단계형 수준별 수업을 위한 중학교의 수학교과 운영방안

박혜숙,박기양,김영국,박규홍,박운법,김수환,한옥동,Park, Hye-Suk,Park, Gi-Yang,Kim, Yeong-Guk,Park, Gyu-Hong,Park, Un-Beop,Kim, Su-Hwan,Han, Ok-Dong 한국수학교육학회 1997 수학교육논문집 Vol.5 No.-

Rasch 측정모형을 사용한 대학생 대상 다문화 수용성 척도개발 및 타당화

박혜숙(Hye Sook Park) 한국교육심리학회 2013 敎育心理硏究 Vol.27 No.2

본 연구에서는 Rasch 측정모형을 사용하여 다문화 수용성 척도를 타당화하였다. 이전의 연구(박혜숙, 원미순, 2010)를 바탕으로 다문화 수용성을 인지, 정의, 행동 측면에서 문항표본을 확대하고 전국의 4년제 대학생을 대상으로 설문을 실시하였다. 다문화 수용성 척도에 대하여 인지(n=14), 정의(n=12), 행동 측면(n=13)을 나타내는 39개의 문항을 개발하고, 개발한 도구에 대하여 Messick(1989)이 제시한 타당화 관련 4가지 측면(내용, 실제, 내적구조, 일반화)에 근거해서 Rasch 측정모형을 이용하여 타당화 작업을 실시하였다. 분석 결과, 문항 및 피험자의 신뢰도는 상당히 양호아였고, 내용타당도 관련하여 문항이 적절함을 보여주었다. 문항과 피험자를 한 로짓선상에서 비교하여 볼 때, 대체적으로 상위수준의 문항이 더 포함되어야 함을 보여주었다. 표준화 잔차를 사용한 Rasch 모형의 주성분 분석결과, 단일차원이 아님을 보여주었다. Conquest프로그램을 이용한 단일차원 Rasch 모형과 다차원 Rasch 모형 분석 결과. 다차원으로 보는 것이 더 적절한 것으로 나타났다. 유사한 내용의 문항들이 각각의 차원으로 이루어진 점도 있어서, 다문화 수용성은 내용영역에 따라 다른 반응이 가능하다는 점을 보여주고 있다. 이는 교육현장에서는 영역에 따른 프로그램운영의 필요성을 제시한다. 남녀 성차에 따른 문항 간에 있어서 차별기능문항이 존재하는지를 검증한 결과, 문항에 따른 차별기능문항이 나타났다. 추후 부적합한 피험자에 대하여 추가분석이 요구된다. This study was designed to validate a multicultural receptivity scale using the Rasch measurement model. Based on Park&Won`s instrument (2010), more comprehensive items (n=39) that reflect cognitive (n=14), emotional (n=12), and behavioral aspects (n=13) of multicultural receptivity were constructed and administered to students attending four-year universities, located in different parts of Korea. In validation processes. Messick`s (1989) ideas of content-, substantive-, construct-, and generalizability-related validity were applied to the product of a typical, unidimensional Rasch measurement model. Results showed that item and person reliabilities and content-related validity are high. However, when person and items are put on the same logit scale, mort items that capture upper level of ability need to be included. In additional, principal component analysis using Rasch standard residuals did not support the evidence of unidimensionality. Comparing both unidimensional and multidimensional Rasch models using Conquest program, the data supports the existence of multidimensionality. Groups of items formed multiple separate factors (dimensions), which indicates students responses to multicultural receptivity depends on characteristics of item content. This also suggests the possibility of implementing an area-specific multicultural education program. Additionally, several gender-related DIF were also identified. Further investigation may be needed to determine why some data did not fit the model.

