Abstract

In recent years, we have observed a widespread deficiency in essential nutrients, most notably vitamin D, B12, and calcium, across all age groups. This has led to an increase in chronic diseases and mortality rates among adults. Consequently, we have investigated the causes of these deficiencies and sought to develop preventative, therapeutic, and awareness-raising strategies to mitigate this phenomenon and reduce the prevalence of these nutrient deficiencies among adults. The results showed that vitamin D deficiency was the most common (~58.1%) in both sexes, specifically (56.25 %) in males and (59.26%) in females. This was followed by calcium deficiency (48.96%) in males and (54.81%) in females, and vitamin B12 deficiency (16.5%) in males and (11.01%) in females. This study involved collecting random samples of vitamin D, B12, and calcium test results from routine health records of medical laboratories in Gharyan and its suburbs for 704 adults aged between 40 and 80 years, and estimating the prevalence of these vitamin deficiencies. A general paper questionnaire was administered to 100 adults to identify their financial and social status, the most common chronic diseases they suffer from, the types of vitamins they are deficient in, and the methods used to treat this deficiency, 55% of participants reported using dietary supplements. Then we selected 7 adults who had a severe vitamin deficiency under study, and we carried out therapeutic and nutritional interventions and introduced a separate dietary regimen consisting of dried figs and olive oil. These cases were followed up for a period of 3 to 4 months, and the rate of increase in these vitamins and the percentage of all cases were recorded. We found that the greatest improvement was observed in the case that relied on the use of dried figs and olive oil. The results showed a significant increase in both vitamin D and B12 levels. We also noted that the elevated iron stores (ferritin) in the blood results were associated with increased vitamin D levels. In addition, most cases that relied on supplements, injections, or tablets showed a significant increase in vitamin D levels. Keywords: Vitamin D Deficiency, Vitamin B12 Deficiency, Calcium Deficiency, Dried Figs, Olive oil

ABSTRACT

Background: The seroprevalence and risk factors for Toxoplasma gondii infection were examined among high-risk groups in

Gharyan, Libya—a semi-arid region with limited prior data. Aim: Given the severe health risks of toxoplasmosis in

immunocompromised individuals and pregnant women, and the scarcity of studies from western Libya, this research aimed to

address a key knowledge gap while comparing results with those from humid coastal cities.

Methods: A cross-sectional study was conducted from October 2022 to March 2023, involving 45 blood donors, 40

hemodialysis patients, and 146 pregnant women. A validated questionnaire was administered, and an

electrochemiluminescence immunoassay (ECLIA) was used to detect anti-Toxoplasma gondii IgG/IgM antibodies.

Results: Results revealed an overall higher seroprevalence among hemodialysis patients (40.0%), followed by pregnant women

(24.7%), and then blood donors (15.6%). Active (IgM+) infections were rare. Significant risk factors among pregnant women

included consumption of unwashed vegetables, undercooked meat, cat ownership, and rural residence (Adjusted Odds Ratio

aOR=3.42, aOR=3.15, aOR=2.87, aOR=2.05, respectively). No statistically significant difference in seroprevalence was

observed among pregnant women between 2022 (26.2%) and 2023 (23.5%) (P = 0.68).

Conclusion: A lower seroprevalence was observed in Gharyan municipality compared to coastal Libyan cities, indicating the

influence of the dry climate. The study recommends routine first-trimester screening for pregnant women (especially aged 25–

30 years), mandatory pre-dialysis testing for hemodialysis patients, and targeted food safety education focusing on vegetable

washing and thorough meat cooking.

Keywords: Toxoplasma gondii, Seroprevalence, , Pregnant Women, Blood Donors s

This paper analyzes a power system of three regions, each independently responsible for meeting its daily load demands. The regions are interconnected via transmission tie lines, allowing maximum power capacity (MW) transfer in both directions. This study investigates the operation of the power system under different load conditions and examines the possible effects of power transfer limits on the reliability and efficiency of electricity supply across the regions. The research evaluates the optimal operation of generation units within each region while considering the constraints imposed by the transmission tie lines. It indicates that increasing the capacity of transmission tie lines would greatly improve power transfer between regions. Our findings discover that strategic coordination between the regions significantly enhances the system efficiency, reduces generation costs, and minimizes the risk of load shedding during periods of high demand. Additionally, the paper analyzes the effects of different load demands and transmission capacities on system performance, highlighting the advantages of regional interconnections in enhancing energy resilience. The research also investigates the optimal unit commitment for the total load for the same daily load curve by using the quad program. Quadratic Programming allows a full quadratic cost function for each variable together with linear equality and inequality constraints, as well as lower and upper bound limits on the variables.

