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Estudo sobre sistemas de segurança em instalações elétricas automatizadas.; A study about security systems in automatized eletric installations.

Janes, Ricardo
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 15/04/2009 PT
Relevância na Pesquisa
66.15%
Este trabalho apresenta um estudo sobre os principais sistemas de segurança utilizados em instalações elétricas automatizadas, com enfoque no controle de acesso físico, utilizando tecnologias biométricas. São apresentadas neste trabalho as principais características dos sistemas de segurança aplicados à detecção e combate de incêndios, ao controle do acesso físico, ao controle interno e externo da segurança, como circuitos fechados de televisão e controle de segurança perimetral, e as tecnologias biométricas que podem ser usadas para o controle de acesso de pessoas. É apresentado o desenvolvimento de um protótipo de baixo custo, utilizando tecnologia biométrica para o controle de acesso físico, assim como as principais vantagens e desvantagens, algoritmos e relações custo-benefício para o uso de biometria em sistemas de segurança. O estudo mostra que o uso da biometria como ferramenta para a melhoria dos sistemas de segurança existentes é uma tendência mundial, no entanto, existe uma preocupação crescente sobre a confidencialidade das informações biométricas das pessoas.; This work presents a study of the main security systems used in automatized electric installations, with approach in the physical access control...

Internacionalização dos sistemas de seguridade social: perspectiva do Brasil; Internationalization of social security systems: Brazils outlook

Presotto, Andrea Regina Galvão
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 15/04/2011 PT
Relevância na Pesquisa
56.13%
Esta dissertação trata da internacionalização e necessidade de adequação dos sistemas de Seguridade Social ao atual cenário de circulação de mão-de-obra decorrente, principalmente, da globalização econômica e da formação dos blocos regionais. O primeiro capítulo é dedicado ao surgimento e evolução dos sistemas de Seguridade Social de acordo com o desenvolvimento dos Estados e aparecimento dos riscos sociais. A segunda parte dedica-se à análise de alsguns aspectos da globalização, bem como a relação estabelecida com a manutenção da soberania dos Estados, as perspectivas a partir da União Europeia e do Mercosul e, bem assim, os reflexos na Seguridade Social e os instrumentos utilizados para adequação dos sistemas, em busca da manutenção dos direitos sociais. Em seguida, são analisadas as diretrizes internacionais das Convenções nºs 102 e 118 da OIT sobre Seguridade Social, bem como os sistemas internacionais atualmente vigentes nos principais blocos regionais, quais sejam, a União Europeia e o Mercosul. Finalmente, será estudado cada um dos acordos internacionais dos quais o Brasil é parte, com o objetivo de demonstrar a cobertura de proteção que um cidadão brasileiro ou natural de algum dos países envolvidos poderá usufruir. Em caráter complementar...

Estudo Comparado dos Sistemas de Seguridade Social do Japão e do Brasil: a proteção aos trabalhadores de ambos os países; Comparative Study on the Social Security Systems of Japan and Brazil: the protection of workers from both countries

Tseng, Melissa Chyun Yea
Fonte: Biblioteca Digitais de Teses e Dissertações da USP Publicador: Biblioteca Digitais de Teses e Dissertações da USP
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 07/05/2014 PT
Relevância na Pesquisa
55.98%
O presente trabalho tem por intuito analisar o contexto de proteção social em que estão inseridos os trabalhadores brasileiros que emigraram ao Japão no passado e ainda permanecem naquele país ou que tenham retornado ao Brasil, comparando-se os sistemas de seguridade social japonês e brasileiro. A comparação em questão visa expor as medidas colocadas em prática não apenas para eliminar a dupla tributação, mas também para garantir os direitos sociais desses trabalhadores migrantes por meio da aplicação do Acordo Previdenciário Brasil-Japão. O resultado desta pesquisa pretende, por fim, contribuir para o conhecimento dos pesquisadores brasileiros de Direito sobre o tema e, oportunamente, proporcionar reflexões sobre as questões eventualmente suscitadas.; This study aims at analyzing the social protection context in which participate the Brazilian migrant workers who migrated to Japan and there are settled down or are back to Brazil, by comparing the Japanese and the Brazilian social security systems. This comparison is driven to introduce the measures which have been taken, not only for the purposes of avoiding double taxation, but also to ensure the social rights of these migrant workers, by means of applying the Brazil-Japan Social Security Agreement. Finally...

