• Title/Summary/Keyword: Selection of Variety

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A Study on Attributes of Elderly Housing Selection by The Middle and The Aged (중년층과 노년층의 노인시설주거 선택 속성에 관한 연구)

  • 신영숙
    • Journal of the Korean housing association
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    • v.15 no.2
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    • pp.43-54
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    • 2004
  • The purpose of this study is to identify the elderly housing farcility design preference by comparing two groups, the present residents living in elderly housing facility and the middle aged. The latter has more housing experiences and more design oriented standard of selecting house for quality of living, while the aged are oriented more in economy and investment. It is identified that both group preferred living in elderly housing facility best to any other elderly housing type, including "aging in place." The aged are not yet very concerned about physically homelike design features, but when the middle aged need the elderly housing, it is recommended that more variety and amenity in its type, location, plan and design features. The idealistic facility planning and management system were suggested.

Effect of Variety on Proportion of Botanical Fractions and Nutritive Value of Different Napiergrass (Pennisetum purpureum) and Relationship between Botanical Fractions and Nutritive Value

  • Islam, M.R.;Saha, C.K.;Sarker, N.R.;Jalil, M.A.;Hasanuzzaman, M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.16 no.6
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    • pp.837-842
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    • 2003
  • Five varieties of napiergrasses (Pennisetum purpureum) were fractionated botanically into leaf blade, leaf sheath, stem and head. Chemical composition of each of whole napiergrass and their botanical fractions were determined. Correlation, linear and multiple regressions between botanical fractions and nutritive value of varieties of napiergrass were also estimated. All botanical fractions differed due to the effect of variety. Napier Pusha contained the highest proportion of leaf blade and internode, but the lowest proportion of leaf sheath. Napier Hybrid contained the lowest proportion of leaf blade, but highest proportion of node. Consequently, napier Pusha contained the highest (p<0.01) crude protein (CP, 9.0%), but Napier Hybrid had the lowest CP (7.0%). Chemical composition of whole plant differed significantly (p<0.01; except NFE, p>0.05) due to the variety. Not only the whole plant, chemical composition of most botanical fractions of whole plant differed (p<0.05 to 0.01) due to the variety. The intrarelationships between leaf blade and leaf sheath was negative (r=-0.43). Leaf sheath was also negatively correlated to CP, but positively correlated to ash of whole Napier or their botanical fractions. Leaf blade, on the other hand, increases CP but decreases ash content of whole plant or their fractions. These results, therefore, suggest that napiergrass varieties differ widely in terms of botanical fractions and nutritive value, which may have important implications on intake and productivity of animals. Furthermore, napiergrass varieties should be selected for leaf blade only for a better response.

Design of Lactic Acid Bacteria Aiming at Probiotic Culture and Molecular Typing for Phyogenetic Identification (Probiotics용 유산균의 Design과 Molecular Typing에 의한 동정법)

  • Yoon, Sung-Sik
    • Journal of Dairy Science and Biotechnology
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    • v.18 no.1
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    • pp.47-60
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    • 2000
  • Over decades of work, the probiotic research has grown rapidly with a number of new cultures, which is claimed a variety of benefit. However, many of the specific effects attributed to the ingestion of probiotics remain convoluted and scientifically unsubstantiated. Accordingly, the scientific community faces a greater challenge and must objectively seek cause and effect relationships for many potential and currently investigated probiotic species. Rational selection and design of probiotics remains an important challenge and will require a solid information about the physiology and genetics of candidate strains relevant to their intestinal roles, functional activities, and interaction of with other resident micro flora. As far as beneficial culture of lactic acid bacteria (LAB) is concerned, simple, cost-effective, and exact identification of candidate strains is of foremost importance among others. Until recently, the relatedness of bacterial isolates has been determined sorely by testing for one or several phenotyphic markers, using methods such as serotyping, phage-typing, biotyping, and so forth. However, there are problems in the use of many of these phenotype-based methods. In contrast, some of newer molecular typing methods involving the analysis of DNA offer many advantages over traditional techniques. These DNA-based methods have the greater discriminatory power than that of phenotypic procedures. This review focuses on the importance and the basis of molecular typing methods along with some considerations on de-sign and selection of probiotic culture for human consumption.

