• Title/Summary/Keyword: Statistical qualities

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Household dietary practices and family nutritional status in rural Ghana

  • Nti, Christina A.
    • Nutrition Research and Practice
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    • v.2 no.1
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    • pp.35-40
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    • 2008
  • A cross-sectional study involving 400 mothers was conducted in the Manya Krobo district of Ghana with the objective of studying household dietary practices, quality of diets and family nutritional status of rural Ghana, A combination of methods, including structured interviews using questionnaire, dietary assessments and anthropometry was used to collect data for the study. The data obtained was analyzed using Statistical Package for Social Sciences (SPSS) Version 10 in Windows. Means and standard deviations were generated for continuous variables and frequency distribution for categorical variables. Most women consumed meals three times a day but only a few (12.5%) cooked all three meals at home. Breakfast and lunch were the two main meals purchased from food vendors. The most frequently consumed food items on daily basis were the starchy staples, maize, fish, pepper, onion, tomato and palm fruits. The nutritional qualities of diets were poor in terms of calcium and the B-vitamins. A significant proportion of the women were nutritionally at risk of being either underweight (12%), overweight (17%) or obese (5%). For adequate nutrition in this population, nutrition education intervention programs aimed at improving nutrient intake through improved diet diversity and increased use of local foods rich in calcium and the B-vitamins needs to be undertaken. There is also the need to intensify education on excessive weight gain and its attendant health problems in the area.

Study on a Clinical Collaborative Communication System in Healthcare Organizations -Focused on Patient Education (보건의료 조직의 협업적 의료 커뮤니케이션 시스템에 대한 연구 - 환자교육을 중심으로)

  • Park, Hwagyoo
    • The Journal of Korean Association of Computer Education
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    • v.16 no.2
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    • pp.79-90
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    • 2013
  • Communication errors have severe consequences clinical quality and disputes in medical organizations. Thus, clinical communication has become a major practice recently, since clinical and managerial effectiveness can also be enhanced by improving the quality of the physician, medical staff, and laboratories interactions. Both medium and large-sized hospitals are increasingly adopting the philosophy to shorten clinical service time while enhancing higher medical service quality and lower healthcare service costs. From this motivation, this paper studies on the clinical collaborative communication concept and investigates approaches to the philosophy for implementation. The system has been theorized to improve communication and enhancing medical outcome qualities. In addition, to validate the system, the author analyzes the efficiency and effectiveness in S hospital, using statistical survey works.

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Genetic Parameter Estimates for Ultrasonic Meat Qualities in Hanwoo Cows

  • Lee, D.H.;Choudhary, V.;Lee, G.H.
    • Asian-Australasian Journal of Animal Sciences
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    • v.19 no.4
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    • pp.468-474
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    • 2006
  • Real time ultrasound data was generated on 10,596 live Hanwoo cows to study genetic variation on ultrasonic beef quality traits and to assess the best model to estimate genetic parameters on these traits. Pedigree stacking and data validation was done using the SAS statistical software and the genetic parameter estimates were obtained by EM-REML algorithm. Out of the five different multi-trait mixed animal models constructed, the optimal model included fixed effects of herd, year-season-appraisal, body condition score, linear and quadratic covariates for chest girth, the linear covariate effect of age and the random animal and residual effect of the five models studied. The heritability of longissimus muscle area (LMA), $12^{th}$ rib measurement of back fat thickness (BF) and marbling score (MS) was 0.11, 0.17 and 0.15, respectively. Genetic correlation of LMA vs. BF, LMA vs. MS and BF vs. MS was -0.15, 0.06 and 0.61, respectively. The results showed presence of genetic variation in these ultrasonic beef quality traits in Hanwoo cows and suggest that the selection of Hanwoo cows may be possible by performing ultrasonic scans on live animals, which will ultimately be helpful in reducing the generation interval and the cost of selection procedure.

