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박제민(Je-Min Park),김완철(Wan-Cheol Kim) 한국표면공학회 2010 한국표면공학회지 Vol.43 No.4
The Co-Cr alloys have clinical histories as dental and orthopaedic implants, and recently as cardiovascular stent applications because they exhibit a high elastic modulus and radiopacity. In order to improve their mechanical and corrosion resistance, electropolishing is employed as the final process. Electropolishing, an anodic dissolution process in the transpassive state, is sensitively affected by process conditions such as current density, machining time, and electrode gap. In this study, the effect of the electropolishing conditions on surface roughness and corrosion resistance is investigated for Co-Cr alloys (L605). The most smooth surface is obtained when electropolishing is performed at 15-20 V for 15-30 sec with a electrode gap of 3.5 ㎜. It is found out that electropolishing reduces corrosion rate about one-tenth as much.
권민정(Min Jung Kwon),문은수(Eunsoo Moon),박제민(Je Min Park),이병대(Byung Dae Lee),이영민(Young Min Lee),이재민(Jae Min Lee),김정범(Jung Bum Kim) 대한생물치료정신의학회 2012 생물치료정신의학 Vol.18 No.2
Objectives:This study aimed to compare anger coping strategies between bipolar I disorder and schizophrenia, and to explore the relationship between impulsivity and anger coping strategies. Methods:Forty three bipolar patients who met DSM-IV criteria for bipolar I disorder and forty three schizophrenia controls who were matched by age and sex were included. Anger coping strategies were measured by Anger Coping Scale(ACS), and the levels of impulsivity were also measured by Barratt Impulsiveness Scale(BIS). Independent t-test was used to compare anger coping strategies between two groups, and analysis of covariance(ANCOVA) to adjust the influence of impulsivity. Results:Score of problem-solving coping strategy was significantly higher in bipolar I disorder than schizophrenia (t=-2.047 p=.044). Problem-solving strategy was negatively correlated with total impulsivity in both bipolar patients and schizophrenic controls(bipolar I disorder r=-.376 p=.013 ; schizophrenia r=-.395 p=.009). There was no significant difference of problem-solving coping strategy between two groups after adjusting impulsivity(F=2.385 p=.126). Conclusion:These results suggested that bipolar I patients have a tendency to use more problem-solving coping strategy for anger situation than schizophrenia, which can be influenced by the level of impulsivity.
알츠하이머병에서 초조/공격성과 신경해부학적 영역의 연관성
정민수(Min Soo Jung),이영민(Young Min Lee),박제민(Je Min Park),이병대(Byung Dae Lee),문은수(Eun Soo Moon),정희정(Hee Jeong Jeong) 대한노인정신의학회 2013 노인정신의학 Vol.17 No.2
Objectives:The aim of this study is to identify the association between agitation/aggression and atrophy in specific brain areas in Alzheimer’s disease (AD). Methods:Fifty six patients with mild or moderate AD participated in this study. Cognitive function was measured using the Korean version of the Mini-Mental State Examination (K-MMSE), and Clinical Dementia Rating (CDR). Agitation/aggression symptoms were measured using the Korean version of the Neuropsychiatric Inventory (K-NPI). Atrophies of brain were analyzed using Voxel Based Morphometry (VBM). Results:Higher scores of agitation/aggression were correlated with the atrophy of left middle temporal, left fusiform, right middle temporal, left inferior temporal, right inferior temporal, left superior temporal, left middle occipital, right orbitofrontal, right superior frontal, left angular and right middle frontal gyrus (p<0.001, uncorrected for multiple comparisons, extent threshold=200 voxel). Conclusion:Agitation/aggression was correlated with specific neuroanatomical changes in mild or moderate AD.
