게임전략을 활용한 문학적 접근활동이 유아의 음운인식능력 및 쓰기능력에 미치는 영향

전아영(Ah Young Jeon),최미숙(Mi Sook Choi) 한국아동학회 2012 아동학회지 Vol.33 No.5

The purpose of this study was to examine the effects of the literary approach using a game strategy on young children`s phonological awareness and writing abilities. The subjects were selected from two classes of ``H`` and ``M`` Kindergarten in G city. The research tools used were the Phonological Awareness Ability Test, which was corrected by Jo, Kim, and Jeong(2006) and used to measure young children`s phonological awareness abilities, and Lindberg(1987)`s Kindergarten Writing Assessment which was adapted and used by Noh(1994) in order to assess writing abilities. The literary approach activity using a game strategy used in this study resulted in an improvement in young children`s phonological awareness abilities and writing abilities. These results suggest that these activities are valuable tools and can be applied successfully in the childhood education field as teaching aids.

3축 가속도 센서를 이용한 낙상 검출 시스템 구현

전아영(Jeon, Ah-Young),유주연(Yoo, Ju-Yeon),박근철(Park, Geun-Chul),전계록(Jeon, Gye-Rok) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.5

본 연구에서는 3축 가속도 신호를 이용하여 낙상과 낙상 방향을 검출하는 시스템을 구현하였다. 가속도 신 호는 3축 가속도 센서로부터 획득하였으며, 획득된 신호를 USB 인터페이스를 통하여 PC에 전달하였다. PC에 전송 된 신호를 제안한 알고리즘을 사용하여 낙상을 검출하였으며, 퍼지 분류기를 사용하여 낙상의 방향을 분류하였다. 실 험을 위하여 실험대상군 6명 선정하였으며, 가슴에 가속도계를 부착한 후 실험을 수행하였다. 실험대상자는 5초 동 안 정상 보행을 한 후 4 가지 방향(전․후․좌․우)으로 낙상이 발생하도록 하였으며, 낙상에 소요되는 시간은 최소 2초 로 설정하였다. 본 연구에서 제안된 알고리즘을 이용하여 낙상을 검출하였으며 낙상 발생 후 1초부터 데이터를 분석 하고 퍼지 분류기를 이용하여 낙상방향을 분류하였다. 낙상 검출율은 평균 94.79%이었다. 낙상 방향에 따른 분류율 은 front_fall은 95.83%, back_fall은 100%, left_fall 은 87.5%, right_fall은 95.83%이었다. In this study, the falls detection and direction classification system was implemented using 3-axial acceleration signal. The acceleration signals were acquired from the 3-axial accelerometer(MMA7260Q, Freescale, USA), and then transmitted to the computer through USB interface. The implemented system can detect falls using the newly proposed algorithm, and also classify the direction of falls using fuzzy classifier. The 6 subjects was selected for experiment and the accelerometer was attached on each subject's chest. Each subject walked in normal pace for 5 seconds, and then the fall down according to the four direction(front_fall, back_fall, left_fall and right_fall) during at least 2 second. The falls was easily detect using the newly proposed algorithm in this study. The acquired signals were analyzed after 1 second from generating falls. The fuzzy classifier was used to classify the direction of falls. The mean value of the falls detection rate was 94.79 %. The classifier rate according to falls direction were 95.83% in case of front falls, 100% incase of back falls, 87.5% in case of left falls, and 95.83% in case of right falls.

고주파 저스트레인 골자극 인가용 진동 시스템 개발

유주연,박근철,전아영,김윤진,노정훈,전계록,Yoo, Ju-Yeon,Park, Guen-Chul,Jeon, Ah-Young,Kim, Yun-Jin,Ro, Jung-Hoon,Jeon, Gye-Rok 대한의용생체공학회 2011 의공학회지 Vol.32 No.2

