국산밀과 수입밀의 이화학적 특성

하정욱,이승철 慶南大學校 附設 基礎科學硏究所 1997 硏究論文集 Vol.11 No.-

To compare chemical characteristics of domestic wheat flour and imported one. we determined moisture. crude protein, ash, and crude lipid. In the case of moisture content, domestic crude wheat flour has shown 10.84%, the lowest value. while that of imported wheat flour has shown 13.33∼14.19%. In crude protein content, domestic fine wheat flour shown 11.69%. and domestic crude has shown 14.34%, while that of imported strong, medium, weak wheat flour has shown 14.30, 11.78, and 9.28%, respectively. In ash content. domestic crude wheat flour has shown 1.50%, and that of domestic fine one has shown 0.74%, while that of imported one has shown 9.85~11.12%. In color analysis. domestic fine wheat flour has shown similar lightness as that of imported strong wheat flour.

40세 이하 관상동맥 질환자에서 장기적 임상 관찰

이승욱,정명호,박종철,박형욱,조상희,김원,김계훈,이상현,강경태,조장현,김남호,김건형,안영근,조정관,박종춘,강정채 全南大醫大 2001 전남의대학술지 Vol.37 No.2

응급실 내원시 예상치 못한 사망 환자의 예측 인자

김욱진,서정필,정성필,황태식,이한식 대한응급의학회 1998 대한응급의학회지 Vol.9 No.4

Background: Unexpected deaths of the patients at ED are surprising to the medical staffs as well as the families. It may also increase the possibilities of medico-legal problems. This study was conducted to review the unexpected death in ED and find the predictive factors leading patients to unexpected death. Methods: A retrospective study with reviewing available medical records of 183 patients who were expired at Ed of Shinchon Severance Hospital from Mar. 1997 to Feb. 1998 and 103 patients of Youngdong Severance Hospital from Mar. 1996 to Feb. 1998 was done. Analyses were done on 30 variables of physical findings, laboratory results, procedures and therapies. We used univariate analysis such as t-test and x²-test and multiple logistic regression analysis. Results: Of the total 286 deaths in Ed, 153 cases were enrolled in this analysis. The number of unexpected deaths were 76. Age, mental status, fraction of neutrophil count, BUN level, whether endotracheal intubation was done, use of inotropics were the factors with statistical significance on the univariate analysis, but only comatose mentality, endotracheal intubated case, and use of the inotropics were significant on logistic regression analysis. The longer the ED length of stay, the higher the rate of mortality and unexpected death. Conclusion: This result suggest that medical attention is needed on the patients with comatose decreased mental status, endotracheally intubated case and needing inotropic agents to prevent unexpected deaths shortening the ED length of stay may also be a factor for decrease the unexpected death rate.

Cu(Mg) 박막의 Time Dependent Dielectric Breakdown 특성 평가

안정욱,황상수,박영배,주영창 대한금속재료학회 2005 대한금속·재료학회지 Vol.43 No.2

Electrical properties and time dependent dielectric breakdown (TDDB) characteristics of Cu (0.7 at.% Mg) alloy films are investigated to improve the reliability of Cu interconnects used in microelectronic devices. After Cu(Mg) films are annealed in vacuum at 400℃ for 30 min, resistivity decreases from 3.4 to 2.0 μΩcm and, thin and continuous MgO layers form both on Cu(Mg) film surface and on Cu(Mg)/SiO₂ interface. Metal-Oxide-Silicon (MOS) capacitors composed of Cu(Mg) film deposited on thermal oxide grown on Si wafer are subjected to bias temperature stressing at 180 through 220℃ under electric fields of 1.5 through 2.6 MV/cm. Median time to failure (MTTF) and activation energy of Cu(Mg)/SiO₂ are much larger than those of pure Cu/SiO₂. Cu drifts into dielectric are inhibited by the continuous Mg oxide formed at Cu(Mg)/SiO₂ interface which improve interfacial adhesion and finally lead to better interconnect reliabilities. (Received October 29, 2004)

