The collective behaviors of two coupled harmonic oscillators with dichotomous fluctuating frequency are investigated,inc......

认知诊断模型超过100种,在实际中选择合适的模型进行数据分析是十分重要的.本文针对0-1评分的认知诊断模型,提出2个项目拟合指标,......

Recently, 90 tons of human waste per day are collected from private residences, offices, and public facilities in Da Nan......

This study explored cross-cultural differences between Japan and Russia in terms of women’s body images, proneness to e......