석류 과피 추출물의 라디칼 소거활성

최윤정,오영지,정동선 서울여자대학교 2010 자연과학연구논문집 Vol.22 No.-

Antioxidant activity and total phenolic contents of Punica granatum peels were investigated. The pomegranate peels were extracted with 70% methanol (ME) and then partitioned to hexane (HF), ethyl acetate (EAF) and water (WF) fractions. Total phenolic contents and radical scavenging activities of each extract and fraction from Punica granatum peels were measured. The ethyl acetate fraction showed the highest radical scavenging activity, followed by methanol extract, water fraction and hexane fraction. The IC50 values of EAF were 0.144 ㎍./mL and 0.50 ㎍./mL for DPPH and ABTS radicals scavenging activities, respectively. A strong antioxidant activity of the EAF from pomegranate peels was correlated with its high level of total phenolic contents (740.0 mg of tannic acid equivalent/g). ME and WF also exhibited relatively strong radical scavenging activities with IC50 values of 6.70 ㎍./mL and 7.25 ㎍./mL for DPPH radical, and 17.4 ㎍./mL and 18.33 ㎍./mL for ABTS radical, respectively. These results suggest that the pomegranate peels possess strong antioxidant activity, and can be a useful source of natural antioxidant.

Wilson's Disease 2예

고지영,안병철,이현옥,권오상,최진영 중앙대부설한국의과학연구소 1989 한국의과학 Vol.21 No.3

거대한 뇌수막류 수복후 두개골 재건술의 경험례

고영초,최병욱,서인석,하지운 大韓成形外科學會 1993 Archives of Plastic Surgery Vol.20 No.1

Encephalocele is defined as and "extracranial protrusion through a congenital opening in the skull. usually in the midline, of meninges, CSF, and/or cerebral parenchyma". The defect contatins only meninges and CSF or cerebral tissues as well, They can occur anywhere from the occiput to the nasofrontal region and are almost in the midline, Only rarely do they appear lateral to the sagittal plane. The authors experinced one case of encephalomeningocele and it was corrected by "Staged operation, the removal of encephalomeningocele, the V-P shunt operation and cranioplasty with calvarial bone graft and remodeling". After performing the staged operation we have followed the patient for about two years and the result was remarkably promising with normal development in speech, behavior, intellignce and physical status without any adverse neurologic sequelae.

만성 염증성 탈수초성 신경병증 1예

고지영,김우정,안병철,최진영,권오상 중앙대부설한국의과학연구소 1990 한국의과학 Vol.22 No.2

하악 소구치에 발생한 치외치의 치근단유도술

이지민,최영철,김광철,최성철 大韓小兒齒科學會 2009 大韓小兒齒科學會誌 Vol.36 No.2

치외치(Dens Evaginatus)란 교합면에 법랑질이 원추형으로 돌출되어 결절을 형성한 치아로 치아발육중 법랑기의 내측법랑상피가 외부로 과증식되거나 치수 간엽조직이 국소적으로 과증식되어 나타난다. 결절은 교합력이나 저작에 의해 파절 또는 마모되기 쉬우며 따라서 이로 인하여 치수노출에 의한 감염이 야기될 수 있다. 치외치는 예방목적으로 결절을 주기적으로 조금씩 갈아주어 2차 상아질을 유도하거나 전색제등으로 결절주위를 보강하여 자연마모를 유도할 수 있다. 반면 이미 증상을 보인 치아에 대해서는 근관치료를 시행하거나, 미완성치근인 경우 치근단유도술(Apexogenesis)이나 치근단형성술(Apexification)을 시행한다. 치근단유도술이란 생활력을 가진 미성숙 영구치의 손상, 또는 치아우식에 의한 치수노출 시 치수절단술을 시행하여 치수의 생활력을 유지시켜 정상적인 치근으로 발육하도록 유도하는 술식을 말한다. 주로 수산화칼슘을 이용한 통상의 치수절단술이 이용되고 이후 계속적인 치근형성 확인을 위해 주기적 방사선검사가 요구된다. 본 증례는 하악 좌측 제2소구치 부위의 동통을 주소로 내원한 환자에 대한 것으로, 임상검사결과 양측 소구치 부위에 치외치를 확인하게 되었다. 이에 수산화칼슘을 통한 치근단유도술을 시도하였고, 3년간 주기적 내원을 통해 치료한 결과 치근의 근심면의 비정형적 발달을 보였다. 현재 이 치아는 임상증상과 방사선 사진을 통해 확인한 결과 특이한 염증소견 없는 예후를 보이고 있기에 보고하는 바이다. Dens evaginatus is a dental anomaly most commonly seen in premolar teeth in which a tubercle or protuberance projects from either the center of the occlusal surface or the buccal triangular ridge. These tubercles are easily fractured from mastication as the tooth erupts and frequently leads to pulp necrosis as a common complication. To prevent these sequelae, prophylactic treatment soon after the tooth starts erupting is essential. These preventive treatments include, selective grinding and protection of the tubercle by pit and fissure sealant. When the tooth does shows signs of pulp necrosis and apical periodontitis, endodontic procedures are needed. Apexification and apexogenesis are usually the treatment of choice for the affected teeth which have immature apices. Apexogenesis is a vital pulp therapy procedure performed to encourage continued physiological development and formation of the root end. It involves removal of the inflamed pulp and the placement of calcium hydroxide on the remaining healthy pulp tissue. This case report describes an atypical apexogenesis of a mandibular premolar which showed to be a dens evaginatus. The tooth which was treated with calcium hydroxide shows good results and is planned for permanent root canal filling.

