This study tried to focus on nontraditional job that has not been studied in terms of the subjects associated with MSDs(Musculoskeletal Disorders). Specifically, dental procedure was the job to be analyzed in this study. An alternative method as well as a traditional method for viewing teeth while performing simulated dental procedures. Four graduated students did both methods(direct view and indirect view) as the subjects in this study. The method based on indirect view used a video camera and monitor to view the teeth. The experiment was conducted five times for each subject. The major findings in this study were as follows; 1) Job speed was increased with the repetitions for both methods, 2) Difference of Neck flexion between direct and indirect methods was statistically siginificant(Neck flexion for indirect method was dramatically decreased), 3) Difference of job speed between direct and indirect methods was statistically significant(Job speed for direct method was faster than that of indirect method), 4) Difference of error rate between direct and indirect methods was statistically significant(error rate for direct method was lower than that of indirect method), 5) Even though indirect method did not provide better performance in terms of job speed and error rate yet, it seemed to need a trade-off between two methods in the future since indirect method provided better working postures than that of direct method.

This large- scale corpus study examined the gender differences in the use of tag questions in terrns of three different social variables: age, education and private/public situations. Seven hundred and fifty- three tag questions were extracted from the British component of the 1ntemational Corpus of English (ICE -GB), where social variables were parsed and tagged. Overall, women used a slightly higher number of tag Questions: Out of the weighted 5E() tag Questions, men used 'l37 tag Questions (43.1%) and women used 313 tag questions (56.9%). Among men, the number of tag questions increased with age while the number of tag questions decreased with age among women. The women in the 18-25 and 26-45 age brackets used more tag Questions than the men in the same age brackets. But the women older than 45 used fewer tag Questions than the men older than 45. Women with a secondary education used more tag Questions than men with the same education. But both women and men with a tertiary education had about the same frequency of use of tag Questions. 1n the private situations women used more tag Questions than men while in the public situations men used more tag Questions than women

본 연구의 목적은 높이맵 기반의 액체 시뮬레이션을 이용하여 인간 친화적으로 표현하기 위한 감성 컨텐츠 제작 에 있다. 액체를 인간 친화적으로 표현하는 기존 연구들은 액체 표면을 표현하는데 몇 가지 문제점이 있다. 이러한 문 제를 해결하기 위해 본 연구는 액체의 광학적 특징을 이용한 새로운 액체의 카툰 렌더링 기법을 제안한다. 본 연구 에서 제안하는 액체의 카툰 렌더링은 반사와 굴절을 독립적으로 표현한 채색 단계와 액체의 경계선과 파형선을 표현 하는 선화 단계를 거쳐 표현된다. 그 결과 인간 친화적으로 표현된 액체의 표면을 실시간으로 감성 컨텐츠로 제작할 수 있다.

Mesenchymal stem cells (MSCs) have the multipotent capacity and this potential can be applied for obtaining valuable cell types which can use for cell therapy on various regenerative diseases. However, insufficient availability of cellular source is the major problem in cell therapy field using adult stem cell sources. Recently, human embryonic stem cells (hESCs) have been highlighted to overcome a limitation of adult cellular sources because they retain unlimited proliferation capacity and pluripotency. To use of hESCs in cell therapy, above all, animal pathogen free culture system and purification of a specific target cell population to avoid teratoma formation are required. In this study, we describe the differentiation of a mesenchymal stem cell-like cells population from feeder-free cultured hESCs(hESC-MSCs) using direct induction system. hESC-MSCs revealed characteristics similar to MSCs derived from bone marrow, and undifferentiated cell markers were extremely low in hESC-MSCs in RT- PCR, immunostaining and FACS analyses. Thus, this study proffer a basis of effective generation of specialized human mesenchymal stem cell types which can use for further clinical applications, from xenofree cultured hESCs using direct induction system.

Cycling that transform human energy into mechanical energy is one of the man-machine systems out of sports fields. Benchmarking means "improving ourselves by learning from others', therefore benchmarking toward dominant cyclist is necessary on field. The goals of this study were to provide important factors on multi-disciplines (kinematics, physiology, power, psychology) for a tailored-training program that is suitable to individual characteristics. Two cyclists participated in this study and gave consent to the experimental procedure. One was dominant cyclist (years: 21 yrs, height: 177 cm, mass: 70 kg), and the other was non-dominant cyclist (years: 21, height: 176, mass: 70). Kinematic data were recorded using six infrared cameras (240Hz) and QTM (software). Physiological data (VO2max, AT) were acquired according to graded exercising test with cycle ergometer and power with Wingate test used by Bar-Or et. al (1977) and to evaluate muscle function with Cybex. Psychological data were collected with competitive state anxiety inventory (CSAI-2) that was devised by Martens et. al (1990) and athletes' self-management questionnaire (ASMQ) of Huh (2003). It appears that the dominant's CV of ankle joint angle was higher than non-dominant's CV and dominant's pedaling pattern was consistent in biomechanics domain, which the dominant's values for all factors ware higher than non-dominant's values in physical, and physiological domain, and their values between cognitive anxiety and somatic anxiety were contrary to each other in psychology. Further research on multi-disciplines may lead to the development of tailored-optimal training programs applicable with key factors to enhance athletic performance by means of research including athlete, coach and parents.

The unsafe act and unsafe condition is due to human error that experience 80% of safety one of the most important issues to reduce industrial accidents as a whole, is how to reduce the accident rate by the human error Therefore, this paper describes the d

The objective of this study is to develop 3D anthropometrical data acquisition method of human back surface and to recognise and extract its morphological characteristics. This technique is very useful in describing the sitter's back contour and the interaction between the sitter's back and the seat. The back surfaces of subjects in sitting posture are measured by using martine-type anthropometer and sliding gauge. These basic anthropometrical data are reconstructed into 3D image.

