• 제목/요약/키워드: Factor Regression Model

검색결과 1,432건 처리시간 0.031초

여대생의 모발건강관리행위에 영향을 미치는 요인에 관한 연구 (A Study on Factors Effecting the Hair Care of Female University Students)

  • 조성선;문인옥
    • 한국학교ㆍ지역보건교육학회지
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    • 제3권
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    • pp.1-13
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    • 2002
  • Female university students generally have a lower intake of nutrition compared to other age groups due to their adverse interests in their appearance. Drinking, smoking, too much weight control, accumulation of psychological and physical stress are causes of inadequate diet. The result is deterioration of hair health. Establishment of good diet and hair care is the foundation of a healthy hair in adulthood. For this reason, there is a great need for a healthy hair care. The data from a questionnaire survey was analyzed with 800 female undergraduate students responding. Seventeen universities were included in the study, 8 of which were from Seoul, 6 from other large cities and 3 from smaller towns. The objective of this study is to investigate the correlations of these factors and to provide preliminary data for developing an effective hair care education program. Results include the following: 1. Knowledge score of hair care based on general characteristics were higher for students in larger cites compare to small cites or regions. Also, students in higher academic year, more allowance, interest in their apparence and family income showed higher knowledge in this field. These factors had meaningful effect on the statistics of this study. 2. Attitude score towards hair care based on general characteristics were higher for students in larger cites compare to small cites or regions. Also, students in higher academic year, more allowance, interest in their apparence and family income showed higher knowledge in this field. These factors had meaningful effect on the statistics of this study. 3. Behavior score towards hair care was higher for students with greater family income, allowance, interest in appearance. These factors had meaningful effect on the statistics of this study. 4. The correlation study between knowledge, attitude and behavior showed that higher the knowledge and attitude, better the behavior. 5. The analysis of factors effecting hair care behavior showed that interest in health, acknowledgement of current hair condition, total family income were a viable factor in predicting hair care behavior. The predictability of regression model is 38.9 %($R^2$) Therefore, in order to maximize the hair care behavior, consistent and systematic study should be earned out to develope an effective education program to improve health interest.

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요양병원 입원 알츠하이머 치매노인의 재원일수 결정요인 분석 (Determinants of Length of Stay in Geriatric Hospitals - Focused on Alzheimer Dementia's Inpatients)

  • 방효중;이광수
    • 한국콘텐츠학회논문지
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    • 제13권12호
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    • pp.900-909
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    • 2013
  • 본 연구의 목적은 요양병원에 입원한 알츠하이머 치매환자의 재원기간에 영향을 미치는 요인을 분석하는 것이다. 분석 자료는 건강보험심사평가원의 2009년 환자표본데이터를 사용하여 추출하였고, 요양병원에 입원한 65세 이상의 노인이면서 알츠하이머 치매로 입원한 178개 병원의 총 538명을 분석에 이용되었다. 요인은 환자 측 변수와 요양병원의 구조특성변수이며, 환자특성변수는 성별, 연령, 중증도를 사용하였고, 중증도는 요양병원 수가처치 코드를 이용하여 5개의 그룹(의료고도, 의료중도, 문제행동군, 인지장애군, 의료경도)으로 분류하였다. 구조특성변수는 병상수, 의사수, 간호사수, 그리고 CT 보유수를 연구모형에 포함하여 분석하였다. 다중회귀분석결과에서 병원의 구조변수는 환자의 재원기간에 통계학적으로 유의한 영향은 없었다. 환자변수 중에서 중증도의 경우 의료고도와 문제행동군에서 통계학적으로 유의한 영향을 미치는 것으로 나타났으나 모두 음의 관계를 갖는 것으로 나타났다. 이는 중증도가 높은 의료고도에서 레퍼런스 그룹인 의료중도에 대해 양의 관계를 가질 것이라는 예상과는 상반된 결과였다. 이러한 결과는 알츠하이머 치매환자의 특성과 병원의 구조적특성이 환자의 재원일수 변이에 큰 영향을 미치지 않는다는 가능성을 시사하고 있다. 요양병원은 일반 급성기 병원과는 다른 환자의 질병 특성을 지니고 있고, 수가 지불체계에 대해서도 다른 특성을 가진다. 특히 최근 대두되는 '사회적 입원' 문제와 같이 환자의 사회경제적인 요인에 의한 변이가 대두되는 시점에서, 재원기간에 영향을 미칠 수 있는 사회경제적인 요인에 대한 연구가 지속적으로 필요할 것으로 보인다.

