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Strain can significantly affect the electronic structure and functional properties of dilute magnetic semiconductors. As a wide bandgap transparent semiconductor, doped In2O3 has also received extensive attention for the modulation of physical properties by lattice strain due to its excellent functional properties. Here, we epitaxially grew the Cr:In2O3 thin film on the (111)-oriented 0.7Pb(Mg1/3Nb2/3)O3–0.3PbTiO3 (PMN–PT) ferroelectric single-crystal substrate. By applying an electric field to PMN–PT, multiple reversible and nonvolatile resistance states can be achieved at room temperature. Utilizing in situ XRD, different strain states corresponding to different resistance states induced by the ferroelastic domain switching of the PMN–PT were characterized. Based on first-principles calculations, the influence of lattice strain on the resistivity of the Cr:In2O3 was discussed. These results offer a route for the design of multiple-valued nonvolatile memory devices and multiple functional magneto-electric devices based on dilute magnetic semiconductors. [ABSTRACT FROM AUTHOR]

Depression comorbid with chronic diseases is common, especially among the older adults. We examine the health of the older adults in China and its relationship with depression, alone or as a comorbidity with chronic diseases. The sample we study includes 10,307 individuals aged 45 or above from the 2011 national wave of the China Health and Retirement Longitudinal Study (CHARLS). Using factor analysis, we obtain three factors out of eight health measurements that capture multiple dimensions of health of an older adult, with which we construct health scores and use as outcome variables. The three factors obtained from the factor analysis can, respectively, be interpreted as 'physical health', 'subjective health' and 'cognitive health'. We then apply a system equations approach to compare the disease effects. We find different chronic conditions are significantly associated with 'physical health' and 'subjective health' but not with 'cognitive health'. While the key chronic diseases have similar adverse effects on the first two health factors (except for the respiratory diseases), depression impairs subjective and physical health scores to a greater degree than do any chronic diseases. Comorbid depression is significantly associated with a reduction in the physical health score of the older adults, particularly for those with depression and cardiovascular diseases. In light of the increasing burden of chronic diseases and the underfunding-undertreatment situation of depression, health insurance coverage for depression should be improved to provide a more integrated mental health system. [ABSTRACT FROM AUTHOR]

This paper uses data from the China Health and Retirement Survey to estimate the causal effect child out‐migration has on the health of parents in China. For rural parents, we show that after controlling for self‐selection, child out‐migration has a detrimental effect not only on subjective well‐being and mental health but also on cognitive function and physical health when measured using a series of clinical tests and health biomarkers. In contrast, for urban parents, only a few health effects are significant, and those that are tend to be positive. In terms of the mechanism through which migration affects parental health, we find that it is differences in the level of physical support that parents require that is central to explaining many of the health effects we observe. For those who require little physical support, the income effect helps to mitigate the negative effects associated with child out‐migration, while for more vulnerable groups of parents, the economic benefits of migration are currently no substitute for the loss of informal support networks when a child migrates. [ABSTRACT FROM AUTHOR]