• 제목/요약/키워드: common difference

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볼링투구동작의 운동역학적 분석(II) (Mechanical Analysis of throw motion in Bowling)

  • 이경일
    • 한국운동역학회지
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    • 제12권1호
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    • pp.173-191
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    • 2002
  • The purpose of this study was defined efficient throw motion pattern to obtain the quantitative data and to achieve successful bowling through kinetic - kinematic variables on the throw motion. Subject of group composed of three groups : Higher bowlers who are two representative bowlers with 200 average points and one pro-bowler. Middle bowlers who are three common persons with 170 average points. Lower bowler who are three common persons with 150 average points. Motion analysis on throw motion in three groups respectively has been made through three-dimension cinematography using DLT method. Two high-speed video camera at operating 180 frame per secondary. One-way ANOVA has been used to define variable relations. Analyzed result and conclusion are the following : The displacement of back of the hand must have wider difference of each right-left displacement to increase the spin of the ball. In high bowlers group, difference between the front-rear position of back of the hand in case of success and that in case of failure in follow throw is 0.17m. That is to say, momentum in case of success come to increase greatly, compared with that in case of failure. To increase the spin of the ball, the potential difference should be narrower in follow through. In case of the high bowlers, the velocity of the front-rear direction of the back of the hand has been the fastest both in release and follow through, compared with those in other groups, which has contributed to increasing the spin force of the ball. The orders in the resultant velocity of the back of the hand has shown the this : the finger tip$\rightarrow$the back of the hand$\rightarrow$wrist.These orders made the proximal segment support the distal segment. The distal segment has provided the condition to accelerate the velocity. In case of failure, the suddenly increased velocity has caused the failure in the follow through. Acutely flexing the angle of the back of the hand has contributed to lifting to increase the spin of the ball.

하악 제3대구치가 하악 우각부 골절에 미치는 영향 (THE INFLUENCE OF MANDIBULAR THIRD MOLAR ON MANDIBULAR ANGLE FRACTURE)

  • 조성필;이재훈;김철환
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제28권1호
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    • pp.49-57
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    • 2006
  • Mandibular fractures have higher incidence rate compared to facial bone fractures because of relatively prominent form. Specially, mandibular angle fractures were known as common fracture site because of morphological anatomic structure. The mandibular third molar appears to be the most frequent impacted tooth. The mandibular third molar have influence on mandibular angle fractures according to it's eruption state. Also, the mandibular angle fracture including the third molar may influence on post operative infection whether the third molar is in impacted or extracted state when reduction of fracture site is operated. The presence or absence and degree of impaction of the mandibular third molar were assessed for each patient and were related to the occurrence of the mandibular angle fracture. The extraction or non extraction of the mandibular third molar were related to the occurrence of the post operative infection in the reduction of mandibular angle fractures. In the presence of mandibular third molar, the possibility of mandibular angle fractures were relatively common. When viewing the mandibular third molar at occlusal plane, the possibility of mandibular angle fractures were high in the class C group. The possibility of mandibular angle fractures were high in the mesial angulation and partial impaction. There was a statistically significant difference(P<0.05). In complete erupted mandibular third molar, the possibility of post operative infection occurs quite often, but there was no statistical significant difference(P>0.05). In the extracted or non extracted of mandibular third molar, the post operative infection showed no statistical significant difference(P>0.05). With the results mentioned above, mandibular third molar was significantly more susceptible to mandibular angle fracture. In the reduction of mandibular angle fracture, it was recommended that mandibular third molar should be extracted especially in case of pericoronitis, periodontitis and other infections.

류마티스 관절염환자의 피로에 대한 조사 (Study of Fatigue in Patients with Rheumatoid Arthritis)

