초등학생에서 인두배양과 항-OF 항체 보유율

정현주,김선주,김윤정,맹국영,정현주,김선주,김윤정,맹국영 대한임상병리학회 1998 대한임상병리학회지 Vol.18 No.3

인지도구(Mindtool)의 기능에 대한 이해 : 미술활동을 중심으로

정현주,박혜정 경주대학교 정보전자기술연구소 2002 情報電子技術論叢 Vol.1 No.-

The current research aims to provide a theoretical framework of information technology (IT) as a cognitive tool. The framework is expected to provide an opportunity to reconsider IT's proper adaptation to the needs of this knowledge based information society. A 'tool' has been developed as a means for better production. However, the current society may no developed as a means for better production. However, the current society may no longer require such a physical function of tools. An expansion in the amount of knowledge and its speedy generation are likely to bring the demand of cognitive tools, which assist human's mental processing and enhance mental capacities. In particular, a review of advanced knowledge on an architecture of human cognition suggests that human's information knowledge on an architecture of human cognition suggests that human's information processing capacity may be extremely limited so cognitive overload is likely to occur. Cognitive tools are thus suggested to play a role of distributed intelligence, which assists to reduce human's mental activities by its implications as mindtool. These may include computing, guided participation by a group of peers, instructors, or experts, inscriptional systems such as paper and pencil, computer and display, and situated cognition by ecological memory. In the current research, the effect of computer graphics as a mindtool on art work has been specifically examined. A review of cases of its application to art education in overseas suggests the practicality of the theoretical framework. Further studies are recommended to explore the details of cognitive activities, which are augmented with various mindtools.

우리 아이들이 바라는 세상

정현주 국립특수교육원 2002 현장특수교육 Vol.8 No.5

21세기 한국의 비젼과 세계화의 지표

정현주 이화여자대학교 대학원 1995 硏究論叢 Vol.28 No.-

학습 내용이 어려워지는 이유

정현주 경희대학교 부설 교육문제연구소 2000 論文集 - 경희대학교 교육문제연구소 Vol.16 No.-

본 논문은 학습내용의 구조적 특성을 학습자의 인지 과정에 의하여 바라보고 있다. 정보처리 이론의 관점에서, 학습자가 느끼는 어려움의 요인을 처리 역량의 한계성으로 보고, 내용의 본질적 구성과 제한된 인지 자원간의 관계를 살펴보았다. 선행 연구 결과를 통하여 도식과 문제 진술로 구성된 수학 문제에서처럼 동시에 처리되어야 하는 요소들을 포함하고 있는 학습 내용은 개별적으로 습득될 수 있는 단어 학습의 경우보다 쉽게 인지부화에 이르게 된다는 것을 확인할 수 있었다. 기억활성장치가 다중 채널로 구성되었을 것이라는 일반적 가정에 근거하여, 시청각 이중 채널 제시 양식의 효과에 대한 선행 연구 결과들은 각 채널의 처리 한계량을 넘어서는 복잡한 시각 정보 흑은 청각 정보도 학습 실패를 가져오는 원인이 된다는 것을 알 수 있었다. 이들은 학습내용의 본질적 구조나 양으로 인하여 발생되는 인지 부화의 요인들로서 전체 인지부담을 최소화하기 위해 상대적으로 중요성이 부각되는 효과적 교수전략이 대안으로 제시되었다. The way of which material is consisted has been analysed along the way in which the learner processes the material. With respect to the theory of information processing, a source of difficulty is often considered as the limits of processing capacity, In this paper, the relation of material's intrinsic structure to the limits of mental resources has been focused, Previous experimental research tells that the elements of material, which requires simultaneous processing, are likely to bring the cognitive overload, compared to the elements, which allows individual processing. A geometry problem, consists of diagram an problem statement, provides an example of the former, while vocabulary learning is the latter where the meaning of a word can be learned regardless what the next word is. The outcome of learning is affected not only the total amount of cognitive capacity but also the capacities of each channel, auditory or visual channel. A review of previous studies draws the assumption that complex visual or complex auditory material is likely to entirely occupy all the available processing capacity and so no resource is available for the process of auditory or visual material, presented at the same time. Intrinsic sources of cognitive load by the structural complexity of material is the primary cause of difficulty in learning. Alternatively, an effective instructional strategy has been suggested to minimize the cognitive load overall for the learning of such material.

