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The Impacts of Community Radio Stations on National Development; a Case Study of Bo City
Get PDFThis study examined the Impacts of Community Radio Stations on National Development, using Bo city as a case study. Findings were generated in line with the general aim which is to investigate the impacts of community radio stations on national development, as well as the following specific objectives:
Conceptualization of community radio stations as tool for national development
Functions of community radio stations on development policies
Influence of community radio stations on public opinions and information dissemination
Roles played by community radio stations during COVID-19 pandemic
Recommendations on how to mitigate the problems associated with community radio stations
The findings affirmed that majority were aware of the concept of community radio stations, and they believed that the stations performed functions such as informing, educating and entertaining the public. Additionally, majority of the respondents were of the view that community radio stations affect public opinions greatly, by influencing their political decisions and their choices towards certain products through advertisement. Thus, it was also revealed that community radio stations played key roles in fighting COV ID-19 pandemic, by reporting or updating the public about COVID-19 cases, providing the opportunity for medical practitioners to discuss issues around the pandemic, and showing pictures and graphics relating to the preventive measures of the pandemic respectively. It was also recommended that the government and other stakeholders should support community radio stations with adequate resources in order to enable them function effectively.The main purpose of community radio is to provide marginalized communities with access to a voice through the broadcasting channel of radio so they can express their concerns, interests and needs, promote and protect their cultures, traditions and heritages and determine their own development. For a community radio station to serve its purpose, members of a community need to be allowed access to participate in the day-to- day activities of a community radio station and have access to relevant information to better their circumstances. In order to obtain access to these resources, certain operational frameworks must be established and maintained
Mechanical and Antibacterial Properties of Polyester/Chitosan/Ag Nanocomposite
Get PDFThis projects development of a new type of lightweight polymer-based nanocomposite material, utilizing polyester resin as the matrix and incorporating Ag nanoparticles and chitosan as filler materials. Polyester based composites products sometimes suffers from mechanical failure, weather adaption and microbial attack. Our findings demonstrate significant advancements in both mechanical and antibacterial properties of these nanocomposites. Chitosan and Silver (Ag) nanoparticles reinforced polyester based nanocomposites were prepared where chitosan were synthesized from shrimp shell and Ag nanoparticles were synthesized by chemical reduction method. Different percentage of (wt%) chitosan were loaded in polyester matrix and 2.5wt% chitosan loading was found to be optimized. In the optimized polyester-chitosan system different percentage (2.5, 5, 7.5) wt% of Ag nanoparticles were dispersed as reinforcement to fabricate polyester/chitosan/Ag nanocomposites. The resultant polyester based nanocomposites were (i) polyester/chitosan/2.5wt% Ag, (ii) polyester/chitosan/5wt% Ag, (iii) polyester/chitosan/7.5wt% Ag which were compared with the blank polyester resin sheet and optimized polyester/chitosan composite for the investigation of mechanical ( tensile strength, young’s modulus, flexural strength, flexural strain and hardness), water absorption and antimicrobial activities. Among the entire composite and nanocomposites the polyester/chitosan/2.5wt%Ag showed the best results in an average with respect to mechanical, water absorption and antimicrobial activities
Deepfake Detection and Analysis Using Fusion Model
Get PDFIn today\u27s digital era, deepfake technology presents both innovation and peril, with hyper-realistic synthetic media capable of widespread deception. This research delves into deepfake detection, focusing two deepfake detection models, namely, the VIT image classifier and Meso4 model. Utilizing convolutional neural networks, VIT analyzes images, while Meso4 scrutinizes at a mesoscopic level. A comparative analysis evaluates their effectiveness in discerning authentic from manipulated content. Using the Open Forensics dataset and self-generated content, VIT achieves remarkable accuracy, while Meso4 encounters challenges, such as limited generalization, task-dependent accuracy levels, etc. Therefore, in the proposed work additional features like, Eye movement error detection, Skin texture inconsistency detection and Facial feature inconsistency detection are integrated into a customized model, which results significantly in augmenting accuracy and computation speed compared to above compared models. This research work emphasizes the need for advancing unbiased deepfake detection methods, urging vigilance in safeguarding privacy and security amidst pervasive digital deception
Review of Water-Sensitive Urban Design and the Current Situation in Egypt