천정 거치형 디지털 사이니지 회전 시스템의 BLDC모터 가속수명시험에 관한 연구 (A Study on the Accelerated Life Test of BLDC Motor in Ceiling Mounted Digital Signage Rotating System)

  • 김기홍;권순홍;권순구;박종민;김종순;정성원;최원식
    • 한국산업융합학회 논문집
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    • 제21권3호
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    • pp.141-147
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    • 2018
  • In a time when product development cycles are getting shorter and shorter, many companies are making efforts to develop products with high reliability in a short period of time, accelerated life test is widely used as a method to quickly evaluate reliability. Accelerated life test reduces the test life or the life of the product from the observed data by shortening the lifetime of the product or abruptly lowering the performance under the worse condition than the actual condition in order to shorten the test cost or the test time. In this paper, BL3640A-06P+RB35, DC12V model, which is used in the support device of an automatic rotation type digital signage, which display various information such as textures and images on a display screen in a public place or a commercial space, BLDC motors were subjected to a constant stress test and at the rotational speed of 1rpm, $180^{\circ}$ rotation and reverse rotation under actual use conditions, the stress was imposed on the rotating speed of 2rpm and the weight of the actual installed product from 22.2kgf to 10kgf were installed. The lifetime of the actual use environment condition is 23,545 hours and the rotation speed is accelerated. The life time of the acceleration condition with the additional weight is 1,380 hours. The acceleration factor is calculated as 17.06, the one year guarantee test day is 235 days to 14 days, of the period from 470 days to 28 days, and the third year from 704 days to 42 days. The test date of the BLDC motor was tested on the shortened test date, and the rotational speed and the current value were measured. It is found that there is no defect even if it operates as the test date corresponding to the specified one year warranty period and the 3 year accelerated life test which is experimented. Using the statistical technique of the regression analysis the expected time for the motor to defect to #4 samples was 20 years.

국내 제약기업의 치료제 질환분야 다각화 결정요인 (The factors affecting therapeutical diversification of domestic pharmaceutical companies in Korea)

  • 정승연;이상원
    • 한국산학기술학회논문지
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    • 제19권10호
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    • pp.490-497
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    • 2018
  • 본 연구는 국내 상장제약기업을 대상으로 치료제 질환분야의 다각화 결정요인에 대해 분석함으로써, 최근 화두가 되고 있는 치료제 질환분야에서의 전문화 또는 다각화 전략을 결정짓는 요인이 무엇인지 살펴보았다. 본 연구에서는 자산규모, 매출액, 수익성, 성장성 등 요인들을 설정하고 추가적으로 영업적인 특징을 나타내는 요인인 판매관리비율과 직원 수를 추가하여 이들이 다각화 전략에 어떠한 영향을 미치는지 확인하였다. 연구방법에서는 각 요인들이 다각화에 영향을 미치기까지 걸리는 시간을 감안하여 t-1부터 t-4까지의 시차를 고려하여 변수들을 추가하는 전진선택법 회귀분석을 시행하였다. 총 6가지 요인 중 자산규모와 직원 수, 수익성이 t-1의 시점에서 성장성은 t-2시점에서 다각화의 결정에 유의한 영향을 미쳤다. 국내 상장제약기업들은 자산규모가 클수록, 높은 수익성과 성장성을 가질수록 오히려 소수의 질환분야로 집중화하는 경향을 보였고, 직원 수가 많을수록 다양한 질환분야에 진출하였다. 이는 한 분야의 전문화를 위한 깊이 있는 연구개발의 투자를 위해서는 큰 자산규모와 수익성 및 성장성이 뒷받침이 되어야하기 때문일 것으로 생각된다. 본 연구는 국내 제약기업들이 경쟁력 있는 기업으로 나아가기 위해 자신에게 맞는 다각화 또는 전문화 전략을 세우는데 유용한 정보를 제공할 것으로 기대된다.

