This study suggests an enhanced version of the adaptive fuzzy fast terminal synergetic controller(AF-FTSC) for controlling the uncertain DC/DC buck converter based on the synergetic theory ofcontrol (STC) and newly developed terminal attractor technique (TAT). The benefits of the proposedSC algorithm involve the features of finite-time convergence, unaffected by parameter variations, andchattering-free phenomenon. A type-1 fuzzy logic system (T1-FLS) make the considered controllermore robust and is utilized to estimate the undefined converter nonlinear dynamics without resortingto the usual linearization and simplifications of the converter model. Taking a switching DC-DC buckconverter as a demonstration, the suggested AF-FTSC is thoroughly analyzed and executed on adSPACE ds1103 controller board. The outcomes of the experiment confirm the competence andapplicability of the suggested regulator.Keywords: Synergetic control, Fuzzy logic system, Fast terminal method, Finite-time convergence, DC/DCbuck converter

Natural fiber-reinforced polymer composites are the most widely used materials and preferable interms of biodegradability, cost production, recyclability, and low density. The main aim of thisstudy is to conduct an experimental investigation on tensile strength and impact strength ofpalmyra palm leaf stalk fiber (PLSF) and sisal fiber reinforced polymer hybrid composite. Thecomposite material was fabricated using hand lay-up techniques. The working parameters aremass fraction ratio of PLSF/sisal fiber and volume fiber fraction with the matrix. Tensile strengthand impact energy resistance tests were experimentally conducted according to the ASTM stan-dard dimensions. The results revealed that the addition of sisal fiber to PLSF enhanced the tensilestrength by 12.850 %, 26.540 %, and 30.630 % respectively compared to pure Palmyra palm leafstalk fiber reinforced composite (PPFRC). Whereas, the addition of PLSF to sisal fiber improvedthe impact of energy by 20.980 %, 13.610 %, and 11.880 % compared to pure sisal fiber rein-forced composite (PSFRC). The tensile strength with 20 % fiber volume fraction is improved by53.996 % and 12.188 % compared to 10 % and 15 % of fiber respectively. The impact strengthwas also enhanced by 24.931 % and 10.030 % compared to 10 % and 15 % of volume fiberfraction respectively. The tensile strength and impact energy of the treated fiber compositeincreased by 62.243 % and 22.478 % respectively compared to the untreated hybrid Palmyrapalm leaf stalk and sisal hybrid fiber reinforced composite (UHPSFRC). Generally, the HPSFRC-2(Palmyra palm leaf stalk/sisal fiber) (P/S ratio 50/50 % ratio with 20/80 % ratio of fiber/matricpercentage reinforced polymer hybrid composite) has good tensile strength and impact energy.Therefore, the mechanical property of the (Palm/Sisal) hybrid composite can be used for themanufacturing of the automotive interior parts like door panel, dash board, seat back, andautomotive roof.
Keywords: Handy lay-up, Hybrid fiber, Mechanical properties. unsaturated polyester resin

Introduction Vaccination is a critical public health intervention that significantly reduces morbidity and mortalityamong children. Despite its importance, vaccination coverage remains suboptimal in many regions, including EastGojam, Amhara Region, Ethiopia. This study investigated the sociodemographic, economic, and cultural determinantsof vaccination status among pediatric populations in East Gojam.Methods Using a cross-sectional design, data were collected from 1,900 respondents, categorizing vaccinationstatus as not vaccinated, partially vaccinated, or fully vaccinated. Multinomial logistic regression was used to analyzethe impact of predictors such as child age, gender, parental education level, household income, geographic location,access to healthcare, trust in healthcare providers, sources of vaccination information, cultural beliefs, and perceivedgovernment support for vaccination.Results The results revealed that higher parental education levels and urban residence positively influence vac-cination status. Older children were less likely to be fully vaccinated, indicating a need for targeted outreach. Accessto healthcare services and trust in healthcare providers significantly promoted vaccination, whereas negative culturalbeliefs and misinformation adversely affected vaccination status. Perceived government support for vaccinationwas also a significant predictor.Conclusion This study concludes that addressing these multifaceted determinants through educational programs,improved healthcare access, trust-building initiatives, accurate information dissemination, stronger governmentalsupport, targeted outreach for older children, community engagement, and multisectoral collaboration can enhancevaccination coverage and improve public health outcomes in East Gojam and similar settings.Keywords Vaccination, Pediatric populations, Ethiopia, Sociodemographic factors, Health services accessibility,Cultural beliefs, Trust in healthcare providers, Parental education, Multinomial logistic regression

