Introduction The term "volunteering" refers to any endeavor in which one's time is devoted voluntarily to the benefit of another individual, group, or organization, and without the expectation of receiving compensation. Several studies have discovered that engagement in volunteer work is substantially predictive of improved mental and physical health, self-esteem, diminished depressive symptoms, and psychological distress, in addition to having a positive correlation with mental well-being. Aim The objective of this study was to investigate the correlation between medical student participation in volunteer work and their mental well-being.
View Article and Find Full Text PDFBackground: Academic achievement is essential for all students seeking a successful career. Studying habits and routines is crucial in achieving such an ultimate goal.
Objectives: This study investigates the association between study habits, personal factors, and academic achievement, aiming to identify factors that distinguish academically successful medical students.
The nonlinear effects of thermal radiation on the free convection flow of certain nanofluids along a heated wall are studied numerically using an original finite-difference method. Nanofluids are used to improve the performance of flat and curved integrated photovoltaic modules. The partial differential equations governing the flow are difficult to solve due to the strong non-linearity of the radiative term.
View Article and Find Full Text PDFObjectives: Being a checkpoint, the expression level of V-set immunoregulatory receptor (VSIR) serves as an indicator of the extent of immunosuppression. Our objective was to undertake a pan-cancer analysis to examine the expression, genetic alterations, prognosis, and immunologic features associated with VSIR.
Methods: The Cancer Genome Atlas (TCGA), Genotype-Tissue Expression (GTEx), GEPIA2, UALCAN, OncoDB, Human Protein Atlas (HPA), STRING, DAVID, cell culture, clinical sample collection, and reverse transcription quantitative polymerase chain reaction (RT-qPCR) were used.
Background: Osteoporosis (OP) stands as a prevalent bone ailment affecting the elderly, globally. The identification of reliable diagnostic markers crucially aids OP clinical management.
Methods: Utilizing the GEO database (GSE35959), we acquired expression profiles for OP and normal samples.
Introduction: Hypertrophic cardiomyopathy (HCM) is a heterogeneous disease that mainly affects the myocardium. In the current study, we aim to explore HCM-related hub genes through the analysis of differentially expressed genes (DEGs) between HCM and normal sample groups.
Methods: The GSE68316 and GSE36961 expression profiles were obtained from the Gene Expression Omnibus (GEO) database for the identification of DEGs, to explore hub genes, and to perform their expression analysis.
Introduction: Maintaining continuity of care is one of the most critical components of providing great care in primary health care. This study aimed to explore continuity of care and its predictors in primary healthcare settings among patients with chronic diseases in Saudi Arabia.
Method: Face-to-face cross-sectional interviews were conducted with patients with chronic diseases who had at least four visits to primary care facilities in Riyadh, Saudi Arabia, between November 1, 2022 and March 3, 2023.
Porous TiO-doped polyaniline and polyaniline nanocomposite fibers prepared by the in situ polymerization technique using anionic surfactant in an ice bath were studied. The prepared nanocomposites were characterized by FTIR spectroscopy and XRD patterns for structural analysis. The surface morphology of the polyaniline and its nanocomposites was examined using SEM images.
View Article and Find Full Text PDFThe term hypnic jerks (also known as sleep starts or hypnagogic jerks) refers to a physiological phenomenon that accompanies sleep-wake transitions and can occur in healthy individuals of any age. Various physiological and stressful stimuli can precipitate hypnic jerks and contribute to their frequency and amplitude, e.g.
View Article and Find Full Text PDFBackground: Post-traumatic stress disorder (PTSD) is a psychiatric disease characterized by exposure to threatened death or serious injury and directly experiencing or witnessing the event. Many healthcare professionals have had PTSD, but emergency physicians may be particularly susceptible. To our knowledge, no study has been performed in Saudi Arabia to identify the prevalence and associated risk factors of PTSD among emergency staff.
View Article and Find Full Text PDFObjectives: The regulation of various cellular functions such as growth, proliferation, metabolism, and angiogenesis, is dependent on the PI3K pathway. Recent evidence has indicated that kidney renal clear cell carcinoma (KIRC) can be triggered by the deregulation of this pathway. The objective of this research was to investigate 25 genes associated with activation of the PI3K pathway in KIRC and control samples to identify four hub genes that might serve as novel molecular biomarkers and therapeutic targets for treating KIRC.
View Article and Find Full Text PDFObjectives: To measure the prevalence of low self-esteem among medical students in Saudi Arabia and determine its impact on their behaviors and academic achievement.
Methods: We hypothesized that the level of self-esteem reflected on the student's academic performance and linked to some of their behaviors. A cross-sectional study was carried out among students of the medical colleges in Saudi Arabia.