In this study, the system for application of the bone stimulation was implemented using high frequency and low strain method. The whole system consists of the high frequency and low strain vibration stimulation system 177 for stimulating bone, LVDT sensor, and wireless sensor based on tri-axial accelerometer. To evaluate the usefulness of the system, the frequencies and accelerations from function generator were applied to the vibration stimulation system. The range of frequency was 17 Hz, 30 Hz, 45 Hz, 50 Hz and the range of acceleration was set 0.3 g, 0.6 g, 1g, and 2 g. The measured frequencies and acceleration using LVDT (linear variable difference transformer) sensor and 3-axial accelerometer were estimated and compared. The range of frequencies average difference was from 0.0 to 0.004 Hz. As the standard deviation of frequencies estimated by LVDT sensor and accelerometer was below 0.03 Hz and the output frequencies of function generator were similar: Also the results of t-test were satisfied with conditions of p > 0.05. And the acquired frequencies and acceleration from vibration measuring device module were estimated and analyzed. As the mean of accelerations was similar to the acceleration applied from function generator. And the standard deviation of acceleration estimated from vibration measuring device module was ranged from 0.019 g to 0.038 g. Also the results of t-test were satisfied with conditions of p > 0.05. Therefore, these results were airy similar to the acceleration applied from function generator. As a result, the usefulness of the system was confirmed. n a further study, clinical experiment will be carried out with the authorization of IRB (institutional review board) so that appropriate frequency and strain would be investigated in clinical field.

다지역 임상시험의 계획 및 설계에 대한 국제 제도적 동향 분석

송윤경,손민지,전아영,김재현,지은희,오정미,김인화,Song, Yun-Kyoung,Sohn, Minji,Jeon, Ah Young,Kim, Jae Hyun,Ji, Eunhee,Oh, Jung Mi,Kim, In-Wha 한국임상약학회 2018 한국임상약학회지 Vol.28 No.2

Objective: Multi-regional clinical trials have been widely used for accelerating global drug development by multinational pharmaceutical companies. In this study, we aimed to review and analyze the international trends in regulations and guidelines on multi-regional clinical trials by regulatory authorities and international organizations, such as International Conference on Harmonisation, for referring to policies, including development of domestic guidelines for multi-regional clinical trials. Methods: The policies, regulations, and guidelines published by the US Food and Drug Administration, European Medicines Agency, Pharmaceuticals and Medical Devices Agency (Japan), and China Food and Drug Administration were searched, and the International Conference on Harmonisation E17 draft guideline was reviewed. Results: The regulatory authorities in developed countries have developed and implemented regulations and guidelines on multi-regional clinical trials to promote simultaneous global drug development and evaluate the regional differences in drug safety and efficacy. International Conference on Harmonisation developed the draft guideline for planning/designing of multi-regional clinical trials in 2016, which recommends the general principles for strategy-related issues and design of multi-regional clinical trials, and for protocol-related issues, such as consideration of regional variability, subject selection, dose selection, endpoints, comparators, overall sample size, allocation to regions, collecting information on efficacy and safety, and statistical analysis. Conclusion: It is important to understand the international regulatory requirements for designing and planning of multi-regional clinical trials for global drug development. Moreover, it is necessary to prepare multi-regional clinical trial guidelines in accordance with the Korean regulation for clinical trials and drug administration.

HsCRP와 맥파전달시간에 대한 연구

김윤진,민홍기,김영주,전아영,전계록,예수영,Kim, Yun-Jin,Min, Hong-Gi,Kim, Young-Joo,Jeon, Ah-Young,Jeon, Gye-Rok,Ye, Soo-Young 한국생명과학회 2007 생명과학회지 Vol.17 No.2