Social security effects on income distribution: a counterfactual analysis for Brazil

Moura, Rodrigo Leandro de; Tafner, Paulo; Jesus Filho, Jaime de; Ourives, Lígia Helena da Cruz
Fonte: Fundação Getúlio Vargas Publicador: Fundação Getúlio Vargas
Tipo: Trabalho em Andamento
EN_US
Relevância na Pesquisa
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According to Diamond (1977), one of the reasons for the existence of social security systems is that they function as an income redistribution mechanism. There is an extensive literature that tests whether social security systems produce the desired results in developed countries (mainly for the U.S.A.). Nevertheless, there is not an obvious consensus about this social security property and there is little evidence for developing countries. In this article, we test this property for the Brazilian Social Security System. In addition, we also look at another question which has not been answered yet in the previous literature. Is the trend of social security systems increasingly progressive or regressive? We conclude that the changes in Brazilian Social Security legislation reduced inequality between 1987 and 1996, but only for the elderly. For the other age groups, there is a stable trend. Results for the period between 1996 and 2006 reveal that the Brazilian system is neutral for all cohorts. Therefore, we found out that social security systems are not an effective mechanism for income redistribution, as predicted by previous studies.; Instituto Brasileiro de Economia

Gerenciamento baseado em modelos da configuração de sistemas de segurança em ambientes de redes complexos; Model-based configuration management of security systems in complex network environments

João Porto de Albuquerque Pereira
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Tese de Doutorado Formato: application/pdf
Publicado em 24/05/2006 PT
Relevância na Pesquisa
56.13%
Os mecanismos de segurança empregados em ambientes de redes atuais têm complexidade crescente e o gerenciamento de suas configurações adquire um papel fundamental para proteção desses ambientes. Particularmente em redes de computadores de larga escala, os administradores de segurança se vêem confrontados com o desafio de projetar, implementar, manter e monitorar um elevado número de mecanismos, os quais possuem sintaxes de configuração heterogêneas e complicadas. Uma conseqüência dessa situação é que erros de configuração são causas freqüentes de vulnerabilidades de segurança. O presente trabalho oferece uma sistemática para o gerenciamento da configuração de sistemas de segurança de redes que corresponde especialmente às necessidades dos ambientes complexos encontrados em organizações atuais. A abordagem, construída segundo o paradigma de Gerenciamento Baseado em Modelos, inclui uma técnica de modelagem que trata uniformemente diferentes tipos de mecanismos e permite que o projeto de suas configurações seja executado de forma modular, mediante um modelo orientado a objetos. Esse modelo é segmentado em Subsistemas Abstratos, os quais encerram um grupo de mecanismos de segurança e outras entidades relevantes do sistema ? incluindo seus diferentes tipos de mecanismo e as inter-relações recíprocas entre eles. Uma ferramenta de software apóia a abordagem...

OEE System &=and Milk Run - PCBA [na] Bosch Security Systems Sistemas de Segurança S.A.

Reis, Pedro Miguel Gonçalves dos
Fonte: Universidade do Porto Publicador: Universidade do Porto
Tipo: Relatório Formato: XI, 113 f., 30 cm; application/pdf
POR
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65.95%
Estágio realizado na Bosch Security Systems - Sistemas de Segurança, S.A; Relatório do Estágio Curricular da LGEI 2005/2006

A systems-theoretic security model for large scale, complex systems applied to the US air transportation system; systems-theoretic security model for large scale, complex systems applied to the US air transportation system

Laracy, Joseph R. (Joseph Raymond)
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 132 p.
ENG
Relevância na Pesquisa
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Classical risk-based or game-theoretic security models rely on assumptions from reliability theory and rational expectations economics that are not applicable to security threats. Additionally, these models suffer from serious deficiencies when they are applied to software-intensive, socio-technical systems. Recent work by Leveson in the area of system safety engineering has led to the development of a new accident model for system safety that acknowledges the dynamic complexity of accidents. Systems-Theoretic Accident Models and Processes (STAMP) applies principles from control theory to enforce constraints on hazards and thereby prevent accidents. Appreciating the similarities between safety and security while still acknowledging the differences, this thesis extends STAMP to security problems. In particular, it is applied to identify and mitigate the threats that could emerge in critical infrastructures such as the Air Transportation System. Furthermore, recommendations are provided to assist systems engineers and policy makers in securely transitioning to the Next Generation Air Transportation System (NGATS).; by Joseph R. Laracy.; Thesis (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division, 2007.; This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.; Includes bibliographical references (p. 129-132).

