수직점프 수행시 두 발의 동시· 비동시 스텝에 따른 운동학적 특성 분석

윤희중,이연종,이경식,유실,정남주 韓國體育大學校附屬 體育科學硏究所 1997 韓國體育大學校附屬 體育科學硏究所論文集 Vol.16 No.1

The purpose of this study is to quantify the differences between synchronous and asynchronous step during vertical jump. The subjects of this study were 3 males college students. And 2 S-VHS vedio cameras were used for the data collection. The Direct Linear Transformation (DLT) method was employed to obtain 3-D position coordinates of 21 landmarks. And the following conclusions were drawn ; 1. Synchronous step was faster in approach velocity than asynchronous step. 2. Asynchronous step was smaller in knee flexion angle than synchronous step. 3. Synchronous step was faster in angular velocity at knee flexion than asynchronous step and asynchronous step was faster in angular velocity at knee extention. 4. Asynchronous step was higher in take-off height and loss height than synchronous step. 5. Synchronous step was higher in flight height top height and reach height than asynchronous step.

임신 40주와 출산 후 6주에 있는 20대 임산부 보행의 역학적 특성 비교

윤희중,문동안,정남주,금명숙,이경식,유실,김영란,한윤수 한국운동역학회 2000 한국운동역학회지 Vol.10 No.1

본 연구는 임신 40주와 출산후 6주간에 있는 임산부의 보행 동작의 특정을 규명함으로써 이와 관련된 연구자들에게 기초자료를 제공하고자 실시하였다. 이를 위해 임신 4주에 있는 임산부를 대상으로 1차 실험을 실시하였으며 동일한 대상자를 출산후 6주에 2차로 실험하여 자료를 수집하였다. 디지타이징 시 오차를 최소화하고 인체관절점의 분별을 위해 21개의 반사마커를 부착하였다. 10m의 보행주로를 걷는 동안 두 대의 비디오카메라를 이용하여60Hz로 자료를 수집하였으며 동시에 100Hz 지면반력자료를 수집하였다.수집되어진 자료는 DLT 방법을 사용하여 분석하였으며 이의 분석에 Kwon3d 프로그램을 활용하였다. 분석결과 다음과 같은 결론을 얻었다. 1. 임신 40주와 출산 후 6주의 보행 시 지지시간과 스윙시간의 비율이 다르게 나타났으며 보폭과 보간, 활보장은 임신 40주에서 더 큰 값을 보였다. 상체 전경각 역시 임신 40주에서 더 큰 값을 보였다. 힙관절, 무릎관절, 발목관절각도는 S1이 출산후 6주에서 큰 값을 보인반면 S2는 출산전후에 큰 변화를 보이지 않다. 2. 상하지면반력의 경우 FP1과 FP2는 임신 40주보다는 출산 6주에서 큰값을 보였지만 FP3는 임신 40주에서 보다 큰값을 보이고 있었다. 전후지면반력의 경우 출산전과 후 모두 Fy2에서 보다 큰 값을 보이고 있었다. This Study was to investigate kinematical characteristic comparison of the gait pregnant 40weeks and after delivery 6weeks 20´s women and provide the basic data. To accomplish this study, in the first, carry out an experiment with the pregnant women in the pregnant 40weeks on the videotape, and than the second, make an experiment with the kinematic data. Kinematic data were filtered with a low-pass, fourth-order Butterworth filter with an effective cut off frequency of 6Hz. The conclusions were drawn as follows; 1. Floor contact Periods(stance and swing rate) were differed from before and after the delivery and a pregnant 40 weeks was greater than after delivery 6 weeks in the step, width, stride. Also, a pregnant 40 weeks was greater than after delivery 6 weeks in the front angular. And the other angular components were represented similar pattern. 2. In the vertical load, delivery 6 weeks was grater than a pregnant 40 weeks in the FP1(first peak) and FP2(valley). And FP3(second peak)was represent that a pregnant 40 weeks was greater than delivery 6 weeks. Also, in the horizontal shear, Fy2(progressional force)was greater than Fy1(breaking force) about time of the delivery.

