874 resultados para Homology of groups


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The main purpose of this study was to obtain primary cell cultures derived from Lucilia sericata (Diptera: Calliphoridae). Necrophagous this fly is used for determination of post-mortem interval and larval therapy. Since explants embryonated eggs were performed in various culture media (Grace Schneider, MM/VP12, DMEM, Grace/L-15 and L-15), supplemented with 20% fetal serum. Sterilization of the biological material was carried out by immersing it in formaldehyde and sodium hypochlorite solutions. The cell growth was initiated in the L-15, MM/VP12, and Schneider Grace/L-15 in an average time of 10 days after completion of planting by the proliferation of groups of colonies scattered on the surface of the boxes crops and also from the endings of larval fragments. The evolution of cell growth to the formation of monolayer semi-confluent was relatively fast, reaching at 3 weeks post-explant. Cellular morphology in cultured cells was heterogeneous, especially epithelioid forms, similar to nerve, giant and irregular. Comparison of the growth characteristics of these cell cultures with those obtained from other species of flies was more favorable in the evolution of those obtained from L. sericata, on the grounds that the cells are better adapted to the physical-chemical conditions of several culture media. This is the first report of a cell culture-fly family Calliphoridae.

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Los adelantos tecnológicos han transformado prácticamente todos los aspectos de nuestras vidas. En la última década, la producción de conocimiento se ha dado casi de manera exponencial, y ello, sin lugar a dudas, también tiene implicaciones en la forma como nos relacionamos entre nosotros como ciudadanos y con el Estado. El presente artículo hace una reflexión acerca de los desafíos que el sistema democrático actual tiene para lograr una autodeterminación de los grupos e individuos y la inclusión efectiva en el sistema. Para tal fin, se deben encaminar dos grandes procesos: en el primero, el objetivo debe ser el empoderamiento de la gente con respecto al uso creativo de todas aquellas herramientas electrónicas que el mundo ofrece y el segundo tiene que ver con la construcción que el Estado debe realizar para comunicarse con los ciudadanos en un nuevo contexto de ubicuidad social. ---Electronic power to the people: a challenge to contemporary democracyTechnological advances have transformed virtually every aspect of our lives. In the last decade, knowledge production has grown almost exponentially, and this, undoubtedly has implications in how we relate to each of us as citizens and the state. This article makes a reflection on the challenges that the current democratic system is to achieve self-determination of groups and individuals and the effective inclusion into the system. To that end, must be directed at two major processes, the first aimed at empowering people in all those electronic tools that the world offers us to make it a creative use, and the second has to do with the ability of the State have to build to communicate with citizens in a new context of social ubiquity.Key words: electronic power, Internet, democracy, inclusion, self determination, State, government, education, rights.---O poder eletrônico para gente: Um desafio para a democracia contemporâneaOs avanços tecnológicos têm transformado praticamente todos os aspectos de nossas vidas. Na última década, a produção de conhecimento se tem dado quase de maneira exponencial, e isso, certamente, também tem implicações na forma como nos relacionamos entre nós como cidadãos e com o Estado. O presente artigo faz uma reflexão acerca dos desafios que o sistema democrático atual tem para lograr uma autodeterminação dos grupos e indivíduos e a inclusão efetiva no sistema. Para tal fim, se devem encaminhar dois grandes processos: no primeiro, o objetivo deve ser o empoderamento das pessoas em relação ao uso criativo de todas aquelas ferramentas eletrônicas que o mundo oferece e o segundo tem que ver com a construção que o Estado deve realizar para se comunicar com os cidadãos em um contexto de ubiqüidade social.Palavras chave: Poder eletrônico, democracia, inclusão, autodeterminação, Estado, governo, educação, direitos.

