1,720,954 research outputs found
The Influence of Socioeconomic Characteristics on Residents Practicing Sack Farming in Ibadan, Nigeria
Full text linkGlobal food security progress has declined, with one in nine people worldwide suffering from hunger. Increased agricultural productivity, particularly through innovative practices like Sack Farming Practices (SFPs), is crucial in addressing this challenge, especially in Nigeria. This study assesses the influence of socioeconomic characteristics on residents practicing sack farming (RPSF) in Ibadan. The cross-sectional survey design and mixed methods were adopted to select 1,288 respondents for the study. Three residential (high, medium, and low) areas were calibrated based on their densities, while RPSF were proportionally allotted to high (182), medium (708), and low (398) residential areas. Results revealed that majority of the respondents benefited from sack farming with an efficient use of space (High 6.4%, Medium 18.5% and Low 11.6%), increase in crop yields (High 3.7%, Medium 8.3% and Low 8.5%) and soil erosion reduction (High 0.0%, Medium 14.6% and Low 4.0%). Findings on age reveals that 31-40 respondents bracket shows the highest engagement (31.3%), with decreasing observation in younger and older groups, Chi-Square results (?²=41.791, p=0.003) confirm significant variation, with Phi value (0.180, p=0.003) denoting moderate association while gender status reveals that males (34.5%) indicate lower representation compared to females (65.5%). Inferentially, the Pearson Chi-Square results (?²=8.035, p=0.090) and Phi value (0.079, p=0.090) suggest no statistically significant gender-based difference in sack farming engagement levels. In conclusion, the study demonstrates that residents’ socioeconomic characteristics play a crucial role in shaping their involvement in sack farming practices as a form of urban agriculture, which is a solution to address food insecurity in Ibadan
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
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
Towards ductility enhancement of RC structures in regions of moderate seismicity : Hong Kong case study
No full textThe reinforcement detailing of reinforced concrete frame and wall-frame structures, in regions where the probability of a seismic event is not significant, is characterized by lack of special consideration for meeting ductile response requirements. The buildings are normally designed for the onerous combination of wind and gravity loads. In the event of an earthquake on such structures, the potential for damage and consequent loss of lives may be high. Therefore, to mitigate this potential hazard, this research examined the response of representative existing structures to low to medium seismic energy excitation (PGA = 0.15g). The seismic response behaviour factors were significantly improved through the proposed risk-level-compatible detailing techniques.The behaviour of existing reinforced concrete frame and wall-frame buildings, primarily designed and detailed for resisting onerous combination of gravity and wind loads, was computer simulated for a condition of low to moderate seismic event. It was concluded that the ductility demand on the buildings is significant and that the seismic response behaviour modification factors available in codes were not applicable for moderate seismicity consideration. Appropriate elastic seismic response behaviour modification factors were developed and presented. The vulnerability of the buildings was established through the evaluation of the theoretical displacement and curvature ductility factors demands. Experimental investigation was then performed on third scale substitute structure specimens in order to determine the available ductility factors and the proposed ductility enhancement. The specimens were specially designed to simulate the first four storeys of a building.For reinforced concrete rigid frame structure type, two specimens were tested. One was a control specimen; reinforced in accordance with standard non-seismic procedure. It was used for the verification of the available ductility factor in a frame. The other specimen was to investigate the enhancement in ductile response behaviour following modifications in reinforcement detailing specifications. Four simple modifications were made to the control specimen. The first involved reducing the spacing between the stirrups while still maintaining the transverse steel ratio (Asv/Sv) in beams. The other was the provision of double-U stirrup at the beam-column joint. The third was the provision of short bent-up bars at the support region of the beams. The fourth involved the provision of crossties in the column. For the study on wall-frame structures, two third scale sub-frame specimens were fabricated and tested. One specimen was a control specimen used to verify the available ductility of a non-seismically designed and detailed wall-frame building. The second specimen's reinforcement detail was modified to enhance ductile response. The beam and column sections including the reinforcement detailing were maintained the same as in the frame building for both the control and the improved specimen respectively. Similar to the frame specimen, double U-stirrups were provided at the beam-column joint of the improved specimen. In the wall of the improved specimen, the spacing between the longitudinal bars was reduced whilst still maintaining the longitudinal reinforcement equal to that of the control specimen. Additionally, the wall’s distribution bars ratio were also maintained but provided diagonally at opposing slope on both faces of the wall to form an X-shape pattern. The specimens were quasi-statically tested. It was concluded that frame and wall-frame buildings in non-seismic regions would experience ductility demand factors greater than their inherent ductility factors in the event of a moderate seismic event. It was found that the ductility factors of the building types could be vastly increased, beyond 400% in an instance, with modification in detailing specifications that do not result in radical changes in presently practiced design and detailing techniques or a significant increase in construction cost. The detailing recommendations in this study eliminate the need for seismic analysis and design in ensuring frame buildings’ satisfactory seismic response performance in low to moderate seismic regions.</p
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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