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Search results for: Ugwu Blessing Nkiruka
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</div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Ugwu Blessing Nkiruka</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">64</span> National Agency for Control of HIV/AIDS and International Response to its Scourge in Nigeria, 2000-2010</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ugwu%20Blessing%20Nkiruka">Ugwu Blessing Nkiruka</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper seeks to examine Nigerian National Agency for the control of AIDS (NACA) and international response to the control of HIV/AIDS in Nigeria. The paper adopted the Functionalist theory alongside Liberalism and Idealism, but anchored extensively on functionalism. On the response of HIV/AIDS, Functionalist theory advocated for international corporation of both intergovernmental and non-governmental organisations as the basis for the reduction of the virus. the study adopted secondary source of data i.e journals, articles, newspapers and policy briefs to discuss the reduction of the pandemic (HIV/AIDS).This paper discovered that although HIV/AIDS is a global threat, especially to developing countries where the prevalence rate is still very high, yet international governmental and non-governmental organisation have been able to collaborate with National agencies like NACA in Nigeria and respond speedily through diverse initiatives and action plans to curb the spread of the virus. The study therefore recommends greater awareness on testing and early introduction of antiretroviral therapy, proper screening of blood before transfusion, absolute faithfulness among partners. Similarly, sharing of sharp objects like needles, knives and syringes should be avoided at all cost. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HIV%2FAIDS" title="HIV/AIDS">HIV/AIDS</a>, <a href="https://publications.waset.org/abstracts/search?q=developing%20countries" title=" developing countries"> developing countries</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigeria" title=" Nigeria"> Nigeria</a>, <a href="https://publications.waset.org/abstracts/search?q=international%20organizations" title=" international organizations"> international organizations</a>, <a href="https://publications.waset.org/abstracts/search?q=NACA" title=" NACA"> NACA</a> </p> <a href="https://publications.waset.org/abstracts/137236/national-agency-for-control-of-hivaids-and-international-response-to-its-scourge-in-nigeria-2000-2010" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/137236.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">187</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">63</span> Rice Blessing Ceremony of Thailand and Vietnam: The Relation of Southeast Asia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Patthida%20Bunchavalit">Patthida Bunchavalit</a>, <a href="https://publications.waset.org/abstracts/search?q=Saharot%20Kittimahacharoen"> Saharot Kittimahacharoen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this article is to compare rice blessing ceremony between Thailand and Vietnam. Both countries are located in Southeast Asia where agriculture is the main occupation. As a result of the study, it is found that the rice blessing ceremony of Thai and Vietnamese societies have differences and similarities. A person leading the ceremony is a person who has the highest position in the country. For Thailand, it is the king or royal family member while for Vietnam, it is the president. In Thailand, the ceremony began in Ayutthaya period which derived from Buddhism and Brahmanism ideology. It is annually organized in the beginning of raining season. In Vietnam, it is annually organized in the beginning of spring. The first time it occurred was in Tien Le Monarchy period of Thien Phuc era deriving from Chinese ideology. The differences are ideas, believes, objectives and details of the ceremony. It is, in Thailand, to boost farmer’s morale and to predict the fertility of crops in each year. Additionally, there is a prediction using royal cows. Meanwhile, in Vietnam the purpose is to worship god of weather for seasonal rain and productive harvesting. Therefore, it is presumed that the rice blessing ceremony of Thailand and Vietnam somewhat have similarities in spite of having different origin but are on the same basis of belief. <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=ceremony" title=" ceremony"> ceremony</a>, <a href="https://publications.waset.org/abstracts/search?q=culture" title=" culture"> culture</a>, <a href="https://publications.waset.org/abstracts/search?q=Thailand" title=" Thailand"> Thailand</a>, <a href="https://publications.waset.org/abstracts/search?q=Vietnam" title=" Vietnam"> Vietnam</a> </p> <a href="https://publications.waset.org/abstracts/79322/rice-blessing-ceremony-of-thailand-and-vietnam-the-relation-of-southeast-asia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79322.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">185</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">62</span> Assessment of Cell-Rebuilding Efficacy of Selected Food Plants in the Lungs of Wild Rats Living in a Polluted Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yahaya%20Tajudeen">Yahaya Tajudeen</a>, <a href="https://publications.waset.org/abstracts/search?q=Joy%20Okpuzor"> Joy Okpuzor</a>, <a href="https://publications.waset.org/abstracts/search?q=Tolu%20Ajayi"> Tolu Ajayi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The cell-rebuilding efficacy of four food plants eating as vegetables and spices in Nigeria was assessed in the lungs of wild rats (Rattus rattus) living in a polluted environment. The plants are roselle (Hibiscus sabdarrifa), moringa (Moringa oleifera), ginger (Zingiber officinale) and ugwu (Telfairia occidentalis). Sixty rats were caught from the vicinity of a cement factory in Sagamu, Southwestern-Nigeria and grouped into 6. The control group was administered distilled water, while the test groups were given ethanolic extracts of roselle, moringa, ginger, ugwu and the mixture of the extracts for 180 days. The histopathology of the rats was conducted before and at the end of 180 days extracts administration. Before administering the extracts, the lungs of the rats showed vascular congestion, severe fibrosis and congested alveolus; all which were also observed in the lungs of control rats at the end of the treatment. However, the lungs of rats that were treated with the extracts of the plants showed moderate, mild or no histological damage compared to the control rats. The extract of the mixture of the plants performed best, followed by ginger, ugwu and roselle, respectively. These findings suggest that the food plants contain phytonutrients and phytochemicals, which repaired damaged cells and tissues in the exposed rats. Consequently, the plants could play a role in ameliorating health effects of environmental pollution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=food%20plants" title="food plants">food plants</a>, <a href="https://publications.waset.org/abstracts/search?q=wild%20rats" title=" wild rats"> wild rats</a>, <a href="https://publications.waset.org/abstracts/search?q=lung" title=" lung"> lung</a>, <a href="https://publications.waset.org/abstracts/search?q=histopathology" title=" histopathology"> histopathology</a>, <a href="https://publications.waset.org/abstracts/search?q=fibrosis" title=" fibrosis"> fibrosis</a>, <a href="https://publications.waset.org/abstracts/search?q=cell-rebuilding" title=" cell-rebuilding"> cell-rebuilding</a> </p> <a href="https://publications.waset.org/abstracts/28191/assessment-of-cell-rebuilding-efficacy-of-selected-food-plants-in-the-lungs-of-wild-rats-living-in-a-polluted-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28191.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">367</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">61</span> Occupational Stress, Perceived Fairness, and Organizational Citizenship Behavior among Bank Workers in Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20M.%20Ngbea">K. M. Ngbea</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Ugwu"> F. Ugwu</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20M.%20Uwouku"> J. M. Uwouku</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Atsehe"> P. Atsehe</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Ucho"> A. Ucho</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20N.%20Achakpa-Ikyo"> P. N. Achakpa-Ikyo</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Azende"> P. Azende</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study examined occupational stress, perceived fairness and organizational citizenship behavior among bank workers. The participants were 198 (118) males and (80) female's bank employees from selected banks within Makurdi metropolis and questionnaire were used for data collection. Three hypotheses were tested and it was found that employees with high perception of occupational stress differ significantly from their counterparts at perceived fairness also influenced organizational citizenship behavior.On the other hand, there is no interaction effect of occupational stress and perceived fairness on organizational citizenship behavior. The implication of findings, limitations, recommendations and conclusions were discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=occupational%20stress" title="occupational stress">occupational stress</a>, <a href="https://publications.waset.org/abstracts/search?q=perceived%20fairness" title=" perceived fairness"> perceived fairness</a>, <a href="https://publications.waset.org/abstracts/search?q=organizational%20citizenship" title=" organizational citizenship"> organizational citizenship</a>, <a href="https://publications.waset.org/abstracts/search?q=behavior" title=" behavior"> behavior</a> </p> <a href="https://publications.waset.org/abstracts/15619/occupational-stress-perceived-fairness-and-organizational-citizenship-behavior-among-bank-workers-in-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15619.