Learning Sustainability with EPS@ISEP – Development of an Insectarium

8th International Symposium on Project Approaches in Engineering Education (PAEE)

Relação entre ciclo de vida do produto turístico e estratégias de cooperação na faixa litorânea urbana do município de Natal

Tourism in the Northeast of Brazil was introduced as an alternative economic development for the Region by federal promoting policies that focused primarily in structuring the local geographic area. With the completion of these structuring actions, mass tourism expanding the area, as well as spread actions based on cooperation and formalization of governance institutions. This study aimed to examine the relationship between the life cycle of the tourism product 'Coastal Cities of Natal and the cooperation strategies in a historical perspective. Thus was submitted to the life cycle of the tourism product 'Coastal Cities of Natal ; the major projects of tourism development were mapped, the existing cooperation strategies were characterized, and investigated the influence of the cooperation actions for the current stage of product. The specific theoretical support to tourism was built on the perspective of the Theory of Population Ecology, System of Tourism and Touristic Product Life Cycle. Regarding to cooperation the theoretical foundation addressed issues of strategy, New Forms and Collective Efficiency. The survey consisted of a causal descriptive study, using a case study. We used the qualitative and quantitative methodological approaches, and data collected by consulting of secondary data and semistructured interviews with twelve staff working in tourism in Natal. Results showed that the life cycle graph of product 'Coastal Cities of Natal is moving from one stage of growth to a stage of maturity, with a primary upward trend and with crises that are up over the graph. They have been mapped six of tourism development projects of relevance to the product: The Politics of Mega Projects, PRODETUR/NE, Municipalization National Program of Tourism, Regionalization Program, Urbanization Project Beach do Meio and Actions for the Promotion of Destiny. They have been identified sixty-four participating players in process of tourism development, which twenty were considered relevant to the respondents. The main strategies identified for cooperation were the consortium, collective strategy and clusters. Results indicated that co-operation strategies were adopted so that the benefits were obtained at the collective level, dedicated to the strengthening of Natal Destiny and its products. The main reasons were the need of cooperative marketing, international market entry and actions inducing the state. Finally, it was concluded that strategies for cooperation related to product life cycle 'Coastal Cities of Natal' as that work in the consolidation of projects for development of tourism, when the efficiency of collective action is achieved

Avaliação de tipologias construtivas nos critérios de sustentabilidade : estudo de casos – telhas

Dissertação (mestrado)—Universidade de Brasília, Faculdade de Arquitetura e Urbanismo, Programa de Pós-Graduação em Arquitetura e Urbanismo, 2016.

Relatório de estágio de intervenção comunitária - Hábitos de vida saudáveis dos adolescentes da Escola Secundária Mouzinho da Silveira de Portalegre

A adolescência deve ser considerada como uma etapa do ciclo vital do ser humano, onde ocorrem importantes processos de crescimento e desenvolvimento. É um período de transição da infância para a idade adulta, sendo difícil estabelecer uma delimitação etária do princípio e do seu fim, uma vez que existem «muitas adolescências» conforme cada infância, cada fase de maturação, cada família, cada época, cada cultura. Enquanto se tenta entender a si próprio e aos outros, o adolescente experiência novas sensações, diferentes sentimentos, passando por situações únicas na sua vida. Coabitam nesta fase desejos ambivalentes de crescimento e regressão, de autonomia e dependência, ligado ao passado, vontade de se projetar no futuro. É durante a adolescência que se poderão verificar comportamentos e o estabelecer de hábitos de vida prejudiciais à sua saúde, com implicações no momento e/ou a longo prazo. Políticas de Promoção da Saúde envolvem a implementação estratégica de Programas de Educação para a Saúde, com vista a capacitar os adolescentes para a aquisição e/ou manutenção de hábitos de vida saudáveis, possuindo deste modo um papel fundamental e decisivo na sua saúde. No âmbito do III Mestrado em Enfermagem, com a área de Especialização em Enfermagem Comunitária, o presente relatório ambiciona descrever, analisar e refletir as atividades desenvolvidas durante o estágio. O estágio sucedeu o Diagnóstico da Situação de Saúde, efetuado em grupo (4 mestrandas), tendo decorrido na Escola Secundaria Mouzinho da Silveira em Portalegre, junto dos adolescentes do 8.º e 9.º Anos, no Ano Letivo 2013/2014, durante o período de 16 de setembro de 2013 a 31 de janeiro de 2014. Elegeu-se a comunidade adolescente, dado o elevado interesse desta para a saúde comunitária, com o intuito de se promover a capacitação dos adolescentes na aquisição/manutenção de Hábitos de Vida Saudáveis. Com a efetivação do estágio, tornou-se um desafio para a mestranda a aquisição de competências como enfermeira Especialista em Enfermagem Comunitária.