돌돔, Oplegnathus fasciatus(Temminck et Schlegel)의 卵發生 및 仔稚魚期의 形態

高正樂,金容億 釜山水産大學校 1992 釜山水産大學 硏究報告 Vol.32 No.2

1991年 7月 6日에 제주도 한림 水産振興院 水産種苗 培養場과 1991年 6月 19日 경남 통영군 산양면에서 自然産卵하여 얻은 受精卵의 卵發生過程과 仔稚魚의 成長에 따른 外部形態와 내부골격의 骨化過程을 調査한 結果를 要約하면 다음과 같다. 受精卵은 1개의 油球를 가지는 分離浮性卵으로서 卵徑은 0.85±0.03 ㎜(n=20)였으며, 油球徑은 0.20±0.01 ㎜(n=20)이고, 水溫이 22.2℃에서 受精卵은 약 36時間만에 孵化하였다. 孵化直後의 仔魚는 全長이 平均 1.75㎜로 卵黃을 가지고 등쪽 막지느러미에 4∼6개의 黑色素胞가 있으며, 體表에는 黑色素胞와 黃色素胞가 골고루 분포한다. 孵化後 27日째 全長이 平均 10.42㎜에 달하면 기條數가 D.ⅩⅠ∼ⅩⅡ, 18,A. Ⅲ - 11, Ⅴ.4,C.9+9,P.14로 定數에 달하여 稚魚期로 移行하다. 頭蓋骨 및 內臟骨의 骨化는 孵化後 6日째(全長 3.74㎜)부터 처음으로 骨化가 시작되며 孵化後 34日째(全長 14.53㎜) 稚魚期에 달하면 대부분의 골격이 완성된다. 脊椎骨의 椎體는 後期稚魚期때가 되어서야 骨化가 일어나며, 腹椎骨의 중앙부에서 腹部 앞으로, 그리고 尾部로 骨化가 진행되며, 神經棘이 血管棘보다 먼저 骨化가 일어난다. 일반적으로 어류에 있어서 골격의 발달은 攝餌와 呼吸에 關聯된 部位부터 먼저 骨化가 일어 나는데, 돌돔의 경우에는 攝餌物이 미소하여 呼吸器 보다는 顎骨 부위의 骨化가 늦었다. 後期仔魚期에서 부터 빠른 속도로 骨化가 되어져 孵化後 35日째(全長 15.51㎜)에 달하면 골격이 完成된다. In July 6, 1991, the summary of the result of investigation of embryonic development, morphology, and ossification of skeleton process according to growth of larvae and juveniles of naturally spawned eggs at Che Ju island and Chung Mu is shown. A mature eggs with oil globule has a diameter of 0.85�0.03 ㎜(n=20), the oil globule diameter of 0.20�0.01 ㎜(n=20). Hatching takes 36hrs at 22.2�. The newly hatched larvae reached 3.75 ㎜ in total length, approximately, and possess yolk sac, about 4�6 melanophore at dorsal memberanous fin and distributed melanophore and xanthophore on body surface. Twenty seven days after hatching, the juveniles measured 10.42 ㎜ in mean total length, and each fin ray was identical with the juveniles, D.ⅩⅠ~ⅩⅡ, 18,A. Ⅲ-11, Ⅴ.4,C.9+9,P.14. Six days after hatching(T.L. 3.74㎜), ossification of cranium and visceral skeleton have occured and reached the juvenile stage, thirty four days after hatching(T.L. 14.53㎜), all bone was ossified. Ossification of vertebrae of centrum have occured in post larva stage. At first, ossification of skeleton occuring at the parts of related respiration, so that ossification of respiratory organ is faster than maxilla because the size of food is very small. From the post larvae skeleton development, after thirty five days of hatching(T.L. 15.51㎜), skeleton formation was completed.

저빈도 반복성 경두개 자기자극이 정상인의 시각적 단기 기억에 미치는 영향

오해정,김원,이경욱,박원명,전태연,한진희,채정호 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.5

Objectives : Repetitive transcranial magnetic stimulation (rTMS) is a novel, noninvasive method of brain stimulation. Since conventional rTMS does not cause seizure, marked advantage over electroconvulsive therapy (ECT), rTMS can be used easily and widely. Once the effects of rTMS on cognitive function are elucidated, its application will be further extended. However, the effects of rTMS on cognitive function have not been well examined. This study aimed to evaluate the effect of low frequencyr TMS on visual short term memory. Methods : Forty normal healthy volunteers were randomly assigned to rTMS (n=20) or sham (n=20) groups. The rTMS group were again randomly divided into left prefrontal (n=10) and right prefrontal (n=10) groups. For each group rTMS was given at 1 Hz for 20 minutes with 100% of motor threshold. As a cognitive task, Corsi Block Tapping Test (CORSI) in the computerized Vienna Test System, which can assess visual short term memory, was performed before, during, and after the rTMS. Results : No significant difference was found in the visual short term memories between the rTMS and the sham groups before, during, or after 1 Hz rTMS, nor between the left and right prefrontal rTMS groups. Conclusion : This study demonstrates that rTMS, contrary to ECT, has no adverse visual short term memory effect when used as the standard treatment paradigm. Therefore, rTMS could be a new and safe treatment method in various neuropsychiathc fields without any interference of cognitive function.

