Ibrahim M. Gosadi^*

International Journal of Mental Health Promotion, Vol.27, No.1, pp. 41-49, 2025, DOI:10.32604/ijmhp.2024.059822 - 31 January 2025

Abstract Objective: There is conflicting evidence suggesting an association between Ramadan and mental health. Aim: This study aims to assess changes in depression, anxiety, and stress levels during Ramadan among university students from Saudi Arabia and to measure the magnitude of change in these levels according to gender. Methods: This study is a prospective cohort study. Data was collected using a structured questionnaire that measured demographic data of the students, and levels of depression, anxiety, and stress utilizing the short form of the Depression Anxiety Stress Scales questionnaire (DASS 21). The assessments were performed starting from the… More >

Yifei Yin, Lirong Qu, Weidong Lu^*, Chengshuai Li

Journal of Renewable Materials, Vol.10, No.6, pp. 1517-1535, 2022, DOI:10.32604/jrm.2022.018149 - 20 January 2022

Abstract Creep test results of glulam members under compression and bending were studied in this paper. The creep tests were conducted to investigate the influence of the stress level and relative eccentricity on the creep deformation of glulam members. The test results showed that the creep deformation trends of glulam members under long-term compression and bending loading were similar; the creep deformation increased with increases in both the stress level and relative eccentricity. However, the relative creep deformation decreased with the increase in both the stress level and relative eccentricity under long-term loading, and a five-parameter… More > Graphic Abstract

Wei Chen^1,2, Qiuju Zhang^1,2,*, Han Cao^1,2, Ye Yuan^1,2

Journal of Renewable Materials, Vol.10, No.2, pp. 329-358, 2022, DOI:10.32604/jrm.2022.016374 - 30 August 2021

Abstract The aim of this article was to comprehensively evaluate the manufacturing process, tensile properties and fatigue resistance of the chopped and continuous fiber reinforced thermoplastic composites (CFRTPCs) by 3D printing. The main results included: the common defects of the printed CFRTPCs contained redundant and accumulation defects, scratch and warping defects; the continuous fiber contributed to the dimensional stability and accuracy of width and thickness; associations between mass percentage of fiber reinforcement and the averages of elastic modulus, strain at break and ultimate tensile strength were approximately linear based on tensile test results; the fatigue resistance… More > Graphic Abstract