산학협력에서 경로 의존성에 대한 연구 - 산업계의 자발적 참여 관점 (Path Dependence in Industry-University Cooperation - In terms of Industry's Voluntary Participation)

  • 한상설;임덕순
    • 산경연구논집
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    • 제9권3호
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    • pp.45-56
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    • 2018
  • Purpose - The Korean university education system is facing innovation and change, including cooperation between industry and university, Therefore It is important to activate the industry-university cooperation. This paper aims to demonstrate the factors that activate industry-university cooperation, particularly about the voluntary participation induction by industry and researching in path dependency perspectives. Research design, data, and methodology - The subject of this research were companies that are aware of the industry-university cooperation program. This research hypothesis is derived from the literature of previous studies of industry-university cooperation, This study have constructs that was defined operationally with reference to previous studies, this research model design to figure out structural relationship among technology leadership of university, university specialization, local network strength, fixation of local economy, recognition of path dependence, participation by industry, performance of industry-university cooperation. From 2017 July. 1 to Sept. 31, questionnaire survey targeting company staff who is involving in industry-university cooperation. 257 questionnaire survey had conducted. 249 investigated data were used for empirical analysis except wrong data. This data were used for AMOS(structural equation) & Regression statistics to verify hypothesis which developed by researcher. Results - The results of this study are as follows. First, technology leadership of universities has a significant effect on voluntary participation by industry. University specialization has significant effect on voluntary participation by industry. Second, local network strength has significant effect on voluntary participation by industry. but fixation of local economy does not affect voluntary participation by industry. Third, recognition of path dependence has moderating effect between Independent(university, company characteristics) and dependent variables(voluntary participation by industry) When recognition level of path dependence is high, preceding factors have a significant effect on voluntary participation by industry than recognition level of path dependence is low. As a result, the degree of recognition of path dependence was shown important variables that induce voluntary participation of industry for industry-university cooperation program. Conclusions - This study suggests that voluntary participation of industry is a very important factor in the achievement of industry-university cooperation. Recognition of interdependence as well as leading factors that encourage voluntary participation of industry is also just as important. If recognition of path dependence was high, Industry's voluntary participation was high.

보건교사의 소명의식이 학교조직몰입에 미치는 영향 (The Influence of Calling on School Organizational Commitment of School Health Nurses)

  • 김효순;이윤신;김옥선;석소현
    • 한국콘텐츠학회논문지
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    • 제20권10호
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    • pp.535-543
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    • 2020
  • 최근 신종감염병의 등장 및 교육환경의 변화 등으로 학령기 학생들의 건강문제가 다양해지면서 보건교사의 역할은 더욱 확대되고 중요해지고 있다. 본 연구는 보건교사의 소명의식이 학교조직몰입에 미치는 영향을 파악함으로서 보건교사의 학교조직몰입을 증진시키기 위한 기초자료를 제공하기 위함이다. 연구의 대상자는 경기지역에 근무하고 있는 초등학교, 중학교, 고등학교 보건교사로서 본 연구의 목적을 이해하고 연구참여에 자발적으로 동의한 143명이다. 자료수집은 보건교사 대상 직무연수를 진행하는 한국교총 종합연수원에 연구자가 직접 방문하여 수집하였다. 수집된 자료는 SPSS/WIN 23.0 통계프로그램을 통해 백분율, 평균 및 표준편차, independent t-test, ANOVA, Pearson correlation coefficient와 simple regression analysis로 분석하였다. 분석결과 보건교사의 직무몰입에 영향을 미치는 요인은 소명의식의 하위요인 중 목적·의미(β=.28, p=.011)가 긍정적 영향을 미치는 것으로 나타났으며, 학급수(β=-.20, p=.006)의 경우 부정적 영향을 미치는 것으로 나타났다. 이 요인들의 설명력은 30.7%였다. 이에 보건교사의 학교조직몰입을 증진시키기 위해서는 목적·의미 증진시키고 학급수를 낮추는 중재방안이 마련되어야 할 것이다.

소아 및 청소년 비만증에서 인슐린 저항성에 미치는 요인 (Affecting Factors of Insulin Resistance in Obese Children and Adolescents)

