recovery for repetitive short-term motorised exercise Objectives: To explore and discover the influence of active and passive recovery for repetitive short-term motorised exercise. Methods: Research of the professional publications used during the process. Target group sample consists of female footballers of FK Dukla Praha, who actively play the chosen sport - football. The entire sample were divided into two groups containing 5 members. Each group completed 2 tests with a different type of recovery and a 48 hour break. The results were measured with a photocell and then evaluated and utilised. Results: We discovered that during repetitive short-term motorised exercise passive recovery is better than active recovery. For passive recovery, the overall average of the measured values of 10.6 and active recovery, it was 10.67. Keywords: active recovery, passive recovery, motorised excercise, agilities of performance
434

Fatores intervenientes na cristalização da estruvita para a recuperação do fósforo de esgoto. / Intervenient factors in struvite crystallization for phosphorus recovery from sewage.

Aidar, Fernando Ngan 05 July 2012 (has links)
O ciclo aberto que o fósforo percorre na sociedade contemporânea pode ser visto como uma das maiores falhas da sua sustentabilidade. Sendo este um elemento básico para qualquer ser vivo, é realmente incômodo pensar que todo o fósforo que percorre as diversas instâncias da sociedade (como agricultura, alimentos ou consumo humano) provém direta ou indiretamente da mineração, portanto, de uma fonte esgotável. Se algumas estimativas da duração de toda a reserva de rochas fosfatadas do planeta não estivessem beirando a casa de um século, esse tema, acerca da geração de uma fonte renovável e sustentável de P, não teria o mesmo peso. A presente pesquisa, realizada com uma visão multidisciplinar levando em conta estudos mineralógicos; agrícolas; de crescimento de cristais; formação de carapaça de crustáceos marinhos; tratamento de esgoto; termodinâmica e cinética de precipitações químicas traz à luz da realidade nacional uma discussão acerca dos parâmetros que possibilitam a recuperação do fósforo (e do nitrogênio) diretamente do esgoto. Nos últimos anos, diversas tentativas de precipitação de estruvita no Brasil não foram bem sucedidas. Por esse motivo, essa dissertação foi desenvolvida com o intuito de contribuir com uma melhor compreensão a respeito dos fenômenos envolvidos na formação e crescimento desses cristais. Para isso, foram realizados ensaios com amostras de água ultrapura; efluente do reator anaeróbio de fluxo ascendente com manto de lodo da estação de tratamento de esgoto (ETE) Anhumas; urina pura e efluente dos processos de desaguamento do lodo da ETE Franca (um sistema de lodos ativados convencionais). Este último apresentou altas concentrações de cálcio, o maior interveniente na formação de estruvita, devido ao recebimento de lodo de estação de tratamento de água. A investigação experimental foi dividida em três etapas: (1) Primeiramente, as principais variáveis da reação de cristalização foram avaliadas e percebeu-se que, o que a rege é o quanto o meio se encontra supersaturado com relação aos sais de estruvita. Portanto, as variáveis que influenciam na supersaturação (como pH e concentração de reagentes) podem ser manipuladas para que a reação ocorra da maneira que for desejável. (2) Quando a água residuária contém cálcio, forma-se uma fase amorfa de carbonato de cálcio, que é muito reativa e bastante metaestável (que nesse caso acaba sendo estabilizada), na qual o fósforo e o magnésio adsorvem, podendo inclusive causar uma falsa impressão de que se formou estruvita, devido ao consumo dos reagentes. Deste entendimento, foi possível uma proposta bastante simples de solução para o problema: semeadura com cristais de estruvita. (3) A última etapa da dissertação explica o porquê da dificuldade de encontrar os picos de estruvita nos difratogramas de raios-x, tanto em algumas pesquisas nacionais quanto no começo do presente estudo. Esta dificuldade está relacionada às mudanças de fases do cristal quando exposto a altas temperaturas, isto é, durante o processo de secagem em estufa. / The opened cycle in which the phosphorus flows within the contemporary society is one of the biggest lack on its sustainability. Being this element so primary for the life of any being, it is really uncomfortable to think that all phosphorus that runs through all instances of our society (as agriculture, foods or human consumption) comes directly or indirectly from mining, thus a non-renewable source. By means of a multidisciplinary vision taking into account mineralogical, agriculture, crystal growth, marine crustaceous, wastewater treatment, chemical kinetics and thermodynamic studies the parameters which govern this crystallization reaction were brought to light, in order to make possible the recovery of phosphorus directly from sewage. For this reason, the development of this research was to create a better comprehension around the phenomena of formation and growth of struvite crystals. The crystallization media used were ultrapure water, effluent from an upflow anaerobic sludge bed reactor also treating domestic sewage in real scale, urine, and effluent of the dewatering processes of the sludge from a conventional activated sludge system (anaerobically digested) treating domestic sewage in real scale (because this WWTP receives WTP sludge with a high content of calcium, the major interfering ion on struvite formation). This study was made in three steps: (1) At first, the main parameters (usually controlled) of this crystallization reaction were evaluated. It was concluded that what controls the reaction is how much the crystallization media is supersaturated of the struvite salts. Thus, all parameters which have an influence on that (as pH and reagents concentration) can be manipulated for the reaction to occur in the desirable way. (2) The ion which interfere the most on the formation of struvite (calcium) was also studied, and the conclusion was that an amorphous calcium carbonate phase, was formed, which is a very metastable morphology of this salt, and thus it is not found in other conditions which are not as specific as those. With this theory, a proposal of a simple solution for this problem was formulated: struvite seeding. (3) The last step of this research explains why the characteristic peaks of struvite crystals were so difficult to be found on the x-ray diffractograms on the beginning of this study and by other Brazilian researchers. This difficult is related to the phase transitions due to the exposition of the crystals to higher temperatures.
435

