• Title/Summary/Keyword: Discriminative factors

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Somatometric Characteristics and Classification of Early Elementary Schoolgirls -Focusing on the Upper Body- (학령전기 여아의 체형특성과 유형분석 -상반신 체형을 중심으로-)

  • 장정아;권미정;배은아
    • Journal of the Korean Society of Clothing and Textiles
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    • v.26 no.5
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    • pp.573-581
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    • 2002
  • This study was done to classify children's somatotypes and to provide the fundamental data or their clothing sizing system for the purpose of designing patterns fur children's wear and standardizing sizes of ready-made clothes. The sampling was done for 7-8 years-old-girl living in Pusan and Kyungsangnam-do. Data from each girl comprises 33 anthropometic measurments and 7 photogrphic measurments, based on the somatometric characteristics of girls which I had obtained. Factor analysis, cluster analysis, discriminant analysis were performed for statistical analysis of the data. Seven factors which explain 76.49% of the whole variances were extracted. The thirst and second factors which explain more than 70% of the whole variances represent 'horizontal size 'and 'vortical size', which characterize most aspects of the body shape of the subjects. On the basis of the cluster analysis, three different upper body types were categorized. Type 1 has quite long surface length of the upper body and rising shoulders and are close to the averages of this age group. Type 2 has highest stature, biggest frame, dropped shoulders and surface length of the upper body similar to the type 1. Type 3 has shortest stature, smallest frame and sloping shoulders. According to the analysis to discriminate somatotypes of the upper body by this age group, the discriminative items in discriminant function are follows. As this group, waist circumference of discriminant function 1 and front length and length between both shoulder points of discriminant function 2 have large coefficient values.

Development of weight prediction 2D image technology using the surface shape characteristics of strawberry cultivars

  • Yoo, Hyeonchae;Lim, Jongguk;Kim, Giyoung;Kim, Moon Sung;Kang, Jungsook;Seo, Youngwook;Lee, Ah-yeong;Cho, Byoung-Kwan;Hong, Soon-Jung;Mo, Changyeun
    • Korean Journal of Agricultural Science
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    • v.47 no.4
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    • pp.753-767
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    • 2020
  • The commercial value of strawberries is affected by various factors such as their shape, size and color. Among them, size determined by weight is one of the main factors determining the quality grade of strawberries. In this study, image technology was developed to predict the weight of strawberries using the shape characteristics of strawberry cultivars. For realtime weight measurements of strawberries in transport, an image measurement system was developed for weight prediction with a charge coupled device (CCD) color camera and a conveyor belt. A strawberry weight prediction algorithm was developed for three cultivars, Maehyang, Sulhyang, and Ssanta, using the number of pixels in the pulp portion that measured the strawberry weight. The discrimination accuracy (R2) of the weight prediction models of the Maeyang, Sulhyang and Santa cultivars was 0.9531, 0.951 and 0.9432, respectively. The discriminative accuracy (R2) and measurement error (RMSE) of the integrated weight prediction model of the three cultivars were 0.958 and 1.454 g, respectively. These results show that the 2D imaging technology considering the shape characteristics of strawberries has the potential to predict the weight of strawberries.

The Effects of Perceived Health and Ageism Experience on Successful Aging (주관적 건강 및 노인차별경험이 성공적 노화에 미치는 영향)

  • Jeon, Sangnam;Shin, Hakgene
    • 한국노년학
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    • v.29 no.4
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    • pp.1383-1396
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    • 2009
  • In this study, we investigated the effects of perceived health and ageism experience of the elderly on successful aging, which were respectively presumed as predictors of biomedical model and psychosocial model of the successful aging. As important research results, firstly, negligence among ageism experience constructs appeared higher than other discriminatory experiences. Secondly, male showed significantly higher discriminatory experience than female in the area of 3 constructs such as property, negligence and employment ageism. Also there were some different discriminative experiences in the area of perceived health and ageism in terms of age, wealth and education. Finally, the results of hierarchical multiple regression hired to find out factors influencing successful aging showed that the factors such as sex, wealth, perceived health and property discrimination of ageism affected successful ageing. Based on the analytic results, we verified that perceived health, i.e., predictor of biomedical model had higher effect on successful aging than ageism experience, i.e., predictor of psychosocial model of successful aging. Thus, it was suggested that health promotion policy should be considered with priority and also combating ageism as well for successful aging.

