13,462 research outputs found

    Managing relational capital for the sustainability of the energy sector in the social media

    Get PDF
    Various management models have been proposed for intangible business assets in this new digital era. However, these models do not consider the relationships between intangible assets in business management, or their effect. This work has two main objectives: first, to show the effect of intangi-ble assets as expressed in digital media related to energy brands; second, to demonstrate the rela-tionships between the emotions, experiences and attitudes of the audiences. To do so, a novel model of intangibles is proposed and applied to the energy sector using IBEX 35 data. In this sce-nario, we determine that users' experiences extracted from digital environments have significant relationships with one of the most important intangibles in the energy business, namely emotion.V√°rios modelos de gest√£o foram propostos para ativos de neg√≥cios intang√≠veis nesta nova era digital. No entanto, esses modelos n√£o consideram as rela√ß√Ķes entre ativos intang√≠veis na gest√£o ou os seus efeitos. Este estudo tem dois objetivos principais: primeiro, mostrar o efeito dos ativos intang√≠veis expressos nos meios digitais relacionados com as marcas associadas ao setor econ√≥mico da energia; segundo, demonstrar as rela√ß√Ķes entre as emo√ß√Ķes, experi√™ncias e atitudes do p√ļblico. Para esse efeito, √© proposto um novo modelo de gest√£o de intang√≠veis aplicado ao setor de energia utilizando dados do IBEX 35. Nesse cen√°rio, conclu√≠mos que as experi√™ncias dos utilizadores extra√≠das de ambientes digitais t√™m relacionamentos significativos com um dos intang√≠veis mais importantes no neg√≥cio de energia, ou seja, a emo√ß√£o.info:eu-repo/semantics/publishedVersio

    Indirect ELISA for Detection of Fascioliasis IgG Antibodies in Human Sera

    Full text link
    Currently, coprological examination based on egg detection in stool samples is used as the most ideal standard for the diagnosis of human fascioliasis. However, this method has been proven not to be adequate when being employed in the acute phase of the disease, and presents a poor sensitivity during the chronic phase. Serodiagnosis has become an excellent alternative to coprological examination in efforts to combat the effects of fascioliasis on human and animal health. Human fascioliasis is usually recognized as an infection of the bile ducts and liver caused by Fasciola hepatica, known to affect over 2 million humans. In this research, Indirect Enzyme-linked Immunosorbent Assay (ELISA) was performed to discern between positive and negative IgG antibody titers in sera in collaboration with a lab in Peru. A batch of approximately 325 samples of human sera of endemic Fasciola hepatica from regions in Peru was gathered and sent to the laboratory in order to be examined with the method explained in the following paragraph. In the search for a test for the diagnosis of fascioliasis on humans, indirect ELISA started to be employed in order to determine positive and negative values. In the indirect ELISA test, the sample antibody is sandwiched between the antigen coated on the plate and an enzyme-labeled, anti-species globulin conjugate. The addition of an enzyme substrate-chromogen reagent causes color to develop. This color is directly proportional to the amount of bound sample antibody. The more antibody present in the sample, the stronger the color development in the test wells. Positive samples presented a very strong optical density value, while negative samples were clear or low optical density value, measured with the aid of a spectrophotometer

    Os efeitos de um plano de exercícios para o ombro na postura de voleibolistas da 1ª Divisão Nacional: fotogrametria (SAPO)

