A importância da educação para a saúde oral nos adolescentes nas escolas secundárias do conselho de São Vicente

A cárie dentária afecta a população mundial e é o responsável pela dor e perda dos dentes. Prevalece nas crianças que frequentam o pré-escolar, o ensino básico e nos adolescentes do ensino secundário e tem implicações no bem-estar individual e social dos afectados. A pesquisa que desenvolvemos cuja pergunta de partida é: como o enfermeiro pode intervir no sentido de melhorar a saúde oral dos adolescentes? E o título A importância da Educação para a Saúde Oral nos adolescentes nas escolas secundárias do concelho de São Vicente, é de carácter quantitativo, uma vez que recolhemos uma amostra constituída por 80 alunos do 7ºano e 80 alunos do 11ºano das escolas secundárias da ilha de São Vicente, através de um inquérito por questionário fechado, tendo em conta três dimensões: a caracterização do aluno; as questões relacionadas com os hábitos de higiene oral e com os hábitos alimentares, e depois foram realizadas sessões de Educação para a Saúde (EpS), para proporcionar conhecimentos sobre a saúde oral, sensibilizar os alunos sobre os problemas orais e apostar na prevenção. Posteriormente examinamos os dados numericamente, através das estatísticas. Paralelamente o processo de recolha e tratamento de dados remete para um estudo de carácter qualitativo, por termos feito observações dentro e fora das escolas, conversado com os membros do corpo directivo e por causa de toda a reestruturação que foi sendo feita enquanto desenvolvíamos esta pesquisa, Relativamente à análise dos dados, a maioria dos alunos inquiridos, revelaram ter comportamentos e hábitos de saúde oral adequados. Uma minoria, tanto no 7º como no 11º anos afirmou não ter cárie dentária. Porém, a maioria já teve ou tem sangramento durante a escovagem dos dentes e também dores nos dentes. A percentagem desses sintomas não corresponde à percentagem da cárie dentária, o que denuncia discordâncias entre algumas respostas. Neste sentido, alertamos que este indicador deve ser tido em conta em futuros trabalhos de intervenção a serem realizados na comunidade estudantil para que possa ser feita uma observação da cavidade oral e assim clarificá-lo.

Financing constraints, irreversibility and investment dynamics

We develop a model of an industry with many heterogeneous firms that face both financingconstraints and irreversibility constraints. The financing constraint implies that firmscannot borrow unless the debt is secured by collateral; the irreversibility constraint thatthey can only sell their fixed capital by selling their business. We use this model to examinethe cyclical behavior of aggregate fixed investment, variable capital investment, and outputin the presence of persistent idiosyncratic and aggregate shocks. Our model yields threemain results. First, the effect of the irreversibility constraint on fixed capital investmentis reinforced by the financing constraint. Second, the effect of the financing constraint onvariable capital investment is reinforced by the irreversibility constraint. Finally, the interactionbetween the two constraints is key for explaining why input inventories and materialdeliveries of US manufacturing firms are so volatile and procyclical, and also why they arehighly asymmetrical over the business cycle.

Testing financing constraints on firm investment using variable capital

We consider a dynamic multifactor model of investment with financing imperfections,adjustment costs and fixed and variable capital. We use the model to derive a test offinancing constraints based on a reduced form variable capital equation. Simulation resultsshow that this test correctly identifies financially constrained firms even when the estimationof firms investment opportunities is very noisy. In addition, the test is well specified inthe presence of both concave and convex adjustment costs of fixed capital. We confirmempirically the validity of this test on a sample of small Italian manufacturing companies.

Revisão das espécies de Melanosmicra Ashmead (Hymenoptera, Chalcididae)

São tratadas treze espécies, das quais quatro redescritas: Melanosmicra areta (Burks, 1939), M. flavicollis (Cameron, 1904), M. gracilis (Kirby, 1889) e M. immaculata Ashmead, 1904. Melanosmicra variventris (Cameron, 1913) é proposta como sinônimo júnior de M. immaculata. São descritas nove espécies novas: M. acutodentata sp. nov., M. bilobata sp. nov., M. carenata sp. nov., M. guara sp. nov., M. latidentata sp. nov., M. nigra sp. nov., M. polita sp. nov., M. rugosa sp. nov. e M. tricolor sp. nov.. São apresentadas chave de identificação e ilustrações para as espécies.

Endogenous constitutions

We present a theory of the choice of alternative democratic constitutions, a majoritarian or a consensual one, in an unequal society. A majoritarian democracy redistributes resources from the collectivity toward relatively few people, and has a relatively small government and low level of taxation. A consensual democracy redistributes resources toward a broader spectrum of social groups but also has a larger government and a higher level of taxation. We show that a consensual system turns out to be preferred by society when ex ante income inequality is relatively low, while a majoritarian system is chosen when income inequality is relatively high. We also obtain that consensual democracies should be expected to be ruled more often by center-left coalitions while the right should have an advantage in majoritarian constitutions. The implications for the relationship between inequality and redistribution are discussed. Historical evidence and a cross-sectional analysis support our results.