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El lobby o cabildeo es una de las tácticas más utilizadas por los grupos de presión para lograr sus objetivos. Este mecanismo se refiere a la presión ejercida sobre un ente gubernamental con el fin de promover intereses particulares

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La problemática parte de que las interacciones entre China y América Latina han sido pocas. En particular, las negociaciones con China han probado ser difíciles y en algunos casos han fracasado. Motivo parece ser que la negociación china difiere

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El objetivo principal de esta monografía es identificar cuáles son las razones que justifican las contradicciones entre el discurso y el comportamiento de Estados Unidos en el marco de la Organización Mundial del Comercio, particularmente con relación a prácticas anticompetitivas derivadas del programa de protección a la agricultura del país. Para ello se analizan el interés nacional y los elementos de la seguridad nacional a partir de los cuales éste se ha construido. También se evalúan los procesos de formulación de política comercial y las interacciones entre los representantes políticos, las asociaciones de productores y el sector privado para mostrar como este comportamiento contradictorio corresponde a la legitimización de un interés particular.

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La Tesi aporta un sistema d'indicadors d'avaluació per a les polítiques socioculturals municipals. Una eina per a detectar mancances, interpretar els resultats, orientar línies d'acció i millorar les polítiques socioculturals municipals. S'adreça fonamentalment a l'avaluació de les polítiques socioculturals de municipis petits i mitjans i parteix del paradigma de l'empoderament. Emmarcant-nos en aquest paradigma plantegem que les polítiques socioculturals municipals haurien d'apostar per la democratització de la cultura, estimular la creació d'identitat comunitària i l'autovaloració dels grups i les comunitats, i potenciar l'educació com a procés permanent i de desenvolupament comunitari.El sistema d'indicadors s'estructura en dues dimensions; la sociocultural, formada per 7 objectius d'avaluació amb 58 indicadors amb la intenció d' identificar i analitzar la política sociocultural que es fa al municipi, i la contextual, sistematitzada entorn 5 objectius d'avaluació amb 20 indicadors que han de permetre emmarcar les polítiques socioculturals. El nombre total d'indicadors de la proposta és 78.

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Os indicadores económicos, evoluem de acordo com as actividades que se desenvolvem no país. Assim progridem ou regridem em função do desempenho dos sectores de actividade económica. Estes indicadores agrupam-se em secções diversas. Deste modo interessa, verificar de que forma essas actividades, que se agrupam em situações distintas, se assemelham ou não entre si. A classificação de variáveis e objectos semelhantes em grupos é uma importante actividade humana. Em todas as fases da vida, a classificação faz parte do processo de aprendizagem, principalmente, quando esta tem um peso enorme tal como quando uma criança aprende a distinguir o preto do branco, o pai da mãe. A classificação torna-se num processo do quotidiano onde no subconsciente estão a ser aplicadas ordenações consoante as situações com que nos deparamos constantemente. Em temas actuais, como a economia, gestão e marketing a classificação surge para a investigação de relações entre conjuntos de objectos ou variáveis. Isto poderá resultar, ou não, num resumo de dados sob a forma de grupo, de objectos ou variáveis semelhantes entre si (dentro do mesmo grupo) e dissemelhantes em relação a grupos distintos. Este trabalho tem como objectivo verificar de que forma as actividades económicas portuguesas são agrupadas entre si, mediante o estado da evolução económica nacional entre os anos de 2009 e 2010. Nesta análise são trabalhadas vinte e sete actividades económicas, agrupadas em sete secções ou ramos diferentes de forma a conseguir verificar como se comportam áreas que contêm produtos ou serviços totalmente distintos. Neste trabalho é utilizada a análise classificatória. Através deste método é estudado o nível de semelhança das actividades sob a representação de grupos. Nas diferentes áreas de actividades são estudados quatro índices: Volume de Negócios; Emprego; Remunerações e Horas trabalhadas.

