• Asian Pacific Journal of Cancer Prevention
• /
• 제17권3호
• /
• pp.1589-1593
• /
• 2016

Opisthorchis viverrini (OV) liver flukes are common parasites found in central and southern Laos and constitute a major public health problem in the country. Laos people continue to have the habit of extensively consuming raw or half-cooked fish which are intermediate hosts. This study aimed to determine the prevalence and factors associated with OV infection in the population of Thakek district, Khammouane Province. This cross-sectional analytic study covered 237 subjects who filled out structured questionnaires. Fecal examination for OV infection was performed by Kato's thick smear method. Data analysis was carried out using STATA Version 10.0. Multiple logistic regression was applied. The results showed that the infection rate of OV was 54.8%. Factors associated with OV infections were gender, a habit of defecation in fields and raw fish (goi bplaa dip) consumption. Opisthorchiasis and associated cholangiocarcinoma development thus appear to remain as important concerns in Laos.

• 인문언어
• /
• 제6권
• /
• pp.265-291
• /
• 2004

The main purpose of this paper Is to analyze the characteristics of the Korean language used as a major communication means within the Korean community in Chenguoz District of Harbin, Heirungjiang Province, China, in terms of its phonology, morphology and syntax. The study focuses on how a variety of languages and dialects including Chinese, the Standard Chinese Korean adopted as a means of teaching in Korean schools, and Kyongsang Dialect of Korean have influenced the language of the community. It also deals as background information with the history of the community, the attitude of the community members toward Korean and Chinese, and their proficiencies of Korean and Chinese, to obtain the general picture of the bilingualism of this community. This specific region was studied since this region and most of the Korean communities in the Heirungjiang province were formed by descendents of the immigrants from the southern provinces of the Korean Peninsula, which allows the comparison between the language used today and the language their ancestors used before moving to this area. Due to the industrialization and innovation brought about by the opening of the Chinese society, the fast outward flow of youths to urban areas, and greater assimilation threats from the embedding Chinese culture, we are not too sure if the Korean language will continue to be used in the future. Given these circumstances, we consider this research most opportune in that it provides a look into the Korean community that developed its distinctive culture and language within an isolated cultural environment.

• 인문언어
• /
• 제6권
• /
• pp.241-263
• /
• 2004

The main purpose of this paper is to analyze the characteristics of the Korean language used as a major communication means within the Korean community in Chenguoz District of Harbin, Heirungjiang Province, China, in terms of its phonology, morphology and syntax. The study focuses on how a variety of languages and dialects including Chinese, the Standard Chinese Korean adopted as a means of teaching in Korean schools, and Kyongsang Dialect of Korean have influenced the language of the community It also deals as background information with the history of the community, the attitude of the community members toward Korean and Chinese, and their proficiencies of Korean and Chinese, to obtain the general picture of the bilingualism of this community This specific region was studied since this region and most of the Korean communities in the Heirungjiang province were formed by descendents of the immigrants from the southern provinces of the Korean Peninsula, which allows the comparison between the language used today and the language their ancestors used before moving to this area. Due to the industrialization and innovation brought about by the opening of the Chinese society, the fast outward flow of youths to urban areas, and greater assimilation threats from the embedding Chinese culture, we are not too sure if the Korean language will continue to be used in the future. Given these circumstances, we consider this research most opportune in that it provides a look into the Korean community that developed its distinctive culture and tanguage within an isolated cultural environment.

• 동력기계공학회지
• /
• 제18권5호
• /
• pp.137-143
• /
• 2014

An investigation on lightning characteristics and damage to wind turbines was performed on Jeju and Gangwon regions. The lightning data from January 2010 to September 2013 detected by IMPACT ESP were collected and analyzed in detail. Hangyeong and Seongsan wind farms of Jeju province and Taebaek, Changjuk, Taegisan and Gangwon wind farms of Gangwon province were selected for this study. Lightning rates and lightning damage events at the six wind farms were compared with each other. Lightning maps for the two regions were drawn using lightning frequency data. As a result, lightning frequency of Gangwon region was higher than that of Jeju region, while lightning strength of Gangwon was weaker than that of Jeju. Lightning rates were assessed to be good for all of the six wind farms. No lightning damage to wind turbines occurred at the two wind farms of Jeju, while some lightning damage to wind turbines took place at the four wind farms of Gangwon.