The Relationship of Spiritual Well-being and Anxiety, Depression and Quality of Life in Active Old Age (노년기 영성과 불안.우울 및 삶의 질과의 관계)

  • Youm, Hyong-Uk;Cheung, Seung-Deuk;Seo, Wan-Seok;Koo, Bon-Hoon;Bai, Dai-Seg
    • Journal of Yeungnam Medical Science
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    • v.22 no.1
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    • pp.27-42
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    • 2005
  • Background: This study assessed the mental health, in order to determine the effect of the subject's spiritual well-being on anxiety depression and quality of life in active old people, and to verify whether or not spiritual well-being is a new factor for comprehensive health in old people. Materials and Methods: This study selected 184 old people aged over 65 years. The subject's spiritual well-being was assessed by the Korean Spiritual Well-Being Scale (SWS) that was composed of the Religious Well-being Scale (RWS) and Existential Well-being Scale (EWS). The quality of life was assessed using Quality of Life Scale, which was composed of the subjective feeling about life and the subject's satisfaction of their whole life. Results: Among the psychosocial factors, the educational level and physical health, showed significant discriminative score in the SWS. A prior medical history was associated with a significantly low SWS score. Satisfaction with life was associated with a significantly high SWS score. These factors a showed significant discriminative EWS score rather than a RWS. Among the religion factors, the satisfaction with their religion showed significant difference in the SWS. The SWS score especially the EWS affected the anxiety and depression of the Korean Combined Anxiety and Depression Scale (CADS). The subjective feeling of life score was associated with a significantly EWS low score and the subject's satisfaction with their whole life score was associated with a significantly high EWS score. Conclusion: Spiritual well being has significantly effects on anxiety depression and the quality of life in active old age people, and the subject;s spiritual well-being might be a new factor for assessing health in old age.

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Value of the Platelet to Lymphocyte Ratio in the Diagnosis of Ovarian Neoplasms in Adolescents

  • Ozaksit, Gulnur;Tokmak, Aytekin;Kalkan, Hatice;Yesilyurt, Huseyin
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.5
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    • pp.2037-2041
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    • 2015
  • Background: Relationships between poor prognosis of ovarian malignancies and changes in complete blood count parameters have been proposed previously. In this work, we aimed to evaluate clinicopathologic features in adolescents with adnexal masses and sought to establish any predictive value of the platelet to lymphocyte ratio (PLR) in diagnosis. Materials and Methods: This retrospective study was conducted on 196 adolescent females with adnexal masses. Three groups were constituted with respect to clinical or histopathology results: group 1, non-neoplastic patients (n:65); group 2, neoplastic patients (n:68); and group 3 expectantly managed patients (n:63). The main parameters recorded from the hospital database and patient files were age, body mass index (BMI), chief symptoms, diameter of the mass (DOM), tumor marker levels, complete blood count values including absolute neutrophil, lymphocyte, and platelet counts, mean platelet volume, platelet distribution width, and platecrit, surgical features, and postoperative histopathology results. Results: The expectantly managed patients were younger than the other groups (p=0.007). The mean body mass index (BMI) was higher in the neoplastic group (p=0.016). Preoperative DOM, CA125, mean platelet volume and PLR were statistically significantly different between the groups (p<0.05). ROC curve analysis demonstrated that increased PLR (AUC, 0.609; p=0.011) and BMI (AUC, 0.611; p=0.011) may be discriminative factors in predicting ovarian neoplasms in adolescents preoperatively. When the cut-off point for the PLR level was set to 140, the sensitivity and specificity levels were found to be 65.7% and 57.6%, respectively. Conclusions: We suggest that beside a careful preoperative evaluation including clinical characteristics, ultrasonographic features and tumor markers, PLR may predict ovarian neoplasms in adolescents.

