868 resultados para Leader


Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Dissertation presented to confer Master Degree in Chemical and Biochemical Engineering

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The alignment of collective goals and individual behavior has been extensively studied by economists under a principal-agent framework. Two main solutions have been presented: explicit incentive contracts and monitoring. These solutions correspond to changes in the objective situation faced by individuals. However, an extensive literature in social psychology provides evidence that behavior is influenced, not only by situational constraints, but also by attitudes. Therefore, an important aspect of organization is to choose the structures and procedures that best contribute to the dissemination of the desired attitudes throughout the organization. This paper studies how the initial configuration of attitudes and the size of the organization affect the optimal organizational structure and the timing of information flows when the objective is to align the members' attitudes. We identify and characterize three factors that affect the optimal organizational structures and procedures and the degree of alignment of attitudes: (1) clustering effects; (2) member cross-influence effects; and (3) leader cross-influence effects.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA School of Business and Economics

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Este trabalho analisa os editoriais publicados num semanrio regional. Num meio como o dos jornais, onde os espaos de opinio abundam, existiu a necessidade de trazer alguma clareza sobre os critrios editoriais utilizados. Partindo do princpio de que um projecto jornalstico implica critrios editoriais e que o editorial representa a posio do meio de comunicao social sobre o acontecimento, fizemos um levantamento dos editoriais publicados no Tribuna da Madeira entre Outubro de 2009 e Outubro de 2012 indo ao encontro dos temas e tons adoptados nesse jornal. Partimos de uma abordagem terica que entre outras reas analisa o desenvolvimento da opinio no meio jornalstico, a funo dos lderes de opinio e a maneira como podem influenciar a audincia, bem como a relao entre os media e a comunidade. Estes factores juntos permitem aos media criar atravs dos lderes de opinio uma audincia. O editorial seria uma forma de a comunidade ficar a saber qual o posicionamento do jornal em relao a determinadas matrias. Apesar de o editorial poder assumir vrias formas, este permite esclarecer que tipo de projecto que o jornal pretende assumir. Chegou-se concluso que o Tribuna da Madeira no contm critrios claros nos editoriais e que se encontra desapegado de questes regionais que poderiam ter importncia para a regio em que se insere.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

RESUMO: A estrutura demogrfica portuguesa marcada por baixas taxas de natalidade e mortalidade, onde a populao idosa representa uma fatia cada vez mais representativa, fruto de uma maior longevidade. A incidncia do cancro, na sua generalidade, maior precisamente nessa classe etria. A par de outras doenas igualmente lesivas (e.g. cardiovasculares, degenerativas) cuja incidncia aumenta com a idade, o cancro merece relevo. Estudos epidemiolgicos apresentam o cancro como lder mundial na mortalidade. Em pases desenvolvidos, o seu peso representa 25% do nmero total de bitos, percentagem essa que mais que duplica noutros pases. A obesidade, a baixa ingesto de frutas e vegetais, o sedentarismo, o consumo de tabaco e a ingesto de lcool, configuram-se como cinco dos fatores de risco presentes em 30% das mortes diagnosticadas por cancro. A nvel mundial e, em particular no Sul de Portugal, os cancros do estmago, recto e clon apresentam elevadas taxas de incidncia e de mortalidade. Do ponto de vista estritamente econmico, o cancro a doena que mais recursos consome enquanto que do ponto de vista fsico e psicolgico uma doena que no limita o seu raio de ao ao doente. O cancro , portanto, uma doena sempre atual e cada vez mais presente, pois reflete os hbitos e o ambiente de uma sociedade, no obstante as caractersticas intrnsecas a cada indivduo. A adoo de metodologia estatstica aplicada modelao de dados oncolgicos , sobretudo, valiosa e pertinente quando a informao oriunda de Registos de Cancro de Base Populacional (RCBP). A pertinncia justificada pelo fato destes registos permitirem aferir numa populao especfica, o risco desta sofrer e/ou vir a sofrer de uma dada neoplasia. O peso que as neoplasias do estmago, clon e recto assumem foi um dos elementos que motivou o presente estudo que tem por objetivo analisar tendncias, projees, sobrevivncias relativas e a distribuio espacial destas neoplasias. Foram considerados neste estudo todos os casos diagnosticados no perodo 1998-2006, pelo RCBP da regio sul de Portugal (ROR-Sul). O estudo descritivo inicial das taxas de incidncia e da tendncia em cada uma das referidas neoplasias teve como base uma nica varivel temporal - o ano de diagnstico - tambm designada por perodo. Todavia, uma metodologia que contemple apenas uma nica varivel temporal limitativa. No cancro, para alm do perodo, a idade data do diagnstico e a coorte de nascimento, so variveis temporais que podero prestar um contributo adicional na caracterizao das taxas de incidncia. A relevncia assumida por estas variveis temporais justificou a sua incluso numaclasse de modelos designada por modelos Idade-Perodo-Coorte (Age-Period-Cohort models - APC), utilizada na modelao das taxas de incidncia para as neoplasias em estudo. Os referidos modelos permitem ultrapassar o problema de relaes no lineares e/ou de mudanas sbitas na tendncia linear das taxas. Nos modelos APC foram consideradas a abordagem clssica e a abordagem com recurso a funes suavizadoras. A modelao das taxas foi estratificada por sexo. Foram ainda estudados os respectivos submodelos (apenas com uma ou duas variveis temporais). Conhecido o comportamento das taxas de