917 resultados para Local linearization approach
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When ambient air quality standards established in the EU Directive 2008/50/EC are exceeded, Member States are obliged to develop and implement Air Quality Plans (AQP) to improve air quality and health. Notwithstanding the achievements in emission reductions and air quality improvement, additional efforts need to be undertaken to improve air quality in a sustainable way - i.e. through a cost-efficiency approach. This work was developed in the scope of the recently concluded MAPLIA project "Moving from Air Pollution to Local Integrated Assessment", and focuses on the definition and assessment of emission abatement measures and their associated costs, air quality and health impacts and benefits by means of air quality modelling tools, health impact functions and cost-efficiency analysis. The MAPLIA system was applied to the Grande Porto urban area (Portugal), addressing PM10 and NOx as the most important pollutants in the region. Four different measures to reduce PM10 and NOx emissions were defined and characterized in terms of emissions and implementation costs, and combined into 15 emission scenarios, simulated by the TAPM air quality modelling tool. Air pollutant concentration fields were then used to estimate health benefits in terms of avoided costs (external costs), using dose-response health impact functions. Results revealed that, among the 15 scenarios analysed, the scenario including all 4 measures lead to a total net benefit of 0.3M€·y(-1). The largest net benefit is obtained for the scenario considering the conversion of 50% of open fire places into heat recovery wood stoves. Although the implementation costs of this measure are high, the benefits outweigh the costs. Research outcomes confirm that the MAPLIA system is useful for policy decision support on air quality improvement strategies, and could be applied to other urban areas where AQP need to be implemented and monitored.
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This thesis is an examination of the ASEAN’s prospects in establishing regional competition policy in the Southeast Asia region, a topic of contemporary relevance in light of the ASEAN’s recent foray into the economic integration field on 31 December 2015. It questions whether the current approach undertaken by the ASEAN could contribute to an effective regional competition policy under the regional market integration. In answering this question, the thesis first critically surveys the current terrain of regional competition laws and policies in order to determine the possible existence of an optimal template. It argues that although the EU model is oft used as a source of inspiration, each regional organisation conceives different configurations of the model in order to best adjust to the local regional contexts. The thesis makes an inquiry into the narratives of the ASEAN’s competition policy, as well as the ASEAN’s specific considerations in the development of competition policy, before comparing the findings to the actual approaches taken by the ASEAN in its pursuit of regional competition policy. This thesis reveals that the actual approach taken by the ASEAN demonstrates an important discrepancy from the economic integration goal. The ASEAN applies a soft harmonisation approach regarding substantive competition law while refraining from establishing a centralised institution or a representative institution. The sole organ with regards to competition policy at the regional level is an expert organ. The thesis also conducts an investigation into the reception of the ASEAN’s regional policy by the member states in order to ascertain the possibility of the achievement of the ASEAN’s aspiration of regional competition policy. The study reveals that despite some shared similarities in the broad principles of competition law amongst the member states, the various competition law regimes are not harmonised thus creating challenging obstacle to the ASEAN’s ambition. The thesis then concludes that the ASEAN’s approach to regional competition law is unlikely to be effective.
An Estimation of Distribution Algorithm with Intelligent Local Search for Rule-based Nurse Rostering
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This paper proposes a new memetic evolutionary algorithm to achieve explicit learning in rule-based nurse rostering, which involves applying a set of heuristic rules for each nurse's assignment. The main framework of the algorithm is an estimation of distribution algorithm, in which an ant-miner methodology improves the individual solutions produced in each generation. Unlike our previous work (where learning is implicit), the learning in the memetic estimation of distribution algorithm is explicit, i.e. we are able to identify building blocks directly. The overall approach learns by building a probabilistic model, i.e. an estimation of the probability distribution of individual nurse-rule pairs that are used to construct schedules. The local search processor (i.e. the ant-miner) reinforces nurse-rule pairs that receive higher rewards. A challenging real world nurse rostering problem is used as the test problem. Computational results show that the proposed approach outperforms most existing approaches. It is suggested that the learning methodologies suggested in this paper may be applied to other scheduling problems where schedules are built systematically according to specific rules.