What Is a Firm’s Life Expectancy? Empirical Evidence in the Context of Portuguese Companies

It is a fact that the uncertainty about a firm’s future has to be measured and incorporated into a company’s valuation throughout the explicit analysis period – in the continuing or terminal value within valuation models. One of the concerns that can influence the continuing value of enterprises, which is not explicitly considered in traditional valuation models, is a firm’s average life expectancy. Although the literature has studied the life cycle of a firm, there is still a considerable lack of references on this topic. If we ignore the period during which a company has the ability to produce future cash flows, the valuations can fall into irreversible errors, leading to results markedly different from market values. This paper aims to provide a contribution in this area. Its main objective is to construct a mortality table for non-listed Portuguese enterprises, showing that the use of a terminal value through a mathematical expression of perpetuity of free cash flows is not adequate. We provide the use of an appropriate coefficient to perceive the number of years in which the company will continue to operate until its theoretical extinction. If well addressed regarding valuation models, this issue can be used to reduce or even to eliminate one of the main problems that cause distortions in contemporary enterprise valuation models: the premise of an enterprise’s unlimited existence in time. Besides studying the companies involved in it, from their existence to their demise, our study intends to push knowledge forward by providing a consistent life and mortality expectancy table for each age of the company, presenting models with an explicitly and different survival rate for each year. Moreover, we show that, after reaching a certain age, firms can reinvent their business, acquiring maturity and consequently postponing their mortality through an additional life period.

Situação de risco com impacto em toda a família: gravidez na adolescência

Introdução: A gravidez na adolescência constitui uma situação de risco com impacto em toda a família, podendo gerar crises não apenas na jovem que engravida - em virtude da inexperiência e consequente dificuldade que surge para cuidar de um filho - , como do ponto de vista transgeracional. Objetivos: Aplicar o Modelo Dinâmico de Avaliação e Intervenção Familiar (MDAIF) Figueiredo (2009) e avaliar o impacto dos cuidados de enfermagem numa família em contexto clínico. Métodos: Estudo de caso qualitativo realizado com base no MDAIF em contexto clínico nos Cuidados de Saúde Primários. Este estudo focou-se no processo de intervenção familiar desenvolvido com uma família de uma adolescente de 16 anos que engravida, fruto de uma relação fugaz com um rapaz 9 anos mais velho que conheceu através das redes sociais (Facebook). Instrumentos: Genograma, Ecomapa, Apgar familiar e Escala de Graffar. Resultados: Família extensa, com diferentes subsistemas e limites rígidos. A família encontra-se na etapa do ciclo vital – família com filhos adolescentes, segundo Duvall (1977). Família de classe média. Com a gravidez não desejada da adoelscente, e apesar da relação conflituosa com a sua mãe, esta torna-se um apoio importante no percurso da vida da adolescente e no desenvolvimento do recém-nascido. Conclusões: A utilização do MDAIF permitiu o desenvolvimento das habilidades dos enfermeiros para uma abordagem familiar, contribuindo assim para dar resposta às necessidades da família, enquanto unidade alvo de cuidados. Além disto, permitiu à adolescente prosseguir com a realização do seu projeto de vida, com o apoio familiar e social. Sugere-se a continuidade da utilização do MDAIF.

Energy harvesting for monitoring bridges over their operational life

The use of energy harvesting materials for large infrastructure is a promising and growing field. In this regard, the use of such harvesters for the purpose of structural health monitoring of bridges has been proposed in recent times as one of the feasible options since the deployment of them can remove the necessity of an external power source. This paper addresses the performance issue of such monitors over the life-cycle of a bridge as it deteriorates and the live load on the structure increases. In this regard, a Lead Zirconate Titanate (PZT) material is considered as the energy harvesting material and a comparison is carried out over the operational life of a reinforced concrete bridge. The evolution of annual average daily traffic (AADT) is taken into consideration, as is the degradation of the structure over time, due to the effects of corrosion. Evolution of such harvested energy is estimated over the life-cycle of the bridge and the sensitivity of harvested energy is investigated for varying rates of degradation and changes in AADT. The study allows for designing and understanding the potential of energy harvesters as a health monitor for bridges. This paper also illustrates how the natural growth of traffic on a bridge over time can accentuate the identification of damage, which is desirable for an ageing structure. The paper also assesses the impact and effects of deployment of harvesters in a bridge as a part of its design process, considering performance over the entire life-cycle versus a deployment at a certain age of the structure.

