ABSTRACT: Exchange rate plans are the primary focus of all adjustment attempts, as they are designed to enhance a nation's competitiveness in the global market. The hypothesis posits that a devaluation of the currency will have ramifications for the economy, particularly concerning foreign accounts. The hypothesis further posits that a lower exchange rate may stimulate exports and enhance the trade balance. Acknowledging that the anticipated positive outcomes may persist over an extended duration is imperative. This article will methodically examine the interplay between the exchange rate, trade balance, imports, and exports. Our research employs the linear cointegration approach (ARDL) and the non-linear method (NARDL) from 1970 to 2021, with a focus on Libya. The analysis will demonstrate that healthy capital, consumer, and raw material markets are prerequisites for economic growth. Consequently, economic growth necessitates the availability of additional resources. The government must implement a price stabilization program with all relevant stakeholders to achieve the desired trade balance. The substitution of domestic products for imported goods has the potential to improve the nation's trade balance.

Keywords: Trade balance; Imports; Exports; Exchange rate; ARDL; NARDL; Libya.

 We give the approximate solution of the Riccati/Logistic differential equations (RDE/LDE). The suggested approach depends on the homotopy perturbation method developed with the Chebyshev series (CHPM). A study of the convergence analysis of CHPM is presented. The residual error function is calculated and used as a basic criterion in evaluating the accuracy and efficiency of the given numerical technique. We use the exact solution and the Runge-Kutta method of fourth order for comparison with the results of the method used. Through these results, we can confirm that the applied method is an easy and effective tool for the numerical simulation of such models. Illustrative models are given to confirm the validity and usefulness of the proposed procedure. 

Infectious diseases that involve hepatitis B (HBsAg), hepatitis C (HCV), HIV, and syphilis (VDRL) remain significant worldwide health challenges, particularly in low- and middle-income countries. Libya serves as both a transit and destination point for migrants, creating a unique context for examining the prevalence of these disorders among migrant workers and Libyan citizens. Comprehending variations in illness prevalence based on nationality and employment is essential for formulating targeted public health interventions. The objective of this research was to evaluate the seroprevalence of HBsAg, HCV, HIV, and VDRL among migrant workers and Libyan nationals undergoing mandatory occupational health screenings. A retrospective cross-sectional study was conducted at the Reference Laboratory, Western Mountain, Al-Rajban in Libya between December 2023 and February 2024. A total of 1,656 participants were assessed, including 1,434 migrant laborers and 223 Libyan natives. The VDRL test exhibited the greatest chance at 1.6%, followed by HBsAg at 1.4%, HCV at 0.9%, and HIV at 0.2%. Migrant workers had a greater prevalence of HBsAg at 1.6% and slightly elevated rates of HCV and HIV compared to Libyan residents, who reported no instances of these infections. Occupational research indicated that general workers had the largest disease burden, with statistically significant rates of HBsAg at 2.1%, HCV at 1.4%, and VDRL at 2.1%. Specialized workers had low illness rates, perhaps attributable to superior hygiene practices or underreporting. This research underscores the gap in infectious diseases between migrant workers and Libyan citizens, emphasizing the need for focused screening, enhanced workplace safety, and equitable access to preventive healthcare. The findings underscore the need for occupation-specific health interventions to mitigate risk, particularly for high-risk populations such as general laborers. Future research should include longitudinal studies and a larger sample size to validate these results and enhance global health equality. 

Myiasis, the invasion of tissues by fly larvae, is a considerable but overlooked public health concern, especially in tropical and subtropical areas. The frequency of myiasis in North Africa is affected by geographic, climatic, and socioeconomic variables; yet, there is a paucity of comprehensive information about its treatment across the area. Regional disparities in healthcare infrastructure, cultural customs, and interruptions due to war exacerbate the challenges in addressing this neglected tropical disease (NTD). The goal of this systematic review is to look at differences in how myiasis is treated in different parts of North Africa, focusing on things like epidemiology, preventative measures, diagnostic methods, treatment options, and the healthcare system. The study finds deficiencies in the literature and offers pragmatic suggestions for governments, healthcare practitioners, and academics. A systematic search was performed across various databases, including PubMed, Scopus, Web of Science, Google Scholar, and regional databases like African Journals Online (AJOL). We incorporated research from 2000 to 2025, focusing on human and animal myiasis in North African nations. Data extraction utilized a standardized template, focusing on assessing the quality of high-quality and reliable sources. The research revealed substantial discrepancies in myiasis management across urban and rural regions, and among several North African nations. Urban locations in Egypt, Tunisia, and Algeria had superior access to contemporary diagnostic instruments and therapies, while rural regions mainly depended on conventional remedies. Conflict-affected nations such as Libya and Sudan saw significant healthcare interruptions, heightening myiasis. Significant hurdles were restricted diagnostic instruments, erratic public health initiatives, and insufficient data from underreported regions like Mauritania and Western Sahara. Managing regional disparities in myiasis requires focused treatments, enhanced monitoring systems, and cooperation among governments, healthcare professionals, and communities. Future studies must emphasize cost-efficient solutions customized for local circumstances, especially in conflict-affected and disadvantaged areas. By closing gaps in knowledge and practice, we may facilitate more fair and effective management of myiasis across North Africa and beyond.