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Phenotypic Characterization of Amaranth Resources for the Selection of Promising Materials

  • Hwang Bae Sohn;Su Jeong Kim;Jung Hwan Nam;Do Yeon Kim;Jong Nam Lee;Su Young Hong;Yul Ho Kim
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2022.10a
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    • pp.211-211
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    • 2022
  • Amaranth is a nutritious and broadly adapted seed crop in high demand around the world. A preliminary approach for understanding the genetics of amaranth resources entails a morphologic characterization, which can provide the basis for breeding the first variety in Korea, leading to satisfying the needs of farmers and consumers. Therefore, this study aimed to evaluate the phenotypic characteristics of ten genetic amaranth accessions for the selection of outstanding accessions in terms of yield and grain quality. A randomized complete block design was used, with fifteen replications for each accession under field conditions. Five quantitative and three qualitative descriptors were evaluated with descriptive analysis. The results showed that the accessions with plant heights smaller than the average (>112.7 cm) presented lower yields and smaller seed sizes, thus decreasing the grain quality. The cluster analyses established groups of accessions with good yields (>30.1 g of seeds per plant) and stable morphological characteristics. Based on yield and morphological descriptors, the proposed selection index indicated four accessions as potential parents for amaranth breeding programs in Kora.

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In Vitro Selection of Hammerhead Ribozymes with Optimized Stems I and III

  • Sim, So-Yeong;Kim, Se-Mi;Kim, Ha-Dong;Ahn, Jeong-Keun;Lee, Young-Hoon;Cho, Bong-Rae;Park, In-Won
    • BMB Reports
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    • v.31 no.2
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    • pp.177-182
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    • 1998
  • A pool of cis-acting hammerhead ribozymes randomized in their substrate recognition sequences was constructed. A variety of active cis-acting ribozymes which had various structures of stems I and III was selected from the pool by in vitro selection. The selected ribozymes were cloned and sequenced. The relationship between the cleavage efficiency and base-pairing in stems I and III of the selected ribozymes was investigated. The ribozymes with the smaller difference in folding energies between the active conformation and the stable but inactive conformation showed a tendency to have the better cleavage efficiency. The optimum length of stem I was 5 or 6 bases while the longer stem III, in general, appeared to be required for efficient cleavage. The specificity of the ribozyme reaction is discussed in terms of the length of stems I and III.

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A Study on Importance and Satisfaction of Michelin Restaurant Selection Attributes - Starred Restaurants and Bib Gourmand Restaurants - (미쉐린 레스토랑 선택속성 중요도와 만족도에 관한 연구 - 스타 레스토랑과 빕 구르망 레스토랑을 중심으로 -)

  • Do, HyunWook
    • Journal of the Korean Society of Food Culture
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    • v.35 no.1
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    • pp.55-64
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    • 2020
  • This study on the importance and satisfaction of selection attributes for customers using Michelin restaurants. The survey was conducted on 309 respondents who had visited and used restaurants by classifying the Michelin restaurants into starred restaurants and Bib Gourmand restaurants. The data was collected and the frequency analysis, t-test verification, and IPA analysis were performed using the SPSS 25.0 statistical program. The results of the study examined the difference between the importance and satisfaction of the choice of starred restaurants. Overall, the importance was higher than satisfaction. The importance of hygiene and cleanliness was recognized by many customers that the expectation for the overall Starred restaurants was very high. Bib Gourmand, showed that the importance was higher than satisfaction. In terms of importance and satisfaction, the taste of food is the most important and the satisfaction is high. Comparing the IPA analysis of the attributes of 1) hygiene and cleanliness, food quality, convenience, and facade of food, 2) service professionalism and variety of menus, 3) food price, atmosphere and amount, and 4) the attitude and kindness of the employees were shown. This study has great significance in providing practical basic data for the management of domestic Michelin restaurants.

Generalized Linear Model with Time Series Data (비정규 시계열 자료의 회귀모형 연구)

  • 최윤하;이성임;이상열
    • The Korean Journal of Applied Statistics
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    • v.16 no.2
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    • pp.365-376
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    • 2003
  • In this paper we reviewed a variety of non-Gaussian time series models, and studied the model selection criteria such as AIC and BIC to select proper models. We also considered the likelihood ratio test and applied it to analysis of Polio data set.

