Definição de política de segurança informática no IPCB

Dissertação apresentada à Escola Superior de Tecnologia do Instituto Politécnico de Castelo Branco para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Desenvolvimento de Software e Sistemas Interativos, realizada sob a orientação científica Professor Doutor Osvaldo Arede dos Santos, do Instituto Politécnico de Castelo Branco.

As TIC, as práticas de ensino supervisionadas, a investigação e a inovação : os blogues educativos & a segurança na internet

Presentemente, em Portugal, estima-se que a utilização das TIC (Tecnologias da Informação e da Comunicação), pelos designados nativos digitais, corresponde a cerca de 98,S°/o. Considerando que os nativos digitais correspondem aos cidadãos que nasceram somente há 15 anos atrás, significa que toda a atual população escolar vive e convive rodeada de dispositivos e de ferramentas digitais no âmbito das suas rotinas diárias. Contudo, em termos gerais, não se tem verificado a mesma realidade no espaço educativo onde a presença de computadores e de uma ligação à Internet continua a ser muito escassa e incipiente. As Práticas de Ensino Supervisionadas, no âmbito do Mestrado em Educação Pré-escolar e Ensino do 1° Ciclo do Ensino Básico, têm vindo a constituir uma «janela de oportunidades» para a realização de investigações sobre a implementação das TIC no processo de ensino aprendizagem. Apesar de todos os constrangimentos, tem sido possível promover-se uma investigação que se pode considerar inovadora e exploratória pela inexistência de investigações anteriores similares. Para o efeito, é objetivo apresentarem-se os resultados de uma investigação que envolveu a utilização de blogues, no sentido destas ferramentas digitais promoverem novos contextos de aprendizagem e, ainda, com o objetivo de serem uma «ponte» que permitiu a aproximação entre a escola e a família. Um outro exemplo de investigação a apresentar diz respeito à utilização segura da Internet. Dos resultados obtidos foi possível verificar que crianças de 7/8 anos já fazem uma utilização autónoma da internet mas, em vários casos, foi possível averiguar-se que os respetivos pais não têm noção relativamente às utilizações que os seus educandos fazem no chamado ciberespaço. Em termos globais, foi possível apurar-se que as crianças aderem muito facilmente à utilização das tecnologias digitais na sala de aula, os alunos mostraram-se sempre muito envolvidos e motivados. Para terminar, é importante referir que, apesar de todas as vantagens apuradas, quer os alunos quer os pais, continuam a afirmar que a presença dos professores é fundamental e imprescindível no processo de ensino e de aprendizagem.

Mobility in vehicular networks with multiple access points to the infrastructure

Nowadays there is a huge evolution in the technological world and in the wireless networks. The electronic devices have more capabilities and resources over the years, which makes the users more and more demanding. The necessity of being connected to the global world leads to the arising of wireless access points in the cities to provide internet access to the people in order to keep the constant interaction with the world. Vehicular networks arise to support safety related applications and to improve the traffic flow in the roads; however, nowadays they are also used to provide entertainment to the users present in the vehicles. The best way to increase the utilization of the vehicular networks is to give to the users what they want: a constant connection to the internet. Despite of all the advances in the vehicular networks, there were several issues to be solved. The presence of dedicated infrastructure to vehicular networks is not wide yet, which leads to the need of using the available Wi-Fi hotspots and the cellular networks as access networks. In order to make all the management of the mobility process and to keep the user’s connection and session active, a mobility protocol is needed. Taking into account the huge number of access points present at the range of a vehicle for example in a city, it will be beneficial to take advantage of all available resources in order to improve all the vehicular network, either to the users and to the operators. The concept of multihoming allows to take advantage of all available resources with multiple simultaneous connections. This dissertation has as objectives the integration of a mobility protocol, the Network-Proxy Mobile IPv6 protocol, with a host-multihoming per packet solution in order to increase the performance of the network by using more resources simultaneously, the support of multi-hop communications, either in IPv6 or IPv4, the capability of providing internet access to the users of the network, and the integration of the developed protocol in the vehicular environment, with the WAVE, Wi-Fi and cellular technologies. The performed tests focused on the multihoming features implemented on this dissertation, and on the IPv4 network access for the normal users. The obtained results show that the multihoming addition to the mobility protocol improves the network performance and provides a better resource management. Also, the results show the correct operation of the developed protocol in a vehicular environment.