군집분석 (Cluster Analysis)을 활용한 사용자 등급 기반의 서비스 수락 정책

박혜숙,백두권,Park Hea-Sook,Baik Doo-Kwon 한국정보처리학회 2005 정보처리학회논문지D Vol.12 No.3

This paper suggests a new policy for consolidating a company's profits by segregating the clients using the contents service and allocating the media server's resources distinctively by clusters using the cluster analysis method of CRM, which is mainly applied to marketing. In this case, CRM refers to the strategy of consolidating a company's profits by efficiently managing the clients, providing them with a more effective, personalized service, and managing the resources more effectively. For the realization of a new service policy, this paper analyzes the level of contribution $vis-\acute{a}-vis$ the clients' service pattern (total number of visits to the homepage, service type, service usage period, total payment, average service period, service charge per homepage visit) and profits through the cluster analysis of clients' data applying the K-Means Method. Clients were grouped into 4 clusters according to the contribution level in terms of profits. Likewise, the CRFA (Client Request Filtering algorithm) was suggested per cluster to allocate media server resources. CRFA issues approval within the resource limit of the cluster where the client belongs. In addition, to evaluate the efficiency of CRFA within the Client/Server environment the acceptance rate per class was determined, and an evaluation experiment on network traffic was conducted before and after applying CRFA. The results of the experiments showed that the application of CRFA led to the decrease in network expenses and growth of the acceptance rate of clients belonging to the cluster as well as the significant increase in the profits of the company. 본 논문에서는 마케팅에서 주로 적용되는 CRM(Customer Relationship Management)의 군집분석 방법을 활용하여 콘텐츠 서비스를 이용하는 고객들을 서비스 패턴에 따라 세분화(Segmentation)하고, 군집별로 미디어 서버의 자원을 차별적으로 할당하여, 기업의 수익성을 높이기 위한 새로운 정책을 제시하였다. 새로운 서비스 정책의 구현을 위해 첫째, 고객 데이터에 대해 군집분석 중에서 K Means Method를 적용하여 고객들의 서비스 패턴 (총 사이트 방문 횟수, 서비스 종류, 서비스 이용 기간, 지불금액, 평균 서비스 시간, 사이트 방문 당 서비스 요금)과 수익에 대한 기석도 둥을 분석하였다. 고객들은 수익에 대한 기여도에 따라 4개의 군집으로 분류되었다. 둘째, 군집별로 미디어 서버 자원을 할당하는 알고리즘인 CRFA(Client Request Filtering Algorithm)를 제시하였다. CRFA 는 고객이 속한 군집의 자원 한도 내에서 승인제어를 실시하는 기능을 수행하였다. 분석된 결과에 의하면 CRFA를 적용하였을 때 기업의 네트워크 비용은 감소하고 기업의 수익에 기여도가 높은 군집에 속한 고객들의 수락률이 높아졌음을 알 수 있었다.

단계적 모델링(Layers of Modeling)을 통한 실습역량 증진 교수.학습법

박혜숙,Park, Hye-Sook 대한안면통증구강내과학회 2012 Journal of Oral Medicine and Pain Vol.37 No.2

치기공과 교육과정에서 다루어지는 보철 및 교정 치과기공물 제작 방법을 습득하기 위한 실습과목은 기능적인 영역이 강조되고 있으므로 학습자의 능력과 개인차를 충분히 고려하여 학습자의 다양한 요구에 부응할 수 있는 교수 학습모형이 필요하다. 이에 저자는 교수 1인이 다수의 학습자들을 대상으로 동시에 실습을 진행해 가는 상황에 대처할 수 있는 교수 학습법을 개발하였다. 시각적 효과에 익숙해져 있는 신세대 학생들의 특성을 고려하여 반복학습이 가능한 동영상을 활용한 온라인 실습교육과 오프라인 실습교육을 혼합한 단계적 모델링(Layers of Modeling)의 교수 학습모형을 시도하였다. 실습과정을 설명하는 동영상을 실습 일 주일 전에 e-클래스에 올려 예습하고 오도록 하고, 수업시간 교수자가 직접 실습과정을 시연하였다. 또한 전 주의 실기성적에 따라 실습실 내 학생들의 좌석배정을 하여 학업성취수준이 높은 학생과 낮은 학생을 짝지어 앉게 하여 개별실습 단계에서 동료지도법이 적용되도록 하여 학업성취수준이 낮은 학생에게 즉각적이고 개별적인 피드백이 자주 제공되도록 하였다. 수업 중에는 실습지침서에 실습결과물에 대한 자가평가를 하여 교수자의 점검을 받도록 하고 수업 후에는 동영상에서의 실습결과물과 비교, 분석하여 반성적 사고를 하도록 하였다. 그 결과 이러한 교수 학습모형은 학습자간 학업성취도의 격차를 좁히는 문제에 있어 해결의 가능성을 보여주어 학업성취도 향상에 긍정적인 영향을 주었다고 볼 수 있다. Let me introduce a teaching method to improve practice capacity in dental laboratary work. I applied theories of layers of modeling and reflection constituting cognitive apprenticeship and peer tutoring to my class. At internet uploading a file showing a practice procedure a week before the class of a course, I let students preview it. During the class I demonstrated the practice procedure in front of students. A superior student and an inferior student paired according to the previous practice grade and a feedback between a peer tutor and a peer tutee was activated. Late in the class, a student self-evaluated his own practice result and had a check of a professor. Finally he compared his own practice result with that in the file uploaded at internet and reflected. This teaching method led to improvement in students' satisfaction and efficiency of learning.