Keeping the Promise of Social Security in Latin America

Gill, Indermit S.; Packard, Truman; Yermo, Juan
Fonte: Palo Alto, CA: Stanford University Press; Washington, DC: World Bank Publicador: Palo Alto, CA: Stanford University Press; Washington, DC: World Bank
EN_US
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Nations around the world (both large and small, rich and poor) are engaged in debate over how to reform their social security systems and care for the aged. For many countries this debate requires speculation on hypothetical scenarios, but in Latin America a rich body of experience on social security reform has been accumulating for more than a decade (for Chile, more than two decades). This report, entitled, Keeping the Promise of Social Security in Latin America, takes stock of those reforms, evaluates their successes and failures, and considers the lessons that can be drawn for the future of pension policy in the region. The authors draw on a series of background papers and surveys commissioned specifically for this inquiry, as well as existing research conducted by themselves and other pension experts. In the debate on pension reform there is no orthodoxy, as reflected in major differences of opinion among leading experts. Despite more than a decade of experience with pension reform in Latin America...

New Ideas about Old Age Security : Toward Sustainable Pension Systems in the 21st Century

Holzmann, Robert; Stiglitz, Joseph E.
Fonte: Washington, DC: World Bank Publicador: Washington, DC: World Bank
EN_US
Relevância na Pesquisa
46.13%
Given the impact of the multipillar approach to pension reform and the diversity of its implementation, the authors, who presented papers at the 1999 conference on "New Ideas About Old Age Security," re-examine the evidence and thinking on pensions and retirement security. This report examines global issues on pension reform which help put in perspective three major sets of questions. A first set of questions deals with generic issues that concern policymakers worldwide, almost independently of apporaches to reform. Most prominent but also least understood are the economic policy questions regarding the economic circumstances that are most conducive to the initiation of a reform and to its eventual success. Equally important are questions relating to the coverage of the labor force under a reformed system. Other questions concern the distributive effects of reformed systems with respect to generation, income group, and gender. A second set of questions is linked with a move toward funded provisions under a multipillar approach. A third set of questions concerns the multipillar reform approach itself. A wide consensus has emerged inside and outside the World Bank about the multipillar framework...

Revealed Preference and Self-Insurance : Can We Learn from the Self-Employed in Chile?

Barr, Abigail; Packard, Truman
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
EN_US
Relevância na Pesquisa
46.14%
Financial sector development is a critical area of effective social protection policy. A well-regulated financial sector can complement government efforts to keep households from falling into poverty - by supplying the instruments needed to pool risks, or to self-insure against losses because of the death, or disability of a household member, unexpected loss of employment, or inability to work in old age. But many of the policy recommendations that can be drawn from the social risk management framework, rest on the strong assumption that risk, and time preferences are uniform across individuals, or households. Policies meant to encourage participation in public pension systems, and to reduce evasion where such systems are mandatory (by more closely aligning benefits with payroll contributions, or introducing individual retirement accounts) implicitly attempt to emulate the savings behavior of individuals, and households faced with fully functioning capital markets, and perfect information. If no allowance is made for variation in preferences...

Electronic Security : Risk Mitigation in Financial Transactions - Public Policy Issues

Glaessner, Thomas; Kellermann, Tom; McNevin, Valerie
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
EN_US
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This paper builds on a previous series of papers (see Claessens, Glaessner, and Klingebiel, 2001, 2002) that identified electronic security as a key component to the delivery of electronic finance benefits. This paper and its technical annexes (available separately at http://www1.worldbank.org/finance/) identify and discuss seven key pillars necessary to fostering a secure electronic environment. Hence, it is intended for those formulating broad policies in the area of electronic security and those working with financial services providers (for example, executives and management). The detailed annexes of this paper are especially relevant for chief information and security officers responsible for establishing layered security. First, this paper provides definitions of electronic finance and electronic security and explains why these issues deserve attention. Next, it presents a picture of the burgeoning global electronic security industry. Then it develops a risk-management framework for understanding the risks and tradeoffs inherent in the electronic security infrastructure. It also provides examples of tradeoffs that may arise with respect to technological innovation...

Is There a Positive Incentive Effect from Privatizing Social Security : Evidence from Latin America

Packard, Truman G.
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
EN_US
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56.19%
There is increasing concern among policymakers that social security reforms that involve a transition to individual retirement savings accounts may exclude certain groups of workers from coverage against the risk of poverty in old age. While most public pay-as-you-go systems pool the risk of interrupted careers and periods of low earnings over the covered population, the reformed systems shift the burden of these risks to the individual. Adequate coverage under a system of individual retirement accounts depends critically on accumulating sufficient savings through regular contributions. In developing countries where opportunities for unregulated employment abound and workers can easily escape mandated social insurance, theory suggests that reforms will increase the number of contributors to social security by reducing distortions and improving incentives in the labor market. Motivated primarily by fiscal pressures stemming from the deficits of overly generous, poorly administered public pension systems...

