• Title/Summary/Keyword: 편의표본추출법

Search Result 149, Processing Time 0.02 seconds

Alternative to Improve the Lighting of Crosswalk on Rural Highways (지방지역 도로 횡단보도 조명 개선 방안)

  • Lee, Suk-Ki
    • The Journal of the Korea Contents Association
    • /
    • v.13 no.3
    • /
    • pp.435-443
    • /
    • 2013
  • While rural highways carry on lower traffic volumes, the deviations of running speeds between vehicles appear to be higher on rural highways than urban highways. The speed characteristic of rural highways is adding to pedestrian-related accidents which occur on a crosswalk with poor sight distance due to the limits of car headlights and lighting. Specially, the aged was mostly occupied in nighttime-related accidents on crosswalks, and pedestrians crossing on the far side of approaching vehicles appear to have the probability of fatality higher than the near side. An alternative is needed to resolve the compounded accidents, and then this study is to establish a new approach to an optimum lighting environment on a crosswalk to improve pedestrian safety. This study was conducted by a survey and a field study on the lighting of existing crosswalks. The field study shows that the existing lighting has the problem of wasting energy and impeding walking due to glare. The survey shows that nighttime sight distance on a crosswalk is required to improve and that road users prefer to be brighter pedestrian waiting space together with the crosswalk. Thus, a lighting environment that is not too bright and illuminates the crosswalk and the pedestrian waiting space is needed to implement.

Analysis of Smoking Characteristics and Oral Health Practice in Health and Non-Health Related Majors (보건계열과 비보건계열 대학생의 흡연관련 특성과 구강건강실천 분석)

  • Lee, Hyun-Ok;Kim, Ah-Jin
    • Journal of dental hygiene science
    • /
    • v.14 no.2
    • /
    • pp.183-190
    • /
    • 2014
  • The purpose of this study was to examine the smoking-related characteristics of health and non-health related majors and the relationship between the smoking dependence and oral health practice of college students. The subjects in this study were the college students who were selected by convenience sampling from four different universities in the city of Jeonju, North Jeolla Province. The answer sheets from 811 respondents were analyzed. The findings of the study were as follows: The rate of the smoker students whose major was related to health stood at 20.6 percent, and that of the smoker students whose major was not related to health stood at 29.4%. There were significant differences according to the track of their major (p<0.05). As for links between smoking dependence and a plan to quit smoking, 32.7% of the health-related majors who considered themselves to depend on smoking replied they would give up smoking if there would be a rise in cigarette price (p<0.005), and 37% of the nonhealth related majors who considered themselves to depend on smoking gave the same answer. Thus, the largest group of the students intended to quit smoking if there would be a rise in cigarette price, and there were statistically significant differences according to smoking dependence (p<0.05). Concerning connections between smoking dependence and actual oral health practice, the non-health related majors who didn't consider themselves to depend on smoking got 3.53 in the item whether they brushed their teeth twice or more a day (p<0.05). In conclusion, the development and implementation of systematic programs that are to teach students to stay away from or quit smoking and take care of their oral health regardless of their major are required to step up the oral health promotion of college students.

Association between Perceived Periodontal Status and Sexual Function in Adult Men (성인 남성의 주관적 치주건강상태와 성기능의 관련성)

  • Cheon, Sae Hee;Jeong, Seong Hwa
    • Journal of dental hygiene science
    • /
    • v.14 no.2
    • /
    • pp.132-139
    • /
    • 2014
  • The aim of this study was to investigate the association between perceived periodontal status and sexual function among adult men. Three hundred thirty adult male participated in this study living at Changwon and Jinju. All the participants surveyed the socio-demographic characteristics, perceived periodontal status, stress, and international index of erectile function (IIEF) using self-administrated questionnaire. The univariate and multivariate analyze were adapted to access the crude and adjusted associations using PASW Statistics 18.0. In univariate analysis, there were significant differences between perceived periodontal status and IIEF and most of socio-demographic characteristics (p<0.05), but no significant differences between stress and all of socio-demographic characteristics (p>0.05). The sexual function was negatively correlated with perceived periodontal status (r=-0.228, p<0.001) and stress (r=-0.257, p<0.001), respectively. In multivariate analysis, perceived periodontal status was significantly associated with sexual function (b=-0.889, p=0.030) after adjusting for socio-demographic characteristics and stress. Therefore, it is found that perceived periodontal status negatively influenced on sexual function in adult men.