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">748</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">60</span> Strategic Workplace Security: The Role of Malware and the Threat of Internal Vulnerability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Modesta%20E.%20Ezema">Modesta E. Ezema</a>, <a href="https://publications.waset.org/abstracts/search?q=Christopher%20C.%20Ezema"> Christopher C. Ezema</a>, <a href="https://publications.waset.org/abstracts/search?q=Christian%20C.%20Ugwu"> Christian C. Ugwu</a>, <a href="https://publications.waset.org/abstracts/search?q=Udoka%20F.%20Eze"> Udoka F. Eze</a>, <a href="https://publications.waset.org/abstracts/search?q=Florence%20M.%20Babalola"> Florence M. Babalola</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Some employees knowingly or unknowingly contribute to loss of data and also expose data to threat in the process of getting their jobs done. Many organizations today are faced with the challenges of how to secure their data as cyber criminals constantly devise new ways of attacking the organization’s secret data. However, this paper enlists the latest strategies that must be put in place in order to protect these important data from being attacked in a collaborative work place. It also introduces us to Advanced Persistent Threats (APTs) and how it works. The empirical study was conducted to collect data from the employee in data centers on how data could be protected from malicious codes and cyber criminals and their responses are highly considered to help checkmate the activities of malicious code and cyber criminals in our work places. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=data" title="data">data</a>, <a href="https://publications.waset.org/abstracts/search?q=employee" title=" employee"> employee</a>, <a href="https://publications.waset.org/abstracts/search?q=malware" title=" malware"> malware</a>, <a href="https://publications.waset.org/abstracts/search?q=work%20place" title=" work place"> work place</a> </p> <a href="https://publications.waset.org/abstracts/61588/strategic-workplace-security-the-role-of-malware-and-the-threat-of-internal-vulnerability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/61588.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">382</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">59</span> Reciprocal Interferences in Bilingual English-Igbo Speaking Society: The Implications in Language Pedagogy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ugwu%20Elias%20Ikechukwu">Ugwu Elias Ikechukwu </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Discussions on bilingualism have always dwelt on how the mother tongue interferes with the target language. This interference is considered a serious problem in second language learning. Usually, the interference has been phonological. But the objective of this research is to explore how the target language interferes with the mother tongue. In the case of the Igbo language, it interferes with English mostly at the phonological level while English interferes with Igbo at the realm of vocabulary. The result is a new language \"Engligbo\" which is a hybrid of English and Igbo. The Igbo language spoken by about 25 million people is one of the three most prominent languages in Nigeria. This paper discusses the phenomenal Engligbo, and other implications for Igbo learners of English. The method of analysis is descriptive. A number of recommendations were made that would help teachers handle problems arising from such mutual interferences. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=reciprocal%20interferences" title="reciprocal interferences">reciprocal interferences</a>, <a href="https://publications.waset.org/abstracts/search?q=bilingualism" title=" bilingualism"> bilingualism</a>, <a href="https://publications.waset.org/abstracts/search?q=implications" title=" implications"> implications</a>, <a href="https://publications.waset.org/abstracts/search?q=language%20pedagogy" title=" language pedagogy "> language pedagogy </a> </p> <a href="https://publications.waset.org/abstracts/3835/reciprocal-interferences-in-bilingual-english-igbo-speaking-society-the-implications-in-language-pedagogy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3835.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">398</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">58</span> Investigation of Droplet Size Produced in Two-Phase Gravity Separators</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kul%20Pun">Kul Pun</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20A.%20Hamad"> F. A. Hamad</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Ahmed"> T. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20O.%20Ugwu"> J. O. Ugwu</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Eyers"> J. Eyers</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20Lawson"> G. Lawson</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20A.%20Russell"> P. A. Russell</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Determining droplet size and distribution is essential when determining the separation efficiency of a two/three-phase separator. This paper investigates the effect of liquid flow and oil pad thickness on the droplet size at the lab scale. The findings show that increasing the inlet flow rates of the oil and water results in size reduction of the droplets and increasing the thickness of the oil pad increases the size of the droplets. The data were fitted with a simple Gaussian model, and the parameters of mean, standard deviation, and amplitude were determined. Trends have been obtained for the fitted parameters as a function of the Reynolds number, which suggest a way forward to better predict the starting parameters for population models when simulating separation using CFD packages. The key parameter to predict to fix the position of the Gaussian distribution was found to be the mean droplet size. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=two-phase%20separator" title="two-phase separator">two-phase separator</a>, <a href="https://publications.waset.org/abstracts/search?q=average%20bubble%20droplet" title=" average bubble droplet"> average bubble droplet</a>, <a href="https://publications.waset.org/abstracts/search?q=bubble%20size%20distribution" title=" bubble size distribution"> bubble size distribution</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid-liquid%20phase" title=" liquid-liquid phase"> liquid-liquid phase</a> </p> <a href="https://publications.waset.org/abstracts/152230/investigation-of-droplet-size-produced-in-two-phase-gravity-separators" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152230.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">200</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">57</span> Oncological Consequences of Heavy Metal Deposits in Jos East, Plateau State, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jasini%20Waida">Jasini Waida</a>, <a href="https://publications.waset.org/abstracts/search?q=Usman%20Rilwan"> Usman Rilwan</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20I.%20Ikpughul"> S. I. Ikpughul</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20I.%20Ugwu"> E. I. Ugwu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Carcinogenic substances are those that induce tumours (benign or malignant), increase their incidence or malignancy, or shorten the time of tumour occurrence when they get into the body through inhalation, injection, dermal application, or ingestion. Using X-Ray Fluorescence, this study reveals the accumulation of heavy metals in Jos East. The results of this study showed that the Geo-Accumulation Index (Igeo) of water for different heavy metals decreased in the order of Cd (0.15) > Cr and As (0.03) > Pb (-0.13) > Ni (-0.6). The soil content for different heavy metals decreased in the order of As and Cd (0.4) > Ni, Cr and Pb (0.2). The edible plants for different heavy metals decreased in the order of Cd (0.512) > As (0.25) > Pb (0.23) > Ni (0.01) > Ni (-0.06). 21% of these points are uncontaminated, except for a few points that are found within the uncontaminated to moderately contaminated level. It is possible to conclude that the area is uncontaminated to moderately contaminated, necessitating regulation. Hence, this study can be used as reference data for regulatory bodies like the Nigerian Nuclear Regulatory Authority (NNRA) and the rest. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heavy%20metals" title="heavy metals">heavy metals</a>, <a href="https://publications.waset.org/abstracts/search?q=soil" title=" soil"> soil</a>, <a href="https://publications.waset.org/abstracts/search?q=plants" title=" plants"> plants</a>, <a href="https://publications.waset.org/abstracts/search?q=water" title=" water"> water</a>, <a href="https://publications.waset.org/abstracts/search?q=contamination%20factor" title=" contamination factor"> contamination factor</a> </p> <a href="https://publications.waset.org/abstracts/164092/oncological-consequences-of-heavy-metal-deposits-in-jos-east-plateau-state-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164092.