• Title/Summary/Keyword: Life Cycle of Researchers

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Content Analysis of the Questionnaires Used in Dietary Surveys (식생활 조사연구에 사용된 설문지의 내용 분석)

  • 김기남;김애정;박은숙;우미경;이보경;현태선
    • Korean Journal of Community Nutrition
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    • v.5 no.4
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    • pp.697-708
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    • 2000
  • The purpose of this study is to analyze the contents of the questionnaires used in dietary surveys and to evaluate each item in relation to the item construction strategy. Articles of which the contents were related to food, nutrition, diet, dietary behavior, and related areas. Published from 1997 to 1999 were searched fir and a total of 121 questionnaires were collected and analyzed. The questions in the questionnaires were classified into related areas and sub-areas. Among the keywords in the title of the articles, the term 'nutritional status'(or 'dietary intake status') was most frequently used. The terms such as dietary status, obesity, health, food habit, and dietary behavior were also frequency used. Major topics of the items in the questionnaires varied according to the life cycle of the subjects of the study. The topics most frequently asked in each lift cycle were as follows : overeating, snack, and food preference for preschool- and school-aged children ; anthropometry, weight control, and snack for middle and highschool students : meal skipping, smoking, and drinking for college students : disease, smoking, drinking, and exercise for adults : and smoking, drinking, disease and perceived health for the elderly. Inappropriate questions with complicated language, typographic and grammatic errors, unnecessary words, and negative questions were found. Therefore, care should be taken to construct each question so as to avoid possible misinterpretation. Also, a standardized questionnaire be developed for survey researchers.

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A Study on Family-friendly Education of Corporations and Organizations Supporting Corporations (기업 및 기업 지원기관의 가족친화교육 실태에 관한 연구)

  • Kim, Sunghee
    • Journal of Families and Better Life
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    • v.33 no.2
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    • pp.21-33
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    • 2015
  • This study was carried out to explore the actual condition of family-friendly education of corporations and organizations supporting them for the purpose of activating the family-friendly certification system. The researches on the family-friendly education of corporations or related organizations have not become an object of attention, although the policies of family-friendly corporations have been the major concern of researchers who have conducted studies on the balancing between work and family. For the first time, this study investigated the family-friendly education programs of corporations and organizations supporting them. In addition to this work, interviews with laborers were performed to learn the actual participation in the education. The results showed that even corporations selected as excellent corporations by the government scarcely provided family-friendly educations and few laborers participated in them. The most educations provided by corporations were for the improvement of work ability or job training. Education for family concentrated only on the role of the father. The focus of educations supporting corporations was biased to the view of corporation or family, not balanced between the two. So it was suggested that researchers should pay attention to developing diverse education programs encompassing the whole stages of life cycle and the balancing between corporation and family.

Efficacy of relieve premenstrual syndrome of Inula helenium L. root extract

  • Jeong, Yong Joon;Yun, Su Yeong;Lee, Da Eun;Kang, Se Chan
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2018.10a
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    • pp.123-123
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    • 2018
  • Premenstrual syndrome (PMS) is a common disorder affecting the emotional and physical health of women during certain periods of the menstrual cycle. Many researchers who have previously studied PMS have believed that PMS is associated with changes in sex hormones and serotonin levels at the beginning of the menstrual cycle. However, recent studies suggest that progesterone/estrogen imbalance and elevation of prolactin-induced by dopamine low-secretion play a crucial role in increasing PMS symptoms. Because of this, we have focused on mitigating PMS symptoms through the mechanism of prolactin secretion inhibition by dopamine receptor activation. The inhibition of prolactin secretion by 61-kinds of medicinal herb extracts was investigated in GH3 pituitary cells. Among them, Inula heleniun L. root extract (IHE) showed excellent prolactin secretion inhibitory effect. IHEs were prepared using 30, 50, and 70% ethanol. And the yield, cytotoxicity, dopamine receptor activity and inhibition of prolactin secretion of each extract were measured. Through a series of experiments, we found that prolactin secretion was significantly reduced (P<0.01) by the components present in IHE and that dopamine receptor regulation was possible (P<0.05). Considering yield and safety, we suggest the use of 30% ethanol IHE in the development of PMS symptom relief products.