Defining, Measuring, and Benchmarking Administrative Expenditures of Mandatory Social Security Programs

Sluchynsky, Oleksiy
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Tipo: Trabalho em Andamento
EN_US
Relevância na Pesquisa
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This study provides a framework for comparison and benchmarking of administrative expenditures of public and private social security programs. The paper presents the genesis of the inquiries into the subject, reviewing some of the most relevant literature on administrative expenditures and the costs of mandatory programs produced over the past two decades. The quantitative analysis builds on the extensive body of literature, but our framework evolved considerably from earlier studies. Our dataset includes over 100 observations and a broad set of explanatory variables. The authors developed and compared a number of standardized cost indices discussing their advantages and limitations. The author also discusses major cost components and their shares in total program costs. The analysis explains over 90 percent of variation in administrative expenditures. It confirms some of the hypotheses expressed in the earlier studies and presents new evidence of driving factors for costs. The author developed three different specifications for statistical analysis. The first set looks at the impact of design of a program on total costs. The second group of specifications assesses differences in costs of managing pension liabilities between the public and private mandatory pension schemes. Finally...

Estudio de sistemas de seguridad basado en la detección de intrusos física y tecnológica; Study of security sistems based intrudion detection physical and technological

Aranda Luengo, Ricardo
Fonte: Universidade de Cantabria Publicador: Universidade de Cantabria
Tipo: Dissertação de Mestrado
SPA
Relevância na Pesquisa
46.16%
RESUMEN: Toda persona u organización requiere de seguridad tanto física como tecnológica. A lo largo de estos últimos años han aumentado las tecnologías y los sistemas de seguridad empleados son cada vez más eficaces. El objetivo de este proyecto es el análisis y estudio de todos los sistemas de seguridad cuya finalidad es la misma: prevenir y actuar ante cualquier intrusión física y lógica. Desde hace unos meses formo parte del equipo de Ingeniería de Seguridad de la empresa ITM Sistemas: empresa con una dilatada experiencia en la seguridad integral de todo tipo de instalaciones. Este estudio es una motivación personal como ampliación a mis conocimientos de la seguridad física y aplicaciones actuales de la seguridad privada. Esta motivación deriva del interés y adquisición de conocimientos de seguridad informática dada su relación con la seguridad física pero en su aplicación lógica. Un claro ejemplo de aplicación de los dos tipos de seguridad es la integración de las grabaciones de las cámaras de tecnología IP a través de la nube. Con el avance de las tecnologías de la información y, con ello, la integridad, confidencialidad y disponibilidad de las mismas en redes internas y externas, es necesaria la implantación de medidas cada vez más complejas que garanticen la seguridad tanto física como lógica de toda información de vital importancia. Como objeto de este proyecto se analizará y estudiará la propuesta de un Sistema de Seguridad Integral como un único sistema...

Entropy and self-organization—an open system approach to the origins of homeland security threats

Dobson, Thomas Kirwan
Fonte: Monterey, California: Naval Postgraduate School Publicador: Monterey, California: Naval Postgraduate School
Tipo: Tese de Doutorado
Relevância na Pesquisa
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Approved for public release; distribution is unlimited; This thesis addresses the problem that there is no coherent, unifying paradigm for understanding the origins of homeland security threats. In addition, the thesis asks if the concept of disorder as understood in the dynamics of open, dissipative systems can provide a way of understanding real-world homeland security threats. Ideas from approaches to complex systems based on the idea of dissipative systems were synthesized to create a scalable model of a living social system that imports and exports disorder (entropy) via the transfer of matter, energy, and information. Then, the idea of a dissipative system that exports disorder to its surroundings as it self-organizes was meta-theoretically applied to the processes of self-organization occurring in the world, such as technological advance, population growth, economic growth, and globalization, and can be causally linked to real-world homeland security threats. One conclusion is that, on a descriptive level, the causes of homeland security threats can be modeled as a complex, dissipative system. Another conclusion is that causes of homeland security threats and the means to counter them often lie in complex social, economic, and environmental processes that are well outside the jurisdiction of Department of Homeland Security and the homeland security enterprise...

What Can Countries in Other Regions Learn from Social Security Reform in Latin America?

