• 제목/요약/키워드: Information Ecology

검색결과 1,572건 처리시간 0.028초

Plant Virome Analysis by the Deep Sequencing of Small RNAs of Fritillaria thunbergii var. chekiangensis and the Rapid Identification of Viruses

  • Chen, Lu-xi;Pan, Hang-kai;Tao, Yu-tian;Yang, Dang;Deng, Hui-min;Xu, Kai-jie;Chen, Wen-bin;Li, Jun-min
    • The Plant Pathology Journal
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    • 제38권5호
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    • pp.533-540
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    • 2022
  • Thunberg fritillary (Fritillaria thunbergii), a perennial used in traditional Chinese herbal medicine, is a members of the family Liliaceae. The degeneration of germplasm is a severe problem in the production of Fritillaria thunbergii var. chekiangensis. However, no information about viral infections of F. thunbergii var. chekiangensis has been reported. In this study, we sequenced the small RNAs of F. thunbergii var. chekiangensis from leaves and bulbs, and viruses were identified using a phylogenetic analysis and BLAST search for sequence. In addition, multiplex reverse transcriptase-polymerase chain reaction (RT-PCR) was used to rapidly detect viruses in this variety. Our study first reported that five viruses infected F. thunbergii var. chekiangensis. Among them, fritillary virus Y (FVY), lily mottle virus (LMoV), Thunberg fritillary mosaic virus (TFMV), and hop yellow virus (HYV) had been reported in F. thunbergii, while apple stem grooving virus was first reported in the genus Fritillaria. A multiplex RT-PCR method was developed to rapidly test the four viruses FVY, LMoV, TFMV, and HYV in F. thunbergii var. chekiangensis. Our results provide a better understanding of the infection of F. thunbergii var. chekiangensis by viruses and a basic reference for the better design of suitable control measures.

Information Sources for Investment Decisions of U.S. Elderly Consumers

  • Baek, Eun-Young
    • International Journal of Human Ecology
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    • 제11권2호
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    • pp.51-61
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    • 2010
  • Using data from the 2007 SCF, this study examined the use of information source for investment decisions of elderly consumers. The results indicated that many elderly consumers (about 88%) involved savings /investment decisions. The elderly used 'Experts' (39.48%) as a major information source for their investment decisions, followed by 'Friends' (24.18%). The results of the multinomial logit analysis suggested that the perceived value, the cost for search, knowledge, risk and some of the demographic factors were significantly related to the choice of the information sources for investments by elderly consumers.

Comparison of college students' behavior toward nutrition information communication between Korea and the US

  • Kim, Chang-Sik;Bosselman, Robert;Choi, Hyung-Min;Lee, Keum Sil;Kim, Eojina;Moon, Hyeyoung;Jang, Yoon Jung;Ham, Sunny
    • Nutrition Research and Practice
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    • 제14권4호
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    • pp.401-411
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    • 2020
  • BACKGROUND/OBJECTIVES: The expansion of menu labeling to restaurants has created a need to study customers' behavior toward nutrition information. Therefore, the purpose of this research was to compare college students' behavior toward nutrition information communication between Korea and the US. This study consisted of three objectives: 1) to compare the frequency of usage as well as degree of trust regarding smartphone-based communication channels in the acquisition of nutrition information among college students between Korea and the US, 2) to compare knowledge-sharing behavior related to nutrition information among college students between Korea and the US, and 3) to identify the role of country in the process of knowledge-sharing behavior. SUBJECTS/METHODS: A survey was distributed via the web to college students in Korea and the US. Data were collected in the 2nd week of March 2017. Completed responses were collected from 423 Koreans and 280 Americans. Differences between Koreans and Americans were evaluated for statistical significance using a t-test. In order to verify the effects of knowledge self-efficacy and transactive memory capability on knowledge-sharing behavior related to nutrition information, a regression analysis was performed. RESULTS: Significant differences were found in the frequency of usage as well as degree of trust in communication channels related to nutrition information between Korean and American college students. While knowledge self-efficacy and tractive memory capability had positive effects on knowledge-sharing behavior related to nutrition information, country had a significant effect on the process. CONCLUSIONS: This study is the first to compare customer behavior toward nutrition information acquisition and sharing between Korea and the US. Comparative research on nutrition information revealed differences among the different countries. Therefore, this study contributes to the body of knowledge on the nutrition information research, in particular, by providing a comparison study between countries.