Salt content of processed foods available in the Portuguese market

Evidence suggests that current levels of salt consumption across Europe are linked with several chronic diseases. In recent decades, high blood pressure has increased, together with the consumption of processed foods. World Health Organization (WHO) recommends a salt intake of less than 5 g/day for the prevention of cardiovascular disease. The aim of this study was to evaluate the salt content of processed foods available in the Portuguese market and to compare the determined values with the recommended daily intake established by WHO. Categories of processed foods that contribute to a higher intake of salt were identified: pastry, bakery, fast-food, snacks, ready-to-eat meals, nuts, seeds, soups, cereals, sauces, patties, among others. Between 2013 and 2015, 267 processed food samples were acquired in food chains and restaurants from Lisbon region (Portugal) and the salt content was quantified using Charpentier-Volhard method. High amounts of salt were quantified in the analysed processed foods, namely snacks, fast-food, patties, meals and bakery products. If we consider one portion of a curd cheese pie (193 g), the intake of salt can reach 45% of the recommended value. For snacks, regular portion size is 35 g. One portion of a salty snack can contribute with 31% of the salt recommended daily intake. Up to now food industry has developed efforts to decrease the salt content of some food products, namely bread. However, there still exist foods with high salt content and from a nutritional point of view this should be a priority area of intervention. The obtained results are an effective assessment of current salt content in foods which will be important for further reformulation strategies and to monitor progress in the next years.

Portuguese health care costs related to asbestos exposure: a cost-of-illness study on mesothelioma hospital admission in the period 2000-2015

Background: Portugal has a temperate climate and low industrialization levels existing in the period after World War II, when asbestos materials were used worldwide, has contributed to the generalized belief of low usage of those materials. - Such supposition lacks confirmation; - There is no specific registry of asbestos-related diseases, workers asbestos exposure or asbestos industrial use; - Mesotheliomas are rare neoplasms strongly related to asbestos exposure so they can be used to understand the possible dimension of past exposure to asbestos; - It was estimated that professional diseases under notification was up to 90% for asbestos-related diseases, mainly mesotheliomas.

Manual de segurança alimentar

A Sociedade é cada vez mais exigente, e para satisfazer o consumidor quer em qualidade quer em segurança alimentar, a legislação em vigor deve ser cumprida com rigor, de forma a garantir que os produtos da origem até ao consumo sejam alimentos seguros. O presente trabalho aborda a importância da segurança alimentar, desde a origem ao consumo, com destaque nas exigências sanitárias contidas no Regulamento (CE) 852/2004, em vigor desde 1 de janeiro de 2006, tendo sempre em conta as boas práticas de higiene dos manipuladores intervenientes, das instalações, equipamentos, receção das matérias-primas, armazenagem das mesmas e respetivo processamento dos alimentos. Aborda-se ainda a Norma ISO 22000, que especifica os requisitos para um sistema de gestão da segurança alimentar e que combina os elementos-chave geralmente reconhecidos como essenciais, que permitem assegurar a segurança dos géneros alimentícios ao longo da cadeia alimentar até ao seu consumo final. Para além destes temas são abordados ainda dois exemplos práticos relativos à implementação da segurança alimentar desde a origem da matéria-prima, até ao consumo de alimentos em dois setores. O primeiro é o de uma empresa do setor de distribuição, enquadrando-se nesta o fornecedor de origem, onde se realizam as etapas de abate, desmancha e embalamento, e o segundo é do setor da restauração.

Análise toxicológica in vitro e in vivo de uma fucana antitrombótica da alga marrom Spatoglossum schdöederi

Fucan is a term used to denominate a family of sulfated polysaccharides rich in L-fucose. They are extracted mainly from the extracellular matrix of brown algae and echinoderms. The brown alga Spatoglossum schröederi (Dictyotaceae) has three heterofucans named A, B and C. Our research group have been extracted non anticoagulant heterofucan from S. schröederi which possess antithrombotic activity in vivo. However, their toxicity in vitro and in vivo has not yet been determined. For the results in toxicity in vitro, we observed that the fucan A at 20, 500 and 1000 μg/plate showed no mutagenic activity in Kado test (Microsuspension), when the bacterial strains TA97a, TA98, TA100 and TA102, with and without S9 were used. The comet assay showed that fucan A (from 20 to 1000 μg/mL) did not cause any genotoxic effect on CHO cells. There was no damage to the DNA of these cells, as evidenced by the tail length and tail moment, which were similar to that found for the negative control. The fucan A from S. schröederi was administered at 20 μg/g of rat (dose which it showed high antithrombotic activity) during two months. After that, the animals were killed and examined. The data showed that fucan A did not cause any change in biochemistry and hematological parameters, as well as, in the morphology and size of the rat s organs analyzed. In conclusion, this study indicates that fucan is a compound with potential pharmacological that has no toxicity