incidncia, uma questo subsequente prende-se com a sua projeo em perodos futuros. Porm, o efeito de mudanas estruturais na populao, ao qual Portugal no alheio, altera substancialmente o nmero esperado de casos futuros com cancro. Estimativas da incidncia de cancro a nvel mundial obtidas a partir de projees demogrficas apontam para um aumento de 25% dos casos de cancro nas prximas duas dcadas. Embora a projeo da incidncia esteja associada a alguma incerteza, as projees auxiliam no planeamento de polticas de sade para a afetao de recursos e permitem a avaliao de cenrios e de intervenes que tenham como objetivo a reduo do impacto do cancro. O desconhecimento de projees da taxa de incidncia destas neoplasias na rea abrangida pelo ROR-Sul, levou utilizao de modelos de projeo que diferem entre si quanto sua estrutura, linearidade (ou no) dos seus coeficientes e comportamento das taxas na srie histrica de dados (e.g. crescente, decrescente ou estvel). Os referidos modelos pautaram-se por duas abordagens: (i)modelos lineares no que concerne ao tempo e (ii) extrapolao de efeitos temporais identificados pelos modelos APC para perodos futuros. Foi feita a projeo das taxas de incidncia para os anos de 2007 a 2010 tendo em conta o gnero, idade e neoplasia. ainda apresentada uma estimativa do impacto econmico destas neoplasias no perodo de projeo. Uma questo pertinente e habitual no contexto clnico e a que o presente estudo pretende dar resposta, reside em saber qual a contribuio da neoplasia em si para a sobrevivncia do doente. Nesse sentido, a mortalidade por causa especfica habitualmente utilizada para estimar a mortalidade atribuvel apenas ao cancro em estudo. Porm, existem muitas situaes em que a causa de morte desconhecida e, mesmo que esta informao esteja disponvel atravs dos certificados de bito, no fcil distinguir os casos em que a principal causa de morte devida ao cancro. A sobrevivncia relativa surge como uma medida objetiva que no necessita do conhecimento da causa especfica da morte para o seu clculo e dar-nos- uma estimativa da probabilidade de sobrevivncia caso o cancro em anlise, num cenrio hipottico, seja a nica causa de morte. Desconhecida a principal causa de morte nos casos diagnosticados com cancro no registo ROR-Sul, foi determinada a sobrevivncia relativa para cada uma das neoplasias em estudo, para um perodo de follow-up de 5 anos, tendo em conta o sexo, a idade e cada uma das regies que constituem o registo. Foi adotada uma anlise por perodo e as abordagens convencional e por modelos. No eplogo deste estudo, analisada a influncia da variabilidade espao-temporal nas taxas de incidncia. O longo perodo de latncia das doenas oncolgicas, a dificuldade em identificar mudanas sbitas no comportamento das taxas, populaes com dimenso e riscos reduzidos, so alguns dos elementos que dificultam a anlise da variao temporal das taxas. Nalguns casos, estas variaes podem ser reflexo de flutuaes aleatrias. O efeito da componente temporal aferida pelos modelos APC d-nos um retrato incompleto da incidncia do cancro. A etiologia desta doena, quando conhecida, est associada com alguma frequncia a fatores de risco tais como condies socioeconmicas, hbitos alimentares e estilo de vida, atividade profissional, localizao geogrfica e componente gentica. O contributo, dos fatores de risco , por vezes, determinante e no deve ser ignorado. Surge, assim, a necessidade em complementar o estudo temporal das taxas com uma abordagem de cariz espacial. Assim, procurar-se- aferir se as variaes nas taxas de incidncia observadas entre os concelhos inseridos na rea do registo ROR-Sul poderiam ser explicadas quer pela variabilidade temporal e geogrfica quer por fatores socioeconmicos ou, ainda, pelos desiguais estilos de vida. Foram utilizados os Modelos Bayesianos Hierrquicos Espao-Temporais com o objetivo de identificar tendncias espao-temporais nas taxas de incidncia bem como quantificar alguns fatores de risco ajustados influncia simultnea da regio e do tempo. Os resultados obtidos pela implementao de todas estas metodologias considera-se ser uma mais valia para o conhecimento destas neoplasias em Portugal.------------ABSTRACT: mortality rates, with the elderly being an increasingly representative sector of the population, mainly due to greater longevity. The incidence of cancer, in general, is greater precisely in that age group. Alongside with other equally damaging diseases (e.g. cardiovascular,degenerative), whose incidence rates increases with age, cancer is of special note. In epidemiological studies, cancer is the global leader in mortality. In developed countries its weight represents 25% of the total number of deaths, with this percentage being doubled in other countries. Obesity, a reduce consumption of fruit and vegetables, physical inactivity, smoking and alcohol consumption, are the five risk factors present in 30% of deaths due to cancer. Globally, and in particular in the South of Portugal, the stomach, rectum and colon cancer have high incidence and mortality rates. From a strictly economic perspective, cancer is the disease that consumes more resources, while from a physical and psychological point of view, it is a disease that is not limited to the patient. Cancer is therefore na up to date disease and one of increased importance, since it reflects the habits and the environment of a society, regardless the intrinsic characteristics of each individual. The adoption of statistical methodology applied to cancer data modelling is especially valuable and relevant when the information comes from population-based cancer registries (PBCR). In such cases, these registries allow for the assessment of the risk and the suffering associated to a given neoplasm in a specific population. The weight that stomach, colon and rectum cancers assume in Portugal was one of the motivations of the present study, that focus on analyzing trends, projections, relative survival and spatial distribution of these neoplasms. The data considered in this study, are all cases