정신분열병 환자의 인지과제수행에서 삼차원적 시공간-운동 방해자극 처리의 특성

정혜정,김재진,박성혁,전종희,김지혜,염태호,이장한,김선일,구정훈,조원근,안석균,이홍식 大韓神經精神醫學會 2003 신경정신의학 Vol.42 No.2

Objectives : Abnormalities of cognitive responses to verbal and visual distracter in schizophrenia have been demonstrated in numerous studies but little is known about three dimensional visuospatial-motor distracter processing. The purpose of this study was to investigate the vulnerability of patients with schizophrenia to three dimensional visuospatial-motor distracter. Methods : 14 patients with schizophrenia and 14 normal volunteers were assessed on three dimensional maze tasks requiring on working memory and reasoning ability in the virtual reality environment. Performances were compared according to with- or without-distracter conditions. Results : Patients with schizophrenia showed significantly lower performances than normal control group on cognitive flexibility, simple motor function or motor control and motor coordination, working memory span and delayed performance times. The performance index tended to be more deteriorated, but not significantly, in with-distracter condition than in Without-distracter condition in schizophrenia. Conclusions : Patients with schizophrenia tend to be vulnerable to visuospatial-motor distracter which simulate the real world of three dimensional environment.

무선 ATM망에서의 동적 대역폭 할당 알고리즘에 대한 QoS 성능 연구

류기훈,김지연,전광탁,양해권 군산대학교 정보통신기술연구소 2000 情報通信技術硏究論文集 Vol.4 No.-

In the network with small cell radius, a mobile terminal which has large mobility should perform frequent handover. This requires that handover mechanism must be done fastly. As cell size is smaller, signal power level is lower Handover is implemented by the network to give the users freedom of motion beyond a limited wireless coverage area while they are communication. The handover is procedure by which a user's radio link is transferred from one radio port to another through the network without an interruption of the user collection. The currently existing method for handover uses an algorithm, in which the bandwidth corresponding to the adjacent cells is supposed to be allocated. However, this method leads to the problem of requiring bandwidth allocation for many-unknown cells, due to the lack of information toward moving direction in mobile terminal. In this paper, we propose an efficient dynamic bandwidth allocation algorithm for solving those problem above, based on both path rerouting handover and soft hangover mechanism with wireless ATM. Thus, only the bandwidth for corresponding adjacent cell, that is from estimation, is chosen to be reserved; this method drastically reduces the waste of bandwidth, and improves the efficiency in performance. Comparing with static bandwidth allocation algorithm, the proposed algorithm make a bandwidth allocation more efficient. As for the QoS, it has been shown that proposed algorithm shows better performance than that with static bandwidth allocation algorithm.

Changes of Stem Cell-specific M arkers of Umbilical Cord Blood-derived M esenchymal Stem Cells by Serial Passage

Ji-Hae Song,Yong-Soo Choi,Bu-Young Park,Jong-Il Kim,Hyung-Jin Jeon,Young-Joo Jeon,Mi-Eun Kong,Dong-Il Kim 한국생물공학회 2008 한국생물공학회 학술대회 Vol.2008 No.10

파종시기에 따른 콩 품종별 품질 및 이화학 특성

이지혜(Ji Hae Lee),김현주(Hyun-Joo Kim),이병원(Byong Won Lee),이유영(Yu Young Lee),전용희(Yong Hee Jeon),이병규(Byoung Kyu Lee),이유영(Yu Young Lee),전용희(Yong Hee Jeon),이병규(Byoung Kyu Lee),우관식(Koan Sik Woo) 한국식품영양과학회 2018 한국식품영양과학회지 Vol.47 No.8

