• 제목/요약/키워드: Wright

검색결과 317건 처리시간 0.03초

부엌 수납장 설계 기준 설정을 위한 기초적 연구 (An Experimental Study for the Design of Household-Storage Facilities)

  • 최재순
    • 대한가정학회지
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    • 제20권4호
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    • pp.155-168
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    • 1982
  • What is attempted here is to find out an optimum method for the design of physical environments that could save human energy expenditures and safely perform household duties. There are, if any, very little amount of research done in this area. This is particulary so when the work relates to the designing of household storage facilities in the light of the energy metabolism of human body. The first step to this study, therefore, is to find out the ways by which we can determine the energy metabolism of human body accurately. To measure the volume and the concentration of human respiration continuously and automatically, a new apparatus is selected here. This includes the recording system with the Wright Respirometer and the Expired Gas Analyzer as well as the computer system to multiply volume by concentration of human respiration and to integrate them for a given time. Then, the author experimented on the reliability of this apparatus and came to the conclusion that this apparatus satisfied our need to research the energy metabolism of human body. Next, the general plan and procedures to experiment with this apparatus have been determined as follows: 1) subjects are three young and sound females. Their physical characteristics are shown in Table 1 and most approximates the standard characteristics of Japanese females, 2) height of open shelves is selected in such away as to correspond to the respective height of each subject(see Table 2), 3) utensils to be stored are box shaped object, which weight is 0.5kg, 1.0kg, 2.0kg or 3.0kg, 4) working motions are given while one or two hands as to place utensil on each shelf from the standard working board, 85 cm in height and then to place back it on the board from the shelf and repeated in constant velocity as 10 times per a minute, 5) each posture of motion is chosen by each subject in free, 6) procedures of measurement of human energy metabolism ard shown at(6), 1, Section 3 as specific methods for using this apparatus. Findings of this study are as follows: 1. Human energy expenditures for storing utensils on shelves by each subject are shown in quantity more accurately than in any other studies, under varying conditions about height of shelves, load of utensils and working motion with one hand and two hands (see Fig. 8~13 and Table 3). 2. Experimental formulae of human energy expenditure for that work are shown as formula (8), (9) and (10), to generalize results of 1. and to apply those for working motion under given conditions. 3. As results of analysis on gained data, we are able to show the standard model of human energy expenditures for storing untensils on shelves by the standard Japanese female (see Table 7 and Fig. 14).

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ESTP 표지를 이용한 국내 소나무 집단의 유전변이 (Genetic Variation of Pinus densiflora Populations in South Korea Based on ESTP Markers)

  • 안지영;홍경낙;이제완;홍용표;강호덕
    • 한국자원식물학회지
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    • 제28권2호
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    • pp.279-289
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    • 2015
  • 소나무의 유전다양성과 유전구조를 추정하기 위해 9개의 ESTP 표지를 13개 소나무 집단에 적용하였다. 소나무 집단의 유전다양성은 관찰된 대립유전자 수(A)가 2.2개, 유효 대립유전자 수(Ae)가 1.8개, 다형적 유전자좌 비율(P)이 98.8%, 이형접합도 관찰치(Ho)가 0.391, 이형접합도 기대치(He)가 0.402로 나타났다. 안강과 강릉 집단을 제외한 11개 집단이 하디-바인베르그 평형을 만족하였다. 집단간 유전분화도(FST)는 0.057으로, 동위효소나 nSSR 표지분석 결과보다 강하게 나타났다. 군집분석에서 집단의 유전적 거리와 지리적 분포간에 뚜렷한 연관성은 확인할 수 없었으며, 집단의 유전분화와 지리적 인접성도 상관이 없는 것으로 나타났다(Mantel 검증, r = 0.017, P = 0.344). 유전자좌에 대한 FST-outlier 분석을 실시한 결과, 빈도주의 방법에서는 FST 값이 신뢰하한 이하인 3개 유전자좌와 신뢰상한 이상인 3개 유전자좌가 특이값으로 추정되었고, 베이즈 방법에서는 3개 유전자좌들만 특이값으로 확인되었다. 두 방법에서 공히 특이값으로 판정된 3개 유전자좌(sams2+AluⅠ, sams2+RsaⅠ, PtNCS_p14A9+HaeⅢ)중 sams2 표지에서 유래된 2개 유전자좌는 balancing selection의 영향을 받는 것으로 추정되었다.

