A development and integration framework for optimisation-based enterprise solutions

The operations research literature includes some papers describing collaborative work between researchers and industry. However, not much literature exists that outlines methodologies to guide the development of a decision support module and its integration into an existing information management system. Here we describe a framework to aid the collaborative development of an optimisation solution by researchers and information system developers. The proposed framework also helps in the effective integration of the information management system and the decision support module. The framework is divided into three main components: a data model, a data extractor and validator, and a solution visualisation and auxiliary platform. We also describe our experience and positive results from applying the proposed development and integration framework to a project involving the development on an optimisation-based solution for workforce scheduling and optimisation problems. We hope that this contribution would be particularly useful for less experienced researchers and practitioners who embark on a collaborative development of a decision support module based on optimisation techniques

A development and integration framework for optimisation-based enterprise solutions

The operations research literature includes some papers describing collaborative work between researchers and industry. However, not much literature exists that outlines methodologies to guide the development of a decision support module and its integration into an existing information management system. Here we describe a framework to aid the collaborative development of an optimisation solution by researchers and information system developers. The proposed framework also helps in the effective integration of the information management system and the decision support module. The framework is divided into three main components: a data model, a data extractor and validator, and a solution visualisation and auxiliary platform. We also describe our experience and positive results from applying the proposed development and integration framework to a project involving the development on an optimisation-based solution for workforce scheduling and optimisation problems. We hope that this contribution would be particularly useful for less experienced researchers and practitioners who embark on a collaborative development of a decision support module based on optimisation techniques

Relações de gênero e diversidade sexual na educação do campo : a experiência da Escola Vinte e Cinco de Maio em Fraiburgo - Santa Catarina

Orientadora: Prof.ª. Drª. Sonia Fátima SchwendlerDissertação (mestrado) - Universidade Federal do Paraná, Setor de Educação, Programa de Pós-Graduação em Educação. Defesa : Curitiba, 05/04/2022Inclui referências: p. 115-121Resumo: O trabalho aqui disposto busca compreender como a escola do campo trabalha as questões de gênero e diversidade sexual na sua prática pedagógica no ensino médio técnico integrado, tendo como referência a experiência da Escola Vinte e Cinco de Maio de Fraiburgo, Santa Catarina. De forma específica objetiva: (1) Identificar as problemáticas de gênero e diversidade sexual no cotidiano pedagógico da escola, na perspectiva das/os educandas/educandos e educadoras/educadores; (2) Analisar em que situações se manifestam as problemáticas de gênero e diversidade sexual no espaço escolar, identificando avanços, limites, contradições e retrocessos; (3) Verificar na formulação do projeto da Educação do Campo como aparecem a questão de gênero e diversidade sexual; (4) Verificar se e como a investida do Movimento Escola Sem Partido para a exclusão da temática gênero e diversidade sexual do currículo escolar tem influenciado a prática pedagógica dos professores da escola. A pesquisa foi feita por meio da observação participante, a partir de entrevistas com professoras/es, gestores e os/as estudantes da escola, da análise de documentos oficiais, e da revisão de literatura da temática no contexto da educação escolar e, em específico, da Educação do Campo. O estudo apontou fragilidades, mas também avanços, a exemplo dos documentos da rede estadual de educação que subsidiam o debate nas escolas. Além das demandas que se apresentam, identificou-se a "quase" ausência de debates da temática na Educação do Campo em documentos que estão em circulação, produzidos por movimentos sociais, bem como no espaço acadêmico. Mas, por outro lado, pode-se identificar uma área emergente, que vem se constituindo a partir de pesquisas acadêmicas que têm discutido e articulado educação do campo, relações de gênero e diversidade sexual.Abstract: The work presented here seeks to understand how the countryside school works the issues of gender and sexual diversity in its pedagogical practice in integrated technical high school, having as reference the experience of the Vinte e Cinco de Maio School in Fraiburgo, Santa Catarina. Specifically, it aims: (1) Identify the problems of gender and sexual diversity in the pedagogical daily life of the school, from the perspective of students and educators/ educators; (2) Analyze in which situations gender and sexual diversity issues are manifested in the school space, identifying advances, limits, contradictions and setbacks; (3) Verify in the formulation of the Countryside Education project how the issue of gender and sexual diversity appear; (4) Verify whether and how the onslaught of the School Without Party Movement to exclude gender and sexual diversity from the school curriculum has influenced the pedagogical practice of school teachers. The research was based on participant observation, interviews with teachers, managers and students of the school, the analysis of official documents, and the literature review of the theme in the context of school education and, in particular, of the Countryside Education. The study pointed out weaknesses, but also advances, such as the documents from the state education network that subsidizes the debate at the schools. In addition to the demands presented, it was identified the "almost" absence of debates in the Countryside Education in documents that are in circulation, produced by social movements, as well as in the academic production. However, on the other hand, it can be seen an emerging area, as a result of academic research that have discussed and articulated countryside education, gender relations and sexual diversity