Techno-economic analysis of three HVAC retrofitting options

Accounting for around 40% of the total final energy consumption, the building stock is an important area of focus on the way to reaching the energy goals set for the European Union. The relatively small share of new buildings makes renovation of existing buildings possibly the most feasible way of improving the overall energy performance of the building stock. This of course involves improvements on the climate shell, for example by additional insulation or change of window glazing, but also installation of new heating systems, to increase the energy efficiency and to fit the new heat load after renovation. In the choice of systems for heating, ventilation and air conditioning (HVAC), it is important to consider their performance for space heating as well as for domestic hot water (DHW), especially for a renovated house where the DHW share of the total heating consumption is larger. The present study treats the retrofitting of a generic single family house, which was defined as a reference building in a European energy renovation project. Three HVAC retrofitting options were compared from a techno-economic point of view: A) Air-to-water heat pump (AWHP) and mechanical ventilation with heat recovery (MVHR), B) Exhaust air heat pump (EAHP) with low-temperature ventilation radiators, and C) Gas boiler and ventilation with MVHR. The systems were simulated for houses with two levels of heating demand and four different locations: Stockholm, Gdansk, Stuttgart and London. They were then evaluated by means of life cycle cost (LCC) and primary energy consumption. Dynamic simulations were done in TRNSYS 17. In most cases, system C with gas boiler and MVHR was found to be the cheapest retrofitting option from a life cycle perspective. The advantage over the heat pump systems was particularly clear for a house in Germany, due to the large discrepancy between national prices of natural gas and electricity. In Sweden, where the price difference is much smaller, the heat pump systems had almost as low or even lower life cycle costs than the gas boiler system. Considering the limited availability of natural gas in Sweden, systems A and B would be the better options. From a primary energy point of view system A was the best option throughout, while system B often had the highest primary energy consumption. The limited capacity of the EAHP forced it to use more auxiliary heating than the other systems did, which lowered its COP. The AWHP managed the DHW load better due to a higher capacity, but had a lower COP than the EAHP in space heating mode. Systems A and C were notably favoured by the air heat recovery, which significantly reduced the heating demand. It was also seen that the DHW share of the total heating consumption was, as expected, larger for the house with the lower space heating demand. This confirms the supposition that it is important to include DHW in the study of HVAC systems for retrofitting.

Life history of a wide-ranging deepwater lantern shark in the north-east Atlantic, Etmopterus spinax (Chondrichthyes: Etmopteridae), with implications for conservation

In this paper, the population biology of the velvet belly lanternshark Etmopterus spinax was studied and life-history coefficients determined. Age was estimated from sections of the second dorsal spine and validated by marginal increment analysis. Males attained a maximum age of 8 years while 11 year-old females were found. Several growth models were fitted and compared for both size-at-age and mass-at-age data, showing that even though this is a small-sized species, it has a relatively slow growth rate. This species matures late, specifically at 49.6 and 42.5% of the maximum observed ages for males and females, respectively. It has a low fecundity, with a mean ovarian fecundity of 9.94 oocytes and a mean uterine fecundity of 7.59 embryos per reproductive cycle. This species seems to have a long reproductive cycle, and even though no conclusive data were obtained, a 2-3 year cycle is possible. The estimated coefficients indicate that this species has a vulnerable life cycle, typical of deepwater squalid sharks. Given the high fishing pressures that it is suffering in the north-east Atlantic, this fish may already be facing severe declines or in risk of facing them in the near future. (C) 2008 The Authors Journal compilation (C) 2008 The Fisheries Society of the British Isles

