• Title/Summary/Keyword: Logit model

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Risk Factors for Thyroid Cancer in Females Using a Logit Model in Lahore, Pakistan

  • Asif, Faiza;Ahmad, Muhammad Riaz;Majid, Arshia
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.15
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    • pp.6243-6247
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    • 2015
  • Background: Thyroid cancer (TC) is a more common endocrine malignancy in females and is a major cause of death in developing countries. Therefore the aim of this study was to explore possible risk factors of thyroid cancer in females of Pakistan. Materials and Methods: This study covered 232 females, including 127 (54.7%) cases and 105 (45.2%) controls, from the INMOL Hospital and Sheikh Zayed Hospital, Lahore. Different risk factors were explored by the descriptive and inferentially statistics. Odds ratios and 95% confidence intervals for different risk factors were computed using logistic regression. Results: The results showed six risk factors, marital status, family history of thyroid cancer, iodine in the diet, oxidative stress, fast food and fried food, to demonstrate positive significant links to thyroid cancer (odds ratios and 95% confidence intervals of :2.152, 1.104-4.198; 2.630, 1.416-4.887; 2.391, 1.282-4.458; 4.115, 2.185-7.750; 3.656, 1.851-7.223; 2.357, 1.268-4.382; and 2.360, 1.199-4.643, respectively). Conclusions: The Oxidative stress, marital status, family history of cancer, fast food, use of iodine diet and fried food are the risk factors of thyroid cancer in females.

study on the resistance of the transshipment of transport logistics according to the mode choice - focus of cement (물류수송의 환적저항에 따른 수단선택 행태 변화 - 양회 중심으로)

  • Lee, Won-Tae;Kim, Sung-Eun;Kim, Si-Gon;Chung, Sung-Bong
    • Proceedings of the KSR Conference
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    • 2010.06a
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    • pp.1615-1622
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    • 2010
  • Recently, there has been an increase in interest from the aspects of transshipment and connection between the means of transportation. Not only for passengers but also for freight transportation as the need for transportation efficiency is growing while the importance of logistic railway transportation is emerging. The domestic freight transportation is carried out by roads, railroads, ships, and port. However, as other means of transportation, except road, is impossible for Door to Door Service, multimodal transportation accompanied by road transportation is carried out. Here, even though 'transshipment' occurs, because of the lack of basic data regarding this, it is difficult to reflect it in the demand forecasting. With respect to the Korean freight O-D, it was very difficult to have equivalent comparison on the competitiveness and availability of transportation services between the point of departure and the final destination. Taking into account the study of implementation of logit model considering the time and cost of transshipment of multimodal transportation and the transshipment resistance value upon selecting means of freight transportation on multimodal transportation was comparatively insufficient. This study consisted of questionnaire targeting shippers, and based on this, transshipment resistance value was calculated by deriving utility function. By doing so, I intend to examine the effect 'transshipment' has on selecting the means of transportation occurring from freight transportation.

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Overemployment of Workers in Penang, Malaysia: An Empirical Analysis

  • Fernandez, Jacqueline Liza;Shiang, Lim Ee
    • The Journal of Asian Finance, Economics and Business
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    • v.4 no.4
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    • pp.17-26
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    • 2017
  • Many workers today encounter the problem of overemployment which occurs when actual working hours exceed preferred or desired working hours. Overemployed workers desire to work fewer hours although this may entail a concomitant decline in earnings. This research is conducted to examine the likelihood of overemployment among employees in a particular state in Malaysia, that is, Penang. This study uses primary data that was collected in a survey encompassing a total of 525 employees in the state. A logit model is used to analyse the relationship between the likelihood of overemployment and various socio-demographic, household and work-related variables. The factors that are significantly related to overemployment are ethnicity, age, education, number of children in the household, occupation, hours of work and control over work schedule. Based on the findings of this paper, it is suggested that policies such as offering part-time jobs or job-sharing options to older workers, implementing family-friendly policies, adopting decent working time measures and strategies that give workers more control over their work schedule are some possible ways to deal with the issue of overemployment.

What Influences Decision on Seasoned Equity Offerings of Listed Vietnamese Companies?