STATISTICAL PROPERTIES OF GRAVITATIONAL LENSING IN COSMOLOGICAL MODELS WITH COSMOLOGICAL CONSTANT

  • LEE HYUN-A;PARK MYEONG-GU
    • Journal of The Korean Astronomical Society
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    • v.27 no.2
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    • pp.103-117
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    • 1994
  • To extend the work of Gott, Park, and Lee (1989), statistical properties of gravitational lensing in a wide variety of cosmological models involving non-zero cosmological constant is investigated, using the redshifts of both lens and source and observed angular separation of images for gravitational lens systems. We assume singular isothermal sphere as lensing galaxy in homogenous and isotropic Friedmann­Lemaitre-Robertson- Walker universe, Schechter luminosity function, standard angular diameter distance formula and other galaxy parameters used in Fukugita and Turner (1991). To find the most adequate flat cosmological model and put a limit on the value of dimensionless cosmological constant $\lambda_0$, the mean value of the angular separation of images, probability distribution of angular separation and cumulative probability are calculated for given source and lens redshifts and compared with the observed values through several statistical methods. When there is no angular selection effect, models with highest value of $\lambda_0$ is preferred generally. When the angular selection effects are considered, the preferred model depends on the shape of the selection functions and statistical methods; yet, models with large $\lambda_0$ are preferred in general. However, the present data can not rule out any of the flat universe models with enough confidence. This approach can potentially select out best model. But at the moment, we need more data.

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A Study on Restaurant Menus evaluation factors in Hotel (호텔 레스토랑의 메뉴 평가 요인 분석 연구 (한식당을 중심으로))

  • 김기영;김선정
    • Culinary science and hospitality research
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    • v.6 no.1
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    • pp.25-55
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    • 2000
  • The Development of a new menu item in a restaurant usually begins when your chef prepares a creative "brainchild" that he serves to you, the owner. If you are satisfied with the new dish, It gets a "go-ahead" signal, under the assumption that what appeals to you will appeal to a significant number of your customers. While many excellent and successful items have been created this way, It is not reasonable to expect that your tastes can represent the wide variety of your potential guests tastes. The purpose of this study is to examine the factors that have an influence on customers′ menu evaluation. A menu is a marketing tool which delivers restaurant′s image and message to customers needs and wants to restaurant. So far, studies on menu have been done in an analytical way from a management′s viewpoint and inadequate to reflect customers′ needs and wants. In this study is to examine the factors that have an influence on customers′ menu evaluation. The factors affected the customers′ menu evaluation of hotel restaurant in the three factors. Three factors are food service factor, menu copy factor, value of food. Correlation between the evaluation of criteria and selection of menu was examined. All Three evaluation criteria have shown strong correlation with selection of menu of these criteria, menu-copy factor was found to be most strongly correlated with selection of menu. In conclusion, As a study on the Customer′s evaluation factors of the Korean restaurant menus in hotels, It raises to exert us strength in the menu management of Korean restaurant.

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A Study on Survey and Applicability of Evaluation and Selection Models for Software Products (소프트웨어 제품을 위한 평가 선정 모형의 조사 및 적용성에 관한 연구)

  • Park, Ho-In;Jung, Ho-Won
    • The Transactions of the Korea Information Processing Society
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    • v.4 no.7
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    • pp.1706-1718
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    • 1997
  • The rapid increase in the use of many commercial software products has necessitated a systematic and objective method of their evaluation and selection. Our study focuses on the assignment of weights and choice of proper models. First, the weights of attributes are assigned consistently by using the analytic hierarchy process. Second, many models, which can be suitable for the structure of evaluation and selection for software product, are collected, categorized into two types of model, and compared in terms of their strength and weakness. The models involved are four compensatory models and seven noncompensatory models. Finally, they are analyzed through the application of specific software products(database data modelers) in terms of their attributes. Our study enhances the applicability of models to a variety of user requirement utilizing the evaluating procedure and applications.

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