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CARME - Comunicações em conferências com publicação em atas

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  • Sustainable tourism and the circular economy: A theoretical overview
    Publication . Costa, Berta; Rodrigues, Susana; Moreno, Pilar
    The concept of sustainable tourism has become one of the most noteworthy topics among academics and practitioners and a hallmark in tourism discourse. During the last decades, tourism has developed into one of the largest socio-economic activities, and thus driving economic growth that most supports to the countries’ GDP (Gross Domestic Product). The world economic paradigm, and consequently the tourism industry, is configured according to the linear model of production and consumption, in which goods are discarded after usage, resulting in massive waste. Furthermore, the degrading impact of tourism, along with the assumption that natural resources are abounding, and that environment has unlimited means to absorb waste, need to be addressed without delay. Considering these premises, the principle of sustainable tourism arose with the objective of minimizing the negative effects of tourism related activities. From this standpoint, circular economy emerges as a solution, as it harmonizes economic development with the sustainable use of natural resources, and also enables the tourism industry to become more sustainable. The purpose of this article is to outline the conceptual dimensions of sustainable tourism and circular economy, and also scrutinize how these two constructs have evolved over the past decades and their correlation. A broad literature review was conducted, in order to draw attention to the constituent elements brought to discussion.
  • Estimation of prevalence in rare disease using pooled samples
    Publication . Martins, J. P.; Santos, R.; Felgueiras, M.
    The use of pooled samples for screening infected individuals is a known procedure to reduce costs. In an estimation problem, the aim is only to determine how many individuals are infected instead of determining who is infected (classification problem). In that setting, our goal was to compare the performance of using one or two-dimensional arrays. The best performance was established according to one of the following criteria: minimizing the number of individuals or the number of tests required to attain a certain estimate accuracy. It is observed that when we want to minimize the number of individuals used, the two-dimensional procedures have a little advantage over the one-dimensional procedures. However, when the major concern is the cost, the one-dimensional procedures clearly outperform the two-dimensional procedures.
  • Alternative heavy tailed models in seismology
    Publication . Felgueiras, Miguel; Martins, João; Santos, Rui
    Great earthquakes are commonly considered as the ones with moment magnitude (Mw ) above or equal to 8.0. Since these earthquakes can destroy entire communities located near the epicentre, the search of physical laws that explain the energy released by them is an important issue. There is a connection between the radiated energy of an earthquake, its magnitude and its seismic moment (M 0). Thence, when fitting a heavy or an extremely heavy tailed distribution to a seismic moment dataset, we are in fact adjusting a mathematical model which explains the amount of energy released by these great seisms. Therefore, the main goal of this work is to study the more appropriated Pareto based models (the most used family in this field) when explaining the seismic moment of the great earthquakes. With this purpose in mind, we selected two different catalogs that accommodate recent events and are considered more accurate than other catalogs used in previous works. We conclude that the traditional Pareto distribution remains a good choice to deal with this kind of data, but Log-Pareto lead to higher p-values and Location-scale Pareto is better fitted to the biggest events.
  • The evaluation of CSR perception: a study in Portugal and Ukraine
    Publication . Sokil, Oksana; Ubreziová, Iveta; Eugénio, Teresa; Marques, Tânia
  • The evaluation of CSR perception level in Portugal and Ukraine
    Publication . Sokil, Oksana; Eugénio, Teresa; Marques, Tânia; Ubreziová, Iveta
  • O impacto do conflito trabalho-família no engagement, desempenho e intenção de turnover dos colaboradores
    Publication . Oliveira, Ana Rita; Ribeiro, Neuza
    A incompatibilidade entre a esfera do trabalho e da família é uma realidade que assola muitos trabalhadores na atualidade. A difícil articulação destes dois domínios conduz à vivência do fenómeno designado por Conflito Trabalho-Família (CTF). O presente estudo tem como objetivo avaliar o impacto que o CTF poderá ter no engagement e no desempenho dos colaboradores, bem como, na sua intenção de turnover. Pretende-se também testar o efeito mediador do engagement na relação entre o CTF e o desempenho, e entre o CTF e a intenção de turnover. Foram inquiridos 105 colaboradores de várias organizações. Os resultados revelaram que os colaboradores que sentem maior CTF apresentam menores níveis de engagement e maior intenção de sair da organização. O CTF não revelou relação com o desempenho. O engagement assume o papel mediador (mediação parcial) na relação entre o CTF e a intenção de turnover. A relevância deste estudo prende-se com as implicações que poderá trazer para as empresas no âmbito da implementação de estratégias de conciliação trabalho-família de forma a reduzir o referido conflito.
  • Marketing relacional assente no marketing interno: a influência das competências de coaching do líder nas respostas dos colaboradores
    Publication . Menezes, Rita; Ribeiro, Neuza
    O líder coach é um potenciador, alguém verdadeiramente importante na dinâmica das equipas. Por se ter dado conta de uma relativa escassez de dados empíricos relativos à eficácia do Coaching, foi realizado um estudo quantitativo com base nas perceções que 80 colaboradores de diferentes organizações tinham dos seus líderes e das suas próprias atitudes e comportamentos. Os resultados indicaram que as Competências de Coaching do líder explicam 45 % do empenhamento afetivo, 5 % da criatividade e 21 % da orientação para o cliente do colaborador. Sugere-se, então, que as competências de Coaching do líder são determinantes e a sua atuação é preponderante no Marketing Interno, na conquista do cliente interno, ao produzir efeitos do interior para o exterior da organização.