Abstract

In recent years, we have observed a widespread deficiency in essential nutrients, most notably vitamin D, B12, and calcium, across all age groups. This has led to an increase in chronic diseases and mortality rates among adults. Consequently, we have investigated the causes of these deficiencies and sought to develop preventative, therapeutic, and awareness-raising strategies to mitigate this phenomenon and reduce the prevalence of these nutrient deficiencies among adults. The results showed that vitamin D deficiency was the most common (~58.1%) in both sexes, specifically (56.25 %) in males and (59.26%) in females. This was followed by calcium deficiency (48.96%) in males and (54.81%) in females, and vitamin B12 deficiency (16.5%) in males and (11.01%) in females. This study involved collecting random samples of vitamin D, B12, and calcium test results from routine health records of medical laboratories in Gharyan and its suburbs for 704 adults aged between 40 and 80 years, and estimating the prevalence of these vitamin deficiencies. A general paper questionnaire was administered to 100 adults to identify their financial and social status, the most common chronic diseases they suffer from, the types of vitamins they are deficient in, and the methods used to treat this deficiency, 55% of participants reported using dietary supplements. Then we selected 7 adults who had a severe vitamin deficiency under study, and we carried out therapeutic and nutritional interventions and introduced a separate dietary regimen consisting of dried figs and olive oil. These cases were followed up for a period of 3 to 4 months, and the rate of increase in these vitamins and the percentage of all cases were recorded. We found that the greatest improvement was observed in the case that relied on the use of dried figs and olive oil. The results showed a significant increase in both vitamin D and B12 levels. We also noted that the elevated iron stores (ferritin) in the blood results were associated with increased vitamin D levels. In addition, most cases that relied on supplements, injections, or tablets showed a significant increase in vitamin D levels. Keywords: Vitamin D Deficiency, Vitamin B12 Deficiency, Calcium Deficiency, Dried Figs, Olive oil

AbstractIn recent years, we have observed a widespread deficiency in essential nutrients, most notably vitamin D, B12, and calcium, across all age groups. This has led to an increase in chronic diseases and mortality rates among adults. Consequently, we have investigated the causes of these deficiencies and sought to develop preventative, therapeutic, and awareness-raising strategies to mitigate this phenomenon and reduce the prevalence of these nutrient deficiencies among adults. The results showed that vitamin D deficiency was the most common (~58.1%) in both sexes, specifically (56.25 %) in males and (59.26%) in females. This was followed by calcium deficiency (48.96%) in males and (54.81%) in females, and vitamin B12 deficiency (16.5%) in males and (11.01%) in females. This study involved collecting random samples of vitamin D, B12, and calcium test results from routine health records of medical laboratories in Gharyan and its suburbs for 704 adults aged between 40 and 80 years, and estimating the prevalence of these vitamin deficiencies. A general paper questionnaire was administered to 100 adults to identify their financial and social status, the most common chronic diseases they suffer from, the types of vitamins they are deficient in, and the methods used to treat this deficiency, 55% of participants reported using dietary supplements. Then we selected 7 adults who had a severe vitamin deficiency under study, and we carried out therapeutic and nutritional interventions and introduced a separate dietary regimen consisting of dried figs and olive oil. These cases were followed up for a period of 3 to 4 months, and the rate of increase in these vitamins and the percentage of all cases were recorded. We found that the greatest improvement was observed in the case that relied on the use of dried figs and olive oil. The results showed a significant increase in both vitamin D and B12 levels. We also noted that the elevated iron stores (ferritin) in the blood results were associated with increased vitamin D levels. In addition, most cases that relied on supplements, injections, or tablets showed a significant increase in vitamin D levels.

This paper presents a comparative performance 

analysis of Wavelength Division Multiplexing (WDM) optical fiber and Free Space Optics (FSO) communication systems. A simulation-based optical communication system was designed, incorporating transmitters and receivers to achieve efficient data transmission among several locations, including Tripoli central post office, Gharyan post office, and Gharyan University linked to its affiliated faculties. The study involved collecting fundamental system parameters, developing a theoretical model, and implementing it using OptiSystem 7.0. Using the same operational parameters, network performance was assessed based on key indicators such as signal quality, bit error rate (BER) and Q-factor. In addition, the FSO system was evaluated under two different environmental scenarios: Ideal weather conditions and Atmospheric turbulence conditions, reflecting the typical climatic characteristics of Gharyan city, 

where the city is frequently experiences windy atmospheric conditions. Simulation results demonstrate that the proposed systems are capable of efficient data transmission, enhancing the effectiveness of optical communications in the region. Both Optical Fiber and FSO networks achieved satisfactory performance; however, FSO showed superior performance in some metrics under ideal weather conditions. Some faculties had short links (≤ 2 km) that did not require precise point-to-point alignment, while others required accurate point-to-point links. In contrast, the findings indicate that FSO can serve as an effective and competitive alternative to optical fiber in environments with suitable climatic conditions, particularly when reducing deployment cost and installation time is a priority, while providing a scalable and sustainable solution to meet future communication requirements.