Get PDFGlobal urbanization and climate change have resulted in many environmental problems, including pollution, water scarcity, and other water-related disasters. As a result, urban solutions classified under design sustainability are needed to reduce the impacts of urbanization and climate change. Water-sensitive urban design (WSUD) promises to reduce freshwater pollution, provide additional water, decrease flooding potential, protect ecosystems, improve urban amenities, and preserve the aesthetic nature of blue and green areas. These objectives are vital as we face rapid urbanization, rapid growth in population, serious water scarcity, and climate change impacts on urban water resources, However, we find that these studies are limited, especially in developing countries, and do not match the importance of the subject. So, the fundamental techniques of WSUD are thoroughly outlined in this paper, emphasizing how WSUD contributes to the increased livability of metropolitan regions. The search in research databases from 2016 to 2024 included research papers, theises, books, and international and local reports. This review aims to raise awareness regarding the present situation in Egypt and to enhance comprehension of optimum planning methods for WSUD. This paper main contribution is to enhance the understanding of WSUD by identifying the gap (future trends for researchers) in this topic
Identification and Distribution of Hard Ticks Species (Acari: Ixodidae) on the Northeastern Coast of Libya
Get PDFHard ticks (Acari: Ixodidae) are essential blood-feeding ectoparasites. Many species are medically the second-most important arthropod disease vectors for humans. Furthermore, hard ticks are the most prevalent and significant ectoparasites of domestic animals worldwide. To investigate the tick species infesting animals or the ground, seeking a host in northeastern Libya, a study of hard ticks (Acari: Ixodidae) was carried out between 2006 and 2009, which was then continued at the end of 2017–2018. Two methods were used to collect individual tick samples: direct collection from infected animals (donkeys, goats, sheep, cows, camels, and dogs) and dragging a cloth over the vegetation. The tick species were identified using morphological examinations. A total of 1991 individual ticks were identified in this study from 11 cities and regions in Libya. Overall, eleven tick species were identified: Hyalomma (three species), Boophilus (three species), Rhipicephalus (three species), Amblyomma (one species), and Haemaphysalis (one species). The most common tick species identified were Hyalomma dromedarii and Rhipicephalus sanguineus. Al-Marj city (meadow) had the highest number of ticks, followed by Massa city, while Ras Al-Hellal had the fewest number of ticks. This study is one of the few of its kind conducted in our country, and our findings help explain the tick species that parasitize animals. The presence of Haemaphysalis parva in the Al Jabal Al Akhdar region as a new species indicates a need for more comprehensive studies to inventory the local tick populations
Transforming Higher Education: A Systematic Review of Transformational Leadership among University Lecturers in Xi\u27an, China
Get PDFThis systematic review explores the dynamics of transformational leadership among university lecturers in public universities in Xi\u27an, China. Drawing on a range of validated research instruments and employing a rigorous methodology, this study investigates the interplay between spiritual intelligence, mindfulness, organizational justice, structure alignment, social responsibility, job satisfaction, and their impact on transformational leadership. Through a comprehensive analysis of self-administered questionnaires, this review sheds light on the critical factors influencing leadership behaviors in higher education settings, offering valuable insights for academics, policymakers, and institutional leaders aiming to foster transformative educational environments
Risk factors for Covid-19 at Dr. Jhon Piet Wanane Regional General Hospital, Sorong Regency: Covid-19
Get PDFCovid-19 globally, in Indonesia and the Southwest Papua region is still a major health problem because of its high cases with a Case Fatality Rate of 2-10%. This study aims to determine the risk factors for COVID-19 events at the Dr. Jhon Piet Wanane Regional General Hospital Hospital, Sorong Regency. The type of research is observational with a cross-sectional approach. The population was 5,695 patients with a sample of 772 patients taken by purposive sampling technique. Data were collected using data from the COVID-19 Epidemiology in Hospital investigation form sheet and analyzed using the Chi-Square test, Prevalence Ratio Analysis, and regression binary logistic.The results of the study found that the variables that were not significant and not risk factors with the incidence of COVID-19 at the Dr. Jhon Piet Wanane Regional General Hospital Hospital, Sorong Regency were: Age was obtained with a p-value of 0.105 with a Prevalence Ratio = 240.8; CI 95% (0.67 – 1.029). Gender p-value 0.349 Prevalnce Ratio = 1.076; CI 95% (0.93 – 1.24), the tribe obtained p-value 0.167 and PR = 1.09; CI 95% (0.96-1.237). For variables that are significantly related to the incidence of Covid-19 are contact history p-value 0.002 and PR = 2.438; CI 95% (1.38 – 4.28), vaccination status p-value 0.002 and PR = 2.438; CI 95% (1,386-4,287) and comorbid P -value 0.002 with PR =1,247; CI 95% (1,087-1,431).In the multivariate analysis, the most dominant variable related to the incidence of COVID-19 at Dr. Jhon Piet Wanane Hospital, Sorong Regency in 2022 was comorbid variable.