손제현(Je Hyun Sohn),이영민(Young Min Lee),박제민(Je Min Park),이병대(Byung Dae Lee),문은수(Eun Soo Moon),정희정(Hee Jeong Jeong),김수연(Soo Yeon Kim),이강윤(Kang Yoon Lee),김지훈(Ji-Hoon Kim),정영인(Young-In Chung) 대한노인정신의학회 2017 노인정신의학 Vol.21 No.2
Objective:The purpose of this study is to investigate the difference on regional volume in temporal lobe between Alzheimer’s disease patients with psychosis (AD+P) and Alzheimer’s disease patients without psychosis (AD-P). Methods:Altogether, 24 AD+P and 25 AD-P matched age, gender, and clinical dementia rating sum of box (CDR-SOB) were include from a Memory impairment clinics of Pusan National University Hospital in Korea. AD+P were diagnosed according to Jeste and Finkel’s proposed diagnostic criteria for psychosis of Alzheimer’s disease. Grey matter volume of temporal lobe was measured with 3-tesla magnetic resonance imaging and freesufer analysis. Analysis of variance was used to investigate the association between temporal lobe and AD+P after controlling age, gender, education years, CDR-SOB and total intracranial volume. Results:We found an association between AD+P and reduced grey matter volume in total temporal lobe as well as in specific temporal regions such as left middle temporal lobe, left inferior temporal lobe, both hippocampus and both fusiform. Conclusion:Our findings suggest that AD+P are associated with reduced grey matter volume of temporal lobe.
신체형 장애에서의 Testosterone과 통각 역치의 상관관계
박재홍,김명정,박제민,김용기,한귀원,박성화,윤경일,정영인,김성곤,Park, Jae-Hong,Kim, Myung-Jung,Park, Je-Min,Kim, Yong-Ki,Han, Kwi-Won,Park, Seong-Hwa,Yun, Kyung-Il,Chung, Young-In,Kim, Sung-Gon 한국정신신체의학회 1998 정신신체의학 Vol.6 No.1
DSM-IV 진단 기준에 의하여 신체화 장애, 미분화 신체형 장애, 그리고 달리 분류되지 않은 신체형 장애여성 환자 13명과 정상 여성 20명을 대상으로 압통에 대한 통각 역치와 혈청 testosterone을 측정하여 다음과 같은 결과를 얻었다. 1) 가변 하중 압통 예민도 측정기 (Variable Weight Pressure Algometer)로 측정한 통각 역치는 환자군이 153.8${\pm}$39.5gm/$0.05mm^2$로서 대조군의 197.5${\pm}$66.7gm/$0.05mm^2$보다 유의하게 낮았다(p<0.05). 2) 혈청 testosterone치는 환자군에서는 0.175${\pm}$0.081ng/ml였고, 대조군에서는 0.174${\pm}$0.108ng/ml로서 양군간에 유의한 차이가 없었다. 3) Testosterone과 통각 역치와의 상관관계를 보면, 환자군에서는 혈청 testosterone치와 통각 역치 사이에 유의한 정적 상관관계가 있었으나(r=0.632, p<0.05, two tailed, Pearson's correlation test), 대조군에서는 유의하지 않았다(r=-0.405). 이상의 결과로 보아 신체화 장애 환자와 정상인 사이에 통각 예민도 조절 기전이 서로 다를 수 있다고 사료 된다. Thirteen female patients of somatization disorder, undifferentiated somatoform disorder and somatoform disorder, NOS, diagnosed by DSM-IV were studied for their pain threshold and serum testosterone and the results were compared with the respective data of 20 control females. The results are as follows : 1) The pain threshold as measured by Variable Weight Pressure Algometer was significantly lower in the patient group(153.8${\pm}$39.5 gm/$0.05mm^2$) as compared to the control group(197.5${\pm}$66.7 gm/$0.05mm^2$)(p<0.05). 2) There was no significant difference of serum testosterone between the patient(0.175${\pm}$0.081 ng/ml) and the control(0.174${\pm}$0.108 ng/ml) groups. 3) A significant positive correlation was noted between the pain threshold and serum testosterone in the patient group(r=0.632, p<0.05, two tailed, Pearson's correlation test), but not in the normal control group(r= -0.405). From these results, it was suggested that the role of testosterone in endogenous pain control system might be more important in somatoform disorders than normals.
