Apoio geoespacial a uma operação NEO

No âmbito das obrigações que o Estado Português tem em garantir a segurança dos seus cidadãos, é efetuada, em países ou regiões onde há comunidades nacionais, uma avaliação quanto ao risco de vida para os cidadãos nacionais que aí residam ou aí se encontrem, entendendo-se, à luz do direito internacional consuetudinário, que é legítima a eventual execução de intervenção militar de extração de nacionais não combatentes dessas zonas de risco. Este trabalho pretende contribuir para uma reflexão sobre o apoio geoespacial a uma operação de extração de cidadãos nacionais não combatentes, que se denomina NEO (non-combatant evacuation operation). Dada a importância do conhecimento holístico do ambiente operacional para os comandantes militares, os Sistemas de Informação Geográfica desempenham um papel fundamental em termos da análise, contextualização e visualização da informação geoespacial, sendo um precioso sistema de apoio à decisão. A tomada de decisão é efetuada com os contributos de várias áreas de conhecimento, sendo fundamental que o planeamento seja efetuado com base na mesma informação geoespacial, evitando a existência de uma multitude de dados geoespaciais nem sempre coerentes, atualizados e acessíveis a todos os que deles necessitam, pretendendo-se com este trabalho fornecer um contributo para resolver este problema. Aborda-se também a escassez dos dados geográficos nas zonas em que este tipo de operações se poderá desenrolar, a pertinência e a adequabilidade de utilização de dados espaciais abertos, os modelos de dados, bem como a forma como a informação pode ser disponibilizada.

Do imaginado ao imaginário : magia, improviso e salvação nas narrativas orais tradicionais e nos discursos de formação da Igreja e da religiosidade católica no Brasil

Tese (doutorado)—Universidade de Brasília, Instituto de Ciências Sociais, Departamento de Sociologia, 2016.

Estudo da incorporação da cal em composições binárias de solo-cimento para produção de tijolos maciços

The use of binders in the soil for the production of solid bricks is an old construction technique that has been used by several civilizations over time. At the same time, the need for environmental preservation and the tendency of scarcity of natural resources make the construction invest in researching new concepts, methods and materials for building systems for the sustainability of their economic activities. Thus arises the need to obtain building materials with low power consumption, capable of reducing the growing housing shortage of rural and urban population. Currently, research has been conducted on this topic to better understand the cementitious and pozzolanic reactions that occur in the formation of the microstructure of the soil-cement when added to other materials such as, for example, lime, and the relationship between microstructure and formed interfaces with the physical, mechanical and chemical analysis in compounds made from these ternary compositions. In this context, this study aimed to analyze the results of the influence of the incorporation of lime to the soil-cement to form a ternary mixture to produce soil-cement bricks and mortar without structural purposes. From the inclusion of contents of 6 %, 8 %, 10% and 12% lime to the soil, and soil-cement mixes in amounts of 2 %, 3 %, 4 % and 5 % were shaped-bodies of -cylindrical specimens to determine the optimum moisture content and maximum dry apparent specific weight. Then they were cured, and subjected to the tests of compressive strength, absorption and durability modified. Compositions obtained the best results in the tests performed on the bodies-of-proof cylindrical served as a parameter for molding of solid bricks, which underwent the same experimental methodology previously cited. The raw materials used, as well as compositions in which the bricks were molded solid, were characterized by physical and chemical tests, X-ray diffraction and scanning electron microscopy. The results obtained in the study indicate that the compositions studied, that showed the best results in terms of compressive strength, water absorption and durability ternary composition was soil, 10 % cement and 2 % lime

