Ecole Supérieure de Gestion

Let $\{P_{n}\}_{n\ge 0}$ be the sequence of Pell numbers defined by $P_0=0$, $P_1 =1$ and $P_{n+2}= 2P_{n+1} +P_n$ for all $n\ge 0$ and let $\{Q_{n}\}_{n\ge 0}$ be its companion sequence, the Pell–Lucas numbers defined by $Q_0=Q_1 =2$ and $Q_{n+2}= 2Q_{n+1} +Q_n$ for all $n\ge 0$. In this paper, we find all Pell and Pell–Lucas numbers which can be written as difference of two repdigits. It is shown that the largest Pell and Pell–Lucas numbers which can be written as difference of two repdigits are

Microevolutionary processes shape adaptive responses to heterogeneous environments, where these effects vary both among and within species. However, the degree to which signatures of adaptation to environmental drivers can be detected based on spatial scale and genomic marker remains largely unknown. We studied signatures of local adaptation across different spatial extents, investigating complementary types of genomic variants–single nucleotide polymorphisms (SNPs) and polymorphic transposable elements (TEs)–in populations of the alpine model plant species Arabis alpina. We coupled high-resolution (0.5m) environmental factors, derived from remote sensing digital elevation models, with whole-genome sequenced data of 304 individuals across four populations. We demonstrate that responses of A. alpina to similar amounts of abiotic variation are largely governed by local evolutionary processes and find minimally overlapping signatures of local adaptation between SNPs and polymorphic TEs. Notably, functional annotations of high-impact genomic variants revealed several defence-related genes associated with the abiotic factors studied, which could indicate indirect selective pressure of biotic agents. Our results highlight the importance of considering different spatial extents and types of genomic polymorphisms when searching for signatures of adaptation to environmental variation. Such insights provide key information on microevolutionary processes and could guide management decisions to mitigate negative impacts of climate change on alpine plant populations.

Em um esforço para evoluir iniciativas ligadas à gestão da informação em ciência e melhorar os procedimentos de extração e a interoperabilidade com as fontes de dados curriculares, em novembro de 2021 o Conselho Nacional de Desenvolvimento Científico e Tecnológico – CNPq e a Fundação para a Ciência e a Tecnologia – FCT de Portugal estabeleceram um acordo para o programa de cooperação científica, tecnológica e de inovação focado no desenvolvimento conjunto de atividades de pesquisa e outras iniciativas em temas de comum interesse. Dentre as intenções do acordo de cooperação internacional (ACI), previa-se o intercâmbio de pesquisadores(as) nos temas de gestão de dados científicos e repositórios de dados em pesquisas correntes. Apresenta-se nesse relato técnico a proposta de intervenção denominada de framework CV-PTBR, que norteará o trabalho de assimilação das tecnologias e seus elementos para o uso nos projetos de aprimoramento das rotinas de importação de dados na Plataforma Lattes e a evolução das integrações de dados na Plataforma CIÊNCVIAVITAE de Portugal. O Framework objetiva estabelecer um protocolo de trabalho conjunto baseado em diretrizes entre as equipes do CNPq e FCT. No caso do Lattes, a possibilidade de aprimoramento com a adoção do Framework dar-se-á pela apresentação de protótipo de interfaces e a proposição dos cenários, em especial na melhoria das rotinas de dados e uso de padronização internacional para sua manutenção e atualização.

The implementation of people monitoring system is an evolving research theme. This paper introduces an elderly monitoring system that recognizes human posture from overlapping cameras for people fall detection in a smart home environment. In these environments, the zone of movement is limited. Our approach used this characteristic to recognize human posture fastly by proposing a region-wise modeling approach. It classifies person’s pose in four groups: standing, crouching, sitting and lying on the floor. These postures are obtained by calculating an estimation of the human bounding volume. This volume is estimated by obtaining the height of the person and its surface that is in contact with the ground according to the foreground information of each camera. Using them, we distinguish each postures and differentiate lying on floor posture, which can be considered as the falling posture from other postures. The global multiview information of the scene is obtaining by using homographic projection We test our proposed algorithm on multiple cameras based fall detection public dataset and the results prove the efficiency of our method.

