Migration and Adaptation as Indicators of Social Mobility Migrants

Social Interaction, Survival Stress and Smoking Behavior of Migrant Workers in China-An Empirical Analysis Using CHARLS Data from 2013-2018

Smoking is a major public health problem in most countries and usually occurs in marginalized groups. Analyzing the smoking behavior of migrant workers, a marginalized group in China, is of practical significance. Using panel data from the China Health and Retirement Longitudinal Study (CHARLS) database from 2013 to 2018, this study examined influence factors of smoking behavior (whether to smoke and smoking frequency) among migrant workers in China through the Heckman two-stage model. The results showed that the smoking rates of migrant workers were positively associated with social activity and a sense of loneliness, while smoking frequency was negatively associated with work stress and life satisfaction. Meanwhile, smoking behavior was associated with the demographic variables such as gender, age, and education level. Gender differences in smoking behavior were particularly notable among Chinese migrant workers. Furthermore, there was regional heterogeneity in smoking behavior among migrant workers. Smoking behavior in the eastern region was mainly influenced by psychological factors of wellbeing, such as social activity and life satisfaction, while it was affected by material conditions such as income in the central-western region. Effective strategies to control tobacco use among migrant workers are proposed in order to promote social integration between urban and rural residents, increase vocational education and training, and strengthen anti-smoking propaganda among migrant workers.

HLA allele and haplotype frequencies in Kazakhstani Russians and their relationship with other populations

HLA class I and class II genotypes from 947 Kazakhstani individuals of Russian origin were analyzed for investigating their most likely origin. The results were compared with similar data from other Russians (East and West), and also Worldwide populations, using standard genetic distances, neighbor-joining dendrograms, correspondence and haplotype analysis. Of the five HLA loci analyzed (HLA-A, HLA-C, HLA-B, HLA-DRB1, and HLA-DQB1) genotyped, 216 HLA alleles were identified. The most frequent alleles were A*02:01 (26.5%), B*07:02 (11.1%), C*04:01 (13.5%) and C*06:02 (12.1%), DRB1*07:01 (13.8%) and DRB1*15:01 (12.2%), and DQB1*03:01 (19.7%). Significant linkage disequilibrium was noted between all HLA pairs. DRB1*15:01 ~ DQB1*06:02 (10.5%), B*07:02 ~ C*07:02 (10.0%), B*07:02 ~ DRB1*15:01 (6.3%), and A*01:01 ~ B*08:01 (4.5%) were the most frequent two-locus haplotypes identified. Subsequent analyses showed that Kazakhstani Russians were closely related to West Russia-residing populations (Northwest Slavic, Vologda, Chelyabinsk, Moscow), East Europeans (Belarus Brest, Ukraine, Poland) and Scandinavians (Swedish, Finns), but distinct from East Russia-residing populations (Tuvians, Siberians from Chukotka, Kamchatka, and Ulchi) and East Mediterraneans (Levantines, Turks, North Macedonians, Albanians), and East Asians (Koreans, Japanese, Taiwanese, Mongolians). These results are in accordance with historical data indicating that the Russians of central Asia originate mainly from European Russia during the migratory flow of 18th and 19th centuries.

Spatial Transformation of a New City in 2006–2020: Perspectives on the Spatial Dynamics, Environmental Quality Degradation, and Socio—Economic Sustainability of Local Communities in Makassar City, Indonesia

The accelerated development of new urban areas has an impact on changes in the spatial use and complexity of ecosystems. The purpose of this study is to analyze (1) spatial transformation works as a determinant of changes in the social formation of local communities in the new city area of Metro Tanjung Bunga; (2) process of social interaction and social adaptation between immigrants and local communities in new social formations in the new city area of Metro Tanjung Bunga; and (3) the effect of spatial use, changes in social formation, and work differentiation on the socio-economic sustainability of local communities. The research method used involves a combination of qualitative and quantitative approaches. Data were obtained by observation, in-depth interviews, surveys, and documentation. The results of the study show that spatial transformation has an impact on changing the single social formations of local communities into multiple social formations and transforming differences in modes of production between migrants and local communities into changes in the order of life of local communities. These changing interactions and social adaptations cause changes in the social structures and cultural patterns of local communities. Furthermore, changes in spatial use, social formation, and job differentiation have a significant effect on the socio-economic sustainability of local communities, with a coefficient of determination of 97.7%. This study recommends considering environmental, economic, and sociocultural factors followed by government decision-making for the future development of the new city area of Metro Tanjung Bunga, Makassar City.