천연염색전문 인터넷 쇼핑몰 현황 및 상품 분석 (Analysis of the Conditions and Products of Natural Dyeing Internet Shopping Malls)

  • 이미숙;정경희
    • 한국의류학회지
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    • 제34권7호
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    • pp.1205-1219
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    • 2010
  • This study analyzes the conditions and products of internet shopping malls that sell natural dyeing products. In this study, 98 natural dyeing internet shopping malls were selected. The results of this study are as follows. The locations of the internet shopping malls were Gyeonggi-do, Seoul, Jeollanam-do, Gyeongsangbuk-do, Gwang-ju (city), Daegu (city), Busan (city), Gyeongsangnam-do, and Jeju-do. The most frequent dyes of the natural dyeing products were loess, followed by charcoal, indigo, and persimmon. Indigo was most frequently used in Seoul, with loess and charcoal most frequent in Gyeonggi-do. Persimmon, indigo, loess, and charcoal were mainly used in Jeollanam-do, with persimmon and loess in the Gyeongsangbuk-do, and persimmon in Jeju-do. The highest ordered product categories were accessories, followed by adult clothing, interior decoration products, and bedding. The most frequent products were bedclothes, followed by scarves, female shirts, blouses, pillows, female jackets, and vests. Regarding the price of products, 150,000-200,000 won was the highest for the Saenghwal Hanbok, with 10,000-30,000 won for underwear, 30,000-60,000 won for accessories, and 100,000-150,000 won for bedding. Concerning product information, 58.2% of internet shopping malls offer the product size and almost half of them did not show the properties or directions for handling the product. Based on the research results, the problems of the conditions and products of natural dyeing internet shopping mall were derived. The results show that the natural dyes of internet shopping malls lacked regional symbolism, the products were not specialized, and product information was not fully offered to consumers. To solve these problems, the strategies for marketing the promotion of the natural dyeing internet shopping mall were, ‘Using natural dyes from local resources’, ‘Market oriented and specialized item design’, and ‘Offer right product information’.

경관생태학적 유역관리를 위한 토지이용 유형 분류 (A Landscape Ecological Classification based on Watershed Focusing Landcover Types)

  • 오정학;정성관;권진오;박경훈
    • 한국지리정보학회지
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    • 제10권4호
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    • pp.22-34
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    • 2007
  • 우리나라는 그 동안 국토를 이용하고 관리함에 있어 생태적 계획에 입각한 지속가능한 보전 및 관리보다는 효율성과 경제성을 중심으로 한 개발지향적 논리에 초점을 맞춤으로써 국토 환경보전에 커다란 기여를 하고 있는 농경지 및 산지면적이 지속적으로 감소하고 있는 추세이다. 지역생태계의 가치에 대한 생태학적 인식이 부족한 가운데 이루어진 일련의 지속적인 개발압력은 자연환경의 자정능력을 초과하는 환경압력으로 작용함에 따라 지역생태계의 건전한 물질순환과 에너지 흐름에 부정적인 결과를 초래하고 있다. 이에 본 연구에서는 기존의 물환경 문제해결을 위한 공간단위로서의 유역개념이 아닌 생태계를 평가하고 관리할 수 있는 공간 단위개념으로서 유역을 분석하기 위하여 다양한 경관요소가 혼재하고 있는 낙동강 유역권을 대상으로 경관구성 요소 중 토지이용을 중심으로 공간분석기법을 활용하여 서로 유사한 패턴을 보이는 유형으로 분류하고, 각 유형별 지역에 대한 특징을 분석하였다.