diagnosed between 1998 and 2006, by the PBCR of Portugal, ROR-Sul.Only year of diagnosis, also called period, was the only time variable considered in the initial descriptive analysis of the incidence rates and trends for each of the three neoplasms considered. However, a methodology that only considers one single time variable will probably fall short on the conclusions that could be drawn from the data under study. In cancer, apart from the variable period, the age at diagnosis and the birth cohort are also temporal variables and may provide an additional contribution to the characterization of the incidence. The relevance assumed by these temporal variables justified its inclusion in a class of models called Age-Period-Cohort models (APC). This class of models was used for the analysis of the incidence rates of the three cancers under study. APC models allow to model nonlinearity and/or sudden changes in linear relationships of rate trends. Two approaches of APC models were considered: the classical and the one using smoothing functions. The models were stratified by gender and, when justified, further studies explored other sub-models where only one or two temporal variables were considered. After the analysis of the incidence rates, a subsequent goal is related to their projections in future periods. Although the effect of structural changes in the population, of which Portugal is not oblivious, may substantially change the expected number of future cancer cases, the results of these projections could help planning health policies with the proper allocation of resources, allowing for the evaluation of scenarios and interventions that aim to reduce the impact of cancer in a population. Worth noting that cancer incidence worldwide obtained from demographic projections point out to an increase of 25% of cancer cases in the next two decades. The lack of projections of incidence rates of the three cancers under study in the area covered by ROR-Sul, led us to use a variety of forecasting models that differ in the nature and structure. For example, linearity or nonlinearity in their coefficients and the trend of the incidence rates in historical data series (e.g. increasing, decreasing or stable).The models followed two approaches: (i) linear models regarding time and (ii) extrapolation of temporal effects identified by the APC models for future periods. The study provide incidence rates projections and the numbers of newly diagnosed cases for the year, 2007 to 2010, taking into account gender, age and the type of cancer. In addition, an estimate of the economic impact of these neoplasms is presented for the projection period considered. This research also try to address a relevant and common clinical question in these type of studies, regarding the contribution of the type of cancer to the patient survival. In such studies, the primary cause of death is commonly used to estimate the mortality specifically due to the cancer. However, there are many situations in which the cause of death is unknown, or, even if this information is available through the death certificates, it is not easy to distinguish the cases where the primary cause of death is the cancer. With this in mind, the relative survival is an alternative measure that does not need the knowledge of the specific cause of death to be calculated. This estimate will represent the survival probability in the hypothetical scenario of a certain cancer be the only cause of death. For the patients with unknown cause of death that were diagnosed with cancer in the ROR-Sul, the relative survival was calculated for each of the cancers under study, for a follow-up period of 5 years, considering gender, age and each one of the regions that are part the registry. A period analysis was undertaken, considering both the conventional and the model approaches. In final part of this study, we analyzed the influence of space-time variability in the incidence rates. The long latency period of oncologic diseases, the difficulty in identifying subtle changes in the rates behavior, populations of reduced size and low risk are some of the elements that can be a challenge in the analysis of temporal variations in rates, that, in some cases, can reflect simple random fluctuations. The effect of the temporal component measured by the APC models gives an incomplete picture of the cancer incidence. The etiology of this disease, when known, is frequently associated to risk factors such as socioeconomic conditions, eating habits and lifestyle, occupation, geographic location and genetic component. The "contribution"of such risk factors is sometimes decisive in the evolution of the disease and should not be ignored. Therefore, there was the need to consider an additional approach in this study, one of spatial nature, addressing the fact that changes in incidence rates observed in the ROR-Sul area, could be explained either by temporal and geographical variability or by unequal socio-economic or lifestyle factors. Thus, Bayesian hierarchical space-time models were used with the purpose of identifying space-time trends in incidence rates together with the the analysis of the effect of the risk factors considered in the study. The results obtained and the implementation of all these methodologies are considered to be an added value to the knowledge of these neoplasms in Portugal.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The purpose of this work is to create a case to reflect about the leadership role of Jos Mourinho in Real Madrid CF, considering his successful background experiences in FC Porto, Chelsea FC and FC Inter. The case is based on the failure of the Special One in Real Madrid CF. This paper is mainly focused in the leadership process, charismatic leadership and contingency theory of leadership. Moreover it is intended to introduce concepts about the influence of leaders in the organizational culture, the management of human resources, and the role of a leader adapting to a different context.