1,720,956 research outputs found
Clean Energy as a Compelling Measure in Achieving Lower Temperature: Evidence from Downscaled Temperatures of two Niger Delta Cities Nigeria
No full textAir Pollution Load Assessment In The Residential Land-Use Types In Asaba, Delta State, Nigeria
Get PDFAir pollution continues to be a challenge in the world and the consequences of it are more in developing countries, due to the use of fossil fuels, generators, bad domestic fuel sources and infrequent pollution monitoring. This study investigated the pollutant load across different residential areas in Asaba, Delta State, Nigeria. A longitudinal research design was deployed for the study. Multi-gas detectors were used to collect pollutant readings at a height of 4 feet above ground level across the study area. The data was collected daily for 12 months from January to December 2023. The stated hypothesis "there is no significant spatial variation in atmospheric pollutants in Asaba", was tested using the Analysis of Variance (ANOVA). The study found that the pollutants increased from the low-density to the high-density areas. There was also a seasonal difference in pollutants amount across the residential areas. The computations of ANOVA models showed that there were statistically significant differences in the means of CO ppm P<0.05 (F=12.3123, sig = 0.00); NO2 P<0.05(F=15.1223, sig=0.03); O3 P<0.05(F=10.1021, sig = 0.05); PM2.5 P<0.05 (F=10.5231, sig = 0.04) and PM10 P<0.05 (F=6.4331 sig = 0.05). However, there was no significant difference in SO2 P>0.05(F=1.3001, sig = 0.10) in the residential areas. Investment in renewable energy and planting of trees and green spaces were among the recommendations of the study
A Comparative Study Of Upstream And Downstream Water Quality Of Warri River, In Delta State, Southern Nigeria
Get PDFWarri River is a major river in Southern Nigeria which serves several poor communities’ water demands. As such the water from this river serves domestic, industrial and agricultural purposes. The river also serves as a means of transportation for people, companies and communities that exist on the islands that dot the Niger Delta Region. The importance of this river necessitated this study on ‘comparative Study of Upstream and Downstream Water Quality of Warri River’. The study was carried out by collecting water samples from the river between January 2022 to December 2022 using systematic sampling techniques at both the up and downstream sections of the river. A total of 48 water samples (using 100 meters apart) were collected and analysed for physicochemical and biological indices. The results showed that variations exist in the concentration of physicochemical and biological parameters in the upstream and downstream sections of the river. While such parameters as EC, temperature, TDS, TSS, BOD, COD, Na, Calcium, Potassium showed higher concentrations in the downstream section, others such as pH, DO, Zn and Fe recorded higher concentrations in the upstream section of the river. As a result of the characteristics observed,it was recommended that routine monitoring of human activities and testing of the river water be done from time to time, to harness the full capacity of the river and ensure eco-sustainability
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
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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