Thesis (Ph.D.)--University of California, Berkeley, 2010. / "Spring 2010." Includes bibliographical references (p. 35-36).

Thesis (Ph.D.)--Indiana University, 2008. / Department of Philanthropic Studies, Indiana University-Purdue University Indianapolis (IUPUI). Advisor(s): David A. Reingold, Debra Mesch, David Van Slyke, Patrick Rooney. Includes vita. Includes bibliographical references (leaves 314-330).

Thesis (Ph.D.) - University of Queensland, 2005. / Includes bibliography.

Bibliography: leaves 211-234. The general problem of scheduling is investigated, with focus on jobs consisting of both independent and dependent programs. Using the constraint of restricted placement of programs, presents a scheduling system that produces heuristically good execution schedules in the absence of complete global system state information.

Η παρούσα διπλωματική εργασία εκπονήθηκε στο Εργαστήριο Ασύρματης Τηλεπικοινωνίας του τμήματος Ηλεκτρολόγων Μηχανικών και Τεχνολογίας Υπολογιστών. Ο στόχος της εργασίας αυτής ήταν η μελέτη της προκαλούμενης βελτίωσης στην απόδοση εύρους ζώνης με χρήση πολλαπλών συστημάτων HAPS σε κοινή περιοχή κάλυψης. Με γνώμονα τη συνεχώς αυξανόμενη ανάγκη του σύγχρονου ανθρώπου για ευρυζωνικές υπηρεσίες υψηλών ταχυτήτων σε περιοχές οι οποίες είναι φτωχές σε τηλεπικοινωνιακή κάλυψη καθώς και σε περιοχές με αυξημένη τηλεπικοινωνιακή κίνηση καταλήγουμε στο συμπέρασμα ότι οι τηλεπικοινωνίες με τη χρήση εναέριων πλατφορμών (HAPS) οι οποίες δρουν σε πολύ χαμηλότερο ύψος από τους δορυφόρους και με σημαντικά μικρότερες ισχείς , αποτελούν μια πολλά υποσχόμενη τεχνολογία για τα επόμενα χρόνια. Σημαντικός παράγων στον οποίο βασίζεται οι τεχνολογία των HAPS είναι η εξοικονόμηση του φάσματος συχνοτήτων με τη χρήση κοινής συχνότητας εκπομπής από όλες τις πλατφόρμες , γεγονός που οδηγεί βαθμιαία σε αύξηση των παρεμβολών που λαμβάνουν οι χρήστες. Στόχος μας ήταν να προσδιορίσουμε τις κατάλληλες συνθήκες και παραμέτρους ώστε ο χρήστης στο έδαφος να λαμβάνει έναν ικανοποιητικό λόγο σήματος προς θόρυβο συν παρεμβολές (CINR) ώστε να υπάρχει επαρκές εύρος ζώνης για τις τηλεπικοινωνιακές του ανάγκες. Για την εξαγωγή των γραφικών παραστάσεων χρησιμοποιήθηκε το πρόγραμμα Matlab R2010b. / This diploma thesis was developed at the Laboratory of Wireless Communications, at the Department of Electrical an Computer Engineering. The objective of this work was to study the improvement in the bandwidth efficiency that occurs by using multiple high-altitude-platformsystems (HAPS) serving a common coverage area. Considering the even increasing need of the modern people for high speed broadband applications in areas that have poor telecommunication coverage and also in areas that have an increased telecommunication traffic we came to the conclusion that the use of the HAPS operating in lower altitude comparing to the satellites and using even lower power levels, is a very promising technology for the years to come. A very important factor on which the HAPS technology is based on is the saving of the frequency spectrum by using the same transmission frequency from all the platforms, a fact that leads to an increasing interference level that the users receive. Our goal was to determine the proper conditions and parameters so as to the users on the ground receive a satisfying level of CINR in order to have enough bandwidth efficiency for his telecommunication needs. In order to export the graphics, we used Matlab R2010b.