    Get PDF
    Projeto de Gradua√ß√£o apresentado √† Universidade Fernando Pessoa como parte dos requisitos para obten√ß√£o do grau de Licenciada em FisioterapiaObjetivo: Analisar quais as principais altera√ß√Ķes posturais observadas no voleibolista da 1¬™ divis√£o nacional, antes e ap√≥s um plano de exerc√≠cios para o ombro. M√©todos: Estudo experimental longitudinal com 39 participantes (22,8¬Ī5,5 anos de idade), distribu√≠dos por dois grupos: GC e GE.O GE realizou um plano de exerc√≠cios para o ombro durante 6 semanas. A postura foi avaliada por meio de an√°lise computorizada de fotografias baseada no protocolo de avalia√ß√£o SAPO vers√£o 0.68. Resultados: Inicialmente da compara√ß√£o intergrupo, conclui-se que apenas a vari√°vel AHC7 apresentava diferen√ßas estatisticamente significativas. Ap√≥s as 6 semanas, verificou-se que apenas existiam diferen√ßas estatisticamente significativas na vari√°vel AQD. Na compara√ß√£o intragrupo, ap√≥s as 6 semanas, verificou-se que no GC 5 vari√°veis (ACEIAS, AQD, AQE, AVC E AHP) e no GE 6 vari√°veis (AFMID, AQE, AVT, AVC, AHP) demonstraram diferen√ßas estatisticamente significativas. Conclus√£o: O plano de exerc√≠cios para o ombro n√£o demonstrou ser eficaz para uma melhoria da postura dos voleibolistas.Objective: Analyze the main postural changes observed in volleyball players of the 1st national division, before and after an exercise plan to the shoulder. Methods: It‚Äôs a longitudinal experimental study with 39 participants (22,8¬Ī5,5 years old), assigned to two groups: GC and GE. The GE performed an exercise plan for the shoulder for 6 weeks. The posture was evaluated through computer analysis of photographs based on the evaluation protocol SAPO version 0.68. Results: Initially, with the intergroup comparison, it‚Äôs concluded that only AHC7 variable showed significant differences. After 6 weeks, it was found that there were only statistically significant differences in AQD variable. The intragroup comparison, after 6 weeks, it was found that the GC 5 variables (ACEIAS, DQA, AQE, stroke and AHP) and the GE 6 variables (AFMID, AQE, AVT, stroke, AHP) showed statistical differences significant. Conclusion: The exercise plan for the shoulder hasn‚Äôt been shown to be effective for improving the volleyball athlete posture

    Ecoliteracia e literatura para a inf√Ęncia: quando a rela√ß√£o com o ambiente toma conta dos livros

    Get PDF
    O artigo apresenta, de forma elementar, uma conce√ß√£o de ecoliteracia, as virtualidades da literatura infantil para a promover e um breve historial de publica√ß√Ķes sobre a tem√°tica em Portugal.CIEC - Centro de Investiga√ß√£o em Estudos da Crian√ßa, UM (UI 317 da FCT

    Viajando da cidade para o campo: representa√ß√Ķes de cen√°rios urbanos e rurais em dois livros ilustrados portugueses

    Get PDF
    Research has shown that Nature is frequently found as an important element in children‚Äôs literature. Despite being depicted in a rather superfi cial and stereotypical way and touched by humanity, it is usually represented as a fun, harmonious and even idyllic component of the story. This construction of the natural world depends on the power of language to create scenarios, shaping the way Nature is perceived, merging the aesthetic, recreational and pedagogical dimensions of children‚Äôs literature. The objective of this study is to identify how these dimensions intersect and how the theme of ecoliteracy is dealt with by focusing on two main perspectives: (a) linguistic perspective: resorting to the principles of the identifi cation of frames and their interpretative repertoire; (b) literary and semiotic perspective: establishing text-picture relationships and dynamics according to the postmodern theories on picturebooks. In order to do this, the study focuses on two children‚Äôs picturebooks published in 2009, which tell stories of car journeys involving families travelling from an urban setting to a rural one. These two picturebooks represent various forms of subjective appropriation of space and promote ecoliteracy through the relationship between the child protagonists and the surrounding environment.A investiga√ß√£o mostra que a natureza √© presen√ßa frequente na literatura infantojuvenil e que √© habitualmente confi gurada como uma entidade prazerosa, harmoniosa e at√© id√≠lica, ainda que superfi cial, humanizada e estereotipada. Esta constru√ß√£o do mundo natural repousa sobre o poder da linguagem verbal para criar realidade, moldando a forma como a natureza √© percecionada, fundindo as dimens√Ķes est√©tica, l√ļdica e pedag√≥gica da literatura para crian√ßas e jovens. Este estudo objetiva identifi car as linhas de intersec√ß√£o destas dimens√Ķes, mais especifi camente a quest√£o da ecoliteracia, adotando duas perspetivas fundamentais: (a) uma perspetiva lingu√≠stica, recorrendo √† identifi ca√ß√£o de quadros conceptuais e ao report√≥rio interpretativo nos quais estes s√£o constitu√≠- dos; (b) uma perspetiva liter√°ria e semi√≥tica, estabelecendo rela√ß√Ķes e din√Ęmicas texto-imagem, segundo teoria p√≥s-modernas de abordagem do livro ilustrado (√°lbum). Para cumprir o seu objetivo, este estudo analisa dois livros (√°lbuns) para crian√ßas publicados em 2009 que apresentam narrativas de viagens de carro em fam√≠lia de √°reas urbanas para √°reas rurais. Estes dois livros representam diversas formas de apropria√ß√£o subjetiva do espa√ßo, no quadro da rela√ß√£o entre as crian√ßas e o meio na sociedade contempor√Ęnea e ambos promovem a ecoliteracia dos leitores.CIEC ‚Äď Research Centre on Child Studies, UM (FCT R&D 317

