Monte Carlo studies of phase transitions and adsorption : application to n-6 Lennard-Jones, C60 and zeolite systems

The solid-fluid transition properties of the n - 6 Lennard-Jones system are studied by means of extensive free energy calculations. Different values of the parameter n which regulates the steepness of the short-range repulsive interaction are investigated. Furthermore, the free energies of the n < 12 systems are calculated using the n = 12 system as a reference. The method relies on a generalization of the multiple histogram method that combines independent canonical ensemble simulations performed with different Hamiltonians and computes the free energy difference between them. The phase behavior of the fullerene C60 solid is studied by performing NPT simulations using atomistic models which treat each carbon in the molecule as a separate interaction site with additional bond charges. In particular, the transition from an orientationally frozen phase at low temperatures to one where the molecules are freely rotating at higher temperatures is studied as a function of applied pressure. The adsorption of molecular hydrogen in the zeolite NaA is investigated by means of grand-canonical Monte Carlo, in a wide range of temperatures and imposed gas pressures, and results are compared with available experimental data. A potential model is used that comprises three main interactions: van der Waals, Coulomb and induced polarization by the permanent electric field in the zeolite.

Hotel Brand Conversions: What Works and What Doesn’t

As many as one-third of U.S. hotels have been converted from one brand to another in recent years, a process that frequently improves the hotel’s financial performance—although that is not always the case. Using data collected between 1994 and 2012 from PKF Hospitality Research, an analysis of brand conversions by 260 hotels shows that hotels moving downscale generally improved their occupancy, and thus their top-line revenue and profit ratios, compared to a control group of 2,750 hotels that did not change brands. However, hotels that moved upscale did not see notable changes in revenue or profit, nor did hotels that moved across their tier, especially when they stayed within their brand family. Two factors seem to drive the financial results for converted hotels—the relative strength of the brand and the fit between the brand and the property.

Prédictions sportives chez des athlètes de basketball: perception d’efficacité personnelle et illusion de contrôle

Les athlètes sont nombreux à parier sur les sports et leurs connaissances en sport pourraient les amener à s’y sentir compétents. Les théories similaires de la perception d’efficacité personnelle (PEP) et de l’illusion de contrôle offrent des pistes de réflexion sur cette impression de compétence. Comme la PEP peut se généraliser entre tâches similaires, la PEP des athlètes à une tâche sportive pourrait se généraliser, sous forme d’illusions de contrôle, vers la PEP à des prédictions sportives. L’objectif principal du mémoire est de vérifier si la PEP à une tâche de basketball se généralise vers des prédictions. Un objectif secondaire est de vérifier le lien entre la PEP aux prédictions sportives et l’illusion de contrôle. Vingt-trois basketteurs de niveau collégial ou universitaire sont répartis aléatoirement en deux conditions : PEP augmentée et diminuée. Lors d’une tâche de basketball, les athlètes doivent statuer le nombre de paniers qu’ils croient réussir et tenter de l’atteindre. Pour manipuler la PEP, il est mentionné aux athlètes qu’ils ont deux minutes pour accomplir la tâche, mais ont plus ou moins 15 % de ce temps. Ils effectuent ensuite des prédictions sur le basketball et sur un autre sport. Les résultats révèlent l’augmentation et la diminution significative de la PEP à la tâche de basketball, sans généralisation aux prédictions, puisque les athlètes des deux conditions rapportent une PEP élevée aux prédictions sur le basketball et modérée sur l’autre sport. Aussi, le lien PEP − illusion de contrôle n’est pas significatif. Les résultats illustrent toutefois que les athlètes présentent une PEP et une illusion de contrôle plus élevées aux prédictions sur le basketball que sur l’autre sport. Il semble que les basketteurs se sentent plus compétents pour prédire des événements de basketball qu’un autre sport, et ce, indépendamment de leur PEP à une tâche motrice de basketball.

K'cidade : um modo de viver a intervenção comunitária

Relatório de estágio de mestrado, Ciências da Educação (Formação de Adultos), Universidade de Lisboa, Instituto de Educação, 2011

An Evaluative Case Study of a Career Coaching Approach to Improving Student Placement Success in a UK Business School

Describes the innovative approach adopted in a UK business school to improve the number of student placements. A module was designed to provide students with the skills to search, apply for and gain a year-long placement as part of a degree ‘sandwich’ course. A blend of workshops, recorded lectures, online formative feedback exercises and one-to-one career coaching created a tailored, practical approach to skill enhancement. This session provides the presentation of the adopted methodology the results of the evaluative research, a live demonstration of the coaching approach and a discussion with the audience of ideas for development of the approach.

No rastro de dores : trajetórias de vida e registros de superação em narrativas de mulheres negras com experiência de relações afetivo-sexuais com outras mulheres

Tese (doutorado)—Universidade de Brasília, Instituto de Ciências Sociais, Departamento de Antropologia, Programa de Pós-graduação em Antropologia Social, 2015.