이영민(Young Min Lee),김어수(Eosu Kim),박제민(Je Min Park) 대한노인정신의학회 2012 노인정신의학 Vol.16 No.2
Vascular dementia (VaD) is a dementia syndrome produced by vascular damage to the brain and increases in incidence with ad-vancing age. Early Identification and diagnosis of VaD is particularly importent since its course may be modifiable through control-ling vascular risk factors. VaD is heterogeneous and consists of several syndromes : multi-infarct dementia, strategic single infarcts dementia, and subcortical vascular dementia. The diagnosis of VaD is based on several features 1) dementia, 2) evidence of cere-brovascular disease, and 3) temporal relationship between dementia and cerebrovascular disease. Treatment of VaD includes control of vascular risk factors, prevention of further vascular injury and treatment of cognitive impairment. Cholinesterase inhibitors pro-vide symptomatic benefits in treatment of VaD.
한국어판 Eating Disorder Inventory의 요인구조
김철민 ( Cheol Min Kim ),박제민 ( Je Min Park ),김성곤 ( Sung Gon Kim ),김명정 ( Myung Jung Kim ),강철중 ( Cheol Joong Kang ),김지훈 ( Ji Hoon Kim ) 한국정신병리진단분류학회 2005 精神病理學 Vol.14 No.1
Objective: As a pilot study to develop a screening tool for eating disorders(EDs), the authors delineated factor structure and discriminant validity of the 64-item Korean version of Eating disorder inventory(EDI). Method: The EDI was administered to 1,217 Korean girls` high school students. Principal component analysis, one-way ANOVA and Receiver operating characteristic(ROC) curve analysis on EDI total and subscale scores were done. Diagnosis of EDs was based on a self report questionnaire derived from the Structured interview for DSM-IV. Result: Thirteen factors were extracted, explaining 58% of total variance but could be restructured into nine. Item construction was comparable with the Garner et al`s report except Interoceptive awareness subscale. Significant differences were noticed among diagnostic groups in the EDI total scores and subscale scores of drive for thinness, body dissatisfaction, bulimia/overeating and emotional/interpersonal problem. Other subscales such as interoceptive awareness, perfectionism, fear of maturity, interpersonal distrust and personal ineffectiveness failed to differentiated diagnostic groups. ROC curve analysis revealed dissatisfactory sensitivity and specificity of EDI as a screening tool. Moreover, EDI failed to detect AN type of EDs, showing greater usefulness for BN type. Conclusion: These data suggest that a new screening tool comprising ED- specific subscales would prove enhanced sensitivity and specificity for detecting different diagnostic groups of EDs for non-clinical population.
고농도 염화칼슘 농도처리에 따른 토양개량제와 구절초의 염분저감 상승효과
윤용한,양지,박제민,주진희,Yoon, Yong-Han,Yang, Ji,Park, Je-Min,Ju, Jin-Hee 한국환경과학회 2021 한국환경과학회지 Vol.30 No.10
This study aimed to investigate the effects of soil amendment (heat-expanded clay and active carbon) and planting of Dendranthema zawadskii var. latilobum on the remediation of salt-affected soil and the plant growth under high calcium chloride (CaCl<sub>2</sub>) concentration. The experimental group comprised treatments including Non treatment (Cont.), heat-expanded clay (H), active carbon (AC), planting (P), heat-expanded clay+planting (H+P), active carbon+planting (AC+P). A 200 mL solution of CaCl<sub>2</sub> at a concentration of 10 g·L<sup>-1</sup> was applied as irrigation once every 2 weeks. Compared to the Cont., the incorporation of the 'heat-expanded clay' amendment decreased electrical conductivity of the soil leachate and cation exchange capacity, whereas the growth of Dendranthema zawadskii var. latilobum was relatively increased. These results suggest that the combination of 'heat-expanded clay' amendment and planting will mitigate negative effect of de-icing salts and improve plant growth in salt-contaminated roadside soils.