  • 박정숙;조혜명
    • 한국간호교육학회지
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    • 제7권2호
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    • pp.245-253
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    • 2001
  • The aim of this study is to describe degree of fatigue and factors related to fatigue in patients with rheumatoid arthritis. The subjects of the study consist of one hundred fifty-eight outpatients with rheumatoid arthritis at three university hospitals in Taegu between July 10 and August 30, 1999. The instrument used in this study was the Multidimensional Assessment of Fatigue developed by Belza et al.(1995) and revised by Jung, Bok Hee. Kim, Myung Ae(1998). Analysis of data was done by using the descriptive statistics, t-test, ANOVA and Duncan with SPSS program. The major findings can be summarized as follows: 1. Degree of fatigue in patient with Rheumatoid Arthritis was shown the average 22.91 out of the total scores 40. Four subscales of fatigue scores are common fatigue degree 6.37, fatigue timing at the last week 5.92, distress due to fatigue 5.40 and degree of daily activity fatigue 5.22. Among the realms of daily activity fatigue, outdoor activity(6.00), sexual life(5.84), doing the household(5.66), shopping(5.61), other exercise except stroll(5.54) were shown the high degree of fatigue and cooking(4.97), a stroll(4.48), recreation(4.35) showed the low degree of fatigue. 2. There were no significant differences on the total degree of fatigue according to demographic variables. But there were some significant differences on the subscale fatigue scores according to demographic variables. Degree of daily activity fatigue according to sex was shown significant difference (t=-2.358, p=.020), and according to education level was shown significant difference(F=3.938, p=.005) and common fatigue degree according to age was shown significant difference(F=2.853, p=.026). Conclusively fatigue is one of difficult problems for patients with rheumatoid arthritis. Therefore it is necessary to develop some nursing intervention for reducing fatigue of rheumatoid arthritis patients.

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고등학교 남자배구선수들의 안정화운동에 대한 경.요부의 통증수준과 근육량, 체지방에 미치는 영향 (The Effect of Stability Exercise For Pain Level of Cervical and Lumbar Region, Muscle Volume and Fat Mass Composition in Body of High School in Man volleyball Player)

  • 원상희;전차선;유응식
    • 대한정형도수물리치료학회지
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    • 제15권1호
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    • pp.41-48
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    • 2009
  • Purpose: to program introduction the effects of stability sling exercise and common exercise of high school in man volleyball player. Methods: This study divided the subjects into a sling-exercise group and a common exercise group to compare after practicing exercises twice per week for 8 weeks (total 16 times). To compare the means of the experimental group and the control group on each variable, the ANOVA for repeated measure was used and if there was any significant difference across the measurement times, post-hoc comparisons were conducted for the difference. Results: The T-tests for group difference according to exercise type on each of the variables showed the results as follows. The pain in cervical region is experimental and control groups pain correlation were not significant(p>0.05). But lumbar region experimental and control groups were significant(p<0.05). Muscle volume was increased during 8weeks in experimental and control groups. But experimental and control groups muscle volume correlation were not significant(p>0.05). Conclusion: Fat Mass composition was decreased during 8 weeks in experimental and control groups. But experimental and control groups mass composition correlation were not significant(p>0.05).

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사회적 혼합아파트 거주자의 혼합유형 선호특성과 사회적 행태 연구 -서울시 은평뉴타운을 대상으로- (Preferences of Mixed Types in a Social Mix Apartment Community and It's Residents' Social Behavior - Focused on the first district in Eunpyeong New Town in Seoul -)

  • 이혜진;이연숙;이수진
    • KIEAE Journal
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    • 제11권5호
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    • pp.69-77
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    • 2011
  • In order to solve social exclusion and segregation phenomenon and to realize social integration, the necessity of social combination and consensus has been presented and existing conception about the public lease apartment confronts a turning point due to the diversification of apartment supply system. With this social background, Eunpyeong New Town Project implemented by Seoul Metropolitan Government is the first example that supplied diverse apartments for social integration. Survey was made upon the residents aged 20 and over and living in combination apartments, lease apartments and common apartments for private ownership in the Enpyeong New Town Apartment Complex in section 1 area, and the survey sheets filled up by the respondents were collected by personal visits or by using specified gathering spots. Summary of study results is as follows: Firstly, regarding the combination method, respondents preferred the irregular combination of lease apartment units and common apartment units in the same apartment building at the top, analyzing by survey groups marked that residents of common apartment with initial ownership responded not to choose combination apartment complex or combination apartment in future. Secondly, the living consciousness with neighbors revealed that respondents were generally satisfied without difference between the residents of lease apartment and common apartment. As the demand and policies for diverse lease apartments are increasing recently, Eunpyeong New Town Project aimed for positive social integration and consensus will be evaluated as model case for social combination apartment in future. And it is necessary to introduce the policies that consider the differences in consciousness and interest of the residents among the lease apartments and common apartments.

