Model-assisted calibration with SCAD to estimated control for non-probability samples

Statistical Methods & Applications - Non-probability samples have been used in various fields in recent years. However, they usually can result in biased estimates. Calibration to estimated...     

激光角散射式微粒测量装置及其测量结果的单值性讨论

本文讨论了以激光为光源的角散射式微粒测量装置的工作原理及其优点,并在大量分析国内外研制生产的该种测量装置的基础上,指出了在单散射角下对颗粒进行检测时,存在着测量结果出现多值性的可能,文中讨论了解决这一关键技术问题所采取的可能方案和措施。     

Ageing,migration infrastructure and multi-generational care dynamics in transnational families

The analysis of transnational family relations from an intergenerational to a multi-generational perspective highlights the significant role migration infrastructure plays in transnational family care arrangements at different family life stages. Changing migration policies and local-bound welfare systems in the host and home countries tend to fixate the role of care-receiver and provider against fluid transnational family care dynamics as the life course of the family unfolds. This paper focuses on Chinese transnational one-child families in which the initial separation between parents and their only-child was motivated by the child's overseas education, and followed by the adult child's employment and family formation in the UK. My findings illustrate how reified definitions of the family and familial roles structure mobile individuals’ access to family rights in a transnational context. They warn of the danger of entrenched injustice embedded in the definitional classification of family migrants.