Evaluation of Rotator Cuff Repair Using Korean Shoulder Scoring System

  • Shin, Sang-Jin;Lee, Juyeob;Ko, Young-Won;Park, Min-Gyue
    • Clinics in Shoulder and Elbow
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    • v.18 no.4
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    • pp.206-210
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    • 2015
  • Background: Assessment of the clinical outcomes after rotator cuff repair is essential for their effectiveness on treatment. The Korean Shoulder and Elbow Society devised the Korean Shoulder Scoring System (KSS) for patients with rotator cuff disorder. The purpose of this study was to evaluate the availability of the KSS for assessment of clinical outcomes in patients after arthroscopic rotator cuff repair, and for comparison with other appraisal scoring systems. Methods: A total of 130 patients with partial-thickness or full-thickness rotator cuff tear who underwent arthroscopic repair using a single row or double row suture bridge technique were enrolled. The average follow-up period was 25.9 months. All patients were classified according to various factors. Comparison within corresponding categories was performed, and the correlation between the KSS and other shoulder assessment methods including University of California Los Angeles (UCLA), Constant and American Shoulder and Elbow Surgeons (ASES) score was analyzed. Results: Total score of the KSS response had increased from 59.6 preoperatively to 88.96 at last follow-up. All KSS domains, including function, pain, satisfaction, range of motion, and muscle power had improved up to 24 months postoperatively. Statistical significance was observed mainly in preoperative measurements with number and size of torn tendons, and greater than or equal to grade 3 of fatty infiltration. The KSS was best correlated with the UCLA scoring system in both preoperative (r=0.785) and postoperative (r=0.951) measurements. Conclusions: The KSS was highly reliable and valid as a discriminative instrument, and it showed strong correlation with ASES and UCLA scoring systems.

An Exploratory Study on the Optimized Test Conditions of the Lock-in Thermography Technique (위상잠금 열화상 기법의 최적 실험 조건 탐색 연구)

  • Cho, Yong-Jin
    • Journal of the Korean Society for Nondestructive Testing
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    • v.31 no.2
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    • pp.157-164
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    • 2011
  • This work is devoted to the technique application of lock-in infrared Thermography in the shipbuilding and ocean engineering industry. For this purpose, an exploratory study to find the optimized test conditions is carried out by the design of experiments. It has been confirmed to be useful method that the phase contrast images were quantified by a reference image and weighted by defect hole size. Illuminated optical intensity of lower or medium strength give a good result for getting a phase contrast image. In order to get a good phase contrast image, lock-in frequency factors should be high in proportion to the illuminated optical intensity. The integration time of infrared camera should have been inversely proportional to the optical intensity. The other hand, the difference of specimen materials gave a slightly biased results not being discriminative reasoning.

Variations in the Hospital Standardized Mortality Ratios in Korea

  • Lee, Eun-Jung;Hwang, Soo-Hee;Lee, Jung-A;Kim, Yoon
    • Journal of Preventive Medicine and Public Health
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    • v.47 no.4
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    • pp.206-215
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    • 2014
  • Objectives: The hospital standardized mortality ratio (HSMR) has been widely used because it allows for robust risk adjustment using administrative data and is important for improving the quality of patient care. Methods: All inpatients discharged from hospitals with more than 700 beds (66 hospitals) in 2008 were eligible for inclusion. Using the claims data, 29 most responsible diagnosis (MRDx), accounting for 80% of all inpatient deaths among these hospitals, were identified, and inpatients with those MRDx were selected. The final study population included 703 571 inpatients including 27 718 (3.9% of all inpatients) in-hospital deaths. Using logistic regression, risk-adjusted models for predicting in-hospital mortality were created for each MRDx. The HSMR of individual hospitals was calculated for each MRDx using the model coefficients. The models included age, gender, income level, urgency of admission, diagnosis codes, disease-specific risk factors, and comorbidities. The Elixhauser comorbidity index was used to adjust for comorbidities. Results: For 26 out of 29 MRDx, the c-statistics of these mortality prediction models were higher than 0.8 indicating excellent discriminative power. The HSMR greatly varied across hospitals and disease groups. The academic status of the hospital was the only factor significantly associated with the HSMR. Conclusions: We found a large variation in HSMR among hospitals; therefore, efforts to reduce these variations including continuous monitoring and regular disclosure of the HSMR are required.