콩의 품질기준 설정의 일환으로 중북부지역에서 생산된 콩의 품종 및 파종시기에 따른 일반성분, 품질 및 항산화 특성을 검토하였다. 콩의 수분, 조회분, 조지방, 조단백질, 탄수화물 등 일반성분 함량은 품종 및 파종시기에 따라 유의적인 차이를 보였다. 콩의 명도는 품종별로 유의적인 차이를 보였으며, 파종시기에 따라 청두1호와 청미인 품종이 유의적으로 증가하였다. 적색도는 품종 및 파종시기에 따라 유의적인 차이를 보였다. 황색도는 품종별로 유의적인 차이를 보였고 파종시기에 따라 진품콩과 검정5호를 제외하고 유의적인 차이가 나타났다. 콩의 수분결합력과 팽윤력은 품종 및 파종시기에 따라 유의적인 차이를 보였다. 용해도는 품종별로 유의적인 차이를 보였고 파종시기에 따라 미소를 제외한 품종에서 유의적인 차이를 보였다. 콩의 페놀 성분 함량과 라디칼 소거 활성은 품종별로 유의적인 차이를 보이는 것으로 나타났다. 새단백 품종의 총 폴리페놀 함량은 보통기보다 만기재배 시 유의적으로 증가하였으며, 종피색이 검정색인 검정5호와 청자3호 품종이 다른 품종에 비해 높게 나타났다. 총 플라보노이드 함량은 미소, 새단백, 청미인, 청자3호 품종이 보통기보다 만기 재배 시 유의적으로 증가하였고, 대원콩, 진품콩, 청두1호, 검정5호 품종은 유의적으로 감소하였다. DPPH 라디칼 소거 활성은 파종시기에 따라 진품콩을 제외하고 유의적인 차이를 보였다. 콩의 수분 특성은 조회분, 조지방, 조단백질 함량과 상관관계가 있었고, 총 폴리페놀 및 플라보노이드 등 항산화 성분 함량과 라디칼 소거 활성은 조지방, 조단백질, 명도, 황색도와 상관성을 나타내었다. 품종 및 파종시기에 따라 페놀 성분 함량과 라디칼 소거 활성이 달라지므로 재배지역의 환경을 고려하여 파종시기를 결정할 필요가 있고 농업 지대에 따른 품종별 파종시기 설정에 대한 연구가 필요할 것이다. The proximate compositions, quality, and physicochemical characteristics of soybean of different variety and two different seeding periods were evaluated. The proximate compositions of soybean differed significantly according to variety and two seeding period. Additionally, the L-, a-, and b-values of soybean differed significantly according to the varieties. Water binding capacity and swelling power of soybean were significantly different among varieties and seeding periods. Water solubility index showed a significant difference with varieties, as well as a significant difference with seeding periods except for Miso. Total polyphenol and flavonoid contents and radical scavenging activity of soybean were significantly different among varieties. Total polyphenol content and ABTS radical scavenging activity differed significantly with varieties and with seeding periods except for Miso. DPPH radical scavenging activity showed a significant difference with seeding periods except for Jinpumkong. Phenol content and radical scavenging activity differed depending on varieties and seeding periods. Therefore, it is necessary to study the proper variety and seeding time considering the environment of cultivation area.

Two various types of cutaneous manifestations of systemic sarcoidosis in a patient

( Ji Yun Seo ),( Anna Kim ),( Yoo Sang Baek ),( Hae Jun Song ),( Jiehyun Jeon ) 대한피부과학회 2021 대한피부과학회 학술발표대회집 Vol.72 No.2

Perinatal Outcomes Of Fetal Growth Restriction Between Late Preterm And Term Birth Infants

( Ji Sun Surh ),( Seon A Hwang ),( Han Na Park ),( Seung Ju Jeon ),( Soon Pyo Lee ),( Ka Hyun Nam ),( Suk Young Kim ),( Dong Woo Son ),( So Yeon Shim ),( Hae Jung Joe ) 대한산부인과학회 2012 Obstetrics & Gynecology Science Vol.55 No.8