  • LE, Long Hau;NGUYEN, Thi Binh Nhi;PHAM, Xuan Quynh;VUONG, Quoc Duy;LE, Tan Nghiem
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.5
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    • pp.1-7
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    • 2020
  • This paper investigates the determinants on decision to conduct seasoned equity offerings (SEOs) of listed companies on the Ho Chi Minh Stock Exchange in Vietnam. Seasoned equity offerings (SEOs) are defined as the issue of more stocks by a firm to raise more capital after a primary issue. Using panel data collected from audited financial statements of 99 listed companies on the Ho Chi Minh Stock Exchange during 2014-2018, the study employs a logit regression model by fixed effects method to examine factors that affect the decision to implement seasoned equity offerings of those companies. The findings of this study show that profit, revenue growth and company's size have a positively significant impact on the decision, while dividend pay-out ratio negatively significantly influences the equity issuing decision. Furthermore, these results are robust after controlling for the forms of equity offerings, i.e. bonus stocks, stock dividends and rights to buy shares. These findings are consistent with economic theories such as agency theory, pecking order theory, and growth opportunity theory, and also could be explained by the real situations of the Vietnamese stock exchange. This study has important implications for corporate managers, policy makers and investors.

A Study of the Value of Travel Time Reliability (통행시간 신뢰성 가치에 관한 연구)

  • Cho, Hanseon
    • International Journal of Highway Engineering
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    • v.15 no.4
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    • pp.155-165
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    • 2013
  • PURPOSES : Benefits for improvement of travel time reliability obtained from construction of new highways should be considered as a major factor in the feasibility study for highway constructions. The purpose of this study is to develop a method of estimation for the value of travel time reliability. METHODS : Highway type (urban/rural highway) and traffic flow type(interrupted/uninterrupted) was considered to estimate he value of travel time reliability. And Double-bounded Dichotomous Choice among Contingent Valuation Method(CVM) was applied to survey the willingness-to-pay of drivers when travel time reliability is improved. Finally the value of travel time reliability was estimated using the results of survey and logit model. The value of travel time reliability was estimated considering travel objectives, time constraint travel and non-time constraint travel. RESULTS: The value of travel time reliability of business trip is higher than that of non-business trip. The value of travel time reliability of time constraint travel is higher than that of non-time constraint travel. The value of travel time reliability in urban area is higher than that in rural area. CONCLUSIONS: It was concluded that the proposed method in this study is more realistic and proper to estimate the value of travel time reliability because it reflects the situations of time constraint travel and non-time constraint travel.

An Analysis of Demand Elasticity to Facilitate the Use of Public Transportation in the Administrative City (행정중심복합도시 대중교통 이용활성화를 위한 수요탄력성 분석)

  • Kim, Tae-Gyun;Park, Ji-Eun;Lee, Yun-Sang
    • Land and Housing Review
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    • v.9 no.3
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    • pp.9-18
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    • 2018
  • Administrative city has been developed step by step aiming to being a public transport-oriented new city. In spite of its primary goal, administrative city is dominated by car-oriented tansportaion system because the supply of public transportation has not been adequately and timely performed. In this study, we investigate the current situation related to (public) transportation use in administrative city. Also, we examine the issues of traffic system through a survey on residents' consciousness about public transportation use. Additionally, the analysis of demand elasticity according to the change of the conditions of using public transportation and passenger car is conducted for passenger car users. As a result, it is analyzed that as the neighborhood is more stabilized after the completion of development the resistance to the abandonment of passenger car is higher when the tide demand control method is introduced. Therefore, it is concluded that pre-emptive public transportation supply and the management of car demand management are necessary for the activation of public transportation in Administrative city.

Analysis of the Impacts of converged information with tourism and Bus Information Systems on Recreational Bus Travel (관광.BIS 융합정보가 관광.레저 교통수단으로서 버스선택선호도에 미치는 요인분석)

  • Bin, Mi-Young;Jung, Yi-Seok
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.10 no.4
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    • pp.55-64
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    • 2011
  • This study aims to analyze of the impact of converged information with tourism and Bus Information on recreational bus travel. The research has conducted as the following process : A survey was implemented that the user preference behavior as if they were provided a converged information with tourism and bus information on bus usage. As a result, we found that able to using mobile media, having a experience visiting the tourism site, evaluate willingness to pay of the information highly, the 20s age, increasing income variables are concerned with positive relation, and the factors which are using the main mode by auto and having a auto are negative relation on bus usage actively.