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This work is a study in the Local Productive Arrangement of confections from Agreste of Pernambuco, as a relevant sector in economic and social aspect. This research has as central aim to understand how the inter-organizational relations influence the collective efficiency of arrangement. The theoretical framework employed highlights the approaches that deal with the benefits of business agglomeration for the development of firms and regions. It has discussed the approach of small and medium enter prises and industrial districts (SCHMITZ, 1997), which introduce the concept of col lective efficiency, explaining that only those externalities explained by Marshall (1996) are not sufficient to explain the competitive advantage of enterprises, expanding the idea that organizations achieve competitive advantage not acting alone. To examine the influences of relations in the collective efficiency, it has been taken as analytical perspective theory of social networks (GRANOVETTER, 1973, 1985; BURT, 1992; UZZI, 1997) because it has believe that this approach provides subsi dies for a structural analysis of social relationships in face the behavior of human action. By examining the organizations in a social network, you should understand the reason of this establishment of the relationship, their benefits, and as the information flow takes place and density of links between the actors (Powell; SMITH-DOERR, 1994). As for the methods, this study is characterized as a case study, in according to the purposed objectives, in addition to qualitative method. Also, due to recovering of the historical milestones of the arrangement, it is used a sectional approach with longitudinal perspective (VIEIRA, 2004). The primary and secondary data were used in order to understand the evolutionary process of the sector and their inter-actors re lationships in the arrangement for the promotion of development, for both, was used the contend and documentary analysis technique, respectively (DELLAGNELO ; SILVA, 2005). The approach of social networks has permitted understand that social relationships may extend the collective efficiency of the arrangement, and therefore need to develop policies that encourage the legalization of informal companies in arrangement, by showing up themselves representative. Thus, the relations estab lished in LPA of confections from Agreste of Pernambuco need for more effective mechanisms to broaden the collective efficiency. Therefore, this way as take place has directly benefited only a group of companies that are linked in some way the supportive institutions. So we can conclude that the inter-actor relations have limited the collective efficiency of LPA, being stimulated by the institutions in support only to groups of entrepreneurs, even those that produce external relations for all clustered companies
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This socio-legal thesis has explored the factors responsible for explaining whether and how redress mechanisms control bureaucratic decision-making. The research considered the three principal institutions of administrative justice: courts, tribunals, and ombudsman schemes. The field setting was the local authority education area and the thesis examined bureaucratic decision-making about admissions to school, home-to-school transport, and Special Educational Needs (SEN). The thesis adopted a qualitative approach, using interviews and documentary research, within a multiple embedded case study design. The intellectual foundations of the research were inter-disciplinary, cutting across law, socio-legal studies, public administration, organization studies, and social policy. The thesis drew on these scholarly fields to explore the nature of bureaucratic decision-making, the extent to which it can be controlled and the way that learning occurs in bureaucracies and, finally, the extent to which redress mechanisms might exercise control. The concept of control was studied across all its dimensions – in relation both to ex post control in specific cases and the more challenging notion of ex ante or structuring control. The aim of the thesis was not to measure the prevalence of bureaucratic control by redress mechanisms, but to understand the factors that might explain its presence or absence in a particular area. The findings of the research have allowed for a number of analytical refinements and extensions to be made to existing theoretical and empirical understandings. 14 factors, along with 87 supporting propositions, have been set out with the aim of making empirically derived suggestions which can be followed up in future research. In terms of the thesis’ contribution to existing knowledge, its comparative focus and its emphasis on the broad notion of control offered the potential for new insights to be developed. Overall, the thesis claims to have made three contributions to the conceptual framework for understanding the exercise of control by redress mechanisms: it emphasizes the importance of ‘feedback’ in relation to the nature of the cases referred to redress mechanisms; it calls attention to the structure of bureaucratic decision-making as well as its normative character; and it discusses how the operational modes of redress mechanisms relate to their control functions.