Essays on Financial Constraints, R&D Investments, and Competition

This dissertation consists of two chapters of theoretical studies that investigate the effect of financial constraints and market competition on research and development (R&D) investments. In the first chapter, I explore the impact of financial constraints on two different types of R&D investments. In the second chapter, I examine the impact of market competition on the relationship between financial constraints and R&D investments. In the first chapter, I develop a dynamic monopoly model to study a firm’s R&D strategy. Contrary to intuition, I show that a financially constrained firm may invest more aggressively in R&D projects than an unconstrained firm. Financial constraints introduce a risk that a firm may run out of money before its project bears fruit, which leads to involuntary termination on an otherwise positive-NPV project. For a company that relies on cash flow from assets in place to keep its R&D project alive, early success can be relatively important. I find that when the discovery process can be expedited by heavier investment (“accelerable” projects), a financially constrained company may find it optimal to “over”-invest in order to raise the probability of project survival. The over-investment will not happen if the project is only “scalable” (investment scales up payoffs). The model generates several testable implications regarding over-investment and project values. In the second chapter, I study the effects of competition on R&D investments in a duopoly framework. Using a homogeneous duopoly model where two unconstrained firms compete head to head in an R&D race, I find that competition has no effect on R&D investment if the project is not accelerable, and the competing firms are not constrained. In a heterogeneous duopoly model where a financially constrained firm competes against an unconstrained firm, I discover interesting strategic interactions that lead to preemption by the constrained firm in equilibrium. The unconstrained competitor responds to its constrained rival’s investment in an inverted-U shape fashion. When the constrained competitor has high cash flow risk, it accelerates the innovation in equilibrium, while the unconstrained firm invests less aggressively and waits for its rival to quit the race due to shortage of funds.

Effect of intermittent feeding on growth in early juveniles of the crayfish Cherax quadricarinatus

Three experiments were conducted with juveniles of the crayfish Cherax quadricarinatus to investigate the effect of intermittent feeding regimes on growth and the ability to tolerate the shortage of food. In experiment 1, stage III juveniles were assigned to one of seven intermittent feeding groups (from FS1: 1 day fed/1 day non-fed to FS7: 7 days fed/7 days non-fed) and two control groups, continuously fed (CF) and continuously starved (CS) animals; this experiment comprised a short-term intermittent feeding period until the first molt, followed by a continuous feeding period. In the experiment 2, stage III juveniles were assigned to one of three intermittent feeding groups (FS2 to FS4) and one control group (CF); it consisted of a prolonged intermittent feeding period, until the end of the experiment In the experiment 3, stage VI and VII juveniles were assigned to one of three intermittent feeding groups (FS2 to FS4) and one control (CF); it also consisted of a prolonged intermittent feeding period. The red claw crayfish juveniles were able to tolerate periods of intermittent feeding and underwent compensatory growth after continuous feed was re-established. The ability of crayfish to tolerate intermittent feeding was influenced by developmental stage and duration of the intermittent feeding period. Stage III juveniles survived, but decreased growth, when subjected to prolonged intermittent feeding. However, they showed full compensatory growth when the intermittent feeding period was short and followed by continuous feeding. on the other hand, stage VI-VII tolerated 60 days of prolonged intermittent feeding without any change in growth and survival. The hepatosomatic index (based on wet weight) values of the treatments and the control were similar, suggesting that intermittent feeding may not be considered a nutritional stress condition. The relative pleon weight (based on wet weight) values of the treatments and control were similar suggesting low use of nutrients from the muscle to increase the chance for survival. The juveniles of C quadricarinatus can tolerate relatively long periods of low food availability and this is an important adaptation for their survival in changing/unpredictable environments and an attribute favorable for the production of the species. (C) 2011 Elsevier B.V. All rights reserved.

Carências de boro no interior - norte e centro - de Portugal

In Portugal, boron deficiency has been observed almost everywhere, in particular in the interior of the country, causing severe crop damage. In the 1950’s, the growth anomalies in the Douro vineyards were recognised as a boron deficiency (called ´maromba’). From the 1980’s onwards systematic studies have been carried out in the northern and central interior of Portugal with the purpose of identifying and correcting this deficiency in fruit trees and forest/agroforest species. In this review paper an inventory of geological/lithological formations and soil groups is carried out where the boron shortage was most often detected. The environmental conditions that enhanced the occurrence of boron deficiency were reviewed. Based on studies carried out in these regions, the deficiency symptoms of selected trees were described, and also the boron concentrations in soils and leaves in which the symptoms had been observed were recorded. Experimental results of boron fertilisation in terms of growth or yield increase of crops were presented. Finally, an attempt is made to explain perplexities arisen from unexpected plant reactions, either due to the deficiency or to boron application, since the emergence of ´maromba’ in the 19th century until the present. In addition, some strategies for correction of scarcity of this micronutrient are suggested

Caracterização de casos de lesão medular e a sua relação com a independência funcional e qualidade de vida