Effects of SNS Social Capital on Trust and Purchase Intention of Food Products: Focused on the Moderating Effects of Perceived Risk and SNS Receiver Characteristics (SNS 사회적 자본이 외식상품 신뢰와 구매의도에 미치는 영향: 지각된 위험과 SNS 수신자 특성의 조절효과를 중심으로)

  • Lee, Hyoung-Ju;Han, Ji-Soo
    • Culinary science and hospitality research
    • /
    • v.22 no.7
    • /
    • pp.131-147
    • /
    • 2016
  • The purpose of this study was to verify the effects of two types of social capital on trust and purchase intention of food products. In addition, the moderating roles of perceived risk and SNS receiver characteristics were also examined. The survey for this study was conducted from the 17th to the 30th of June, 2016 through SNS using the convenience sampling method. A total of 230 responses were collected, of which 200 were used for analysis, after excluding responses containing missing data. Multiple regression and moderated regression were conducted to verify the hypotheses. The results from this study are as follows. First, it was found that social capital (bridging social capital and bonding social capital) had an effect on trust of food product. Second, perceived risk of food product was found to moderate the relationship between social capital (bridging social capital and bonding social capital) and trust. Third, trust of food product significantly impacted purchase intention. Fourth, SNS receiver characteristics of food product were found to moderate the relationship between trust and intention;, and trust of food product was found to mediate the relationship between bridging social capital and purchase intention.

A Study on Effects of the Service Quality and the Usage Review Characteristics of Smartphone Majib App on Satisfaction and Reuse Intention of Majib App (스마트폰 맛집 앱 서비스품질과 사용후기 특성이 앱만족 및 재이용의도에 미치는 영향에 관한 연구)

  • Han, Ji-Soo
    • Culinary science and hospitality research
    • /
    • v.22 no.2
    • /
    • pp.234-251
    • /
    • 2016
  • The purpose of this study is to verify the effects of service quality and usage review of smartphone Maiib application(apps) on satisfaction, and reuse intention, convenience sampling method was employed and survey was conducted during the 15th of September, 2015 to the 30th on October as perceived by smartphone Maiib app users. Total of 312 responses were collected, and 295 usable data were used for statistical analysis excluding missing data. Descriptive analysis, factor analysis, and SEM were used to verify the hypothesis. The results from this study are as follows: first, reliability, empathy, usefulness of service quality significantly impact on Majib app satisfaction except informativeness and mobility; second, review assentation of the usage review characteristics significantly impact on Majib app satisfaction but review usefulness of the usage review characteristics significantly did not influence on Majib app satisfaction; third, smartphone Majib app satisfaction critically influences on reuse intention. Based on these results, current study can contribute to verify useful information is very important antecedent to construct the effective marketing strategy by smartphone app.

Oral Health and Stress of College Women in Some Areas (일부지역 여대생의 스트레스와 구강건강)

  • Kim, Seo-Yeon;Lee, Jae-Ra;Choi, Moon-Sil
    • Journal of dental hygiene science
    • /
    • v.15 no.4
    • /
    • pp.503-508
    • /
    • 2015
  • The purpose of this study was to examine factors related to the oral health by stress in college women. This survey was conducted between June 16, 2014 and July 18, 2014 to investigate the correlation between stress and oral health Data were obtained from 393 women students of 5 colleges in Gwangju and Jeollanam-do. The oral health of college students is related with the stress which has a correlation between oral condition satisfaction(-) and inconvenient(+) of mastication and pronunciation (p<0.01). Also, factors affecting stress are discomfort during mastication and oral state satisfaction and discomfort during mastication. The discomfort during mastication showed the highest stress while the higher status of oral satisfaction showed lower stress (p<0.05). Therefore, college women stress is related with oral health. Colleges should consider developing a program which can appropriately manage and regulate stress to relieve their stress.

Effects of Perceived Autonomy Support on Intrinsic Motivation and Passion for Major students of Security Martial Arts (경호무도 전공자의 지각된 자율성지지가 내재적 동기 및 열정에 미치는 영향)

  • Yang, Jin-Young;Lim, Tae-Hee;Kim, Dong-Hyun
    • Korean Security Journal
    • /
    • no.46
    • /
    • pp.87-112
    • /
    • 2016
  • The purpose of this study was to investigate the influence of perceived autonomy support on intrinsic motivation and passion for major students of security martial arts. The subjects were selected 317 people to security martial arts majors universities in the metropolitan area extraction using a convenience sample. AS autonomy support, intrinsic motivation, and passion by research tools construct validity were utilized for statistical verification. Data were analyzed through descriptive statistics, frequency analysis, exploratory factors analysis, reliability analysis, correlation analysis using the SPSS 21.0 and confirmatory factors analysis and structural equation modeling(SEM) using AMOS 21.0. The results of this study were as follows. First, autonomy support of major students for security martial arts had a positive impact on intrinsic motivation. Second, autonomy support of major students for security martial arts had a positive impact on harmonious passion. Third, autonomy support of major students for security martial arts had a impact on obsessive passion. Forth, intrinsic motivation of major students for security martial arts had a positive impact on harmonious passion. Fifth, intrinsic motivation of major students for security martial arts had a negative impact on obsessive passion. The results of structural equation modeling showed that intrinsic motivation partially mediated the relationship between autonomy support and harmonious passion. And the relationships between autonomy support and obsessive passion were completely mediated by the intrinsic motivation.

