The territorial-environmental perception in fishing zones

Geography was always concerned with the study of the relationship between social groups and the environment in which they interact as natural resources for their survival. This relationship was always intertwined by power determinations in the organization of forms of appropriation of natural resources, deriving different types of territorial assets. These territorial assets demonstrate a variety of actors, involved in a certain territory and materializing different actions for the appropriation of space and use of the natural resources. In the case of fishing this is not different, since we verified that fishing practice is witnessed by a variety of actors, fishermen, fishing community, fishing association, fishing zone and regulatory agencies. Each of these actors relate in specific ways to the fishing spaces and material specific actions to define the territory, adopting territorial assets and a diversity of perceptions which sometimes conflict to each other. This study is part of a research which, through direct field research, aims at accomplishing an analysis of the way of life of the fishermen of the Colony of Fishermen Z 62, headquartered in the municipal district of Breves, state of Pará, and of how they acknowledge their territory, in the way they interact with other actors which use the same territory in other ways unrelated to fishing

Autonomous Incident Response

Trabalho de Projeto de Mestrado, Segurança Informática, 2022, Universidade de Lisboa, Faculdade de CiênciasInformation security is a must-have for any organization willing to stay relevant and grow, it plays an important role as a business enabler, be it from a regulatory perspective or a reputation perspective. Having people, process, and technology to solve the ever growing number of security incidents as fast as possible and with the least amount of impact is a challenge for small and big companies. To address this challenge, companies started investing in Security Orchestration, Automation, and Response (SOAR) [39, 68, 70]. Security orchestration is the planning, integration, cooperation, and coordination of the activities of security tools and experts to produce and automate required actions in response to any security incident across multiple technology paradigms [40]. In other words, the use of SOAR is a way to translate the manual procedures followed by the security analysts into automated actions, making the process faster and scalable while saving on human resources budget. This project proposes a low-cost cloud native SOAR platform that is based on serverless computing, presenting the underlying details of its design. The performance of the proposed solution was evaluated through 364 real-world incidents related to 11 use cases in a large multinational enterprise. The results show that the solution is able to decrease the duration of the tasks by an average of 98.81% while having an operating expense of less than $65/month. Prior to the SOAR, it took the analyst 75.84 hours to perform manual tasks related to the 11 use cases. Additionally, an estimated 450 hours of the analyst’s time would be used to run the Update threat intelligence database use case. After the SOAR, the same tasks were automatically ran in 31.2 minutes and the Update threat intelligence database use case ran 9.000 times in 5.3 hours

Natural killer cell activation by dendritic cells: balancing inhibitory and activating signals

Natural killer (NK) cells have originally been identified by their spontaneous cytolytic potential against tumor cells, which, however, might result from pre-activation due to prior pathogen exposure. Resting NK cells, on the contrary, require activation by bystander antigen-presenting cells to reach their full functional competence. In this review, we will summarize studies on how dendritic cells (DCs), the most potent type of antigen-presenting cell, communicate with human NK cells to activate them in secondary lymphoid organs and to integrate signals from activated NK cells at sites of inflammation for their own maturation. Furthermore, we will review aspects of the immunological synapse, which mediates this cross-talk. These studies provide the mechanistic understanding of how mature DCs can activate NK cells and survive to go on for the activation of adaptive immunity. This feature of DCs, to activate different waves of immune responses, could be harnessed for immunotherapies, including vaccination

Defrost Cycle Optimization for Fan-Supplied Tube-Fin Evaporators Subjected to Frosting Conditions

Frost accretion on a tube-fin evaporator surface raises its thermal and hydraulic resistances, which in turn deteriorates the cooling capacity of the refrigeration system. For this reason, periodic defrost operations are required to recover the initial performance of the system. Most defrost techniques rely on supplying heat to the frost layer. Due to technological and thermodynamic limitations, only part of the heat supply is effectively used to melt the frost built-up on the evaporator, while the rest increases the refrigerator thermal load. Therefore, the amount of heat dissipated, the duration of a defrost operation, and the time between two consecutives defrost operations must be considered for properly designing the defrost system. The present paper assesses, by means of a simulation model that considers the airflow reduction with frost accretion, the effects of evaporator operating and geometric conditions, and defrost cycle parameters on the time-averaged cooling capacity. The results pointed out the existence of an optimum time for the defrost operation, indicating that short intervals between two defrost operations increase the thermal load by frequent heat supply, whilst long intervals promote severe capacity depletion by frost clogging

The Global Movement of the Transition from Linear Production to the Circular Economy Applied to the Sustainable Development of Cities

