• Communications for Statistical Applications and Methods
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• 제26권4호
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• pp.347-357
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• 2019

We propose new classes of estimators of population mean under non-response using bivariate auxiliary information. Some improved regression (or difference) type estimators have been proposed in four different situations of non response along with their properties and the expressions for the bias and mean square errors of the proposed estimators are derived under double (two-stage) sampling scheme. The properties of the suggested class of estimators are studied and it is observed that the proposed estimators performed better when compared to conventional estimators proposed by Singh and Kumar (Journal of Statistical Planning and Inference, 140, 2536-2550, 2010b), Shabbir and Khan (Communications in Statistics - Theory and Methods, 42, 4127-4145, 2013) and Bhushan and Naqvi (Journal of Statistics and Management Systems, 18, 573-602, 2015). A comparative study is also conducted both theoretically as well as empirically in order to support the results.

• Child Health Nursing Research
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• 제9권3호
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• pp.323-331
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• 2003

Purpose: The purpose of this study is to analyze the factors affecting Deviant Behaviors of Korean High school Students. Method: Data was collected from October 8 to 31, 2002. The subjects for this study were 697 Korean High school Students(boys 347, girls 350), recruited from two High School located in Seoul. Data collection was conducted through the use of 6 Questionnaire that modified by the investigator. The data was analyzed by the SPSS win 10.0 program using Descriptive statistics, Pearson Correlation coefficient and stepwise multiple regression. Result: 1) The mean of total item score the Deviant Behaviors scales was 1.59, which was slightly low. 2) There was a significant correlation between Deviant Behaviors, Type A Personality, Aggression, Impulsivity, Stress and Social Support(γ= .11 ～ .65, p<.001), but It was no significant correlation Type A Personality and Stress(γ= -.01). 3) Stepwise multiple regression analysis showed that (1) Impulsivity, Social Support and Type A Personality were the predictors of Deviant Behaviors and account for 18.6％ of the variance in Deviant Behaviors. (2) Impulsivity account for 3.6％ of the variance in Deviant Behaviors in Subjects with a lower degree of score the Deviant Behaviors. Impulsivity and Social Support account for 23.2％ of the variance in Deviant Behaviors in subjects with higher degree of score the Deviant Behaviors. (3) Impulsivity account for 18.3％ of the variance in Deviant Behaviors in High school girls (n=350). Impulsivity and Social Support account for 20.1％ of the variance in Deviant Behaviors in High school boys (n=347). Conclusion: Impulsivity and Social Support account for Deviant Behaviors of High school Students. Therefore it is necessary to develop nursing intervention to reduce the level of Impulsivity, to increase the Social Support in order to decrease the Deviant Behaviors.

• 한국지능시스템학회논문지
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• 제11권4호
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• pp.347-353
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• 2001

본 논문은 기존의 시간 지연 제어 기법을 이용하여 TSK 모델 퍼지 제어 시스템의 안정화에 적용하는 방법을 제시한다. TSK 모델 퍼지 시스템이 기존의 PDC 방법에 의하여 안정화되어지는 경우 발생하게 되는 LMI 문제를 피하기 위하여 시간 지연 방법에 의한 새로운 안정화 조건이 다루어진다. 제시되어진 방법은 mass-spring-damper 시스템에 적용되어 적용가능성이 평가된다.

• 대한치과의사협회지
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• 제10권6호
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• pp.347-349
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• 1972

The authors selected fifty children aged 2 to 4 years who had normal occlusion from the patients admitted at the Pedodontic Department in the Infirmary of Dental College, S.N.U. Study casts were taken and observed on the primate spaces and terminal planes which are characteristics of primary dentition. The results were as follows: 1. The percentages of terminal planes were 56%±7.02 in mesial step type, 38.0%±6.86 in straight step type, 6.0%±3.36 in distal step type, respectively. 2. The percentages of primate space were 80%±5.09 in maxillary dental arch and 5.0%±7.06 in mandibular dental arch. 3. The percentage of mesial step type in korean children was higher in comparison with that in foreign children and the percentage of the primate space was about the same in korean & foreign children.

• 여성건강간호학회지
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• 제12권4호
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• pp.338-347
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• 2006

Purpose: The purpose of this study was to analyze the types of female college students' personality-based contraception behavior. Method: A Q-methodology was used to identify factors in female college students' personality-based contraception behavior. The 32 selected Q-sample from each of 28 subjects were classified into a shape of normal distribution using a 9 point scale. The collected data was analyzed using a QUANL PC program. Result: Three types of contraception behavior of female college students were identified. Type I is corporate responsibility, Type II is self-protection type, Type III is perceived risk of pregnancy. Conclusion: These results suggest that sexual health education for contraception behavior promotion should focus characteristics influencing on contraception attitudes. Also, efficient contraception should be educated by continuous qualitative research based on contraceptive experiences of college students.

• Journal of Microbiology
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• 제40권4호
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• pp.254-259
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• 2002

The Phytophthora infestans requires two mating types for sexual reproduction. Amplified fragment length polymorphism (AFLP) was used to specifically detect different mating types of P. infestans. The AFLP primers E+AA (5'-GACTGCGTACCAATTCAA-3') and M+CAA (5'-GATGAGTCCTGAG-TAAC AA-3') detected a fragment that is specific in the A2 mating type of P. infestans. This fragment was cloned and sequenced. Based on the sequence data, PHYB-1 and PHYB-2 primer were designed to detect the A2 mating type of P. infestans. A single 347 bp segment was observed in the A2 mating type of P. infestans, but not in the A1 mating type of P. infestans or other Phytophthora spp. Identification of mating type was performed with phenotype (sexual reproduction) and genotype (CAPs marker) methods. Two factors, the annealing temperature and template DNA quantity, were investigated to determine the optimal conditions. Using mating type-specific primers, a unique band was obtained within annealing temperatures of 57$^{\circ}C$-62$^{\circ}C$ and DNA levels of 10pg-100 ng (data not shown).