여름 휴가를 위한 식사계획 세우기

정현주 사단법인 한국당뇨협회 1994 당뇨 Vol.57 No.-

급속진행형치주염에서 치석제거술과 국소 약물송달제재의 병용효과

정현주,진유남,송우성,김영준,Chung, Hyun-Ju,Jin, Yu-Nam,Song, Woo-Sung,Kim, Young-Jun 대한치주과학회 1994 Journal of Periodontal & Implant Science Vol.24 No.3

Rapidly progressive periodontitis is known to be usually associated with systemic problems and improved with antibiotic therapy. Recent experiments in which bioresorbable polycaprolactone was polymerized with minocycline has shown that the system released effective antibiotic concentration during the 7 days' period. This clinical trial was to compare the efficacy of a minocycline film(poly-caprolactone+polyglycol+10% minocycline) insertion plus supragingival scaling(MS) or subgingival scaling & root planing(MSRP) with the scaling(S) or subgingival scaling & root planing alone(SRP), at improving the periodontal condition in RPP. Fifteen patients were examined for plaque accumulation, gingival inflammation, probing depth and attachment loss at baseline, then 1, 2, 4 and 8 weeks after 4 treatment regimens were randomly undergone in 4 comparable sites(PD>5mm, LA>3mm) in each subject. Results revealed statistically significant treatement effect with a reduction in a probing depth in SRP(2.0mm), MS(1.8mm), and MSRP(2.1mm). There was no significant reduction in the supragingival scaling alone group(0.6mm). Similarly, attachment levels were significantly improved in the SRP(1.5mm), MS(2.0mm) and MSRP(2.0mm) groups. Net % BOP reduction at 8 week compared to baseline was 6.7% (S), 26.7% (MS), 26.7% (SRP), and 33.3% (MSRP). MSRP produced the greatest improvement in BOP at 8 week. This data suggests that a subgingival minocycline delivery system as a adjunct to scaling alone or scaling & root planing may produce significant clinical benefits over scaling alone in rapidly progressive periodontitis patients.

치주조직재생유도술용 비흡수성 차폐막 (e-PTFE membrane)에의 세균부착 및 침투

정현주,이성미,이호재,김옥수,Chung, Hyun-Ju,Lee, Sung-Mi,Lee, Ho-Jae,Kim, Ok-Soo 대한치주과학회 1996 Journal of Periodontal & Implant Science Vol.26 No.1

This study was performed to observe the bacterial adhesion and penetration to e-PTFE membrane following guided tissue regeneration(GTR) procedure and to evaluate the association of the membrane exposure and bacterial contamination with the clinical outcome. For the study, ten infrabony defects in 9 patient were treated by mucoperiosteal flap operation including placement of the e-PTFE membrane. The treated teeth were monitored weekly for the membrane exposure, gingival recession and gingival inflammation. The membranes were retrieved after 4 to 6 weeks, examined by SEM for bacterial contamination and adherent connective tisue elements, and observed under LM for the bacterial penetration into membrane. Three months postsurgery, the defect sites were clinically reexamined for the changes in attachment level and probing depth. Comparison of the ultrastuctural findings and clinical outcome revealed that extent of membrane exposure and bacterial contamination of the membrane was inversely associated with clinical attachment gain. From this finding, the extent of membrane exposure and the bacterial contamination on the apical portion of the e-PTFE membrane at the time of removal seemed to be a critical determinant on the clinical outcome of GTR and the membrane exposure needs to be controlled for optimal results.

英國의 穀物法 廢止에 관한 一考察

정현주 이화여자대학교 대학원 1978 硏究論叢 Vol.8 No.-

진행성 치주염에서의 치은열구액내 교원질분해효소 활성

정현주,Chung, Hyun-Ju 대한치주과학회 1996 Journal of Periodontal & Implant Science Vol.26 No.1

There were many reports that elevations in the levels of active and latent collagenase in gingival crevicular fluid(GCF) have been correlated positively with periodontal disease activity. To provide a simple diagnostic approach for testing GCF collagenolytic activity, the detection limit of enzyme activity was compared using radiofibril assay(Sodek et.al.1981) and spectrophotometric collagenolytic assay(Nethery et al. 1986). The detection limits of both assay for standard bacterial enzyme were similar and the radiofibril assay showed a little (1/2) lower detection limit for tad pole collagenase. To evaluate the relationship between periodontal tissue destruction and the collagenolytic activity, GCF was collected, and latent and active enzyme activities were measured by a spectrophotometric collagenolytic assay. Twelve subjects showing progressive lesions were selected according to the presence of immediate tissue destruction, frequent abscess formation, and increasing need for tooth extraction, and the absence of underlying systemic disease and previous antibiotic medication history within 6 months. Comparisons were made between sites with either: 1) inflammation with a previous history of progressive loss of periodontal tissue and bone support(2l progressive sites): 2) previous history of bone loss and periodontal destruction but now clinically stable(12 comparably stable sites); or 3) no loss of periodontal tissue and bone support(11 control sites including 5 gingivitis sites and 6 healthy sites). Active collagenase activity was the highest in the progressive sites and decreased in the order of the gingivitis sites, the stable sites, and the healthy sites. The total enzyme activity was $2{\sim}3$ fold higher in the progressive sites and the gingivitis sites, compared to the stable and the healthy sites. The ratio of active to total collagenolytic activity was twice in the progressive sites. Analysis of active collagenase level(5mU) and the ratio of active to total collagenolytic activity(0.8) as a diagnositic test indicates that these measurements have the sensitivity of 0.81 and 0.86, the specificity of 0.70 and 0.65, and the overall agreement of 0.75 and 0.73, respectively. Thus, this method has significant merits as a diagnostic tool to determine wherher the site is in a state of remission or progression.