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This paper describes a novel methodology for observing and analysing collaborative design by using the concepts of cognitive dimensions related to concept-based misfit analysis. The study aims at gaining an insight into support for creative practice of graphical communication in collaborative design processes of designers while sketching within a shared white board and audio conferencing environment. Empirical data on design processes have been obtained from observation of groups of student designers solving an interior space-planning problem of a lounge-diner in a shared virtual environment. The results of the study provide recommendations for the design and development of interactive systems to support such collaborative design activities.

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Housing Associations (HAs) contribute circa 20% of the UK’s housing supply. HAs are however under increasing pressure as a result of funding cuts and rent reductions. Due to the increased pressure, a number of processes are currently being reviewed by HAs, especially how they manage and learn from defects. Learning from defects is considered a useful approach to achieving defect reduction within the UK housebuilding industry. This paper contributes to our understanding of how HAs learn from defects by undertaking an initial round table discussion with key HA stakeholders as part of an ongoing collaborative research project with the National House Building Council (NHBC) to better understand how house builders and HAs learn from defects to reduce their prevalence. The initial discussion shows that defect information runs through a number of groups, both internal and external of a HA during both the defects management process and organizational learning (OL) process. Furthermore, HAs are reliant on capturing and recording defect data as the foundation for the OL process. During the OL process defect data analysis is the primary enabler to recognizing a need for a change to organizational routines. When a need for change has been recognized, new options are typically pursued to design out defects via updates to a HAs Employer’s Requirements. Proposed solutions are selected by a review board and committed to organizational routine. After implementing a change, both structured and unstructured feedback is sought to establish the change’s success. The findings from the HA discussion demonstrates that OL can achieve defect reduction within the house building sector in the UK. The paper concludes by outlining a potential ‘learning from defects model’ for the housebuilding industry as well as describing future work.

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Using Sigma theory we show that for large classes of groups G there is a subgroup H of finite index in Aut(G) such that for phi is an element of H the Reidemeister number R(phi) is infinite. This includes all finitely generated nonpolycyclic groups G that fall into one of the following classes: nilpotent-by-abelian groups of type FP(infinity); groups G/G `` of finite Prufer rank; groups G of type FP(2) without free nonabelian subgroups and with nonpolycyclic maximal metabelian quotient; some direct products of groups; or the pure symmetric automorphism group. Using a different argument we show that the result also holds for 1-ended nonabelian nonsurface limit groups. In some cases, such as with the generalized Thompson`s groups F(n,0) and their finite direct products, H = Aut(G).

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”You are not welcome in our lovely Malmo”: Conditions for belonging in mobilization against organized crime Several murders occurred in the Swedish city of Malmö between 2011 and 2012. Against this backdrop, the municipality and the police initiate a public campaign. The aim is to mobilize the city’s population against organized crime. In this study the ideology of the initiative is analysed. It is argued that the representation of organized crime as nurtured by the black economy can be read as an example of neoliberal revanchist city agenda, albeit an ambivalent one. The role of groups working in the low-price sphere of the economy becomes that of a threatening projection, while a consumption ideology regulates the boundaries of belonging

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Most of water distribution systems (WDS) need rehabilitation due to aging infrastructure leading to decreasing capacity, increasing leakage and consequently low performance of the WDS. However an appropriate strategy including location and time of pipeline rehabilitation in a WDS with respect to a limited budget is the main challenge which has been addressed frequently by researchers and practitioners. On the other hand, selection of appropriate rehabilitation technique and material types is another main issue which has yet to address properly. The latter can affect the environmental impacts of a rehabilitation strategy meeting the challenges of global warming mitigation and consequent climate change. This paper presents a multi-objective optimization model for rehabilitation strategy in WDS addressing the abovementioned criteria mainly focused on greenhouse gas (GHG) emissions either directly from fossil fuel and electricity or indirectly from embodied energy of materials. Thus, the objective functions are to minimise: (1) the total cost of rehabilitation including capital and operational costs; (2) the leakage amount; (3) GHG emissions. The Pareto optimal front containing optimal solutions is determined using Non-dominated Sorting Genetic Algorithm NSGA-II. Decision variables in this optimisation problem are classified into a number of groups as: (1) percentage proportion of each rehabilitation technique each year; (2) material types of new pipeline for rehabilitation each year. Rehabilitation techniques used here includes replacement, rehabilitation and lining, cleaning, pipe duplication. The developed model is demonstrated through its application to a Mahalat WDS located in central part of Iran. The rehabilitation strategy is analysed for a 40 year planning horizon. A number of conventional techniques for selecting pipes for rehabilitation are analysed in this study. The results show that the optimal rehabilitation strategy considering GHG emissions is able to successfully save the total expenses, efficiently decrease the leakage amount from the WDS whilst meeting environmental criteria.

