scholarly journals The South Korean Twin Registry: An Update

2012 ◽  
Vol 16 (1) ◽  
pp. 237-240 ◽  
Author(s):  
Yoon-Mi Hur ◽  
Hoe-Uk Jeong ◽  
Kee Wha Chung ◽  
Joong Sik Shin ◽  
Tae-Bok Song
Keyword(s):  
Population Group ◽  
Group Differences ◽  
Parallel Study ◽  
The South ◽  
Psychological Traits ◽  
South Korean ◽  
Twin Registry ◽  
Physical Traits ◽  
Assessment Measures ◽  
Future Plans

The South Korean Twin Registry (SKTR) is an ongoing nation-wide volunteer registry of South Korean twins and their families, which was established in the year 2001 to understand genetic and environmental etiologies of psychological and physical traits among South Koreans. Recently, the SKTR sampling has been extended in two important ways. First, we began to recruit twins from lower socio-economic families to study interaction effects of gene by environmental context. Second, as a parallel study of the SKTR, the Nigerian Twin and Sibling Registry was developed to understand the origin of the population group differences/similarities in psychological traits between South Koreans and Nigerians. This article summarizes the main findings (based on the SKTR sample to date), recruitment procedures, zygosity assessment, measures, and future plans for the SKTR.

scholarly journals The South Korean Twin Registry

2019 ◽  
Vol 22 (6) ◽  
pp. 606-608 ◽  
Author(s):  
Yoon-Mi Hur ◽  
Man Chull Kang ◽  
Hoe-Uk Jeong ◽  
Il Cook Kang ◽  
Jong Woo Kim
Keyword(s):  
Mental Health ◽  
Twin Studies ◽  
Developmental Differences ◽  
The South ◽  
South Korean ◽  
Twin Registry ◽  
Gene By Environment Interactions ◽  
Physical Traits ◽  
Genetic And Environmental Factors ◽  
Adult Twins

AbstractThe South Korean Twin Registry (SKTR) is an ongoing nationwide volunteer registry of South Korean twins and their families. Since its inception, from preschooler to young adult, twins have been registered with the SKTR and have demonstrated that relative influences of genetic and environmental factors explaining individual differences in various psychological, mental health and physical traits in South Koreans are similar to those found in many Western twin studies. Currently, studies at the SKTR focus on identification of the process of gene-by-environment interactions as well as developmental differences in genetic and environmental influences on psychological and mental health traits in South Koreans. This report provides a brief overview, recruitment strategies, current samples, zygosity assessment, measures and future directions of the SKTR.

The South Korean Twin Registry

2006 ◽  
Vol 9 (6) ◽  
pp. 838-843 ◽  
Author(s):  
Yoon-Mi Hur ◽  
Joong Sik Shin ◽  
Hoe-Uk Jeong ◽  
Jung Yeol Han
Keyword(s):  
Rural Areas ◽  
Target Population ◽  
Target Area ◽  
The South ◽  
Future Directions ◽  
South Korean ◽  
Disease Phenotypes ◽  
Twin Registry ◽  
History Of ◽  
Adult Twins

AbstractThe South Korean Twin Registry (SKTR), previously called the Seoul Twin Family Study, is a nationwide volunteer registry of South Korean twins and their families. Since 2002, the SKTR has been updated in 4 important ways. First, continued sampling led to an increase in the number of twins. Second, the target area, Seoul, was enlarged to include other cities and rural areas in the country. Third, the target population was extended from school-aged twins to preschool and adult twins. Fourth, the research focus was expanded to include psychiatric and physical disease phenotypes. The present article describes a brief history of the SKTR, goals and current research highlights, recent major accomplishments, and future directions.

The Nigerian Twin and Sibling Registry

2012 ◽  
Vol 16 (1) ◽  
pp. 282-284 ◽  
Author(s):  
Yoon-Mi Hur ◽  
Jong Woo Kim ◽  
Kee Wha Chung ◽  
Joong Sik Shin ◽  
Hoe-Uk Jeong ◽  
...  
Keyword(s):  
Cognitive Abilities ◽  
Birth Rate ◽  
Twin Studies ◽  
Recruitment Strategies ◽  
Parallel Study ◽  
Future Directions ◽  
South Korean ◽  
Twin Birth ◽  
Twin Registry ◽  
The World

Twin studies of Africans have been scarce although Africans have shown the highest twin birth rate in the world. As a parallel study of the South Korean Twin Registry, the Nigerian Twin and Sibling Registry (NTSR) was developed to understand causal influences on the development of cognitive abilities, personality, and mental health among Nigerians. Currently, 1,134 twins and 404 full- and half-siblings have been registered with NTSR. This article describes research background, goals, major recruitment strategies, measures, and future directions of the NTSR.