The topic of regional innovation systems is one that has been covered extensively in prior research. It has influenced regional policy by providing context of how regional actors and firms interact and how they are affected by institutional guidance and formal structuring tools. An aspect that has not been covered to a sufficient extent is the prospect of self-sustaining or spontaneous collaborative efforts. This is an interesting area to consider because it questions the idea that regional innovation systems need institutional support to survive. Instead, it suggests that firms can collaborate simply through a mutual understanding of their situation and how an integration of their competences can prove beneficial to their system. The bottom line for well-functioning regional innovation systems are its ability to facilitate knowledge transfer for its actors. This raises the question of how firms’ knowledge transfer processes, its absorptive capacity is affected by regional innovation systems. The purpose of this study is to create a conceptual framework exploring how and why regional innovation systems facilitates firms’ absorptive capacity, as well as how they are affected by being either institutional or entrepreneurial. This has been done through an inductive multiple case study where 18 different cases of regional innovation systems were surveyed. The study resulted in a process model of how regional innovation systems evolve, its facilitating effect on firms’ absorptive capacity, and how entrepreneurial or institutional setups influence this evolution. Our findings suggest that regardless of being institutional or entrepreneurial, regional innovation systems follow a similar evolutionary process to facilitate firms’ absorptive capacity. It is rather suggested that each system has individually negative and positive effects on the process. Firms’ absorptive capacity is facilitated by regional innovation systems as they provide firms with an environment driving similar knowledge and problem sets, being a source of complementary knowledge and social integration mechanisms. The process model provides implications for regional policy makers to facilitate optimal conditions for actors in their regions, as well as for firms active in regional innovation systems.

Orientador: Eduardo Kokubun / Banca: Claudio Alexandre Gobatto / Banca: Vilmar Baldissera / Resumo: Conhecimentos sobre a participação dos metabolismos aeróbio e anaeróbio em exercício são importantes para compreender e prever os efeitos dos diferentes tipos de treinamentos. Muitos modelos têm sido propostos para a predição da participação dessas duas vias energéticas no exercício. Um deles, proposto em 1965, sugere a existência de uma intensidade de esforço, denominada potência crítica (PC), abaixo da qual o suprimento energético é dependente exclusivamente do metabolismo aeróbio. Até a intensidade da PC, o exercício pode ser realizado por longo tempo, sem exaustão. Acima dessa intensidade, as reservas anaeróbias de energia de dimensão finita denominada capacidade de trabalho anaeróbio (CTA), são requeridas e sua total depleção está associada com a exaustão. A aplicabilidade deste modelo vem sendo estudada e comprovada em exercícios contínuos, constituindo uma forma simples e não invasiva de se determinar as capacidades aeróbia e anaeróbia. O propósito deste estudo foi explorar o exercício intermitente através do modelo da potência crítica, principalmente quanto aos efeitos da duração da pausa na reposição da CTA. Indivíduos ativos foram submetidos a exercícios contínuos e intermitentes realizados em cicloergômetro, até a exaustão. Para os testes intermitentes, os regimes de esforço-pausa foram 15 s de exercício por 15 s, 30 s, 45 s e 60 s de pausa passiva. A PC e CTA foram determinadas a partir dos testes contínuos, através de regressão linear simples, segundo a equação P = CTA x 1/tlim + PC. A comparação entre as variáveis foi realizada através da análise de variância (ANOVA) para medidas repetidas, com nível de significância de 5% (p<0,05). Os principais resultados indicam que: da quantidade total de trabalho intermitente realizado, aproximadamente 58%, 85%, 88% e 90% correspondeu ao... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The knowledge of the contribution of aerobic and anaerobic metabolism during exercises plays a key role to anticipate the effects of different types of training. Many models have been proposed to predict the contribution of these two energetic pathways on the exercise work output. Among them, a model, proposed by Monod and Scherrer in 1965, suggests the existence of an exercise's intensity, named critical power (CP), below which the energetic supply is dependent, exclusively, on the aerobic metabolism. At the intensity corresponding to or below the critical power, the exercise can be done for a long time without exhaustion. Above this intensity, the finite anaerobic reserves of energy named anaerobic work capacity (AWC) are required and its total depletion is associated with exhaustion. The applicability of this model has been studied and confirmed in continuous exercises. It has been recognized as a simple and not invasive procedure to determine aerobic and anaerobic capacities. The purpose of this study was to explore the intermittent exercise through the critical power model, specifically the effects of the pause's duration on the replacement of the AWC. Active subjects were submitted to a continuous and intermittent ciclergometer exercises until exhaustion. For the intermittent tests, the exercise rest regimes were 15 s of exercise and 15 s, 30 s, 45 s and 60 s of passive recovery. The CP and AWC were determined by the results of continuous tests through a simple linear equation: P = AWC x 1/tlim + CP. The comparison among the variables was done by the analysis of variance (ANOVA) for repeated measures with a significance level of 5% (p<0,05). The main results indicated that: 1) from the total amount of intermittent work, approximately 58%, 85%, 88% and 90% was extra when compared to the continuous exercise for the same time of tests with 15 s, 30... (Complete abstract, click electronic address below) / Mestre