유효검출양자효율과 선량을 이용한 소아 흉부 X-선 영상의 기술적인 인자에 관한 조사

박혜숙,김예슬,김상태,박옥섭,전창우,김희중,Park, Hye-Suk,Kim, Ye-Seul,Kim, Sang-Tae,Park, Ok-Seob,Jeon, Chang-Woo,Kim, Hee-Joung 한국의학물리학회 2011 의학물리 Vol.22 No.4

The purpose of this study was to investigate the effect of various technical parameters for the dose optimization in pediatric chest radiological examinations by evaluating effective dose and effective detective quantum efficiency (eDQE) including the scatter radiation from the object, the blur caused by the focal spot, geometric magnification and detector characteristics. For the tube voltages ranging from 40 to 90 kVp in 10 kVp increments at the FDD of 100, 110, 120, 150, 180 cm, the eDQE was evaluated at the same effective dose. The results showed that the eDQE was largest at 60 kVp when compares the eDQE at different tube voltage. Especially, the eDQE was considerably higher without the use of an anti-scatter grid on equivalent effective dose. This indicates that the reducing the scatter radiation did not compensate for the loss of absorbed effective photons in the grid. When the grid is not used the eDQE increased with increasing FDD because of the greater effective modulation transfer function (eMTF). However, most of major hospitals in Korea employed a short FDD of 100 cm with an anti-scatter grid for the chest radiological examination of a 15 month old infant. As a result, the entrance surface air kerma (ESAK) values for the hospitals of this survey exceeded the Korean DRL (diagnostic reference level) of $100{\mu}Gy$. Therefore, appropriate technical parameters should be established to perform pediatric chest examinations on children of different ages. The results of this study may serve as a baseline to establish detailed reference level of pediatric dose for different ages. 본 연구에서는 피사체에 의한 산란, 초점에 의한 흐림, 기하학적 확대도 그리고 검출기의 특성이 반영된 유효검출양자효율(effective detective quantum efficiency, eDQE)과 유효선량을 평가하여 소아 흉부 X선 촬영 시 선량의 최적화를 위한 조사조건의 영향을 평가하였다. 100, 110, 120, 150, 180 cm의 FDD (focus-to-detector distance)일 때 관전압을 40 kVp에서 90 kVp까지 10 kVp씩 증가시켜가며 동일한 유효선량일 때 eDQE를 평가하였다. 그 결과 eDQE는 다른 관전압과 비교 시60 kVp에서 가장 높은 값을 보였다. 특히, 동일한 유효선량일 때 그리드가 없을 경우 상대적으로 매우 높은 eDQE를 나타냈다. 이는 그리드에 의한 산란선의 감소가 그리드에서 흡수된 유효 광자의 손실을 보상하지 못하기 때문이다. 그리드 가 없을 경우 FDD가 증가할수록 향상된 유효변조전달함수(effective modulation transfer function, eMTF)로 인하여 eDQE는 증가하였다. 국내 대형병원들의 대부분은 15개월 소아의 흉부 X선 촬영 시 그리드와 함께 100 cm의 짧은 FDD를 사용하고 있다. 그 결과 대부분의 경우는 국내 환자선량권고량(diagnostic reference level, DRL) $100{\mu}Gy$을 초과하였다. 이는 5세 소아 흉부 X선 촬영 시 150 cm에서 180 cm 사이의 긴 FDD를 사용하지만, 15개월을 모사하고 있는 표준 소아팬텀의 흉부 X선 촬영의 경우 100 cm의 짧은 FDD를 사용했기 때문이다. 따라서, 나이에 따른 소아의 흉부 X선 촬영을 시행하기 위한 적절한 조사조건이 확립되어야 한다. 본 연구 결과는 나이에 따른 소아 선량의 권고량을 설립하는데 기초자료로 활용될 수 있을 것이다.

