• Title/Summary/Keyword: Geographical Distribution

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Geographical Distribution and Soil Characteristics of Elaeagnus Plants in Korea (한국산 보리수나무속 식물의 분포 및 생육지 토양 특성)

  • You, Young-Han;Kim, Kyung-Bum;An, Chung-Sun;Kim, Joon-Ho;Song, Seung-Dal
    • The Korean Journal of Ecology
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    • v.17 no.2
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    • pp.159-170
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    • 1994
  • The geographical distribution and soil characteristics of Korean Elaeagnus plants were investigated by literatures, field survey and soil analysis. Deciduous E. umbellata was distributed throughout the Korean peninsula including western and southern islands. Distribution area of evergreen Elaeagnus plants was classified into three groups; E. macrophylla and E. glabra belonged to group l occurring in the southern, western and eastern islands; E. submacrophylla to group 2 occurring in the southern and western islands; E. maritima and E. ankaii to group 3 in the southern islands only. Deciduous E. umbellata appeared euryeciously from poor soil to rich one, whereas evergreen Elaegnus plants appeared stenoeciously in haline soil near coast.

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ON ACCESSORY CHROMOSOMES IN SECALE CEREALE I. Frequency and geographical distribution of plants with accessory chromosomes in Korea (한국산 호밀의 부속염색체의 출현빈도와 지리적 분포)

  • 이웅직
    • Journal of Plant Biology
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    • v.8 no.4
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    • pp.1-6
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    • 1965
  • Cytological observations were carried out to investigate the frequencies and geographical distribution of accessory chromosomes in rye in Korea. (1) All the 41 strains of rye investigated were found to have accessory chromosomes and the frequencies of accessories are ranged from 2 to 73.3%. (2) The frequency ranging from 30 to 40% was predominant and it included 13 different strains. (3) The edaphic factor seemed to play more marked role than the climatic factor in determining geographical distribution of accessories in rye in Korea. (4) Breakages of A-chromosomes into two fragments were observed in 11 plants. This phenomenon may throw some light on possible orgin of accessory chromosomes in rye.

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A Systematic Study on the Paguroidea (Crustacea: Decapoda) in South Korean Water: Checklist and Geographical Distribution (한국산 집게상과(갑각아강: 십각목)의 분류학적 연구: 종목록 및 지리적 분포)

  • Jung, Jibom;Park, Jin-Ho;Kim, Won
    • Ocean and Polar Research
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    • v.40 no.3
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    • pp.145-160
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    • 2018
  • The Paguroidea is an important group in terms of marine biodiversity. In Korea, paguroids have been studied by many taxonomists and recently we conducted comprehensive taxonomic studies on hermit crabs from the southern part of the Korean Peninsula. As a result, a checklist of 61 species of Paguroidea in South Korean water with their geographical distribution was prepared. Remarks on taxonomy, geographical distribution, and the Korean scientific names of each applicable species were also provided.

The Distribution of Salt Contamination with the Influence of Geographical Condition (지리적 영향에 따른 염해 오손물질의 분포에 관한 연구)

  • 최남호;국연호;조성인;박강식;한상옥
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2000.07a
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    • pp.695-698
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    • 2000
  • This paper present the result of the investigation, the distribution of salt contamination with the influence of geographical condition. To get the ESDD data, a conventional brush washing method was adapted, and IC(ion chromatography) was used to measure the quantity of anions, such as Cl$\^$-/ and SO$_4$$\^$2-/. And we make an analysis on the distribution of salt contamination with the increase of distance from shore. With 10 month ESDD data, we seek the 95% ESDD value with interpolation method. With these analyses, we had obtained the formulation concerned with the distance from sea. And could know the composition of contamination.

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Epidemiology of patients with snake bite or envenomation in emergency department: NEDIS (National Emergency Department Information System) (국내 응급 센터의 뱀교상 환자의 특징: 국가응급의료정보망)