Implementação da norma NP 4397:2008 - sistemas de gestão da segurança e saúde do trabalho

Dissertação de Mestrado em Gestão Integrada da Qualidade, Ambiente e Segurança

Sistema de gestão em segurança e saúde do trabalho (SGSST) integrando a norma OHSAS 18001 e NR-18: proposta para o setor da construção civil

The job security issue is crucial for the development of construction due to the need to ensure the health of workers, which is done by means of laws and production management. Thus, among various other laws, was enacted NR-18, in order to ensure the worker's minimum conditions for the development work. Despite legislative developments on the subject, they have become ineffective against the excessive number of accidents in the construction industry, bringing the company to greater in ensuring the health and safety of its workers. In view of this need for improvement of working environment in a general appearance, both for purposes of ensuring the law obedience as comfort for workers and quality of the organization, the System Health Management and Safety (OHSMS) is a valid tool demonstrates the evolution of business management, as well as OHSAS 18001 which proposes to ensure the efficiency and integration of a system geared to safety and health at work by means of implements and adaptations of it, in order to bring significant improvements to conditions of work, especially in the form of a new culture to be adopted by the company. Addressing the problem, this paper aims to develop a management system by OHSAS 18001 which is consistent with the terms of NR-18 as it is this integration of OHSMS Management System of the company as a usual practice of that aims at an improvement of work safety in the business of Buildings.

Effect of commercial starter cultures and native yeasts on ochratoxin a production by aspergillus westerdijkiae and penicillium nordicum in meat products

Processed meat products are of worldwide importance and, because of their intrinsic factors as well as the processing methods, they are highly prone to fungal and mycotoxin contamination. Ochratoxin A (OTA) is the most significant mycotoxin in processed meat products. Penicillium nordicum is considered to be responsible for OTA contamination of meat products, as it is highly adapted to salt and protein-rich matrices and is moderately psycrotrophic. However, another OTA-producing fungus, Aspergillus westerdijkiae, adapted to carbon-rich matrices such as cereals and coffee beans, has been recently associated with high levels of OTA in meat products. Several Lactic Acid Bacteria (LAB) and yeasts have been tested as biocontrol agents against P. nordicum growth and OTA production in meat products, with promising results, but none of the studies have considered A. westerdijkiae. The aim of this work was to evaluate in vitro the effect of a commercial starter culture used in sausage fermentation and four yeasts isolated from dry-cured sausage on these two OTA-producing fungi, both in terms of fungal growth and of OTA production, using different meat-based culture media as model systems. The mechanisms underlying the observed effect were also studied. For this purpose, C. krusei, C. zeylanoides, R. mucilaginosa, R. glutinis, a mix of these yeasts and the starter culture were co-inoculated with P. nordicum and A. westerdijkiae in industrial sausage, traditional sausage, and ham-based media, under conditions of water activity, salt concentration and temperature that mimic real conditions at beginning and end of sausage curing process. Fungal growth was determined by measuring colony diameter, and OTA production was quantified by HPLC-FLD after extraction with methanol. Yeasts where found to inhibit significantly the growth of both fungi. P. nordicum was unable to produce detectable OTA in both sausage-based media under any condition. In ham, yeasts reduced OTA production, while the starter culture significantly increased it. Unexpectedly, OTA production by A. westerdijkiae was significantly stimulated in all media tested by all microorganisms. Matrix has a significant effect on OTA production by P. nordicum, but not by A. westerdijkiae, for which only temperature showed to have effect. By testing the mechanisms of action by which starter culture and C. zeylanoides influenced fungal responses, we were able to determine that direct contact and simultaneous growth of test organisms were the mechanisms more significantly involved in the responses. In conclusion, ochratoxigenic fungi do not all respond to antagonistic microorganisms in the same way. The use of biocontrol agents with the intent of reducing fungal growth and mycotoxin production by one fungus can have unexpected effects on others, thus leading to unforeseen safety problems. Further experiments are recommended to properly understand the reasons behind the different effects of microorganisms, to ensure their safe as biocontrol agents.