Introduction: This research portfolio set out to examine service user defined recovery in psychosis. A systematic review was undertaken to examine the evidence-base for the effectiveness of psychosocial interventions on personal recovery, empowerment and other recovery-related outcomes. An empirical study was conducted to examine the relationships between self-stigma, decisional capacity for treatment and personal recovery in service users with psychosis. Methods: A review of published literature identified ten randomised controlled trials investigating the effects of psychosocial interventions on personal recovery. A narrative synthesis was reported for findings relating to primary and secondary outcomes, and standardised effect sizes were calculated to quantify within-group change from pre-to post-intervention and follow-up. Studies were assessed for risk of bias. The empirical study recruited twenty-four participants with diagnoses of non-affective psychosis. Semi-structured interviews and self-report measures were administered to assess self-stigma, decisional capacity for treatment, psychopathology, emotional distress and personal recovery. Results: A small number of studies found that recovery-focused psychosocial interventions improved personal recovery. There were more consistent effects on psychiatric symptoms, functioning and depression. The empirical study found that self-stigma and personal recovery were associated with each other. Large effect sizes were found for the associations between self-stigma and symptoms. These associations persisted when controlling for personal recovery scores. Understanding of treatment was predicted by excitement symptoms, but no other prediction model emerged for decisional capacity. Conclusion: Taken together, the systematic review and empirical project support service user definitions of recovery which highlight the role of psychosocial factors. The systematic review found some evidence for the role of recovery-focused psychosocial interventions in improving personal recovery. Further research is needed so that interventions specifically targeting the processes in personal recovery can be developed. The findings from the empirical project suggested that interventions designed to overcome self-stigmatising beliefs and reduce emotional distress are likely to improve personal recovery outcomes in psychosis. More research is needed to develop a broader conceptualisation of decisional capacity in psychosis, to support the active participation of service users in their recovery journey.

The research presented in this thesis is to evaluate the feasibility of demountable shear connectors as an alternative to welded shear connectors in composite structures through push off tests and composite beam tests. Push off tests were conducted to examine the shear strength, stiffness and ductility of demountable shear connectors in composite structures. The experimental results showed that demountable shear connectors in composite structures have very similar shear capacity to welded shear connectors. The shear capacity was compared against the prediction methods used for the welded shear connections given in Eurocode 4 and AISC 360-10 and the methods used for bolted connections in Eurocode 3 and ACI 318-08. It was found that the AISC 360-10 and ACI 318-08 methods overestimated the shear capacity in some cases. The Eurocode method is conservative and can be utilised to predict the shear capacity of demountable connectors in composite structures. The experimental studies of two identical composite beams using demountable shear connectors and welded shear connectors showed very similar moment capacity. However, the specimen with demountable shear connectors was more ductile compared to the welded specimen. The experimental study suggests that the methods available in Eurocode 4 and BS 5950 for predicting moment capacity and mid span deflection can be adopted for composite beam with demountable shear connectors. In addition, a finite element analysis of push off test and beam test with demountable shear connectors was also conducted for parametric studies and results are used to evaluate the behaviour of composite structures.

This study investigates whether balanced forms of organizational cultures moderate the effects of potential and realized absorptive capacities (ACs) to simultaneously generate exploratory and exploitative innovations. Using empirical survey data collected from 138 small to medium-sized enterprises (SMEs), we applied partial least squares (PLS) structural equation modeling (SEM) combined with mediation and moderation analyses to test our hypotheses. Our results show that the effects of potential AC on organizations' exploratory and exploitative innovations are fully mediated by the organizations' realized AC. The positive effects of realized AC on innovation are contingent on the overall cultural balance of the organization, which, however, does not affect the strong link between potential AC and realized AC. We thus provide novel empirical insights into the multi-dimensional nature of AC and the importance of cultural equilibrium for both exploratory and exploitative innovation, which is of particular importance for ambidextrous SMEs facing dynamic markets.