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AN ASSESSMENT SYSTEM OF ECO-FRIENDLINESS OF CONSTRUCTED FACILITY IN THE DESIGN PHASE USING VALUE ENGINEERING

  • Byung-Soo, Kim;Dong-Eun, Lee;Suk-Hyun, Kwon;Min-Kwon, Choe
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.1625-1629
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    • 2009
  • The new paradigm called 'Low Carbon Green Growth' involved in reducing greenhouse gas is on the rise as a critical issue worldwide. The essential of Kyoto protocol issued in 1997 is to achieve the sustainable economic growth environments by converting existing production system to eco-friendly one. The protocol imposes the liability to reduce greenhouse gas to the countries joined to it. The paradigm is directly involved in the energy consumption and environmental pollution caused by construction activities. Value Engineering which are mainly applied in the design phase in practice is a measure to improve the value of a constructed facility by analyzing and/or appraising the functions and costs of it. However, an appropriate method which assesses eco-friendliness of constructed facility has not been propose by researchers. This paper proposes a method which assesses the performance involved in eco-friendliness of constructed facility using Value Engineering (VE) in the design phase. The method estimates the environmental cost relative to the amounts of energy consumption and environmental pollution occurred over the entire project life cycle. The database called "Life Cycle Inventory DB", which stores information about the amounts of environmental pollution, is used. The algorithm which retrieves the amounts of environmental pollutions from the DB and converts them into environmental costs is developed. The algorithm is implemented into a system which quantifies the eco-friendliness of constructed facility in the design phase using VE.

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Practical Issues of Earned Value Management Systems (EVMS) for Nuclear Power Plant (NPP) Construction

  • Jung, Youngsoo;Kim, Sungrae;Moon, Byeong-Suk
    • International conference on construction engineering and project management
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    • 2015.10a
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    • pp.696-697
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    • 2015
  • Cost, schedule, and quality are the three major performance indicators for any construction project. Under the globalized competition in the nuclear industry, researchers and practitioners have also explored a systemized and integrated management system for cost, schedule, and quality. In order to address this issue, the concept of earned value management system (EVMS) has been often utilized. However, implementing EVMS for a mega-project of nuclear power plant (NPP) construction requires extensive overhead efforts. Though previous studies proposed structures and methods for effective NPP EVMS, there has been no legitimate study for data collection strategy for practical implementation. In this context, the purpose of this paper is to develop an effective data collection strategy for NPP EVMS. Firstly, the barriers to practical NPP EVMS were identified based on literature review and expert interviews. Strategies for data collection were then developed based on different phases of project life cycle. This study focuses on the 'life-cycle integrated progress management system' for NPP construction from an owner's perspective Therefore, results of this study can be used as a guide for preparing request for proposals (RFP) of an NPP owner organization.

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Development of Regression Model to evaluate the indirect costs of Life-Cycle Costs (생애주기비용의 간접비용 산출을 위한 Regression Model의 개발)

  • 조효남;이종순;김충완;박경훈
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2004.10a
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    • pp.150-156
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    • 2004
  • Though the concept of Life-Cycle Cost (LCC) itself is not new, its effectiveness for planning, design, rehabilitation and maintenance/management of civil infrastructures is becoming increasingly recognized. For the decision problems as in the case of the LCC of plant facilities, equipments, bridge decks, pavements, etc., the Life-Cycle Cost Analysis (LCCA) is relatively simple, and thus its practical implementation is rather straightforward. However, when it comes to major infrastructures such as bridge, tunnels, underground facilities, etc., the LCCA problem becomes extremely complex because lack of cost data associated with various direct and indirect losses, and the absence of uncertainty data available for the assessment as well. As a result, the LCC studies have been largely limited only to those relatively simple LCCA problems of planning or conceptual design for making decisions. Accordingly, in the recent years, the researchers have pursued extensive studies on the LCC effectiveness mostly related to LCC models and frameworks for civil infrastructures. Moreover, recently the demand on the practical application of LCC effective decisions in design and maintenance is rapidly growing unprecedently in civil engineering practice. Indirction cost is very important on LCC formulation. But that is very difficult and complicate the estimation every LCC. The objective of this paper is to suggest efficient regression model for the estimation of indirect cost approach to the practical application of LCC for the design and rehabilitation of civil. infrastructures considering traffic, traffic network, detour condition, and workzone condition. In this paper, it performed the sensitivity analysis and correlation analysis of parameter for development of regression model of inflection cost.