Gill, Indermit S.; Ozer, Ceren; Tatucu, Radu
Fonte: World Bank Publicador: World Bank
Tipo: Journal Article; Journal Article
Relevância na Pesquisa
46.13%
About a dozen countries in Latin America have enacted reforms that include elements being contemplated elsewhere, including the partial privatization of social security. It is not easy to draw universal lessons for social security reform from the experience of countries such as Argentina, Chile, and Mexico, however, where sizeable public pension systems went bankrupt before the populations aged, mainly because of mismanagement. Most developing economies have much smaller social security systems. Relatively well-managed systems in industrial countries face problems that are long term in nature and have been brought about by an aging population. The experiences of Latin America nevertheless offer some general lessons for countries in other parts of the world. These lessons relate to changes in labor market incentives accompanying reforms and how workers react to them, government actions that have met with success in managing the transition to funded pensions, and the expectations of individuals from social security systems. Latin America's reforms suggest that the most effective approach is to keep payroll taxes low, governments solvent, and social security systems focused on providing reasonable insurance against poverty in old age.

Peru : Restoring the Multiple Pillars of Old Age Income Security

World Bank
Fonte: Washington, DC Publicador: Washington, DC
Tipo: Economic & Sector Work :: Other Social Protection Study; Economic & Sector Work
ENGLISH; EN_US
Relevância na Pesquisa
46.13%
In this report, the components of a national retirement security system are categorized - as "pillars", or as "tiers" according to their objective. This is in marked contrast to other publications that categorize the branches of a pension system in accordance with who administers them (the public or private sector); how are benefits structured (final-salary defined benefit formula, or defined contributions); or, their financing mechanism (pay-as-you-go, or full funding). Thus, the term "first pillar" or "pillar one" refers to that part of a pension system intended to keep elderly out of poverty; "second pillar" or "pillar two" to that part intended to help individuals smooth consumption over their life-cycle, i.e., to prevent a dramatic fall in income at retirement time; and, "third pillar" or "pillar three" to the instruments, and institutions available on a voluntary basis for workers to increase their income in old age. This report intends to explore, and present policy options to extend formal protection against old age poverty risks...

Service Oriented Architecture in Network Security - a novel Organisation in Security Systems

Hilker, Michael; Schommer, Christoph
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 07/05/2008
Relevância na Pesquisa
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Current network security systems are a collection of various security components, which are directly installed in the operating system. These check the whole node for suspicious behaviour. Armouring intrusions e.g. have the ability to hide themselves from being checked. We present in this paper an alternative organisation of security systems. The node is completely virtualized with current virtualization systems so that the operating system with applications and the security system is distinguished. The security system then checks the node from outside and the right security components are provided through a service oriented architecture. Due to the running in a virtual machine, the infected nodes can be halted, duplicated, and moved to other nodes for further analysis and legal aspects. This organisation is in this article analysed and a preliminary implementation showing promising results are discussed.; Comment: 4 pages

The Development of a graduate course on identity management for the Department of Networking, Security, and Systems Administration

Mitchell, Marsha
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
EN_US
Relevância na Pesquisa
46.16%
Digital identities are being utilized more than ever as a means to authenticate computer users in order to control access to systems, web services, and networks. To maintain these digital identities, administrators turn to Identity Management solutions to offer protection for users, business partners, and networks. This paper proposes an analysis of Identity Management to be accomplished in the form of a graduate level course of study for a ten-week period for the Networking, Security, and Systems Administration department at Rochester Institute of Technology. This course will be designed for this department because of its emphasis on securing, protecting, and managing the identities of users within and across networks. Much of the security-related courses offered by the department focus primarily on security within enterprises. Therefore, Identity Management, a topic that is becoming more popular within enterprises each day, would compliment these courses. Students that enroll in this course will be more equipped to satisfy the needs of modern enterprises when they graduate because they will have a better understanding of how to address security issues that involve managing user identities across networks, systems, and enterprises. This course will focus on several aspects of Identity Management and its use in enterprises today. Covered during the course will be the frameworks of Identity Management...

Costs and Benefits of Advanced Public Transportation Systems at DART First State

Racca, David P.
Fonte: Center for Applied Demography & Survey Research Publicador: Center for Applied Demography & Survey Research
Tipo: Outros Formato: 605361 bytes; application/pdf
EN_US
Relevância na Pesquisa
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This project focuses on an evaluation of Automated Vehicle Locator (AVL), dispatching and routing software and hardware systems, security systems and related technologies that have been recently (May 2001) implemented at DART First State. These technologies are addressed and evaluated nationally under the category of Advanced Public Transportation Systems (APTS).