Résumé Les auteurs examinent la relation entre les gains, le capital humain et les tâches. Ils reprennent le modèle théorique d'Autor et Handel (2013), tout en élargissant l'analyse empirique à 21 pays, grâce aux données de l'enquête de l'OCDE sur les compétences des adultes (PIAAC). Celles‐ci permettent en outre de caractériser plus précisément le capital humain des travailleurs, en fournissant une mesure directe des compétences cognitives. L'analyse empirique confirme l'influence du contenu en tâches de l'emploi sur les écarts de salaire, à la fois entre les catégories professionnelles et en leur sein. Les prédictions du modèle se vérifient dans la grande majorité des pays.

Neste artigo, de natureza tecnológica, teve-se como objetivo descrever o processo de desenvolvimento de uma ferramenta para identificação de padrões culturais para a inovação. A demanda teve origem em um projeto de cooperação técnico-científica, firmado entre o Instituto Ewaldo Lodi de Santa Catarina (IEL-SC) e a Universidade do Estado de Santa Catarina (UDESC). Coube a esta a meta de realizar a pesquisa e o desenvolvimento para a concepção de ferramentas a serem incorporadas na Metodologia Integrada de Gestão da Inovação (Nugin), para a criação de ambientes de inovação nas empresas. Para isso, buscou-se primeiramente caracterizar o estado da arte e identificar as lacunas da metodologia Nugin. Após, realizou-se a busca por ferramentas que dessem apoio ao gap encontrado. Por fim, procedeu-se a estruturação e construção do conteúdo da metodologia para identificar os padrões culturais favoráveis à criação de ambientes de inovação, por meio da definição das dimensões de análise, assertivas e escala, da validação semântica e do design e desenvolvimento do artefato computacional. Palavras-chave: Ambiente de inovação. Padrões culturais de inovação. Cooperação técnico-científica. NAGI. NUGIN. Abstract This technological article aimed to describe the process of developing a tool for identifying cultural standards for innovation. The demand was originated on a project of technical and scientific cooperation, signed between Instituto Ewaldo Lodi de Santa Catarina (IEL-SC), and Universidade do Estado de Santa Catarina (UDESC). It was left to UDESC the goal to perform the research and the development for the design of tools to be incorporated into the Methodology Innovation Management Integrated (Nugin), for the creation of innovation environments in enterprises. To do so, it first sought to characterize the state of art and identify the gaps in Nugin methodology. After, there was the search for tools that supported the gap found. Finally, we proceeded to the structure and construction of the content of the methodology to identify cultural patterns favorable to the creation of innovation environments, by defining the dimensions of analysis, assertive and scale, the semantic validation and design and development of computational device. Keywords: Innovation environment. Cultural patterns of innovation. Technical and scientific cooperation. NAGI. Nugin.

Ubiquitous in commercials and tourism brochures, the term authenticity is used in a wide array of meanings ranging from objective to subjective. In an attempt to overcome this deficiency, this article aims to identify how tourists define the authenticity of a travel experience. For this, it engages in a semantic analysis of reviews posted in TripAdvisor by travelers to Marrakech and its surroundings. The platform was chosen among others due to its currently predominant role in assisting tourists and helping them share their experiences. A total of 361 reviews were collected from 160 tourism establishments—40 each of four types of establishments, being the riad guest house, hotel, restaurant, and rural guest house—selected from the ranking of the best tourism establishments proposed by TripAdvisor. The three dimensions of authenticity found in the literature—originality, singularity and identity—were then associated with the four types of tourist accommodations. The “originality” dimension proved to be strongly associated with riad guest houses, the “singularity” dimension with hotels and restaurants, and the “identity” dimension with rural guest houses.

http://dx.doi.org/10.5007/2177-5230.2016v31n62p367Este artigo apresenta o Setor Imobiliário de Florianópolis sob a perspectiva da Nova Sociologia Econômica (NSE), utilizando as inserções sociais como categoria de análise socioeconômica. Os resultados são apresentados por fase: i) Pesquisa Bibliográfica sobre a NSE, mapeamento e análise das inserções sociais em Florianópolis; ii) Refinamento das inserções sociais, mapeamento e análise no Distrito-Sede de Florianópolis; iii) Aplicação de questionários e análise econométrica. Entre as principais considerações observa-se uma relação estreita entre as inserções sociais e o crescimento do setor imobiliário, assim como, com a valorização de áreas da cidade. A pesquisa aponta a NSE como um marco teórico apropriado para avaliar a complexidade das relações sociais no setor imobiliário e as inserções sociais como subsídio ao planejamento e a gestão urbana.