  • PDF

The Effect of Service Orientation on the Organizational Effectiveness in Security (경호.경비업체 서비스 지향성이 조직 유효성에 미치는 영향)

  • Min, Jae-Ki;Kim, Chang-Ho
    • Korean Security Journal
    • /
    • no.14
    • /
    • pp.141-160
    • /
    • 2007
  • The meaning of this research work lies in providing useful basic resources which can be utilized in the strategic respect of internal marketing by investigating how security employees' quality in relation to service orientation impact on organizational effectiveness. Employees of security in Seoul Gyeonggi region were selected as the subjects of this survey and 234 participants were sampled by Convenience Sampling Method. Resulting data were processed by frequency analysis, exploratory analysis, t-test, one-way ANOVA, correlation analysis, regression analysis using SPSS V11.0 program. The results from these research methods and analyses revealed the followings: First, service leadership which was the sub-variable of the service orientation according to the demographic characteristics revealed significant differences in gender, age; and service encounter, in age, the level of education and monthly income; and the service system, in gender, age and monthly income; and human resources management, in gender, age, the level of education and monthly income. Second, job satisfaction which was the sub-variable of the organizational effectiveness according to the demographic characteristics revealed significant differences in age, the level of education and monthly income; and organizational commitment, in gender, age, the level of education and monthly income. Third, the results from regression analysis of service orientation and organizational effectiveness showed that service leadership, service system, service encounter, which were the sub-variables of service orientation, had significant impacts on job satisfaction, and that service system and human resources management impacted significantly on organizational commitment.

  • PDF

Participation Types of Private Security Guards in Leisure Activities and the Effect of Leisure Constraint on Life Quality (민간경호원의 여가활동 참여유형 및 여가제약이 삶의 질에 미치는 영향)

  • Park, Joon-Ho;Choi, Pan-Am;Jo, Sung-Gu
    • Journal of the Society of Disaster Information
    • /
    • v.7 no.2
    • /
    • pp.161-171
    • /
    • 2011
  • This research puts the purpose in elucidating the effect of participation types of leisure activity and leisure restraints on life quality. To achieve research purpose, questionnaire survey was conducted on 200 subjects who are engaged in private guard companies with ages over 20. Using the collected data, frequency analysis was conducted in order to identify demographic characteristics with SPSS/WIN 17.0V program. In addition, multiple regression analysis was conducted for solving research questions. As a result, sports related participation type had a positive effect on time constraint factor. Meanwhile, hobby related participation type had a positive effect on time and cost constraint, participation type of watching has a positive effect on individual and social constraint. Tour and play related participation type had a positive effect on individual constraint factor. Meanwhile participation type of sociality had a positive effect on individual constraint and hobby factor, but had a negative effect on familial and social constraint. Sports related participation type had a positive effect on social relationship factor. Participation type of watching and play related participation type had a negative effect on family relationship. Finally, time constraint factor had a positive effect on family relationship, and cost constraint factor had a positive effect on entire quality of life. Individual and family constraint factors had a negative effect on leisure relationship factor. Also, social constraint factor had a positive effect on family relationship, but had a negative effect on leisure relationship.

Relationship of Oral Health Education Experience to Oral Health Awareness among Shipbuilding Workers (조선소 근로자들의 구강보건교육경험 유무에 따른 구강보건인식의 차이)

  • Kim, Eun-Joo;Woo, Seung-Hee
    • The Journal of the Korea Contents Association
    • /
    • v.12 no.7
    • /
    • pp.240-246
    • /
    • 2012
  • It's basically meant to make a contribution to the promotion of the oral health of shipbuilding workers and to the improvement of oral health education planning, industrial oral health policy setting and the related system, as it seems that the working environments of shipbuilding workers are very harsh due to the unique characteristics of their working process. The subjects in this study were the workers who were selected by convenience sampling from shipbuilding companies and their subcontractors in South Jeolla Province that numbered 10. The workers were surveyed to determine the relationship between their oral health education experience and oral health awareness, and the findings of the study were as follows: Out of the 310 workers investigated, 89.4 percent had no experience to receive oral health education, those who had no experience to receive oral health education fell behind in terms of oral health knowledge, awareness, concern and perception of oral health importance, and there was close correlation among their oral health knowledge, awareness, concern and perception of oral health importance. Those without oral health education experience cited lack of opportunities as the reason, the workers preferred to receive education about the prevention and treatment of dental caries, and their favorite educational method was lectures given by dentists, the workers who had oral health education experience had a more intention to receive oral health education than the others who hadn't.