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Uma ostomia de eliminação intestinal resulta de um procedimento cirúrgico que consiste na ligação de uma parte do intestino delgado ou grosso, a um orifício externo na cavidade abdominal designado de estoma. O utente portador de uma ostomia de eliminação intestinal, devido à sua situação clínica, manifesta um misto de emoções resultante do enorme impacto físico e emocional devido à doença e ao tratamento. A sua própria vida vai desencadear alterações profundas no seu EU, nos estilos de vida, nas relações familiares e sociais, na sua imagem corporal e na autoestima (Pinto, 2012). Foi objetivo deste estudo analisar a perceção que a pessoa portadora de ostomia de eliminação intestinal, seguida na Unidade Local de Saúde Nordeste (ULSNE), tem sobre a sua qualidade de vida (QV). A investigação enquadra-se no domínio da investigação observacional, optando-se pela realização de um estudo descritivo, analítico e transversal, de abordagem quantitativa. Como instrumento de colheita de dados foi utilizado um formulário com questões relativas às características sociodemográficas, a escala de Graffar e a escala de avaliação da qualidade de vida do utente ostomizado. Aceitaram participar no estudo 105 utentes portadores de eliminação intestinal. O sexo predominante é o masculino (50,5%). A classe etária mais representativa é a dos 65 aos 92 anos (78,1%) e o estado civil predominante antes (67,6%) e depois (55,2%) da cirurgia é o de casado. Quanto à atividade laboral, o abandono do trabalho a tempo inteiro, devido à nova situação clínica, foi referido por 94,3% dos inquiridos. Em relação às habilitações académicas, 46,7% sabe ler e escrever, enquadrando-se na classe social média (57,1%). A consulta de estomaterapia na ULSNE ainda não está implementada, mas os inquiridos consideram que a sua implementação seria pertinente (93,3%), facilitando principalmente a adaptação à nova realidade (40%), a ultrapassar dificuldades (28,6%), a evitar complicações/resolver os problemas (9,5%). A média da QV dos participantes neste estudo é de 279,92, superior à média teórica da escala (215), indicando os inquiridos evidenciam um bom nível de qualidade de vida. O enfermeiro estomaterapeuta é o profissional que melhor pode proporcionar toda a informação e suportes necessários, que permitam ultrapassar os problemas e as limitações sentidas pelo ostomizado e pelas pessoas significativas na sua vida.
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Communities of practice (CoPs) are among the professional development strategies most widely used in such fields as management and education. Though the approach has elicited keen interest, knowledge pertaining to its conceptual underpinnings is still limited, thus hindering proper assessment of CoPs' effects and the processes generating the latter. To address this shortcoming, this paper presents a conceptual model that was developed to evaluate an initiative based on a CoP strategy: Health Promotion Laboratories are a professional development intervention that was implemented in local public health organizations in Montreal (Quebec, Canada). The model is based on latest theories on work-group effectiveness and organizational learning and can be usefully adopted by evaluators who are increasingly called upon to illuminate decision-making about CoPs. Ultimately, validation of this conceptual model will help advance knowledge and practice pertaining to CoPs as well as professional and organizational development strategies in public health.
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Global projections for climate change impacts produce a startling picture of the future for low-lying coastal communities. The United States’ Chesapeake Bay region and especially marginalized and rural communities will be severely impacted by sea level rise and other changes over the next one hundred years. The concept of resilience has been theorized as a measure of social-ecological system health and as a unifying framework under which people can work together towards climate change adaptation. But it has also been critiqued for the way in which it does not adequately take into account local perspective and experiences, bringing into question the value of this concept as a tool for local communities. We must be sure that the concerns, weaknesses, and strengths of particular local communities are part of the climate change adaptation, decision-making, and planning process in which communities participate. An example of this type of planning process is the Deal Island Marsh and Community Project (DIMCP), a grant funded initiative to build resilience within marsh ecosystems and communities of the Deal Island Peninsula area of Maryland (USA) to environmental and social impacts from climate change. I argue it is important to have well-developed understandings of vulnerabilities and resiliencies identified by local residents and others to accomplish this type of work. This dissertation explores vulnerability and resilience to climate change using an engaged and ethnographic anthropological perspective. Utilizing participant observation, semi-structured and structured interviews, text analysis, and cultural domain analysis I produce an in-depth perspective of what vulnerability and resilience means to the DIMCP stakeholder network. Findings highlight significant vulnerabilities and resiliencies inherent in the local area and how these interface with additional vulnerabilities and resiliencies seen from a nonlocal perspective. I conclude that vulnerability and resilience are highly dynamic and context-specific for the local community. Vulnerabilities relate to climate change and other social and environmental changes. Resilience is a long-standing way of life, not a new concept related specifically to climate change. This ethnographic insight into vulnerability and resilience provides a basis for stronger engagement in collaboration and planning for the future.
