Children from distressed families show poor social adaptation, and are more vulnerable to peer bullying and likely to experience social adjustment problems. Based on the survey data of “Research on Children's Health Problems in Distressed Families”, this paper focuses on the prosocial behavior of children with disabled or severely disabled parents, and explores the causes of their prosocial behavior problems from the perspective of family function. The results show that children with disabled parents perform worse prosocial behavior than ordinary children. Further analysis suggests that having parents with severe disabilities has negative impacts on children's nutritional diets, family living environment and family education. The negatively affected family education status further leads to children's worse prosocial behavior. Therefore, we should focus on the implementation of “family responsibilities” for children from distressed families, improve their family functions, thus promote their social adaptation and ensure their comprehensive development.

 In order to understand the life satisfaction status and the correlation between social support and life satisfaction of young migrants，and to provide theoretical basis for formulating targeted management and service measures，a questionnaire survey was conducted in March to May 2015．A total of 2998 qualified young migrants were selected and analyzed．The results show that young migrants in different regions have significantly different life satisfaction，with the life satisfaction in Beijing being the highest．Social support has significant positive influence on life satisfaction．Migration type，education， economic situation and health status have significant impact on life satisfaction of young migrants．Thus government departments should collaborate and combine with the specific situation of different regions to provide effective social support and improve life satisfaction of young migrants and social stability．

Utilizing the data of the 2010 survey on the health awareness of young migrant workers，this article investigates the condition of health integration and its influencing factors of the new-generation migrant workers. Results show that 21. 4% of the new-generation migrant workers rate their current health condition being better than that before migration，while 64.0% and 14.6% of the population regard their current health status being the same or worse respectively. The multi-variate analyses demonstrate that health condition tends to become better among men，among those whose sleeping time is at least 8 hours，and among those whose parents are both healthy，whereas health condition trends to become worse among the young migrant workers whose floating time is 5 years or over，and among those under greater pressure. The degree of health integration of the new-generation migrant workers is quite low，and therefore it is necessary to take actions to promote their health.

To investigate socio － demographic characteristics of the social support and to provide information for establishing a health promotion pattern of social support among the new generation migrants in China，a questionnaire survey was conducted among 2271 new generation migrants and 997 local residents in 2010．The average of the total scores in social support is ( 33．81 ± 5．09) ，involving three dimensions which are objective support，subjective support and utilization of support whose average score are ( 5．71 ± 1．50) ，( 21．28 ± 3．88) and ( 6．82 ± 1．80) respectively．Migrants have significantly lower levels in overall social support，objective support，and utilization of support than local residents． Marital status has significant impact on social support，that is，married migrants have markedly higher social support level than those unmarried．While social support generally tends to be low in the new generation migrants，marriage has some advantages in receiving social support．

 This paper analyzes articles published in Population Research from 1977 to 2008 using the methods of literature metrology. The results showed that first,this journal contains a large number of articles with a wide range of research areas,but a lower number of funded papers. Second,it embrases high-quality authors from various regions,particuarly those in academia (e.g.,universities and research institutes). Finallly,the trend of collaborations has risen,and cited papers have increased gradually. The result suggested that this journal is an excellent academic journal in China,but there is room to improve.