  • 김덕희;은호선;최인경;김호성;차봉수;김동기
    • Clinical and Experimental Pediatrics
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    • 제48권10호
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    • pp.1076-1081
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    • 2005
  • 목 적 : 인슐린 저항성은 소아 및 청소년 비만증에서 내당능 장애, 당뇨병증, 심혈관계질환을 일으키는 중요한 위험요인 중 하나로 알려져 있다. 따라서 이 연구의 목적은 비만증 청소년이 소아에 비해 인슐린저항성이 증가하는가 그리고 성별에 따른 차이점을 규명하며 인슐린저항성에 영향을 미치는 요인들을 분석하고자 한다. 방 법 : 5-16세의 학생 9,837명을 신체검사하여 92명의 비만증 소아와 187명의 비만증 청소년을 선별하였고, 이들을 대상으로 당부하검사, 공복상태의 혈당, 인슐린농도, 총콜레스테롤, LDL-콜레스테롤, HDL-콜레스테롤, 중성지방의 농도, leptin, hs-CRP 및 adiponectin 농도를 측정하였다. 결 과 : 당부하검사를 통한 비만증 소아 및 청소년에서 성별에 따른 인슐린의 농도는 여자에서 인슐린의 농도가 높았다(P<0.05). 비만증 소아에서 4명(4.3%), 비만증 청소년에서 25명(13.3%)에서 내당능 장애로 나타났으며, 당뇨병으로 진단된 경우는 1례도 없었다. 인슐린 저항성은 여자, leptin, adiponectin, 중성지방의 농도와 밀접한 상관관계가 있었다(P<0.05). 결 론 : 비만증에서 인슐린 저항성은 소아보다 청소년에서 컸으며, 남자보다 여자에서 컸다. 또한 leptin 및 중성지방의 농도가 높을수록, adiponectin의 농도가 낮을수록 인슐린 저항성이 컸다. 소아 및 청소년 비만증에서 인슐린 저항성에 미치는 요인들에 관하여 좀 더 많은 연구가 필요하다.

Assessment of Relationship between Fyn-related Kinase Gene Polymorphisms and Overweight/Obesity in Korean Population

  • Jung, Mi-Young;Kim, Bum-Shik;Kim, Youn-Jung;Koh, In-Song;Chung, Joo-Ho
    • The Korean Journal of Physiology and Pharmacology
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    • 제12권2호
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    • pp.83-87
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    • 2008
  • The fyn-related kinase (FRK) belongs to the tyrosine kinase family of protein kinases. Recent studies have shown that Frk affects pancreatic beta cell number during embryogenesis and promotes beta cell cytotoxic signals in response to streptozotocin. To investigate the genetic association between FRK polymorphisms and the risk of obesity in Korean population, single nucleotide polymorphisms (SNPs) in the FRK gene region were selected and analyzed. The body mass index (BMI) was calculated, and biochemical data (systolic blood pressure, diastolic blood pressure, hemoglobin A1C, triglyceride, total cholesterol, high density lipoprotein, and low density lipoprotein) of blood sample from each subject were also measured. One hundred fifty five healthy control and 204 overweight/obesity subjects were recruited. Genotype frequencies of six SNPs [rs6568920 (+8391G>A), rs3756772 (+56780A>G), rs3798234 (+75687C>T), rs9384970 (+68506G>A), rs1933739 (+72978G>A), and rs9400883 (+75809A>G)] in the FRK gene were determined by Affymetrix Targeted Genotyping Chip data. According to the classification of Korean Society for the Study of Obesity, control (BMI 18 to < 23) and overweight/obesity (BMI$\geq$23) subjects were recruited. For the analysis of genetic data, EM algorithm, SNPStats, Haploview, HapAnalyzer, SNPAnalyzer, and Helixtree programs were used. Multiple logistic regression analysis (codominant, dominant, and recessive models) was performed. Age and gender as covariates were adjusted. For biochemical data, Student's t test was used. The mean value of BMI in the control and overweigh/obesity groups was 21.1${\pm}$1.2 (mean${\pm}$SD) and 25.6${\pm}$2.0, respectively. All biochemical data of the overweight/obesity group were statistically significance, compared with the control group. Among six SNPs, two linkage disequilibrium (LD) blocks were discovered. One block consisted of rs1933739 and rs9400883, and the other comprised rs3756772 and rs3798234. One SNP (rs9384970, +68506G>A) showed an association with overweight/obesity in the codominant model (p=0.03). Interestingly, the AA genotype distribution in the overweight/obesity group (n=7, 3.5%) was higher than those in the control group (n=1, 0.6%), which is not found in either Japanese or Chinese subjects. Therefore, the AA genotype of rs9384970 may be a risk factor for development of obesity in Korean population. The results suggest that FRK may be associated with overweight/obesity in Korean population.