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">56</span> A Software Tool for Computer Forensic Investigation Using Client-Side Web History Visualization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Francisca%20Onaolapo%20Oladipo">Francisca Onaolapo Oladipo</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Afam%20Ugwu"> Peter Afam Ugwu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Records of user activities which are valuable for forensic investigation purposes are provided by web browsers -these records in most cases are not in visual formats that are easily understood, thereby requiring some extra processes. This paper describes the implementation of a software tool for client-side web history visualization providing suitable forensic evidence for investigative purposes. Visual C#, Perl and gnuplot were deployed on Windows Operating System (OS) environment to implement the system and the resulting tool parses and transforms a web browser history into a visual format that enables an investigator to quickly and efficiently explore, understand, and interpret the user online activities in the context of a specific investigation. The system was tested using two forensic cases: the client-side web history files generated by Mozilla Firefox browser was extracted using MozillaHistoryView utility, then parsed and visualized using bar and stacked column charts. From the visual representation, results of user web activities across various productive and non-productive websites were obtained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=history" title="history">history</a>, <a href="https://publications.waset.org/abstracts/search?q=forensics" title=" forensics"> forensics</a>, <a href="https://publications.waset.org/abstracts/search?q=visualization" title=" visualization"> visualization</a>, <a href="https://publications.waset.org/abstracts/search?q=web%20activities" title=" web activities"> web activities</a> </p> <a href="https://publications.waset.org/abstracts/51348/a-software-tool-for-computer-forensic-investigation-using-client-side-web-history-visualization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51348.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">295</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">55</span> Hybrid Molecules: A Promising Approach to Design Potent Antimicrobial and Anticancer Drugs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Blessing%20Atim%20Aderibigbe">Blessing Atim Aderibigbe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A series of amine/ester-linked hybrid compounds containing pharmacophores, such as ursolic acid, oleanolic acid, ferrocene and bisphosphonates, were synthesized in an attempt to develop potent antibacterial and anticancer agents. Their structures were analyzed and confirmed using Nuclear Magnetic Resonance, Fourier Transform Infrared Spectroscopy, and mass spectroscopy. All the synthesized hybrid compounds were evaluated for their antibacterial activities against eleven selected bacterial strains using a serial dilution method. Some of the compounds displayed significant antibacterial activity against most of the bacterial and fungal strains. In addition, the in vitro cytotoxicity of these compounds was also performed against selected cancer cell lines. Some of the compounds were also found to be more active than their parent compounds, revealing the efficacy of designing hybrid molecules using plant-based bioactive agents. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ursolic%20acid" title="ursolic acid">ursolic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20drugs" title=" hybrid drugs"> hybrid drugs</a>, <a href="https://publications.waset.org/abstracts/search?q=oleanolic%20acid" title=" oleanolic acid"> oleanolic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=bisphosphonates" title=" bisphosphonates"> bisphosphonates</a> </p> <a href="https://publications.waset.org/abstracts/168291/hybrid-molecules-a-promising-approach-to-design-potent-antimicrobial-and-anticancer-drugs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168291.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">54</span> Theoretical Analysis of the Solid State and Optical Characteristics of Calcium Sulpide Thin Film</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20Ifeanyi%20Ugwu">Emmanuel Ifeanyi Ugwu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Calcium Sulphide which is one of Chalcogenide group of thin films has been analyzed in this work using a theoretical approach in which a scalar wave was propagated through the material thin film medium deposited on a glass substrate with the assumption that the dielectric medium has homogenous reference dielectric constant term, and a perturbed dielectric function, representing the deposited thin film medium on the surface of the glass substrate as represented in this work. These were substituted into a defined scalar wave equation that was solved first of all by transforming it into Volterra equation of second type and solved using the method of separation of variable on scalar wave and subsequently, Green’s function technique was introduced to obtain a model equation of wave propagating through the thin film that was invariably used in computing the propagated field, for different input wavelengths representing UV, Visible and Near-infrared regions of field considering the influence of the dielectric constants of the thin film on the propagating field. The results obtained were used in turn to compute the band gaps, solid state and optical properties of the thin film. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=scalar%20wave" title="scalar wave">scalar wave</a>, <a href="https://publications.waset.org/abstracts/search?q=dielectric%20constant" title=" dielectric constant"> dielectric constant</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20sulphide" title=" calcium sulphide"> calcium sulphide</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20state" title=" solid state"> solid state</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20properties" title=" optical properties"> optical properties</a> </p> <a href="https://publications.waset.org/abstracts/143030/theoretical-analysis-of-the-solid-state-and-optical-characteristics-of-calcium-sulpide-thin-film" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143030.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">118</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">53</span> An Improved Image Steganography Technique Based on Least Significant Bit Insertion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Olaiya%20Folorunsho">Olaiya Folorunsho</a>, <a href="https://publications.waset.org/abstracts/search?q=Comfort%20Y.%20Daramola"> Comfort Y. Daramola</a>, <a href="https://publications.waset.org/abstracts/search?q=Joel%20N.%20Ugwu"> Joel N. Ugwu</a>, <a href="https://publications.waset.org/abstracts/search?q=Lawrence%20B.%20Adewole"> Lawrence B. Adewole</a>, <a href="https://publications.waset.org/abstracts/search?q=Olufisayo%20S.%20Ekundayo"> Olufisayo S. Ekundayo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In today world, there is a tremendous rise in the usage of internet due to the fact that almost all the communication and information sharing is done over the web. Conversely, there is a continuous growth of unauthorized access to confidential data. This has posed a challenge to information security expertise whose major goal is to curtail the menace. One of the approaches to secure the safety delivery of data/information to the rightful destination without any modification is steganography. Steganography is the art of hiding information inside an embedded information. This research paper aimed at designing a secured algorithm with the use of image steganographic technique that makes use of Least Significant Bit (LSB) algorithm for embedding the data into the bit map image (bmp) in order to enhance security and reliability. In the LSB approach, the basic idea is to replace the LSB of the pixels of the cover image with the Bits of the messages to be hidden without destroying the property of the cover image significantly. The system was implemented using C# programming language of Microsoft.NET framework. The performance evaluation of the proposed system was experimented by conducting a benchmarking test for analyzing the parameters like Mean Squared Error (MSE) and Peak Signal to Noise Ratio (PSNR). The result showed that image steganography performed considerably in securing data hiding and information transmission over the networks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=steganography" title="steganography">steganography</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20steganography" title=" image steganography"> image steganography</a>, <a href="https://publications.waset.org/abstracts/search?q=least%20significant%20bits" title=" least significant bits"> least significant bits</a>, <a href="https://publications.waset.org/abstracts/search?q=bit%20map%20image" title=" bit map image"> bit map image</a> </p> <a href="https://publications.waset.org/abstracts/57080/an-improved-image-steganography-technique-based-on-least-significant-bit-insertion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57080.