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Sebei</title> <meta name="description" content="Search results for: Julius Sebei"> <meta name="keywords" content="Julius Sebei"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Julius Sebei"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 51</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Julius Sebei</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">51</span> Undernutrition Among Children Below Five Years of Age in Uganda: A Deep Dive into Space and Time</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vallence%20Ngabo%20Maniragaba">Vallence Ngabo Maniragaba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aimed at examining the variations of undernutrition among children below 5 years of age in Uganda. The approach of spatial and spatiotemporal analysis helped in identifying cluster patterns, hot spots and emerging hot spots. Data from the 6 Uganda Demographic and Health Surveys spanning from 1990 to 2016 were used with the main outcome variable being undernutrition among children <5 years of age. All data that were relevant to this study were retrieved from the survey datasets and combined with the 214 shape files for the districts of Uganda to enable spatial and spatiotemporal analysis. Spatial maps with the spatial distribution of the prevalence of undernutrition, both in space and time, were generated using ArcGIS Pro version 2.8. Moran’s I, an index of spatial autocorrelation, rules out doubts of spatial randomness in order to identify spatially clustered patterns of hot or cold spot areas. Furthermore, space-time cubes were generated to establish the trend in undernutrition as well as to mirror its variations over time and across Uganda. Moreover, emerging hot spot analysis was done to help identify the patterns of undernutrition over time. The results indicate a heterogeneous distribution of undernutrition across Uganda and the same variations were also evident over time. Moran’s I index confirmed spatial clustered patterns as opposed to random distributions of undernutrition prevalence. Four hot spot areas, namely; the Karamoja, the Sebei, the West Nile and the Toro regions were significantly evident, most of the central parts of Uganda were identified as cold spot clusters, while most of Western Uganda, the Acholi and the Lango regions had no statistically significant spatial patterns by the year 2016. The spatio-temporal analysis identified the Karamoja and Sebei regions as clusters of persistent, consecutive and intensifying hot spots, West Nile region was identified as a sporadic hot spot area while the Toro region was identified with both sporadic and emerging hotspots. In conclusion, undernutrition is a silent pandemic that needs to be handled with both hands. At 31.2 percent, the prevalence is still very high and unpleasant. The distribution across the country is nonuniform with some areas such as the Karamoja, the West Nile, the Sebei and the Toro regions being epicenters of undernutrition in Uganda. Over time, the same areas have experienced and exhibited high undernutrition prevalence. Policymakers, as well as the implementers, should bear in mind the spatial variations across the country and prioritize hot spot areas in order to have efficient, timely and region-specific interventions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=undernutrition" title="undernutrition">undernutrition</a>, <a href="https://publications.waset.org/abstracts/search?q=spatial%20autocorrelation" title=" spatial autocorrelation"> spatial autocorrelation</a>, <a href="https://publications.waset.org/abstracts/search?q=hotspots%20analysis" title=" hotspots analysis"> hotspots analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=geographically%20weighted%20regressions" title=" geographically weighted regressions"> geographically weighted regressions</a>, <a href="https://publications.waset.org/abstracts/search?q=emerging%20hotspots%20analysis" title=" emerging hotspots analysis"> emerging hotspots analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=under-fives" title=" under-fives"> under-fives</a>, <a href="https://publications.waset.org/abstracts/search?q=Uganda" title=" Uganda"> Uganda</a> </p> <a href="https://publications.waset.org/abstracts/166530/undernutrition-among-children-below-five-years-of-age-in-uganda-a-deep-dive-into-space-and-time" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166530.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">86</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">50</span> Phenotypic Characterisation of Bapedi Sheep Breed</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fhulufhelo%20Ramukhithi">Fhulufhelo Ramukhithi</a>, <a href="https://publications.waset.org/abstracts/search?q=Kgothatso%20%20Masethe"> Kgothatso Masethe</a>, <a href="https://publications.waset.org/abstracts/search?q=Tlou%20Chokoe"> Tlou Chokoe</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayanda%20%20Maqhashu"> Ayanda Maqhashu</a>, <a href="https://publications.waset.org/abstracts/search?q=Julius%20%20Sebei"> Julius Sebei</a>, <a href="https://publications.waset.org/abstracts/search?q=Tshililo%20Raphulu"> Tshililo Raphulu</a>, <a href="https://publications.waset.org/abstracts/search?q=Joseph%20Mugwabana"> Joseph Mugwabana</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Phenotypic characterisation ensures that the physical appearance of an animal is well documented. The information provided by this phenotypic characterisation study is important for planning management and the use of animal genetic resources. The aim of this study was to characterise the phenotypic characteristics of Bapedi sheep. Bapedi sheep are at risk of extinction like most of the indigenous breeds. As a result, a total of 196 Bapedi ewes and 35 rams were used. Phenotypic-qualitative characteristics were evaluated through visual appraisal. Phenotypic-quantitative characteristics such as body parts measurements were obtained using a flexible tape (cm), while body weight were obtained by using a weighing scale (kg). Bapedi rams (97 %) had higher satisfactory body condition when compared to ewes (75 %). A higher proportion of Bapedi sheep that did not have ticks observed (ewes = 87 % and rams = 91 %). Brown and white colour combination (head x body) was dominating in Bapedi sheep (80 % ewes and 91 % rams). Bapedi ewes did not have any horns; however, 3 % of rams had them. Bapedi sheep had a higher proportion of brown eyes, moderate neck, stiff sideways ears and normal front legs. Bapedi rams had a higher proportion of well-balanced and good attached testicles. Bapedi ewes had average (45 %), small (40 %) and big udders (15 %). Bapedi rams had a significantly higher body weight, height, depth, hearth girth circumference, rump width, hind leg width and length compared to ewes. However, both Bapedi rams and ewes had similar age, body condition score, tail length, length below hock and knee. In conclusion, Bapedi sheep had a higher satisfactory body condition and brown and white colour combination. Some of Bapedi rams’ quantitative characteristics were higher compared to ewes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=extinction" title="extinction">extinction</a>, <a href="https://publications.waset.org/abstracts/search?q=indigenous" title=" indigenous"> indigenous</a>, <a href="https://publications.waset.org/abstracts/search?q=phenotypic" title=" phenotypic"> phenotypic</a>, <a href="https://publications.waset.org/abstracts/search?q=smallstock" title=" smallstock"> smallstock</a> </p> <a href="https://publications.waset.org/abstracts/135664/phenotypic-characterisation-of-bapedi-sheep-breed" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/135664.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">213</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">49</span> Mineralogical and Geochemical Constraints on the Origin and Environment of Numidian Siliceous Sedimentary Rocks of the Extreme Northwest Tunisia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ben%20Yahia%20Nouha">Ben Yahia Nouha</a>, <a href="https://publications.waset.org/abstracts/search?q=Harris%20Chris"> Harris Chris</a>, <a href="https://publications.waset.org/abstracts/search?q=Sebei%20Abdelaziz"> Sebei Abdelaziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Boussen%20Slim"> Boussen Slim</a>, <a href="https://publications.waset.org/abstracts/search?q=Chaabani%20Fredj"> Chaabani Fredj</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present work has set itself the objective of studying non-detritic siliceous rocks of the extreme northwest Tunisia. It aims to examine the origin and their sedimentary depositional environment based on mineralogical and geochemical characteristics. The different sections were located in the area of Babouch and the area of Tabarka. The collected samples were subjected to mineralogical and geochemical characterization using different analytical methods: X-ray diffraction (XRD), geochemical analysis (ICP- AES), isotopic geochemistry (δ18O), to assess their suitability for industrial use. X-ray powder diffraction of the pure siliceous rock indicates quartz as the major mineral, with the total lack of amorphous silica. Trace impurities, such as carbonate and clay minerals, are concealed in the analytical results. The petrographic examination revealed allowed us to deduce that this rock was deriving from tests of siliceous organisms (the radiolarians). The chemical composition shows that SiO2, Al2O3, and Fe2O3 represent the most abundant oxides. The other oxides are present in negligible quantities. Geochemical data support a biogenic and non-hydrothermal origin of babouchite silica. Oxygen isotopic has shown that babouchites were formed in an environment with a high temperature ranging from 56 °C to 73 °C. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biogenic%20silica" title="biogenic silica">biogenic silica</a>, <a href="https://publications.waset.org/abstracts/search?q=babouchite%20formation" title=" babouchite formation"> babouchite formation</a>, <a href="https://publications.waset.org/abstracts/search?q=XRD" title=" XRD"> XRD</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20analysis" title=" chemical analysis"> chemical analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=oxygen%20isotopic" title=" oxygen isotopic"> oxygen isotopic</a>, <a href="https://publications.waset.org/abstracts/search?q=northwest%20tunisia" title=" northwest tunisia"> northwest tunisia</a> </p> <a href="https://publications.waset.org/abstracts/141975/mineralogical-and-geochemical-constraints-on-the-origin-and-environment-of-numidian-siliceous-sedimentary-rocks-of-the-extreme-northwest-tunisia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141975.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">145</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">48</span> Democracy and Human Rights in Nigeria's Fourth Republic: An Assessment </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kayode%20Julius%20Oni">Kayode Julius Oni</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Without mincing words, democracy is by far the most popular form of government in the world today. No matter how we look at it, and regardless of the variant, most leaders in the world today wish to be seen or labeled as Democrats. Perhaps, its attractions in terms of freedom of allocation, accountability, smooth successions of leadership and a lot more, account for its appeal to the ordinary people. The governance style in Nigeria since 1999 cannot be said to be different from the military. Elections are manipulated, judicial processes abused, and the ordinary people do not have access to the dividends of democracy. The paper seeks to address the existing failures experienced under democratic rule in Nigeria which have to transcend into violation of human rights in the conduct of government business. The paper employs the primary and secondary sources of data collection, and it is highly descriptive and critical. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=democracy" title="democracy">democracy</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20rights" title=" human rights"> human rights</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigeria" title=" Nigeria"> Nigeria</a>, <a href="https://publications.waset.org/abstracts/search?q=politics" title=" politics"> politics</a>, <a href="https://publications.waset.org/abstracts/search?q=republic" title=" republic"> republic</a> </p> <a href="https://publications.waset.org/abstracts/57968/democracy-and-human-rights-in-nigerias-fourth-republic-an-assessment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57968.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">260</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">47</span> Hydro-Climatological, Geological, Hydrogeological and Geochemical Study of the Coastal Aquifer System of Chiba Watershed (Cape Bon Peninsula)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khawla%20Askri">Khawla Askri</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Haythem%20Msaddek"> Mohamed Haythem Msaddek</a>, <a href="https://publications.waset.org/abstracts/search?q=AbdelAziz%20Sebei"> AbdelAziz Sebei</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Climate change combined with the increase in anthropogenic activities will affect coastal groundwater systems around the world and, more particularly, the Cap Bon region in the North East of Tunisia. This study aims to study the impact of climate change and human stress on the salinization and quantification of groundwater in the Wadi Chiba watershed. In this regard, a hydro-climatological study and a hydrogeological study were carried out based on the characterization of the aquifer system of the eastern coast at the level of the watershed of Wadi Chiba in order to seek to identify, first of all, the degradation of the state of the aquifer on the quantitative level by the study of the piezometric and its evolution over time. Secondly, we sought to identify the degradation of the state of the aquifer qualitatively by using the geochemical method, in particular the major elements, to assess the mineralization of the aquifer water and understand its hydrogeochemical functioning. The study of the Na + / Cl- and Ca2 + / Mg2 + chemical relationships confirmed the presence of a marine intrusion downstream of the Wadi Chiba watershed northeast of Cap-Bon accompanied by a piezometric depression. For this purpose, we proceeded to: 1) Mapping of both piezometric data and salinity. 2) The interpretation of the mapping results. 3)Identification of the origin of the localized deterioration in the quality of the aquifer water. Finally, the analysis of the results showed that the scarcity of water is already forcing human actions in the Chiba watershed due to the irrigation of agricultural lands and the overexploitation of the water table in the study area. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=climate%20change" title="climate change">climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20activities" title=" human activities"> human activities</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20table" title=" water table"> water table</a>, <a href="https://publications.waset.org/abstracts/search?q=Wadi%20Chiba%20watershed" title=" Wadi Chiba watershed"> Wadi Chiba watershed</a>, <a href="https://publications.waset.org/abstracts/search?q=piezometric%20depression" title=" piezometric depression"> piezometric depression</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20intrusion" title=" marine intrusion"> marine intrusion</a> </p> <a href="https://publications.waset.org/abstracts/163279/hydro-climatological-geological-hydrogeological-and-geochemical-study-of-the-coastal-aquifer-system-of-chiba-watershed-cape-bon-peninsula" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163279.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">92</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">46</span> Optimization of a Hybrid PV-Diesel Mini grid System: A Case Study of Vimtim-Mubi, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julius%20Agaka%20Yusufu">Julius Agaka Yusufu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study undertakes the development of an optimal PV-diesel hybrid power system tailored to the specific energy landscape of Vimtim Mubi, Nigeria, utilizing real-world wind speed, solar radiation, and diesel cost data. Employing HOMER simulation, the research meticulously assesses the technical and financial viability of this hybrid configuration. Additionally, a rigorous performance comparison is conducted between the PV-diesel system and the conventional grid-connected alternative, offering crucial insights into the potential advantages and economic feasibility of adopting hybrid renewable energy solutions in regions grappling with energy access and reliability challenges, with implications for sustainable electrification efforts in similar communities worldwide. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vimtim-Nigeria" title="Vimtim-Nigeria">Vimtim-Nigeria</a>, <a href="https://publications.waset.org/abstracts/search?q=homer" title=" homer"> homer</a>, <a href="https://publications.waset.org/abstracts/search?q=renewable%20energy" title=" renewable energy"> renewable energy</a>, <a href="https://publications.waset.org/abstracts/search?q=PV-diesel%20hybrid%20system." title=" PV-diesel hybrid system."> PV-diesel hybrid system.</a> </p> <a href="https://publications.waset.org/abstracts/183306/optimization-of-a-hybrid-pv-diesel-mini-grid-system-a-case-study-of-vimtim-mubi-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183306.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">72</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">45</span> Optimization of a Hybrid PV-Diesel Minigrid System: A Case Study of Vimtim-Mubi, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julius%20Agaka%20Yusufu">Julius Agaka Yusufu</a>, <a href="https://publications.waset.org/abstracts/search?q=Tsutomu%20Dei"> Tsutomu Dei</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanif%20Ibrahim%20Awal"> Hanif Ibrahim Awal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study undertakes the development of an optimal PV-diesel hybrid power system tailored to the specific energy landscape of Vimtim Mubi, Nigeria, utilizing real-world wind speed, solar radiation, and diesel cost data. Employing HOMER simulation, the research meticulously assesses the technical and financial viability of this hybrid configuration. Additionally, a rigorous performance comparison is conducted between the PV-diesel system and the conventional grid-connected alternative, offering crucial insights into the potential advantages and economic feasibility of adopting hybrid renewable energy solutions in regions grappling with energy access and reliability challenges, with implications for sustainable electrification efforts in similar communities worldwide. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vimtim-Nigeria" title="Vimtim-Nigeria">Vimtim-Nigeria</a>, <a href="https://publications.waset.org/abstracts/search?q=Homer" title=" Homer"> Homer</a>, <a href="https://publications.waset.org/abstracts/search?q=renewable%20energy" title=" renewable energy"> renewable energy</a>, <a href="https://publications.waset.org/abstracts/search?q=PV-diesel%20hybrid%20system" title=" PV-diesel hybrid system"> PV-diesel hybrid system</a> </p> <a href="https://publications.waset.org/abstracts/173838/optimization-of-a-hybrid-pv-diesel-minigrid-system-a-case-study-of-vimtim-mubi-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/173838.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">85</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">44</span> Data Management and Analytics for Intelligent Grid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=G.%20Julius%20P.