Sentimento de pertença psicológica : uma contribuição da educação na educação social inclusiva na cidade de Arapiraca no Estado de Alagoas Brasil

ABSTRACT Background: The school needs proficiar education able to meet the needs of every child regardless of the social and physical condition linguistically. Objective: This study aims to identify the sense of psychological belonging as a contribution to inclusive social education in the city of Arapiraca / al. Method: The methodology used to conduct this study was triangulated. The quantitative, descriptive and explorative, it was .desenvolvido at a school in Arapiraca - AL, in the period from January 2014 to March 2014, having been asked 38 students and their teachers with special necessidaes. With regard to the qualitative study was chosen for conducting interviews with teachers and students. Results: We questioned 38 students with special educational needs and 20 teachers, and it was found that 25% of teachers have specific training and 75% have no specific training. As for the students most had needs intellectual level. As for the teachers felt unprepared to meet students with special educational needs. On the other hand, it is important to note that among the students surveyed most are affected by stress and depression and reported that such things happen because you often see in the classroom in situations that do not know how to solve and when they seek help, found. Conclusion: The school, set in this context has an important role follow the changes, preparing their students more consciously to exercise citizenship by providing means proficionais skilled resources to this function. It is within the perspectiva of inclusive education we believe to achieve in the future, a society where everyone has their rights respected. The sense of psychological belonging experienced by educators in the classroom has special students is part of their lives. School social inclusion is a process that involves access, retention and success of students, but that requires a lot of educator and many times that is not prepared to answer all the expectations of the particular student. Focusing on the issue of the current situation that the public school experience, is undoubtedly recognize the need for changes in their practices. The search we are undertaking it is to carry on with this discussion in order to build the mission of educators grounded in a conscious inclusion within the educational possibilities available today. Key - words: Education. Inclusion. Citizenship. Psychological, Feeling of belonging.

A violência no contexto escolar : percepção de professores e estudantes da rede de ensino pública e particular na cidade de Maceió

Enquadramento teórico: A realização deste trabalho surgiu da própria vivência profissional enquanto professor de Educação Física, lidando com alunos sem perspectivas de futuro, desmotivados, de comportamento agressivo, e com alto grau de indisciplina, caracterizando um perfil violento. A escola atualmente aparece como palco de tensões e a preocupação é evidente já que a escola deve ser um local onde as relações do dia-a-dia traduzem respeito, harmonia, socialização e aquisição de normas e valores, onde os alunos constroem a sua personalidade e uma identidade. Objetivos: Analisar os tipos e frequência da violência no contexto escolar de escolas da rede pública e particular de ensino na cidade de Maceió; Analizar os factores geradores da violência e projetos minimizadores da mesma. Metodologia: Estudo descritivo, exploratório de natureza quantitativa, com 200 professores e 800 alunos de 6 escolas da Rede Pública e Particular de Ensino de Maceió-AL. Resultados: Predomínio de estudantes do sexo feminino, sendo 71,2% na escola pública e 58,% na escola particular, na faixa etária entre os 15-18 anos (65.5%) . Os professores foram de 65% do sexo feminino e 35% do sexo masculino na rede Publica e 45% e 55% na rede Particular, com idades entre os 20 e 60 anos, tendo sido 78% admitidos através de concurso público, com estabilidade vínculo efetivo nesta rede de ensino. Todos os professores da Rede Particular de Ensino atuam sob o regime de contrato com carteira assinada, seguindo a CLT (Consolidação das Leis do Trabalho). Forte predominância da violência verbal em ambos os tipos de instituições e em ambos os sexos e que se somadas perfazem um total superior a 75%. O sumatório de estudantes que em algum momento sofreu violência, nas duas escolas é de 11.4%. De realçar que 39,2% e 28% dos estudantes da escola pública e particular respectivamente informarem que ninguém o ajudou nestas situações. Na escola Publica os fatores mais relatados como geradores de violência foram: Uso de drogas com 14%, as famílias desestruturadas com 14% e a falta de educação doméstica com 13%. Na rede particular 45 % dos professores referem a desestruturação familiar e 35% a práticas de Bullying. Quando questionados sobre o sentimento de segurança na rede publica apenas 8% se sente seguro. Na rede particular, 65% afirmaram sentir-se seguros. Conclusões: A violência ocorre em ambas as escolas da rede pública ou particular, com menor proporção nas escolas da rede particular, tendo em vista que os projetos desenvolvidos, a estrutura física, e recursos humanos, estão presentes a contento. Ambos os públicos estudantis, convivem e se relacionam nesse mesmo cenário social extraescolar, e que carece ser ocupado em termos de políticas públicas que agreguem valor na formação desse jovem. Palavras-chave: violência, escola, juventude, família, políticas públicas.