항 혈소판 요법을 이용한 관동맥내 Stent 삽입술의 조기 결과

손지원,김영준,손민수,오세진,안태훈,최인석,신익균 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.6

영․유아 그림 표상 특성에 관한 연구

이승옥,최은영,임지향 대구대학교 특수교육재활과학연구소 2005 再活科學硏究 Vol.23 No.2

The purpose of this study was to refer a symbolic characteristic of painting during scribbling period by applying a task condition, to present basic data about effective symbolic painting by analyzing a process of a construct activity, and to examine verification of effectiveness in the Korean infant. The one way anova is carried out to find out a symbolic characteristic of painting of Age(4)X group and the two way anova to Group(2)×Age(4), is conducted to figure out the difference of NC performance owing to task presented type upon age bracket. The followings were ostensive purposes of this study. First, there would be differences in symbolic characteristic by tasks and ages(the total score, the score of symbol inside the outline, the score of constituent, the score of pair symbolic). Second, the NC performance would differ in symbolic characteristic by age and painting type(the total score, the score of symbol inside the outline, the score of constituent, the score of pair symbolic). The study participants were randomly selected one - three years old infants (total of 80) who attend in an infant home in northern Daegu. They were divided in four groups. Each age group was presented two type of painting and multivariate analysis was taken in order to compare and analyze paintings. The result of this study was followed. First, the characteristic of painting symbol was different by task and age. The expressive ability in total score, constituent of object, pair symbolic in P task and DC task was increased as aging. Among the group of infants aged 1.5 - 2.5, P task was performed better than DC task, and the score of P task and DC task was equally heightened as they become age of 3. Second, NC performance owing to task presented type upon age bracket would be different (the total score, the score of symbol inside the outline, the score of constituent, the score of pair symbolic). The older has shown more expressive ability in two type of painting. NC task was taken after pre- P task and -DC task, but the symbolic score of NC task differed from. NC task followed by P task represented the more constituents and pair symbols than by DC task. Therefore, this study found out that the development of symbolic level in infant had close relationship with an age, the symbolic abilities in different painting tasks differed order of P task, DC task, and NC task, and symbolic painting was shown from infant age 1.5-2. 본 연구는 초기 그림 표상 출현과정을 살피기 위한 것으로 구체적인 가설은 다음과 같다. 첫째, 과제별 연령에 따른 그림 표상의 특성(총점수, 윤곽선 안의 표상의 점수, 대상의 구성요소 표상의 점수, 쌍표상의 점수)은 차이가 있을 것이다. 둘째, 연령별 과제 제시유형에 따른 NC과제 수행(총점수, 윤곽선 안의 표상의 점수, 대상의 구성요소 표상의 점수, 쌍표상의 점수)은 차이가 있을 것이다. 연구대상은 00시에 위치한 어린이집에 재원중인 1-3세 유아 총80명을 무선선정하여 연령별로 4집단을 나누고 각 연령집단별로 두 그룹으로 나누어 서로 다른 유형의 과제를 실시하였다. 즉 한 그룹은 P과제 이후 NC과제를 실시하였고, 다른 한 그룹은 DC과제 이후 NC과제를 실시하였다. 과제실시 이후 각 과제에서 얻어진 표상그림을 채점하였다. 자료처리는 과제별 연령에 따른 그림표상의 특성을 살펴보기 위해 연령(4)x집단간의 일원 다변량분석을 실시하였고, 연령별 과제 제시유형에 따른 NC과제 수행의 차이를 보기 위하여 집단(2)×연령(4)에 대하여 2원 다변량분석을 실시하였다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 과제별 연령별에 따른 그림 표상의 특성은 차이가 있다. 연령에 따라 P과제 또는 DC과제 모두가 총점수, 대상의 구성요소, 쌍표상의 표현능력은 연령이 높음에 따라 표상능력이 증가함을 알 수 있었다. 1.5세-2.5세에서는 P과제가 DC과제보다 훨씬 잘 수행했으며 3세가 되면서 P과제와 DC과제 점수가 같이 높아졌다. 둘째, 연령별 과제 제시유형에 따른 NC과제 수행은 차이가 있다. 연령이 증가 할수록 과제 제시유형에서 과제의 표상 능력도 증가하였다. 연령에 따라 P과제 선행 후 NC과제와 DC과제 선행 후 NC과제의 표상의 점수는 다르다. P과제 선행 후 NC과제가 DC과제 선행 후 NC과제에서 보다 더 많은 대상의 구성요소, 쌍표상을 표현한 것으로 나타났다. 따라서, 본 연구를 통해 유아의 표상 수준의 발달은 연령과 밀접한 관계가 있고 과제에 따른 그리기 표상능력도 P과제, DC과제, NC과제 순으로 일어나며, 표상적 그리기가 1.5세와 2세경에 시작된다는 것을 보여준다.