The purpose of this study is to evaluate the relationship between high sensitive C-reactive protein (hsCRP) and pulse transit time (PPT). Apparently healthy 233 subjects had been enrolled in the health promotion center of the Pusan National University Hospital from Jan. 29 to Feb. 26, 2004. They had no previous history of diabetes, hypertension and hyperlipidemia. Subjects were categorized according to tertiles of hsCRP level [Group 1: first tertile $(0.01\;{\sim}\;0.02\;mg/dl)$, Group 2: second tertile $(0.03\;{\sim}\;0.05\;mg/dl)$, Group 3: third tertile $(0.06\;{\sim}\;0.12\;mg/dl)$, and Group 4: Fourth tertile $(0.13\;{\sim}\;16.8\;mg/dl)$]. PTT body mass index (BMI), total cholesterol (T-C), LDL-cholesterol(LDL-C), blood sugar (BS), systolic blood pressure (sBP) and diastolic blood pressure (dBP) were significantly different among hsCRP groups (p<0.05). HsCRP is positively related with BMI, tryglyceride (TG), LDL, sBP and dBP (p<0.05), and negatively related with PTT and HDL-cholesterol (HDL-C) (p<0.05). PTT is significantly negatively related with hsCRP, T-C, TG, LDL-C, BS, dBP and sBP (p<0.05). The hsCRP and PTT were related before controlling BMI, T-C, LDL-C, sBP, and dBP, but not related after conkolling. The relationship between hsCRP and PTT depends on cardiovascular disease risk factors. 동맥경화정도를 반영하는 hsCRP (high sensitive C-reactive protein)와 경화 정도에 의한 혈류속도의 변화를 반영하는 맥파전달시간 (pulse transit time, PTT)와의 임상적 연관에 대해서는 잘 연구되어 있지 않다. 이에 본 연구에서는 hsCRP와 PTT의 연관에 미치는 영향 요인을 알아보고자 하였다. 2004년 1월 29일에서 3월 2일까지 부산의 한 대학병원 건강증진센터의 수진자중에 당뇨와 고혈압 고지혈증 경력이 없는 20세 이상의 성인 233명을 대상으로 PTT을 측정하고, hsCRP와 관련 변수에 대한 검사를 실시하여 관련성을 분석했다. 연구군은 hsCRP값에 따라 4분위군으로 나누었다. 각 군의 중앙값과 범위를 보면 1분위군은 0.02 mg/이 (0.01 ${\sim}$0.02), 2분위군은 0.04 mg/이 (0.03 ${\sim}$ 0.05), 3분위군은 0.08 mg/이 (0.06 ${\sim}$ 0.12), 4분위군은 0.24 mg/이 (0.13 ${\sim}$ 16.8)이었다. 각 군에 따른 PTT와 체질량지수, 혈중지질, 혈당, 혈압의 차이를 일원분석을 할 결과 HDL 콜레스테롤을 제외한 모든 변수가 유의한 차이를 나타내었다 (p<0.05). 상관분석에서 hsCRP는 체질량지수, 총콜레스테롤, 중성지방, 저밀도콜레스테롤, 수축기와 이완기혈압에 양의 상관관계가 있었고 (p<0.05), PTT와 저밀도콜레스테롤과는 음의 상관관계가 있었다 (p<0.05). PTT는 hsCRP, 총콜레스테롤, 중성지방, 저밀도콜레스테롤, 공복혈당, 이완기혈압, 수축기혈압과 음의 상관관계가 있었으며 (p<0.05), 고밀도 콜레스테롤과는 상관관계가 없었다. 독립변수를 hsCRP군으로 하고, 반응변수를 PTT로 한 일반선형모델의 단변량 분석결과 hsCRP군에 따라 PTT가 유의한 차이가 있었고 (p<0.05), 연령과 성별을 통제한 후에도 유의한 차이가 있었다 (p<0.05). 연령과 성별 외 체질량지수, 총콜레스테롤, 저밀도콜레스테롤, 수축기혈압, 이완기혈압을 함께 통제한 후에는 유의한 차이가 없었다.

청소년들이 인터넷을 사용하면서 추구하는 심리내적 욕구에 관한 현상학적 연구

정여주(Chung Yeo ju),이아라(Lee A ra),고영삼(Koh Young sam),김한별(Kim Han byul),전아영(Jeon Ah young) 한국열린교육학회 2017 열린교육연구 Vol.25 No.3