Application of Taguchi Method and Orthogonal Arrays for Optimization of Adhesion of $SrZrO_3$ Coatings on Ag/Bi(2223) Tapes

  • Lee, Se-Jong;Lee, Deuk-Yong;Song, Yo-Seung;Kim, Bae-Yeon
    • Progress in Superconductivity and Cryogenics
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    • v.5 no.1
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    • pp.13-16
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    • 2003
  • Adhesion of $SrZrO_3$ resistive oxide barrier on Ag sheathed Bi(2223) tapes prepared by the sol-gel and dip-coating method was evaluated with an aid of Taguchi method and Lie($2^1{\times}3^7$) orthogonal arrays to determine the optimal process combination of levels of factors that best satisfy the bigger is better quality characteristic (QC=B). For analyses of results statistical calculations such as average and analysis of variance (ANOVA) were employed to analyze the results for improving the performance qualities of the dip-coated $SrZrO_3$ film. Experimentally, the performance of the films was evaluated in terms of bond strength by varying Sr/Zr moi ratio (A), amount of organic vehicle additives (B), drying temperature (C) and time (D), heat treatment temperature (E) and time (F), respectively. The optimal combination of levels of factors was determined to be $A_3B_2C_3D_2E_1F_3$ having a 90% confidence level.

Molecular Docking of Tetrahydrofuran-2-yl Analogues to Porcine Odorant Binding Proteins (pOBP & pPBP) and Binding Interactions (돼지 냄새물질 결합 단백질 (pOBP 및 pPBP)에 대한 Tetrahydrofuran-2-yl 유도체의 분자도킹과 결합 상호작용)

  • Cho, Yun-Gi;Park, Chang-Sik;Sung, Nack-Do
    • Reproductive and Developmental Biology
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    • v.34 no.1
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    • pp.7-13
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    • 2010
  • The binding affinity constants ($p(Od)_{50}$) and molecular docking scores (OS) between porcine odorant binding proteins pOBP (1HQP) and pPBP (1GM6) as receptor and a series of tetrahydrofuran-2-yl (A & B) analogues as substrate, and their interactions were discussed quantitatively using three-dimensional quantitative structure-activity relationship (30-QSAR) models. The statistical qualities of the optimized CoMF A models for pOBP were better than those of the CoMSIA models. The binding affinity constants and OS between substrate and receptor molecules were dependent upon steric and hydrophobic interaction. The DS constants of the substrates into the binding site of OBP (1HQP) were bigger than those of PBP (1GM6). The resulting contour maps produced by the optimized CoMFA model were used to identify the structural features relevant to the binding affinity in binding site of pOBP.

The Evaluation of Water Quality Using a Multivariate Analysis in Changnyeong-Haman weir section (다변량 통계분석을 이용한 낙동강 창녕함안보 구간의 수질 특성 평가)

  • Gwak, Bo-ra;Kim, Il-kyu
    • Journal of Korean Society of Water and Wastewater
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    • v.29 no.6
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    • pp.625-632
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    • 2015
  • The study of water environment system using a multivariate analysis in Changnyeong-Haman weir section has been conducted. The purpose of this study is to establish better understanding related water qualities in the Changnyeong-Haman weir section which can provide useful information. The data were consisted of water quality data and algae data including WT(water temperature), pH, DO, EC, COD, SS, T-N, $NH_3-N$, T-P, $PO_4-P$, Chl-a, TOC, d-silica, t-silica, Cyanobacteria, Diatoms, and Green algae. Statistical analyses used in this study were correlation analysis, principal components, and factor analysis. According to correlation analysis on COD and TOC, it revealed that the each value of correlation coefficient was 0.843. On the other result, a negative correlation was observed between diatoms and d-silica. Furthermore, the results of principal component analysis to the overall water quality were classified into four main factors with contribution rate 81.071%.

A Study on Improvement of Market Share Rate in Open Market through Service Quality Improvement (서비스 품질 개선을 통한 오픈 마켓의 시장 점유율 향상에 관한 연구)

  • Lee, Won-Hyung;An, Jin-Oh;Kim, Yong-Soo
    • Journal of Korean Society for Quality Management
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    • v.38 no.3
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    • pp.340-353
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    • 2010
  • Properly designed and well-executed services enable e-commerce companies to capture the unique needs and preferences of customers, help them build customer loyalty, and thereby, strengthen their competitiveness in the marketplace. An object of this study is the new open-market company and it has only 3 percent of the market share. Therefore, it is needed to raise the market share by improving the service qualities. This article presents a six sigma project for service quality improvement in the open-market company. This study was carried out based on five steps of DMAIC which is six sigma technique. First, a defect rate was defined as unsatisfaction rate. In addition, 50-people data was analyzed and it was shown that the defect level was 2.5 sigma level. In this study, in order to raise the sigma level, novel eight action items were determined based on SIPOC, FDPM, cause and effect diagram, matrix chart, Pareto chart and statistical analysis.