• 대한치과기공학회지
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• 제28권2호
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• pp.347-353
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• 2006

The Purpose of this study was to compare the distribution of implant fixtures according to length and diameter between screw-retained and cement-retained implant-supported fixed prosthesis and to asses whether prosthesis retained types affected the selection of size of implant fixtures. This study presents a follow-up 2,416 implant-supported fixed type prosthesis that have been screw retained or cemented retained for about 10 years in 14 dental clinics. Included in the study were 458 men and 397 women and implant fixtures used in this study were screw retained type 1,057 and 1,359 of cemented retained type. The statistical results among the diameter types of fixture by prosthesis retained type was no significant difference noted (P= 0.809) and there was significant differences was enough to among the lengths of fixture by prosthesis retained type (P= 0.020). However there were no significant difference among the fixture diameter types and length by prosthesis retained type (P= 0.486). So there was not affected to prostheis fixation mechanism for the size of implant fixtures.

• 대한원격탐사학회지
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• 제27권4호
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• pp.457-466
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• 2011

본 연구의 목적은 Level 3 type 북한 토지피복도를 작성하고 생물계절 특성을 파악 하는 데 있다. 2008년과 2009년에 촬영된 88장과 8장의 MODIS NDVI를 MVC 하여 질이 향상된 영상에 ISODATA 알고리즘을 적용하였다. 생물계절 상 분석을 기반으로 북한의 토지피복도를 구축하고 중분류에 대해서는 정확도 검정을 하였다. 결과, 총 27개 클래스의 북한 토지피복도가 생산되었다. 토지피복은 17개의 산림 서식지, 토지이용은 7개의 농경지와 2개의 시가지, 그리고 한 개의 수역을 포함한다. Level 3 type 생물계절 특성은 휴지기(${\sigma}^2$ = 0.348)와 식생이 급격히 생장하는 봄철(${\sigma}^2$ = 0.347)의 역동성이 가장 컸다. Level 2 type에 대한 정확도 검정에서, 전체 정확도는 85.85%(851/955), Kappa 계수는 0.84 였다. 현장 접근이 불가능한 북한의 토지피복도 구축에 생물계절 상 분석기법 적용은 오분류를 최소화하고 분류정확도를 향상시키는데 기여하였다.

• 생명과학회지
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• 제23권3호
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• pp.347-354
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• 2013

선천성 면역은 감염성 매개체를 자기(self)로부터 변별할 수 있다. 선천성 면역은 감염 초기에 숙주인 자기를 보호하는 인식분자와 효과인자들로 구성되어 있다. Mannose 결합 렉틴(Mannose-binding lectin, MBL)은 $Ca^{2+}$ 의존형 렉틴에 속하며, 콜라겐 유사 domain을 함유하는 C-type 렉틴으로 선천성 면역의 중요한 분자이다. 혈액내 낮은 MBL 농도는 면역결핍 증후군을 나타내며 감염에 대한 심각한 위험성을 초래한다. 사람의 MBL 결핍증은 coding 영역의 돌연변이에 의해 나타나며, 이 돌연변이의 영향을 연구하기 위해 쥐의 상동성 유전자인 MBL-A를 이용하고 있다. 돌연변이 MBL의 기능적, 세포 생리적 연구를 위해 선행연구에서 rat wild type MBL-A 유전자를 클로닝하였으며, 본 연구에서 이 유전자에 콜라겐 유사 domain에서 발견된 세 가지 돌연변이, R40C, G42D, G45E를 site-directed mutagenesis 방법으로 모두 도입하였다. 세 가지 돌연변이가 존재하는 MBL 단백질은 정상 MBL과 마찬가지로 세포 내에서 정상적으로 발현되었으며, 여전히 렉틴 기능을 가지고 있었다. 이는 세 가지 돌연변이가 렉틴 기능을 나타내는 C-말단 쪽의 carbohydrate recognition domain에는 구조적으로, 또한 기능적으로도 영향을 미치지 않는다는 결과이다. 그러나 이 돌연변이는 MBL 단백질이 세포 밖으로 분비되는 것을 방해하였으며, 그 결과로 소포체 내에 잔류하여 소포체 망상구조(endoplasmic reticulumn network)에 커다란 손상을 주며 비정상적인 형체를 초래하였다. 이 같은 결과는 돌연변이 MBL에 의해 나타난 세포 내 병리현상의 새로운 발견으로 향후 MBL의 구조 형성과 분비 연구에 기여를 할 것으로 생각된다.

• 대한간호학회지
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• 제33권3호
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• pp.347-355
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• 2003

Purpose: This study was formed to propose a theoretical background for improving the quality of women's lives by measuring the subjectivity on women. Method: Q-methodology is used for purpose. Q-statements are collected through in-depth interviews and a literature review. 34 Q-statements were selected. There are 33 subjects in the research. The Q-Factor Analysis using PC Quanl program was performed to analyze the data. Result: There were three types of opinions on woman. The first type(equal-recognitive) thinks that men and women are equal, women can handle men, and women are independent, valuable beings. The second type(equal-fixed idea) express that women are not behind men in terms of abilities but are supposed to live for the sake of their husbands and children. The third type(equal-practical) answer that men and women are equal, but women have their own personalities and can participate in social activities and can financially help the families. Conclusion: The study express the overall opinions and attitudes on woman as reviewed by the research subjects. Therefore, this study helps the seizure of an opportunity to build a theoretical base for improving the quality of women's lives.