Development of 64Cu-doped Gold Nanoparticles for In-vitro and In-vivo Studies
Get PDFGold Nanoparticles (GNPs) have been utilized as radiosensitizers to amplify radiation\u27s effect on specifically targeted cancerous cells. Since traditional GNPs are not inherently radioactive, it complicates the ability to measure their distribution and clearance from the body following administration to ensure that they are localized to the tumors rather than healthy tissue. In this study, novel GNPs were developed by doping the GNPs with 64Cu. These GNPs were then characterized by ultraviolet-visible (UV-Vis) spectroscopy, Transmission Electron Microscopy (TEM), Energy Dispersive X-ray Spectroscopy (EDS), Inductively Coupled Plasma (ICP) emission spectroscopy, and X-ray Photoelectron Spectroscopy (XPS). Additionally, to compare the biocompatibility of 64Cu@Au GNPs to that of traditional GNPs, in vitro cytotoxicity studies as well as in vivo biodistribution and pharmacokinetics studies were conducted. After measuring the viability of A-549 cells after exposure to varying concentrations of hybrid GNPs, the IC50 value measured falls within the expected range for traditional GNPs. Further, the hybrid GNPs were administered to mice samples, and the organs and tissues were collected at different time intervals and analyzed for radioactivity levels
Adhesive Compositions based on Heptene-1 Copolymer with Maleic Anhydride
Get PDFAdhesive compositions based on hepten-1-maleic anhydride co-polymer and ED-16 epoxide resin were prepared and some physical and physico-chemical properties of these adhesive compositions were determined. The ability of the prepared adhesive composition to bond aluminum and steel plates was also studied. Adhesive compositions of hepten-1-maleic anhydride copolymer and ED-16 epoxy resin in different ratios (10, 15, 20, 25, 30 s.c. copolymer to 100 s.c. ED-20 epoxide resin) were prepared. Curing of ED-16 epoxy resin with co-polymer (CP) was studied and the effect of temperature and amount of co-polymer on curing was determined. The adhesive properties of aluminum and steel plates were studied
Adhesive compositions based on hepten-1-maleic anhydride co-polymer and ED-16 epoxide resin were prepared and some physical and physico-chemical properties of these adhesive compositions were determined. The ability of the prepared adhesive composition to bond aluminum and steel plates was also studied. Adhesive compositions of hepten-1-maleic anhydride copolymer and ED-16 epoxy resin in different ratios (10, 15, 20, 25, 30 s.c. copolymer to 100 s.c. ED-20 epoxide resin) were prepared. Curing of ED-16 epoxy resin with co-polymer (CP) was studied and the effect of temperature and amount of co-polymer on curing was determined. The adhesive properties of aluminum and steel plates were studied by hardening under different conditions. It was determined that the strength of the adhesive compositions prepared in different mass ratios of joint polymer and ED-16 epoxy resin for aluminum plates with a ratio of ED-16:CP=100:25 to fracture resistance. was higher for When the adhesive composition with this composition is cured at 160, 180, 200 0 C for 3 hours, the strength against sliding breakage for duralumin plates were 24.8, 26.2 and 25.8 MPa. The tensile strength ¬and dielectric properties of the adhesive composition prepared in the ratio of ED-16:CP=100:25 were determined.
by hardening under different conditions. It was determined that the strength of the adhesive compositions prepared in different mass ratios of joint polymer and ED-16 epoxy resin for aluminum plates with a ratio of ED-16:CP=100:25 to fracture resistance. was higher for When the adhesive composition with this composition is cured at 160, 180, 200 0 C for 3 hours, the strength against sliding breakage for duralumin plates were 24.8, 26.2 and 25.8 MPa. The tensile strength ¬and dielectric properties of the adhesive composition prepared in the ratio of ED-16:CP=100:25 were determined
Dispelling the Malaria-Typhoid Co-infection Myth in Nigeria: A Literature Review
Get PDFMalaria and typhoid fever are public health concerns in Nigeria, with high prevalence rates. The perception of a widespread co-infection between these diseases may be misleading, due to limitations in diagnostic methods, particularly the Widal test for typhoid fever. This literature review examines the prevalence of malaria-typhoid co-infection in Nigeria and identifies factors contributing to misdiagnosis, including non-specific symptoms, limited diagnostic resources, and the diagnostic accuracy of tests employed. Additionally, the review discusses the implications of misdiagnosis, such as the overuse of broad-spectrum antibiotics leading to a rising incidence of antimicrobial resistance. Strategies to address this issue are explored, emphasizing the need for improved diagnostic methods, enhanced healthcare provider education, and comprehensive health education campaigns to empower patients and curb antibiotic misuse. While acknowledging limitations in available research done in Nigeria, this review underscores the urgency of addressing the malaria-typhoid co-infection myth to improve healthcare outcomes and combat antimicrobial resistance in Nigeria