• 제목/요약/키워드: Trends of study

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우리나라 고등학생의 식품 및 영양소 섭취 변화 추이 - 2007~2015 국민건강영양조사를 이용하여 - (Trends in Food and Nutrient Intake of High School Students based on the Korea National Health and Nutrition Examination Survey 2007~2015)

  • 김선효
    • 한국식품영양학회지
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    • 제33권5호
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    • pp.447-458
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    • 2020
  • This study assessed yearly trends of food and nutrient intake among high school students aged 16 to 18 years (n=2,377) using the 2007~2015 Korea National Health and Nutrition Examination Survey (KNHANES). Yearly trends of food or nutrient intake were analyzed via logistic regression analysis. The results showed that consumption of sugars & sweets, and beverages & alcohols was increased rapidly during this period (p<0.0001). Intake of meat & meat products, and fish & shellfish also was increased (p=0.0008). Intake of grains and grain products was increased until year 2011 but declined after 2012 (p=0.0025). Consumption of vegetables, and milk & milk products was decreased (p=0.0395). Intake of protein, fat, thiamin, riboflavin, niacin, and iron was increased (p=0.0445). Carbohydrate energy ratio was decreased, whereas fat energy ratio was increased (p=0.0235). Most nutrient intakes satisfied the dietary reference intakes for Koreans except dietary fiber (19.6~26.2%), calcium (46.9~55.2%) and sodium (more than 221.4%) during this period. There was a significant positive correlation between most food group intakes and most nutrient intakes (p=0.0468). Therefore, it is crucial to increase dietary fiber and calcium intake and decrease consumption of sugars, fats and sodium through diverse eating of food groups to ensure balanced nutrition of subjects.

R&D Trends Monitoring through Scanning Public R&D Investments: The Case of Information & Communication Technology (ICT) in Meteorology and Climatology

  • Heo, Yoseob;Kim, Hyunwoo;Kim, Jungjoon;Kang, Jongseok
    • Asian Journal of Innovation and Policy
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    • 제5권3호
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    • pp.315-329
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    • 2016
  • Public R&D investment information has diverse implications for researching R&D trends. Also, as it is important for the establishment of R&D policy to grasp the current situation and trends of R&D to improve science and technology level, science and technology information service system, such as NTIS (National Science & Technology Information Service), is operated at a national level in most countries. However, since the data forms provided by current NTIS are raw data, it is necessary to develop the R&D performance indicator or to use additional scientometric methods by analyzing scientific papers or scientific R&D project information for grasping R&D trends or analyzing R&D task results. Thus, this study applied public R&D investment information to investigate and monitor R&D trends in the field of information & communication technology (ICT) of meteorology and climatology by using NTIS data of Korea and NSF (National Science Foundation) data of USA.

원형탈모증의 국내 한의학 임상 연구동향 (Review of Domestic Clinical Research Trends of Korean Medicine on Alopecia areata)

  • 천혜선
    • 동의생리병리학회지
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    • 제36권6호
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    • pp.221-228
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    • 2022
  • The purpose of this study is to report the research trends of Korean medicine treatment for alopecia areata. We investigated the studies on Korean medicine treatments for alopecia areata via searching 4 web databases of Korea. 13 papers were selected, and we classified them according to publication year, published journals, the types of study, research subject, the methods of treatment, confirmation of recurrence, methods of evaluation, and institutional review board(IRB). We analyzed a total of 13 clinical studies of Korean medicine on alopecia areata based on various criteria and reviewed the research trends. Based on this, we suggested points to be improved and supplemented when conducting clinical research on alopecia areata in the future. Clinical studies on alopecia areata started to be published in 2001, and acupuncture, pharmacopuncture, herbal medicines, etc. were used as treatment methods for alopecia areata. Most of the clinical studies on alopecia areata were case studies, so it is thought that various types of clinical studies are needed. In addition, it is necessary to confirm the recurrence of alopecia areata and to improve the awareness of research ethics.