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유행정보원 이용도, 의류광고 선호도와 유행선도력과의 관계 (The Relationships Between the Use of Fashion Information, Preference of Fashion Advertising and Fashion Leadership)

  • 박옥환;이정순
    • 한국생활과학회지
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    • 제2권1호
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    • pp.53-61
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    • 1993
  • The purpose of this research was to find out relationships between the use of fashion information, preference of fashion advertising and fashion leadership. This research was carried out by both the theoretical and empirical study. For the theoretical study, the research of Fashion Leadership was based on the fashion opinion leadership and innovativeness. The study include the analysis of variables influencing fashion leadership, such as use of fashion information preference of fashion advertising, and demographic variables. For the empirical study, fashion leadership was measured by fashion opinion leadership and innovativeness. The variables influencing on the fashion leadership were measured by use of fashion information (marketer-dominated information, consumer-dominated information, neutral information), preference of fashion advertising (dramatic type, feeling type, goods demonstration type), demorgraphic variables (age, years of education, family income, job, marriage). Data were obtained from 313 female in chungbuk area by self-administered questionaire. The datacollected through the questionaire were analyzed by the stastical technique - ANOVA and Duncantest, t-test, stepwise multiple-regression. The results of the study were as follows; 1. There were significant differences on the fashion leadership, fashion innovativeness, fashion opinionleadership according to the marketer dominated information and neutral information. There were significant differences on the fashion leadership, fashion innovativeness, fashion opinion leadership according to the preference of dramatic type. There were significant differences on the fashion opinion leadership according to the preference of goods demonstration type. 2. 30 percent of the total variance of fashion leadership was explained by the six variables: fashion magazines, TV & Radio advertising, clothing of TV talent & singer, years of education, dramatic type, catalogue. 3. When the subjects were divided into five groups(innovative communicators, innovators, opinion leaders, followers, indifferents) according to their innovativeness scores and opinion leadership scores, there were significant differences among groups in most of use of fashion information, preference of fashion advertising variables and in some of demographic variables. 4. There were significant interactions between marketer-dominated information and dramatic type and were significant interactions in goods demonstration type, marketer-dominated information and dramatic type. There were significant interactions between consumer-dominated information and dramatic type. This ariables has the effect on Fashion Leadership by the interactions.

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소비자 맞춤형 식품안전 정보 제공 웹 디자인 개발에 관한 연구 (A Study on Web Design Development for Consumer-Oriented Information for Food Safety)

  • 이심열;박명희;조유현
    • 한국생활과학회지
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    • 제21권6호
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    • pp.1129-1144
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    • 2012
  • The purpose of this study was to investigate the gender difference in adolescent's problem behavior and depression, and The main aim of this study was to develop a fundamental web design to provide information content that would be easy for average consumers to understand based on the classification of information related to food safety. Based on the information obtained through in-depth interviews, the researchers developed an information classification system that meets the needs of consumers, and which serve as a basic framework for a homepage for a food safety information center. A total of 62 food items in 6 areas were selected based on reports of food safety related events occurring between 1998-2009 (KFDA 2008). The classification system of risk factors such as chemical risk factors and biological risk factors were categorized. The specific features of the information content for individual food items provided for classification based on evaluation by professional food scientists and the importance of risk factors. By providing a consumer participation section and company participation section, it was anticipated that the food safety information center would be able to act as a moderator for food safety information communication among consumers, the food industry, and the government. Based on the development of a classification system and framework, a design plan and tree-map for the internet site was developed.

습지보호지역의 습지보전·이용시설 현황에 관한 기초 연구 - 5개 습지보호지역을 대상으로 - (Fundamental Research of Preservation & Utility Facilities in Wetland Protected Area - 5 Wetland Protected Areas were Used as Main Subjects -)

