테니스 스트로크 시 연습과 실제스윙 동작간의 소요시간에 관한 비교 분석

김유신 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

The purpose of this study was to investigate the difference in swing time by phase by analyzing forehand and backhand stroke, expert and amateur, practice and actual swing of tennis and to help learner for efficient motion. The results of the study were as follow: Backswing time of forehand stroke. there were differences between 2 groups and 2 types of swing(1.182±0.174sec for practice swing of amateur. 1.022±0.105sec for actual swing of amateur. 0.882±0.039sec for practice swing of expert, 0.855±0.050sec for actual swing of expert). Forward swing time of forehand stroke, there were differences(0.405±0.036sec for practice swing of amateur, 0.303±0.053sec for actual swing of amateur, 0.435±0.025sec for practice swing of expert. 0.407± 0.024sec for actual swing of expert). Follow through time of forehand stroke. there were differences (0.598±0.036sec for practice swing of amateur. 0.445±0.057sec for actual swing of amateur. 0.418± 0.018sec for practice swing of expert, 0.325±0.018sec for actual swing of expert). Whole swing time of forehand stroke, there were differences(2.025±0.109sec for practice swing of amateur, 1.930± 0.223sec for actual swing of amateur, 1.735±0.056sec for practice swing of expert, 1.586±0.064sec for actual swing of expert). Backswing time of backhand stroke. there were differences between 2 groups and 2 types of swing(1.002±0.060sec for practice swing of amateur, 0.928±0.073sec for actual swing of amateur, 0.807±0.040sec for practice swing of expert. 0.778±0.095sec for actual swing of expert). Forward swing time of backhand stroke, there were differences(0.299±0.037sec for practice swing of amateur. 0.298±0.032sec for actual swing of amateur. 0.392±0.036sec for practice swing of expert. 0.328±0.031sec for actual swing of expert). Follow through time of backhand stroke. there were differences(0.483±0.015sec for practice swing of amateur, 0.378± 0.029sec for actual swing of amateur, 0.338±0.029sec for practice swing of expert, 0.338± 0.022sec for actual swing of expert). Whole swing time of backhand stroke, there were differences (1.778±0.082sec for practice swing of amateur. 1.605±0.083sec for actual swing of amateur, 1.587± 0.077sec for practice swing of expert. 1.445±0.088sec for actual swing of expert).

사과 種自의 發芽와 水分含量과의 關系

鄭三澤,金益弘,김유신,李啓準,申聖鍊 경북대학교 1988 새마을 硏究論叢 Vol.9 No.-

초등학생의 브로카 지수에 의해 분류한 신체특성과 중심고와의 관계

조규권,김유신 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.2

The purpose of this study was to classify and analyze the H.C.G of elementary school students by ages, genders, and Broca's index. And provide the efficient basic data for elite players and sports leaders by adapting the conception of H.C.G at the real educational situation. The subject of this study was 3,000 elementary school students in K area. They were selected by stratified sampling process. The equipment of measure was reaction board(length 2m 10cm. width 1m. thickness 36mm) system. The main variables related with H.C.G. were selected by ages, genders, Broca's index. And SPSS-PC program(ver 10.0) was used for verifying the datas obtained from measurement(p<.05). The conclusions were as follows. 1) H.C.G by Broca's index were from 84.02cm(extreme shorted weight) to 73.30cm(fatness). P.C.G by Broca's index were the highest in fatness(57.20%) and the lowest in extreme shorted weight(56.45%). It was statistically valuable(p<.05). 2) H.C.G by Broca's index and genders were from 83.75cm(extreme shorted weight) to 75.00cm(fatness) in case of male and from 84.29cm(extreme shorted weight) to 72.10cm(fatness) in case of female. P.C.G by Broca's index and genders were the lowest (56.42%-extreme shortes weight) and the highest (57.21%-fatness) in case of male, and the lowest(56.49%-extreme shorted weight) and the highest(57.17%-fatness) in case of female. It was statistically valuable(p<.05). 3) H.C.G by Broca's index and ages were largely high in extreme shorted weight and largely low in fatness, but P.C.G by Broca's index and ages were more higher in fatness. It was statistically valuable(p<.05).