The process of the linear exploration production, production, usage and waste generation has been taking humanity to the planetary boundaries. The transition to circular economy models dissociates the economic growth from the natural resource depletion and from the environmental degradation. The opportunity to make changes and to find vital solutions to the planet's sustainability emerge in the cities, due to its relevance on population growth, production and consumption. The objective of this research is promoting the understanding of the transition from linear production to the circular economy applied to the sustainable development of cities. The methodology is based on the qualitative approach and the applied technique follows the stages of the bibliographic research. The objectives classify this research as an exploratory, descriptive study with explanatory slant. The bibliographic sources are mostly selected from 2015, when the Sustainable Development Goals and the Paris Agreement were signed, until 2020. The search of the existing circular models provides, even in transition from the linear process, valuable contributions to the resource protection, promotion of the production and sustainable consumption, as well as the generation of new income opportunities, of market and of social integration. The results of the analyzes of the selected studies indicate that the sustainable urban development can be enabled by the implementation of circular systems on a holistic and inclusive approach..O processo de produção linear de exploração, produção, consumo e geração de resíduos tem levado a humanidade aos limites planetários. A transição para modelos econômicos circulares dissocia o crescimento econômico do esgotamento dos recursos e da degradação ambiental. É nas cidades que surgem a oportunidade de mudanças e soluções vitais à sustentabilidade do planeta, dada a sua relevância no crescimento populacional, produção e consumo. O objetivo dessa pesquisa é promover o entendimento da transição da produção linear para a economia circular aplicado ao desenvolvimento sustentável das cidades. A metodologia tem abordagem qualitativa e a técnica empregada segue as fases da pesquisa bibliográfica. Os objetivos a classificam como exploratória-descritiva, com viés explicativa. As fontes são predominantemente selecionadas a partir de 2015, quando do acordo global pelos 17 Objetivos do Desenvolvimento Sustentável e do Acordo de Paris, até 2020. A pesquisa de modelos circulares existentes, mesmo que em transição do processo linear, apresentam contribuições valorosas para a preservação dos recursos naturais, promoção da produção e consumo sustentáveis, geração de novas oportunidades de renda, de mercado e integração social. Os resultados das análises dos estudos selecionados indicam que o desenvolvimento sustentável das cidades pode ser viabilizado pela implementação de sistemas circulares em uma abordagem holística e inclusiva

Avaliação de políticas públicas para o desenvolvimento sustentável: um estudo de caso dos programas de educação de Curitiba de 1998 a 2005

A escassez de recursos públicos, incremento das demandas urbanas por serviços públicos e a crescente democratização eletrônica são questões que retratam a importância de definição, planejamento e execução de políticas públicas efetivas. Este artigo avalia as políticas públicas recentes de Curitiba com enfoque muldisciplinar, ou seja, envolvem aspectos econômicos, educacionais e políticos, com destaque para o programa de ensino fundamental. A pesquisa é exploratória, aplicada, tendo com objeto de estudo os planos plurianuais de Curitiba (1998-2001 e 2002-2005), e qualitativa com dados secundários. Pode-se verificar que há necessidade de maior transparência ao processo de planejamento das políticas públicas e compreender o processo complexo do desenvolvimento sustentável para avaliar a efetividade da política. O programa analisado da educação é constituído de várias ações sem a integração e a análise de impacto necessária para demonstrar a sua efetividade

Thermal-Hydraulic Optimization of Fan-Supplied Tube-Fin Evaporators for Frosting Conditions Aiming at Minimum Energy Consumption

This work is aimed at the optimal design (i.e. number of transversal and longitudinal tube rows, number of fins) of fan-supplied tube-fin evaporators for light commercial refrigeration applications operating under frosting conditions. Quasi-steady-state algebraic models were put forward for the refrigeration cycle and its components for computing not only the cooling capacity depletion due to the evaporator frosting over time, but also the changes experienced by the evaporating temperature and its effect on the compressor power. Transient, unsteady-state algebraic models were also advanced to account for the temperature and humidity variations inside the refrigerated compartment, and so the compressor runtime. The optimization exercise aiming at system-level energy consumption minimization revealed that, when the evaporator volume and width are held constrained, the lowest energy consumption was achieved for evaporators with evaporators with (3x6), (4x4) and (6x3) (transversal ´ longitudinal tubes), suggesting that the geometry is robust regarding the evaporator aspect ratio for fan-constrained conditions

COOPERATIVISMO E DESENVOLVIMENTO NO OESTE PARANAENSE: O CASO DA C.VALE NA REGIÃO DE PALOTINA/ PR

O objetivo deste artigo é analisar o desenvolvimento sócio-econômico ocorrido na região de atuação da C Vale Cooperativa Agroindustrial, após a industrialização avícola ocorrida em 1997. A pesquisa foi realizada com os cooperados da C. Vale, especialmente os que desenvolvem atividade avícola. O questionário contou com questões que avaliavam os motivos da associação do cooperado, a geração de renda, as condições sócio-econômicas, e a percepção do cooperado da importância da C. Vale para o desenvolvimento sócio-econômico da região. As cooperativas contribuem para a evolução dos seus associados em duas grandes dimensões, a econômica e a social. Na dimensão econômica com o melhoramento da renda através da melhor disponibilidade do produto ou serviços do cooperado para o mercado consumidor. Na dimensão social através da inclusão social e da disponibilização, ao cooperado, de novos conhecimentos, além de aproximá-lo de uma rede de contato com outros cooperados. A cooperativa foi apontada na pesquisa como fomentadora da educação local, através de cursos, palestras e seminários que são ministrados aos cooperados e colaboradores. A pesquisa demonstrou, de forma indireta, que há ganho de escolaridade comparando os cooperados e seus filhos maiores de 17 anos.----------------------------------------------The objective of this paper is to analyze the socio-economical development occurred in the action area of the C Vale Cooperativa Agroindustrial, after the poultry industrialization that occurred in 1997. The research was carried out with the members/associates of the cooperative society of the C. Vale, especially the ones developing the poultry activity. The questionnaire included questions that evaluated the reasons for association of its members, the generation of income, the socio-economic conditions, and their perception of the importance of C. Vale for the socio-economic development of the region. The cooperative contributes for the evolution of the associates in two big dimensions: economical and social. In the economical dimension contributes with the improvement of the income, through the best availability of the product or service of the associate to the consumer market. In the social dimension through the social inclusion, and through the availability, for the associate, of new knowledge, besides approaching him to a network of contact with other associates. The cooperative was appointed in the research as a promoter of the local education, through courses, lectures and seminaries that are administered to the associates and its co-workers. The research showed, in an indirect way, that there was improvement in education when comparing the cooperated and their sons over 17.Cooperativismo agropecuário, integração avícola, desenvolvimento local, Paraná, Co-operativism, aviculture integration, regional development, Paraná, Agribusiness,