The role of the disorder range and electronic energy in the graphene nanoribbons perfect transmission

Numerical calculations based on the recursive Green's functions method in the tight-binding approximation are performed to calculate the dimensionless conductance $g$ in disordered graphene nanoribbons with Gaussian scatterers. The influence of the transition from short- to long-ranged disorder on $g$ is studied as well as its effects on the formation of a perfectly conducting channel. We also investigate the dependence of electronic energy on the perfectly conducting channel. We propose and calculate a backscattering estimative in order to establish the connection between the perfectly conducting channel (with $g=1$) and the amount of intervalley scattering.Comment: 7 pages, 9 figures. To be published on Phys. Rev.

Analysis of objectives relationships in multiobjective problems using trade-off region maps

Understanding the relationships between objectives in many-objective optimisation problems is desirable in order to develop more effective algorithms. We propose a techniquefor the analysis and visualisation of complex relationships between many (three or more) objectives. This technique looks at conflicting, harmonious and independent objectives relationships from different perspectives. To do that, it uses correlation, trade-off regions maps and scatter-plots in a four step approach. We apply the proposed technique to a set of instances of the well-known multiobjective multidimensional knapsack problem. The experimental results show that with the proposed technique we can identify local and complex relationships between objectives, trade-offs not derived from pairwise relationships, gaps in the fitness landscape, and regions of interest. Such information can be used to tailor the development of algorithms

Food Insecurity and the Behavioral and Intellectual Development of Children: A Review of the Evidence

Background: Given that an alarming 1 in 5 children in the USA are at risk of hunger (1 in 3 among black and Latino children), and that 3.9 million households with children are food insecure, it is crucial to understand how household food insecurity (HFI) affects the present and future well-being of our children. Purpose: The objectives of this review article are to: (i) examine the association between HFI and child intellectual, behavioral and psycho-emotional development, controlling for socio-economic indicators; (ii) review the hypothesis that HFI is indeed a mediator of the relationship between poverty and poor child development outcomes; (iii) examine if the potential impact of HFI on caregivers’ mental health well-being mediates the relationship between HFI and child development outcomes. Methods: Pubmed search using the key words “food insecurity children.” For articles to be included they had to: (i) be based on studies measuring HFI using an experience-based scale, (ii) be peer reviewed, and (iii) include child intellectual, behavioral and/or socio-emotional development outcomes. Studies were also selected based on backward and forward Pubmed searches, and from the authors’ files. After reviewing the abstracts based on inclusion criteria a total of 26 studies were selected. Results: HFI represents not only a biological but also a psycho-emotional and developmental challenge to children exposed to it. Children exposed to HFI are more likely to internalize or externalize problems, as compared to children not exposed to HFI. This in turn is likely to translate into poor academic/cognitive performance and intellectual achievement later on in life. A pathway through which HFI may affect child development is possibly mediated by caregivers’ mental health status, especially parental stress and depression. Thus, HFI is likely to foster dysfunctional family environments. Conclusion: Findings indicate that food insecure households may require continued food assistance and psycho-emotional support until they transition to a “stable” food secure situation. This approach will require a much better integration of social policies and access to programs offering food assistance and mental health services to those in need. Findings also fully justify increased access of vulnerable children to programs that promote early in life improved nutrition as well as early psycho-social and cognitive stimulation opportunities

A Hidden Complication of Pigtail Catheter Insertion

Pigtail catheters have emerged as an effective and less morbid alternative to traditional chest tubes for evacuation of pleural air. Rare complications in the literature have been reported. We report a case of a 92-year-old male who presented with dyspnea and shock, noted to have a pneumothorax requiring tube thoracostomy. Computed tomography demonstrated pigtail within the lung parenchyma. We discuss the implications of this occurrence