http://dx.doi.org/10.5007/2175-8077.2015v17n43p37 Este artigo insere-se num estudo sobre a interação Universidade-Empresa (U-E) em Santa Catarina para o desenvolvimento inovativo e visa especificamente caracterizar o processo de interação U-E a partir das particularidades de quatro universidades: UFSC, FURB, UDESC e UNIVALI. Para tanto foi realizada uma pesquisa descritivo-explicativa de abordagem qualitativa. Foram utilizados como referência dados secundários coletados no Diretório dos Grupos de Pesquisa do Conselho Nacional de Desenvolvimento Científico e Tecnológico (DGP-CNPq), por meio dos censos realizados no período de 2000 a 2010. Posteriormente foram realizadas 38 entrevistas em profundidade nas respectivas universidades objetos de estudo. O tratamento dos dados foi realizado por meio do software de análise de dados qualitativos Atlas/ti e apoiou-se na análise de conteúdo categorial. Os resultados apontam dentre outros aspectos para a importância do tempo de relacionamento com a empresa para a manutenção e sustentabilidade da parceria, aspecto que está diretamente relacionado ao tempo de existência dos grupos de pesquisa e que por sua vez se reflete nos formatos de interação.

The production of public goods and services is a process that can be organized in different ways in society, and it is necessary to determine ways that satisfy not only individual but also collective interests. The co-production is a strategy in which the definition of goods and services to be produced by the Public Administration requires a democratic and participatory process involving citizens. A historical review of the concept of co-production is made in order to define their characteristics and its operation, highlighting its procedural character. In this sense, the organization of citizens' efforts must obey moral rules, and this article has as its objective to search for an ethical foundation to coproduction. As this foundation, Habermas's discursive ethics is discussed as a way to guide co-production procedures. The democratic character of discursive ethics and co-production is discussed to demonstrate the congruence between the two theories. The article, written in the form of a theoretical essay, concludes that, although there are aspects of Habermas' theory that are not entirely adequate to the concept of co-production, the possibilities for its application are high, justifying further discussions on the subject.

The concepts of Reverse Logistics and Eco-design are discussed in this paper, suggesting that these applications are often treated differently, thus not being able to achieve a higher performance in relation to environmental sustainability. The reason is most reverse logistics applications have a repairer action, since their waste generation is not planned along with product design. The proposal shows how the two concepts can work together, describing the time of each application.Unfolding the two concepts into reverse channels concerning logistics and life cycle analysis of the product as per eco-design, an application model has been developed, promoting integration between the two practices, so that the reverse supply chain is planned along with the product.The result is the development of a model for implementing reverse logistics integrating eco-design, thus optimizing the reverse flow of waste.

Water resource system planners make decisions that guide water management policy. The fundamental tools for assessing management and infrastructure strategies are combined hydro-economic models of river basins (RBHE models). These models have improved the economic efficiency of water use in situations of competition for scarce water resources. In RBHE models, a groundwater model is coupled with surface water models of the various water resources. Today, the groundwater models used in an RBHE model can be of two types: cell models or numerical models. Cell models are easy to use, but they are too simple to realistically describe the geology and hydrology of the area under investigation. Numerical models, in contrast, are closer to the physical behavior of the aquifer. However, the vast quantity of data to be analyzed makes them impractical for many management scenarios. Moreover, the calibrations of these high-resolution models are generally difficult and sensitive to the variation of parameters, especially when boundary conditions are dynamic. This is the case when dynamic river data or dynamic surface lake data are present. In this work, a compartmental cell model is built on the hydrogeology of the aquifer. In this approach, the hydrogeology of the aquifer and the dynamic boundary conditions are treated with separate models. A general mathematical formulation is presented where the calibration stage, the validation stage, and the prediction stage are formulated as a series of sub-model calibrations and solved using a general least squares routine. With this approach, it becomes possible to treat both the water level and the pumping rate in each cell as variables to be predicted. In most of the models, the pumping rates are known and the goals of the computation are to estimate the groundwater level. However, when for political or technical reasons access to some of the wells is difficult, the pumping rates are only partially known. Then, both groundwater levels and pumping rates are variables to be predicted by the groundwater model. A computer program was developed using MATLAB, with a Visual Basic graphical user interface using COM technology to access the advanced mathematical libraries. The approach was implemented with a real case study of the Yarkon–Taninim aquifer in Israel. The results indicate that the method is more stable than the classical approach.