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An increasing interest in society towards a tourist questions inspire studies for the new city plans. The objective of this plans is development the structure for attract more tourists. The objective of the present study is to investigate the impact of the new carnival street groups in South Zone in Rio de Janeiro. The study was based on quality data - two focus group ¿ one of them is a young person who lived in South Zone and the other with young person who lived in North Zone. Both groups has experience which street carnival. The focus groups agree with the idea of the South Zone street carnival is happiness, used of different fantasy, security and freedom, but disagree about the choice of many groups and the responsibility of organization. Both groups said the main problem is de size of groups and in the future this group limits the popular participation.

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The social responsibility is being very considered by the organizations and it has been exercising important impact in your strategies. More companies are confronting if with the obligation of incorporating, spontaneously or for pressure of groups and segments, the social responsibility to your profit objectives. Although some defend that the responsibility of the private companies in the public area is limited to the payment of taxes and the execution of the laws, they increase the arguments that your role cannot be restricted to that field, even for a subject of survival of the own companies. It is believed that the consumers passed to value behaviors in that sense and to prefer products of identified companies as ethics and socially responsible. Besides, it is believed that with that performance socially concemed, the company develops values and practices with positive effects on your productive chain and your collaborators, generating better results. The present study had for objective to verify the social actions practiced by O Boticário they are noticed by your consuming public to the point of to take them the purchase decision. The mischievous field research to effect allowed to conclude that such actions are not noticed by your consumers and, therefore, it doesn't motivate them the purchase of the products of the company

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O mundo está diante do desafio de reduzir as emissões de gases do efeito estufa (GEEs) e encontrar fontes renováveis de energia, na busca da segurança energética. Os biocombustíveis são uma alternativa viável e, nesse sentido, o Brasil deu um exemplo para mundo ao criar o Proálcool em 1975, que foi um programa bem sucedido de substituição da gasolina pelo etanol produzido a partir da cana-de-açúcar. Essa iniciativa contou com a participação do Governo Brasileiro no incentivo e na regulamentação do setor sucroenergético. A partir da sua liberalização em 1999, a indústria canavieira passou por uma importante reestruturação. Este estudo teve como objetivo descrever esse movimento e analisar suas possíveis consequências para o setor. Para isso, foi realizada uma pesquisa sobre a reestruturação da indústria canavieira, entre 1999 e 2011, dando ênfase aos dois ciclos de operações de Fusões & Aquisições ocorridos nesse período. Como principais resultados têm-se a consolidação dos maiores grupos de usinas da Região Centro Sul, que aumentaram a sua participação na moagem de cana e ampliaram suas estruturas produtivas por meio da aquisição de usinas concorrentes e da construção de greenfields. Além disso, foi possível observar o rápido crescimento da participação do capital estrangeiro, juntamente com a entrada de grupos de outros setores industriais. A reestruturação terá consequências positivas para o Brasil, principalmente pela profissionalização do setor sucroenergético e pela capacidade de retomar o ritmo de crescimento da produção de cana-de-açúcar, que foi interrompido pela crise financeira mundial de 2008. Para isso, será necessário investir na ampliação dos canaviais e também na construção de novas usinas.