Entrepreneurial risk, investment and innovation

In this paper I develop a general equilibrium model with risk averse entrepreneurialfirms and with public firms. The model predicts that an increase in uncertainty reducesthe propensity of entrepreneurial firms to innovate, while it does not affect thepropensity of public firms to innovate. Furthermore, it predicts that the negativeeffect of uncertainty on innovation is stronger for the less diversified entrepreneurialfirms, and is stronger in the absence of financing frictions in the economy. In thesecond part of the paper I test these predictions on a dataset of small and mediumItalian manufacturing firms.

Financing constraints and fixed-term employment contracts

This paper studies the interactions between financing constraints and theemployment decisions of firms when both fixed-term and permanent employmentcontracts are available. We first develop a dynamic model that shows theeffects of financing constraints and firing costs on employment decisions. Oncecalibrated, the model shows that financially constrained firms tend to use moreintensely fixed term workers, and to make them absorb a larger fraction of thetotal employment volatility than financially unconstrained firms do. We testand confirm the predictions of the model on a unique panel data of Italian manufacturingfirms with detailed information about the type of workers employedby the firms and about firm financing constraints.

Foreign direct investments and spillovers through workers' mobility

We analyze a model where a multinational firm can use its superiortechnology in a foreign subsidiary only after appropriate trainingof local managers. Technological spillovers from foreign directinvestment arise when such managers are later hired by a localfirm. Benefits for the host economy may also take the form of therent that trained managers receive by the foreign affiliate toprevent them from moving to local competitors. We study conditionsunder which technological spillovers occur. We also show that undercertain circumstances the multinational firm might find it optimalto resort to export instead of foreign direct investment, to avoiddissipation of its intangible assets.

Disseny d’un panell acústic capaç d’aïllar acústicament un espai tancat i recaptar el so per transformar-lo en energia elèctrica

L’objectiu principal d'aquest treball és analitzar i quantificar la relació i influència que podria existir entre alguns paràmetres que defineixen les condicions meteorològiques i l'estat de maduració del raïm en les setmanes prèvies a la verema. En la part introductòria s'estableixen els fonaments biològics i tecnològics, per donar pas a la secció on es duu a terme la implantació tecnològica, i s'explica la metodologia experimental i analítica seguides, per donar lloc a l'anàlisi, estudi i valoració dels resultats obtinguts. En el fons, i al llarg de tot el treball de recerca, es pretén que el lector encuriosit es vegi motivat per extreure les seves pròpies deduccions, conclusions i formular els seus propis dubtes sobre els procediments que es descriuen, així com els resultats finals. S'ha pogut establir a partir dels resultats empírics una equació matemàtica entre l'increment de la concentració dels sucres del raïm (factor principal en la seva maduració) i el nombre d'hores de Sol acumulades.

El Advergaming en el digital signage: actores que determinan la obtención del "flow experience" de acuerdo a la ubicación de un dispositivo de emisión de contenido digital, dinámico e interactivo con videojuegos de marca

En la recerca d’eines que suposen la interactivitat com a punt clau en el model de comunicació, la present investi- gació aborda l’ús de videojocs amb contingut publicitari o “advergaming” com a punt central d’estudi i pretén es- tablir els factors que determinen una experiència de joc òptima a través de l’ús de pantalles digitals com a mitjà difusor d’aquest tipus de contingut. Parlarem de “flow experience” o teoria de la psicologia po- sitiva segons el seu creador i precursor Mihály Csíkszent- mihályi, i serà la perspectiva des de la qual pretenem desenvolupar aquest estudi, entenent el “flow experience” com l’estat òptim o nivell més alt d’experiència d’usuari que es pot assolir durant una activitat

RELATÓRIO ELABORADO NO ÂMBITO DA DISCIPLINA PROJECTO SIMULAÇÃO APLICADO À GESTÃO PLATAFORMA MARKETPLACE6–VENCEDORDOMERCADO-PLUSCOMPUTERS

Missão Produzir microcomputadores com qualidade diferenciada, considerando as expectativas dos consumidores e as necessidades do mercado, primando sempre pela inovação tecnológica. Visão Ser a empresa de referência no sector informático, reconhecida mundialmente por clientes, fornecedores e comunidade como a melhor opção pela qualidade dos nossos produtos.

Direct simulation of interface dynamics: linking capillary pressure, interfacial area and surface energy

We perform direct numerical simulations of drainage by solving Navier- Stokes equations in the pore space and employing the Volume Of Fluid (VOF) method to track the evolution of the fluid-fluid interface. After demonstrating that the method is able to deal with large viscosity contrasts and to model the transition from stable flow to viscous fingering, we focus on the definition of macroscopic capillary pressure. When the fluids are at rest, the difference between inlet and outlet pressures and the difference between the intrinsic phase average pressure coincide with the capillary pressure. However, when the fluids are in motion these quantities are dominated by viscous forces. In this case, only a definition based on the variation of the interfacial energy provides an accurate measure of the macroscopic capillary pressure and allows separating the viscous from the capillary pressure components.