%20Roy">G. Julius P. Roy</a>, <a href="https://publications.waset.org/abstracts/search?q=Prateek%20Saxena"> Prateek Saxena</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanjeev%20Singh"> Sanjeev Singh </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Power distribution utilities two decades ago would collect data from its customers not later than a period of at least one month. The origin of SmartGrid and AMI has subsequently increased the sampling frequency leading to 1000 to 10000 fold increase in data quantity. This increase is notable and this steered to coin the tern Big Data in utilities. Power distribution industry is one of the largest to handle huge and complex data for keeping history and also to turn the data in to significance. Majority of the utilities around the globe are adopting SmartGrid technologies as a mass implementation and are primarily focusing on strategic interdependence and synergies of the big data coming from new information sources like AMI and intelligent SCADA, there is a rising need for new models of data management and resurrected focus on analytics to dissect data into descriptive, predictive and dictatorial subsets. The goal of this paper is to is to bring load disaggregation into smart energy toolkit for commercial usage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=data%20management" title="data management">data management</a>, <a href="https://publications.waset.org/abstracts/search?q=analytics" title=" analytics"> analytics</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20data%20analytics" title=" energy data analytics"> energy data analytics</a>, <a href="https://publications.waset.org/abstracts/search?q=smart%20grid" title=" smart grid"> smart grid</a>, <a href="https://publications.waset.org/abstracts/search?q=smart%20utilities" title=" smart utilities "> smart utilities </a> </p> <a href="https://publications.waset.org/abstracts/27445/data-management-and-analytics-for-intelligent-grid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27445.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">779</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">43</span> Babouchite Siliceous Rocks: Mineralogical and Geochemical Characterization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ben%20Yahia%20Nouha">Ben Yahia Nouha</a>, <a href="https://publications.waset.org/abstracts/search?q=Sebei%20Abdelaziz"> Sebei Abdelaziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Boussen%20Slim"> Boussen Slim</a>, <a href="https://publications.waset.org/abstracts/search?q=Chaabani%20Fredj"> Chaabani Fredj</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present work aims to determine mineralogical and geochemical characteristics of siliceous rock levels and to clarify the origin through geochemical arguments. This study was performed on the deposit of Tabarka-Babouch, which belongs to the northwestern of Tunisia; they spread out the later Miocene. Investigations were carried out to study mineralogical structure by XRD and chemical analysis by ICP-AES. The X-ray diffraction (XRD) patterns of the powdered natural rocks show that the Babouchite is composed mainly of quartz and clay minerals (smectite, illite, and kaolinite). Siliceous rocks contain quartz as a major silica mineral, which is characterized by two broad reflections at the vicinity of 4.26Å and 3.34 Å, respectively, with a total lack of opal-CT. That confirms that these siliceous rocks are quartz-rich (can reach 90%). Indeed, the amounts of all clay minerals (ACM), constituted essentially by smectite marked by a close association with illite and kaolinite, are relatively high, where their percentages vary from 7 to 46%. Chemical analyses show that the major oxide contents are consistent with mineralogical observations. It reveals that the siliceous rocks of the Babouchite formation are rich in SiO₂. The data of whole-rock chemical analyses indicate that the SiO₂ content is generally in the range 73-91 wt.%; (average: 80.43 wt.%). The concentration of Al₂O₃, which represent the detrital fractions in the studied samples, varies from 3.99 to 10.55 wt. % and Fe₂O₃ from 0.73 to 4.41wt. %. The low levels recorded in CaO (%) show that the carbonate is considered impurities. However, these rocks contain a low amount of some others oxides, such as the following: Na₂O, MgO, K₂O, and TiO₂. The trace elemental distributions also vary with high Sr (up to 84.55 ppm), Cu (5–127 ppm), and Zn (up to 124 ppm), with a relatively lower concentration of Co (2.43-25.54 ppm), Cr (10–61 ppm) and Pb (8-22ppm). The Babouchite siliceous rocks of northwestern of Tunisia have generally high Al/ (Al+Fe+Mn) values (0.63-0.83). The majority of Al/ (Al+Fe+Mn) values are nearly of 0.6, which is the biogenic end-member. Thus, Al/ (Al+Fe+Mn) values revealed the biogenic origin of silica. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=siliceous%20rocks" title="siliceous rocks">siliceous rocks</a>, <a href="https://publications.waset.org/abstracts/search?q=Babouchite%20formation" title=" Babouchite formation"> Babouchite formation</a>, <a href="https://publications.waset.org/abstracts/search?q=XRD" title=" XRD"> XRD</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20analysis" title=" chemical analysis"> chemical analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=biogenic%20silica" title=" biogenic silica"> biogenic silica</a>, <a href="https://publications.waset.org/abstracts/search?q=Northwestern%20of%20Tunisia" title=" Northwestern of Tunisia"> Northwestern of Tunisia</a> </p> <a href="https://publications.waset.org/abstracts/131968/babouchite-siliceous-rocks-mineralogical-and-geochemical-characterization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/131968.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">128</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">42</span> Intelligent Electric Vehicle Charging System (IEVCS)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Prateek%20Saxena">Prateek Saxena</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanjeev%20Singh"> Sanjeev Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Julius%20Roy"> Julius Roy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The security of the power distribution grid remains a paramount to the utility professionals while enhancing and making it more efficient. The most serious threat to the system can be maintaining the transformers, as the load is ever increasing with the addition of elements like electric vehicles. In this paper, intelligent transformer monitoring and grid management has been proposed. The engineering is done to use the evolving data from the smart meter for grid analytics and diagnostics for preventive maintenance. The two-tier architecture for hardware and software integration is coupled to form a robust system for the smart grid. The proposal also presents interoperable meter standards for easy integration. Distribution transformer analytics based on real-time data benefits utilities preventing outages, protects the revenue loss, improves the return on asset and reduces overall maintenance cost by predictive monitoring. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electric%20vehicle%20charging" title="electric vehicle charging">electric vehicle charging</a>, <a href="https://publications.waset.org/abstracts/search?q=transformer%20monitoring" title=" transformer monitoring"> transformer monitoring</a>, <a href="https://publications.waset.org/abstracts/search?q=data%20analytics" title=" data analytics"> data analytics</a>, <a href="https://publications.waset.org/abstracts/search?q=intelligent%20grid" title=" intelligent grid"> intelligent grid</a> </p> <a href="https://publications.waset.org/abstracts/27443/intelligent-electric-vehicle-charging-system-ievcs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27443.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">790</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">41</span> A Quality Improvement Project on Eye Care in the Intensive Care Unit</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julius%20Lenaerts">Julius Lenaerts</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Elsaadawy"> Ahmed Elsaadawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Bashir"> Mohammed Bashir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background Sedated and paralyzed patients have an impaired blink reflex leading to ophthalmic complications such as conjunctivitis, epithelial defects, bacterial keratitis, and more. These are entirely preventable complications through regular eye care. Methods Patients at level 3 or above (intubated/paralyzed) care in the Intensive Care Unit (ICU) were reviewed between February and April. Data was pulled from Metavision and adherence was compared to Royal College of Ophthalmology (RCOphth) recommendations[4]. Using a multi-pronged approach through posters, individual teaching sessions and faculty teaching, we aimed to educate staff about eye care in the ICU. Patients were reaudited in the period July to August. Results Out of 40 patients, only 23% were assessed for eye care needs on admission compared to 77% after teaching; eye care was only delivered 59% of the time it was due, compared to 61%; 2.5% of patients had eyedrops prescribed compared to 41%. This shows an overall increase in meeting RCOphth standards. Key messages Eye care is an overlooked aspect of patient care in the ICU, associated with avoidable ocular complications. Healthcare staff need further rigorous education on the provision and importance of eye care to reduce avoidable complications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ICU" title="ICU">ICU</a>, <a href="https://publications.waset.org/abstracts/search?q=eye%20care" title=" eye care"> eye care</a>, <a href="https://publications.waset.org/abstracts/search?q=risk" title=" risk"> risk</a>, <a href="https://publications.waset.org/abstracts/search?q=QIP" title=" QIP"> QIP</a> </p> <a href="https://publications.waset.org/abstracts/168173/a-quality-improvement-project-on-eye-care-in-the-intensive-care-unit" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168173.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">83</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">40</span> Enterpreneurial Orientation Dimensions for Sustainable Development in Construction Firms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kudirat%20I.%20Zakariyyah">Kudirat I. Zakariyyah</a>, <a href="https://publications.waset.org/abstracts/search?q=Iniobong%20B.%20John"> Iniobong B. John</a>, <a href="https://publications.waset.org/abstracts/search?q=Julius%20O.