    Urban and rural landscapes in Portuguese picture story books : reification and perceptions

    Get PDF
    We have chosen to study a collection of three books published by the Metropolitan Lisbon Area with the purpose to disseminate the natural and cultural surroundings of the Portuguese capital. The selected books combine pedagogical intentionality and aesthetic dimension, recreating the adventures of a girl in natural Portuguese landscapes. The main character visits different natural scenarios and discovers all sort of new special places. With a scientific review, the books emphasize, without losing their literary quality, the environmental diversity of the area, which determinates its specificity. History, geography, geology and biology intersect with magic and wonderful and propose a different way of looking at reality. As we will seek to prove, these books represent, in an original way, various forms of personal and subjective appropriation of space, particularly concerning natural landscape, thereby stimulating a variety of readings and interpretations. Both text and images depict, in their own language and style, the relationship between children and environmentEste estudio se centra en una colecci√≥n de tres vol√ļmenes publicados por el √Ārea Metropolitana de Lisboa con el objetivo de difundir el medio natural y cultural que rodea a la capital portuguesa. Los libros seleccionados combinan intencionalidad pedag√≥gica y dimensi√≥n est√©tica a trav√©s de la narraci√≥n de las aventuras de un ni√Īo que transcurren en pleno paisaje natural. El protagonista visita diferentes escenarios naturales y descubre una gran variedad de espacios √ļnicos. Desde una cuidadosa revisi√≥n cient√≠fica, en los libros se destaca, sin perder su calidad literaria, la diversidad y riqueza ambiental de un espacio particular y √ļnico. La historia, la geograf√≠a, la geolog√≠a y la biolog√≠a se cruzan con la magia y lo maravilloso para proponer una manera diferente de observar la realidad. El estudio tratar√° de demostrar c√≥mo estos libros representan de una manera muy original, la apropiaci√≥n personal y subjetiva del espacio, en particular del paisaje natural, lo que permite una variedad de lecturas e interpretaciones. Texto e im√°genes recrean en su estilo y lenguaje espec√≠fico, la relaci√≥n del ni√Īo con el medio ambiente.CIEC - Centro de Investiga√ß√£o em Estudos da Crian√ßa, UM (UI 317 da FCT

    A Comparison of Machine-Learning Methods to Select Socioeconomic Indicators in Cultural Landscapes

    Get PDF
    Cultural landscapes are regarded to be complex socioecological systems that originated as a result of the interaction between humanity and nature across time. Cultural landscapes present complex-system properties, including nonlinear dynamics among their components. There is a close relationship between socioeconomy and landscape in cultural landscapes, so that changes in the socioeconomic dynamic have an effect on the structure and functionality of the landscape. Several numerical analyses have been carried out to study this relationship, with linear regression models being widely used. However, cultural landscapes comprise a considerable amount of elements and processes, whose interactions might not be properly captured by a linear model. In recent years, machine-learning techniques have increasingly been applied to the field of ecology to solve regression tasks. These techniques provide sound methods and algorithms for dealing with complex systems under uncertainty. The term ‚Äėmachine learning‚Äô includes a wide variety of methods to learn models from data. In this paper, we study the relationship between socioeconomy and cultural landscape (in Andalusia, Spain) at two different spatial scales aiming at comparing different regression models from a predictive-accuracy point of view, including model trees and neural or Bayesian networks

    Sexual reproduction vs. clonal propagation in the recovery of a seagrass meadow after an extreme weather event

    Get PDF
    Marine flowering plants can reproduce sexually and clonally, and the relative contribution of these two modes can be dependent on the environmental conditions. Zostera marina, a seagrass widely distributed in the northern hemisphere, can form annual and perennial meadows with different proportions of sexual versus clonal propagation depending on the environmental disturbance regime. We study the hypothesis that the contribution of sexual propagation varies during the recovery of a seagrass meadow. In this case study, we compare the proportion of sexual versus clonal propagation of a perennial Z. marina meadow before its disappearance due to winter storms and after recovery. Before disturbance, genotypic diversity was high, indicating frequent sexual reproduction events likely to create an abundant seed bank. Seedling germination allowed the population to recover after the extreme disturbance. As months passed, seedlings became rare and finally absent, giving place to adult shoots. In an advanced stage of colonization, the shoots colonized the area by vegetative growth, which lowered the genotypic diversity. Despite this reduction over time, the genotypic diversity of the new meadow is still high, demonstrating the importance of sexual reproduction in meadow recovery and persistence.info:eu-repo/semantics/publishedVersio
    • ‚Ķ
    corecore