경기도 지역 대학생의 측두하악장애증상에 관한 역학적 연구

박혜숙,Park, Hye-Sook 대한안면통증구강내과학회 2007 Journal of Oral Medicine and Pain Vol.32 No.1

An epidemiologic investigation was carried out to determine the prevalence of symptoms of temporomandibular disorders in college students that aged 19-31 years. 460 students were investigated with a questionnaire from September to December 2006. The obtained results were as follows : 1. The prevalence of symptoms of temporomandibular disorders was 80.6%. 2. The most frequently complained symptom was headache and joint sound was the next one without distinct difference between men and women. 3. While the rate of occurrence of symptom of acute malocclusion decreased with age in men, that of TMJ pain during chewing or speech increased with age in women. 4. Symptoms including TMJ pain during mouth opening, chewing or speech, TMJ fatigue and acute malocclusion occurred significantly more frequently in women than in men. Contributing factors including resting cheeks on hands, stressful state, gum chewing, insomnia and clenching occurred significantly more frequently in women than in men. 5. There was a highly significant relationship between symptoms and contributing factors including resting cheeks on hands, stressful state, unilateral chewing, insomnia and clenching. 6. There was a highly significant relationship between symptoms and general personality.

교합학 교과목 완전학습을 위한 개인별 취약단원 진단 및 보완 교수.학습 방법

박혜숙,Park, Hye-Sook 대한안면통증구강내과학회 2010 Journal of Oral Medicine and Pain Vol.35 No.1

I'd like to introduce a teaching method to improve learning efficiency. Most students are likely to ignore what they don't understand in the class of a course. The subject of Occlusion is essential to understanding prosthodontic and orthodontic subjects. It is necessary to let students know and review what they don't understand among parts of a chapter in the course of Occlusion. Therefore I look over the examination papers after every examination and input the problems that each student didn't solve into the C-language computer program and print the list of the contents that each student must study particularly. I give the lists to students and let them review and present their own weak parts of a chapter in the course of Occlusion in the next class. This teaching method leads to improvement in learning and is helpful to students as well as lecturers.

측두하악장애증상자의 성격유형검사(MBTI)

박혜숙,Park, Hye-Sook 대한안면통증구강내과학회 2011 Journal of Oral Medicine and Pain Vol.36 No.1

The purpose of this study is to investigate the relationship between personality type and symptoms and contributing factors of temporomandibular disorders. 199 college students completed the MBTI(Myers-Briggs Type Indicator) and a questionnaire and collected data were analyzed by SAS 9.2 program. The obtained results were as follows : 1. The prevalence of symptoms of temporomandibular disorders and mean scales of positive answers of contributing factors appeared to be higher in I type, S type, T type, P type than in E type, N type, F type, J type. 2. ISTP and ISFP among 16 types of personality seemed to have higher prevalence of symptoms and contributing factors of temporomandibular disorders than other types of personality. 3. Symptom of TMJ pain during mouth opening seemed to occur more frequently in I type, S type, F type, J type than in E type, N type, T type, P type. 4. Contributing factors including clenching and stressful state occurred significantly more frequently in I type than E type. Gum chewing habit occurred significantly more frequently in E type than in I type. 5. Unilateral chewing habit occurred significantly more frequently in J type than in P type. 6. Nervous or sensitive persons had significantly higher mean scales of positive answers of subjective symptoms than relaxed or general persons. 7. General persons had significantly lower mean scales of positive answers of contributing factors than nervous, sensitive and relaxed persons. In conclusion, these results show that there is the relationship between personality and temporomandibular disorders and patient education and counselling considering personality type may contribute to treating patients with temporomandibular disorders.

