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- 저자 : 정지영(J. J. Jung) (검색결과 11 건)
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마이크로파 흡수 메타구조체 충진성형에 관한 실험적 연구
한준세(J.S.Han),박현진(H.J.Park),정지영(J.-Y.Jeong),정준교(J.Jung),곽은지(E.-J.Gwak),전은채(E.-c.Jeon),신종화(J.H.Shin),제태진(T.-J.Je),최두선(D.-S.Choi) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Conductive ink filling process was experimentally developed and optimized for fabrication of ultra-andwidth microwave absorbing meta-structure. Developed overall fabrication process consists of mechanical machining, polymer replication, and ink filling process. Effects of ink-fill parameters including blade type, ink viscosity, pattern depth, and blade speed were experimentally characterized to achieve uniformly filled flexible double square loop array. Under optimizing processing conditions, large-scale flexible film type meta-structure fabrication process was established.
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정상 젊은 성인에서 도파민 DRD2/ANKK1 Taq 1a 유전자다형성에 따른 우측 미상핵 용적의 차이
전유진,최예라,김지현,정지영,김다정,유숙경,임주연,이정현,Jeon, Yu-Jin,Choi, Ye-Ra,Kim, Ji-Hyun H.,Jung, Ji-Young J.,Kim, Da-Jung J.,Yu, Suk-Gyeong,Im, Joo-Yeon Jamie,Lee, Jung-Hyun H. 대한생물정신의학회 2011 생물정신의학 Vol.18 No.4
Objectives The aim of this study was to assess variations in caudate volume according to dopamin receptor D2/ankyin repeat and kinase domain containing 1 (DRD2/ANKK1) Taq 1a polymorphisms in young healthy adults and to evaluate the relationship between caudate volumes and psychiatric symptoms as measured by the Brief Psychiatric Rating Scale. Methods Genetic information regarding DRD2/ANKK1 Taq 1a and T1-weighted brain magnetic resonance images were acquired from 30 young healthy adults. Automatic segmentation of caudate was performed using the FreeSurfer program. Results Individuals with A2 homozygotes of DRD2/ANKK1 Taq 1a polymorphisms (n = 10) had greater right caudate volumes compared to those with A1 allele (s)(18.4% greater ; p = 0.019). Right caudate volumes were negatively associated with total scores of the Brief Psychiatric Rating Scale (${\beta}$=-0.50 ; p = 0.016). Conclusions Our findings suggest the possibility that DRD2/ANKK1 Taq 1a polymorphisms may underlie the psychiatric symptoms by influencing the structure of the right caudate.
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이상민,정지영,한용태,박해택,박흠대,정길생,이기영,Lee, S.M.,Jung, J.Y.,Han, Y.T.,Park, H.T.,Park, H.D.,Chung, K.S.,Lee, K.Y. 대한생식의학회 1998 Clinical and Experimental Reproductive Medicine Vol.25 No.2
We demonstrated that the normal pregnancy and delivery by round spermatid injection (ROSI) into oocytes was achieved from nonobstructive azoospermia patient. In this case, the normal fertilization rate was 50%. All of the two pronuclear stage embryos cleaved and were transferred to the patient's uterus. A singleton pregnancy was achieved and resulted in the birth of normal female infant. This resuJt show that intracytoplasraic injection of round spermatid seems to be new treatment of nonobstmctive azoospermia male infertility. Further research is needed to evaluate the required culture conditions to induce progression of the round spermatid into a more elongated stage.
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기질 및 성격 특성이 의과대학 학생의 관심 전공 선택에 미치는 영향
김인향,고은,김은정,반순현,정지영,이선혜,류인균,이정현,Kim, In Hyang,Ko, Eun,Kim, Eun Jung,Ban, Soon Hyun,Jung, Jiyoung J.,Lee, Sun Hea,Lyoo, In Kyoon,Lee, Junghyun H. 대한생물정신의학회 2012 생물정신의학 Vol.19 No.4
Objectives In the previous studies, it has been suggested that temperament and character may affect specialty choice in medical students. The aim of this study is to investigate the effects of temperament and character on specialty interests in medical students. Methods A total 132 third-year medical students initially participated in this study. Among these participants, 128 students had filled out both demographic and Temperament and Character Inventory (TCI) questionnaires. Socio-demographic data, specialty interests and Cloninger's TCI scores were obtained. The specialty interests were categorized into surgical, medical and other departments. Results Among 128 students, 88 (68.7%), 29 (22.7%) and 22 (8.6%) students chose medical, surgical and other departments, respectively. Students choosing surgery departments showed lower Harm Avoidance scores (F = 4.39, df = 1, p = 0.04) and higher Self-Directedness scores (F = 4.30, df = 1, p = 0.04) than those who chose medical departments. There was no significant differences in Novelty Seeking, Reward dependence, Persistence, Cooperativeness, Self-Transcendence scores between groups. Conclusions To the best of our knowledge, this is the first study that has demonstrated the relationship between TCI scores and specialty interests of medical students in Korea. The current study suggests that temperament and character influence specialty interests in medical students. These findings could have implications for medical education research and career counseling.