Análise comparativa entre as normas de segurança do trabalho brasileira e portuguesa nos canteiros de obra

A presente dissertação foi elaborada no âmbito da unidade curricular de DIPRE (Dissertação/Projeto/Estágio), que se encontra no plano de estudos do 2º semestre do 2º ano do Mestrado em Engenharia Civil, no ramo de Construções do Instituto Superior de Engenharia do Porto. O setor da construção civil é um dos que apresenta maior número de acidentes de trabalho e mortes, no mundo, por isso é de suma importância o estudo da segurança do trabalho nos estaleiros. Após a assinatura do Termo de reciprocidade entre Brasil e Portugal, onde são estabelecidas condições para admissão de engenheiros registrados no sistema Confea na Ordem dos engenheiros de Portugal e a recíproca. O conhecimento das normas de segurança se faz necessário para que o engenheiro advindo de outro país tenha as bases teóricas para a prática de suas atividades, assim as normas de segurança de trabalho do Brasil e Portugal foram analisadas, posteriormente realizado, uma análise comparativa entre elas, com o objetivo de verificar diferenças e propor medidas. Com a análise, foi possível verificar que apesar da grande quantidade de normas sobre segurança no trabalho nos estaleiros de obra, algumas já estão ultrapassadas e em desacordo com as exigências atuais. Embora as normas brasileiras e portuguesas serem similares em alguns pontos específicos elas apresentam exigências e métodos distintos para a mesma situação em análise. Verificou-se a necessidade de evolução constante das normas para que estas acompanhem o desenvolvimento tecnológico e das exigências.

Avaliação da política de segurança alimentar implementada através dos restaurantes populares do Rio Grande do Norte

This survey has to general objective to evaluate the Food Safety Policy implemented by Restaurantes Populares do Rio Grande do Norte. The survey is qualitative of type exploratory and descriptive. The universe of survey is all Units of Food and Nutrition (UAN) of the Restaurantes Populares do Rio Grande do Norte. To collects of data were used two instruments: interview and form. The interviews were intended to analyze the four axes of the Food Safety: access, food quality, production and marketing of food and organizational arrangement. The form was used to check the quality of nutrition and sanitary-hygienic food served. We used two types of forms: a spreadsheet with the weekly menu and the portions served to verify that the meals serve the nutritional needs proposed by the program; and the check-list of ANVISA to verify the sanitary-hygienic conditions in each unit. Through the survey data and analyses made observe that the access category have some problems such as lack of registration, lack of advertising of Restaurants and wastage of public resources, making policy that should be of included in a policy of exclusion. In the nutritional aspect there is neglect on the daily nutritional goal, because it is not accomplished nutritional analysis of menu offered, the nutritionists do not know what should be the nutritional value of meals served; in the hygienic-health aspect trough the problems identified is concludes that there is no guarantee of food quality hygienic-sanitary, committing the program as a Food Safety Program. About the production and marketing of food is observed some problems as: the goal of sale of meals is not achieved in full, the purchase of genres does not stimulate the local economy, nor generates jobs and income, and inefficient performance of the MEIOS's supervision. In the analysis of organizational arrangement is concluded that the partnerships are beneficial, despite some negative points, therefore, are these partnerships the problems of non-compliance, as both the MEIOS and Nutriti of important criteria established in the partnership. Therefore, it is understood that the Programa Restaurantes Populares in its original formulation is proposed to be a food safety policy, but has some problems that impossible to meet its goal, making it unprofitable like Food Safety Policy

Fatores que influenciam a aceitação de práticas avançadas de gestão de segurança da informação: um estudo com gestores públicos estaduais no Brasil

This study examines the factors that influence public managers in the adoption of advanced practices related to Information Security Management. This research used, as the basis of assertions, Security Standard ISO 27001:2005 and theoretical model based on TAM (Technology Acceptance Model) from Venkatesh and Davis (2000). The method adopted was field research of national scope with participation of eighty public administrators from states of Brazil, all of them managers and planners of state governments. The approach was quantitative and research methods were descriptive statistics, factor analysis and multiple linear regression for data analysis. The survey results showed correlation between the constructs of the TAM model (ease of use, perceptions of value, attitude and intention to use) and agreement with the assertions made in accordance with ISO 27001, showing that these factors influence the managers in adoption of such practices. On the other independent variables of the model (organizational profile, demographic profile and managers behavior) no significant correlation was identified with the assertions of the same standard, witch means the need for expansion researches using such constructs. It is hoped that this study may contribute positively to the progress on discussions about Information Security Management, Adoption of Safety Standards and Technology Acceptance Model