• KIEAE Journal
• /
• 제6권2호
• /
• pp.19-26
• /
• 2006

Recently, building requirements have been saturated and residents are demanding a variety of building exterior materials faced with roofs, walls, windows and doors. On the other hand, when building exterior materials are exposed with ultra violet rays during some periods, these will be influenced deterioration effects like discolorations, exfoliations and cracks and will be needed exchange of materials. In this study, main 17-provinces of Korea were collated climate data and counted the computation results with an assumption formula for calculating ultra violet rays amounts. Lastly, ultra violet rays map of Korea was made by the counted data and was considered tendencies. Accordingly, in the phase of design the designer can select the appropriate exterior materials which have durabilities and resistances of ultra violet rays. So hereafter this study can be a foundation study to sustain building exterior materials with ultra violet rays damages. Below is the summary of Korean ultra violet rays tendency. 1. Ultra violet rays during 1 year is from about $180MJ/m^2$ to about $210MJ/m^2$. 2. Southern province ultra violet rays is higher than northern province. 3. Annually counted rays is higher and higher.

• The Plant Pathology Journal
• /
• 제18권6호
• /
• pp.342-344
• /
• 2002

Apple scar skin viroid (ASSVd) has been one of the most destructive diseases in Korean apple orchards. Symptoms of the scar skin viroid disease were detected in various apple cultivars, namely, Sansa, Fuji, Chukwang, Miki-Life, Hongro, and Songbongeum cultivated in the southern part of Korea. The RNA molecules were extracted from the apples bearing dapple apple symptoms with the application of CF-11 RNA extraction method. The purified RNAs were used for the synthesis of cDNA with RT-PCR. The PCR products were cloned and sequenced. The viroid RNA molecules from the six different cultivars bearing the dapple symptos showed the same nucleotide sequences as that of the Korean strain of ASSVd（ASSVd-K). ASSVd-K was detected from apple orchards in Kunwi, Sangju, Uiseong, Yeong-yang, Andong, and Youngduk in Gyeongbuk Province in 2001, and in Muju in Jeonbuk Province in 2002. As the viroid disease could be propagated vegetatively, it can be widely transmitted gradually in Korea.

• The Plant Pathology Journal
• /
• 제26권4호
• /
• pp.321-327
• /
• 2010

We performed diagnostic PCR assays and a phylogenetic analysis using partial sequences of TEF1 (translation elongation factor-1) to determine the trichothecene chemotypes and genetic diversity of F. graminearum isolates from maize and rice samples collected in 2009 in Korea. PCR using a species-specific primer set revealed a total of 324 isolates belonging to the putative F. graminearum species complex. PCR with trichothecene chemotypespecific primers revealed that the nivalenol (NIV) chemotype was predominant among the fungal isolates from rice (95%) in all provinces examined. In contrast, the predominant chemotype among the corn isolates varied according to region. The deoxynivalenol (DON) chemotype was found more frequently (66%) than the NIV chemotype in Gangwon Province, whereas the NIV chemotype (70%) was predominant in Chungbuk Province. Phylogenetic analysis showed that all DON isolates examined were clustered into lineage 7, while the NIV isolates resided within lineage 6 (F. asiaticum). Compared with previous studies, the lineage 6 isolates in rice have been predominantly maintained in southern provinces, while the dominance of lineage 7 in maize has been evident in Gangwon at a slightly reduced level.

• 지질공학
• /
• 제13권2호
• /
• pp.207-225
• /
• 2003

우리나라의 광역단열도가 작성되었다. 단열들에 대해 장미그림을 그려보면 북북동, 북서, 서북서의 세조의 우세 배향을 보여준다. 단열의 밀도는 태백산 광화대 지역이 가장 높게 나타나고, 태백산지역에서 서울까지 지역, 문경-보은탄전지역과 진안지역, 충남탄전지역, 고령-함안지역, 양산단층 및 가음단층지역 등이 밀도가 높은 편이다. 사천-지리산-전주선의 서남부 지역이 밀도가 가장 낮다. 지질별로는 조선누층군, 평안누층군, 대동누층군, 경상누층군 등 비변성 퇴적암 지역이 선캠브리아 기반암과 쥬라기 화강암 분포지역에 비해 단열 발달 밀도가 높다. 또 쥬라기 화강암에 비해 선켐브리아 기반암에서 단열발달 빈도가 상대적으로 높다. 우리나라의 광역단열을 길이를 토대로 $F_1,{\;}F_2,{\;}F_3,{\;}F_4$의 4등급으로 분류하였다. 등급별 단열의 배향은 자기유사(self-similar)하다고 하겠고 단열의 길이에 대한 누적 수 사이엔 누승법칙(power law) 분포를 지시한다. 지구조 구역별로 볼 때 단열은 경기육괴 지역과 경상분지 지역에서는 $F_1$에서부터 $F_4$까지 모든 등급 단열이 발달하나 그 외 지역은 F$_1$ 단열이 거의 발달되지 않는다. 양산단층을 포함한 대규모 단열들은 대부분 일회의 단층운동에 의해 지금의 연장을 가졌다기보다는 다중변형작용을 통한 변위의 집적으로 지금과 같은 길이를 이루었다고 보아야할 것이다. $F_1$ 단열을 제외한 다른 등급의 단열은 우리나라 전지역을 통해 고르게 발달한다고 볼 수 있다. 또 단열의 밀도는 옥천비변성대에서 가장 높게 나타나고 충남분지와 경상분지도 비교적 높다.