Radiologic Comparison of Humeral Position according to the Implant Designs Following Reverse Shoulder Arthroplasty: Analysis between Medial Glenoid/Medial Humerus, Lateral Glenoid/Medial Humerus, and Medial Glenoid/Lateral Humerus Designs

  • Cho, Nam Su;Nam, Ju Hyun;Hong, Se Jung;Kim, Tae Wook;Lee, Myeong Gu;Ahn, Jung Tae;Rhee, Yong Girl
    • Clinics in Shoulder and Elbow
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    • 제21권4호
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    • pp.192-199
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    • 2018
  • Background: The currently available reverse shoulder arthroplasty (RSA) designs can be classified into medial glenoid/medial humerus (MGMH), lateral glenoid/medial humerus (LGMH), and medial glenoid/lateral humerus (MGLH) prosthesis designs. The purpose of this study was to radiologically analyze the effect of different RSA designs on humeral position following RSA. Methods: A total of 50 patients who underwent primary RSA were retrospectively analyzed. Among 50 patients, 33 patients (group A: MGMH) underwent RSA with Aequalis system (Wright, Inc, Bloomington, MN, USA), 6 (group B: LGMH) with Aequalis system using bony increased offset, and 11 (group C: MGLH) with Aequalis Ascend Flex system. The acromiohumeral distance, acromioepiphyseal distance (AED), lateral humeral offset (LHO), LHO from the center of rotation ($LHO^{COR}$), and deltoid length were radiologically measured to quantify the distalization and lateralization of the humerus. Results: The increment in postoperative AED was $19.92{\pm}3.93mm$ in group A, $24.52{\pm}5.25mm$ in group B, and $25.97{\pm}5.29mm$ in group C, respectively (p=0.001). The increment in postoperative LHO was $0.13{\pm}6.30mm$, $8.00{\pm}12.14mm$, and $7.42{\pm}6.88mm$, respectively (p=0.005). The increment in postoperative $LHO^{COR}$ was $20.76{\pm}6.06mm$, $22.04{\pm}5.15mm$, and $28.11{\pm}4.14mm$, respectively (p=0.002). Conclusions: The radiologic analysis of the effect of different RSA designs on humeral position following RSA showed significant differences in the increment in postoperative AED, LHO, and $LHO^{COR}$ between the 3 groups. Therefore, MGLH design seems to be more effective for humeral distalization and lateralization compared to original Grammont design.

BCR/ABL mRNA Targeting Small Interfering RNA Effects on Proliferation and Apoptosis in Chronic Myeloid Leukemia

  • Zhu, Xi-Shan;Lin, Zi-Ying;Du, Jing;Cao, Guang-Xin;Liu, Gang
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권12호
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    • pp.4773-4780
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    • 2014
  • Background: To investigate the effects of small interference RNA (siRNA) targeting BCR/ABL mRNA on proliferation and apoptosis in the K562 human chronic myeloid leukemia (CML) cell line and to provide a theoretical rationale and experimental evidence for its potential clinical application for anti-CML treatment. Materials and Methods: The gene sequence for BCR/ABL mRNA was found from the GeneBank. The target gene site on the BCR/ABL mRNA were selected according to Max-Planck-Institute (MPI) and rational siRNA design rules, the secondary structure of the candidate targeted mRNA was predicted, the relevant thermodynamic parameters were analyzed, and the targeted gene sequences were compared with BLAST to eliminate any sequences with significant homology. Inhibition of proliferation was evaluated by MTT assay and colony-formation inhibiting test. Apoptosis was determined by flow cytometry (FCM) and the morphology of apoptotic cells was identified by Giemsa-Wright staining. Western blotting was used to analyze the expression of BCR/ABL fusion protein in K562 cells after siRNA treatment. Results: The mRNA local secondary structure calculated by RNA structure software, and the optimal design of specific siRNA were contributed by bioinformatics rules. Five sequences of BCR/ABL siRNAs were designed and synthesized in vitro. Three sequences, siRNA1384, siRNA1276 and siRNA1786, which showed the most effective inhibition of K562 cell growth, were identified among the five candidate siRNAs, with a cell proliferative inhibitory rate nearly 50% after exposure to 12.5nmol/L~50nmol/L siRNA1384 for 24,48 and 72 hours. The 50% inhibitory concentrations ($IC_{50}$) of siRNA1384, siRNA1276 and siRNA1786 for 24hours were 46.6 nmol/L, 59.3 nmol/L and 62.6 nmol/L, respectively, and 65.668 nmol/L, 76.6 nmol/L, 74.4 nmol/L for 72 hours. The colony-formation inhibiting test also indicated that, compared with control, cell growth of siRNA treated group was inhibited. FCM results showed that the rate of cell apoptosis increased 24 hours after transfecting siRNA. The results of annexinV/PI staining indicated that the rate of apoptosis imcreased (1.53%, 15.3%, 64.5%, 57.5% and 21.5%) following treamtne with siRNAs (siRNA34, siRNA372, siRNA1384, siRNA1276 and siRNA1786). Morphological analysis showed td typical morphologic changes of apoptosis such as shrunken, fragmentation nucleus as well as "apoptotic bodies" after K562 cell exposure to siRNA. Western blot analysis showed that BCR/ABL protein was reduced sharply after a single dose of 50nmol/L siRNA transfection. Conclusions: Proliferation of K562 cells was remarkbly inhibited by siRNAs (siRNA1384, siRNA1276 and siRNA1786) in a concentration-dependent manner in vitro, with effective induction of apoptosis at a concentration of 50 nmol/L. One anti-leukemia mechanism in K562 cells appeared that BCR/ABL targeted protein was highly down-regulated. The siRNAs (siRNA1384, siRNA1276 and siRNA1786) may prove valuable in the treatment of CML.

