3,585 research outputs found
Development of a Cyber Range with description language for network topology definition
Cyber Ranges are an essential tool for cybersecurity trainings and experiments because they enable to setup virtual, isolated and reproducible environments that can be safely used to execute different types of tests and scenarios. The preparation of scenarios is the most time-consuming phase, which includes the configuration of the virtual machines and the definition of the network topology, so it is important for a Cyber Range to include tools that simplify this operation. This work focuses on how to implement and setup a Cyber Range that includes the necessary features and tools to simplify the setup phase, in particular for large topologies. The literature review provides an analysis of the selected open-source and research solutions currently available for Cyber Ranges and their configuration for use in different scenarios. This work presents the development of a Cyber Range based on the open-source framework OpenStack and the entire design process of a new Description Language, starting from the analysis of the requirements for the defined use-cases, defining and designing the required features, the implementation of all the required components, and the testing of the correctness and effectiveness of the whole system. A comparison of the implemented solution against the selected solutions in the literature study is provided, summarising the unique features offered by this approach. The validation of the Description Language implementation with the defined use cases demonstrated that it can reduce the complexity and length of the required template, which can help to make the setup of scenarios faster
Towards Enhancing EFL Academic Literacy : The Effect of Genre-Based Instruction on Summary-Response Writing
This study investigates the effect of genre-based instruction on the process of teaching summary-response writing to EFL university students at an advanced level of language proficiency. A quasi-experimental research design (one-group pre- and post-test) was followed and quantitative and qualitative methods to collect and analyse the data were employed. The participants were one instructor, two raters and an intact group of 46 EFL students attending the fourth year of five-year Teacher Training, Licentiate and Translation Studies Programmes in an Argentinian university. The subjects were administered a pre-test requesting them to write a summary-response before instruction. After a ten-week period of instruction following the genre-based approach, a post-test was administered. Two independent raters scored students’ summary-responses using an analytic scoring scale designed for this study. The quantitative data collected from the tests were analysed using two statistical tests, namely, Cohen’s Simple Unweighted Coefficient and Wilcoxon Rank Sums (matched pairs). Results indicated that the difference in means between pre- and post-test scores was statistically significant. The information gathered was triangulated with the analysis of summary-response writing strategies carried out by the researcher, the data provided by pre- and post-study questionnaires and self-assessment checklists administered to the students, and interviews held with the instructor. The results provided by these measures support the hypothesis that genre-based instruction is an effective pedagogical tool to teach summary-response writing to EFL university students at an advanced level of language proficiency
Sistema intensivo de suínos criados ao ar livre - SISCAL. Recomendações para instalação e manejo de bebedouros.
Características do sistema; Necessidade e consumo de água; Rede hidráulica.bitstream/item/59507/1/CUsersPiazzonDocuments8.pd
TEORIA DAS ORGANIZAÇÕES E OPERAÇÕES DE MANUTENÇÃO DA PAZ COMPLEXAS: NOTAS A PARTIR DA MINUSTAH
How far Organization Theory can shed light on complex peacekeeping operations, observing the explanatory power and differences among more hierarchically-based approaches and network theory? It also makes the case for further research on why and how local elites, experienced with foreign intervention, hijack international organizations to advance their own interests.Como a Teoria das Organizações pode esclarecer operações de manutenção da paz complexas, observando o poder de explicação e as diferenças entre as abordagens mais baseadas em hierarquia e a teoria de redes? Isso também propicia uma pesquisa mais afundo em por que e como as elites locais, experientes com a intervenção estrangeira, “sequestram” as organizações internacionais para promover seus próprios interesses
An evolutionary view of the Brazilian poultry industry and its firms
New technologies, innovation, and research and development of new products can help developing economies to transform models of production and raise productivity. Several countries in Asia have shown that investing in education, research. Technological adaptation and creation of new technology may foster economic development. In the case of the Brazilian aviculture, the interaction between various actors (private firms, federal government, provinces and municipalities, along with research centers), transformed an artisanal activity in one of the most dynamic sectors of agriculture. The combined action of these actors sharply increased production and consumption, and reduced prices. Moreover, Brazil became the largest exporter of aviculture goods to the international markets. This paper analyzes how this transformation happened looking at the development of the aviculture sector, using evolutionary and Schumpeterian theory. Particular emphasis will be given to the study of creation and adaptation of technology as a source of international competitiveness, which contributed to sustain a trajectory of exports and the subsequent process of internationalization of the Brazilian firms.dinnovation, technologies, research & development, productivity, industrial aviculture
Wal-Mart e suas reestruturações empresariais para disputar o mercado mundial do varejo
Pelos dados da Wal Mart, a Companhia tinha, no início de 2004, 1.478 Lojas de descontos, 1.471 Supercenters, 538 Sam’s Clubs e 64 Mercados de vizinhança nos EUA. Em outros nove países operava 982 Lojas de descontos, 257 Supercenters, 80 Sam’s Clubs e 36 Mercados de vizinhança, totalizando 4.906 lojas. No ano passado teve um faturamento bruto de 256 bilhões de dólares, um lucro líquido de US$ 6,6 bilhões e contava com cerca de 1,5 milhão de funcionários. Analisar a história desta empresa que iniciou suas atividades em Bentonville, pequena cidade no sudoeste americano em 1945 e acompanhar seu crescimento, é como verificar a evolução do varejo e o papel dos “managers” das grandes empresas americanas, neste caso, desempenhado por Sam Walton e seus sucessores. Para dar continuidade à empresa, após sua morte, Walton providenciou uma significativa presença da família atuando no conselho de administração, deixando o papel da direção executiva nas mãos de diretores profissionais. A partir de 1992, assim constituída, a nova direção da Wal-Mart empreendeu uma bem montada estratégia de ocupação do mercado internacional, no sentido de disputar não só as vendas nos Estados Unidos, mas de estabelecer-se em cerca de vinte países que lhes permitam uma forte presença internacional.Wal-Mart; empresa multinacional; economia industrial; estratégias de expansão; varejo
A SADIA E AS SUCESSIVAS SUCESSÕES NAS EMPRESAS FAMILIARES
Estudar a história da Sadia com o objetivo de entender a relação entre a empresa e o comando direto nas mãos do fundador, filhos-genros e netos é o que se propõe este texto. Inicia mostrando como Attilio Fontana passou de comerciante a industrial, começando com um pequeno empreendimento de poucos produtos e voltado para o mercado local e regional. Em seguida busca entender como se deu a evolução em número de unidades industriais, diversificação de produtos, ocupação do mercado nacional e exportações, sob o comando da segunda geração. A partir da primeira metade da década de 1990, sob a direção dos netos do fundador, analisa a situação atual da companhia no mercado interno, assim como sua presença cada vez mais significativa no exterior.Sadia, empresa familiar, produção de alimentos, sucessão
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