Minimum Structural Requirements for Fungicidal Evaluation of N-Phenyl-O-phenylthionocarbamates against the Capsicum Phytophthora Blight (Phyophthora capsici) Based on the 3D-QSARs

  • Soung, Min-Gyu;Jang, Seok-Chan;Sung, Nack-Do
    • Bulletin of the Korean Chemical Society
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    • v.31 no.11
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    • pp.3297-3300
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    • 2010
  • In this study, the 3D-QSARs (three-dimensional quantitative structure-activity relationships: CoMFA and CoMSIA) between structural changes of N-phenyl-O-phenylthionocarbamate analogues (1-30) and their fungicidal activities against the capsicum phytophthora (Phyophthora capsici) fungi were analyzed, then considered quantitatively in terms of minimum structural requirements for fungicidal evaluation. The statistical qualities ($r^2_{cv.}$ = 0.510 and $r^2_{ncv.}$ = 0.948) of the optimal CoMFA 1 model are improved over the other models in the conditions of field combinations, and the two alignments. In the optimal CoMFA 1 model, relative contribution percentages of the CoMFA field were: steric field, 52.3%; electrostatic field, 37.8%; hydrophobic field, 9.9%. Results were similar for the CoMFA 2 model. Therefore, the steric field of the analogues had the highest contribution ratio for fungicidal activity. Specifically, with the contour map of steric fields, the fungicidal activity increased when bulky steric Y-substituents were introduced to the meta-position on the N-phenyl ring and small steric Y-subsituents were introduced to its para-position.

Propeller Racing of Ocean-going Ships with Twin Screw Propellers (2축선의 프로펠러 레이싱 추정법에 관한 연구)

  • Park, J.H.
    • Journal of Power System Engineering
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    • v.11 no.1
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    • pp.98-106
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    • 2007
  • This paper presents a statistical prediction procedure for the propeller racing of ships with twin screw propellers sailing in ocean waves. The propeller racing is one of the most important factors of seakeeping qualities in relation to the safety of main engine and shafting system. It is especially significant key word for designing the twin-screw-propeller-type ship in view of allowable maximum propeller diameter etc.. In former studies, the propeller racing generally means the situation (propeller exposed) in which the relative motion amplitude between ship hull and wave surface would exceed a depth of point in rotary disk propeller. Therefore, it seems that the magnitude of the amplitude and its exceeding frequency have been examined as a principal subject of study as usual. However, the time during which the amplitude exceeds a depth of point must be also one of most important factor affecting the trend of propeller racing. This paper proposes a simply practical method for estimating the time lasting of exposed propeller related to twin screw propeller racing in rough confused seas on the basis of the statistics. Then, it is confirmed that the practical method is useful and convenience for considering the propeller racing in the stage of the basic design.

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Digital Image Quality Assessment Based on Standard Normal Deviation

  • Park, Hyung-Ju;Har, Dong-Hwan
    • International Journal of Contents
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    • v.11 no.2
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    • pp.20-30
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    • 2015
  • We propose a new method that specifies objective image quality factors by evaluating an image quality measurement model using random images. In other words, No-Reference variables are used to evaluate the quality of an original image without using any reference for comparison. 1000 portrait images were collected from a web gallery with votes constituting over 30 recommendation values. The bottom-up data collecting process was used to calculate the following image quality factors: total range, average, standard deviation, normalized distribution, z-score, preference percentage. A final grade is awarded out of 100 points, and this method ranks and grades the final estimated image quality preference in terms of total image quality factors. The results of the proposed image quality evaluation model consist of the specific dynamic range, skin tone R, G, B, L, A, B, and RSC contrast. We can present the total for the expected preference points as the average of the objective image qualities. Our proposed image quality evaluation model can measure the preferences for an actual image using a statistical analysis. The results indicate that this is a practical image quality measurement model that can extract a subject's preferred image quality.