최근 10년(1996년$\sim$2005년) 간 국내 패션 트렌드의 경향 분석 (An Analysis of the Fashion Trends in Korea over the Last 10 years(1996-2005))

  • 고은주;이지현
    • 복식
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    • 제58권9호
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    • pp.18-28
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    • 2008
  • The purpose of this study is to examine the Characteristics of Fashion Trends($1996{\sim}2005$) of Korea by the trend elements - style, fabric and color. The results of this study are as followed. During 10years, 'modern(18%)', 'elegant(11%)' and 'romantic(10%)' styles were shown in order, and colors of YR(17%), Y(14%), R(13%) and PB(11%) were shown in order. Considering tones, m(16%), d(12%), gy(11%) and s(10%) tones were in the order of frequency. In the fabric trend 'elegant(19%)', 'modern(14%)' and 'natural(14%)' images showed the high frequency. Since 2000's, style trends and fabric trends were subdivided, and the contrary images coexisted. The trend images of 'natural', 'retro', 'manish' and 'fun' were mainly used in fabric trend, and 'romantic' and 'classic' images were frequently used in style trend. The changes of trend images in style and fabric have been similar until the early 2000's but the cycle of trend of style became shorter than fabric trend. Therefore the cycle of fabric trend should be changed to be a short term and subdivided in company with style trend.

Long-term Environmental Changes: Interpretations from a Marine Benthic Ecologist's Perspective (II) -Eutrophication and Substratum Properties

  • Yoo Jae-Won;Hong Jae-Sang;Lee Jae June
    • Fisheries and Aquatic Sciences
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    • 제2권2호
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    • pp.210-217
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    • 1999
  • Chemical oxygen demand (COD), phytoplankton cell number and chlorophyll-a concentration (Chl-a), sediment mean grain size and ignition loss were studied to determine their temporal trends in the study area. Historical data of COD, cell number and Chl-a were gathered from the late 1960s or early 1980s to 1997, and trends in temporal domain were obtained from a simple regression. Sediments for grain size and ignition loss (as organic contents in sediments) were sampled from the Chokchon macrotidal flat bimonthly from September 1990 to November 1996, and were analyzed using the decomposition method of time series analysis. In general, the first three data showed increasing trends based on regression analysis. The trends of sediment grain size fluctuated in a neutral pathway while those of ignition loss yielded no increasing pattern. In contrast with the suggestions from Ahn and Choi (1998) who reported a coarsening variation in sediment grain size to be a cause of the directional and remarkable changes of macrofaunal communities in this area, we could not find such a corresponding variation pattern from our samples. In diagnosing eutrophication, a paradoxical phenomenon was encountered between the trends in water column (COD, cell number and Chl-a) and sediment (ignition loss) data. In this paper, we inferred the possible processes that produce the discrepancy. Some explanations and biological responses to eutrophication were predicted and discussed.

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An Analysis of Menswear Brands in the Current Domestic Fashion Market

  • Jang, Eunyoung
    • 패션비즈니스
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    • 제19권6호
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    • pp.101-111
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    • 2015
  • This study aims to analyze the current state of menswear in the domestic fashion market and the trend of new menswear brands. In addition to this, a comparative analysis of domestic and foreign menswear brands will be done to provide baseline data for the domestic brands in regards to strategic direction in the coming years. The study used reports published by Samsungdesign.net, which provided trends of 110 new brands from 2005 to 2014, in order to analyze the trends of new menswear brands launched during that period. Menswear brand information in the Korean Fashion Brand Annual, of which there were 168, were utilized to research the current state of the brands in the domestic market. As a results, menswear is expected to become more sensitive to trends and designs thanks to steady launchings of menswear brands within character casual zoning for the past 10 years and active brand launchings within contemporary zoning in the last 5 years. Also, as more brands are targeting men in their 20's as their main customers, it suggests that menswear brands are striving for a younger mindset. In terms of pricing, prestige and budget line launchings they seem to be dwindling, while bridge brands are increasing. This shows that customers are demanding luxury items at a reasonable price. Since there are higher ratio of foreign brands in dress shirts and contemporary zoning, domestic brands need to develop and produce more high quality clothes within these zonings.

한식의 세계화 관련 학술적 연구 동향 분석 (Analysis of Academic Research Trends Pertaining to Globalization of Korean Food)

  • 민계홍
    • 한국식품조리과학회지
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    • 제25권5호
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    • pp.606-618
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    • 2009
  • The purpose of this study was to analyze research trends in scholarly journals that were related to the globalization of Korean food and to provide information on the future of these trends such as various creative subject selection and research methods. 70 papers pertaining to Korean food research, such as academic journals expected to be registered, and national-scale academic papers, were selected. This research was conducted from April 6 to April 22. 2009. The results of this study were as the follows: First, most of the papers, 20(28.6%), were published in the journal of Korean journal of food culture. In addition, most articles had a single author, 24(34.3%). In regard to the profession of the auther, university professor was the most frequent profession, 127 persons(68.3%). In terms of the research subjects, preference was the most dominant preference(19.2%). Investigatory research was the most frequent research method, 58 papers(82.9%). Furthermore, foreigners and natives were the most dominant research objects, 21 papers(30.0%). As for the analysis methods, frequency analysis, one-way ANOVA, T-test, reliability analysis, and factor analysis were used the most in that order. Future studies should includ papers for master's degrees and doctorial degrees.

