산조인탕이 수면박탈 흰쥐 심장의 혈역학적 기능에 미치는 영향

신유정,김덕곤,Shin, Yu-Jeong,Kim, Deog-Gon 대한한방소아과학회 2010 대한한방소아과학회지 Vol.24 No.3

Objectives: Sanjointang has been clinically used much for treating sleeplessness. However, the effects of Sanjointang in artificial sleep deprivation situations are not known. The purpose of this study is to evaluate the heart rate, left ventricular systolic pressure, left ventricular diastolic pressure, +dp/dt maximum, -dp/dt maximum, and -dp/dt / +dp/dt ratio which are related to the hemodynamic functions of the heart by using sleep-deprived Sparague-Dawley rats, in order to clarify the impact of Sanjointang on hemodynamic functions of the heart of sleep deprived rats. Methods: Eighteen hearts were removed from the male Sparague-Dawley rats weighting about 180g were perfused by the Langendorff technique with modified 37 Krebs-Henseleit's buffer solution at a constant perfusion pressure (60mmHg). They were randomly assigned to one of the following three groups, 1) Normal group (those which did not have sleep deprivation and received normal saline administration), 2) Control group (sleep deprived and normal saline administered), 3) Sample group (sleep deprived and Sanjointang was administered). Control and sample groups rats were deprived 96 hours of sleep by using the modified multiple platform technique. Heart rate, left ventricular systolic pressure, left ventricular diastolic pressure, +dp/dt maximum, -dp/dt maximum, -dp/dt / +dp/dt ratio were evaluated at baseline after the administration of either normal saline or Sanjointang. Results: The heart rate and -dp/dt / +dp/dt ratio was significantly decreased in rats with 96 hours of sleep deprived significantly decreased. The change in the heart rate after administering Sanjointang did not show any significant difference. The left ventricular systolic pressure of the removed heart significantly decreased due to Sanjointang administration, while the left ventricular diastolic pressure significantly increased (p<0.05). The +dp/dt maximum and -dp/dt maximum both significantly decreased in the removed heart after administering Sanjointang. (p<0.05). There was no significant difference observed in the -dp/dt / +dp/dt ratio after administering Sanjointang. Conclusions: According to the results above, sleep deprivation significantly decreases heart rate and -dp/dt / +dp/dt ratio. This is considered as a result of exhaustion due to accumulation of fatigue. Meanwhile, Sanjointang reduced left ventricular systolic pressure and raised left ventricular diastolic pressure, and relieved the contractility and relaxation of the myocardium. Consequently, this reduces the burden of the heart and creates a relatively stabilized heart condition similar to a sleeping condition.

사회적 갈등 인식이 직장 내 갈등에 미치는 영향에 관한 연구

신유정 ( Shin Yu Jeong ),오현규 ( Oh Hyun Gyu ),이숙종 ( Lee Sook Jong ) 단국대학교 분쟁해결연구센터 2018 분쟁해결연구 Vol.16 No.1

본 연구는 한국사회에서 공유되고 있는 다양한 위협요인들이 직장 내 구성원들의 갈등과 어떠한 밀접한 관련이 있는지 살펴보았다. 특히, 본 연구는 직장 내 갈등을 증폭시킬 수 있는 요인으로서 1) 전통적인 관념, 2) 일과 가정의 갈등, 3) 사회를 바라보는 태도, 4) 갈등에 대한 대응을 종합적으로 다루었다. 본 연구가 도출한 8개의 가설을 검증하기 위해서 성균관대학교 SSK 공존·협력 사업단의 ‘한국사회의 갈등과 협력에 대한 인식조사’ 데이터를 활용하여 타당도 및 신뢰도 분석, 상관관계 분석, 위계적 회귀분석을 실시하였다. 이와 같은 실증분석의 결과를 토대로 다양한 이론적·실무적 함의들을 도출하고자 하였으며, 행복한 한국사회 구현을 위한 작은 제언들을 제시하였다. The present study analyzes how various threats perceived in the Korean society affect the conflicts among employees at work. In particular, we focused on the threats (i.e., traditional ideas, conflicts between work and family, attitudes toward society, responses to conflicts) that are commonly mentioned in the Korean society today as possible threats to influence workplace conflicts. To this end, we conducted an empirical analysis using a ‘Survey Data on Perception of Conflict and Cooperation in the Korean Society’. A validity analysis, reliability analysis, correlation analysis, and hierarchical regression analysis were used to verify the eight hypotheses derived from previous research on the topic. The results of the empirical analyses provide various theoretical and practical implications that might contribute to the establishment of a happier workplace life in Korean Society.