Revisiting Poverty, Human Development and Inequality in Democratic South Africa

2021 ◽  
pp. 097370302110329
Author(s):  
Vusi Gumede
Keyword(s):  
South Africa ◽  
Human Development ◽  
South African ◽  
Measurement Techniques ◽  
National Income ◽  
Population Group ◽  
Poverty Dynamics ◽  
The South ◽  
South African Society ◽  
Multidimensional Poverty Index

There are many questions related to poverty in South Africa that remain unsatisfactorily answered. Given the poor performance of the South African economy, including declining per capita incomes and increasing unemployment, since 2010 or so, it is important to examine poverty dynamics in the recent years. Many recent studies in this regard have relied on 2015 data, and do not examine all the three interrelated aspects of wellbeing viz. poverty, human development and inequality. In this context, this paper uses all the five waves of the National Income Dynamics Study and employs different poverty and inequality measurement techniques to investigate poverty dynamics, human development and inequality during the post-apartheid period in South Africa. The estimates suggest that although poverty was declining prior to the coronavirus pandemic, the African/Black population group is the most affected by poverty. The phenomenon of feminisation of poverty is also verified based on the evidence of increasingly more women in poverty than men. The proportion of population experiencing multiple deprivations, measured by the Multidimensional Poverty Index, have not changed in the post-apartheid period. Similarly, human development has not improved during this period. South African society continues to be one of the most unequal societies in the world. The paper argues that the inability to sufficiently reduce poverty, unemployment and inequality results from the weak performance of the South African economy. In the same vein, it is the structure of the South African economy that has kept the levels of human development low and income inequality high.

scholarly journals Exploring the Role of Family and School as Spaces for 1.5 Generation South Korean’s Adjustment and Identity Negotiation in New Zealand: A Qualitative Study

2020 ◽  
Vol 17 (12) ◽  
pp. 4408
Author(s):  
Su Yeon Roh ◽  
Ik Young Chang
Keyword(s):  
New Zealand ◽  
Identity Negotiation ◽  
Identity Status ◽  
Traditional Values ◽  
The South ◽  
1.5 Generation ◽  
South Korean ◽  
The Family ◽  
Home And School ◽  
At Home

To date, the majority of research on migrant identity negotiation and adjustment has primarily focused on adults. However, identity- and adjustment-related issues linked with global migration are not only related to those who have recently arrived, but are also relevant for their subsequent descendants. Consequently, there is increasing recognition by that as a particular group, the “1.5 generation” who were born in their home country but came to new countries in early childhood and were educated there. This research, therefore, investigates 1.5 generation South Koreans’ adjustment and identity status in New Zealand. More specifically, this study explores two vital social spaces—family and school—which play a pivotal role in modulating 1.5 generation’s identity and adjustment in New Zealand. Drawing upon in-depth interviewing with twenty-five 1.5 generation Korean-New Zealanders, this paper reveals that there are two different experiences at home and school; (1) the family is argued to serve as a key space where the South Korean 1.5 generation confirms and retains their ethnic identity through experiences and embodiments of South Korean traditional values, but (2) school is almost the only space where the South Korean 1.5 generation in New Zealand can acquire the cultural tools of mainstream society through interaction with English speaking local peers and adults. Within this space, the South Korean 1.5 generation experiences the transformation of an ethnic sense of identity which is strongly constructed at home via the family. Overall, the paper discusses that 1.5 generation South Koreans experience a complex and contradictory process in negotiating their identity and adjusting into New Zealand through different involvement at home and school.

scholarly journals Meat Demand in South Korea: An Application of the Restricted Source-Differentiated Almost Ideal Demand System Model

2007 ◽  
Vol 39 (1) ◽  
pp. 47-60 ◽  
Author(s):  
Shida Rastegari Henneberry ◽  
Seong-huyk Hwang
Keyword(s):  
United States ◽  
South Korea ◽  
The United States ◽  
System Model ◽  
Demand System ◽  
Almost Ideal Demand System ◽  
The South ◽  
Meat Demand ◽  
South Korean ◽  
Meat Market

The first difference version of the restricted source-differentiated almost ideal demand system is used to estimate South Korean meat demand. The results of this study indicate that the United States has the most to gain from an increase in the size of the South Korean imported meat market in terms of its beef exports, while South Korea has the most to gain from this expansion in the pork market. Moreover, the results indicate that the United States has a competitive advantage to Australia in the South Korean beef market. Results of this study have implications for U.S. meat exports in this ever-changing policy environment.

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