Life history & environmental effects on telomere dynamics in Atlantic salmon

While much of the study of molecular biology inevitably focuses on the parts of the genome that contain active genes, there are also non-coding regions that nonetheless play an essential role in maintaining genome integrity. One such region are telomeres, which cap the ends of all eukaryotic chromosomes and play an important role in chromosome protection. Telomere loss occurs at each cell division as a result of the ‘end replication problem’ and a relatively short telomere length is indicative of poor biological state. Thus far, the majority of studies on the dynamics and role of telomeres have been biased towards certain taxa. Research to date has mostly focussed on humans, other mammals and birds. There has been far less research on the telomere dynamics of ectotherms. It is important that we do so, especially since ectothermic vertebrates do not seem to down-regulate telomerase expression in the same way as endotherms, suggesting that their telomere dynamics may be less predictable in the later life stages. The main objective of this thesis was therefore to investigate how life history and environmental effects may influence telomere dynamics in Atlantic salmon Salmo salar. I carried out carefully designed experiments, both in the laboratory and in the wild, using a longitudinal approach where possible, in order to address a number of specific questions that are connected to this central theme. In chapter 2, I demonstrate that there can be significant links between parental life history and offspring telomere dynamics. Maternal life history traits, in particular egg size, were most strongly related to offspring telomere length at the embryonic stages. Paternal life history traits, such as early life growth rate, had a greater association with offspring telomere dynamics in the later stages of development. In chapter 3, using a wild Atlantic salmon population, I found that most individuals experienced a reduction in telomere length during the migratory phase of their life cycle; however the relative rate of telomere loss was dependent on sex, with males experiencing a relatively greater loss. Unexpectedly, I also found that juvenile salmon that had the shortest telomeres at the time of outward migration, had the greatest probability of surviving through to the return migration. In chapter 4, again using a wild system involving experimental manipulations of juvenile Atlantic salmon in Scottish streams, I found that telomere length in juvenile fish was influenced by parental traits and by direct environmental effects. Faster-growing fish had shorter telomeres and there was a greater cost (in terms of reduced telomere length) if the growth occurred in a harsher environment. I also found a positive association between offspring telomere length and the growth history of their fathers (but not mothers), represented by the number of years that fathers had spent at sea. Chapter 5 explored the hypotheses that oxidative DNA damage, catalase (CAT) antioxidant activity and cell proliferation rate are underlying mechanisms linking incubation temperature and telomere dynamics in salmon embryos. No evidence was found for any such effects, but telomere lengths in salmon embryos were found to be significantly affected by the temperature of the water in which they were living. There is also evidence that telomere length significantly increases during embryonic development. In summary, this thesis has shown that a complex mix of environmental and parental effects appear to influence telomere dynamics in Atlantic salmon, with parental effects especially evident during early life stages. It also demonstrated that telomeres lengthen through the embryo stages of development before reducing once the fry begin feeding, indicating that the patterns of telomere loss commonly found in endotherms may differ in ectotherms. Reasons for this variation in telomere dynamics are presented in the final Discussion chapter of the thesis.

Estrategias de logística inversa que permitan la reutilización de llantas usadas

Esta investigación busca desde la logística inversa, mostrar como un producto tan implementado y desechado por la sociedad, puede generar un nuevo uso, e incluso la reintegración total de sus materias primas a la cadena de suministro, mostrando la estrecha relación que existe entre la logística inversa y la reutilización de productos fuera de uso. Para esto se analizara el manejo actual que tienen las llantas en Bogotá, planteando su flujo y dando a conocer el principal punto de falencia, que es la recolección y los diferentes sitios de acopio de estas. Los neumáticos o llantas son desechados anualmente en Bogotá sin medir las consecuencias ambientales que esto trae consigo, pues las quemas a cielo abierto de estos materiales y su almacenamiento inadecuado generan altos riesgos para su entorno y el medio ambiente. Además, el manejo inapropiado de llantas es una de las principales razones por la cual pasan a ser obsoletas al poco tiempo de uso. El proceso de fabricación de llantas es muy similar al proceso de cualquier producto, pues en resumen este cuenta con la implementación de sus materias primas, proceso de manufactura, una inspección final y como resultado un producto terminado, que al ser vendido muchas compañías se libran de la disposición final de las llantas. Pero ahí radica un punto a favor para la logística inversa, donde esta buscara la manera de darle un nuevo ciclo de vida a este producto, a través del reciclaje y la reutilización. Mediante esta investigación, se busca captar los principales lugares de acopio de llantas usadas en Bogotá, de manera que estos serán nuestros principales puntos de información para el proyecto, que permita plantear y definir de manera clara estrategias y conclusiones cualitativas.

Why do so few hold stocks : theory and evidence

This study develops a life-cycle model where investors make investment decisions in a realistic environment. Model results show that personal illiquid projects (housing and children), fixed costs (once-off/per-period participation costs plus variable/fixed transaction costs) and endogenous risky human capital (with permanent, transitory and disastrous shocks) together are able to address both the non-participation puzzle and the age-effects puzzle. Empirical implications of the model are examined using Heckman’s two-step method with the latest five Surveys of Consumer Finance (SCF). Regression results show that liquidity, informational cost and human capital are indeed the major determinants of participation and asset allocation decisions at different stages of an investor’s life.

Testing a framework for the quality of process models: A case study

Process modeling can be regarded as the currently most popular form of conceptual modeling. Research evidence illustrates how process modeling is applied across the different information system life cycle phases for a range of different applications, such as configuration of Enterprise Systems, workflow management, or software development. However, a detailed discussion of critical factors of the quality of process models is still missing. This paper proposes a framework consisting of six quality factors, which is derived from a comprehensive literature review. It then presents in a case study, a utility provider, who had designed various business process models for the selection of an Enterprise System. The paper summarizes potential means of conducting a successful process modeling initiative and evaluates the described modeling approach within the Guidelines of Modeling (GoM) framework. An outlook shows the potential lessons learnt, and concludes with insights to the next phases of this study.