본 연구의 목적은 청소년들이 인터넷을 사용하면서 추구하는 심리내적 욕구가 무엇인지 밝히고 그 의 미를 심층적으로 이해하는 데 있다. 이를 위해 9명의 청소년을 대상으로 심층면담을 실시하였으며, 수집 된 자료는 Giorgi의 현상학적 연구방법에 따라 분석하였다. 원자료에서 85개의 중심의미를 추출한 후 다 시 22개의 드러난 주제로 하위범주를 구성하였고, 이를 지속적인 비교와 현상학적인 아이디어로 7개의 본 질적 주제를 도출해내었다. 분석 결과 드러난 본질적 주제는‘관계 형성의 욕구’,‘소속과 인정의 욕 구’,‘자기 확인의 욕구’,‘정보 습득의 욕구’,‘스트레스 해소와 즐거움의 욕구’,‘표현의 욕구’,‘진로 개발의 욕구’이다. 첫째, 관계 형성의 욕구란 현실관계를 유지 ․심화시키기 위해 인터넷을 사용하거나 가상 세계의 익명의 대상과 관계를 형성하는 이점을 취하려는 것이다. 둘째, 소속과 인정의 욕구는 가상세계 속 소모임에 속해 외롭지 않으려는 것과 그들의 칭찬과 관심을 추구하는 것이다. 셋째, 자기 확인의 욕구는 새로운 자기의 성격을 발견하고 성공적인 자기모습을 확인하려는 것이다. 넷째, 정보습득의 욕구는 실생 활, 게임, 진로 및 학업, 시사 영역의 정보를 얻고자 하는 것이다. 다섯째, 스트레스 해소와 즐거움의 욕구 는 인터넷을 하면서 쾌감을 느끼고 현실 속 스트레스를 잊고자 하는 것이다. 여섯째, 표현의 욕구는 긍정 적, 부정적 감정과 생각 및 의견을 표현하려는 것이다. 일곱째, 진로개발의 욕구는 자신의 흥미를 발견하 고 진로분야를 탐색하고 준비해나가기 위해 인터넷을 사용하는 것이다. 이와 같은 본 연구의 결과를 바탕 으로 논의와 연구의 시사점을 제시하였다. The purpose of this study was to examine intrapsychic desire of youth to pursue using the Internet and understand the meaning in depth. For this purpose 9 youths’ experiences were analyzed via Giorgi’s phenomenological method. In addition, 85 factors were drawn from raw data, and 22 sub-categories and 7 essential topics were derived by persistent comparison and phenomenological ideas. The 7 essential topics consist of ‘Desire for relationship’, ‘Desire for affiliation and recognition’, ‘Desire for self- identification’, ‘Desire for information gathering’, ‘Desire for stress reduction and fun’, ‘Desire for expression’, and ‘Desire for career development’. The meanings for each topic are explained as follows. First, desire for relationship is using the Internet for maintaining and intensifying real relationships or taking advantages of relationships in the virtual world. Second, desire for affiliation and recognition means belonging to a small group in the virtual world and pursuing praise and attention from them. Third, desire for self-identification means finding one’s new personality and identifying competent self. Forth, desire for information gathering is to gain knowledge of real life, game, career, study, and news. Sixth, desire for expression is to show positive and negative feelings, opinions and thought. Seventh, desire for career development is to use the Internet for finding their interest and preparing their career area. Based on these results, discussion and suggestions were mentioned.

우리나라 노인장기요양보험에서 65세 미만자 노인성질병의 재검토 및 범위 확대의 필요성

윤종률 ( Jong Lull Yoon ),노용균 ( Yong Kyun Roh ),권석범 ( Suk-beom Kwon ),전아영 ( Ah Young Jeon ),김복남 ( Bok-nam Kim ),윤태형 ( Tae-hyung Yoon ),김도훈 ( Do-hoon Kim ),나영균 ( Young-kyun Na ) 한국장기요양학회 2015 장기요양연구 Vol.2 No.2

장기요양보험 서비스가 형평성있게 보장되기 위해서는 연령 또는 성별, 질병 등과 무관하게 독립적인 일상생활이 어려운 만성적 장애가 있는 대상자에 대하여 의료 및 요양의 보건복지서비스를 통합 제공할 수 있어야 한다. 그러나 우리나라의 노인장기요양보험제도에서는 65세 미만 비노인집단에 대해서는 ‘노인성질병’으로 규정된 몇 가지 질환자에 대해서만 요양급여 신청이 가능하도록 제한조치를 두고 있으며, 노인장기요양보험제도 도입이후 6년여의 시행과정에서 이러한 ‘노인성질병’ 규정에 대한 개념정의가 이루어지지 못하고, 노인성질병의 범위와 종류에 대해서도 적정성 검토가 이루어지지 못하였다. 본 연구는 현행 노인장기요양보험제도의 노인성질병 규정에 대한 개념정의를 제시하고 그에 따른 적절한 노인성질병의 범위를 재선정하고자 시행되었다. 다양한 문헌과 외국의 사례를 검토하고, 노인관련 전문학회의 합의과정을 거친 후 노인성질병의 개념정의는 “65세 미만에서 ‘병적 노화현상’에 의해 발생하며, 통상적 의료행위로 회복되지 않고 6개월 이상 지속적으로 일상생활 기능에 장애를 유발한 질병”이라고 제안되었다. 또한 그 간의 장기요양보험 등급신청자들과 요양병원 장기입원자들의 질병 유병률 순위와 각 질병에 따른 요양욕구 발생 위험도를 고려하면, 신체의 마비, 근위축성 측삭경화증, 계통성위축, 다발성경화증, 말기암, 근육장애, 뇌병증 등의 26개 주요 질병이 향후 노인성질병에 추가될 후보군으로 선정되었다. 이러한 연구결과는 향후 65세 미만 비노인 집단에 대한 장기요양보험 서비스 대상자 확대를 위한 주요 근거자료로 활용될 수 있고, 정책적 상황에 따라 대상자의 점진적 확대를 계획하는 경우에 제시된 질병 목록의 우선순위를 통하여 장기요양서비스 자원(인프라)의 확보상황에 맞게 효율적으로 결정할 수 있는 근거자료로 활용 가능할 것으로 생각된다. Long-term care services should be provided comprehensively to all persons who have care-needs by functional impairment regardless of age, sex or diseases. Korean LTC services are provided, however, to older persons only in priciple. For persons under the age of 65, they can access to LTC services in case of some age-related disorders specified as dementia, cerebrovascular diseases, parkinsonism by law. This legislation would act as a barrier to approach to the LTC services equity for functionally dependent mid-life persons definitely. Authors have tried to clarify the “age-related disorders” of persons under 65 in Korean LTC, and to add more diseases in this list to expand LTC services recipients stepwisely. From the process of consensus meeting with geriatrics-related academic societies, we have defined the ‘age-related disorders’ permitting access to LTC services for the persons under 65 in Korean LTC as “disorders developed by premature pathologic aging process, and resulted in functional impairment which is not improved by conventional treatment”. By extensive review of data from National Health Insurance Services, we can select diseases which is highly inducing LTC needs under age 65. At least 26 diseases are listed in prevalence order, like as paraplegia or quadriplegia, spinal muscular atrophies(including amyotrophic lateral sclerosis), systemic atrophies, multiple sclerosis, terminal cases of cancers, muscular dystrophies, encephalopathies, etc. This results can be used as relevant data for the strategy to expand beneficiaries of Korean LTC services.