Influence on the Importance of Store Attributions on Korean Consumer Satisfaction in Duty Free Stores (국내 면세점 점포속성 중요도에 대한 내국인 소비자 평가가 만족에 미치는 영향 연구)

  • Lyu, Moon-Sang
    • The Journal of Industrial Distribution & Business
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    • v.9 no.2
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    • pp.73-80
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    • 2018
  • Purpose - The purpose of this study is to clarify the difference of store attributes of Korean consumers and to analyze it's influence on consumer satisfaction in duty free stores which gain ground inch by inch in the distribution chanel. And it is to find discriminative result as compared with foreign consumer. Research design, data, and methodology - Subjects for the quantitative study, quota sampling was adopted in the Lotte, Shilla downtown and airport duty free stores from the first to 15th December 2016 and 177 questionnaires from Koreans who had purchasing experience in off line duty free store were analyzed. The data was analyzed by using factor and reliability analysis, descriptive statistics analysis, the independent sample t-test and multiple regression analysis. To test consistency, Cronbach's alpha was used. Results - The result were as follows; 1. Korean consumers consider the importance of store attributes in duty free stores in order Product, Economic Feasibility, Convenience, Promotion, and Accessibility. 2. The meaningful impactive factors of duty free store attributes on consumer satisfaction turned out Product and Promotion. 3. These results show meaningful distinction between Koreans and foreigners in terms of consumer satisfaction in duty free stores. Conclusions - A marketer who is working for duty free store consider now that price benefit can not give strong impact to Korean consumers more and should concentrate on various brand assortment even including private brand. In terms of promotion, most duty free shops put special stress on foreign consumer's wants now as highly increasing of Chinese travelers but Korean consumer's sales portion and number of visitor also are steadily increasing. Therefore, a duty free marketer should prepare the Korean-oriented services with more enhanced promotion strategies for individual and group travellers, for example, a mileage service, VIP room and social network system to satisfy Korean consumers. In order to get satisfaction from Korean consumers, it makes effort on product and promotion than accessibility, price and convenience. Due to high level influence, further study is needed to enlarge to on-line market and to develop private brands for duty free stores.

Three-dimensional kinematic motion analysis of door handling task in people with mild and moderate stroke

  • Lee, Jung Ah;Kim, Eun Joo;Hwang, Pil Woo;Park, Han Ram;Bae, Jae Hyuk;Kim, Jae Nam
    • Physical Therapy Rehabilitation Science
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    • v.5 no.3
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    • pp.143-148
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    • 2016
  • Objective: This study aimed to quantify one of the useful upper extremity movements to evaluate motor control abilities between the groups of people with mild and moderate arm impairments performing a door handling task. Design: Cross-sectional study. Methods: Twenty-one healthy participants and twenty-one persons with chronic stroke (9 mild stroke and 12 moderate stroke) were recruited for this study. Stroke participants were divided into 2 groups based on Fugle-Meyer Assessment scores of 58-65 (mild arm) and 38-57 (moderate arm). All they performed door handling task including the pronation and supination phases 3 times. We measured some movement factors which were reaction time, movement time, hand of peak velocity, hand of movement units to perform door handling task using the three-dimensional motion analysis. Results: The majority of kinematic variables showed significant differences among study groups (p<0.05). The reaction time, total and phase of movement time, hand of peak velocity, the number of movement units discriminated between healthy participants and persons with moderate upper limb stroke (p<0.05). In addition, reaction time, total and phase of movement time, the number of movement units discriminated between those with moderate and mild upper limbs of stroke patients (p<0.05). Conclusions: Three-dimensional kinematic motion analysis in this study was a useful tool for assessing the upper extremity function in different subgroups of people with stroke during the door handling task. These kinematic variables may help clinicians understand the arm movements in door handling task and consist of discriminative therapeutic interventions for stroke patients on upper extremity rehabilitation.