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Kwok Kei Mak,Jaeseung Jeong,Hye-Kyung Lee,Kounseok Lee 대한신경정신의학회 2018 PSYCHIATRY INVESTIGATION Vol.15 No.11
Objective This study examined the mediating role of internet addiction in the association between psychological resilience and depressive symptoms. Methods 837 Korean university students completed a survey with items of demographic information, Connor-Davidson Resilience Scale (CD-RISC), Internet Addiction Test (IAT), and Patient Health Questionnaire (PHQ-9) in 2015. The complex associations among psychological resilience, internet addiction, and depressive symptoms were delineated using structural equation models. Results In the most parsimonious model, the total effect and indirect effect of resilience on depressive symptoms via internet addiction, were statistically significant. The goodness of fit of the measurement model was satisfactory with fit indices, normed fit index (NFI) of 0.990, non-normed fit index (NNFI) of 0.997, comparative fit index (CFI) of 0.998, root mean square error (RMSEA) of 0.018 (90%CI=0.001–0.034); and Akaike Information Criterion (AIC) of -21.049. Conclusion The association between psychological resilience and depressive symptoms was mediated by internet addiction in Korean university students. Enhancement of resilience programs could help prevent internet addiction and reduce the related depression risks.
Kwok Wai Chan 서울대학교 교육연구소 2009 Asia Pacific Education Review Vol.10 No.4
Three hundred and seven teacher education students of a Hong Kong university were administered two questionnaires, one measuring emotional autonomy (EAS) and the other measuring perceived parenting styles (PAQ) of their parents. It was found that the Hong Kong teacher education students tended to be autonomous and they characterized their parents as authoritative instead of authoritarian. In addition, the emotional autonomy scale was positively related to authoritarianism, but negatively related to authoritativeness and permissiveness of parenting. Emotional detachment instead of autonomy seemed to be a more appropriate meaning of EAS for the interpretation of results. Implications were drawn for future research including development of an improved instrument in measuring emotional autonomy to study its associations with perceived parenting styles of young people across cultures.
Kwok, SK,Shin, YJ,Kim, HJ,Kim, HS,Kim, JY,Yoo, SA,Choi, JJ,Kim, WU,Cho, CS SAGE Publications 2009 Lupus Vol.18 No.2
<P>Patients with antiphospholipid syndrome (APS) have an increased risk for the development of thrombotic complications. Recent studies indicate that osteoprotegerin (OPG) acts as an important molecule in the development of vascular diseases. The aim of the present study was to examine the association between serum OPG levels and APS manifestations in patients with SLE. Seventy-nine patients with SLE and ninety-two healthy controls, matched for age and sex, were included in this study. Serum levels of OPG, monocyte chemoattractant protein(MCP)-1 and soluble E-selectin were determined by ELISA. At the time of serum sampling, various clinical and laboratory parameters were assessed. We found that serum levels of OPG were significantly higher in patients with SLE than in healthy controls (1236?±?82 vs 967?±?37?pg/mL, <I>P</I>?=?0.003). Particularly, serum OPG levels were significantly higher in SLE patients with APS than those without (1615?±?191 vs 1171?±?91?pg/mL, <I>P</I>?=?0.006). Serum OPG levels correlated with titres of IgG anti-cardiolipin antibody (<I>P</I>?=?0.026) and anti-β<SUB>2</SUB>-glycoprotein I antibody (<I>P</I>?<?0.001). Moreover, serum OPG also correlated with serum levels of sE-selectin (<I>P</I>?=?0.002), which is an endothelial cell activation marker, and MCP-1 (<I>P</I>?=?0.003), a well known chemokine implicated in thrombogenesis. Collectively, serum OPG levels were increased in SLE patients with APS and correlated with titres of antiphospholipid antibodies, suggesting that OPG might be linked to the development of APS.</P>
Kwok, Seung-Ki,Seo, Soo-Hong,Ju, Ji Hyeon,Yoon, Chong-Hyeon,Park, Soo Chul,Kim, Bum Soo,Kim, Ho-Youn,Park, Sung-Hwan The Korean Academy of Medical Sciences 2008 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.23 No.1
<P>Cryptococcal meningitis is a rare complication of systemic lupus erythematosus (SLE). The nonspecific neurologic findings associated with this infection delays accurate diagnosis because initial neuropsychiatric manifestations of SLE are in instances indistinguishable from that of crytococcal meningitis. We report a case of cryptococcal meningitis presenting with unilateral sixth cranial nerve palsy in a male patient with SLE, which was successfully treated with antifungal agents.</P>
Integral operators on Ces\`{a}ro function spaces
Kwok-Pun Ho 대한수학회 2022 대한수학회보 Vol.59 No.4
This paper studies the boundedness of integral operators on the Ces\`{a}ro function spaces. As applications of the main result, we obtain the Hilbert inequalities, the boundedness of the Erd\'{e}lyi-Kober fractional integrals and the Mellin fractional integrals on the Ces\`{a}ro function spaces.
PLANETARY NEBULAE: NEW CHALLENGES IN THE 21ST CENTURY
KWOK SUN The Korean Astronomical Society 2005 Journal of The Korean Astronomical Society Vol.38 No.2
Athough planetary nebulae (PNe) have been discovered for over 200 years, it was not until 30 years ago that we arrived at a basic understanding of their origin and evolution. Even today, with observations covering the entire electromagnetic spectrum from radio to X-ray, there are still many unanswered questions on their structure and morphology. In this review, we summarize recent theoretical and observational advances in PNe research, and discuss the roles of PNe in the chemical (atomic, molecular, and solid-state) enrichment of the galaxy and as tracers of the large scale structure of the Universe.
Kwok Kei Mak,Jae seung Jeong,Hye-Kyung Lee,Koun seok Lee 대한신경정신의학회 2018 PSYCHIATRY INVESTIGATION Vol.15 No.10
Objective: This study examined the mediating role of internet addiction in the association between psychological resilience and depressive symptoms. Methods: 837 Korean university students completed a survey with items of demographic information, Connor-Davidson Resilience Scale (CD-RISC), Internet Addiction Test (IAT), and Patient Health Questionnaire (PHQ-9) in 2015. The complex associations among psychological resilience, internet addiction, and depressive symptoms were delineated using structural equation models. Results: In the most parsimonious model, the total effect and indirect effect of resilience on depressive symptoms via internet addiction, were statistically significant. The goodness of fit of the measurement model was satisfactory with fit indices, normed fit index (NFI) of 0.990, non-normed fit index (NNFI) of 0.997, comparative fit index (CFI) of 0.998, root mean square error (RMSEA) of 0.018 (90%CI=0.001–0.034); and Akaike Information Criterion (AIC) of -21.049. Conclusion: The association between psychological resilience and depressive symptoms was mediated by internet addiction in Korean university students. Enhancement of resilience programs could help prevent internet addiction and reduce the related depression risks.