• Title/Summary/Keyword: Geographic factors

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Socioeconomic Predictors of Diabetes Mortality in Japan: An Ecological Study Using Municipality-specific Data

  • Okui, Tasuku
    • Journal of Preventive Medicine and Public Health
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    • v.54 no.5
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    • pp.352-359
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    • 2021
  • Objectives: The aim of this study was to examine the geographic distribution of diabetes mortality in Japan and identify socioeconomic factors affecting differences in municipality-specific diabetes mortality. Methods: Diabetes mortality data by year and municipality from 2013 to 2017 were extracted from Japanese Vital Statistics, and the socioeconomic characteristics of municipalities were obtained from government statistics. We calculated the standardized mortality ratio (SMR) of diabetes for each municipality using the empirical Bayes method and represented geographic differences in SMRs in a map of Japan. Multiple linear regression was conducted to identify the socioeconomic factors affecting differences in SMR. Statistically significant socioeconomic factors were further assessed by calculating the relative risk of mortality of quintiles of municipalities classified according to the degree of each socioeconomic factor using Poisson regression analysis. Results: The geographic distribution of diabetes mortality differed by gender. Of the municipality-specific socioeconomic factors, high rates of single-person households and unemployment and a high number of hospital beds were associated with a high SMR for men. High rates of fatherless households and blue-collar workers were associated with a high SMR for women, while high taxable income per-capita income and total population were associated with low SMR for women. Quintile analysis revealed a complex relationship between taxable income and mortality for women. The mortality risk of quintiles with the highest and lowest taxable per-capita income was significantly lower than that of the middle-income quintile. Conclusions: Socioeconomic factors of municipalities in Japan were found to affect geographic differences in diabetes mortality.

Implementation of Management System for Contamination Vulnerability Calibration of the Ground Water by an Object-oriented Geographic Data Model (객체지향 지리 데이터 모델에 의한 지하수의 오취약성 분석을 위한 관리시스템 구현)

  • Lee, Hong-Ro
    • Journal of the Korean Association of Geographic Information Studies
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    • v.6 no.2
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    • pp.101-112
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    • 2003
  • This paper designs and implements the management system that can calibrate the contamination vulnerability of the ground water, using an object oriented data model. Geographic-objects are specified by features extracted from an applicable geographic domain, and geographic-fields are defined by chemical factors extracted from each driven water. To show the topological relationships among the geographic-objects and the geographic-fields, this paper attach the weight and the ratio of the drastic model to chemical factors represented on the land use digital map and the ground water digital map. The geographic feature class, administrative boundary class, land use class and driven water class consist of a class composition hierarchy for evaluating the convenient contamination vulnerability calibration with spatial relationships among the well objects. Therefore, this management system for evaluating the contamination vulnerability can also contribute to the application of other natural environments.

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Analysis of the Relationships between Esophageal Cancer Cases and Climatic Factors Using a Geographic Information System (GIS): a Case Study of Ardabil province in Iran

  • Ahari, Saeid Sadeghieh;Agdam, Fridoon Babaei;Amani, Firouz;Yazdanbod, Abbas;Akhghari, Leyla
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.3
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    • pp.2071-2077
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    • 2013
  • Esophageal cancer is a mjaor health problems in many parts of the world. A geographical information system (GIS) allows investigation of the geographical distribution of diseases. The purpose of the present study was to explore the relationship between esophageal cancer and effective climatic factors using GIS. The dispersion distribution and the relationship between environmental factors effective on cancer were measured using Arc GIS. The highest degree of spread was in Germi town and the least was in Ardabil city. There was a significant relationship between effective environmental factors and esophageal cancer in Ardabil province. The results indicated that environmental factors probably are influential in determining the incidence of esophageal cancer. Also, these results can be considered as a window to future comprehensive research on esophageal cancer and related risk factors.

Life history and reproduction of the amphipod Synchelidium trioostegitum (Crustacea, Oedicerotidae) in a temperate sandy shore, southern Korea

  • Hwan, Yu-Ok;Rip, Seo-Hae
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2001.05a
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    • pp.457-458
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    • 2001
  • Reproductive and life history patterns of marine amphipods are influenced by a variety of biotic and abiotic factors. Those factors may vary on local scales or along geographic patterns and result local or geographic variations in reproduction and life history. Although many studies in life history of amphipods were carried out at various habitats, limited information on the life history and reproduction at a shallow sandy shore 〈 1 m depth is available (Bear and Moore, 1996). (omitted)

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GIS-based Ocean Informatics for Integrated Coastal Management (연안역통합관리를 위한 GIS 기반 해양정보학)

  • Kim, Jong-Kyu
    • Journal of Fisheries and Marine Sciences Education
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    • v.16 no.2
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    • pp.227-237
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    • 2004
  • Recently development trends in information technology expand the activity boundaries for human living beyond coastal zones. These rapid changes of paradigm are stimulating scientists and strategists to be encouraged in making adequate model for marine geographic information system (MGIS) and their applications. Coastal zones are places which are affected by many factors, such as water quality, tide, wave, atmosphere, population, industry, etc. Therefore information related to the coast has to be integrated and analyzed for managing it efficiently. GIS-based Ocean Informatics is suited for those purposes and used in the study for establishing and managing coastal geographic and environmental information system. This paper reviews the properties of ocean and coastal spaces, then defines some MGIS related terminologies for clarifying the scope of MGIS boundaries. In this study, coastal geographic information is established by digital geographic information and digital terrain information. Digital coast chart having information on digital chart and map can merge and analyze various coastal information and can be a useful tool for the coastal integrated management.