폐쇄식 흉관삽관술에 관한 임상적 고찰 (Clinical Study on Closed Thoracotomy)

  • 이종수
    • Journal of Chest Surgery
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    • 제18권4호
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    • pp.822-834
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    • 1985
  • Reexpansion of the lung is the most desirable method of filling the pleural space whether it`s contents may be, and closed thoracotomy connected to a water-seal drainage remains the basic therapeutic modality in the treatment of the problems of the pleural space. We usually used rubber mushroom tubes, size No. from 16 to 34 Fr., and performed closed thoracotomy after preliminary thoracentesis to determine the exact depending position. Author reviewed 576 cases of closed thoracotomy which were performed in the Department of Thoracic and Cardiovascular Surgery, Pusan National University Hospital, since Jan., 1980 to June, 1984. The results were as follows: 1. The age distribution was 10 days to 76 years old and mean age of the patients was 36.6 year, and the most prevalent age group was twenties, and sex predisposition was male dominant, 86.9%. 2. The most common etiologic disease group was pneumothorax and the most common etiologic disease was traumatic hemothorax. 3. Sites of tubing were predominantly at posterior axillary line, 7th intercostal space and midclavicular line, 2nd intercostal space even though frequent presence of free pleural space. The two sides, right and left difference of occurrence rate was more frequent at right side, 51.2%. 4. Usually the durations of tubing was less than 10 days, 52.6%, and the number of tubes used to the same patient concomitantly was one, 73.9%, and the time of tubing to the same patient was 1st, 83.6%. 5. The common symptom and sign were dyspnea, 50.0%, chest pain, 30.7%, cough, 10.7%, fever, 6.5%. Especially, fever and cough was the most common symptom and sign in pyogenic empyema, 59.3%. 6. The common etiologic lesions of pneumothorax were blebs and bullae, 73.3%, and of pyogenic empyema was pneumonia, 69.0%. 7. The complication rate of closed thoracotomy was 26.0%. Among these complications, infection was 44.7%, and intercostal neuralgia was 25.3%. 8. 70.9% of all patients recovered with only closed thoracotomy and the rest of patient needed additional some necessary managements such as open thoracotomy [Blebectomy, Resection, Pleurodesis, Decortication, Bleeding control], open drainage, thoracoplasty and so on to have successful results.

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노인 중독 환자의 특성 (Characteristics of elderly patients with acute poisoning)

  • 김보경;정시영;정구영
    • 대한임상독성학회지
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    • 제8권2호
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    • pp.61-68
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    • 2010
  • Purpose: Poisoning is a major health problem for the elderly, and poisoning can cause fatal side effects. However, the characteristics and clinical features of elderly patients with acute poisoning have not been well studied in the previous domestic research. So, we tried to analyze the clinical characteristics and toxic substances of the patients who were 65 years old or older and who were admitted to the regional emergency medical center due to acute poisoning. Methods: We retrospectively reviewed the medical records and poisoning protocols of the patients who were 65 years of age or older and who had with acute poisoning and who visited the ED in our emergency center from January 2005 to December 2009. We collected the demographic information, the gender, the underlying diseases, the causes and toxic substances, the initial presentation, the treatment and the outcomes. Results: A total of 2179 poisoned patients visited the hospital during 5 years, and among them 244 were 65 years of age or older (11.2%). The mean age was $75.6{\pm}6.9$ years and the male:female ratio was 1:1.7. The most common cause of poisoning was suicide (73.4%) and the most common source of poisonous substances was their own drugs. Of the substances used for poisoning, benzodiazepine was the most common drug (25.8%), followed by sedatives other than benzodiazepine (25.4%), insecticide (12.7%), chemical agents (12.3%) and herbicides (8.2%). The most common initial presentation was mental change (64.8%). When comparing the factors between the three elderly groups, there was no difference in gender, the cause, the substances and the underlying disease. The outcomes of treatment included ICU admission (56.1%), a good condition at discharge (12.7%) and admission to a general ward (12.7%). The overall mortality rate was 10.2% for the elderly patients. Conclusion: In this Korean study, unlike the foreign studies, the most common cause of poisoning in elderly patients was intentional poisoning. The admission rate was 68.8% and mortality rate was 10.2%.