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녹차섭취와 운동에 의한 비만 청소년의 혈중 biochemical marker 함량 감소
Jae K. Yang(양재경),Ji Y. Jung(정지영),Seol J. Kang(강설중),Gang W. Cheong(정강원),Jong C. Kim(김종철),Seong K. Ko(고성경),So B. Jeong(정소봉) 한국생명과학회 2011 생명과학회지 Vol.21 No.2
녹차섭취와 유산소운동이 비만 남자중학생의 체중과 혈중 biochemical marker에 미치는 영향에 관하여 연구하였다. 체지방율이 25% 이상인 비만 남자중학생 36명을 대상으로 대조군(n=9), 녹차처리군(n=9), 운동군(n=9)과 녹차와 운동 병행군(n=9)으로 분류하여, 운동은 주 5회 60분씩 12주간 실시하였고, 녹차는 녹차열수출물을 음용(녹차건중 1.5-1.7 g/일) 하였다. 대조군은 녹차처리군이 섭취한 양의 물을 섭취하였다. 실험 시작전과 12주 후의 혈중 TNF-α, IL-6, leptin, TG 및 HDL-C 함량을 측정하였다. 대조군을 포함한 모든 처리군에서 체중 변화는 없었으나 병행군은 복부지방률이 감소하였다. 대조처리는 TNF-α, IL-6 및 leptin 함량에 아무런 영향을 미치지 않았다. 녹차처리는 leptin (p<0.05)을 감소시켰고, TG (p<0.01)는 증가시켰다. 운동은 TNF-α (p<0.05), IL-6 (p<0.01) 및 leptin (p<0.05) 함량을 감소시켰다. 또한 녹차처리와 운동 병행은 IL-6 (p<0.05), leptin (p<0.05) 및 HDL-C(p<0.01) 함량을 감소시켰다. 이 결과는 녹차섭취나 운동은 젊은 비만 중학생의 혈중 염증 cytokine인 TNF-α, IL-6 및 leptin 함량 감소에 효과가 있었으나, 녹차섭취와 운동의 병행에 의한 synergy 효과는 없었다. The effects of green tea consumption and/or exercise for 12weeks on body weight and select biochemical markers in plasma were evaluated in obese adolescents with a fat ratio of greater than 25%. The subjects were randomly divided into a control group (n=9), green tea consumption group (n=9), exercise group (n=9) and green tea consumption with exercise group (n=9). Subjects in both green tea consumption group and green tea consumption with exercise group were given more than five cups of green tea extract in hot water (90℃) daily, equivalent to 1.5-1.7 g dry green tea, for 12 weeks. Subjects in both the exercise group and green tea consumption with exercise group participated in a training program (HRmax 60-70%, 60 min/day) for 12 weeks. Control subjects were only given water equal to the quantity of green tea being given to the subjects of green tea consumption. No significant changes body weights were seen in any of these treatments, but the waist to hip ratio was reduced with treatments of both green tea and exercise. The control group showed no significant changes in TNF-α, IL-6 and leptin levels. Green tea consumption reduced leptin (p<0.05), TNF-α, and leptin levels. Exercise lowered TNF-α (p<0.05), IL-6 (p<0.01), and leptin (p<0.05) concentrations. Meanwhile, a combination of green tea consumption and exercise lowered TNF-α, IL-6 (p<0.05) and leptin (p<0.05) levels. These results indicate that green tea consumption and exercise both had a positive effect on the reduction of inflammatory cytokines, TNF-α, IL-6 and leptin, in obese adolescents, but no synergistic effect on the reduction of these cytokines.
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정상 성인에서 자극추구 기질에 따른 우측 편도체의 측기저 세부구조의 차이
조한별,김빈나,최지혜,전유진,김지현,정지영,임주연,이선혜,Cho, Han-Byul,Kim, Bin-Na,Choi, Ji-Hye,Jeon, Yu-Jin,Kim, Ji-Hyun H.,Jung, Ji-Young J.,Im, Joo-Yeon Jamie,Lee, Sun-Hea 대한생물정신의학회 2012 생물정신의학 Vol.19 No.2
Objectives : Novelty seeking (NS) represents a dopaminergically modulated tendency toward frequent exploratory activity. Considering the reports showing the relationship between exploratory activity and amygdalar function and structure, and the fact that amygdala is one of the key structures that constitute the dopaminergic pathway in the brain, amygdala might be closely related to NS tendencies. Amygdalar subregional analysis method, which has the enhanced sensitivity compared to the volumteric approach would be appropriate in investigating the subtle differences of amygdalar structures among healthy individuals. The aim of the current study was to examine whether amygdalar subregional morphometric characteristics are associated with the NS tendencies in healthy adults using the amygdalar subregional analysis method. Methods : Twenty-six healthy adults (12 males, 14 females ; mean age $29.8{\pm}6.2$ years) were screened for eligibility. All subjects completed the Korean version of the Temperament and Character Inventory (TCI) and underwent high-resolution brain magnetic resonance imaging. Individuals were divided into 2 groups according to NS scores of the TCI. Results : Individuals of the high NS group had significantly larger laterobasal subregions in right amygdala, after adjustment with the brain parenchymal volumes. Sensitivity analyses for each potential confounding factor such as age, education years and Hamilton Depression Rating Scale (HDRS) scores demonstrated consistent results. Conclusions : This study suggests that NS differences are associated with the laterobasal subregion of the amygdala.
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지평식(P. S. Ji),한운동(W. D. Han),임지혜(J. H. Lim),박은규(E. K. Park),정지영(J. Y. Jung),김기범(K. B. Kim) 한국조명·전기설비학회 2009 한국조명·전기설비학회 학술대회논문집 Vol.2009 No.5월
Earth parameters are essential to design and analysis of earth In this study, a algorithm to estimate earth parameter using artificial neural network(ANN) was proposed. Structures of the soil are grouped by using KSOM algorithm before estimation. Earth parameter is obtained by using BP algorithm. The effectiveness of the proposed algorithm was verified in the case study.
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