Head and neck squamous cell carcinoma (HNSC) is the 6 most common cancer around the globe; its underlying molecular mechanisms and accurate molecular markers are still lacking. In this study, we explored hub genes and their potential signaling pathways through which these genes participate in the development of HNSC. The GSE23036 gene microarray dataset was attained from the GEO (Gene Expression Omnibus) database.
View Article and Find Full Text PDFThe efficiency of solar panels decreases as the temperature increases and heat dissipation becomes a serious problem in hot environments such as the Arabian desert. This paper investigates the use of a phase change material (PCM-OM37P) to maintain panel temperatures close to ambient. The enhancement of the GCL-P6/60265W solar panel efficiency was demonstrated at the University of Tabuk Renewable Energy and Energy Efficiency Center (REEEC).
View Article and Find Full Text PDFBackground/aim: DNA methylation is the most studied epigenetic modification in cancer. Ten-eleven translocation enzymes (TET) catalyze the oxidation of 5-methylcytosine (5-mC) to 5-hydroxymethylcytosine (5-hmC) in the DNA. In the current research, we aimed to evaluate the role of 5-hmC and TET enzymes in non-small cell lung cancer (NSCLC) patients and their possible association with outcomes.
View Article and Find Full Text PDFBackground: The coronavirus disease 2019 (COVID-19) pandemic had a devastating effect on college students worldwide. Here, the authors aimed to determine the prevalence of anxiety and its related coping strategies, provide a theoretical basis for understanding self-prescription, and identify the factors contributing to stress and anxiety in medical students during the pandemic.
Methods: The authors conducted a cross-sectional study among medical students in Saudi Arabia from September to November 2020.
This paper aimed to investigate the temperature effect on photovoltaic (PV) cell parameters. The PV cell parameters such as series and parallel resistances, diode ideality factor, and diode saturation current, are not considered in the reported stepwise modeling. The present work aims to improve available models used in the modeling and simulation of PV modules to support the researcher and power project developer.
View Article and Find Full Text PDFListeriosis is one of the most common foodborne diseases caused by (). A poor prognosis has been recorded for the invasive listeriosis, especially neurolisteriosis. In several countries throughout the world, foodborne infections with exceeded the legal safety limits in animal sourced foods.
View Article and Find Full Text PDFObjectives: To assess the prevalence of alexithymia and its associated factors among medical students at King Saud University (KSU), Riyadh, Kingdom of Saudi Arabia.
Methods: A cross-sectional study was conducted at KSU, including 420 medical students from all years of medical college (i.e.
In this work, solid flexible polymer blend electrolytes (PBE) composed of polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP) with different amounts of sodium thiocyanate (NaSCN) salt mixed in double-distilled water (solvent) are prepared via solution casting method. The obtained films are characterized using several techniques. The study of the surface morphology of the polymer blend salt complex films via the POM technique reveals the presence of amorphous regions due to the NaSCN effect.
View Article and Find Full Text PDFIn this research, a new biodegradable and eco-friendly adsorbent, starch-grafted polymethyl methacrylate (St-g-PMMA) was synthesized. The St-g-PMMA was synthesized by a free radical polymerization reaction in which methyl methacrylate (MMA) was grafted onto a starch polymer chain. The reaction was performed in water in the presence of a potassium persulfate (KPS) initiator.
View Article and Find Full Text PDFIn recent decades, the enhancement of the properties of electrolytes and electrodes resulted in the development of efficient electrochemical energy storage devices. We herein reported the impact of the different polymer electrolytes in terms of physicochemical, thermal, electrical, and mechanical properties of lithium-ion batteries (LIBs). Since LIBs use many groups of electrolytes, such as liquid electrolytes, quasi-solid electrolytes, and solid electrolytes, the efficiency of the full device relies on the type of electrolyte used.
View Article and Find Full Text PDFObjectives: To assess psychiatrists' knowledge and perception regarding telepsychiatry and evaluate their willingness to adopt telepsychiatry clinical practice in Saudi Arabia.
Methods: A cross-sectional study was conducted among psychiatrists working in Saudi Arabia from November 2020 through May 2021. A self-administered questionnaire comprising socio-demographic data, factors related to knowledge, perception, willingness, barriers, and the effectiveness of telepsychiatry, was distributed via.
Combining two types of reinforcement fiber in a common matrix may lead to different failure modes such as micro-cracks between the layers when the structure is subjected to lower stress levels. Real-time damage detection should be integrated into the hybrid composite structure to provide structural integrity and mitigate this problem. This paper outlines the working mechanisms and the fabrication of an integrated capacitive sensor in an intra-ply hybrid composite (2 × 2 twill weave).
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