Agro-nanotechnology—the application of nanotechnology in agriculture—holds immense promise for addressing main challengesin African agriculture and promoting sustainable development. This review provides a comprehensive analysis of how agro-nanotechnology is being utilized across Africa, emphasizing its potential to revolutionize various aspects of agricultural practiceson the continent. Firstly, the utilization of nanomaterials such as nanoparticles, nanofertilizers, and nanopesticides offersopportunities for enhancing nutrient management, improving soil health, and increasing crop productivity in diverseagroecosystems across Africa. Nanofertilizers, with their controlled release mechanisms, facilitate efficient nutrient uptake byplants, thereby reducing nutrient losses and enhancing fertilizer use efficiency, which is crucial for resource-constrainedsmallholder farmers. Nanopesticides suggest improved efficacy in pest and disease control, reducing environmental harmcompared to traditional pesticides. Their targeted delivery also minimizes off-target effects, which is crucial for Africa’s foodsecurity. Nanosensors also enable real-time monitoring of soil and crop health, enhancing precision agriculture. Nanotechnologyin postharvest management reduces food losses and improves safety. However, its adoption requires careful consideration ofsocioeconomic and regulatory factors to ensure equitable access and environmental safety. Collaborative efforts involvingpolicymakers, researchers, farmers, and other stakeholders are crucial for harnessing the benefits of agro-nanotechnology whileaddressing potential risks and concerns. In conclusion, the integration of agro-nanotechnology into African agriculture presents atransformative opportunity to enhance productivity, resilience, and sustainability, contributing to the continent’s efforts towardachieving food security, economic development, and environmental conservation.Keywords: agro-nanotechnology; nanofertilizers; nanopesticides; nanosensors; precision agriculture

This study aims at exploring the potentials and drawbacks of utilizing social media to promote tourism industry in East Gojjam Zone. The study will be geographically limited to East Gojjam Zone and will not include media platforms other than social media. The research will bring significance to the culture and tourism offices, agencies that work on tourism industry and an input for the government organizations in policy formulation as well as for future researchers. Qualitative research approach with descriptive design will be employed. The population of this study is social media pages of Culture and Tourism Offices of all the woredas found in East Gojjam Zone and of the Zones’ Culture and Tourism Department. The sample will be purposive sampling of all social media pages of the woredas and the zone. Focus group discussion and indepth interview will be conducted in eight selected woredas and zonal culture and tourism office. East Gojjam Zone has 19 woredas including Debre Markos town. The data will be gathered using content analysis of the social media posts, focus group discussion and in-depth interview. In addition, data will also be collected from reports, and publications like newsletters and articles.To collect the data official support letter will be submitted to the Culture and Tourism Department of East Gojjam Zone. The authenticity of social media pages of the woreda tourism offices will be confirmed with the concerned bodies at the zonal level. The collected data using online content, in-depth interview and focus group discussion will be triangulated for data analysis. The researchers expect to find out social media usage patterns and preferences in tourism promotion, social media promotion strategies and implementation, social media regulation and governance in tourism promotion. Atotal budget of 201, 722 ETB will be allocated to conduct the whole study from April to September, 2024.

The work presented in this paper focuses on formulating the development of time-dependent electromagneticfield laws through the application of Gauss’s divergence theorem. The first part of the discussion looks at thebasic ideas of electromagnetism. It focuses on how classical formulations of the laws of electromagnetism can beadapted to account for non-stationary conditions, especially regarding magnetic fluids that don’t conduct elec-tricity. It is suggested that employing Gauss’s divergence theorem could help improve the computational analysisof these generalized equations, which would make them more useful in magnetic fluid dynamics. The paperexamines the intricate interactions between non-conductive particles and conductive fluids under magneticfields. By putting these interactions into a single theoretical framework, this work aims to help us understandnon-stationary electromagnetic phenomena and how they affect many different scientific and engineering fields.The concluding section of the study examines the prospective practical applications of these extended equations.They could enable the development of more advanced electromagnetic devices and systems. Creating a strong setof analytical tools that can find new scientific paths and useful applications is the main goal of the study,particularly in the areas of electromagnetic induction and fluid dynamics. This research offers potential forsubstantial progress in both theoretical comprehension and technological advancement, The proposed method isapplicable to real-world systems such as ferrofluid-based cooling, magnetic dampers, plasma generators, andsmart electromagnetic devices. These applications demonstrate the practical benefits of coupling field behaviorwith boundary dynamics using Gauss’s theorem.
Keywords: Gauss theorem, Non-conductive;Magnetic, Non-stationary, Fluids, Induction

Abstract: Food insecurity in peri-urban areas is exacerbated by high living costs, limited access tohealthy food, and economic inequality. Despite its growing prevalence due to factors like land lossfrom urban expansion, food insecurity has received limited attention. In Ethiopia, drastic urbanizationcreates competition for land between agriculture and urban development, which is becoming extremein peri-urban areas., This study aims to assess the impact of urban expansion on food security amongexpropriated peri-urban households in Ethiopia. Using a calorie intake-based food security line, wecategorize respondents as food-secure or -insecure. The research analyzed data from 350 expropriatedperi-urban households through a structured questionnaire, employing descriptive statistics andbinary logistic regression. About 67% of the respondents were classified as food-insecure. The binarylogit model identified several significant determinants of food security, including compensationamount and type, household head demographics, agricultural land rent participation, irrigationand credit access, off-farm income, and organic fertilizer use. To address food insecurity amongexpropriated households, policymakers must prioritize these factors. Government attention andpolicy consideration are crucial to ensure the well-being of these vulnerable populations.Keywords: urban expansion; food insecurity; calorie intake; expropriation; Ethiopia