대학생의 상담에 대한 태도

김범선,전윤경,전진실 西江大學校 學生生活相談硏究所 2008 人間理解 Vol.29 No.-

본 연구는 성별, 연령 등의 인구학적 변인과 이전 상담 경험여부가 상담에 대한 태도에 어떠한 영향을 미치는 가를 알아보기 위해 실시되었다. 이를 위해 서울시내 S 대학에 재학 중인 528명의 학생들에게 상담에 대한 태도와 이전 상담 경험, 그리고 인구학적 특성들을 알아보는 설문지에 응답하게 한 후 그 결과를 통계적으로 분석하였다. 상담에 대한 태도는 Fisher 와 Turner(1975)의 상담태도에 관한 질문지로 측정되었다. 그 결과, 인구학적 변인 중 성별, 학년, 소속 학과, 재수 여부, 종교, 그리고 이전 상담 경험이 상담에 대한 태도에 영향을 미치는 것으로 나타났다. 즉, 여성이 남성에 비해, 천주교 집단이 다른 종교 집단에 비해 전문가에 대한 신뢰와 상담 욕구 면에서 유의미하게 높게 나타났고, 4학년 집단이 1학년에 비해, 문학부가 다른 학부에 비해 전문가에 대한 신뢰의 측면에서 유의미하게 높은 점수를 보였다. 재수를 하지 않은 집단이 삼수이상 집단에 비해 오점수용에서 더 유연한 것으로 나타났으며, 이전에 상담을 해 본 사람일수록 상담에 대한 태도도 더 긍정적이고, 상담전문가를 더 신뢰하며, 오점 수용에 유연하고, 상담 욕구도 높은 것을 알 수 있었다. 마지막으로 이를 통해 얻을 수 있는 논의점과 본 연구의 제한점, 후속 연구를 위한 제안점을 기술하였다. This study investigated college students' attitude toward counseling according to gender, age, and other demographic variables. Research participants were 528 S college students in Seoul. They filled out the Attitude Toward Seeking Professional Help Scale(Fisher & Turner, 1975) and demographic guestionnaire. To analyze data, correlation analysis and ANOVA were conducted. As results, gender, grade, major failure in previous college entrance exam, religion and previous counseling experience had significant influence on attitude toward counseling. Results indicated that women and catholic groups showed more positive attitude in Confidence and Need of seeking attitude toward counseling than other groups. The college seniors and the departs of literature groups showed more positive tendency in Confidence of seeking attitude toward counseling than others. Students who had not repeated a college entrance exam had more flexible attitude in Stigma. Students with previous counseling experience showed more positive tendency in Need, Stigma, Confidence and the whole attitude toward counseling. Discussions and limitations on this study were described.

Comparing Window Frames in the Traditional Space of Korea, China and Japan

Yoon Sil Heo,Kyung Ran Choi,Lee Min Kyung 한국콘텐츠학회 2009 ICCC International Digital Design Invitation Exhib Vol.2009 No.12

The purpose of this study is to identify elements of cultural differences in the window frames by comparing and analyzing features and meanings of the window frames in different cultures. By comparing the features of window frames in Korea, China and Japan, we were able to find out similarities and differences among those windows. This means that the three countries have had an influence on cultures and interacted one another regarding window designs in the long history, but they still have shown distinctive features of each one's own culture. We also found out that the window frames are deeply connected with their housing cultures.

커피전문점의 선택속성이 재방문의도에 미치는 영향연구

윤효실(Yoon, Hyo-sil),오서경(Oh, Seo-kyung),윤혜현(Yoon, Hye-hyun) 한국호텔외식관광경영학회 2016 호텔경영학연구 Vol.25 No.5

Comparative Analysis of Design on Oriental Tea Culture

Kyung Ran Choi,Tae Sun Kim,Yoon Sil Heo 한국콘텐츠학회 2008 ICCC International Digital Design Invitation Exhib Vol.2008 No.12

Current status of automatic translation service by artificial intelligence specialized in Korean astronomical classics

Yoon Kyung Seo,Sang Hyuk Kim,Young Sook Ahn,Go-Eun Choi,Young Sil Choi,Hangi Baik,Bo Min Sun,Hyun Jin Kim,Byung Sook Choi,Sahng Woon Lee,Raejin Park 한국천문학회 2021 天文學會報 Vol.46 No.2

Rapid identification and preparative isolation of antioxidant components in licorice

Sil Lee, Yeon,Ha Kim, Seon,Kyu Kim, Jin,Shin, Hyun-Kyung,Kang, Young-Hee,Yoon Park, Jung Han,Lim, Soon Sung WILEY-VCH Verlag 2010 Journal of Separation Science Vol.33 No.4

<P>This study employed the online HPLC-2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonate radical cation (ABTS<SUP>+</SUP><SUP>·</SUP>) bioassay to rapidly determine antioxidant compounds occurring in the licorice extract of Glycyrrhiza uralensis. The negative peaks of the ABTS<SUP>+·</SUP> radical scavenging detection system, which indicated the presence of antioxidant activity, were monitored by measuring the decrease in absorbance at 734 nm. The ABTS<SUP>+</SUP>-based antioxidant activity profile showed that three peaks exhibited antioxidant activity, and then the high-speed counter-current chromatography technique of preparative scale was successfully applied to separate the three peaks I-III in one step from the licorice extract. The high-speed counter-current chromatography was performed using a two-phase solvent system composed of n-hexane–ethyl acetate–methanol–water (6.5:5.5:6:4, v/v). Yields of the three peaks, dehydroglyasperin C (I, 95.1% purity), dehydroglyasperin D (II, 96.2% purity), and isoangustone A (III, 99.5% purity), obtained were 10.33, 10.43, and 6.7% respectively. Chemical structures of the purified dehydroglyasperin C (I), dehydroglyasperin D (II), and isoangustone A (III) were identified by ESI-MS and <SUP>1</SUP>H- and <SUP>13</SUP>C-NMR analysis.</P>