Downhole Gasification (DHG) for improved oil recovery

Sánchez Monsalve, Diego Alejandro January 2014 (has links)
Gas injection, the fastest growing tertiary oil recovery technique, holds the promise of significant recoveries from those depleted oil reservoirs around the world which fall into a pressure range of (50-200) bar mainly. However, its application with the usual techniques is restricted by the need for various surface facilities such as enormous gas supply and storage. The only surface facility that downhole gasification of hydrocarbons (DHG) requires, on the other hand, is a portable electricity generator. DHG consists in producing inert gases, H2, CO, CO2 and CH4 through the steam reforming reaction of a part of the produced oil in a gasifier-reformer reactor positioned alongside the producer well in the reservoir. The gases, mainly H2 -the most effective displacing gas among produced gases- are injected into a gas cap above the oil formation, to increase oil recovery through a gas displacement drive mechanism. So far, DHG has only been tested under laboratory conditions using methane, pentane/reservoir gas and naphtha/reservoir gas as feedstock at conditions of reservoir pressure up to 130 bar. The studies varied reaction temperature, steam to carbon (S/C) ratio, catalyst types and catalyst loading in the gasifier-reformer reactor of a small pilot scale rig. These experimental studies demonstrated that pressure is one of the main factors influencing the effectiveness of the DHG process. From this starting point, the present investigation was directed at extending the pressure range up to 160 bar in the gasifier-reformer reactor using a naphtha fraction as feedstock in order to investigate whether the conversion and H2 concentration in produced dry gas can be maintained at acceptable levels under conditions of high pressure. To this end, experimental studies were carried out within the laboratory using the existing DHG rig on the small pilot scale, which was successfully commissioned and revamped for the purposes of this study. Initially, the investigation focused on exploring operating conditions, namely, steam to carbon (S/C) ratio, length of the gasifier-reformer reactor tube/ catalyst loading and the relative performance of two different catalysts. Subsequently, experiments on shutdown/start up cycles followed by variation of temperature were performed to simulate the effect of sudden electrical disruptions that usually occur in field operations. Experimental results using naphtha at pressure from 80 to 160 bar at 650 ºC, S/C= 6 achieved total feedstock conversion, no coke deposits and, most importantly, high H2 concentration in the produced dry gas (56-63 vol. % plus other gases). The best result was obtained with a crushed HiFUEL R110 catalyst (40-60 wt. % of NiO/CaO.Al2O3) and a reactor tube length of 72 cm, but the results with a C11-PR catalyst (40 wt. % of NiO/MgO.Al2O3) and a reactor tube length of 30 cm were similarly favourable. These results were supported by results of a numerical DHG model which indicated total feedstock conversion and values of H2 around 67 vol. % (using n-heptane as model surrogate). The results suggest that the DHG process is technically feasible at the pressure values studied, perhaps up to 200 bar where there are many hundreds of depleted, light oil reservoirs, especially in North America and other parts of the world below that pressure value.
436

Fatores intervenientes na cristalização da estruvita para a recuperação do fósforo de esgoto. / Intervenient factors in struvite crystallization for phosphorus recovery from sewage.

