302 research outputs found

    Certificação ISO 9000 e aprendizagem organizacional: o caso Sebrae/MS

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    The perception of the organizational members of the Sebrae/MS situated in Campo Grande, MS, about the ISO 9000 Certification implanted in 1998 and the organizational learning were the aims of this study. The authors have sought to provide a link of the certification as a stimulating factor for organizational learning. The research was ellaborated after the quantitative and qualitative types, with application of semi-structured questionnaires and personal survey, direct observations, documental analysis, obtaining access to data by means of the analysis of the statements of the interviewed people about the ISO. The profiles of the 94 direct collaborators were identified and 58 who have been in the organization since before the implantation of the certification were also questioned. The perception of the interviewed people was positive regarding the certification as a linkage factor to organizational learning in the following aspects: understandings relating to the concepts and importance of the certification; commitment of the organizational members, process of democratization of decisions and actions; continuous learning; leadership; and interpersonal relationship and with the foreign clients. It was verified that the ISO 9000 Certification together with the Sebrae/MS have propelled organizational learning and the implementation of uniform standards in the productive system of the organization. In an approach for total quality the focus on the client, partnership with the suppliers and emphasis on the preparation of the internal collaborators do persist. The enterprise does not focus exclusively on the maintenance of the standards established for the ISO Certification process, but also seeks out for new challenges.ISO certification, organizational learning, Sebrae.,

    Orchid bee fauna responds to habitat complexity on a savanna area (Cerrado) in Brazil

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    Here we investigated responses of orchid bee assemblages to habitat complexity, with the aim of assessing complexity as a useful surrogate for species diversity of this group. For the purposes of our study, we defined habitat complexity as the heterogeneity in the arrangement in physical structure of habitat (vegetation), although there is a large range of operational definitions in the literature. We test the following hypotheses: (i) There is a greater species richness and abundance of orchid bee in sites with high habitat complexity than lower habitat complexity; (ii) High habitat complexity sites have a different species composition of orchid bee than lower habitat complexity sites. In fact, orchid bee species richness was higher in high complexity areas while community composition was not affected by habitat complexity, due to the effect of dominant species. Habitat complexity, measured as a function of differences in multiple strata in forests, may be of great worth as a surrogate for the diversity of a range of arthropod groups including orchid bees

    Desempenho fotossintético e trocas gasosas de genótipos de eucalipto na fase inicial de desenvolvimento sob deficit hídrico

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    Brazil has been cultivating eucalyptus since the beginning of the 20th century and with the development of eucalyptus plantations, over the years there has been an expansion of these planted areas to other regions of the country, where strong environmental tensions can negatively impact survival and/or growth of these species. In this sense, the objective of this work was to evaluate the photosynthetic performance and gas exchange in six eucalyptus genotypes in the initial phase under water deficit. The experiment was carried out in a greenhouse at the Universidade Federal do Acre and a completely randomized design, in a 6x2 factorial scheme, was adopted, with six eucalyptus genotypes, two water regimes (irrigated and non-irrigated) and five replications. Gas exchange and chlorophyll a parameters were evaluated after 15 days, using the IRGA, model Li-6400XT (LI-COR Inc., CA, USA) with a fluorometer (model Li-6400-40) attached. Also measured were: DM, R/Pa and ABM. The data obtained by the base experiment showed significant differences between the water treatments studied. In the gas exchange and chlorophyll “a” fluorescence analyses, the RIP01 and AEC0601 genotypes stood out. As for R/Pa, the genotypes AEC0601 and LCFA030 showed better results and as for ABM, LCFA030 presented a statistically significant relationship.O Brasil cultiva o eucalipto desde o início do século XX e com o desenvolvimento da eucaliptocultura, verifica-se ao longo dos anos uma expansão dessas áreas plantadas para outras regiões do país, em que fortes tensões ambientais podem impactar negativamente a sobrevivência e/ou crescimento destas espécies. Neste sentido, o objetivo deste trabalho foi avaliar o desempenho fotossintético e as trocas gasosas em seis genótipos de eucalipto na fase inicial sob deficiência hídrica. O experimento foi realizado em casa de vegetação da Universidade Federal do Acre e o delineamento inteiramente casualizado, no esquema fatorial 6x2 (seis espécies e híbridos de eucalipto, dois regimes hídricos (irrigado e não-irrigado)), com cinco repetições. As trocas gasosas e os parâmetros de clorofila a foram avaliadas após 15 dias, utilizando-se o IRGA, modelo Li-6400XT (LI-COR Inc., CA, EUA) com um fluorômetro (modelo Li-6400-40) acoplado. Também foram mensurados: DM, R/Pa e ABM. Os dados obtidos pelo experimento base mostraram diferenças significativas entre os tratamentos hídricos estudados. Nas análises de troca gasosas e fluorescência da clorofila “a”, os genótipos RIP01 e AEC0601 destacaram-se. Quanto a R/Pa os genótipos AEC0601e LCFA030 apresentaram melhores resultados e quanto à ABM, o LCFA030 apresentou relação estatística significativa

