1,721,250 research outputs found
Mathematical Modeling of the Electro-Oxidation Process
No full textThe electro-oxidation (EO) process has received much attention in recent years because it can be used as an alternative to traditional wastewater treatment methods with increased flexibility. In this chapter, details, and fundamentals of different modeling approaches, including phenomenological, Response Surface Methodology (RSM), and Artificial Neural Networks (ANNs), used for the EO process are provided. Kinetic analysis of the EO process is also reviewed. Identifying the design variables that have the most impact on the EO process and calculating the response variables are the main goals of the Design of Experiment (DoE). The most used DoE methods for EO processes are factorial design, central composite design, Box-Behnken design, Taguchi's design, and Doehlert design.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
Full text linkWe 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
Cosmetic Nanomaterials in Wastewater: Titanium Dioxide and Fullerenes
Full text linkThe rapid growth in the cosmetic industry across the world is mainly due to the application of nanoingredients in cosmetics to enhance their properties and invention of new nanomolecules. Also, the weaker regulations on the application of nanoparticles as cosmetic ingredients and no safety assessment of cosmetics before release into the market has led to uncontrolled production and usage. Unavoidable release of a considerable amount of cosmetic nanoparticles into wastewater introduces them into the environment via treated wastewater effluent and sludge. This paper briefly gives the information about behavior of cosmetic nanomaterials, mainly titanium dioxide (TiO2TiO2) and fullerenes (C60), within the wastewater-treatment plant and current research on their characterization and toxicity. Considering the current analytical methods for evaluating the behavior of these nanomaterials in the wastewater, there is still a need to advance these technologies. Furthermore, a better understanding and modeling of nanomaterials’ fate in wastewater-treatment plants is essential for effectively predicting their impacts on the receiving environment.Fil: Pulicharla, Rama. Université du Québec; CanadáFil: Zolfaghari, Mehdi. Université du Québec; CanadáFil: Brar, Satinder Kaur. Université du Québec; CanadáFil: Cledón, Maximiliano. Université du Québec; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Drogui, Patrick. Université du Québec; CanadáFil: Surampalli, R. Y.. Universidad de Nebraska - Lincoln; Estados Unido
Environmental issues of Polybrominated Diphenyl Ethers
Full text linkPolybrominated diphenyl ethers (PBDEs) are among the emerging contaminants that have been traced in almost all environmental compartments for the past 30 years. Their continued application as flame-retardant additives, persistence in nature due to fluorine groups, global atmospheric transport, and analytical challenges due to interferences and different properties of congeners indicate the urgent need of finding solutions to their use. The increasing level of PBDEs in the environment and especially human tissues is alarming due to their potential neurological effects, cancer proliferation, and thyroid hormone imbalance. Therefore, strict regulations need to be applied in all countries to control the PBDEs production consumption and disposal into the environment. Studies have shown that conventional wastewater treatment plants are unable to degrade PBDEs resulting in the transport of 60–90% of PBDEs to soil through biosolids application. On the other hand, advanced treatment processes, such as ultraviolet light, advanced oxidation, and photocatalytic degradation showed promising potential for removing PBDEs from wastewater (70–100% degradation efficiency). PBDEs can be replaced by natural flame retardants, such as nanoclay or new polymers, such as bishydroxydeoxybenzoin which have no environmental or health problems compared to PBDEs.Fil: Taheran, M.. Université du Québec a Montreal; CanadáFil: Komtchou, S.. Université du Québec a Montreal; CanadáFil: Lonappan, L.. Université du Québec a Montreal; CanadáFil: Naji, T.. Université du Québec a Montreal; CanadáFil: Brar, Satinder Kaur. Université du Québec a Montreal; CanadáFil: Cledón, Maximiliano. Univerity Institut national de la recherche scientifique; Canadá. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Drogui, Patrick. Université du Québec a Montreal; Canad
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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
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