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pH순환 모델에서 과포화 용액의 초기 우식 법랑질에 대한 재광화 효과
홍석진,김소라,이찬영,노병덕,금기연 대한치과보존학회 2001 Restorative Dentistry & Endodontics Vol.26 No.4
Dental caries is the most common oral disease. There are many factors contributing to its development. but complete understanding and prevention are not fully know. However, it is possible to remineralize the early enamel carious lesion by fluoride containing remineralization solution. Recently the pH-cycling model has been used to examine the effect of fluoride solution on remineralization of artificial caries in vitro as it can closely simulate the conditions encountered in vivo within a carefully controlled enviroment.
정신분열병 환자에서 얼굴 영상의 작동기억 장애 : 기능자기공명영상연구
이창욱,김태석,주라형,박주미,박여진,김종진,전신수,배치운,김정진,이수정,이철,백인호 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.2
Objectives : Impaired processing of facial information is one of the broad ranges of cognitive deficits seen in patients with Schi-zophrenia. We aimed to elucidate the differences in brain activities involved in the process of facial working memory between schizophrenic patients and healthy comparison subjects. Methods : Twelve patients with schizophrenia were recruited along with twelve demographically matched healthy volunteers as a comparison group. Functional magnetic resonance imaging (fMRI) was used to assess cortical activities during the Perfor-mance of a 2-back working memory paradigm using images of neutral faces as mnemonic content. Rcsults : The patient group performed the tasks with reduced accuracy. Group analysis revealed that the left fusiform gyrus, the right superior frontal gyrus, the bilateral middle frontal gyri/insula, the left middle temporal gyrus, the precuneus, the quadrangular lobules and the vermis of cerebellum showed decreased cortical activities in the patient group. On the other hand, an increased level of activation in the lateral prefrontal cortex and the pahetal lobule was observed from the patient group, all in the right hemisphere. Conulusion : A decreased level of activity in the left fusiform gyrus among the patient group implicates inefficient processing of facial information. An increased level of activation in prefrontal and parietal neural networks from the patient group confirms earlier findings on the impaired working memory of patients with schizophrenia.
School-related factors affecting smoking intention among Korean middle school students
Ra, Jin Suk,Jung, Mi Sook Elsevier 2018 Applied nursing research Vol.39 No.-
<P><B>Abstract</B></P> <P><B>Introduction</B></P> <P>This study examined school-related factors affecting smoking intention among Korean middle school students who were current non-smokers.</P> <P><B>Methods</B></P> <P>We used a descriptive, cross-sectional design based on the model explaining smoking initiation among Asian adolescents, to analyze data from 561 adolescents aged 14–16years in middle school.</P> <P><B>Results</B></P> <P>School-related cognitive and psychological engagement and close friends' smoking were significantly associated with smoking intention after controlling for covariates, such as personal and familial factors. Of the familial factors, mothers' previous or current smoking status were significantly associated with smoking intention. In addition, for personal factors, smoking experience was associated with smoking intention. The explanatory power of these variables in the predictive model was 36.0%.</P> <P><B>Conclusion</B></P> <P>Health care providers in schools and communities should develop smoking prevention strategies reflecting school-related factors associated with smoking intention such as improving school engagement and providing healthy alternative methods for social interaction with peers rather than smoking.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Smoking intention was explained by various personal, familial, and school-related factors. </LI> <LI> School engagement and close friends’ smoking were significantly associated with smoking intention of middle school students. </LI> <LI> Mother’s smoking behavior and their own smoking experience contributed to intention to smoking in adolescents. </LI> </UL> </P>
Jin Suk Ra 한국간호과학회 2021 한국간호과학회 학술대회 Vol.2021 No.10
Aim(s): Aim of this study was to identify moderating effect of school connectedness in relationship between weight bias internalization and depressive symptoms among overweight and obese adolescent girls. Method(s): In cross-sectional study design, 99 overweight and obese adolescent girls in high schools (aged 13~15 years) was reported their weight bias internalization, school connectedness, and depressive symptoms with self-report questionnaires. Using SPSS PROCESS macro, multiple regression and simple slope analysis were performed to test moderating effect of school connectedness. Result(s): Weight bias internalization was positively associated with depressive symptoms (B=0.25, t=9.17, p<.001), whereas school connectedness was negatively associated with depressive symptoms (B=-0.28, t=-11.00, p<.001). In addition, interaction between weight bias internalization and depressive symptoms was significant associated factor for depressive symptoms (B=-0.01, t=-2.62, p=.009). Weight bias internalization, school connectedness, and their interaction explained 45.4% of the variance in depressive symptoms. According to simple slope analysis, among the overweight and obese girls with higher school connectedness than 22.62 points (ranged -61.08~31.92), weight bias internalization was not associated with depressive symptoms, while among the overweight and obese girls with lower school connectedness than 22.62 points, weight bias internalization was associated with depressive symptoms. Conclusion(s): High school connectedness might relieve depressive symptoms associated with weight bias internalization among overweight and obese adolescent girls. Thus, maintain positive school environment and attached relationships with teachers and peers associated with high school connectedness might be essential to relieve depression due to weight bias internalization.
Ra, Jin Suk,Cho, Yoon Hee John Wiley Sons Australia, Ltd 2018 NURSING AND HEALTH SCIENCES Vol.20 No.4
<P><B>Abstract</B></P><P>In this study, we investigated the relationship between risk‐taking tendency and smoking intention as moderated by social normative beliefs among Korean female adolescents. A cross‐sectional study was conducted with 274 female adolescents in middle school. Multiple regression and simple slope analyses were employed to test the moderating effects of social normative beliefs regarding smoking on the relationship between risk‐taking tendency and smoking intention. Results determined that risk‐taking tendency, social normative beliefs regarding smoking, and their interaction were significant factors influencing smoking intention among adolescents. Risk‐taking tendency was associated with greater smoking intention among adolescents, with higher than average social normative beliefs regarding smoking. However, risk‐taking tendency was not significantly associated with smoking intention for adolescents with lower than average social normative beliefs regarding smoking. In conclusion, social normative beliefs regarding smoking moderated the relationship between risk‐taking intention and smoking intention among Korean female adolescents. Unique sociocultural perceptions about smoking behaviors of adolescents need to be reflected in smoking‐prevention and ‐cessation programs.</P>
Role of the modified Saengmaeksan(mSMS) in L-NAME-induced hypertension model
Jin Ki Jung,Hobin Moon,Won Hee Nam,Yun-Hwan Kang,Se-Jin Kim,Young Mi Seok,Hyun Hee Leem,Ji-Woon Jeong,Yu Jin Park,Min Ju Kim,Chae Suk Ra,Jiyoung Seo,Hye Won Shin,Bo Gyung Jang,Hyo Jung Kim 한국실험동물학회 2022 한국실험동물학회 학술발표대회 논문집 Vol.2022 No.7