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231.
Ethnically harassed immigrant youth are at risk for experiencing a wide range of school adjustment problems. However, it is still unclear why and under what conditions experiencing ethnic harassment leads to school adjustment difficulties. To address this limitation in the literature, we examined two important questions. First, we investigated whether self-esteem and/or depressive symptoms would mediate the associations between ethnic harassment and poor school adjustment among immigrant youth. Second, we examined whether immigrant youths’ perception of school context would play a buffering role in the pathways between ethnic harassment and school adjustment difficulties. The sample (n = 330; M age  = 14.07, SD = .90; 49 % girls at T1) was drawn from a longitudinal study in Sweden. The results revealed that experiencing ethnic harassment led to a decrease in immigrant youths’ self-esteem over time, and that youths’ expectations of academic failure increased. Further, youths’ relationships with their teachers and their perceptions of school democracy moderated the mediation processes. Specifically, when youth had poor relationships with their teachers or perceived their school context as less democratic, being exposed to ethnic harassment led to a decrease in their self-esteem. In turn, they reported low school satisfaction and perceived themselves as being unsuccessful in school. Such indirect effects were not observed when youth had high positive relationships with their teachers or perceived their school as offering a democratic environment. These findings highlight the importance of understanding underlying processes and conditions in the examination of the effects of ethnic devaluation experiences in order to reach a more comprehensive understanding of immigrant youths’ school adjustment.  相似文献   
232.
The complex historical relationship between commercial agriculture and capitalist transformation is examined here by looking critically at cotton production in two areas of the Ottoman empire during the nineteenth century. Cotton became important economically on large farms established to meet increasing foreign demand. In Egypt, which was a major region of the southern empire, a state monopoly was established under the control of a governor with the object of participating in the growing foreign trade in cotton-based products. These attempts did not, however, lead to a transformation of rural property relations in Ottoman agriculture. This process of commercialisation led much rather to the consolidation of petty commodity production, not least because of its economic role as a source of labour-power.  相似文献   
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