Fernando Ngan Aidar 05 July 2012 (has links)
O ciclo aberto que o fósforo percorre na sociedade contemporânea pode ser visto como uma das maiores falhas da sua sustentabilidade. Sendo este um elemento básico para qualquer ser vivo, é realmente incômodo pensar que todo o fósforo que percorre as diversas instâncias da sociedade (como agricultura, alimentos ou consumo humano) provém direta ou indiretamente da mineração, portanto, de uma fonte esgotável. Se algumas estimativas da duração de toda a reserva de rochas fosfatadas do planeta não estivessem beirando a casa de um século, esse tema, acerca da geração de uma fonte renovável e sustentável de P, não teria o mesmo peso. A presente pesquisa, realizada com uma visão multidisciplinar levando em conta estudos mineralógicos; agrícolas; de crescimento de cristais; formação de carapaça de crustáceos marinhos; tratamento de esgoto; termodinâmica e cinética de precipitações químicas traz à luz da realidade nacional uma discussão acerca dos parâmetros que possibilitam a recuperação do fósforo (e do nitrogênio) diretamente do esgoto. Nos últimos anos, diversas tentativas de precipitação de estruvita no Brasil não foram bem sucedidas. Por esse motivo, essa dissertação foi desenvolvida com o intuito de contribuir com uma melhor compreensão a respeito dos fenômenos envolvidos na formação e crescimento desses cristais. Para isso, foram realizados ensaios com amostras de água ultrapura; efluente do reator anaeróbio de fluxo ascendente com manto de lodo da estação de tratamento de esgoto (ETE) Anhumas; urina pura e efluente dos processos de desaguamento do lodo da ETE Franca (um sistema de lodos ativados convencionais). Este último apresentou altas concentrações de cálcio, o maior interveniente na formação de estruvita, devido ao recebimento de lodo de estação de tratamento de água. A investigação experimental foi dividida em três etapas: (1) Primeiramente, as principais variáveis da reação de cristalização foram avaliadas e percebeu-se que, o que a rege é o quanto o meio se encontra supersaturado com relação aos sais de estruvita. Portanto, as variáveis que influenciam na supersaturação (como pH e concentração de reagentes) podem ser manipuladas para que a reação ocorra da maneira que for desejável. (2) Quando a água residuária contém cálcio, forma-se uma fase amorfa de carbonato de cálcio, que é muito reativa e bastante metaestável (que nesse caso acaba sendo estabilizada), na qual o fósforo e o magnésio adsorvem, podendo inclusive causar uma falsa impressão de que se formou estruvita, devido ao consumo dos reagentes. Deste entendimento, foi possível uma proposta bastante simples de solução para o problema: semeadura com cristais de estruvita. (3) A última etapa da dissertação explica o porquê da dificuldade de encontrar os picos de estruvita nos difratogramas de raios-x, tanto em algumas pesquisas nacionais quanto no começo do presente estudo. Esta dificuldade está relacionada às mudanças de fases do cristal quando exposto a altas temperaturas, isto é, durante o processo de secagem em estufa. / The opened cycle in which the phosphorus flows within the contemporary society is one of the biggest lack on its sustainability. Being this element so primary for the life of any being, it is really uncomfortable to think that all phosphorus that runs through all instances of our society (as agriculture, foods or human consumption) comes directly or indirectly from mining, thus a non-renewable source. By means of a multidisciplinary vision taking into account mineralogical, agriculture, crystal growth, marine crustaceous, wastewater treatment, chemical kinetics and thermodynamic studies the parameters which govern this crystallization reaction were brought to light, in order to make possible the recovery of phosphorus directly from sewage. For this reason, the development of this research was to create a better comprehension around the phenomena of formation and growth of struvite crystals. The crystallization media used were ultrapure water, effluent from an upflow anaerobic sludge bed reactor also treating domestic sewage in real scale, urine, and effluent of the dewatering processes of the sludge from a conventional activated sludge system (anaerobically digested) treating domestic sewage in real scale (because this WWTP receives WTP sludge with a high content of calcium, the major interfering ion on struvite formation). This study was made in three steps: (1) At first, the main parameters (usually controlled) of this crystallization reaction were evaluated. It was concluded that what controls the reaction is how much the crystallization media is supersaturated of the struvite salts. Thus, all parameters which have an influence on that (as pH and reagents concentration) can be manipulated for the reaction to occur in the desirable way. (2) The ion which interfere the most on the formation of struvite (calcium) was also studied, and the conclusion was that an amorphous calcium carbonate phase, was formed, which is a very metastable morphology of this salt, and thus it is not found in other conditions which are not as specific as those. With this theory, a proposal of a simple solution for this problem was formulated: struvite seeding. (3) The last step of this research explains why the characteristic peaks of struvite crystals were so difficult to be found on the x-ray diffractograms on the beginning of this study and by other Brazilian researchers. This difficult is related to the phase transitions due to the exposition of the crystals to higher temperatures.
437