Objective To estimate the absolute increase in the risk for adverse neonatal outcomes of fetal growth restriction between late preterm and term birth and to identify risk factors for neonatal morbidity among late preterm and term birth infants. Methods A retrospective review of 2,954 singleton infant between 34 and 42 weeks of gestation born at our hospital over the 5 years were enrolled and they were divided into four groups as late preterm small for gestational age (SGA), late preterm adequate for gestational age (AGA), term SGA and term AGA, respectively. The prenatal ultrasonographic findings between SGA and AGA in late preterm birth were assessed. Maternal and neonatal complications were compared with SGA and AGA between late preterm and term birth infants. The statistical analyses for frequencies and relative risks in each group were calculated by SPSS ver. 19.0. Results In prenatal evaluation between SGA and AGA in late preterm birth, amniotic fluid volume, abdominal circumference and umbilical artery Doppler resistance index value were different significantly ( P<0.001). Preeclampsia and oligohydramnios were found more common in SGA of late preterm birth compared with AGA of term birth. Jaundice, respiratory distress syndrome, necrotizing enterocolitis, sepsis, congenital anomalies, hypoglycemia, and germinal matrix`s hemorrhage, occurred more frequent in SGA of late preterm birth than in AGA of term birth. Conclusion Not only adequate prenatal evaluation and obstetrical decision-making but also long-term evaluation are needed to improve perinatal outcomes of growth restricted infants in late preterm birth.

User experience of MV2000-MT (SU:M2)^® as a Mechanical Ventilator: A Comparative Clinical Study on Usability, Safety, and Medical Staff Satisfaction

Jeon, Soeun,Kim, Hae Kyu,Lee, Dowon,Kim, Hyae Jin,Park, Eun Ji The Korean Society of Medical and Biological Engin 2019 의공학회지 Vol.40 No.6

In the present study, we aimed to demonstrate that MV2000-MT(SU:M2)^® (MV, MEK-ICS, Paju, Korea), a domestic ventilator, is not inferior in terms of usability, safety, and medical staff satisfaction as compared to Hamilton G5 (G5, Hamilton Medical AG, Rhäzuns, Switzerland). A total of 39 patients who applied MV (group M) or G5 (group H) were included in the study sample. Usability was evaluated by the following factors: the number of alarm errors, replacement requirement of breathing circuit, replacement requirement of a right-angle connector, and ease of ventilator weaning. For safety evaluation, the number of ventilator replacements due to malfunction of the ventilator was evaluated. Items for medical staff satisfaction survey were as follows: the number of MV and G5 uses, hardware, and software assessment. In the usability evaluation, the replacement requirement of the right-angle connector was lower in Group M than in Group H (mean ± standard deviation, Group M: 7.39 ± 6.72, Group H: 14.19 ± 10.24, p = 0.021); however, the evaluations of other parts were not significantly different between the two groups. The number of ventilator replacements due to a malfunction of the ventilator did not differ between two groups. The number of MV and G5 uses was 3.0 [3.0-4.0] and 10.0 [5.0-10.0] (median [interquartile range], p < 0.001). Overall, the mean medical staff satisfaction score of Hamilton G5 was higher than that of MV2000-MT(SU:M2)^®. The usability of MV is comparable to that of G5. However, medical staff satisfaction with Hamilton G5 was higher than that with MV2000-MT(SU:M2)^®, and this difference could be due to the difference in the number of uses. In order to improve the penetration rate of the domestic mechanical ventilator, it is necessary to find ways to increase familiarity of medical staff with domestic mechanical ventilators.

An unusual case of molluscum contagiosum mimicking syringoma in a healthy adult patient

( Ji Yun Seo ),( Seung Hwi Kwon ),( Yoo Sang Baek ),( Jiehyun Jeon ),( Hae Jun Song ),( Chil Hwan Oh ) 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.1