한국어의 음절말 내파음의 후두조절 -화이비스코프 및 근전도에 의한 관찰-

박혜숙,Park, Hea-Suk 대한후두음성언어의학회 2005 대한후두음성언어의학회지 Vol.16 No.1

It is known that Korean stop consonants in syllable-initial position are of three types : lax, aspirated and forced (or unaspirated). In syllable-final position, however, these three different types are merged to a single type with the same place of articulation, although the original three-way distinction is preserved in Korean orthographic (Hangul) system. Thus the syllable-final stops are phonetically realized as voiceless "applosives" which are characterized by the absence of oral release. The aim of the present study is to investigate the laryngeal adjustments for these syllable-final stops in various phonological conditions by using fiberscope, and, is to further investigate electromyographically the laryngeal adjustments for Korean stops both in the syllable-initial and final positions in various phonological conditions. The results can be summarized as follows : 1. In the case of syllable-initial stops, the glottal widths in each three types of the Korean stops during the articulatory closure are clearly different. And the pattern of thyroarytenoid(VOC) activity appeared to characterize the three different types of Korean stops. 2. The basic laryngeal feature of the Korean syllable-final applosives is characterized by a small degree of glottal opening which begins at or slightly after the oral closure. 3. In the case, syllable-final stop followed by the copula "ita", the syllable- final stop is pronounced as the stop consonant at the initial position of the following syllable containing the vowel[i], the underlying features of three-way distinction for the stops in the Korean orthographic(Hangul) system being manifested at the laryngeal adjustment. 4. In the case of the final applosives followed by the initial stops and fricatives, the laryngeal feature of the final applosives appears to be assimilated by that of the following consonant irrespective of the difference in the place of articulation, as far as the glottal abduction/adduction is concerned. It is clearly demonstrated in the case of syllable-initial stop that thyoarytenoid(VOC) activity is suppressed for the production of the stop consonants in question, the degree of which is slightest for the forced type and most marked for the aspirated type, while it is moderate for the lax type.

폐결핵 재발 환자의 약제 감수성과 재발 간격에 관한 단면 연구 - 서울시 일부 보건소 등록 환자를 중심으로

박혜숙,하은희,위자형,강지용,Park, Hye-Sook,Ha, Eun-Hee,Wie, Cha-Hyung,Kang, Ji-Yong 대한예방의학회 1996 Journal of Preventive Medicine and Public Health Vol.29 No.1

The purpose of this study was examine the general characteristics of relapsed pulmonary tuberculous patients (i.e. age, sex, weight, occupation, previous forms of treatment, drug sensitivity, and the frequency of relapse) in order to improve future treatments of tuberculosis as well as to perpetuate health education. The data was obtained from the medical records of 186 relapsed pulmonary tuberculosis patients who were registered for treatment at various public health offices in Seoul during the year of 1994. The major findings obtained from the study were as follows; 1) The male to female ratio of relapsed pulmonary tuberculous patients was about 7:3, more specifically 23.7% of the men and 30.9% of the women were between 20 and 29 years of age. 2) Comparing initial less aggravated states to relapsed states, patients with minimal X-ray findings later proved moderately advanced X-ray findings. Furthermore, patients with negative sputum AFB findings later proved positive sputum AFB findings. 3) Of the 186 patients studied, 91.9% suffered, relapse and 8.1% suffered 2 or more relapses. Of the patients who suffered at least 1 relapse, 54.8% received short-term treatment, 26.9% received long-term treatment, and 18.3% received treatment of an unknown during their initial tuberculosis treatment periods. 4) fifty five point four percent of the patients had no reaction to the drug treatment(not available), 25.9% of the patients had sensitive reaction to the drug treatment, 18.7% of the patients had resistant reaction to the- drug treatment. Drug resistance was higher in patients that exhibited positive X-ray findings as well as in patients that exhibited positive sputum AFB findings. furthermore, patients receiving treatment of an unknown nature(35.5%) exhibited higher drug resistance than those receiving short-term treatment(13.6%) and long-term treatment(17.0%). 5) Of the 160 patients who suffered relapses, 8.8% suffered a relapse within 1 year after treatment and 91.2% suffered a relapse at least 1 year after treatment. Furthermore, our study showed that women, under 30, who received short-term treatment and encounterd complications during their primary treatment suffered relapses faster than any other groups studied. In addition, minimal X-ray findings and sputum AFB findings were not correlated to the time relapse occured. Therefore, the seater efforts are needed to prevent relapsed pulmonary tuberculosis.