%20Faremi"> Julius O. Faremi</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Adio-Moses"> David Adio-Moses</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the key contributors to firms’ growth, performance, and sustainability is entrepreneurial orientation (EO). Most studies on EO, however, are in other industries than construction and, more often, exploratory. The purpose of this study is thus to create an awareness on entrepreneurial orientation and its dimensions in contracting firms. Considering the need for sustainability, the study thus examined contracting firms’ entrepreneurial orientation dimensions that are required in order to keep pace with the demands for sustainable development. This was done by giving out questionnaires to a sample of 116 respondents from a population of 166 construction firms in Lagos state. Data were collected through a survey and analysed using mean scores and analysis of variance (ANOVA). The result revealed the prevalence of the four dimensions of EO, though in moderate proportion. In addition, the study identified review of organisational structure as the top entrepreneurial orientation dimension needed for sustainable development. The study concludes that the firms should identify the existing orientation dimensions and its relevance with sustainability so as to be able to know the required review that will be appropriate in the industry. It is recommended that the firms need to do more on raising the level of prevalence of the various orientation dimensions in order to achieve the merits of the different constructs of sustainability. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=construction" title="construction">construction</a>, <a href="https://publications.waset.org/abstracts/search?q=culture" title=" culture"> culture</a>, <a href="https://publications.waset.org/abstracts/search?q=entrepreneurial-orientation" title=" entrepreneurial-orientation"> entrepreneurial-orientation</a>, <a href="https://publications.waset.org/abstracts/search?q=dimension" title=" dimension"> dimension</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability" title=" sustainability"> sustainability</a> </p> <a href="https://publications.waset.org/abstracts/115907/enterpreneurial-orientation-dimensions-for-sustainable-development-in-construction-firms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/115907.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">154</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">39</span> Right-Wing Narratives Associated with Cognitive Predictors of Radicalization: Direct User Engagement Drives Radicalization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julius%20Brejohn%20Calvert">Julius Brejohn Calvert</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This Study Aimed to Investigate the Ecological Nature of Extremism Online. The Construction of a Far-Right Ecosystem Was Successful Using a Sample of Posts, Each With Separate Narrative Domains. Most of the Content Expressed Anti-black Racism and Pro-white Sentiments. Many Posts Expressed an Overt Disdain for the Recent Progress Made Regarding the United States and the United Kingdom’s Expansion of Civil Liberties to People of Color (Poc). Of Special Note, Several Anti-lgbt Posts Targeted the Ongoing Political Grievances Expressed by the Transgender Community. Overall, the Current Study Is Able to Demonstrate That Direct Measures of User Engagement, Such as Shares and Reactions, Can Be Used to Predict the Effect of a Post’s Radicalization Capabilities, Although Single Posts Do Not Operate on the Cognitive Processes of Radicalization Alone. In This Analysis, the Data Supports a Theoretical Framework Where Individual Posts Have a Higher Radicalization Capability Based on the Amount of User Engagement (Both Indirect and Direct) It Receives. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cognitive%20psychology" title="cognitive psychology">cognitive psychology</a>, <a href="https://publications.waset.org/abstracts/search?q=cognitive%20radicalization" title=" cognitive radicalization"> cognitive radicalization</a>, <a href="https://publications.waset.org/abstracts/search?q=extremism%20online" title=" extremism online"> extremism online</a>, <a href="https://publications.waset.org/abstracts/search?q=domestic%20extremism" title=" domestic extremism"> domestic extremism</a>, <a href="https://publications.waset.org/abstracts/search?q=political%20science" title=" political science"> political science</a>, <a href="https://publications.waset.org/abstracts/search?q=political%20psychology" title=" political psychology"> political psychology</a> </p> <a href="https://publications.waset.org/abstracts/165570/right-wing-narratives-associated-with-cognitive-predictors-of-radicalization-direct-user-engagement-drives-radicalization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165570.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">71</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">38</span> Livelihood and Willingness to Accept Reducing Emission from Deforestation and Degradation by Local People in the Southwestern Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adebayo%20John%20Julius">Adebayo John Julius</a>, <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20Imoagene"> Emmanuel Imoagene</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mitigating global warming through reducing emission from deforestation and degradation (REDD) has been given increasing attentions in government-to-government negotiations while discussions among decision-makers have been going on, it is important to learn about the perception of local people in relation to REDD because the implementation will affect their lives. A survey was conducted using questionnaires to examine the livelihood and forest dependency of the local people in the vicinity of Onigambari and Ido area. Respondents’ income from forest activities and forest resources are collected. Participation in tourism related activities among the household members was also investigated to measure the potential of this “eco-friendly” income generation activity in the local communities. There was a general indication of reducing slash-and-burn activities with distance from the park and involvement in tourism-related job. Most of the local people were willing to accept compensation as alternative for slash-and-burn activities. The compensation preferred is in various form of development and different level of forest and environmental activities <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=livelihood" title="livelihood">livelihood</a>, <a href="https://publications.waset.org/abstracts/search?q=emission" title=" emission"> emission</a>, <a href="https://publications.waset.org/abstracts/search?q=deforestation" title=" deforestation"> deforestation</a>, <a href="https://publications.waset.org/abstracts/search?q=degradation" title=" degradation"> degradation</a>, <a href="https://publications.waset.org/abstracts/search?q=local%20people" title=" local people"> local people</a>, <a href="https://publications.waset.org/abstracts/search?q=southwest%20Nigeria" title=" southwest Nigeria"> southwest Nigeria</a> </p> <a href="https://publications.waset.org/abstracts/120089/livelihood-and-willingness-to-accept-reducing-emission-from-deforestation-and-degradation-by-local-people-in-the-southwestern-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120089.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">143</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> Assessing the Effects of Community Informatics on Livelihoods Sustainability in Nigeria: a Model for Rural Communities </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adebayo%20J.%20Julius">Adebayo J. Julius</a>, <a href="https://publications.waset.org/abstracts/search?q=Oluremi%20N.%20Iluyomade"> Oluremi N. Iluyomade</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Livelihood in Nigeria is a paradox of poverty amidst plenty. The Country is endowed with a good climate for agriculture, naturally growing fruit trees and vegetables, and undomesticated water resources. In spite of all its endowment, Nigeria continues to live in poverty year in year out. This thus raises a very important question as to how can there be so much poverty in Nigeria with all its natural endowments. This study focused comparative analysis of the utilization of community informatics for sustainable livelihoods through agriculture. The idea projected in this study is that small strategic changes in the modus operandi of social informatics can have a significant impact on sustainability of livelihoods. This paper carefully explored the theories of community informatics and its efficacies in dealing with sustainability issues. This study identified, described and evaluates the roles of community informatics in some sectors of the economy, different analytical tools to benchmark the influence of social informatics in agriculture against what is obtainable in agricultural sectors of the economy were used. It further employed comparative analysis to build a case model for sustainable livelihood in agriculture through community informatics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=informatics" title="informatics ">informatics </a>, <a href="https://publications.waset.org/abstracts/search?q=model" title=" model"> model</a>, <a href="https://publications.waset.org/abstracts/search?q=rural%20community" title=" rural community"> rural community</a>, <a href="https://publications.waset.org/abstracts/search?q=livelihoods%20sustainability" title=" livelihoods sustainability"> livelihoods sustainability</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigeria" title=" Nigeria"> Nigeria</a> </p> <a href="https://publications.waset.org/abstracts/119591/assessing-the-effects-of-community-informatics-on-livelihoods-sustainability-in-nigeria-a-model-for-rural-communities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/119591.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">151</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> An Assessment on Awareness of Public Transport Policies for Persons with Disabilities in Three South-West Nigerian States</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julius%20A.