Factors Influencing Residents' Support for Tourism Resources of the Cultural Heritage in the Village -The Case of Geomdan-Ri Village, Ulju- (마을 문화유적의 관광자원화가 주민지지에 미치는 영향 -울주 검단리 마을 중심으로-)

  • Son, Ho-Gi;Kim, Sang-Bum;Kim, Kyu-Ho
    • Journal of Agricultural Extension & Community Development
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    • v.17 no.2
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    • pp.347-368
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    • 2010
  • Recently, the interests in historic tourism have been growing. Historic tourism plays a great role in establishing cultural tradition in modern explanation on them, while concerning about it's increasing because of the meaning distortion in the process of restoration. In this context, we should research in case of tourism resource in Geomdan-ri. Historic tourism considering both of Development and Conservation can make interest about historic culture like that of Geomdan-ri. We understand that the making tourist attractions like historic culture resource of Geomdan-ri equipped with unique and educational facilities would give experience the living in prehistoric age for tourist. The significance of this study was as follows. It is essential that not only raising the part of positive but also minimizing that of negative based on understanding of resident recognition for effect of society, culture, environment and economics of region by tourist development plan.

Interorganizational Networks of the Self-supporting Service Organizations in Chonju Area (전주지역 자활 관련 조직들의 네트워크 구조에 관한 연구)

  • Hong, Kyung-Zoon
    • Korean Journal of Social Welfare
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    • v.49
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    • pp.7-33
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    • 2002
  • This study analyse interorganizational networks of the self-supporting service organizations using data on the 31 organizations in Chanju area. Interorganizational networks are operationalized in two ways: conference network and referral network. First, this study attempt to examine the characteristics of interorganizational networks of the self-supporting service organizations. Using block model, I can capture some of the structural features of interorganizational networks. Major findings of block modeling are as follows: (1) Public organizations are more inactive to make a connect with other organizations. (2) Most of organizations incline to make a connect with same kind organizations. Namely, employment service organizations incline to flock together, and social welfare organizations are also much the same. Second, this study attempt to examine the determinants of interorganizational networks of the self-supporting service organizations. Relations between pairs of organizations are modeled as a function of dyadic level covariates in accordance with resource dependence, transaction cost, and organizational domain theory. Measure of informal ties between organizations are also included as covariates. Applying logit and tobit regression methods, this study reveals that most variables have effects on the dyadic relations of organizations. Through this empirical analysis, I can suggest policy implications for the self-supporting programs in Korea.

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Factors Associated with the Health Promotion Activities of the Korean Elderly (노인의 건강증진행위 실천과 관련요인)

  • Lee, Jung-Chan;Park, Jae-San;Kim, Gwi-Hyun
    • Korean Journal of Health Education and Promotion
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    • v.27 no.2
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    • pp.121-139
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    • 2010
  • Objectives: The purpose of this study was to identify the health promotion activities of the elderly Korean aged 65 or older and to examine the related factors associated with the health promotion activities. Methods: Data were obtained from 2008 Social Statistics Survey of Korea National Statistical Office of 6,207 people aged 65 or older. We measured the socio-demographic characteristics, physical health status, social health status, and health promotion activities. Statistical analyses were employed through the $X^2$-test and Odds ratio using Logit Model. Results: In our study, health promotion activity practice rates were varied among the socio-demographic characteristics, physical and social health status. Our findings also support that better socio-demographic and physical health status explain the higher practice rates of health promotion activities. In addition, the higher social health status was associated with better practice rates of health promotion activities. Conclusion: We found that the health promotion activities of the elderly could be encouraged by better socio-demographic status and physical and social health status. To better accomplish the health promotion for the elderly in our community, policy-makers should need careful political deliberation for executing health promotion services considering the distinctions of programme and target groups.