Small Area Variation (소규모 지역간 의료이용의 차이에 관한 문헌고찰)

  • 조우현;김한중
    • Health Policy and Management
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    • v.1 no.1
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    • pp.42-53
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    • 1991
  • Analysis of health care utilization is very important for health care policy development. Traditional studies of health care utilization were focused on measuring the level of health care utilization and on analyzing the determinants of health care utilization in the defined areas and populations. But there were some limitations in comparing the health care utilizations rates in traditional studies because so many factors were to be considered. Small area analysis is a method used to demonstrate substantial variations in health care utilization with popualtion-base use rates among similar geographic areas. This review discusses the methods, magnitude and trend of geographic variations, factors influencing small area variations, and makes suggestions for further study. Finally, the article discusses the necessity and feasibility of small area analysis in Korea.

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A Risk Analysis of Road Slopes Using GIS (GIS를 이용한 도로 사면의 위험성 분석)

  • Kim , Yong-Seong
    • Journal of The Korean Society of Agricultural Engineers
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    • v.46 no.5
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    • pp.117-127
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    • 2004
  • A risk analysis on the cutting slope of roads near Cheongju area was carried out with the data from geological map, field investigation, and laboratory test and with the Geographic Information System. A risk analysis method on the cutting slope of road using the Geographic Information System was developed with the data from geological map, field investigation and laboratory tests. In the GIS, road factors which are safety factor, class of road, slake index, slope-protection works, and height of slope in the cutting slopes are classified into some ranks, and their weighting factors were taken into account. This method can be applied effectively to a road management.

A Study on Space Recognition Change of the High School Students according to Geographic Information Quantities - Focused on Factors Influencing the Land Value - (지리 정보량에 따른 고등학생의 공간 인식 변화에 대한 연구 - 지가 형성 요인을 중심으로 -)

  • Shin, Yeong-Jae
    • Journal of the Korean association of regional geographers
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    • v.17 no.4
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    • pp.443-458
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    • 2011
  • The purpose of this study is to research space recognition change of the high school students according to geographic information quantities, focused on Factors Influencing the Land Value. The region of case study was some places of Songtan Special Tourism Zone, which responding students were unfamiliar with. The results are as follows. First, through the results of analysing 'the highest valued standard land and choice reasons' in two ㄴregions of the old town and the new town, it is perceived that the relative factor of land is more important than the absolute factor as the factors influencing the land value of the highest valued standard land. Second, there are students' recognition differences in the choice reasons of the highest valued standard land of two regions which have different characteristics. Third, though in the same region, recognitions about factors influencing the land value change according to geographic information quantities, and as students' knowledge about geographic information increases, the choice rate of the highest valued standard land increases. Lastly, it is perceived that there is a facility which has a decisive effect on formating the land value of a certain region.

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A Study on Standardization of Marine Geographical Names in Korea (우리나라 해양지명 표준화에 관한 연구 - 해양지명 명명 사례조사를 중심으로 -)

  • Lim, Young-Tae;Choi, Yun-Soo;Yoon, Ha-Su
    • Spatial Information Research
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    • v.19 no.6
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    • pp.55-65
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    • 2011
  • All of area we live in has its own geographic names. Even small size of rock under the water has its own name. They are called "marine geographic names". Marine geographic names can be classified two categories. One is a proper name; the other is an attribute name. Rocks, reefs and banks referred in the introduction, belong to the category of the attribute name. And there are certain standards to name marine geographic things. In this study, we conducted a case research with the aims to figure out how we name and use those three features that we consider dangerous factors for marine navigation. This study also focused on differences between the methods used to classify attributes of marine geographic names in the past and today. In addition, it reviewed and analyzed marine geographic names used by Korea Hydrographic and Oceanographic Administration (KHOA) on its own Nautical charts and conducted a case research on marine geographic names notified by Korean Committee on Marine Geographic Names. Based on research and analysis, this study presents future methods regarding marine geographic names standardization.

Topographic Characteristic Analysis in Beacon Mounds Using GIS Techniques (GIS기법을 이용한 봉수대의 지형특성분석)

  • Han, Ki-Bong;Lee, Ji-Young;Kang, In-Joon
    • Journal of Korean Society for Geospatial Information Science
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    • v.17 no.4
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    • pp.75-80
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    • 2009
  • The Beacon Mounds play a important role in defence and communication extending from the period of the Three States to the period of Chosun. About the research of beacon mounds have focused on investigation in old literature. This research analyzed geographic factors such as altitude, cross section, distance and visible distance affect in selecting location of beacon mounds. And it was presumed how each beacon mound geographic characteristics was considered in selecting location of beacon mounds. As a result, it is presumed that communicating among beacon mounds and watching the coast were affected by geographic characteristics and selecting location of beacon mounds was considered by several geographic factors.

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