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">266</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">52</span> Practical Guidelines for Utilizing WipFrag Software to Assess Oversize Blast Material Using Both Orthomosaic and Digital Images</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Blessing%20Olamide%20Taiwo">Blessing Olamide Taiwo</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrew%20Palangio"> Andrew Palangio</a>, <a href="https://publications.waset.org/abstracts/search?q=Chirag%20Savaliya"> Chirag Savaliya</a>, <a href="https://publications.waset.org/abstracts/search?q=Jenil%20Patel"> Jenil Patel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Oversized material resulting from blasting presents a notable drawback in the transportation of run-off-mine material due to increased expenses associated with handling, decreased efficiency in loading, and greater wear on digging equipment. Its irregular size and weight demand additional resources and time for secondary breakage, impacting overall productivity and profitability. This paper addresses the limitations of interpreting image analysis software results and applying them to the assessment of blast-generated oversized materials. This comprehensive guide utilizes both ortho mosaic and digital photos to provide critical approaches for optimizing fragmentation analysis and improving decision-making in mining operations. It briefly covers post-blast assessment, blast block heat map interpretation, and material loading decision-making recommendations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blast%20result%20assessment" title="blast result assessment">blast result assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=WipFrag" title=" WipFrag"> WipFrag</a>, <a href="https://publications.waset.org/abstracts/search?q=oversize%20identification" title=" oversize identification"> oversize identification</a>, <a href="https://publications.waset.org/abstracts/search?q=orthomosaic%20images" title=" orthomosaic images"> orthomosaic images</a>, <a href="https://publications.waset.org/abstracts/search?q=production%20optimization" title=" production optimization"> production optimization</a> </p> <a href="https://publications.waset.org/abstracts/187904/practical-guidelines-for-utilizing-wipfrag-software-to-assess-oversize-blast-material-using-both-orthomosaic-and-digital-images" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/187904.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">39</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">51</span> Methods of Categorizing Architectural Technical Debt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Blessing%20Igbadumhe">Blessing Igbadumhe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The continuous long- and short-term delivery of value to customers continues to be the overarching objective of software organizations. Software engineering professionals and organizations face challenges in the maintenance and evolution of software as a result of architectural, technical debt. The issues of architectural, technical debt continue to receive a significant amount of attention because of its important impact on successful system implementation. The cost of doing nothing as far as architectural, technical debt is concerned can be significant both in financial terms and impacts on customers. Different architectural, technical debt issues exist, and this qualitative research design reviewed existing literature on the subject to identify and categorize them. This research intends to contribute to the existing bludgeoning body of knowledge on categorizations and descriptive model of technical debt related issues related to system architecture. The results identify the most common characteristics of architectural and technical debt categories. Raising awareness of the intricacies of architectural and technical debt helps technology stakeholders reduce negative consequences and increase the system success rate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=architecture" title="architecture">architecture</a>, <a href="https://publications.waset.org/abstracts/search?q=categorizing%20TD" title=" categorizing TD"> categorizing TD</a>, <a href="https://publications.waset.org/abstracts/search?q=system%20design" title=" system design"> system design</a>, <a href="https://publications.waset.org/abstracts/search?q=technical%20debt" title=" technical debt"> technical debt</a> </p> <a href="https://publications.waset.org/abstracts/161734/methods-of-categorizing-architectural-technical-debt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161734.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">91</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> Theoretical Analysis of the Optical and Solid State Properties of Thin Film</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=E.%20I.%20Ugwu">E. I. Ugwu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Theoretical analysis of the optical and Solid State properties of ZnS thin film using beam propagation technique in which a scalar wave is propagated through the material thin film deposited on a substrate with the assumption that the dielectric medium is section into a homogenous reference dielectric constant term, and a perturbed dielectric term, representing the deposited thin film medium is presented in this work. These two terms, constitute arbitrary complex dielectric function that describes dielectric perturbation imposed by the medium of for the system. This is substituted into a defined scalar wave equation in which the appropriate Green’s Function was defined on it and solved using series technique. The green’s value obtained from Green’s Function was used in Dyson’s and Lippmann Schwinger equations in conjunction with Born approximation method in computing the propagated field for different input regions of field wavelength during which the influence of the dielectric constants and mesh size of the thin film on the propagating field were depicted. The results obtained from the computed field were used in turn to generate the data that were used to compute the band gaps, solid state and optical properties of the thin film such as reflectance, Transmittance and reflectance with which the band gap obtained was found to be in close approximate to that of experimental value. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=scalar%20wave" title="scalar wave">scalar wave</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20and%20solid%20state%20properties" title=" optical and solid state properties"> optical and solid state properties</a>, <a href="https://publications.waset.org/abstracts/search?q=thin%20film" title=" thin film"> thin film</a>, <a href="https://publications.waset.org/abstracts/search?q=dielectric%20medium" title=" dielectric medium"> dielectric medium</a>, <a href="https://publications.waset.org/abstracts/search?q=perturbation" title=" perturbation"> perturbation</a>, <a href="https://publications.waset.org/abstracts/search?q=Lippmann%20Schwinger%20equations" title=" Lippmann Schwinger equations"> Lippmann Schwinger equations</a>, <a href="https://publications.waset.org/abstracts/search?q=Green%E2%80%99s%20Function" title=" Green’s Function"> Green’s Function</a>, <a href="https://publications.waset.org/abstracts/search?q=propagation" title=" propagation"> propagation</a> </p> <a href="https://publications.waset.org/abstracts/2042/theoretical-analysis-of-the-optical-and-solid-state-properties-of-thin-film" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2042.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">438</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> Classify Land Use/Cover Change and Its Impact on Soil Erosion Using GIS from 2005 to 2015 in Nzhelele Valley Limpopo Province, South Africa</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Blessing%20Mavhuru">Blessing Mavhuru</a>, <a href="https://publications.waset.org/abstracts/search?q=Nthaduleni%20Nethengwe"> Nthaduleni Nethengwe</a>, <a href="https://publications.waset.org/abstracts/search?q=Hector%20Chikoore"> Hector Chikoore</a>, <a href="https://publications.waset.org/abstracts/search?q=Onyango%20Beneah%20Daniel%20Odhiambo"> Onyango Beneah Daniel Odhiambo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main objective of this study was to classify land use/cover and how it has changed in Nzhelele Valley Limpopo Province, South Africa. The study aimed to identify and analyse the types of land use/cover in the years 2005, 2010, and 2015 with a view to assess the impact on soil erosion over time. Using GIS, the changes within land use/cover were assessed through the classification of satellite images. The study area was classified into four major land cover/use classes, which are vegetation, gravel road, built up land and agricultural fields. Over the period 2005-2015 the resultant land use/cover demonstrated (i) a significant increase (12%) for vegetation cover, (ii) a significant decrease in agriculture (16%) land use/cover, (iii) increase in built-up land (1%), as well as (iv) an increase in gravel roads (3%). This study envisages assisting policy makers in decision making on land use management for Nzhelele Valley. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=land%20use" title="land use">land use</a>, <a href="https://publications.waset.org/abstracts/search?q=land%20cover" title=" land cover"> land cover</a>, <a href="https://publications.waset.org/abstracts/search?q=change" title=" change"> change</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20erosion" title=" soil erosion"> soil erosion</a> </p> <a href="https://publications.waset.org/abstracts/110038/classify-land-usecover-change-and-its-impact-on-soil-erosion-using-gis-from-2005-to-2015-in-nzhelele-valley-limpopo-province-south-africa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110038.