ABSTRACT Background: Blood donation is vital for saving lives, yet Ethiopia faces chronic shortages. Bridging the gap between willingness and actual donation is essential for sustaining blood supplies. This study examined socio-demographic, psychological, and contextual factors influencing blood donation intention and practice in East Gojjam Zone. Methods: A community-based cross-sectional survey of 1,332 urban adults who met inclusion criteria was conducted using multistage cluster sampling. Data were collected via a structured, pre-tested questionnaire. Descriptive statistics summarized donation patterns, while binary logistic and Zero-Inflated Negative Binomial regressions identified predictors of donation intention and frequency, respectively. Structural Equation Modeling (SEM) examined associations among socio-demographic characteristics, psychological factors, donation intention, practice, and behavior. Results: Although 74.8% (95% CI: 72.5–77.1) expressed willingness to donate, only 28.8% (95% CI: 26.4–31.2) had ever donated, and 20.7% (95% CI: 18.5–22.9) had donated in the past two years. Male gender, younger age, higher education, and employment in health or education sectors positively predicted intention and practice. Psychological factors—including self-efficacy (β = 0.53), positive attitudes (β = 0.46), knowledge (β = 0.38), altruism, and social influence (β = 0.28)—were strongly associated with donation. SEM confirmed that intention strongly predicted actual donation (β = 0.62). Barriers included fear of needles, health concerns, and limited awareness. Conclusions: Despite high willingness, actual donation remains low. Multi-sectoral, culturally sensitive strategies—addressing fears, improving knowledge, leveraging social influence, and enhancing accessibility—are critical, especially for women, older adults, and less-educated individuals, to build a resilient, community-driven blood supply. Keywords: Blood donation, intention, practice, socio-demographic factors, psychological determinants, Ethiopia, Structural Equation Modeling

ABSTRACT Background: Blood donation is vital for saving lives, yet Ethiopia faces chronic shortages. Bridging the gap between willingness and actual donation is essential for sustaining blood supplies. This study examined socio-demographic, psychological, and contextual factors influencing blood donation intention and practice in East Gojjam Zone. Methods: A community-based cross-sectional survey of 1,332 urban adults who met inclusion criteria was conducted using multistage cluster sampling. Data were collected via a structured, pre-tested questionnaire. Descriptive statistics summarized donation patterns, while binary logistic and Zero-Inflated Negative Binomial regressions identified predictors of donation intention and frequency, respectively. Structural Equation Modeling (SEM) examined associations among socio-demographic characteristics, psychological factors, donation intention, practice, and behavior. Results: Although 74.8% (95% CI: 72.5–77.1) expressed willingness to donate, only 28.8% (95% CI: 26.4–31.2) had ever donated, and 20.7% (95% CI: 18.5–22.9) had donated in the past two years. Male gender, younger age, higher education, and employment in health or education sectors positively predicted intention and practice. Psychological factors—including self-efficacy (β = 0.53), positive attitudes (β = 0.46), knowledge (β = 0.38), altruism, and social influence (β = 0.28)—were strongly associated with donation. SEM confirmed that intention strongly predicted actual donation (β = 0.62). Barriers included fear of needles, health concerns, and limited awareness. Conclusions: Despite high willingness, actual donation remains low. Multi-sectoral, culturally sensitive strategies—addressing fears, improving knowledge, leveraging social influence, and enhancing accessibility—are critical, especially for women, older adults, and less-educated individuals, to build a resilient, community-driven blood supply. Keywords: Blood donation, intention, practice, socio-demographic factors, psychological determinants, Ethiopia, Structural Equation Modeling

Evidence shows that financial inclusion plays a key role in driving economic growth and social development by strengthen-ing the financial system and reducing poverty and income inequality. However, its impact on the financial performance ofbanks remains inconclusive. This paper explores the relationship between financial inclusion and the financial performanceof commercial banks in Ethiopia, using a sample of 16 banks. We analyse 10 years of data (2013–2022) collected manuallyfrom the National Bank of Ethiopia (NBE) and the annual reports of commercial banks. A two-step system GeneralizedMethod of Moments (GMM) is employed, alongside other linear panel data model estimators. The findings reveal that in-creased financial inclusion has a significant positive impact on the financial performance (ROA and ROE) of commercialbanks in Ethiopia. The GMM estimation result also shows that bank performance indicators (ROA and ROE) are positivelyassociated with their past realizations. Regarding bank-specific control variables, the cost-efficiency ratio has a significantnegative impact on bank profitability. The study recommends that banks improve accessibility by expanding branch net-works and ATMs and by offering innovative financial products to enhance profitability.Keywords: financial inclusion, GMM, bank performance, Ethiopia