• 대한의생명과학회지
• /
• 제4권2호
• /
• pp.113-120
• /
• 1998

국내에서 채집한 진드기의 라임병 및 ehrlichiosis 원인체 보균 상태를 조사하기 위하여 총 516마리 (Ixodes spp. 22마리 , Haemaphysalis spp. 494마리)의 ixodid 진드기를 봄과 가을에 걸쳐 강원도 고산지대 일원에서 채집하였다. 수집한 진드기에서 DNA를 추출·정제한 후 추출한 DNA를 template로 이용하여, Borrelia burgdorferi sensu lato 및 Ehrlichia spp.에 특이하게 반응하도록 제작한 primer를 이용한 중합효소연쇄반응 (polymerase chain reaction, PCR)을 실시하였으며, 이 결과를 oligonucleotide probe를 사용한 southern blotting을 통하여 다시 확인하였다. 총 516마리의 진드기중 B. burgdorferi sensu lato DNA 양성인 진드기는 68 (13.2%)마리 (B. burgdorferi sensu stricto, 2； B. afzelii, 1; B. garinii, 33； B. tanukii, 8； B. turdae, 4)로 나타났으며 이 중 37 (7.2%)마리의 진드기는 southern blot analysis에서도 양성으로 확인되었다. 또한 101 (19.2%)마리의 진드기가 Ehrlichia spp.에 대한 PCR에서 양성이었으나, 이들 중 25 (4.8%)마리만이 southern blot analysis에서 양성으로 확인되었다. 그러나 사람의 병인체로 추정되는 human granulocytic ehrlichiosis (HGE) agent DNA를 보균한 진드기는 확인되지 않았다. 한편 라임병균과 ehrlichiosis원인체를 동시에 보균한 것으로 밝혀진 진드기가 3마리에서 (0.6%) 확인되어, 국내에서도 진드기 교상시 이들 두 가지 열성질환이 동시에 감염될 가능성이 있는 것으로 사료됨으로 진드기 매개성 열성질환에 대한 적절한 진단법 등을 보다 체계적으로 연구하여야 할 것으로 판단된다.

• 한국지역지리학회지
• /
• 제3권1호
• /
• pp.1-12
• /
• 1997

본 연구는 전국의 64개 관측지점을 대상으로 $1972{\sim}1995$년의 자료를 해마다 $K{\ddot{o}}ppen$ 구분방법에 적용시켜 기후 특성을 고찰하였다. 우리나라의 기후는 Cfa Cwa Cwb Dfa Dwa Dwb의 연후형 으로 구성되고, Cwa Dwa형의 출현빈도가 전체의 95%를 점한다. Cwa형의 출현은 대부분의 남부 지방 동사면 제주도에서 우세하고, Dwa형은 영서 경기 복동부에서, Cfa형은 울릉도에서 탁월하게 나타난다. 이런 우세지역은 안정된 기후지역을 형성하지만 다양한 기후형이 출현하는 남부 진방의 북부와 중부 지방의 남부는 C와 D형이 상접하는 경계이므로 불안정 기후지역을 이룬다. 또한 Cwa형이 가장 우세했던 1990년대 전반기에는 C D형의 경계선이 중부 내륙 지방에 위치하였고, Dwa형이 가장 탁월했던 1980년대 전반기에는 C D형의 경계선이 남부 지방의 중위에 위치하기도 하여 해에 따라서 연후지역의 범위가 변한다. 주요 연후형의 경년변화에서 Cwa형은 증가경향을 보이지만 Dwa형은 감소추세를 나타낸다. Cwa 연후지역의 확장추세는 1970년대 전반기와 1980년대 후반기 이후 최근까지 남부 지방을 중심으로 계속되고, 1980년대 전반기에 중부지방에서 우세했던 Dwa 연후지역은 최근까지 축소되고 있다.