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">251</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> Evidence from the Ashanti Region in Ghana: A Correlation Between Principal Instructional Leadership and School Performance in Senior High Schools</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Blessing%20Dwumah%20Manu">Blessing Dwumah Manu</a>, <a href="https://publications.waset.org/abstracts/search?q=Dawn%20Wallin"> Dawn Wallin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to explore school principal instructional leadership capabilities (Robinson, 2010) that support school performance in senior high schools in Ghana’s Northern Region. It explores the ways in which leaders (a) use deep leadership content knowledge to (b) solve complex school-based problems while (c) building relational trust with staff, parents, and students as they engage in the following instructional leadership dimensions: establishing goals and expectations; resourcing strategically; ensuring quality teaching; leading teacher learning and development and ensuring an orderly and safe environment (Patuawa et al, 2013). The proposed research utilizes a constructivist approach to explore the experiences of 18 school representatives (including principals, deputy principals, department heads, teachers, parents, and students) through an interview method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=instructional%20leadership" title="instructional leadership">instructional leadership</a>, <a href="https://publications.waset.org/abstracts/search?q=leadership%20content%20knowledge" title=" leadership content knowledge"> leadership content knowledge</a>, <a href="https://publications.waset.org/abstracts/search?q=solving%20complex%20problems" title=" solving complex problems"> solving complex problems</a>, <a href="https://publications.waset.org/abstracts/search?q=building%20relational%20trust%20and%20school%20performance" title=" building relational trust and school performance"> building relational trust and school performance</a> </p> <a href="https://publications.waset.org/abstracts/167970/evidence-from-the-ashanti-region-in-ghana-a-correlation-between-principal-instructional-leadership-and-school-performance-in-senior-high-schools" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167970.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">107</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> The Context of Human Rights in a Poverty-Stricken Africa: A Reflection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ugwu%20Chukwuka%20E.">Ugwu Chukwuka E.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The African context of human right instruments as recognized today can be traced to Africa’s relationship with the Western World. A significant preponderance of these instruments are found in both colonial and post colonial statutes as the colonial laws, the post colonial legal documents as constitutions or Africa’s adherence to relevant international instruments on human rights as the Universal Declaration of Human Rights (1948) and the African Charter on Human and Peoples’ Rights (1981). In spite of all these human rights instruments inherent in the African continent, it is contended in this paper that, these Western-oriented notion of human rights, emphasizes rights that hardly meets the current needs of contemporary African citizens. Adopting a historical research methodology, this study interrogates the dynamics of the African poverty context in relation to the implementation of human rights instruments in the continent. In this vein, using human rights and poverty scenarios from one Anglophone (Uganda) and one Francophone (Senegal) countries in Africa, the study hypothesized that, majority of Africans are not in a historical condition for the realization of these rights. The raison d’etre for this claim emerges from the fact that, the present generations of African hoi polloi are inundated with extensive powerlessness, ignorance, diseases, hunger and overall poverty that emasculates their interest in these rights instruments. In contrast, the few Africans who have access to the enjoyment of these rights in the continent hardly needs these instruments, as their power and resources base secures them that. The paper concludes that the stress of African states and stakeholders on African affairs should concentrated significantly, on the alleviation of the present historical poverty squalor of Africans, which when attended to, enhances the realization of human right situations in the continent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Africa" title="Africa">Africa</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=poverty" title=" poverty"> poverty</a>, <a href="https://publications.waset.org/abstracts/search?q=western%20world" title=" western world"> western world</a> </p> <a href="https://publications.waset.org/abstracts/18658/the-context-of-human-rights-in-a-poverty-stricken-africa-a-reflection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18658.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">439</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> Scientific Interpretation of “Fertilizing Winds” Mentioned in Verse 15:22 of Al-Quran</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Md.%20Mamunur%20Rashid">Md. Mamunur Rashid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Allah (SWT) bestowed us with the Divine blessing, providing the wonderful source of water as stated in verse 15:22 of Al-Quran. Arabic “Ar-Riaaha Lawaaqiha (ٱلرِّيَـٰحَ لَوَٰقِحَ)” of this verse is translated as “fertilizing winds.” The “fertilizing winds” literally, refer the winds of having the roles: to fertilize something similar to the “zygotes” in humans and animals (formation of clouds in the sky in this case); to produce fertilizers for the plants, crops, etc.; and to pollinate the plants. In this paper, these roles of “fertilizing winds” have been validated by presenting the modern knowledge of science in this regard. Existing interpretations are mostly focused on the “formation of clouds in the sky” while few of them mention about the pollination of trees. However, production of fertilizers, in this regard, has not been considered by any translator or interpreter. It has been observed that the winds contain, the necessary components of forming the clouds; the necessary components of producing the fertilizers; and the necessary components to pollinate the plants. The Science of Meteorology gives us the clear understanding of the formation of clouds. Moreover, we know that the lightning bolts breaks the nitrogen molecules of winds and the water molecules of vapor to form fertilizers. Pollination is a common role of winds in plants fertilization. All the scientific phenomena presented here give us the better interpretations of “fertilizing winds.” <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Al-Quran" title="Al-Quran">Al-Quran</a>, <a href="https://publications.waset.org/abstracts/search?q=fertilizing%20winds" title=" fertilizing winds"> fertilizing winds</a>, <a href="https://publications.waset.org/abstracts/search?q=meteorology" title=" meteorology"> meteorology</a>, <a href="https://publications.waset.org/abstracts/search?q=scientific" title=" scientific"> scientific</a> </p> <a href="https://publications.waset.org/abstracts/173739/scientific-interpretation-of-fertilizing-winds-mentioned-in-verse-1522-of-al-quran" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/173739.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">120</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> Physicochemical Properties and Toxicity Studies on a Lectin from the Bulb of Dioscorea bulbifera</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Uchenna%20Nkiruka%20Umeononihu">Uchenna Nkiruka Umeononihu</a>, <a href="https://publications.waset.org/abstracts/search?q=Adenike%20Kuku"> Adenike Kuku</a>, <a href="https://publications.waset.org/abstracts/search?q=Oludele%20Odekanyin"> Oludele Odekanyin</a>, <a href="https://publications.waset.org/abstracts/search?q=Olubunmi%20Babalola"> Olubunmi Babalola</a>, <a href="https://publications.waset.org/abstracts/search?q=Femi%20Agboola"> Femi Agboola</a>, <a href="https://publications.waset.org/abstracts/search?q=Rapheal%20Okonji"> Rapheal Okonji</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, a lectin from the bulb of Dioscorea bulbifera was purified, characterised, and its acute and sub-acute toxicity was investigated with a view to evaluate its toxic effects in mice. The protein from the bulb was extracted by homogenising 50 g of the bulb in 500 ml of phosphate buffered saline (0.025 M) of pH 7.2, stirred for 3 hr, and centrifuged at the speed of 3000 rpm. Blood group and sugar specificity assays of the crude extract were determined. The lectin was purified in a two-step procedure- gel filtration on Sephadex G-75 and affinity chromatography on Sepharose 4-B arabinose. The degree of purity of the purified lectin was ascertained by SDS-polyacrylamide gel electrophoresis. Detection of covalently bound carbohydrate was carried out with Periodic Acid-Schiffs (PAS) reagent staining technique. Effects of temperature, pH, and EDTA on the lectin were carried out using standard methods. This was followed by acute toxicity studies via oral and subcutaneous routes using mice. The animals were monitored for mortality and signs of toxicity. The sub-acute toxicity studies were carried out using rats. Different concentrations of the lectin were administered twice daily for 5 days via the subcutaneous route. The animals were sacrificed on the sixth day; blood samples and liver tissues were collected. Biochemical assays (determination of total protein, direct bilirubin, Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), catalase (CAT), and superoxide dismutase (SOD)) were carried out on the serum and liver homogenates. The collected organs (heart, liver, kidney, and spleen) were subjected to histopathological analysis. The results showed that lectin from the bulbs of Dioscorea bulbifera agglutinated non-specifically the erythrocytes of the human ABO system as well as rabbit erythrocytes. The haemagglutinating activity was strongly inhibited by arabinose and dulcitol with minimum inhibitory concentrations of 0.781 and 6.25, respectively. The lectin was purified to homogeneity with native and subunit molecular weights of 56,273 and 29,373 Daltons, respectively. The lectin was thermostable up to 30 0C and lost 25 %, 33.3 %, and 100 % of its heamagglutinating activity at 40°C, 50°C, and 60°C, respectively. The lectin was maximally active at pH 4 and 5 but lost its total activity at pH eight, while EDTA (10 mM) had no effect on its haemagglutinating activity. PAS reagent staining showed that the lectin was not a glycoprotein. The sub-acute studies on rats showed elevated levels of ALT, AST, serum bilirubin, total protein in serum and liver homogenates suggesting damage to liver and spleen. The study concluded that the aerial bulb of D. bulbifera lectin was non-specific in its heamagglutinating activity and dimeric in its structure. The lectin shared some physicochemical characteristics with lectins from other Dioscorecea species and was moderately toxic to the liver and spleen of treated animals. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dioscorea%20bulbifera" title="Dioscorea bulbifera">Dioscorea bulbifera</a>, <a href="https://publications.waset.org/abstracts/search?q=heamagglutinin" title=" heamagglutinin"> heamagglutinin</a>, <a href="https://publications.waset.org/abstracts/search?q=lectin" title=" lectin"> lectin</a>, <a href="https://publications.waset.org/abstracts/search?q=toxicity" title=" toxicity"> toxicity</a> </p> <a href="https://publications.waset.org/abstracts/130539/physicochemical-properties-and-toxicity-studies-on-a-lectin-from-the-bulb-of-dioscorea-bulbifera" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/130539.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">127</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> Influence of Leadership Tenure and Succession on Institutional Goal Attainment in the University of Ibadan, Nigeria (2006-2015)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ismial%20A.%20Raji">Ismial A. Raji</a>, <a href="https://publications.waset.org/abstracts/search?q=Blessing%20Egbezieme%20Oladejo"> Blessing Egbezieme Oladejo</a>, <a href="https://publications.waset.org/abstracts/search?q=Babatunde%20Kasim%20Oladele"> Babatunde Kasim Oladele </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study investigated the influence of leadership succession and tenure on goal attainment in the University of Ibadan. Leadership styles, tenure politics, organization succession, leadership succession, goal attainment in terms of research, teaching and public services were considered. The study adopted a descriptive survey design. The population of the study was 250 consisting 90 academic staff, 100 Senior Non-Teaching Staff and 60 Junior Non-Teaching Staff. Questionnaire was the instrument used to collect data. The instrument reliability coefficient was 0.88. Data collected were analysed with descriptive statistics. The result revealed that a significant relationship exist between leadership succession, tenure and goal attainment (r= .648, 0.466 and 0.479p< .0.5) Also, There was no statistical significant interaction between the effects of leadership tenure and leadership succession on goal attainment, F (38, 131) = 1.356, p = .104. The main influence of the independent variables on goal attainment were significant at F (24, 131) = 1.682, p=.034 and F (26, 131) = 2.182, p=.002. The study concluded that leadership succession and tenure are key factors for goal attainment in the University of Ibadan. The study recommended that an effective leadership succession and tenure processes should be maintained and sustained by higher institutions of learning. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=leadership%20tenure" title="leadership tenure">leadership tenure</a>, <a href="https://publications.waset.org/abstracts/search?q=style" title=" style"> style</a>, <a href="https://publications.waset.org/abstracts/search?q=succession" title=" succession"> succession</a>, <a href="https://publications.waset.org/abstracts/search?q=institutional%20goal" title=" institutional goal"> institutional goal</a> </p> <a href="https://publications.waset.org/abstracts/99875/influence-of-leadership-tenure-and-succession-on-institutional-goal-attainment-in-the-university-of-ibadan-nigeria-2006-2015" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/99875.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">256</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> Impact Assessment of Information Communication, Network Providers, Teledensity, and Consumer Complaints on Gross Domestic Products</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Essang%20Anwana%20Onuntuei">Essang Anwana Onuntuei</a>, <a href="https://publications.waset.org/abstracts/search?q=Chinyere%20Blessing%20Azunwoke"> Chinyere Blessing Azunwoke</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study used secondary data from foreign and local organizations to explore major challenges and opportunities abound in Information Communication. The study aimed at exploring the tie between tele density (network coverage area) and the number of network subscriptions, probing if the degree of consumer complaints varies significantly among network providers, and assessing if network subscriptions do significantly influence the sector’s GDP contribution. Methods used for data analysis include Pearson product-moment correlation and regression analysis, and the Analysis of Variance (ANOVA) as well. At a two-tailed test of 0.05 confidence level, the results of findings established about 85.6% of network subscriptions were explained by tele density (network coverage area), and the number of network subscriptions; Consumer Complaints’ degree varied significantly among network providers as 80.158291 (F calculated) > 3.490295 (F critical) with very high confidence associated p-value = 0.000000 which is < 0.05; and finally, 65% of the nation’s GDP was explained by network subscription to show a high association. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tele%20density" title="tele density">tele density</a>, <a href="https://publications.waset.org/abstracts/search?q=subscription" title=" subscription"> subscription</a>, <a href="https://publications.waset.org/abstracts/search?q=network%20coverage" title=" network coverage"> network coverage</a>, <a href="https://publications.waset.org/abstracts/search?q=information%20communication" title=" information communication"> information communication</a>, <a href="https://publications.waset.org/abstracts/search?q=consumer" title=" consumer"> consumer</a> </p> <a href="https://publications.waset.org/abstracts/188468/impact-assessment-of-information-communication-network-providers-teledensity-and-consumer-complaints-on-gross-domestic-products" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/188468.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">43</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> Development and in vitro Evaluation of Polymer-Drug Conjugates Containing Potentiating Agents for Combination Therapy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Blessing%20A.%20Aderibigbe">Blessing A. Aderibigbe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Combination therapy is a treatment approach that is used to prevent the emergence of drug resistance. This approach is used for the treatment of many chronic and infectious diseases. Potentiating agents are currently explored in combination therapy, resulting in excellent therapeutic outcomes. Breast cancer and malaria are two chronic conditions responsible globally for high death rates. In this research, a class of polymer-drug conjugates containing potentiating agents with either antimalarial or anticancer drugs were prepared by Michael Addition Polymerization reaction and ring-opening polymerization reaction. Conjugation of potentiating agents with bioactive compounds into the polymers resulted in conjugates with good water solubility, highly selective and non-toxic. In vitro cytotoxicity and in vitro antiplasmodial evaluation on the conjugates revealed that the conjugates were more effective when compared to the free drugs. The drug release studies further showed that the release profile of the drugs from the conjugates was sustained. The findings revealed the potential of polymer-drug conjugates to overcome drug toxicity and drug resistance, which is common with the currently used antimalarial and anticancer drugs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anticancer" title="anticancer">anticancer</a>, <a href="https://publications.waset.org/abstracts/search?q=antimalarials" title=" antimalarials"> antimalarials</a>, <a href="https://publications.waset.org/abstracts/search?q=combination%20therapy" title=" combination therapy"> combination therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=polymer-drug%20conjugates" title=" polymer-drug conjugates"> polymer-drug conjugates</a> </p> <a href="https://publications.waset.org/abstracts/111039/development-and-in-vitro-evaluation-of-polymer-drug-conjugates-containing-potentiating-agents-for-combination-therapy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111039.