The aim of this article is to analyze Private Social Investment (PSI) in Brazil, based on an exploratory research, to discuss possibilities and limitations of this practice as a mean to promote civic participation. The article primarily defines the concept of PSI and presents the research problem. Then, it analyzes PSI as a strategy to promote citizen engagement in the public sphere, using the concepts of ‘collective action’, ‘coproduction of public goods’ and how they relate to each other. Based on these key concepts, a framework of analysis is built composed of variables that are used to examine the practice of PSI, in Brazil. Sources used in this article are nationwide surveys undertaken in recent years. Secondary data is discussed in comparison to the international ones. Data analysis allows some final considerations that are presented at the end of the article.

Purpose – In light of the core role of product involvement as a variable in consumer behavior, the current study seeks to examine which variables influence product involvement among young people. This paper aims to explore five variables: age, subjective product knowledge, influence of parents, influence of peers, and product category. Design/methodology/approach – The research was founded on a quantitative field study, whose sample was comprised of 252 young people, ages 4‐15. Findings – The findings among the entire sample imply that young people's product involvement is explained by all of the variables that were examined. Interesting findings came to light for each one of the age groups: Young children's product‐involvement level was influenced by parents and peers. The product‐involvement level for children was influenced by peers and product category. Adolescents' product‐involvement relies on subjective product knowledge and product category. Originality/value – These findings expand the existing knowledge about young consumers' behavior patterns and show that the existing models provide a partial picture. In addition, the product‐involvement variable must be seen as a basis for market segmentation of the younger populations. The recommendation is to carefully create segments that examine the different product‐involvement levels among each age group.

Daily rhythms of arousal explain a broad range of variations in biological, behavioral, and cognitive patterns among humans. In this paper, we consider the effects of individual variations in optimal time-of-day on the stability of consumer responses. Specifically, we explore the effects of gathering questionnaire responses at times of day that match (versus mismatch) consumers' temporal preferences on data reliability. Two studies were conducted using two different scales. Our findings confirm a synchrony effect between participants' testing time and test–retest reliability results. Specifically, we found greater (lower) stability in test–retest scores for surveys administered during times-of-day matching (mismatching) consumers' temporal preferences. We discuss theoretical and practical implications and opportunities for future research.

The purpose of this study is to determine whether customers' diurnal preferences, tested at different times of the day, affect their responses and behavior. Three studies explore whether synchrony between the peak circadian arousal period and the time of participant testing influenced participants' temporal perception and behavior. Overall, the results imply a robust synchrony and time-of-day effects on the dependent variables. The authors discuss the theoretical significance of their findings and the managerial implications for consumer research and practice.

Cet article s’intéresse à l’influence des caractéristiques des dirigeants de 135 sociétés françaises cotées sur la performance économique à long terme. Plus précisément, il cherche à vérifier si les élites, c’est-à-dire les dirigeants issus de grandes écoles d’ingénieur (notamment de l'Ecole Polytechnique) ou de commerce (notamment d'HEC), gèrent mieux les entreprises que les autres dirigeants. Nos résultats mettent en évidence que la performance, mesurée sur une période de 10 ans (1999-2008), ne diffère pas significativement pour les entreprises dirigées par les élites comparativement à celle enregistrée par les autres dirigeants, mais que des différences existent selon les profils des dirigeants issus des grandes écoles. En particulier, il semble que les rentabilités économiques moyennes soient plus faibles à long terme pour les entreprises dont les dirigeants sont issus de grandes écoles d’ingénieur. En revanche, le risque économique semble significativement moindre pour les entreprises ayant à leur tête des dirigeants issus de grandes écoles de commerce.

The methods England took to restructure its public debt during the British Financial Revolution consisted of improving liquidity. Accordingly, the State sought to reestablish its solvability by basing its debt on tax revenues as well as to homogenize it, reduce its cost and improve the operation of the primary and secondary markets of the debt. Finally, it favored the creation of new institutions, i.e., the establishment of companies with stocks whose commercial and/or financial activities would be connected to its debt. The Bank of England and the South Sea Company, created in July 1694 and September 1711 respectively, are two prime examples of this. In this article, we highlight the role of these two financial institutions in the process of the creation of liquidity through the restructuring of the national debt. We establish the fundamental differences between the financial experiments led by these two establishments. Indeed, if the project of converting the titles of national debt into shares of the South Sea Company led to the creation of the South Sea Bubble, the circulation of short-term government bonds (exchequer bonds) by the Bank of England after 1907 constituted an unrivaled financial success. Finally, we discuss the diverging commentaries of Hume (1752), Steuart (1767) and Smith (1776) on these financial experiments.