현대의 사회.문화적 패러다임 변화와 연관된 공공디자인의 신경향 분석에 관한 연구 (A Study on the Leading Trends in Contemporary Public Design Analyzed in the Context of Main Social & Cultural Paradigms)

  • 이정민
    • 한국실내디자인학회논문집
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    • 제21권3호
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    • pp.76-86
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    • 2012
  • 21st century has different characters from 20th century which was an era of machine and rationality based on the industrial revolution. With the advent of the digital revolution, it became an era of pluralism, culture, and emotion. The digital technology made it possible to connect the whole world together in real time and brought about the entirely new notion of time and space. It also dramatically altered the world view. Now we have a different set of social and cultural values from the past. This paper researched the influences of these social and cultural changes on public designs. The leading trends of public designs were analyzed and the successful cases were studied. The main research methodologies were the document review and the instrumental case study. The major social & cultural paradigms of a present era were classified as 'pluralism', 'digital & information revolution', 'human-centered value (against machine-centered value of 20th century)', and 'organic world view'. Each of the classified paradigms was analyzed more to find out the influences on the various trends of public designs. 'Pluralism' has influence on 'experiential public design', 'community art', and 'public design of local values'. 'Digital & information revolution' has influence on 'content-centered public design', 'smart public design', 'immaterial public design', and 'performance in public design'. 'Human-centered value' has influence on 'universal design approach in public design', and 'emotional public design'. 'Organic world view' has influence on 'sustainable public design', and 'ecological public design'.

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K 패션에 대한 글로벌 미디어 보도 경향 분석 -다이내믹 토픽 모델링(Dynamic Topic Modeling)의 적용- (Analysis of Global Media Reporting Trends for K-fashion -Applying Dynamic Topic Modeling-)

  • 안효선;김지영
    • 한국의류학회지
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    • 제46권6호
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    • pp.1004-1022
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    • 2022
  • This study seeks to investigate K-fashion's external image by examining the trends in global media reporting. It applies Dynamic Topic Modeling (DTM), which captures the evolution of topics in a sequentially organized corpus of documents, and consists of text preprocessing, the determination of the number of topics, and a timeseries analysis of the probability distribution of words within topics. The data set comprised 551 online media articles on 'Korean fashion' or 'K-fashion' published on Google News between 2010 and 2021. The analysis identifies seven topics: 'brand look and style,' 'lifestyle,' 'traditional style,' 'Seoul Fashion Week (SFW) event,' 'model size,' 'K-pop,' and 'fashion market,' as well as annual topic proportion trends. It also explores annual word changes within the topic and indicates increasing and decreasing word patterns. In most topics, the probability distribution of the word 'brand' is confirmed to be on the increase, while 'digital,' 'platform,' and 'virtual' have been newly created in the 'SFW event' topic. Moreover, this study confirms the transition of each K-fashion topic over the past 12 years, along with various factors related to Hallyu content, traditional culture, government support, and digital technology innovation.

과학계량학 기법을 이용한 디스플레이 연구영역의 트렌드 탐지 (Trends Detection of Display Research Areas by Bibliometric Analysis)

  • 안세정;심위;이준영;권오진;노경란
    • 한국전자통신학회논문지
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    • 제7권6호
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    • pp.1343-1351
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    • 2012
  • 본 연구에서는 디스플레이 기술군을 이루는 LED(Light Emitting Diode), OLED(Organic Light Emitting Diode), LCD(Liquid Crystal Display), PDP(Plasma Display Panel), CRT(Cathode Ray Tube) 등 5개의 연구영역에 대하여 과학계량학 기법을 이용하여 트렌드를 살펴보았다. 해당 연구영역별로 Scopus 데이터베이스 논문과 미국특허청(USPTO) 특허데이터베이스의 특허를 이용하여 각각에 대한 인용데이터를 추출하였다. 논문과 특허의 생산건수와 인용데이터를 이용하여 시간의 흐름에 따른 5개 연구영역의 발전과정 및 현재의 관심도를 분석하고 미래의 트렌드를 전망하였다.