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">133</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> Education as a Global Business: An Overview of the Growth in International Students</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chinonso%20Jude%20Ugwu">Chinonso Jude Ugwu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study examines education as a global business, primarily focusing on the boom of college students worldwide. It adopts a mixed-technique approach, using primary and secondary data sources. Primary data was obtained using questionnaires and interviews focusing on international college students, academic staff, and recruitment corporations from pre-determined universities in the United States, the United Kingdom, and Australia. The secondary information was collected from relevant literature, professional reports, and databases. The study ascertained that the boom in worldwide college students is a huge trend within the training enterprise, arising primarily from the growing call for better education worldwide. The studies additionally found that different factors are responsible for the decision of international students to consider studying abroad, such as high schooling satisfaction, cultural exposure, professional opportunities, and the popularity of universities. Furthermore, the study highlights the challenges college students face worldwide, including economic difficulties, social and cultural adjustments, and visa regulations. Based on the findings, the study concludes that Education as a Global Business is a profitable enterprise with substantial potential. However, universities and governments should handle global college students’ demanding situations by creating welcoming surroundings promoting diversity and inclusivity. The study recommends that universities put money into programs and offerings that assist worldwide college students’ welfare. Governments should ease visa regulations to inspire more extraordinary worldwide college students to observe abroad. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=education" title="education">education</a>, <a href="https://publications.waset.org/abstracts/search?q=business" title=" business"> business</a>, <a href="https://publications.waset.org/abstracts/search?q=profitability" title=" profitability"> profitability</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20students" title=" global students"> global students</a> </p> <a href="https://publications.waset.org/abstracts/166820/education-as-a-global-business-an-overview-of-the-growth-in-international-students" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166820.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">74</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> Investigation of Stress and Its Effects on Health Workers in Federal Medical Centres in Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chisom%20N.%20Nwaigwe">Chisom N. Nwaigwe</a>, <a href="https://publications.waset.org/abstracts/search?q=Blessing%20N.%20Egbulefu"> Blessing N. Egbulefu</a>, <a href="https://publications.waset.org/abstracts/search?q=Angela%20Uwakwem"> Angela Uwakwem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A study on Stress and its’ effect on the health of workers in Federal Medical Centres in Nigeria is presented. The aim is to evaluate how much stress related hazards health workers in our tertiary health institutions are exposed to and to create awareness and reduce the rate at which stress affect the health of the working population in Nigeria, using workers in Federal Medical Centre, Umuahia as a case study. The descriptive survey design was adopted with the aid of 100 questionnaires delivered to the respondents in order to obtain first-hand information. From the findings, the major causes of stress were identified as inadequate staffing, unresolved family problems and psychological/cultural factors like the return of a lactating mother to work after three months post-delivery. The effects of stress on the workers were identified as hypertension, poor job performances, depression, asthma, and peptic ulcers. The study recommended instituting counseling units for stress management, holding seminars on stress management and increasing the salary scale (remuneration) and proper roster planning as solutions to stress reduction in our hospitals. This study is important to management in planning staffing, roaster, and a rehabilitation programme for her staff. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stress" title="stress">stress</a>, <a href="https://publications.waset.org/abstracts/search?q=causes" title=" causes"> causes</a>, <a href="https://publications.waset.org/abstracts/search?q=effects" title=" effects"> effects</a>, <a href="https://publications.waset.org/abstracts/search?q=workers" title=" workers"> workers</a> </p> <a href="https://publications.waset.org/abstracts/21457/investigation-of-stress-and-its-effects-on-health-workers-in-federal-medical-centres-in-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21457.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">474</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> Synthesis and Study of Properties of Polyaniline/Nickel Sulphide Nanocomposites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Okpaneje%20Onyinye%20Theresa">Okpaneje Onyinye Theresa</a>, <a href="https://publications.waset.org/abstracts/search?q=Ugwu%20Laeticia%20Udodiri"> Ugwu Laeticia Udodiri</a>, <a href="https://publications.waset.org/abstracts/search?q=Okereke%20Ngozi%20Agatha"> Okereke Ngozi Agatha</a>, <a href="https://publications.waset.org/abstracts/search?q=Okoli%20Nonso%20Livinus"> Okoli Nonso Livinus</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work is on the synthesis and study of the optical characterization of polyaniline/nickel sulphide nanocomposite. Polyaniline (PANI) and nickel sulphide (NiS) nanoparticles were synthesized by oxidative chemical polymerization and sol-gel method. The polyaniline nickel sulphide nanocomposites with various concentrations of NiS were synthesized by in-situ polymerization of aniline monomer. In each case, the nickel sulphide nanoparticles were uniformly dispersed in the aniline hydrochloride before the initiation of oxidative chemical polymerization using ammonium persulphate. The samples formed were subjected to optical characterization using an ultraviolet (UV)-visible light (VIS) spectrophotometer (model: 756S UV – VIS). Optical analysis of the synthesized nanoparticles and nanocomposites showed absorption of radiation within VIS regions. The Tauc model was used to obtain the optical band gap. Energy band gap values of PANI and NiS were found to be 2.50 eV and 1.95 eV, respectively. PANI/NiSnanocomposites has an energy band gap that decreased from 2.25 eV to 1.90 eV as the amount of NiS increased (from 0.5g to 2.0g). These optical results showed that these nanocomposites are potential materials to be considered in solar cells and optoelectronics devices. The structural analysis confirmed the formation of polyaniline and hexagonal nickel sulphide with an average crystallite size of 25.521 nm, while average crystallite sizes of PANI/NiSnanocomposites ranged from 19.458 nm to 25.108 nm. Average particle sizes obtained from the SEM images ranged from 23.24 nm to 51.88 nm. Compositional results confirmed the presence of desired elements that made up the nanoparticles and nanocomposites. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=polyaniline" title="polyaniline">polyaniline</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20sulphide" title=" nickel sulphide"> nickel sulphide</a>, <a href="https://publications.waset.org/abstracts/search?q=polyaniline-nickel%20sulphide%20nanocomposite" title=" polyaniline-nickel sulphide nanocomposite"> polyaniline-nickel sulphide nanocomposite</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20characterization" title=" optical characterization"> optical characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=structural%20analysis" title=" structural analysis"> structural analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=morphological%20properties" title=" morphological properties"> morphological properties</a>, <a href="https://publications.waset.org/abstracts/search?q=compositional%20properties" title=" compositional properties"> compositional properties</a> </p> <a href="https://publications.waset.org/abstracts/153743/synthesis-and-study-of-properties-of-polyanilinenickel-sulphide-nanocomposites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153743.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">114</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> Barriers to the Uptake of Technology in the Quantity Surveying Industry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mnisi%20Blessing">Mnisi Blessing</a>, <a href="https://publications.waset.org/abstracts/search?q=Christopher%20Amoah"> Christopher Amoah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Purpose: The usage of modern technology is widespread in industrialised nations. The issue still pertains to developing countries since they struggle to use technology in the building sector. The study aims to identify the barriers to technology usage in quantity surveying firms. Methodology: Quantity Surveyors were interviewed via Microsoft teams due to the dispersed nature of the participants. However, where the interview was not possible, the interview guide was emailed to the participants to fill in. In all, 12 participants were interviewed out of the 25 participants contacted. The data received were analysed using the content analysis process. Findings: The study's findings demonstrate that quantity surveyors have access to a wide range of technology that significantly enhances their project activities. However, quantity surveying companies are hesitant to use technology for several reasons, including the cost and maintenance associated with it. Other obstacles include a lack of knowledge, poor market acceptance, legal obstacles, and budgetary constraints. Implication: Despite the advantages associated with modern technology applications, quantity surveying firms are not using them, which may ultimately affect their work output. Therefore, firms need to re-examine these obstacles, inhibiting their adoption of technology in the work process to enhance their production. Value of the Paper: The study reveals the main hindrances to technology usage, which may help firms institute measures to address them. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=barriers" title="barriers">barriers</a>, <a href="https://publications.waset.org/abstracts/search?q=implementation" title=" implementation"> implementation</a>, <a href="https://publications.waset.org/abstracts/search?q=technology" title=" technology"> technology</a>, <a href="https://publications.waset.org/abstracts/search?q=quantity%20surveying" title=" quantity surveying"> quantity surveying</a> </p> <a href="https://publications.waset.org/abstracts/158795/barriers-to-the-uptake-of-technology-in-the-quantity-surveying-industry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158795.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">84</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> Digital Media Market, Multimedia, and Computer Graphic Analysis Amidst Fluctuating Global and Local Scale Economy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Essang%20Anwana%20Onuntuei">Essang Anwana Onuntuei</a>, <a href="https://publications.waset.org/abstracts/search?q=Chinyere%20Blessing%20Azunwoke"> Chinyere Blessing Azunwoke</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study centred on investigating the influence of multimedia systems and computer graphic design on global and local scale economies. Firstly, the study pinpointed the significant participants and top five global digital media distribution in the digital media market. Then, the study investigated whether a tie or variance existed between the digital media vendor and market shares. Also, the paper probed whether the global and local desktop, mobile, and tablet markets differ while assessing the association between the top five digital media and global market shares. Finally, the study explored the extent of growth, economic gains, major setbacks, and opportunities within the industry amidst global and local scale economic flux. A multiple regression analysis method was employed to analyse the significant influence of the top five global digital media on the total market share, and the Analysis of Variance (ANOVA) was used to analyse the global digital media vendor market share data. The findings were intriguing and significant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computer%20graphics" title="computer graphics">computer graphics</a>, <a href="https://publications.waset.org/abstracts/search?q=digital%20media%20market" title=" digital media market"> digital media market</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20market%20share" title=" global market share"> global market share</a>, <a href="https://publications.waset.org/abstracts/search?q=market%20size" title=" market size"> market size</a>, <a href="https://publications.waset.org/abstracts/search?q=media%20vendor" title=" media vendor"> media vendor</a>, <a href="https://publications.waset.org/abstracts/search?q=multimedia" title=" multimedia"> multimedia</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20media" title=" social media"> social media</a>, <a href="https://publications.waset.org/abstracts/search?q=systems%20design" title=" systems design"> systems design</a> </p> <a href="https://publications.waset.org/abstracts/188472/digital-media-market-multimedia-and-computer-graphic-analysis-amidst-fluctuating-global-and-local-scale-economy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/188472.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">31</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> Repair Workshop Queue System Modification Using Priority Scheme</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=C.%20Okonkwo%20Ugochukwu">C. Okonkwo Ugochukwu</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Sinebe%20Jude"> E. Sinebe Jude</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Odoh%20Blessing"> N. Odoh Blessing</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Okafor%20Christian"> E. Okafor Christian</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a modification on repair workshop queuing system using multi priority scheme was carried out. Chi square goodness of fit test was used to determine the random distribution of the inter arrival time and service time of crankshafts that come for maintenance in the workshop. The chi square values obtained for all the prioritized classes show that the distribution conforms to Poisson distribution. The mean waiting time in queue results of non-preemptive priority for 1st, 2nd and 3rd classes show 0.066, 0.09, and 0.224 day respectively, while preemptive priority show 0.007, 0.036 and 0.258 day. However, when non priority is used, which obviously has no class distinction it amounts to 0.17 days. From the results, one can observe that the preemptive priority system provides a very dramatic improvement over the non preemptive priority as it concerns arrivals that are of higher priority. However, the improvement has a detrimental effect on the low priority class. The trend of the results is similar to the mean waiting time in the system as a result of addition of the actual service time. Even though the mean waiting time for the queue and that of the system for no priority takes the least time when compared with the least priority, urgent and semi-urgent jobs will terribly suffer which will most likely result in reneging or balking of many urgent jobs. Hence, the adoption of priority scheme in this type of scenario will result in huge profit to the Company and more customer satisfaction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=queue" title="queue">queue</a>, <a href="https://publications.waset.org/abstracts/search?q=priority%20class" title=" priority class"> priority class</a>, <a href="https://publications.waset.org/abstracts/search?q=preemptive" title=" preemptive"> preemptive</a>, <a href="https://publications.waset.org/abstracts/search?q=non-preemptive" title=" non-preemptive"> non-preemptive</a>, <a href="https://publications.waset.org/abstracts/search?q=mean%20waiting%20time" title=" mean waiting time"> mean waiting time</a> </p> <a href="https://publications.waset.org/abstracts/69985/repair-workshop-queue-system-modification-using-priority-scheme" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69985.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">396</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> Frequency of Alloimmunization in Sickle Cell Disease Patients in Africa: A Systematic Review with Meta-analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Theresa%20Ukamaka%20Nwagha">Theresa Ukamaka Nwagha</a>, <a href="https://publications.waset.org/abstracts/search?q=Angela%20Ogechukwu%20Ugwu"> Angela Ogechukwu Ugwu</a>, <a href="https://publications.waset.org/abstracts/search?q=Martins%20Nweke"> Martins Nweke</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background and Objectives: Blood transfusion is an effective and proven treatment for some severe complications of sickle cell disease. Recurrent transfusions have put patients with sickle cell disease at risk of developing antibodies against the various antigens they were exposed to. This study aims to investigate the frequency of red blood cell alloimmunization in patients with sickle disease in Africa. Materials and Methods: This is a systematic review of peer-reviewed literature published in English. The review was conducted consistent with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses checklist. Data sources for the review include MEDLINE, PubMed, CINAHL, and Academic Search Complete. Included in this review are articles that reported the frequency/prevalence of red blood cell alloimmunization in sickle cell disease patients in Africa. Eligible studies were subjected to independent full-text screening and data extraction. Risk of bias assessment was conducted with the aid of the mixed method appraisal tool. We employed a random-effects model of meta-analysis to estimate the pooled prevalence. We computed Cochrane’s Q statistics and I2 and prediction interval to quantify heterogeneity in effect size. Results: The prevalence estimates range from 2.6% to 29%. Pooled prevalence was estimated to be 10.4% (CI 7.7.–13.8); PI = 3.0 – 34.0%), with significant heterogeneity (I2 = 84.62; PI = 2.0-32.0%) and publication bias (Egger’s t-test = 1.744, p = 0.0965). Conclusion: The frequency of red cell alloantibody varies considerably in Africa. The alloantibodies appeared frequent in this order: the Rhesus, Kell, Lewis, Duffy, MNS, and Lutheran <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=frequency" title="frequency">frequency</a>, <a href="https://publications.waset.org/abstracts/search?q=red%20blood%20cell" title=" red blood cell"> red blood cell</a>, <a href="https://publications.waset.org/abstracts/search?q=alloimmunization" title=" alloimmunization"> alloimmunization</a>, <a href="https://publications.waset.org/abstracts/search?q=sickle%20cell%20disease" title=" sickle cell disease"> sickle cell disease</a>, <a href="https://publications.waset.org/abstracts/search?q=Africa" title=" Africa"> Africa</a> </p> <a href="https://publications.waset.org/abstracts/159075/frequency-of-alloimmunization-in-sickle-cell-disease-patients-in-africa-a-systematic-review-with-meta-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159075.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">99</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">‹</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=Ugwu%20Blessing%20Nkiruka&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Ugwu%20Blessing%20Nkiruka&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Ugwu%20Blessing%20Nkiruka&page=2" rel="next">›</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> 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