1,720,956 research outputs found
Occupational exposure to hydrogen sulphide in the oil industry
No full textIntroduction: The study analysed hydrogen sulphide (H₂S) exposure in the hydrocarbon industry of the San Jorge Gulf Basin, one of the most relevant regions for oil and gas production in Argentina. This area, located between Chubut and Santa Cruz, presented demanding working conditions and high risks, especially due to the presence of toxic gases. The research sought to assess the level of exposure to H₂S and propose actions to protect the health of operational personnel.Development: Different work activities were identified, such as welding, maintenance, civil works and field operations, where personnel were in direct contact with possible H₂S emissions. Companies such as YPF, PAE and CAPSA implemented safety measures such as the use of gas detectors, personal protective equipment (PPE) and work permits. However, a lack of documented and specific procedures was detected, which increased operational risk. Through field measurements, regulatory analysis and recognition of critical tasks, it was observed that workers operated in hostile environments and with constant exposure to gas, especially in confined spaces, hot work and supervisory tasks.Conclusions: The research made it possible to determine the degree of occupational exposure to H₂S, highlighting the need to strengthen documentation, improve environmental controls and implement more rigorous prevention policies. It also proposed concrete actions to mitigate risks, contributing to a safer, more responsible industry aligned with current health and safety regulations
H2S Hydrogrn Sulfide risk factors, conditions and work environment in processes in the oil industry in Argentina
No full textThe purpose of this Final Graduation Project is to investigate exploring the different work processes, to visualize the occupational exposure to H2S hydrogen sulfide of a worker in the oil field, their atmospheric environment, working conditions, work environments, dangers and risks, in order to guarantee compliance with the permissible limits in current occupational health and safety regulations.In the oil industry, H2S is present in the atmosphere of all processes, various plants, batteries and locations because it is part of oil and gas, high concentrations can cause damage to health, or even death by suffocation and high contamination to the environment.For this, surveys were carried out obtaining data and analyzing the information of the workers of the different sectors, the majority have little knowledge of the exposure to H2S, the potentiality and severity of this gas, the work they do is dangerous
H2S Hydrogrn Sulfide risk factors, conditions and work environment in processes in the oil industry in Argentina
No full textThe purpose of this Final Graduation Project is to investigate exploring the different work processes, to visualize the occupational exposure to H2S hydrogen sulfide of a worker in the oil field, their atmospheric environment, working conditions, work environments, dangers and risks, in order to guarantee compliance with the permissible limits in current occupational health and safety regulations.In the oil industry, H2S is present in the atmosphere of all processes, various plants, batteries and locations because it is part of oil and gas, high concentrations can cause damage to health, or even death by suffocation and high contamination to the environment.For this, surveys were carried out obtaining data and analyzing the information of the workers of the different sectors, the majority have little knowledge of the exposure to H2S, the potentiality and severity of this gas, the work they do is dangerous
Occupational exposure to hydrogen sulphide in the oil industry
No full textIntroduction: The study analysed hydrogen sulphide (H₂S) exposure in the hydrocarbon industry of the San Jorge Gulf Basin, one of the most relevant regions for oil and gas production in Argentina. This area, located between Chubut and Santa Cruz, presented demanding working conditions and high risks, especially due to the presence of toxic gases. The research sought to assess the level of exposure to H₂S and propose actions to protect the health of operational personnel.Development: Different work activities were identified, such as welding, maintenance, civil works and field operations, where personnel were in direct contact with possible H₂S emissions. Companies such as YPF, PAE and CAPSA implemented safety measures such as the use of gas detectors, personal protective equipment (PPE) and work permits. However, a lack of documented and specific procedures was detected, which increased operational risk. Through field measurements, regulatory analysis and recognition of critical tasks, it was observed that workers operated in hostile environments and with constant exposure to gas, especially in confined spaces, hot work and supervisory tasks.Conclusions: The research made it possible to determine the degree of occupational exposure to H₂S, highlighting the need to strengthen documentation, improve environmental controls and implement more rigorous prevention policies. It also proposed concrete actions to mitigate risks, contributing to a safer, more responsible industry aligned with current health and safety regulations
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
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
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