외래 진료가 가능한 경증 천식 환자에서 1초간 노력성 호기량(FEV1)과 최대 호기유속(PEFR)간의 연관성 (The Agreements between FEV1 and PEFR in the Patients of Mild Bronchial Asthma)

  • 장원철;김병국;김순종;유광하;이태훈;이정연;이계영
    • Tuberculosis and Respiratory Diseases
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    • 제59권6호
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    • pp.638-643
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    • 2005
  • 목 적 : 본 연구는 외래에서 진료가 가능한 경도의 천식 환자에서 $FEV_1$ %와 PEFR% 값의 연관성을 알아보고자 시행 하였다. 방 법 : 2003년 9월부터 2004년 8월까지 건국 대학교 병원 호흡기 내과 외래에서 진료를 받은 경증의 기관지 천식 환자들을 대상으로 PEFR과 $FEV_1$를 측정하여 두 검사 값 사이의 연관성을 분석하였다. 결 과 : $FEV_1$ (predicted %)로 경증으로 분류된 87명의 환자 중 PEFR 검사로 82명(94.3%)의 환자가 동일한 경증으로 분류되었고, $FEV_1$ %가 중등증으로 분류된 5명의 환자 중 PEFR로 중증도 분류 시 5명(100%) 모두 동일한 중등증 분류되었다. $FEV_1$ %에 의한 중증도와 PEFR %에 의한 중증도가 일치하지 않는 경우는 전체 92명 중 5명(5.7%)였다. $FEV_1$ %와 PEFR %값의 상관 계수는0.686로(Y= 0.427 + 56.35 X, p<0.01 순상관 관계를 보였고 가중 ${\kappa}$(kappa)상관계수는 0.74 (95% CI, 0.63-0.81)로 일치성을 보였다. 결 론 : 증상이 심하지 않은 경도의 천식 환자에서 PEFR%와 $FEV_1$ %은 높은 일치성을 보여 상호 교환 사용이 가능할 것으로 생각되며, 경도의 증상만 있는 천식 환자에 대해서 폐 기능 검사 기계가 구비되어 있지 않은 의료 기관에서 최대 호기 유속기의 올바른 사용만으로도 정확하고 객관적인 자료를 얻을 수 있을 것으로 판단된다.

한국 재래 염소의 성장에 따르는 혈액상의 변동 (Blood Picture of the Korean Native Goats from Birth to Maturity)