Understanding the Effect of Television Advertising on Women's Attitudes and Purchase Intentions Towards Beer: A Study of Three Major Brands.

Abstract Purpose of Paper: The market for beer in the UK is now mature and sales have been stable at around £16bn for about ten years (Mintel 2014). More recently, there have been changes in the market as consumers have switched from bigger mainstream brands to a growing number of smaller craft beers. However, in order to grow further significantly, the industry needs to explore new market segments and find new consumers for beer. So far, it is estimated that only 1.3m women in the UK drink beer (O'Reilly, 2014; Mail Online, 2015). Women are therefore an underexplored segment and present the main growth opportunity for beer drinking in the UK. However, most beer television advertising has traditionally been aimed at the male audience and there have been suggestions that some of this advertising has been seen as unpopular with or even insulting to women (Jackson, 2013; Zwarun et al., 2006). The Chief Executive of major brewer SAB Miller, which owns the Foster's brand, has recently written that, 'We have to acknowledge that core lager advertising, for many years, was either dismissive of, or insulting to, women.' (Shubber, 2015). If women are to be the new consumers and the future target for beer advertising, there is therefore a significant gap in the knowledge and literature concerned with how women differ from men in responding to the television advertising produced by beer brands and it is important that this gap in knowledge is addressed. The purpose of this paper is therefore to explore the effect of the television advertising of the three top selling UK beer brands on women's attitudes and purchase intentions towards those brands. More specifically, the objectives are: 1) To gain an understanding of how female consumers respond to existing beer television advertising, specifically in terms of the ‘likeability’ of the content of TV commercials produced by the three leading UK beer brands among female consumers. 2) To examine the effect of the rational and emotional content, including the use of humour, in television commercials produced by the three leading UK beer brands on the attitudes of female consumers towards those brands. 3) To explore in-depth female consumer attitudes towards the content (message cues and symbolism) of the television commercials produced by the three leading beer brands in the UK and their effect on subsequent purchase intentions for each brand.

Internacionalização do vinho do Porto – estudo de caso Grupo Sogevinus

Dissertação apresentada ao Instituto Superior de Contabilidade para a obtenção do Grau de Mestre em Empreendedorismo e Internacionalização Orientada por Professor Doutor José Freitas Santos

Construção de vantagens competitivas nas estratégias de internacionalização: estudo do caso da EFACEC

Dissertação apresentada ao Instituto Politécnico do Porto para obtenção do Grau de Mestre em Gestão das Organizações, Ramo de Gestão de Empresas Orientador: Professor Doutor Orlando Manuel Martins Marques de Lima Rua

Particle swarm optimization based approaches to vehicle-to-grid scheduling

This paper addresses the problem of energy resources management using modern metaheuristics approaches, namely Particle Swarm Optimization (PSO), New Particle Swarm Optimization (NPSO) and Evolutionary Particle Swarm Optimization (EPSO). The addressed problem in this research paper is intended for aggregators’ use operating in a smart grid context, dealing with Distributed Generation (DG), and gridable vehicles intelligently managed on a multi-period basis according to its users’ profiles and requirements. The aggregator can also purchase additional energy from external suppliers. The paper includes a case study considering a 30 kV distribution network with one substation, 180 buses and 90 load points. The distribution network in the case study considers intense penetration of DG, including 116 units from several technologies, and one external supplier. A scenario of 6000 EVs for the given network is simulated during 24 periods, corresponding to one day. The results of the application of the PSO approaches to this case study are discussed deep in the paper.

Dgenco market balancing - cost repartition under light regulation markets

In this paper we present a new methodology, based in game theory, to obtain the market balancing between Distribution Generation Companies (DGENCO), in liberalized electricity markets. The new contribution of this methodology is the verification of the participation rate of each agent based in Nucléolo Balancing and in Shapley Value. To validate the results we use the Zaragoza Distribution Network with 42 Bus and 5 DGENCO.

Análise de risco em organizações: caso de estudo

Dissertação Final de Mestrado para obtenção do grau de Mestre em Engenharia Mecânica no perfil de Manutenção e Produção

Personatv

Trabalho de projeto apresentado à Escola Superior de Comunicação Social como parte dos requisitos para obtenção de grau de mestre em Jornalismo.

Estudantes do ensino superior e transição para o mercado de trabalho

Dissertação de Mestrado, Psicologia da Educação, especialidade de Contextos Educativos, 4 de Março de 2016, Universidade dos Açores.

Comparação técnica da conceção/solução de projetos de climatização para um hotel rural

Trabalho Final de Mestrado para obtenção do grau de Mestre em Engenharia com a Especialidade em Energia, Climatização e Refrigeração