Cycling that transform human energy into mechanical energy is one of the man-machine systems out of sports fields. Benchmarking means " improving ourselves by learning from others ", therefore benchmarking toward dominant cyclist is necessary on field. the goals of this study were to provide important factors on multi-disciplines (kinematics, physiology, power, psychology) for a tailored-training program that is suitable to individual characteristics. Two cyclist participated in this study and gave consent to the experimental procedure. one was dominant cyclist (years:21 yrs, height:177 cm, mass:70 kg), and the other was non-dominant cyclist(years:21, height:176, mass:70). Kinematic data were recorded using six infrared cameras (240Hz) and QTM (software). Physiological data (VO2max, AT) were acquired according to graded exercising test with cycle ergometer and power with Wingate test used by Bar-Or et. al ( 1977) and to evaluate muscle function with Cybex. Psychological data were collected with competitive state anxiety inventory (CSAI-2) that were devised by Martens et. al (1990) and with athletes' self-management questionnaire (ASMQ) of Huh (2003). It appears that the dominant's CV(coefficient of variability) was higher than non-dominant's CV in Sports Biomechanics domain, that the dominant's values for all factors ware higher than non-dominant's values in physical, and physiological domain, and their values between cognitive anxiety and somatic anxiety were contrary to each other in psychology. Further research on multi-disciplines may lead to the development of tailored-optimal training programs applicable with key factors to enhance athletic performance by means of research including athlete, coach and parents.

This study was conducted to examine the effects of human follicular fluid and gonadotropin (FSH+HCG+rhEGF) on in vitro maturation, fertilization and development of human immature oocytes. Cumulus-oocyte complexes (COCs) were collected following for in vitro fertilization and embryo transfer (IVF-ET) cycles of the patients. At the time of oocytes collection, oocytes were classified into MII, MI and GV in accordance with their appearance (MII: Fully mature oocyte at metaphase II of meiosis; MI: Nearly mature oocytes at metaphase I of meiosis; GV: Immature oocytes at prophase I of meiosis). After controlled ovarian stimulation using gonadotropin(FSH) and human chorionic gonadotropin (HCG) in 70 ICSI cycles, 158 MI to MII matured oocytes were intracytoplasmic sperm injection (ICSI) h after in vitro culture and 553 MII oocytes were ICSI after denudation. The aspirated MI and GV oocytes were cultured in culture medium containing 10% (v/v) serum protein substitute (SPS), 10% (v/v) human follicular fluid (hFF) and 10% (v/v) serum protein substitute (SPS)+1 IU/ml FSH+10 IU/ml HCG+10 ng/ml recombinant human epidermal growth factor (rhEGF). The maturation rate of immature oocytes was similar among the three group. When maturation medium was supplemented with 10% SPS, 10% hFF or gonadotropins, the fertilization rate of in vitro matured oocytes was higher in 10% SPS (80.0%), but there was no statistical significance (78.2%; hFF, 76.9%; gonadotropin, p>0.05). The development rate of human embryos developed to cells were not significant difference in the medium containing SPS, hFF and gonadotropins (65.6%, 65.9% and 66.7%). The results of these study suggest that human follicular fluid and gonadotropins supplemented in the culture medium was not effected on the in vitro maturation, fertilization and development of human immature oocytes.

Since the computer technology has been drastically developed and broadly employed for the design of human machine system, human system interface was somehow digitalized. Actually the operator’'s working environment employing the digital devices are not be

Thepurposeofthisstudyistwo folds:one is to present different perspectives between Koreans and foreignersinconnectingaspecificwordintermsofassociatingantonyms; the other is to suggestsome effective adoptions ofthese findings in teachingKoreanvocabulariestoforeignlearnersofKorean.Itisoftenthe casethatpeopletendtothinkofaspecificwordtogetherwithitsrelated antonym.The relationship between a word and its antonym is closely associated with the vocabulary network in the human brain.Therefore using thisassociationinteachingKoreanhelpslearnerstorememberthe vocabularieseasier.Howeverthesemanticfieldofeachwordisinevitably different depending on the culturalbackground of the learners.This research reveals thatKoreans and foreigners often think ofa different antonym ofthesameword.Althoughtheassociationprocessseemstobe similarbetweenKoreansandforeigners,thereseemstobeadiscrepancy in theextentofabstraction ofantonyms.In otherwords,thedifference arisesnotinthetypeofantonyms,butintheextentoftheabstractionof eachword.Basedonthis,Koreanteachershavetobeespeciallycautious inteaching antonymsby dealing with gradableantonymsanddirectional antonyms in a differentmanner.Itshould be also noted thatteaching Korean vocabulariescan beaccomplishedmoreeffectively byrecognizing andrespectingdifferentculturalbackgroundsofthelearners.

당뇨망막병증은 서구에서 성인들의 실명을 일으키는 원인이다. 당뇨병이 있을 때 고혈당증은 여러 세포 형태에서 세포자연사를 유도하지만 그 기작은 명확하게 밝혀지지 않았다. 본 연구의 목적은 인간망막 내피세포에서 고혈당 포도당이 세포자연사에 미치는 영향에 대하여 알아보았다. 망막 내피세포는 5, 25, 50 mM 포도당이 포함된 IMDM배지에서 37℃, 5% CO2조정된 항온기에서 24, 36, 48시간 동안 배양하였다. 여러 농도의