• Title/Summary/Keyword: young inequality

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SOME GENERALIZATION OF MINTY'S LEMMA

  • Jung, Doo-Young
    • The Pure and Applied Mathematics
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    • v.6 no.1
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    • pp.33-37
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    • 1999
  • We obtain a generalization of Behera and Panda's result on nonlinear scalar case to the vector version.

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Variational-Type Inequalities on Reflexive Banach Spaces

  • Lee, Byung-Soo;Lee, Suk-Jin;Jung, Doo-Young
    • Communications of Mathematical Education
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    • v.8
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    • pp.273-278
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    • 1999
  • In this paper, we consider the existence of solutions to the variational-type inequalities for single-valued mappings and set-valued mappings on reflexive Banach spaces using Fan's section theorem.

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STRONG CONVERGENCE OF PATHS FOR NONEXPANSIVE SEMIGROUPS IN BANACH SPACES

  • Kang, Shin Min;Cho, Sun Young;Kwun, Young Chel
    • Korean Journal of Mathematics
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    • v.19 no.3
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    • pp.279-289
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    • 2011
  • Let E be a uniformly convex Banach space with a uniformly Gateaux differentiable norm, C be a nonempty closed convex subset of E and f : $C{\rightarrow}C$ be a fixed bounded continuous strong pseudocontraction with the coefficient ${\alpha}{\in}(0,1)$. Let $\{{\lambda}_t\}_{0<t<1}$ be a net of positive real numbers such that ${\lim}_{t{\rightarrow}0}{\lambda}_t={\infty}$ and S = {$T(s)$ : $0{\leq}s$ < ${\infty}$} be a nonexpansive semigroup on C such that $F(S){\neq}{\emptyset}$, where F(S) denotes the set of fixed points of the semigroup. Then sequence {$x_t$} defined by $x_t=tf(x_t)+(1-t)\frac{1}{{\lambda}_t}{\int_{0}}^{{\lambda}_t}T(s)x{_t}ds$ converges strongly as $t{\rightarrow}0$ to $\bar{x}{\in}F(S)$, which solves the following variational inequality ${\langle}(f-I)\bar{x},\;p-\bar{x}{\rangle}{\leq}0$ for all $p{\in}F(S)$.

Emerging Gender Issues in Korean Online Media: A Temporal Semantic Network Analysis Approach

  • Lee, Young-Joo;Park, Ji-Young
    • Journal of Contemporary Eastern Asia
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    • v.18 no.2
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    • pp.118-141
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    • 2019
  • In South Korea, as awareness of gender equality increased since the 1990s, policies for gender equality and social awareness of equality have been established. Until recently, however, the gap between men and women in social and economic activities has not reached the globally desired level and led to social conflict throughout the country. In this study, we analyze the content of online news comments to understand the public perception of gender equality and the details of gender conflict and to grasp the emergence and diffusion process of emerging issues on gender equality. We collected text data from the online news that included the word 'gender equality' posted from January 2012 to June 2017 and also collected comments on each selected news item. Through text mining and the temporal semantic network analysis, we tracked the changes in discourse on gender equality and conflict. Results revealed that gender conflicts are increasing in the online media, and the focus of conflict is shifting from 'position and role inequality' to 'opportunity inequality'.

Status and Challenges of Korean Out of School Children Health Check-up (한국 학교 밖 청소년 건강검진의 현황과 과제)

  • Kim, YangHee
    • The Journal of the Korea Contents Association
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    • v.19 no.7
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    • pp.546-558
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    • 2019
  • Health inequality means health gaps that can be affected adverse effects to the vulnerable groups in a society. Many scholars argue that it is needed social interventions to reduce health gaps between the vulnerable and the privileged in a society, because social inequalities can be caused and resulted health inequality among them. In this context, this article introduces Korean out of school children health check-up as part of the policies to reduce health inequality in the society. For a long time, many out of school children have been alienated from the national health checkup systems. That means they are not only marginalized groups in Korean society, but also excluded from the benefits of health promotion and health management. Many runaway youths are struggling to live by themselves, who are escaped from their families and they don't have enough resources to keep their health. They are also young and low waged workers who are expelled to the streets, while they don't have any support and protection from the communities. Out of school children health checkup has been conducted to the adolescents who stay in the shelters or study in alternative schools. To get meaningful results as the health inequality reduction policy, it is needed to expand out of children health checkup to the runaway teenagers.

On the analysis and correction of error for the simultaneous inequality with two unknown quantities (미지수가 2개인 연립일차부등식의 문제해결과정에서 발생하는 오류 분석 및 지도방안 연구)

  • Jun, Young-Bae;Roh, Eun-Hwan;Kim, Dae-Eui;Jung, Chan-Sik;Kim, Chang-Su;Kang, Jeong-Gi;Jung, Sang-Tae
    • Communications of Mathematical Education
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    • v.24 no.3
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    • pp.543-562
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    • 2010
  • The purpose of this thesis is to analyze the error happening in the process of solving the simultaneous inequality with two unknown qualities and to propose the correct teaching method. We first introduce a problem about the simultaneous inequality with two unknown qualities. And we will see the solution which a student offers. Finally we propose the correct teaching method by analyzing the error happening in the process of solving the simultaneous inequality with two unknown qualities. The cause of the error are a wrong conception which started with the process of solving the simultaneous equality with two unknown qualities and an insufficient curriculum in connection with the simultaneous inequality with two unknown qualities. Especially we can find out the problem that the students don't look the interrelation between two valuables when they solve the simultaneous inequality with two unknown qualities. Therefore we insist that we must teach students looking the interrelation between two valuables when they solve the simultaneous inequality with two unknown qualities.

Gender, Professional and Non-Professional Work, and the Changing Pattern of Employment-Related Inequality in Poor Self-Rated Health, 1995-2006 in South Korea

  • Kim, Il-Ho;Khang, Young-Ho;Cho, Sung-Il;Chun, Hee-Ran;Muntaner, Carles
    • Journal of Preventive Medicine and Public Health
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    • v.44 no.1
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    • pp.22-31
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    • 2011
  • Objectives: We examined gender differential changes in employment-related health inequalities according to occupational position (professional/nonprofessional) in South Korea during the last decade. Methods: Data were taken from four rounds of Social Statistical Surveys of South Korea (1995, 1999, 2003, and 2006) from the Korean National Statistics Office. The total study population was 55435 male and 33913 female employees aged 25-64. Employment arrangements were divided into permanent, fixed-term, and daily employment. Results: After stratification according to occupational position (professional/nonprofessional) and gender, different patterns in employment - related health inequalities were observed. In the professional group, the gaps in absolute and relative employment inequalities for poor self-rated health were more likely to widen following Korea's 1997 economic downturn. In the nonprofessional group, during the study period, graded patterns of employment-related health inequalities were continuously observed in both genders. Absolute health inequalities by employment status, however, decreased among men but increased among women. In addition, a remarkable increase in relative health inequalities was found among female temporary and daily employees (p = 0.009, < 0.001, respectively), but only among male daily employees (p = 0.001). Relative employment-related health inequalities had clearly widened for female daily workers between 2003 and 2006 (p = 0.047). The 1997 Korean economic downturn, in particular, seemingly stimulated a widening gap in employment health inequalities. Conclusions: Our study revealed that whereas absolute health inequalities in relation to employment status increased in the professional group, relative employment-related health inequalities increased in the nonprofessional group, especially among women. In view of the high concentration of female nonstandard employees, further monitoring of inequality should consider gender specific patterns according to employee's occupational and employment status.