MR 댐퍼가 적용된 철도차량 이차현가장치의 H<SUB>∞ </SUB>제어

신유정(Yu Jeong Shin),유원희(Won Hee You),허현무(Hyun Moo Hur),박준혁(Joon Hyuk Park) Korean Society for Precision Engineering 2013 한국정밀공학회지 Vol.30 No.10

분포정수 전자기시스템에서 추출된 전기회로 상수를 이용한 동특성 해석

신유정(Yu-Jeong Shin),한상준(Sang-Joon Han),이세희(Se-Hee Lee),박일환(Il-Han Park) 대한전기학회 2002 대한전기학회 학술대회 논문집 Vol.2002 No.11

모음연장 음성 샘플의 분석 구간에 따른 음향학적 파라미터 비교

신유정(Yu-Jeong Shin) 한국산학기술학회 2017 한국산학기술학회논문지 Vol.18 No.7

본 논문은 임상에서 음성장애 환자의 객관적 음성 분석 대상으로 주로 쓰이는 모음연장 발성이 분석하는 구간에 따라 어떠한 음향학적 차이를 보이는지 밝히고자 하였다. 본 연구에서는 성대결절 환자 17명의 /아/ 모음연장 발성을 시작, 중간, 끝 구간으로 편집하여 MDVP를 통해 각 구간의 jitter, shimmer, NHR을 산출하였고, 비교를 위하여 정상 음성 집단 12명의 음성도 분석하였다. 산출 결과는 R 통계프로그램을 활용하여 Fridman test와 사후 검정을 실시하였다. 음성장애 환자집단은 모음연장 발성의 끝 구간이 중간 구간에 비해 jitter, shimmer, NHR 값이 모두 유의하게 높은 것으로 나타났다. 또한, 발성의 시작 구간은 중간 구간에 비해 세 파라미터 모두에서 높게 산출됐지만 유의한 차이는 없었다. 반면, 정상 집단은 발성의 시작, 중간, 끝 모든 구간에서 유의한 차이가 없었다. 모음연장 발성은 구간에 따라 음향학적 파라미터의 분석 결과가 다르고 발성 끝 구간에서 중간 구간보다 유의하게 음성이 불안정해지는 것으로 나타났다. 이러한 결론은 임상 현장에서 모음연장 발성의 분석 구간 선택과 결과 해석에 유용하게 활용될 수 있을 것이다. This study aimed to investigate the acoustic differences that occur in diverse sections of sustained vowel phonation, which is often used in an objective speech analysis of voice disorder patients. The subjects included 17 voice disorder patients (vocal nodules) and 12 normal individuals without any voice disorder. The participants" sustained vowel phonation of /a/ was divided into onset, middle, and offset, and the jitter, shimmer, and NHR in each section were analyzed using the MDVP(Multi-Dimensional Voice Program). The Friedman test and post hoc analysis were used. In the vocal nodules group, the jitter, shimmer and NHR were significantly higher in the off section of sustained vowel phonation than in the middle section, and there wereno significant differences between the beginning and middle sections. In contrast, in the group of normal individuals, there wereno significant differences between any of thesections. The values of the acoustic parameters according to the section of analysis in the sustained vowel phonation are different and the vocal in the end section is significantly more unstable than that in the middle section. The results of this study willbe useful forselecting the sections to be analyzed in sustained vowel phonation and interpreting the results of the analysis.

가정용 정수기 폐필터 재활용 동향에 관한 연구

신유정 ( Yu Jeong Shin ),김용인 ( Young In Kim ),김정건 ( Jung Gun Kim ),염성일 ( Seong Il Yeom ),이도균 ( Do Gyun Lee ) 한국물환경학회 2021 한국물환경학회지 Vol.37 No.5

The use of water purifiers has been increasing every year due to increased drinking water safety concerns raised by the water pollution accidents occasionally reported. Currently, more than 10 million water purifiers have been distributed in Korea, and the estimation of the purifier sales reaches two million units per year. As a result, the number of used water purifier filters that must be replaced on a regular basis has gradually increased. However, regardless of the considerations for the capacity of used filters remaining, water purifier filters were replaced and collected at regular intervals. The high cost of disposal of the used filters by landfill or incineration were required. Thus, in this study, the current status and trends of recycling technologies for used water purifier filters were reviewed. It is noted that there was insufficient statistical data to understand the current status of the difference between the number of used water filters discarded and the number of those recycled. Most studies on the recycling of old water purifier filters have concentrated on pretreatment and cleaning methods for sediment filters and membrane filters, with the goal of extending the lifespan of used filters. Further, the study suggested future study directions on the recycling of used water purifier filters, which could be useful information on establishing environmental policy to promote the recycling of used filters.