정부의 전통시장 지원 정책 효과에 대한 실증연구 (The Policy Effects on Traditional Retail Markets Supported by the Korean Government)

  • 이규현;김용재
    • 유통과학연구
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    • 제13권11호
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    • pp.101-109
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    • 2015
  • Purpose - A traditional retail market is a place that offers economic opportunity to employees and employers alike it also is a place where the community can meet. The Korean government has invested three trillion won to improve physical and non-physical aspects in traditional retail markets since 2004. However, little research on this has been conducted. We explore this research gap that could lead to theory extension. We analyze consumption behavior with respect to traditional retail markets through an empirical analysis, thus overcoming limits in previous research. We empirically analyze policy effects of traditional retail market projects supported by the Korean government. Research design, data, and methodology - We propose a traditional retail market improvement plan via the relation between cause and effect resulting from the analysis. More specifically, logit analysis was carried out with 1,754 consumers in 16 cities nationwide. In order to analyze consumer consumption behaviors nationwide, the probability was analyzed using a logit model. This research analyzes the link between support and non-support by the Korean government using binary values. The dependent variable is whether Korean government support is implemented; the binomial logistic regression is used as the statistical estimation technique. The object variables are:1 (support) or 0 (nonsupport), and the prediction value is between 1 and 0. As a result of the factor analysis of questions related to attributes of service quality, four factors were extracted: convenience, product, facilities, and service. Results - The results indicate that convenience, product, and facilities have a significant influence on consumer satisfaction in accordance with the government's traditional retail market support. Additionally, the results reveal that convenience, product, facilities, and service all have a significant influence on consumer satisfaction in a traditional retail market's service quality and consumer satisfaction. Finally, the analysis indicates that the highly satisfied traditional retail market customer has a significant influence on revisit intention. Moreover, the results reveal that the highly satisfied traditional retail market customer has a significant influence on recommendation intention. Conclusions - This research focused on consumers nationwide to measure policy effects of traditional retail markets compared to previous research that focused on one traditional retail market or a specific area. We verified the relationship of service quality and customer satisfaction and consumer behavior based on service quality theory. The results indicate that consumer satisfaction of traditional retail markets supported by service quality factors has a significant impact. In a concrete form, the results indicate that these effects are from facility modernization projects and marketing support projects of the Korean government. The results also imply that these facility and management support effects from the Korean government have been consistent. We realize that the Korean government has to selectively support traditional retail markets in major cities and small and medium-sized cities. To that end, the Korean government needs to select a concentration strategy for the revitalization of traditional retail markets.

지역사회 노인의 자신의 노화에 대한 태도와 개인자원, 사회적 지지, 사회참여가 미치는 영향: 대전광역시 거주 노인을 중심으로 (Community-Residing Elderly's Attitude toward Own Aging and Effects of Personal Resources, Social Support, and Social Participation: Focused on Elderly in Daejeon Metropolitan City)

  • 최해경
    • 한국콘텐츠학회논문지
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    • 제18권3호
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    • pp.509-519
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    • 2018
  • 이 연구의 목적은 지역사회 노인들이 자신의 노화에 대해 어떤 태도를 지니고 있는지 파악하고, 개인자원, 사회적 지지, 사회참여를 중심으로 노화에 대한 태도에 영향을 미치는 관련 요인을 규명하는 것이다. 이를 위해 대전광역시에 소재한 노인복지관, 경로당, 노인회 등의 협조를 받아 유의표집으로 60세 이상 노인 198명을 대상으로 자료를 수집하였고 SPSS 22.0을 이용해 기술분석, 상관관계분석, 위계적 회귀분석을 실시하였다. 분석결과 첫째, 조사대상인 지역사회 노인들은 자신의 노화에 대해 부정적으로 인식하고 있는 편으로 나타났다. 둘째, 노화태도의 유의미한 영향 요인은 개인자원 중에서는 자아존중감이 높을수록, 경제력이 좋을수록 자신의 노화에 대한 태도가 긍정적인 것으로 나타났다. 셋째, 사회적 지지 변수 중에는 가족의 정서적 지지만 유의미한 영향 요인으로 밝혀졌는데, 가족의 정서적 지지 정도가 높을수록 노화태도가 긍정적이었다. 넷째, 사회참여를 많이 할수록 자신의 노화에 대한 태도가 긍정적이었다. 다섯째, 모든 독립변수를 포함시킨 모델에서 가족의 정서적 지지와 사회참여 수준의 유의성이 사라져 자아존중감과 경제력만 유의미한 영향 요인이었다. 이러한 연구 결과를 바탕으로 지역사회 노인들의 자신의 노화에 대한 태도에 긍정적 변화를 가져오기 위한 실천적, 정책적 제언을 하였다.