Molluscum contagiosum is a common and often harmless viral infection caused by molluscipox virus that most often affects children younger than 5 years of age. It is characterized by 3~6mm smooth, dome-shaped, waxy-appearing firm papules with a central umbilication. In children, the lesions most commonly occurs on the face, neck, thighs, and skin folds. In adults, the genital, abdomen and buttock area are more often affected as intimate contact is the typical source of infection. Widespread, severe or unusual pattern lesions can be seen in the immunocompromised patient, as in AIDS. A 43-year-old man visited our clinic presented with multiple tiny flesh colored papules on right side of face that he noticed since several months ago. He was a known hepatitis B carrier for the past 14 years, but he didn’t have any specific symptom or significant liver enzyme elevation yet. As an impression of syringoma, histological confirmation was done on the lesion. Histopathological finding showed down-growth of infected epidermal cells as lobules, which contain large eosinophilic cytoplasmic inclusion bodies also known as Henderson-patterson or molluscum bodies, consistent with molluscum contagiosum. Because of unusual clinical presentation of the case, it may not have been diagnosed without further evaluation such as biopsy. Herein, we report an unusual clinical presentation of molluscum contagiosum in an adult patient, which is easy to be overlooked

Arthroscopic Treatment of Septic Arthritis of the Shoulder: Technical Pearls to Reduce the Rate of Reoperation

Ji Eun Kwon,Ji Soon Park,Hae Bong Park,Kyung Pyo Nam,Hyuk Jun Seo,Woo Kim,Ye Hyun Lee,Young Dae Jeon,Joo Han Oh 대한견주관절의학회 2020 대한견주관절학회지 Vol.23 No.1

Background: The aim of this study was to evaluate clinical experience with arthroscopic debridement for septic arthritis of the shoulder joint and to report on our patient outcomes. Methods: The retrospective analysis included 36 shoulders (male:female, 15:21), contributed by 35 patients (mean age, 63.8 years) treated by arthroscopy for septic arthritis of the shoulder between November 2003 and February 2016. The mean follow-up period was 14.3 months (range, 12-33 months). An additional posterolateral portal and a 70º arthroscope was used to access the posteroinferior glenohumeral (GH) joint and posteroinferior subacromial (SA) space, respectively. Irrigation was performed with a large volume of fluid (25.1±8.1L). Multiple suction drains (average, 3.3 drains) were inserted into the GH joint and SA space and removed 8.9±4.3 days after surgery. Intravenous antibiotics were administered for 3.9±1.8 weeks after surgery, followed by oral antibiotic treatment for another 3.6±1.9 weeks. Results: Among the 36 shoulders, reoperation was required in two cases (5.6%). The average range of motion achieved was 150.0º for forward flexion and T9 for internal rotation. The mean simple shoulder test score was 7.9±3.6 points. Nineteen shoulders (52.8%) had acupuncture or injection history prior to the infection. Pathogens were identified in 15 shoulders, with Staphylococcus aureus being the most commonly identified pathogen (10/15). Both the GH joint and the SA space were involved in 21 shoulders, while 14 cases involved only the GH joint and one case involved only the SA space. Conclusions: Complete debridement using an additional posterolateral portal and 70° arthroscope, a large volume of irrigation with >20 L of saline, and multiple suction drains may reduce the reoperation rate.

Three-dimensional evaluation of the repeatability of scans of stone models and impressions using a blue LED scanner.

Jeon, Jin-Hun,Jung, Il-Do,Kim, Ji-Hwan,Kim, Hae-Young,Kim, Woong-Chul Japanese Society for Dental Materials and Devices 2015 Dental materials journal Vol.34 No.5

<P>In this study, we evaluated the repeatability of scans of stone models and impressions of abutment teeth using a blue LED scanner and compared the findings between different abutment teeth types. For the stone models as well as impression of the canines, premolars, and molars, we generated 10 color-difference-maps and reports for each tooth type (n=10 per tooth type). One-way analysis of variance (ANOVA) and independent t-tests were performed to evaluate the repeatability of scans of the stone models and impressions obtained from a blue LED scanner. Our results indicate a high repeatability of scans of stone models and impressions of abutment teeth using the blue LED scanner and suggest a possible clinical advantage for scanning impressions of different abutment teeth types.</P>