스포츠심리상담사의 전문성 확보를 위한 경험적 고찰

신유정(Shin, Yu-Jeong),정지혜(Chung, Ji-Hye),나정은(Na, Jung-Eun) 한국코칭능력개발원 2021 코칭능력개발지 Vol.23 No.2

철도차량 주행안정성 시험용 축소형 반차체 주행시험기 개발

신유정(Yu-Jeong Shin),유원희(Won-Hee You),허현무(Hyun-Moo Hur),박준혁(Joon-Hyuk Park) Korean Society for Precision Engineering 2011 한국정밀공학회지 Vol.28 No.5

철도차량 이차현가장치 댐퍼 매개변수 변화에 따른 고유모드 특성에 대한 연구

신유정(Yu-Jeong Shin),유원희(Won-Hee You),박준혁(Joon-Hyuk Park),허현무(Hyun-Moo Hur) Korean Society for Precision Engineering 2011 한국정밀공학회지 Vol.28 No.7

교사발달단계에 따른 ‘좋은 유아교사’에 대한 인식 차이 연구:의미연결망 분석을 중심으로

신유정(Shin, Yu-Jeong),임선아(Lim, Sun Ah) 한국교원교육학회 2021 한국교원교육연구 Vol.38 No.3

본 연구는 ‘좋은 유아교사’에 대한 유아교사의 인식이 교사발달단계별로 차이를 보이는지 확인하고자 유치원과 어린이집 근무 경력자 227명을 대상으로 ‘좋은 유아교사’에 대한 개방형 설문지를 배포 및 수집하고, 수집한 자료를 의미연결망 분석방법으로 분석하였다. 연구결과는 다음과 같다. 첫째, 유아교사들은 일반적으로 ‘좋은 유아교사’를 ‘사랑’, ‘눈높이’, ‘상호작용’의 특성을 가진 교사로 인식하고 있는 것으로 나타났다. 둘째, ‘좋은 유아교사’에 대한 유아교사의 인식구조는 경력별로 차이를 보였다. 구체적으로, 1-3년차에서는 초임교사로 교직경험의 부족으로 인한 어려움을 극복하기 위한 인내심’이 중요하다고 인식하는 ‘생존 및 발달단계’적 특성을 보였다. 4-7년차에서는 교직수행의 안정감을 찾게 되며 무엇보다 유아에 대한 ‘이해’를 잘 하는 교사를 좋은 유아교사로 인식하는 것으로 나타났다. 8-10년차에서는 교사의 전문성에 집중하며 ‘실험·행동주의단계’의 특징을 보였다. 11-19년차에서는 ‘평정성·보수성단계’의 특성인 포용적 태도를 보였으며, 20년차 이상에서는 유아를 ‘행복하게 하는’것을 중시하며 유아교육의 지원에 대해 보다 확장된 시야를 보였으며, 특별히 기관-가정의 연계를 중요하게 인식하는 것으로 나타났다. The purpose of this study was to analyze and compare the characteristics and meanings of ‘good early childhood teachers’ recognized by early childhood teachers by career, using a semantic network analysis method. To this end, data were collected through open-question questionnaires, and the frequency and centrality were analyzed utilizing of NetMiner program. The results were as follows. First, the early childhood teachers recognized ‘Good early childhood teacher with the words such as ‘Love , ‘Interaction , ‘Eye level , ‘Development support , and ‘Warm heart . Second. Early childhood teachers perceptions about ‘Good early childhood teacher differed by career. Specifically, in the 1st-3rd years, “patience” was recognized as important to overcome the difficulties caused by a lack of teaching experience as a novice teacher and showed “survival and development phase” characteristics. In the 4th-7th years, it is found that teachers who are good at understanding early children are recognized as good teachers. In the 8th-10th years, it focused on the importance of teachers expertise and showed the characteristics of “experimental and activism” in the phase of teacher development. In the 11th-19th years, the results showed an inclusive attitude, a characteristic of “equality and conservatism,” and in the 20th and above, teachers had more extended views of support for early childhood education, especially the cooperation between institutions and families.