%20Ademokoya">Julius A. Ademokoya</a>, <a href="https://publications.waset.org/abstracts/search?q=Grace%20C.%20Ilori"> Grace C. Ilori</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Extreme public transport difficulty for persons with disabilities (PWDs) has always been one of the challenges which these individuals experience on a daily basis in Nigeria. Private and public transport vehicles are not disability- friendly. Operators of public transport are often very intolerant of PWDs' conditions. Indeed, many Nigerians believe it is luxury for PWDs to engage in public transport. They are rarely expected to be seen in public much less going to places via public transport means. Initiatives by a few Nigerian states to develop and implement public transport policies for PWDs, therefore, were a huge relief for them and some concerned Nigerians. A few years ago, three southwest Nigerian states (Lagos, Ondo, and Ekiti) came up with some legislative welfare provisions (including transport programmes) for PWDs. This study, therefore, sought to ascertain levels of awareness and implementation of public policies among the PWDs and those expected to implement the policies. The study adopted a mixed method research. Findings across the three states showed that: (1) awareness of public policies among PWDs is low and (2) a considerable scope of the policies is not yet implemented. Recommendations are, therefore, made on how to improve on awareness and implementation of transport policies for PWDs in three south-west Nigerian states. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=awareness" title="awareness">awareness</a>, <a href="https://publications.waset.org/abstracts/search?q=disability%20rights" title=" disability rights"> disability rights</a>, <a href="https://publications.waset.org/abstracts/search?q=implementation%20persons%20with%20disability" title=" implementation persons with disability"> implementation persons with disability</a>, <a href="https://publications.waset.org/abstracts/search?q=transport%20policies" title=" transport policies"> transport policies</a> </p> <a href="https://publications.waset.org/abstracts/105821/an-assessment-on-awareness-of-public-transport-policies-for-persons-with-disabilities-in-three-south-west-nigerian-states" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105821.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">177</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Assessing the Impact of Covid-19 Pandemic on Waste Management Workers in Ghana</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mensah-Akoto%20Julius">Mensah-Akoto Julius</a>, <a href="https://publications.waset.org/abstracts/search?q=Kenichi%20Matsui"> Kenichi Matsui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper examines the impact of COVID-19 on waste management workers in Ghana. A questionnaire survey was conducted among 60 waste management workers in Accra metropolis, the capital region of Ghana, to understand the impact of the COVID-19 pandemic on waste generation, workers’ safety in collecting solid waste, and service delivery. To find out correlations between the pandemic and safety of waste management workers, a regression analysis was used. Regarding waste generation, the results show the pandemic led to the highest annual per capita solid waste generation, or 3,390 tons, in 2020. Regarding the safety of workers, the regression analysis shows a significant and inverse association between COVID-19 and waste management services. This means that contaminated wastes may infect field workers with COVID-19 due to their direct exposure. A rise in new infection cases would have a negative impact on the safety and service delivery of the workers. The result also shows that an increase in economic activities negatively impacts waste management workers. The analysis, however, finds no statistical relationship between workers’ service deliveries and employees’ salaries. The study then discusses how municipal waste management authorities can ensure safe and effective waste collection during the pandemic. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Covid-19" title="Covid-19">Covid-19</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20management%20worker" title=" waste management worker"> waste management worker</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20collection" title=" waste collection"> waste collection</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghana" title=" Ghana"> Ghana</a> </p> <a href="https://publications.waset.org/abstracts/141411/assessing-the-impact-of-covid-19-pandemic-on-waste-management-workers-in-ghana" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141411.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">203</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">34</span> The Effects of Different Types of Herbicides Used for Lawn Maintenance on the Dynamics of Weeds in an Urban Environment </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yetunde%20I.%20Bulu">Yetunde I. Bulu</a>, <a href="https://publications.waset.org/abstracts/search?q=Moses%20B.%20Adewole"> Moses B. Adewole</a>, <a href="https://publications.waset.org/abstracts/search?q=Julius%20O.%20Faluyi"> Julius O. Faluyi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study investigates the effect of aggressive application of herbicide on weed succession in an urban environment in Ile-Ife, Osun State. An inspection of the communities was carried out to identify sites maintained by herbicides (test plots) and those without herbicide history (control plots). Four different experimental plots located at Olasode, Eleweran, Ife City and Parakin within Ile-Ife town were monitored during the study. Comprehensive enumeration and identification of plant populations to species level was carried out on each of the plots and at every visit to determine the direction of succession. Index of similarities was used to determine the relationship in plant species composition between plots treated with herbicide and the untreated plots. The trend of increasing plant species was observed in all the study plots. Low Similarity Index between the treated plots and the control vegetation was observed at all visitations. Low similarity was also observed between the above-ground vegetation and the seed bank in all the plots. The study concluded that the weed population observed from the experimental plots showed an increase in species richness and diversity when the plots were left to recover compared to the control plots. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=herbicide" title="herbicide">herbicide</a>, <a href="https://publications.waset.org/abstracts/search?q=index%20of%20similarity" title=" index of similarity"> index of similarity</a>, <a href="https://publications.waset.org/abstracts/search?q=population" title=" population"> population</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20seed%20bank" title=" soil seed bank"> soil seed bank</a>, <a href="https://publications.waset.org/abstracts/search?q=succession" title=" succession"> succession</a> </p> <a href="https://publications.waset.org/abstracts/102703/the-effects-of-different-types-of-herbicides-used-for-lawn-maintenance-on-the-dynamics-of-weeds-in-an-urban-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102703.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">161</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> Effect of Chlorophyll Concentration Variations from Extract of Papaya Leaves on Dye-Sensitized Solar Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eka%20Maulana">Eka Maulana</a>, <a href="https://publications.waset.org/abstracts/search?q=Sholeh%20Hadi%20Pramono"> Sholeh Hadi Pramono</a>, <a href="https://publications.waset.org/abstracts/search?q=Dody%20Fanditya"> Dody Fanditya</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Julius"> M. Julius</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, extract of papaya leaves are used as a natural dye and combined by variations of solvent concentration applied on DSSC (Dye-Sensitized Solar Cell). Indonesian geographic located on the equator line occasions the magnitude of the potential to develop organic solar cells made from extracts of chlorophyll as a substitute for inorganic materials or synthetic dye on DSSC material. Dye serves as absorbing photons which are then converted into electrical energy. A conductive coated glass layer called TCO (Transparent Conductive Oxide) is used as a substrate of electrode. TiO2 nanoparticles as binding dye molecules, redox couple iodide/ tri-iodide as the electrolyte and carbon as the counter electrode in the DSSC are used. TiO2 nanoparticles, organic dyes, electrolytes and counter electrode are arranged and combined with the layered structure of the photo-catalyst absorption layer. Dye absorption measurements using a spectrophotometer at 200-800 nm light spectrum produces a total amount of chlorophyll 80.076 mg/l. The test cell at 7 watt LED light with 5000 lux luminescence were obtained Voc and Isc of 235.5 mV and 14 μA, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DSSC%20%28Dye-Sensitized%20Solar%20Cell%29" title="DSSC (Dye-Sensitized Solar Cell)">DSSC (Dye-Sensitized Solar Cell)</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20dye" title=" natural dye"> natural dye</a>, <a href="https://publications.waset.org/abstracts/search?q=chlorophyll" title=" chlorophyll"> chlorophyll</a>, <a href="https://publications.waset.org/abstracts/search?q=absorption" title=" absorption"> absorption</a> </p> <a href="https://publications.waset.org/abstracts/20852/effect-of-chlorophyll-concentration-variations-from-extract-of-papaya-leaves-on-dye-sensitized-solar-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20852.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">497</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">32</span> Evaluating the Effects of Community Informatics on Sustainable Livelihoods: a Case Model for Rural Communities in Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adebayo%20J.%20Julius">Adebayo J. Julius</a>, <a href="https://publications.waset.org/abstracts/search?q=Oluremi%20N.