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Resumen La Evaluación Múlticriterio (EMC), integra las diferentes dimensiones de una realidad en un sólo marco de análisis, para brindar un acercamiento de la gestión del recurso hídrico en los cantones Barva, Santa Bárbara y San Rafael de Heredia, con el objetivo de generar las políticas hídricas locales adecuadas. Esta estructura metodológica presenta una gran transparencia como herramienta en la toma de decisiones, identificando claramente los diferentes actores involucrados, describiendo, al mismo tiempo los problemas de gestión del recurso hídrico en la zona; a la vez que permite delimitar los conflictos sociales y mostrar diferentes posibilidades para su solución a través de compromisos y diálogo entre las partes. De éste diálogo emergen soluciones concretas, estructuradas como políticas locales hídricas, tales como: Planes de Gestión Hídrica, Inversión Pública y Privada, Coordinación Institucional, Reforma Institucional/legal. La zona presenta una atmósfera conflictiva alrededor de la gestión del agua y por tanto en la estructuración de políticas hídricas locales. Esta conflictividad ‘sectorial’(es decir por cantón) se superpone a una extraordinaria conflictividad ‘territorial’. La escasez o competencia sobre el agua se fundamenta en unas demandas crecientes que son expresión de un proceso de desarrollo urbano y turístico acelerado y desordenado. Abstract The Evaluation Multi-criteria analysis (EMA), integrates the different dimensions of a reality in an analysis mark, to offer an approach of the administration of the hydric resources in the Heredia´s cities of Barva, Santa Bárbara and San Rafael, with the objective of generating the local adequate hydrics policies. This methodological structure presents a great transparency like tool in the taking of decisions, identifying the different involved actors clearly, describing, at the same time, the problems of administration of the hydric resources in the area; and at the same time, it allows to define the social conflicts, as showing different possibilities for their solution through commitments and dialogue among the parts. Of this dialogue concrete solutions they emerge, structured as hydrics local policies, such as: Plans of hydric management, Public and Private Investment, Institutional Coordination, Institucional/legal reforms. The area presents a conflicting atmosphere around the administration of the water and therefore in the structuring of local hydrics policies. This conflict 'sectorial' (to say for canton) it is superimposed to an extraordinary 'territorial' conflict. The shortage or competition for water are based in some growing demands that are expression of a process of quick and disordered urban and tourist development.
Multifactorial approach to non-viral gene therapy: development of an efficient system for the retina
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Tese de Doutoramento, Ciências Biomédicas, Departamento de Ciências Biomédicas e Medicina, Universidade do Algarve, 2016
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Dissertação de Mestrado, Fiscalidade, Escola Superior de Gestão, Hotelaria e Turismo, Universidade do Algarve, 2016
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Este trabalho aborda a questão dos atos preparatórios no local do crime, isto é, as medidas cautelares e de polícia que o primeiro interveniente policial que chega ao local deve aplicar. As diligências efetuadas pelo primeiro militar que assume uma ocorrência e que, normalmente, não é especialista na área da Investigação Criminal ou forense, revelam-se de elevada importância para o sucesso da investigação pois repercutem-se ao longo de toda a investigação. Essa abordagem caracteriza-se por não visar uma intervenção investigatória e inspetiva, mas sim de prevenção e proteção do local. O objetivo geral do trabalho consiste numa contribuição para uma exploração mais determinada do local onde foi cometido um crime, através do melhor desempenho possível do primeiro interveniente policial. Os objetivos específicos passam por definir os procedimentos a tomar pelo primeiro interveniente (tendo em conta a sua especialidade, materiais e particularidades da fase da investigação) e definir o que é, para ele, um crime de cenário, identificando as possíveis repercussões de uma má gestão do local do crime para o sucesso da investigação. Utilizamos o método comparativo, estudando os diferentes Manuais de procedimentos (nacionais e internacionais). O quadro de referência é o materialismo histórico pois enfatizamos a dimensão histórica dos processos sociais, a legislação vigente e os problemas atuais para interpretar o nosso estudo. Este trabalho assume contornos exploratório-explicativos. Seguimos um método dedutivo, pois pretende-se chegar a um caso particular da lei geral, ou seja, aos procedimentos específicos do primeiro interveniente policial entre toda a gestão do local do crime. Os resultados mais significativos são a justificação da importância do local do crime para a Investigação Criminal e da complexidade que pode advir para o trabalho do primeiro interveniente. É possível concluir um conjunto padrão de ações que devem ser tomadas (guia prático) e como se pode melhorar a intervenção através de formação e cooperação entre os elementos.
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With the exception of the domestic cat, all members of the family Felidae are considered either endangered or threatened. Although not yet used for this purpose, spermatogonial stem cell (SSC) transplantation has a high potential to preserve the genetic stock of endangered species. However, this technique has not previously been established in felids. Therefore, we developed the necessary procedures to perform syngeneic and xenogeneic SSC transplants (eg, germ cell [GC] depletion in the recipient domestic cats, enrichment and labeling of donor cell suspension, and the transplantation method) in order to investigate the feasibility of the domestic cat as a recipient for the preservation and propagation of male germ plasm from wild felids. In comparison with busulfan treatment, local x-ray fractionated radiation was a more effective approach to depleting endogenous spermatogenesis. The results of both syngeneic and xenogeneic transplants revealed that SSCs were able to successfully colonize and differentiate in the recipient testis, generating elongated spermatids several weeks posttransplantation. Specifically, ocelot spermatozoa were observed in the cat epididymis 13 weeks following transplantation. As donor GCs from domestic cats and ocelots were able to develop and form mature GCs in the recipient environment seminiferous tubules, these findings indicate that the domestic cat is a suitable recipient for SSC transplantation. Moreover, as modern cats descended from a medium-size cat that existed approximately 10 to 11 million years ago, these results strongly suggest that the domestic cat could be potentially used as a recipient for generating and propagating the genome of wild felids.