노인에서 정서 인식의 저하

이경욱,채정호,최인철,이해국,권용실,이정태 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.2

Objectives : The purpose of this study was to investigate whether elderly and young adults differ in their recognition of facial expressions of emotion. Methods : A total of 120 (elderly group 53, young group 67) subjects participated in this study. Korean facial expressions of emotion including happiness, sadness, fear, anger, disgust, surprise and neutral were used as stimuli for facial affect recognition test. Computerized facial affect recognition test that consists of facial affect discrimination test and facial affect intensity test was performed. Results : For facial affect discrimination test, there was a significant difference between two groups (F==3.986, P<.01) after controlling the effect of education. Elderly participants showed significantly less correct recognition rate with sadness, anger and disgust (p<.05). For facial affect intensity test, there was no significant difference between the groups in recognition of emotional intensity. Chi-square test or t-test was done according to the clinical variables. Multivariate analysis of covahance was done to test group differences of correct recognition rate and emotional intensity. Conclusion : This is the first report of differential decrease of facial affect recognition in elderly using Korean facial expressions. This study suggests that the decrement of facial affect recognition maye be a part of normal aging process.

Hinman 증후군(비신경인성 신경인성 방광) 1예

이경욱,채정호,이승주,김세웅,박원명,전태연,김광수 大韓神經精神醫學會 2003 신경정신의학 Vol.42 No.3

Objectives : The Hinman Syndrome is a condition representing urinary voiding dysfunction in a neurologically intact child. This syndrome probably is an acquired behavioral and psychosocial disorders. We present a case presenting voiding dysfuntion with no neurologic etiology. Case : The departmcnt of urology consulted the department of psychiatry for a psychiatric evaluation of a 14-year-o1d girl with a history of recurrent urinary tract infections, enuresis, and urinary dribbling since early childhood. She visited the emergency room bccausc of severe abdominal pain and hematuria. She was admitted to the department of urology. Neurological tests showed no abnormality, but a retrograde cystogram showed free vesicoureteral reflux to the level of the dilated intrarenal collecting systems. Marked blunting and dilatation of the caliccs suggested longstanding urinary flow obstruction. She had a history of scparation anxiety disorder and was very competetive, perfectionistic, and nervous. She also had very poor relationships with her friends and had difficults in managing them. Afer admission, she had stent operation and cystostomy. Antidepressant and anxiolytic medications with supportive psychotherapy were administered to treat anxiety, tension and depression. Gradually, her depressive symptoms and voiding difficulties improved. Conclusions : Psychological factors such as a perfectionistic and obsessive personality, a history of severe separation anxiety, stressors from poor interpersonal relationships and Ihe failure of an entrance examination seem to have contributes to the development and exacerbation of the urinary dysfunction. Pharmacotherapy and supportive psycho-therapy may be efective in treating associated psychiatric problems of these patients with hinman syndrome.

韓牛肉의 筋漿蛋白質 및 筋原纖維蛋白質에 대한 加熱處理의 影響(Ⅰ)

河淨昱 건국대학교 1983 論文集 Vol.17 No.1

Heat-induced changes in sarcoplasmic and myofibrillar proteins were studied in samples of 24 hour-postmortem bovine longissimus muscle and semitendinosus muscle heated at 45℃, 55℃, 70℃, respectively. Sarcoplasmic proteins were extracted with 0.25M sucrose buffer solution (pH7.6) and myofibrillar proteins were extracted with 0.6M KCl buffer solution (pH 7.4). The extractability of sarcoplasmic and myofibrillar proteins of longissimus muscle was higher than that of semitendinosus muscle, and the amount of extracted proteins decresed sharply as the heating temperature changed. Consequently, the extracted amount of sarcoplasmic proteins was 220.8mg, 196.8mg, 189.6mg, and 166.8mg from longissimus muscle, and 226.8mg, 189.6mg, 160.8mg and 120.0mg from semitendinosus muscle. And myofibrillar proteins, which were extracted by 0.6M KCl buffer solution, were 94.0mg, 61.0mg, 61.0mg, 30.0mg from loagissimus muscle, and 69.0mg, 59.0mg, 38.0 mg and 30.0mg from semitendinosus muscle, respectively. Molecular changes in sarcoplasmic proteins and myofibrillar proteins were characterized using 7.5% SDS-polyacrylamide gel electrophoresis. The 200,000 dalton component, which appeared in the sarcoplasmic protein electrophore-togram of unheated samples, seemed to be a decomposed residue of heavy meromyosin. The 200,000 dalton component disappeared in the 55℃ treated samples. And the 100,000 dalton component was found in 45℃ and 55℃ treated samples. The proteins of thick filament, thin filament and Z-disks of myofibrils reacted differently to heating. Alpha-actinin was the most labile component and became coagulable at 55℃. Heavy and light chains of myosin became insoluble at 55℃. Actin, tropomysin and troponin were heat resistant, but they became insoluble at 70℃. The 30,000 dalton component, a decomposed component of Troponin T, could not be found in the electrophoretograms of two proteins.

얼굴 인식의 발달학적 관점

채정호,양대현,이경욱,박원명 한국의학사 2004 診斷과治療 Vol.24 No.2