1,720,962 research outputs found
Avaliação de um sistema de tratamento de efluentes de laboratório de análises físicoquímicas e microbiológicas
Get PDFO tratamento de efluentes líquidos é uma questão de grande importância na atualidade, já que os problemas relacionados à poluição dos recursos hídricos estão cada dia mais em foco. Laboratórios de análises físico-químicas e microbiológicas, como por exemplo o Unianálises - Laboratório de Prestação de Serviços do Universidade do Vale do Taquari Univates, são grandes geradores de efluentes perigosos e por isso também necessitam de um correto gerenciamento dos mesmos. No Unianálises, os efluentes gerados são coletados e segregados em quatro grupos, conforme classificação pré-estabelecida pelo Programa Interno de Separação de Resíduos da Univates, responsável pela coleta na Instituição. Atualmente, os efluentes são enviados para tratamento em empresa contratada, mas, afim de identificar uma maneira específica e eficaz de tratar esse tipo de efluente na própria Instituição, o presente estudo visa o tratamento dos resíduos líquidos classificados em aquoso ácido e aquoso neutro-alcalino proveniente do Unianálises. Com análises realizadas no efluente, foi possível verificar que ele apresentava características bem específicas, como grande presença de metais, principalmente mercúrio, e algumas características bem distintas entre as duas correntes de efluentes. Para o tratamento foi utilizada uma estrutura adaptada de estação de tratamento de esgoto piloto. O processo proposto consistiu em um pré-tratamento, objetivando a remoção do mercúrio e outros metais, após, as duas correntes em estudo receberam tratamento biológico através de reator anaeróbio e sistema de lodos ativados, em seguida, foi realizado o polimento final através de tanques de maturação. O tratamento se mostrou muito eficiente na remoção dos metais pesados, e, mesmo não atingindo os padrões limites para lançamento nos recursos hídricos , mostrou também boa eficiência na redução de outros parâmetros como DQO, DBO e sólidos suspensos
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Avaliação da destinação final dos resíduos sólidos de serviços de saúde veterinários em integradora de suínos
No full textA produção de proteína animal vem demostrando um grande crescimento nas últimas décadas, destacando-se o setor da suinocultura. Proporcionalmente é o aumento de consumo de medicamentos e produtos desinfetantes utilizados nesta cadeia produtiva, gerando sempre mais Resíduos Sólidos de Serviços de Saúde (RSSS) e se estes gerenciados de forma incorreta são nocivos ao meio ambiente ao final de seu ciclo de vida. Já existem legislações e resoluções que definem como estes resíduos devem ser gerenciados. Desta forma, estudou-se a atual destinação dos Resíduos Sólidos de Serviços de Saúde (RSSS), embalagens vazias de medicamentos veterinários, desinfetantes e perfurocortantes, em uma integradora de suínos do Vale do Taquari – RS. Realizou-se coleta de embalagens vazias para avaliação gravimétrica, após estes dados foram correlacionados com os relatórios de utilização de medicamentos fornecidos pela empresa. Simultaneamente aplicou-se um questionário aos integrados, buscando identificar a destinação final destes resíduos. Constatou-se que no ano de 2014 a empresa, gerou 11,45 metros cúbicos de RSSS. Grande parte destes resíduos é segregada corretamente (77,5%), o grande problema é a destinação dos mesmos, 95% dos produtores relataram enviar estes resíduos juntamente com os resíduos sólidos urbanos.The production of animal protein has shown strong growth in recent decades, especially the pig farming sector. Proportion is increasing consumption of drugs and disinfectant products used in this production chain, generating ever more waste Health Services Solid (solid wastes) and whether they managed incorrectly are harmful to the environment at the end of its life cycle. There are already laws and resolutions that define how this waste must be managed. Thus, we studied the current disposal of waste Health Services Solid (solid wastes), empty packs of veterinary drugs, disinfectants and sharps in an integrated pig Taquari Valley - RS. Held collection of empty packaging for gravimetric evaluation after these data were correlated with reports of drug use provided by the company. Simultaneously applied a questionnaire to integrated in order to identify the final destination of this waste. It was found that in 2014 the company generated 11.45 cubic meters of solid wastes. Much of this waste is properly segregated (77.5%), the big problem is the allocation of these, 95% of producers reported sending this waste with municipal waste
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