%20Iluyomade"> Oluremi N. Iluyomade</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Livelihood in Nigeria is a paradox of poverty amidst plenty. The Country is endowed with a good climate for agriculture, naturally growing fruit trees and vegetables, and undomesticated water resources. In spite of all its endowment, Nigeria continues to live in poverty year in year out. Rural communities adopted for this study are Ido, Omi-Adio, Onigambari, Okija and Lambata, 500 questionnaires were administered to solicit information from the respondents. This study focused on comparative analysis of the utilization of community informatics for sustainable livelihoods through agriculture. The idea projected in this study is that small strategic changes in the modus operandi of social informatics can have a significant impact on the sustainability of livelihoods. This paper carefully explored the theories of community informatics and its efficacies in dealing with sustainability issues. This study identified, described and evaluates the roles of community informatics in some sectors of the economy, different analytical tools to benchmark the influence of social informatics in agriculture against what is obtainable in agricultural sectors of the economy were used. It further employed comparative analysis to build a case model for sustainable livelihood in agriculture through community informatics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=informatics" title="informatics">informatics</a>, <a href="https://publications.waset.org/abstracts/search?q=model" title=" model"> model</a>, <a href="https://publications.waset.org/abstracts/search?q=rural%20community" title=" rural community"> rural community</a>, <a href="https://publications.waset.org/abstracts/search?q=livelihood" title=" livelihood"> livelihood</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigeria" title=" Nigeria"> Nigeria</a> </p> <a href="https://publications.waset.org/abstracts/111241/evaluating-the-effects-of-community-informatics-on-sustainable-livelihoods-a-case-model-for-rural-communities-in-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111241.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">136</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">31</span> Empirical Investigation into Climate Change and Climate-Smart Agriculture for Food Security in Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20Julius%20Adebayo">J. Julius Adebayo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this paper is to assess the agro-climatic condition of Ibadan in the rain forest ecological zone of Nigeria, using rainfall pattern and temperature between 1978-2018. Data on rainfall and temperature in Ibadan, Oyo State for a period of 40 years were obtained from Meteorological Section of Forestry Research Institute of Nigeria, Ibadan and Oyo State Meteorology Centre. Time series analysis was employed to analyze the data. The trend revealed that rainfall is decreasing slowly and temperature is averagely increasing year after year. The model for rainfall and temperature are Yₜ = 1454.11-8*t and Yₜ = 31.5995 + 2.54 E-02*t respectively, where t is the time. On this basis, a forecast of 20 years (2019-2038) was generated, and the results showed a further downward trend on rainfall and upward trend in temperature, this indicates persistence rainfall shortage and very hot weather for agricultural practices in the southwest rain forest ecological zone. Suggestions on possible solutions to avert climate change crisis and also promote climate-smart agriculture for sustainable food and nutrition security were also discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=climate%20change" title="climate change">climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=rainfall%20pattern" title=" rainfall pattern"> rainfall pattern</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=time%20series%20analysis" title=" time series analysis"> time series analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20and%20nutrition%20security" title=" food and nutrition security"> food and nutrition security</a> </p> <a href="https://publications.waset.org/abstracts/110921/empirical-investigation-into-climate-change-and-climate-smart-agriculture-for-food-security-in-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110921.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">144</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">30</span> Assessing Justice, Security and Human Rights Violations in Crisis Situations: The Case of Cameroon</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Forbah%20Julius%20Ajamah">Forbah Julius Ajamah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The protection of human rights and respect of the rule of law in Sub-Saharan African is a constant challenge due to ongoing and protracted conflict situations, political instability, shrinking democratic space and allegations of large-scale corruption in some countries. Conflict and/or crisis is most often resulting from constant violations of individual rights, with the risk increasing when many human rights are violated in a systematic or widespread fashion. Violations related to economic, social and cultural rights at times are as significant as violations of civil and political rights. Cameroon a country in Sub-Saharan African, for many years now has been confronted by numerous crises across different regions. Despite measures carried out, it has been reported that lesser and lesser attention has been placed on various conflict/crisis across Cameroon. To reach a common understanding of how both the economic, social and cultural rights has been violated and related impact on the quality of life, this paper evaluates justice, security and human rights violations in the present crisis situations. Without the prevention of human rights violations, wider conflict and/or crisis, will continue to have a negative impact in the lives of the inhabitants. This paper aims at providing evidence to support the fact that effective prevention requires early identification of risks that could allow for preventive and/or mitigatory measures to be designed and implemented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=justice" title="justice">justice</a>, <a href="https://publications.waset.org/abstracts/search?q=security" title=" security"> security</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20rights%20abuses" title=" human rights abuses"> human rights abuses</a>, <a href="https://publications.waset.org/abstracts/search?q=conflicts" title=" conflicts"> conflicts</a>, <a href="https://publications.waset.org/abstracts/search?q=crisis" title=" crisis"> crisis</a> </p> <a href="https://publications.waset.org/abstracts/159002/assessing-justice-security-and-human-rights-violations-in-crisis-situations-the-case-of-cameroon" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159002.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">85</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">29</span> Impact of Zeolite NaY Synthesized from Kaolin on the Properties of Pyrolytic Oil Derived from Used Tire</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julius%20Ilawe%20Osayi">Julius Ilawe Osayi</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Osifo"> Peter Osifo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solid waste disposal, such as used tires is a global challenge as well as energy crisis due to rising energy demand amidst price uncertainty and depleting fossil fuel reserves. Therefore, the effectiveness of pyrolysis as a disposal method that can transform used tires into liquid fuel and other end-products has made the process attractive to researchers. Although used tires have been converted to liquid fuel using pyrolysis, there is the need to improve on the liquid fuel properties. Hence, this paper reports the investigation of zeolite NaY synthesized from kaolin, a locally abundant soil material in the Benin metropolis as a suitable catalyst and its effect on the properties of pyrolytic oil produced from used tires. The pyrolysis process was conducted for a range of 1 to 10 wt.% of catalyst concentration to used tire at a temperature of 600 oC, a heating rate of 15oC/min and particle size of 6mm. Although no significant increase in pyrolytic oil yield was observed compared to the previously investigated non-catalytic pyrolysis of a used tire. However, the Fourier transform infrared (FTIR), Nuclear Magnetic Resonance (NMR); and Gas chromatography-mass spectrometry (GC-MS) characterization results revealed the pyrolytic oil to possess an improved physicochemical and fuel properties alongside valuable industrial chemical species. This confirms the possibility of transforming kaolin into a catalyst suitable for improved fuel properties of the liquid fraction obtainable from thermal cracking of hydrocarbon materials. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=catalytic%20pyrolysis" title="catalytic pyrolysis">catalytic pyrolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=fossil%20fuel" title=" fossil fuel"> fossil fuel</a>, <a href="https://publications.waset.org/abstracts/search?q=kaolin" title=" kaolin"> kaolin</a>, <a href="https://publications.waset.org/abstracts/search?q=pyrolytic%20oil" title=" pyrolytic oil"> pyrolytic oil</a>, <a href="https://publications.waset.org/abstracts/search?q=used%20tyres" title=" used tyres"> used tyres</a>, <a href="https://publications.waset.org/abstracts/search?q=Zeolite%20NaY" title=" Zeolite NaY"> Zeolite NaY</a> </p> <a href="https://publications.waset.org/abstracts/91561/impact-of-zeolite-nay-synthesized-from-kaolin-on-the-properties-of-pyrolytic-oil-derived-from-used-tire" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/91561.