  • 최희인
    • 대한수의학회지
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    • 제14권1호
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    • pp.115-133
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    • 1974
  • Although considerable research has been done on the changes associated with age in the blood picture of domestic and laboratory animals, little work has been made of the changes occurring at different age in the blood picture of goats. And a comprehensive survey of the bood picture of Korean native goats has not been made. The object of the present investigation was to suggest standards for the blood picture of Korean native goats at frequent intervals from birth to maturity. The goats were kept under average farming conditions in this country. Observations were made at the following ages: at birth; 2,4 and 7 days; 2, 3, 4, 5, 6, 7, 8 and 9 weeks; 2.5, 3,6 and 12 months. Blood samples were drawn from the jugular vein. It was taken between 8 and 9 a.m. except those for the at-birth period. Erythrocyte and leukocyte enumerations and, determinations of hemoglobin in blood and hematocrit value were made in the usual manner. Reticulocytes were enumerated per 1,000 erythrocytes in blood smears stained with briIliant cresyl blue and counterstained with Wright's stain. Erythrocytes counts declined from $8.7{\times}10^8/mm^3$ at birth to a low of 7.0 at 4 days of age. These values increased to 11.5 at 5 weeks and reached a maximum of 14.0 at 3 months of age; it then fell to 11.5 at 12 months of age. Concentrations of hemoglobin in blood and hematocrit values were not related to the changes of erythrocyte counts. The values at birth were higher than at any other period during the first year of life. These fell from highs of 12.3 g/100 ml and 38.0 ml/100 ml to lows of 9.2 and 29 at 4 weeks for concentration of hemoglobin in blood and hematocrit value, respectively. There was a common pattern for the hematocrit value and hemoglobin in blood which showed three phases-a fall during the first month, a rise to the third month, and a fall to the mature level at 12 months of age. Mean corpuscular volume and mean corpuscular hemoglobin showed a common pattern. The values were $44.2{\mu}m^3$ and 14.2 pg at birth and fell, at first slowly and then rapidly, to reach adult levels of 24.1 and 7.9 at 6 weeks of age for mean corpuscular volume and mean corpuscular hemoglobin, respectively. Mean corpuscular hemoglobin concentration was little affected by age. Reticulocyte was observed from birth to 4 weeks of age. Percentage of reticulocyte decreased from 0.85% at birth to 0.06% at 4 weeks of age. Total leucocyte counts increased from $5.64{\times}10^3/mm^3$ at birth to a maximum of 13.4 at 3 months; it then fell to 11.5 at 12 months of age. In differential counts myelocyte, juvenile and band form decreased with advancing age. No myelocyte and juvenile were seen after the age of 7 and 9 weeks, respectively, and band forms were rare after the age of 3 months. Percentage of mature neutrophil showed a quick decline from 52.5% at birth to reach a minimum level (34.5%) at 3 months of age; it then rose to 38% at 12 months of age. Percentage of lymphocyte increased from 39.2% at birth to maximum of 59% at 3 month of age; it then fell to 54.9% at 12 months of age. Percentage of monocyte was not affected with advance of age. Percentage of eosinophil and basophil were increased with advance of age to reach a maximum at 2 to 3 month of age. It then fell to adult level at 12 month of age.

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한국 한문고전 번역의 가치담론과 번역자상에 대한 시론적 접근 (An Approach to Value Discourse on Translation of Korean Chinese written Classics)

  • 남지만
    • 동양고전연구
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    • 제73호
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    • pp.445-473
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    • 2018
  • 본고는 한국 한문고전을 번역하는 가치에 대한 담론과 그 번역을 수행하는 번역자상을 다루었다. 연구의 범위를 한국(남한)에 한정하여, 민족문화추진회 등 관련 기관이 창설되고 국가지원을 통해 고전번역 사업이 본격적으로 이루어진 시기인 1960년대 이후를 연구범위로 하여 한국 한문고전을 번역하는 번역가치담론의 변천을 시론적으로 살펴보았다. 1960년대와 70년대에는 민족문화추진회를 중심으로 민족문화 담론과 한학(漢學) 담론이 주조를 이루었다. 민족문화 담론은 근대화와 짝을 이루는 것이었으며, 한학 담론은 근대화 담론에 일정 정도 길항하는 것이었다. 이 시기의 번역자상은 한글을 구사할 수 있는 한학자상에 가까웠다. 민족문화 담론은 정신문화 담론과 짝하여 한국정신문화연구원의 설립을 이끌어 내기도 하였으며, 이후 1980년대에 한국학 담론으로 변화하였다. 또한 80년대 중반 이후 김용옥에 번역학 이론이 소개되어 반향을 일으켰다. 70년대부터 시작한 "조선왕조실록"의 번역은 고전번역 현장의 고전번역 담론을 사업 담론으로 기울게 하였다. 이러한 대형번역사업은 전문역자군을 산출하여, 번역자상으로 전업적 고전번역자상이 나타나게 되었다. 2007년 한국고전번역원의 설립으로 고전번역사업의 안정적 기반이 마련되자 고전번역 담론은 사업 담론의 영역에서 고전번역학을 중심으로한 학술 담론으로 무게중심이 옮겨가게 되었다. 고전번역학의 학문적 정체성에 대한 논의와 함께 고전번역대학원이라는 학문기구의 설립 문제로 논의가 확장되었다. 이 시기의 학문 담론과 짝하여 고전번역자는 고전학자이자 번역자여야 한다는 연구 번역자상이 요청되기 시작한다. 이처럼 고전번역 가치담론은 시대흐름에 따라 변화하였고, 그에 따라 고전번역자상도 변화하였다.