    Numerical study of apple cooling in tandem arrangement

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    The conjugated cooling of apples in tandem arrangements on trays was studied in this work by numerical simulation using a CFD code. The governing equations were discretized and solved using the finite volume method on unstructured triangular meshes; and a coupling scheme for the fluid and solid heat transfer problems was proposed. The computational model was validated using two test cases in which local and average Nusselt numbers are reported in the literature. The local Nusselt number for each apple was obtained during one hour of air cooling as a function of the Reynolds number. Nusselt number and temperature distribution were found to vary in the apples due to the conjugate behavior of the problem. The conjugate approach showed itself to be a powerful tool for optimizing the convective heat transfer correlations reported in the literature

    Species list of ground-dwelling ants (Hymenoptera:Formicidae) in the nhecolândia, pantanal, mato grosso do sul, brazil

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    This study provides a list of the ground-dwelling ant species in Nhecolândia, Pantanal, Mato Grosso Sul, Brazil. The Pantanal is the largest tropical wetland in the world and is currently under strong anthropic pressure. Ground-dwelling ants were collected in three sites: (1) a forest regeneration area; (2) a pasture area; and (3) an area of secondary native vegetation. In each site, 120 samples were collected using pitfall traps in the dry and rainy seasons of 2016. Additional samplings were performed with Winkler extractors (30 leaf-litter samples) and manually, also in dry and rainy seasons of 2016. In total, we collected 172 species, which, summed with the additional records from literature, raise the number of ant species recorded in Nhecolândia to 184 in 42 genera and nine subfamilies. Eleven species were recorded for the first time in the state of Mato Grosso do Sul. Also, the survey adds two new species records to Brazil. Besides contributing to the inventory of the ant species present in the Pantanal biome, the present study provides an important resource for future conservation plans for this threatened ecoregion

    miRTil: An extensive repository for Nile Tilapia microRNA next generation sequencing data

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    Nile tilapia is the third most cultivated fish worldwide and a novel model species for evolutionary studies. Aiming to improve productivity and contribute to the selection of traits of economic impact, biotechnological approaches have been intensively applied to species enhancement. In this sense, recent studies have focused on the multiple roles played by microRNAs (miRNAs) in the post-transcriptional regulation of protein-coding genes involved in the emergence of phenotypes with relevance for aquaculture. However, there is still a growing demand for a reference resource dedicated to integrating Nile Tilapia miRNA information, obtained from both experimental and in silico approaches, and facilitating the analysis and interpretation of RNA sequencing data. Here, we present an open repository dedicated to Nile Tilapia miRNAs: the "miRTil database". The database stores data on 734 mature miRNAs identified in 11 distinct tissues and five key developmental stages. The database provides detailed information about miRNA structure, genomic context, predicted targets, expression profiles, and relative 5p/3p arm usage. Additionally, miRTil also includes a comprehensive pre-computed miRNA-target interaction network containing 4936 targets and 19,580 interactions

    Growth and physiological responses of young plants of Dendrocalamus asper (Poaceae: Bambusoideae) under water stress / Crescimento e respostas fisiológicas de plantas jovens de Dendrocalamus asper (Poaceae: Bambusoideae) submetidas a estresse hídrico

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    Understanding how water stress impacts the growth and physiology of young bamboo plants is important to define management strategies and successful field establishment of the species. In this study, young plants of Dendrocalamus asper were evaluated to determine the effects of water availability in the initial phase of growth and the physiological behavior of the species under these conditions. Four water deficit conditions (0%, 25%, 50% and 100% of field capacity) were applied in a completely randomized design. The plants were grown in pots under a tunnel-type greenhouse environment. At 7 and 30 days of imposition of treatments, growth characteristics and gas exchange were evaluated, and at 30 days, Chl a fluorescence, pigment concentration and dry mass were analyzed. Water stress affected the growth and gas exchange of young D. asper plants. Under lower water availability (25%), the plants had a significant reduction in the dry mass of leaves and stems at 30 days and, interestingly, a greater number of shoots was observed. Although photosynthetic efficiency did not differ statistically, D. asper plants have reduced stomatal conductance (gs) and transpiration (E) under higher water restriction (50% and 25%), and higher PN (net photosynthesis) under 50% of the field capacity. The behavior observed in young plants of D. asper shows tolerance to the level and period of imposed water stress. In addition, shoot emission seems to be the main survival strategy when cultivated under 25% of water availability. This study provides an initial analysis of the impact of water deficit on clonal plantlets of Dendrocalamus asper, and further research is needed to identify the physiological and biochemical mechanisms of this species under greater stress period
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