  • Serok Lee;Woochan Jeon
    • Journal of The Korean Society of Clinical Toxicology
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    • v.20 no.2
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    • pp.45-50
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    • 2022
  • Purpose: This study utilizes the NEDIS (National Emergency Department Information System) database to suggest a predictive model for snakebite and envenomation in Korea by analyzing the geographical distribution and seasonal variation of snakebite patients visiting the ER. Methods: This was a retrospective study on snakebite patients visiting the ER using the NEDIS database from January 2014 to December 2019. The subjects include patients with the KCD (Korea Standard Classification of Disease) disease code T63.0 (Toxic effect of contact with snake venom). Geographical location, patient gender, patient age, date of ER visit, treatment during the ER stay, and disposition were recorded to analyze the geographical distribution and seasonal variation of snakebite patients in Korea. Results: A total of 12,521 patients were evaluated in this study (7,170 males, 54.9%; 5,351 females, 40.9%). The average age was 58.5±17.5 years. In all, 7,644 patients were admitted with an average admission time of 5.04±4.7 days, and 2 patients expired while admitted. The geographical distribution was Gyeongsang 3,370 (26.9%), Cheonra 2,692 (21.5%), Chungcheong 2,667 (21.3%), Seoul Capital area 1,999 (16.0%), Kangwon 1,457 (11.6%), and Jeju 336 (2.7%). The seasonal variation showed insignificant incidences in winter and higher severity in spring and summer than in fall: winter 27 (0.2%), spring 2,268 (18.1%), summer 6,847 (54.7%), and fall 3,380 (27.0%). Conclusion: Patients presenting with snakebites and envenomation in the emergency room were most common in the Gyeongsang area and during summer. The simple seasonal model predicted that 436 snakebites and 438 envenomation cases occurred in July and August. The results of this study can be applied to suitably distribute and stock antivenom. Appropriate policies can be formed to care for snakebite patients in Korea.

Spatial Distribution Characteristics of Financial Industries and the Relationships with Socio-economic Variables: The case of the Seoul Metropolitan Area (금융산업의 분포특성 및 사회.경제적 변수와의 관계 분석: 수도권 지역을 사례로)

  • Moon, Eun Jin;Lee, Keumsook
    • Journal of the Economic Geographical Society of Korea
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    • v.16 no.3
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    • pp.512-527
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    • 2013
  • This study examines the spatial distribution characteristics of financial industry which has been a necessary service for contemporary urban life. In particular, we analyze the spatial distribution patterns of money lending business which is considered with informal financial services as well as the spatial distribution patterns of banks which are representative of the institutional financial services. For the purpose, their density distribution patterns are explored by Kernel density analysis for both financial services in first. Moran's I coefficients are estimated for these two financial services to clarify the distintion in their geographical concentration patterns. The results of spatial autocorrelation analysis show stark differences between the center city and outskirts of the Seoul metropolitan area. Multivariate regression models are developed to explain the relationships between the spatial distributions of financial services and geographical variables. Finally, we discuss financial exclusion problem in the Metropolitan Seoul based on these spatial distribution characteristics.

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Analysis of Relationships between Altitude and Distance from Volcano with Stomach Cancer Incidence Using a Geographic Information System

  • Amani, F;Ahari, S Sadeghieh;Barzegari, S;Hassanlouei, B;Sadrkabir, M;Farzaneh, Esmaeil
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.16
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    • pp.6889-6894
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    • 2015
  • Gastric cancer (GC) is the fifth most common cancer in the world, with a wide variation in incidence rates across different geographical areas. In Iran GC is the most common cancer in males and it is reported to be the third most prevalent after breast and colorectal in females. 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 gastric cancer and effective climatic factors using GIS. The dispersion distribution and the relationship between environmental factors effective on cancer were measured using Arc GIS. Of all cases, 672 (73.8%) were in males with a sex ratio of 3 to1. The highest incidence by cities was seen in Namin with 137.5 per 100,000. The results of this study showed that the distribution of GC around the Sabalan volcanic mountain was significantly higher than other places in the same province. These results can be considered as a window to future comprehensive research on gastric cancer.

Geographical Distribution of Physician Manpower by Specialty and Care Level (의사인력의 지역별 분포 -전문과목과 진료수준을 중심으로-)

  • Yu, Seung-Hum;Jung, Sang-Hyuk;Cheon, Byung-Yool;Sohn, Tae-Yong;Oh, Hyohn-Joo
    • Journal of Preventive Medicine and Public Health
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    • v.26 no.4 s.44
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    • pp.661-671
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    • 1993
  • In order to compare the geographical distribution of physician by level of medical care and specialty, a log linear model was applied to the annual registration data of the Korean Medical Association as of the end of December, 1991 which was supplemented from related institutions and adjusted with relevant sources. Those physicians in primary and secondary care institutions were not statistically significantly unevenly distributed by province-level catchment area. There were some differences in physician distribution among big cities, medium and small-sized cities, and counties; however, those physicians for primary care level were equitably distributed between cities and counties. Specialties for secondary care physicians were less evenly distributed in county areas than in city areas, and generalists are distributed more evenly in cities and counties than in big cities. There is a certain limitation due to underregistration in the annual physician registration to the Korean Medical Association; however, the geographical distribution of physicians has been improved quantitatively. It is strongly suggested that specialties and the level of medical care should be considered for further physician manpower studies.

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