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">178</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">28</span> Noise Reduction in Web Data: A Learning Approach Based on Dynamic User Interests</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julius%20Onyancha">Julius Onyancha</a>, <a href="https://publications.waset.org/abstracts/search?q=Valentina%20Plekhanova"> Valentina Plekhanova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the significant issues facing web users is the amount of noise in web data which hinders the process of finding useful information in relation to their dynamic interests. Current research works consider noise as any data that does not form part of the main web page and propose noise web data reduction tools which mainly focus on eliminating noise in relation to the content and layout of web data. This paper argues that not all data that form part of the main web page is of a user interest and not all noise data is actually noise to a given user. Therefore, learning of noise web data allocated to the user requests ensures not only reduction of noisiness level in a web user profile, but also a decrease in the loss of useful information hence improves the quality of a web user profile. Noise Web Data Learning (NWDL) tool/algorithm capable of learning noise web data in web user profile is proposed. The proposed work considers elimination of noise data in relation to dynamic user interest. In order to validate the performance of the proposed work, an experimental design setup is presented. The results obtained are compared with the current algorithms applied in noise web data reduction process. The experimental results show that the proposed work considers the dynamic change of user interest prior to elimination of noise data. The proposed work contributes towards improving the quality of a web user profile by reducing the amount of useful information eliminated as noise. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=web%20log%20data" title="web log data">web log data</a>, <a href="https://publications.waset.org/abstracts/search?q=web%20user%20profile" title=" web user profile"> web user profile</a>, <a href="https://publications.waset.org/abstracts/search?q=user%20interest" title=" user interest"> user interest</a>, <a href="https://publications.waset.org/abstracts/search?q=noise%20web%20data%20learning" title=" noise web data learning"> noise web data learning</a>, <a href="https://publications.waset.org/abstracts/search?q=machine%20learning" title=" machine learning"> machine learning</a> </p> <a href="https://publications.waset.org/abstracts/77482/noise-reduction-in-web-data-a-learning-approach-based-on-dynamic-user-interests" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77482.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">265</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27</span> Economic Valuation of Forest Landscape Function Using a Conditional Logit Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20J.%20Julius">A. J. Julius</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Imoagene"> E. Imoagene</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20A.%20Ganiyu"> O. A. Ganiyu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this study is to estimate the economic value of the services and functions rendered by the forest landscape using a conditional logit model. For this study, attributes and levels of forest landscape were chosen; specifically, attributes include topographical forest type, forest type, forest density, recreational factor (side trip, accessibility of valley), and willingness to participate (WTP). Based on these factors, 48 choices sets with balanced and orthogonal form using statistical analysis system (SAS) 9.1 was adopted. The efficiency of the questionnaire was 6.02 (D-Error. 0.1), and choice set and socio-economic variables were analyzed. To reduce the cognitive load of respondents, the 48 choice sets were divided into 4 types in the questionnaire, so that respondents could respond to 12 choice sets, respectively. The study populations were citizens from seven metropolitan cities including Ibadan, Ilorin, Osogbo, etc. and annual WTP per household was asked by using the interview questionnaire, a total of 267 copies were recovered. As a result, Oshogbo had 0.45, and the statistical similarities could not be found except for urban forests, forest density, recreational factor, and level of WTP. Average annual WTP per household for forest landscape was 104,758 Naira (Nigerian currency) based on the outcome from this model, total economic value of the services and functions enjoyed from Nigerian forest landscape has reached approximately 1.6 trillion Naira. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=economic%20valuation" title="economic valuation">economic valuation</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20cities" title=" urban cities"> urban cities</a>, <a href="https://publications.waset.org/abstracts/search?q=services" title=" services"> services</a>, <a href="https://publications.waset.org/abstracts/search?q=forest%20landscape" title=" forest landscape"> forest landscape</a>, <a href="https://publications.waset.org/abstracts/search?q=logit%20model" title=" logit model"> logit model</a>, <a href="https://publications.waset.org/abstracts/search?q=nigeria" title=" nigeria"> nigeria</a> </p> <a href="https://publications.waset.org/abstracts/110923/economic-valuation-of-forest-landscape-function-using-a-conditional-logit-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110923.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">132</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">26</span> Origanum vulgare as a Possible Modulator of Testicular Endocrine Function in Mice </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eva%20Tvrd%C3%A1">Eva Tvrdá</a>, <a href="https://publications.waset.org/abstracts/search?q=Barbora%20Babe%C4%8Dkov%C3%A1"> Barbora Babečková</a>, <a href="https://publications.waset.org/abstracts/search?q=Michal%20%C4%8Eura%C4%8Dka"> Michal Ďuračka</a>, <a href="https://publications.waset.org/abstracts/search?q=R%C3%B3bert%20Kirchner"> Róbert Kirchner</a>, <a href="https://publications.waset.org/abstracts/search?q=J%C3%BAlius%20%C3%81rvay"> Július Árvay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was designed to assess the <em>in vitro</em> effects of <em>Origanum vulgare</em> L. (oregano) extract on the testicular steroidogenesis. We focused on identifying major biomolecules present in the oregano extract, as well as to investigate its <em>in vitro</em> impact on the secretion of cholesterol, testosterone, dehydroepiandrosterone and androstenedione by murine testicular fragments. The extract was subjected to high performance liquid chromatography (HPLC) which identified cyranosid, daidzein, thymol, rosmarinic and trans-caffeic acid among the predominant biochemical components of oregano. For the <em>in vitro</em> experiments, testicular fragments from 20 sexually mature Institute of Cancer Research (ICR) mice were incubated in the absence (control group) or presence of the oregano extract at selected concentrations (10, 100 and 1000 μg/mL) for 24 h. Cholesterol levels were quantified using photometry and the hormones were assessed by ELISA (Enzyme-Linked Immunosorbent Assay). Our data revealed that the release of cholesterol and androstenedione (but not dehydroepiandrosterone and testosterone) by the testicular fragments was significantly impacted by the oregano extract in a dose-dependent fashion. Supplementation of the extract resulted in a significant decline of cholesterol (P < 0.05 in case of 100 μg/mL; P < 0.01 with respect 100 μg/mL extract), as well as androstenedione (P < 0.01 with respect to 100 and 1000 μg/mL extract). Our results suggest that the biomolecules present in <em>Origanum vulgare</em> L. could exhibit a dose-dependent impact on the secretion of male steroids, playing a role in the regulation of testicular steroidogenesis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mice" title="mice">mice</a>, <a href="https://publications.waset.org/abstracts/search?q=Origanum%20vulgare%20L." title=" Origanum vulgare L."> Origanum vulgare L.</a>, <a href="https://publications.waset.org/abstracts/search?q=steroidogenesis" title=" steroidogenesis"> steroidogenesis</a>, <a href="https://publications.waset.org/abstracts/search?q=testes" title=" testes "> testes </a> </p> <a href="https://publications.waset.org/abstracts/108962/origanum-vulgare-as-a-possible-modulator-of-testicular-endocrine-function-in-mice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108962.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">167</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">25</span> Ecological Implication of Air Pollution From Quarrying and Stone Cutting Industries on Agriculture and Plant Biodiversity Around Quarry Sites in Mpape, Bwari Area Council, FCT, Abuja</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammed%20Rabiu">Muhammed Rabiu</a>, <a href="https://publications.waset.org/abstracts/search?q=Moses%20S.%20Oluyomi"> Moses S. Oluyomi</a>, <a href="https://publications.waset.org/abstracts/search?q=Joshua%20Olorundare"> Joshua Olorundare</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Quarry activities are important to modern day life and the socio-economic development of local communities. Unfortunately, this industry is usually associated with air pollution. To assess the impact of quarry dust on plant biodiversity and agriculture, PM2.5, PM10 and some meteorological parameters were measured using Gas analyzer, handheld thermometer and Multifunction Anemometer (PCE-EM 888) as well as taking a social survey. High amount of particulate matters that exceeded the international standard were recorded at the study locations which include the Julius Berger Quarry and 1km away from the quarry site which serve as the base for the farmlands. The correlation coefficient between the particulate matters with the meteorological parameters of the locations all show a strong relationship with temperature recording a stronger value of 0.952 and 0.931 for PM2.5 and PM10 respectively. Similarly, the coefficient of determination 0.906 and 0.866 shows that temperature has the highest meteorological percentage variation on PM2.5 and PM10. Furthermore, a notable negative impact of quarrying on plant biodiversity and local farm crops are also revealed based on respondents’ results where wide range of local plants were affected with Maize and Azadiracta indica (Neem) been the most with respondent of 31.5% and 27.5%. According to the obtained results, it is highly recommended to develop green belt surrounding the quarrying using pollutant-tolerant trees (usually with broad leaves) in order to restrict spreading of quarrying dust via intercepting, filtering and absorbing pollutants. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=agriculture" title="agriculture">agriculture</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20pollution" title=" air pollution"> air pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=biodiversity" title=" biodiversity"> biodiversity</a>, <a href="https://publications.waset.org/abstracts/search?q=quarry" title=" quarry"> quarry</a> </p> <a href="https://publications.waset.org/abstracts/162505/ecological-implication-of-air-pollution-from-quarrying-and-stone-cutting-industries-on-agriculture-and-plant-biodiversity-around-quarry-sites-in-mpape-bwari-area-council-fct-abuja" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/162505.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">83</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Analysis of Productivity and Poverty Status among Users of Improved Sorghum Varieties in Kano State, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Temitope%20Adefunsho%20Olatoye">Temitope Adefunsho Olatoye</a>, <a href="https://publications.waset.org/abstracts/search?q=Julius%20Olabode%20Elega"> Julius Olabode Elega</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Raising agricultural productivity is an important policy goal for governments and development agencies, and this is central to growth, income distribution, improved food security, and poverty alleviation among practitioners. This study analyzed the productivity and poverty status among users of improved sorghum varieties in Kano State, Nigeria. A multistage sampling technique was adopted in the selection of 131 sorghum farmers who were users of improved sorghum varieties. Data collected were analyzed using both descriptive (frequency distribution and percentage) and inferential (productivity index and FGT model) statistics. The result of the socioeconomic characteristics of the sorghum farmers showed a mean age of 40 years, with about 93.13% of the sorghum farmers being male. Also, as indicated by the result, the majority (82.44%) of the farmers were married, with most of them having qur’anic education with a mean farm size of 3.6 ha, as reported in the study area. Furthermore, the result showed that the mean farming experience of the sorghum farmers in the study area was 19 years, with an average monthly income of about ₦48,794, as reported in the study area. The result of the productivity index showed a ratio of 192,977kg/ha, while the result of poverty status shows that 62.88% were in the non-poor category, 21.21% were poor, and 15.91% were very poor, respectively. The result also showed that the incidence of poverty for sorghum farmers was 16%, indicating that the incidence of poverty was prevalent in the study area. Based on the findings of this study, it was therefore recommended that seed companies should facilitate the spread of improved sorghum varieties as it has an impact on the productivity and poverty status of sorghum farmers in the study area. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Foster%20Greer%20Thorbecke%20model" title="Foster Greer Thorbecke model">Foster Greer Thorbecke model</a>, <a href="https://publications.waset.org/abstracts/search?q=improved%20sorghum%20varieties" title=" improved sorghum varieties"> improved sorghum varieties</a>, <a href="https://publications.waset.org/abstracts/search?q=productivity" title=" productivity"> productivity</a>, <a href="https://publications.waset.org/abstracts/search?q=poverty%20status" title=" poverty status"> poverty status</a> </p> <a href="https://publications.waset.org/abstracts/168408/analysis-of-productivity-and-poverty-status-among-users-of-improved-sorghum-varieties-in-kano-state-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168408.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">73</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">23</span> Academic Leadership Succession Planning Practice in Nigeria Higher Education Institutions: A Case Study of Colleges of Education</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adie">Adie</a>, <a href="https://publications.waset.org/abstracts/search?q=Julius%20Undiukeye"> Julius Undiukeye</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research investigated the practice of academic leadership succession planning in Nigerian higher education institutions, drawing on the lived experiences of the academic staff of the case study institutions. It is multi-case study research that adopts a qualitative research method. Ten participants (mainly academic staff) were used as the study sample. The study was guided by four research questions. Semi-structured interviews and archival information from official documents formed the sources of data. The data collected was analyzed using the Constant Comparative Technique (CCT) to generate empirical insights and facts on the subject of this paper. The following findings emerged from the data analysis: firstly, there was no formalized leadership succession plan in place in the institutions that were sampled for this study; secondly, despite the absence of a formal succession plan, the data indicates that academics believe that succession planning is very significant for institutional survival; thirdly, existing practices of succession planning in the sampled institutions, takes the forms of job seniority ranking, political process and executive fiat, ad-hoc arrangement, and external hiring; and finally, data revealed that there are some barriers to the practice of succession planning, such as traditional higher education institutions’ characteristics (e.g. external talent search, shared governance, diversity, and equality in leadership appointment) and the lack of interest in leadership positions. Based on the research findings, some far-reaching recommendations were made, including the urgent need for the ‘formalization’ of leadership succession planning by the higher education institutions concerned, through the design of an official policy framework. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=academic%20leadership" title="academic leadership">academic leadership</a>, <a href="https://publications.waset.org/abstracts/search?q=succession" title=" succession"> succession</a>, <a href="https://publications.waset.org/abstracts/search?q=planning" title=" planning"> planning</a>, <a href="https://publications.waset.org/abstracts/search?q=higher%20education" title=" higher education"> higher education</a> </p> <a href="https://publications.waset.org/abstracts/153441/academic-leadership-succession-planning-practice-in-nigeria-higher-education-institutions-a-case-study-of-colleges-of-education" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153441.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">143</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">22</span> Implementation of Industrial Ecology Principles in the Production and Recycling of Solar Cells and Solar Modules </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Julius%20Denafas">Julius Denafas</a>, <a href="https://publications.waset.org/abstracts/search?q=Irina%20Kliopova"> Irina Kliopova</a>, <a href="https://publications.waset.org/abstracts/search?q=Gintaras%20Denafas"> Gintaras Denafas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Three opportunities for implementation of industrial ecology principles in the real industrial production of c-Si solar cells and modules are presented in this study. It includes: material flow dematerialisation, product modification and industrial symbiosis. Firstly, it is shown how the collaboration between R&D institutes and industry helps to achieve significant reduction of material consumption by a) refuse from phosphor silicate glass cleaning process and b) shortening of silicon nitride coating production step. Secondly, it was shown how the modification of solar module design can reduce the CO2 footprint for this product and enhance waste prevention. It was achieved by implementing a frameless glass/glass solar module design instead of glass/backsheet with aluminium frame. Such a design change is possible without purchasing new equipment and without loss of main product properties like efficiency, rigidity and longevity. Thirdly, industrial symbiosis in the solar cell production is possible in such case when manufacturing waste (silicon wafer and solar cell breakage) also used solar modules are collected, sorted and supplied as raw-materials to other companies involved in the production chain of c-Si solar cells. The obtained results showed that solar cells produced from recycled silicon can have a comparable electrical parameters like produced from standard, commercial silicon wafers. The above mentioned work was performed at solar cell producer Soli Tek R&D in the frame of H2020 projects CABRISS and Eco-Solar. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=manufacturing" title="manufacturing">manufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=process%20optimisation" title=" process optimisation"> process optimisation</a>, <a href="https://publications.waset.org/abstracts/search?q=recycling" title=" recycling"> recycling</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20cells" title=" solar cells"> solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20modules" title=" solar modules"> solar modules</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20prevention" title=" waste prevention"> waste prevention</a> </p> <a href="https://publications.waset.org/abstracts/97147/implementation-of-industrial-ecology-principles-in-the-production-and-recycling-of-solar-cells-and-solar-modules" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/97147.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">142</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Julius%20%20Sebei&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Julius%20%20Sebei&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div 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