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초등수학영재와 일반학생의 자기효능감과 진로태도성숙과의 관계 비교 (Comparative Study between Mathematically Gifted Elementary Students and Common Students in Self-Efficacy and Career Attitude Maturity)

  • 이정화;류성림
    • 한국수학교육학회지시리즈E:수학교육논문집
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    • 제27권1호
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    • pp.63-80
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    • 2013
  • 본 연구의 목적은 초등수학영재들과 일반학생들 사이의 자기효능감과 진로태도성숙을 비교분석 함으로써 초등수학영재의 특성을 이해하며, 초등수학영재와 일반학생의 진로교육에 도움을 주는 것이다. 연구 대상은 D광역시 소재의 대학영재교육원, 교육청 영재교육원, 초등학교 영재학급의 초등수학영재 237명(5학년 98명, 6학년 139명)과 D광역시 소재의 영재교육 대상학생, 특수아를 제외한 일반학생 221명(5학년 92명, 6학년 129명)이다. 연구 결과 초등수학영재가 일반학생보다 자기효능감이 높게 나타났다. 이는 초등수학영재가 자기 자신에 대한 자신감이 크고, 스스로에 대한 신념이 강하며, 그로 인해 자기 관리 및 과제의 난이도를 적절히 배려하여 비교적 높은 수준의 과제를 선호하는 등의 습관이 형성되어 있음을 알 수 있다. 또한 초등수학영재의 전체적인 진로태도성숙이 일반학생보다 높게 나타났다. 특히 하위요인 중 결정성, 준비성에서는 p< .01 수준에서 두 집단 간 유의미한 차이를 보였으며, 확신성에서는 p< .05 수준에서 유의미한 차이를 나타냈다. 또한 초등수학영재와 일반학생 모두 자기효능감이 높을수록 진로태도성숙이 높은 것으로 나타났다. 이것은 수학영재를 위한 교육과정은 물론 일반교육과정에서도 자기효능감과 진로태도성숙을 향상시킬 수 있는 교육 프로그램이 개발되어야 함을 시사하는 것이라 볼 수 있다.

Clinical Application of Serum Tumor Associated Material (TAM) from Non-small Cell Lung Cancer Patients

  • Li, Cheng-Guang;Huang, Xin-En;Xu, Lin;Li, Ying;Lu, Yan-Yan
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권1호
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    • pp.301-304
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    • 2012
  • Objective: To explore the associations of serum tumor associated material (TAM) with other common tumor markers like carcinoembryonic antigen (CEA), carbohydrate antigen 125 (CA125), carbohydrate antigen19-9 (CA19-9) and its clinical application in non-small cell lung cancer (NSCLC) patients. Methods: A total of 87 patients were enrolled into this study, all with histologically or cytologically confirmed NSCLC. With the method of chemical colorimetry, the level of TAM was determined and compared, while chemiluminescence was used to measure the levels of common tumor markers. Results: The level of TAM decreased after chemotherapy compared with before chemotherapy when CT or MRI scans showed disease control. Furthermore, it increased when disease progessed and there was no statistically significant difference in monitoring of TAM and common tumor markers (P>0.05). Conclusions: Detecting TAM in NSCLC patients has a higher sensitivity and specificity, so it can be used as an indicator for clinical monitoring of lung cancer chemotherapy.

이중밴드 저잡음 증폭기 설계를 위한 공통 소스 접지형 CMOS쌍의 잡음해석 (Noise Analysis of Common Source CMOS Pair for Dual-Band LNA)

  • 조민수;김태성;김병성
    • 한국전자파학회:학술대회논문집
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    • 한국전자파학회 2003년도 종합학술발표회 논문집 Vol.13 No.1
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    • pp.168-172
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    • 2003
  • This paper analyzes the output noise and the noise figure of common source MOSFET pair each input of which is separately driven in the different frequencies. This analysis is performed for concurrent dual band cascode CMOS LNA with double inputs and single output fabricated in $0.18{\mu}m$ CMOS process. Since both inputs and output are matched to near $50{\Omega}$ using on-chip inductors, the measured noise figures are much higher than those of usual CMOS LNA. But, the main concern of this paper is focused on the added noise features due to the other channel common source stage. The dual-band LNA results in noise figure of 4.54dB at 2.14GHz and 6.03dB at 5.25GHz for selectable operation and 7.44dB and 6.58dB for concurrent operation. The noise analysis explains why the added noise at each band shows so large difference.

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