Docetaxel Monotherapy as Second-Line Treatment for Pretreated Advanced Non-Small Cell Lung Cancer Patients

( Yoon Ho Ko ),( Myung Ah Lee ),( Yeong Seon Hong ),( Kyung Shik Lee ),( Hyun Jin Park ),( Ie Ryung Yoo ),( Yeon Sil Kim ),( Young Kyoon Kim ),( Keon Hyun Jo ),( Young Pil Wang ),( Kyo Young Lee ),( J 대한내과학회 2007 The Korean Journal of Internal Medicine Vol.22 No.3

Background: Second-line chemotherapy offers advanced non-small cell lung cancer (NSCLC) patients a small, but significant increase in survival. Docetaxel is usually administered as a 3-week schedule, yet there is significant toxicity with this therapy. Therefore, a weekly schedule has been explored in several previous trials. In this retrospective study, we compared the efficacy and safety of a weekly schedule and a 3-week schedule of docetaxel monotherapy in a second-line setting. Methods: Docetaxel was administered as 75 mg/m2 on day 1 every 3 weeks or as 37.5 mg/m2 on day 1 and 8 every 3 weeks until disease progression or severe toxicity developed. Results: From October 2003 to March 2006, a total of 37 patients received docetaxel monotherapy and 36 patients could be evaluated. A total of 135 cycles were administered and then evaluated. The median overall survival was 13.3 months (95% confidence interval: 6.3~20.3) for the weekly schedule and 10.7 months (95% confidence interval: 8.3~13.0) for the 3-week schedule (p=0.41). The median time to progression was 3.0 months (95% confidence interval: 1. 9~4.0) and 2.8 months (95% confidence interval: 1.0~4.6), respectively (p=0.41). The response rate was 16.7% for the weekly schedule and 21.1% for the 3-week schedule. The major form of hematologic toxicity was grade 3-4 neutropenia (3-week: 38.9%, weekly: 9.5%). The non-hematologic toxicities were similar between the two schedules. There were no treatment-related deaths. Conclusions: A docetaxel weekly schedule was very tolerable and it had comparable activity to that of the 3-week docetaxel schedule. Considering the efficacy and tolerability, a docetaxel weekly schedule can be an alternative schedule for the standard treatment of NSCLC in a second-line setting.

Facilitation of AMPA receptor-mediated steady-state current by extrasynaptic NMDA receptors in supraoptic magnocellular neurosecretory cells

Yoon Hyoung Pai,Chae Seong Lim,Kyung-Ah Park,Hyun Sil Cho,Gyu-Seung Lee,Yong Sup Shin,Hyun-Woo Kim,Byeong Hwa Jeon,Seok Hwa Yoon,Jin Bong Park 대한생리학회-대한약리학회 2016 The Korean Journal of Physiology & Pharmacology Vol.20 No.4

In addition to classical synaptic transmission, information is transmitted between cells via the activation of extrasynaptic receptors that generate persistent tonic current in the brain. While growing evidence supports the presence of tonic NMDA current (I_NMDA) generated by extrasynaptic NMDA receptors (eNMDARs), the functional significance of tonic I_NMDA in various brain regions remains poorly understood. Here, we demonstrate that activation of eNMDARs that generate INMDA facilitates the α-amino-3-hydroxy-5-methylisoxazole-4-proprionate receptor (AMPAR)-mediated steady-state current in supraoptic nucleus (SON) magnocellular neurosecretory cells (MNCs). In low-Mg²⁺ artificial cerebrospinal fluid (aCSF), glutamate induced an inward shift in I_holding (I_GLU) at a holding potential (V_holding) of –70 mV which was partly blocked by an AMPAR antagonist, NBQX. NBQX-sensitive IGLU was observed even in normal aCSF at V_holding of –40 mV or –20 mV. IGLU was completely abolished by pretreatment with an NMDAR blocker, AP5, under all tested conditions. AMPA induced a reproducible inward shift in Iholding (I_AMPA) in SON MNCs. Pretreatment with AP5 attenuated I_AMPA amplitudes to ~60% of the control levels in low-Mg ²⁺ aCSF, but not in normal aCSF at V_holding of –70 mV. I_AMPA attenuation by AP5 was also prominent in normal aCSF at depolarized holding potentials. Memantine, an eNMDAR blocker, mimicked the AP5-induced I_AMPA attenuation in SON MNCs. Finally, chronic dehydration did not affect I_AMPA attenuation by AP5 in the neurons. These results suggest that tonic INMDA, mediated by eNMDAR, facilitates AMPAR function, changing the postsynaptic response to its agonists in normal and osmotically challenged SON MNCs.