3축 가속도 센서 기반의 무선 진동 측정 시스템

김철한 ( Cheol Han Kim ),김윤진 ( Yun Jin Kim ),전계록 ( Gye Rok Jeon ),노정훈 ( Jung Hoon Ro ),유주연 ( Ju Yeon Yoo ),박근철 ( Geun Chul Park ),전아영 ( Ah Young Jeon ) 한국센서학회 2011 센서학회지 Vol.20 No.2

In this study, a compact wireless vibration measurement system was developed using a 3-axial accelerometer in order to evaluate the vibration stimulation system. A low power microprocessor chip integrated with 2.4 GHz RF transceiver was used for the wireless data communication. To evaluate the system, the frequencies and accelerations from the vibration stimulation system were measured using an LVDT sensor and a vibration measurement system. The average frequency difference by the measurement system was less than 0.1 Hz, and the standard deviation of frequencies estimated by the LVDT sensor and the accelerometer was below 0.08 Hz. The developed system was applied to access a vibration stimulation system for the future study. The average acceleration difference of the central and peripheral point of the stimulation system was less than 0.0005 g(1 g=9.8 m/s2), and the standard deviation of the acceleration was below 0.004 g, which shows the usefulness of the wireless vibration measurement system.

주기별 맥동파형의 절흔점 위치변화 특성을 이용한 혈압 추정

백승완 ( Seong Wan Baik ),박성민 ( Sung Min Park ),손정만 ( Jung Man Shon ),박근철 ( Geun Chul Park ),이상훈 ( Sang Hoon Lee ),장우영 ( Woo Young Jang ),전아영 ( Ah Young Jeon ),전계록 ( Gyerok Jeon ) 한국센서학회 2013 센서학회지 Vol.22 No.2

In the study, novel blood pressure estimation method was proposed to improve the accuracy of oscillometric method. The proposed algorithm estimated the blood pressure by comparing and analyzing the point variation aspect of dicrotic notch on pulsating waveform during each cardiac cycle. The waveforms of each cardiac cycle were extracted by maximum points. The extracted pulsating waveforms were applied by re-sampling, end-matching, and normalization. The systolic and diastolic blood pressures were estimated by point variation aspect of dicrotic notch. The blood pressures, which were estimated from proposed algorithm, were compared and analyzed by blood pressures from oscillometric methods and auscultation. The systolic blood pressure from oscillometric methods were +0.88 mmHg more than proposed algorithm, and 1.875 less than the diastolic blood pressures from proposed algorithm. The systolic and diastolic blood pressures from auscultation were 2.89 mmHg and 3.44 mmHg less than the blood pressures from proposed algorithm. As the errors between blood pressures from proposed algorithm, oscillometric method and auscultation were less than 5 mmHg, the proposed algorithm was effective.