유해화학물질의 계통분석

박성우,박유신,이진훈,유재훈,김유나,오세진,이진숙,김남이,박종신,남금문,노동석 內務部 國立科學搜査硏究所 2002 國立 科學 搜査 硏究所 年報 Vol.34 No.-

유해화학물질의 계통분석

박성우,박유신,이진훈,김남이,김유나,임미애,이상기,유재훈,진광호,신호상,노동석 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-

페놀베타인 유도체합성(XI)

우성주,박예진,황순호,홍유화,김남재,김인종,김신규 慶熙大學校 1996 論文集 Vol.25 No.-

Tetrahydroberberine-13-one was treated with ethylchloroformate to give the C_8-N bond cleaved product 1. On the treatment with Lawesson's reagent (LAS), chloroketone 2 derived from the hydrolysis of 1 afforded the thioketone 3. On the other hand, spirotype-chloroketone 4 was transformed to diaziridine 8 by a reduction, chlorination and aziridine introduction. Also, spirotype-chlorothioketone 6 was obtained from chloroketone 4.

암 병동 간호사의 통증관리에 대한 지식과 태도

공성화,방찌야,서민숙,현신숙,김희정,이미애1,이미애2,유현희,허재경,김은애,박경숙 성인간호학회 2004 성인간호학회지 Vol.16 No.1

Purpose: The purpose of this study is to evaluate the knowledge and attitudes of oncology ward nurses toward cancer pain management and to find ways to improve the educational program for nurses. Method: A total of 209 nurses working at the oncology ward of three hospitals in Seoul and a Gyenggi Province. The survey instrument used was the 32-item scale for evaluating nurses knowledge and attitudes originally developed by McCaffery and Ferrell'(1990). that was by Kim'(1997). Result: In terms of the nurses knowledge of pain management. the result showed that the nurses scored an average of 67.8 out of 100 for phamacokinetics of opioids. 84.8 for classification of analgesics, 60.1 for pain assessment, and 70.7 for drug administration. 18.2% of the nurses hesitate to inject the narcotic agent because of concerns regarding the drug's potential side effects. there was significant difference in the knowledge of pain management according to the general characteristics of pain in terms of the nurses age(p=.001), position (p=.016). years of experiences(p=.002), experience of cancer pain education(p= .001). Conclusion: The also showed that nurses working at cancer ward lack knowledge. It is important to provide intensive education to nurses about cancer pain management.

사회복지조직의 실제채용기준을 반영할 수 있는 채용공고에 대한 탐색적 연구 : 서울·대전지역을 중심으로

이화조,한가영,이옥진,김유신 梨花女子大學校 社會科學大學 社會科學硏究所 2010 사회과학연구논총 Vol.24 No.-

본 연구의 목적은 사회복지조직의 공개 채용공고가 실제채용기준을 얼마나 반영하고 있는지 파악하여 채용공고의 변화가능성을 탐색하기 위함이다. 이러한 목적을 달성하기 위해 2008년 한국사회복지사협회의 채용공고 중 210건의 조직을 표집하여 기초분석을 통해 정보내용을 파악하였고, 서울과 대전의 23개 조직의 기관장을 대상으로 1:1면접을 통해 사례연구를 진행하였다. 분석결과, 실제채용기준은 자원봉사와 실습을 통한 현장경험, 사회복지사 1급 자격증, 지원자와 조직의 비전 일치, 사회복지 마인드, 대인관계 등으로 드러났다. 그러나 이는 채용공고에 제시되지 않거나 질적인 차이를 보였다. The purpose of this study is to understand how an open employment notice has reflected the actual criterions of the recruitment, and to discover a potential for any changes. To achieve this purpose, a systematic random sample of 210 open employment notices was selected from Korea Association of Social Workers in 2008, and a descriptive analysis was conducted. The qualitative research was carried out for the case study with 23 interviewees from social welfare organizations in Seoul and Daejeon. Consequently, the actual criterions of the recruitment included the following elements: social work field practicum and volunteer work, the level one social welfare license, degree of harmony with the vision of the organization, dept of social welfare-oriented mind, and human networks. However, these criterions may not be presented in open employment notices or show that there are qualitative differences between open employment notices and the actual employment criterions.