Recovery 101: Providing Peer-to-Peer Support to Students in Recovery

January 2018 (has links)
abstract: Collegiate recovery programs (CRPs) are university-sanctioned initiatives for students in recovery from alcohol and other drug addiction. Given the ever-rising rates of alcohol and opioid use and misuse, a great need exists to understand how to provide support for those who are considering recovery or who choose a recovery lifestyle in college. The purpose of this action research study was to examine peer-to-peer support for students in recovery. The development of two training innovations, Recovery 101 and Recovery Ally, were delivered to health and wellness peer educators called the Well Devil Ambassadors (WDAs) with the goal of equipping them to better support their peers in recovery. Learning objectives for the training were to gain knowledge about addiction and recovery and to enhance positive attitudes toward students in recovery, which could thereby increase self-efficacy and behavior intention to work with their peers in recovery. Mindfulness was included in the trainings to enhance the WDAs’ experience and provide tools for a self-care skillset. Quantitative data included pre, post, and follow-up surveys for the Recovery 101 training. Qualitative data included short-answer questions following Recovery 101 training and in-depth interviews following Recovery Ally training. Findings indicated that the information provided in Recovery 101 built the WDAs’ knowledge on the topics of addiction and recovery; hearing multiple perspectives from students in recovery allowed the WDAs to increase empathy toward students in recovery; and the building of knowledge, empathy, and mindfulness allowed the WDAs to gain self-efficacy and behavior intention when supporting their peers in recovery. / Dissertation/Thesis / Doctoral Dissertation Leadership and Innovation 2018
438

Recovery Stress Questionnaire: Marker of Drop Jump Performance and Under-Recovery?

Kinser, A. M., Kimmel, W. L., Wurtz, Brittany R., Sands, William A., Stone, Michael H. 01 July 2008 (has links)
Abstract available in the Journal of Strength and Conditioning Research.
439

Recovery-Oriented Care in a Psychiatric Health Setting

Hargrow, Renita Denise 01 January 2017 (has links)
Psychiatric recovery-oriented care is aimed at improving patients' quality of care while increasing the efficiency of health care providers. Despite the benefits of recovery-oriented care, this approach is often lacking in health care settings. The purpose of this project was to implement a recovery-oriented training on psychoeducational groups on a 26-bed psychiatric unit. The Iowa model of evidence-based practice and adult learning theory provided the framework for the project. The objectives were to (a) assess training needs, (b) evaluate barriers for recovery-oriented psychiatric nursing, (c) develop strategies to address barriers, (d) train staff in psychoeducational approaches, and (e) evaluate the training effectiveness. Information on knowledge, confidence, training needs and barriers in conducting psychoeducational groups was collected from 24 nursing staff. Open-ended interviews were conducted to ascertain staff perceptions on training needs and barriers. Interview responses were analyzed for common themes. Staff expressed a need for training and perceived a lack of knowledge and time as barriers in conducting psychoeducational groups. A questionnaire was used to collect data on knowledge (8 items) and confidence (5 items) pre and post training. Pre/post responses were analyzed using descriptive statistics and paired sample t test. Results showed a significant increase in staff knowledge, but not confidence in conducting psychoeducational groups from pre to posttest. Results may be used by psychiatric nursing staff to improve the quality of recovery-oriented care, patient satisfaction, and efficiency of the care delivery system. Recovery-oriented psychiatric care implicitly changes social norms by helping individuals with mental health problems integrate back into their communities.
440

Disaster recovery modeling for multi-damage state scenarios across infrastructure sectors

Deelstra, Andrew 18 September 2019 (has links)
Residents in urban areas depend on infrastructure systems to return to functionality quickly after disruptions from natural and man-made disasters to support their livelihood and well-being. This work seeks to improve the accuracy of infrastructure recovery time estimates by introducing mutually exclusive damage state modeling into the Graph Model for Operational Resilience (GMOR) and utilizing this capability for road recovery assessment in two case studies in the District of North Vancouver, British Columbia. The first case study also explores the recovery of water, wastewater, and power networks in the District, and demonstrates that power and road systems recover more slowly and are more variable in their recovery time than water distribution and wastewater collection systems. The second study specifically addresses important sections of road within the District and shows that intelligent prioritization of resource allocation for road repairs can improve recovery times by up to 37% compared to random ordering. / Graduate

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