Introdução: As lesões medulares acarretam consigo a problemática da deficiência, as suas respectivas sequelas interferem na qualidade de vida bem como na independência funcional destas pessoas, sendo habitual a existência de limitações que se prolongam ao longo a vida. O presente estudo visa a caracterização de sujeitos com lesão medular há mais de um ano, no que diz respeito à sua qualidade de vida e independência funcional, assim como, a relação entre as variáveis sóciodemográficas (género, idade, estado civil, escolaridade e profissão) e clínicas em estudo (nível, tipo, etiologia e data da lesão). Materiais e Métodos: O presente trabalho apresenta-se como um estudo observacional exploratório descritivo com abordagem quantitativa. A amostra foi formada por indivíduos adultos com lesão medular recrutados através da Associação Salvador e Associação Vida Independente. As medidas instrumentais utilizadas pelo estudo são o questionário sóciodemográfico e clínico, bem com a escala MIF (Granger, Hamilton, Keith, Zielezny, & Sherwins, 1986) e a escala SF-36 (Ware % Sherbourne, 1992). Resultados e Discussão: As análises demonstraram valores satisfatórios. A independência funcional e sua respectiva dimensão física e sóciocognitiva revelam resultados estatisticamente significativos com a variável nível neurológico. No que diz respeito à qualidade de vida esta demonstrou resultados estatisticamente significativos entre a dimensão desempenho emocional e a escolaridade entre o desempenho físico e a profissão e vitalidade e idade. Revelou igualmente valores satisfatórios entre todas as dimensões e o nível neurológico, entre a função social e data da lesão e por último entre a etiologia e função social, vitalidade, dor, saúde geral e mental. Conclusão: Os resultados obtidos com este estudo vêm reforçar a visão de que apesar dos indivíduos experienciarem um evento traumático e aspetos negativos após a lesão medular, há diferentes níveis de percepção de QoL e IF e que estas variam em função de algumas variáveis sóciodemográficas e clínicas. Neste ponto são ainda apresentadas as limitações do estudo e discutidas propostas de trabalhos futuros.

Mineral stress response of Vitis cell wall transcriptome: identification, characterization and expression of genes from key families involved in wall biosynthesis and modification

Doutoramento em Engenharia Agronómica - Instituto Superior de Agronomia - UL

Curso online para a parte pral do Celpe-Bras : contribuições da avaliação de proficiência para o ensino-aprendizagem de PLE

Dissertação (mestrado)—Universidade de Brasília, Departamento de Línguas Estrangeiras e Tradução, Programa de Pós-Graduação em Linguística Aplicada, 2016.

Análise da descarga sólida em suspensão na Bacia do Riacho Fundo, Brasília - DF

Dissertação (mestrado)—Universidade de Brasília, Instituto de Geociências, 2015.

Entre habitação e cidade

Tese de Doutoramento em Urbanismo, apresentada na Faculdade de Arquitetura da Universidade de Lisboa, para obtenção do grau de Doutor.

A Qualitative Study of the Status of Children’s Play From the Viewpoints of Experts and Suggestions for Promotion Interventions

Background: The latest national census reports the population of Iranian children (1 - 8 years old) about 11 millions. On the other hand, the latest population policies approved by supreme cultural revolution council (SCRC) will make this population increase faster. Childhood development is one of the social determinants of health, of which “child’s play” is a part. Objectives: This study is an effort to identify difficulties and challenges of the plays influential on Iranian children’s health nationwide, in order to present enhancive strategies by utilizing the views of stakeholders and national studies. Patients and Methods: Analyzing children’s play stakeholders, main organizations were identified and views of 13 informed people involved in the field were investigated through deep semi-structured interview. A denaturalized approach was employed in analyzing the data. In addition to descriptions of the state, interventions development, and designing the conceptual model, national reports and studies, and other countries’ experiences were also reviewed. Results: Society’s little knowledge of “children’s plays”, absence of administrators for children’s play, shortage of public facilities for children’s play and improper geographical and demographic availability, absence of policies for Iranian “toy”, and little attention of media to the issue are the five major problems as stated by interviewees. Conclusions: The proposed interventions are presented as “promoting the educational levels of parents and selected administrators for children’s play”, “approving the play and toy policy for Iran 2025”, and “increasing public facilities for children’s play with defined distribution and availability”.