  • 조동길;박용수;심윤진;이지현;이동진;김상혁;차진열;박미영;송유진;남춘희;김종철;문상균
    • 한국환경복원기술학회지
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    • 제19권1호
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    • pp.25-43
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    • 2016
  • This research was completed to provide fundamental data regarding the guidelines to installing and managing utility facilities & structures in wetland protected area to advance the functions and sustainable use of ecology services by preserving the ecology within wetland protected area. There were 5 on-site researching areas that were used as the main subject with these areas chosen and considered from 21 inland wetlands that have been designated and are being managed from the Ministry of Environment and by their designated dates as a wetland protected area. The utility facilities in these wetland areas were categorized by their types and a detailed on-site investigation was proceeded with investigation items chosen whereas these facilities are working by their roles from their location, size, used materials, types, information contents and etc., The results showed that regarding informational structures, several locations of information boards were distanced from the main exploring routes which did not consider the visitor's eye level which had their readability dropped and by sunlight, time lapse and water penetration, many information boards were damaged or corrupted so that it was hard to confirm the information noticed or understanding an image. Insufficient observation and educational structures were installed that considered the ecological characteristics of wild animals and their living conditions. Regarding convenience facilities, there were parking lots that were installed on the fore-land and to decrease non-point solution sources, some parking lots needed to be located in protected lowlands while some facilities' shape and colors did not harmonize with their natural surroundings, creating a sense of awareness, which will need some more consideration. As for safety facilities, they were very insufficient compared to other facilities. This means that additional safety structures are needed so that related personnel can be aware of where a visitor is located when an accident occurs. Protectional facilities strongly needed new structures and a management system to cut off entrances and do surveillance so that visitors do not go into areas outside of the managed areas and bring damages to restricted locations. Research labs needed to expand the use of automatic weather systems and water gauge equipments to build fundamental data regarding floodgates that are intimated to the forming of wetlands. Sensor cameras and other types of monitoring systems are needed to monitor the majority types of animals living in the wetlands as well.

신규 수입 승인 6개 유전자변형작물의 검출기법 개발 (Development of detection methods for six approved LM crops in Korea)

  • 설민아;조범호;최원균;신수영;엄순재;김일룡;송해룡;이중로
    • Journal of Plant Biotechnology
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    • 제44권1호
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    • pp.97-106
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    • 2017
  • 일반적으로 유전자를 재조합하는 생명공학기술이 널리 이용되고 있는 것은 유전자변형 작물 분야이다. LM 제품에 대한 의존도가 높아짐에 따라 한국에서는 LMO의 안전성에 대한 우려가 지속적으로 증가하고 있다. 따라서, 우리는 자연환경 내 비의도적으로 방출된 LMO를 판별할 수 있는 검출기법을 확립하였다. JRC 정보를 토대로 6개 LM 이벤트(캐놀라 1, 옥수수 1, 콩 4개)의 유전자를 검출할 수 있는 PCR 조건을 확립하였다. 각 LM 시료에서 genomic DNA를 분리하였고, 이벤트 특이적인 프라이머를 사용하여 PCR 실험을 수행하였다. 또한 자체적으로 확립된 검출법에 의해 모든 LMO의 이벤트 특이적 유전자가 검출되었다. LM 유전자의 삽입 위치를 분석하기 위해 PCR 생성물을 이용하여 염기서열을 분석하였다. 이 결과는 LM 이벤트의 특이적인 유전자를 효율적으로 검출할 수 있음을 나타낸다. 게다가 본 연구결과 확립된 검출기법은 자연환경 내 LM 작물의 모니터링 및 사후 관리에 활용될 것이다.

중국 북부 연안의 잘피: 역사적 감소추세 및 현황에 대한 사례 (Seagrasses in Northern Chinese Seas: Historical Declines and Case Study of the Status)

  • 장쑤에레이;리얀;리우핑;순핑;왕샤오;판시량;쑤퀸쳉
    • 한국해양환경ㆍ에너지학회지
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    • 제13권4호
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    • pp.305-312
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    • 2010
  • 잘피밭은 많은 생태계서비스를 제공하는 경제적 가치가 매우 높은 연안습지의 한 종류다. 중국에서도 북부연안을 따라 넓은 잘피밭이 분포하나 오랫동안 중요성이 간과되어 왔고 연구도 부족한 실정이다. 본 논문은 최초로 중국 북부연안 잘피의 종류와 분포를 제시하였으며, 과거로부터 현재까지의 변동양상을 기술하여 역사적인 감소추세를 분포와 생물량의 관점에서 기술하였다. 대표적인 잘피밭의 현황을 나타내기 위해 추다오 지역을 선정하여 사례를 제시하였다. 환경조건이 좋은 곳에서는 잘피도 회복되고 있으며, 잘피밭에 의존하는 플랑크톤과 어류, 돌고래 등 해양포유류도 풍부하였다. 역사적인 감소추세와 현상황에 대한 원인이 토의되었으며 보호를 위하여 필요한 연구내용을 제시하였다.