Cryptococcal 뇌막염이 병발된 수막 암종증 1예

안병철,고지영,이현옥,최진영,권오상,박용욱 중앙대부설한국의과학연구소 1990 한국의과학 Vol.22 No.1

Comparison of Meat Quality and Fatty Acid Composition of Longissimus Muscles from Purebred Pigs and Three-way Crossbred LYD Pigs

Choi, Yeong-Seok,Lee, Jin-Kyu,Jung, Ji-Taek,Jung, Young-Chul,Jung, Jong-Hyun,Jung, Myung-Ok,Choi, Yang-Il,Jin, Sang-Keun,Choi, Jung-Seok Korean Society for Food Science of Animal Resource 2016 한국축산식품학회지 Vol.36 No.5

This study was conducted to find pork quality to meet the needs of consumers. Thus, the meat quality and fatty acid composition of longissimus muscles from purebred pigs (Landrace, Yorkshire, and Duroc) and three-way crossbred LYD pigs were compared and evaluated. Chemical compositions of longissimus muscles were significant (p<0.05) different among pigs. Duroc contained significant (p<0.05) higher fat contents than other pigs, whereas significant (p<0.05) higher moisture contents were observed in Landrace, Yorkshire, and LYD pigs compared to those of Duroc pigs. The values of pH_{24 h} and pH_{14 d} were the highest in Landrace pigs. Myoglobin contents of LYD pigs were higher (p<0.05) than those of purebred pigs. Regarding meat color, Duroc and Yorkshire pigs had higher redness values than Landrace and LYD pigs, while Landrace pigs had the lowest (p<0.05) color values among all pigs. There was no significant difference in shear force or water holding capacity (WHC). Duroc pigs maintained the lowest drip loss during 14 d of cold storage. In sensory evaluation, the marbling scores of Duroc pigs were higher (p<0.05) than other pigs. Regarding fatty acid compositions, total USFA, poly-, n-3, and n-6 contents were the highest (p<0.05) in LYD pigs, while total SFA contents were the highest (p<0.05) in Duroc pigs. Based on these results, purebred pigs had superior overall meat quality to crossbred pigs.

간호학 전공 대학생의 임상 실습 관련 교육 어플리케이션에 대한 사용의도의 영향요인에 대한 연구

조윤정,김영순,박계영,김혜림,최일향,강보영,백진아,정수진,전영지,정연주 이화여자대학교 간호과학대학 2015 이화간호학회지 Vol.- No.49

Purpose: This study examined perceptions and intentions of nursing undergraduates to use educational mobile applications for clinical nursing-practice training. Methods: Participants were 189 junior and senior nursing undergraduates from 14 Korean universities, experienced in clinical practice and educational nursing mobile applications. Using a convenience sampling method, the questionnaire was Sim’s Perceptions and Intentions tool. Statistical analyses were conducted by t-test, one-way ANOVA, correlation, and multiple regression analysis with SPSS 22.0 Windows software. Results: Statistically significant differences emerged between those who used smartphones for more than 4 hours (18.56 ± 4.58) and less than 2 hours (15.84 ± 4.35) per day (F = 3.25, p = .041). Perception and intention of educational-applications use correlated positively (r = .723, p < .001). Performance expectancy (β = .225, p = .002), attitude toward technology (β = .446, p < .001), facilitating condition (β = .132, p = .022), and self-efficacy (β = .168, p = .008) were statistically significant predictors of intention to use educational mobile applications (Adjusted R2 =.616, p < .001). Conclusion: Attitude toward using technology, performance expectancy, and self-efficacy will improve use of nursing educational mobile applications for clinical nursing-practice training. Developers should consider students’ experience in clinical-nursing practice and readiness to use mobile technology.