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Climate change, intensive use, and population growth are threatening the availability of water resources. New sources of water, better knowledge of existing ones, and improved water management strategies are of paramount importance. Ground water is often considered as primary water source due to its advantages in terms of quantity, spatial distribution, and natural quality. Remote sensing techniques afford scientists a unique opportunity to characterize landscapes in order to assess groundwater resources, particularly in tectonically influenced areas. Aquifers in volcanic basins are considered the most productive aquifers in Latin America. Although topography is considered the primary driving force for groundwater flows in mountainous terrains, tectonic activity increases the complexity of these groundwater systems by altering the integrity of sedimentary rock units and the overlying drainage networks. Structural controls affect the primary hydraulic properties of the rock formations by developing barriers to flow in some cases and zones of preferential infiltration and subterranean in others. The study area focuses on the Quito Aquifer System (QAS) in Ecuador. The characterization of the hydrogeology started with a lineament analysis based on a combined remote sensing and digital terrain analysis approach. The application of classical tools for regional hydrogeological evaluation and shallow geophysical methods were useful to evaluate the impact of faulting and fracturing on the aquifer system. Given the spatial extension of the area and the complexity of the system, two levels of analysis were applied in this study. At the regional level, a lineament map was created for the QAS. Relationships between fractures, faults and lineaments and the configuration of the groundwater flow on the QAS were determined. At the local level, on the Plateaus region of the QAS, a detailed lineament map was obtained by using high-spatial-resolution satellite imagery and aspect map derived from a digital elevation model (DEM). This map was complemented by the analysis of morphotectonic indicators and shallow geophysics that characterize fracture patterns. The development of the groundwater flow system was studied, drawing upon data pertaining to the aquifer system physical characteristics and topography. Hydrochemistry was used to ascertain the groundwater evolution and verify the correspondence of the flow patterns proposed in the flow system analysis. Isotopic analysis was employed to verify the origin of groundwater. The results of this study show that tectonism plays a very important role for the hydrology of the QAS. The results also demonstrate that faults influence a great deal of the topographic characteristics of the QAS and subsequently the configuration of the groundwater flow. Moreover, for the Plateaus region, the results demonstrate that the aquifer flow systems are affected by secondary porosity. This is a new conceptualization of the functioning of the aquifers on the QAS that will significantly contribute to the development of better strategies for the management of this important water resource.
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Cosmic X-ray background synthesis models (Gilli 2007) require a significant fraction of obscured AGN, some of which are expected to be heavily obscured (Compton-thick), but the number density of observationally found obscured sources is still an open issue (Vignali 2010, 2014). This thesis work takes advantage of recent NuSTAR data and is based on a multiwavelength research approach. Gruppioni et al. 2016 compared the AGN bolometric luminosity, for a sample of local 12 micron Seyfert galaxies, derived from the SED decomposition to the same quantity obtained by the 2-10 keV luminosity (IPAC-NED). A difference up to two orders of magnitude resulted between these quantities for some sources. Thus, the intrinsic X-ray luminosity obtained correcting for the obscuration may be underestimated. In this thesis we have tested this hypothesis by re-analysing the X-ray spectra of three of the sources (UGC05101, NGC1194 and NGC3079), for which observations from NuSTAR and Chandra and/or XMM-Newton were available. This is meant to extend our analysis to energies above 10 keV and thus estimate the AGN column density as reliable as possible. For spectral fitting we made use of both the commonly used XSPEC package and the two very recent MYtorus and BNtorus physical models. The available wide bandpass allowed us to achieve new and more solid insights into the X-ray spectral properties of these sources. The measured absorption column densities are highly suggestive of heavy obscuration. Once corrected the X-ray AGN luminosity for the obscuration estimated through our spectral analysis, we compared the L(X) values in the 2-10 keV band with those derived from the MIR band, by means of the relation by Gandhi, 2009. As expected, the values derived from this relation are in good agreement with those we measured, indicating that the column densities were underestimated in the previous literature works.