HIF-1α activation in myeloid cells accelerates dextran sodium sulfate-induced colitis progression in mice

Kim, Young-Eun,Lee, Minji,Gu, Hyejung,Kim, Jeongwoo,Jeong, Seongju,Yeo, Sujin,Lee, You Jeong,Im, Sin-Hyeog,Sung, Young-Chul,Kim, Hak Jae,Weissman, Irving L.,Ahn, G-One The Company of Biologists Ltd 2018 Disease models & mechanisms Vol.11 No.7

<P><B>ABSTRACT</B></P><P>Inflammatory bowel disease (IBD) is a chronic inflammatory disease, in which the intestinal epithelium loses its barrier function. Given the existence of the oxygen gradient in the intestinal epithelium and that inflammation further contributes to the tissue hypoxia, we investigated the role of hypoxia-inducible factor (HIF), a transcription factor activated under hypoxic conditions in myeloid cells, in the progression of IBD. To do this, we utilized myeloid-specific knockout (KO) mice targeting HIF pathways, created by a Cre-loxP system with human MRP8 (hMRP8), an intracellular calcium-binding protein, as the myeloid promoter. By feeding 5% dextran sodium sulfate (DSS) to hMRP8 von Hippel Lindau (<I>Vhl</I>) KO mice, in which HIF-1α and HIF-2α are constitutively activated in myeloid cells, we found that these mice were highly susceptible to DSS-induced colitis, demonstrating greater body weight loss, increased mortality, faster onset of rectal bleeding, shortened colon length, and increased CD11b- or Gr-1-positive myeloid cells in the colon compared with wild-type (WT) mice. These parameters were restored to, if not better than, the WT levels when we examined hMRP8 <I>Hif-1a</I> KO mice upon 5% DSS feeding. hMRP8 <I>Hif-2a</I> KO mice, on the other hand, exhibited a similar degree of DSS-induced colitis to that of WT mice. Lastly, when DSS was given together with azoxymethane to induce tumorigenesis in the colon, we found that hMRP8 <I>Hif-1a</I> KO mice exhibited comparable levels of colorectal tumors to those of WT mice, indicating that HIF-1α in myeloid cells is dispensable for tumorigenesis. Collectively, our results suggest that HIF-1α activation in myeloid cells critically regulates IBD progression.</P>

Effect of Wrist Resistance Training on Motor Control and Strength in Young Males

Kim, You-Sin,Kim, Dae-Hoon Korean Society of Sport Biomechanics 2014 한국운동역학회지 Vol.24 No.3

The aim of the present study was to investigate the effects of 6-week wrist resistance training on wrist torque control. Nineteen subjects were randomly assigned to either the wrist training group (n=9) or the control group (n=10). The training group performed wrist exercises for six directions (flexion, extension, pronation, supination, radial deviation, and ulnar deviation) while the control group did not. Testing for the isometric torque control error, one-repetition maximum (1-RM) strength, and isokinetic maximum torque (angular velocity of $60^{\circ}/s$ wrist movements) were conducted before and after six weeks of resistance training and after every two-week interval of training. The wrist training group showed significant decreases in isometric torque control error in all six directions after the 2-week resistance training, while the control group did not show significant increase or decrease. The training group showed significant increases in the maximum strength in all six directions assessed by 1-RM strength and isokinetic strength tests after the 4-week resistance training, while the control group did not show any statistically significant changes. This study shows that motor control ability significantly improves within the first two weeks of resistance training, while the wrist strength significantly improves within the first four weeks of resistance training in wrist training group compared to the control.