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Gametogenic Cycle and the Size at 50% of Group Sexual Maturity in Male Chlamys (Azumapecten) farreri nipponensis (Kuroda, 1932) (Bivalvia: Pectinidae) in Western Korea

  • Park, Ki Yeol;Chung, Ee-Yung;Lee, Ki-Young;Park, Kwan Ha
    • The Korean Journal of Malacology
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    • v.29 no.1
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    • pp.65-76
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    • 2013
  • We investigated the gametogenic cycle and spawning seasons of the male Chlamys (Azumapecten) farreri nipponensis by qualitative and quantitative analyses, and also the size at 50% of group sexual maturity was calculated by the data of first sexual maturity. In this study, the male gametogenic cycle of this species by qualitative analysis was divided into five successive stages: early active stage (January to March), late active stage (March to April), ripe stage (April to August), partially spawned stage (July to September), and spent/inactive stage (August to January). The male gametogenic cycle showed similar patterns with monthly changes in the gonadosomatic index and condition index. Particularly, spawning in male scallop occurred once a year from July to September, unlike the spawning period of this species (from June to August) reported by the previous researchers. In quantitative statistical analysis using an image analyzer system, the patterns of monthly changes in the percent (%) of the areas occupied by spermatogenic stages to the testis areas in males showed a maximum in June, and then sharply dropped from July to September, 2006. From these data, it is apparent that the spawning season of C. (A.) farreri nipponensis occurred once per year from July to early September, indicating a unimodal gametogenic cycle during the year. Shell heights at 50% of group sexual maturity (RM50) fitted to an exponential equation were estimated to be 49.90 mm in males (considered to be one year old), and it was 100% for male scallops over 61.0 mm (considered to be two years old).

Who Speaks for Innovations?: An Analysis of the Media Exposure of R&D Outputs

  • Jeong, Seongkyoon;Cho, Sukmin
    • STI Policy Review
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    • v.8 no.1
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    • pp.41-61
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    • 2017
  • The literature in research policy extensively addresses the interaction between public R&D and the society. Scholars have paid particular attention to the way science and technology are diffused into the society and industry with the aim of substantiating their potential value. In practice, having recognized the importance of the said interaction, R&D entities and governmental organizations promote scientific and technological innovations that result from their R&D activities. Yet, the nature of news media exposure as their primary channel to promote R&D outcomes has been remarkably understudied. Using the results of R&D projects supported by the National Research Foundation of Korea (NRF), this study examines R&D entities' strategic use of the news media to publicize their outcomes. The empirical results suggest that the scale of an R&D project positively affects the counts of media exposure of its R&D outcomes, whereas the level of technology readiness and the technology life-cycle do not have significant influence. In addition, the results suggest that, compared to senior researchers, young researchers are more likely to publicize their R&D outcomes and that R&D outcomes from highly ranked universities are more likely to be publicized than those from lower-ranking universities despite our control for R&D outcomes. The aforementioned results suggest that in promoting the diffusion of science and technology, especially to the public, policymakers should be concerned about incentives for those who provide techno-scientific information, such as researchers. The social need for the diffusion of techno-scientific information into the public (e.g., technology transfer and diffusion) is an insignificant factor in determining the media exposure of such information, whereas personal benefits and sensitive issues related to a researcher's own R&D activities (e.g., justification for R&D activities) drive researchers to publicize their R&D outcomes. This paper suggests that policymakers, especially those concerned with better diffusion of scientific and technological innovations need to design a proper incentive system to maximize the societal benefits of media exposure.

Progress of Pruritus Research in Atopic Dermatitis

  • Lee, Chang-Hoon
    • Biomolecules & Therapeutics
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    • v.18 no.3
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    • pp.246-256
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    • 2010
  • Atopic dermatitis is a common skin disease affecting up to 10% of children and approximately 2% of adults. Atopic dermatitis exhibits four major symptoms, including intense itching, dry skin, redness and exudation. The "itch-scratch-itch" cycle is one of the major features in atopic dermatitis. The pathophysiology and neurobiology of pruritus is unclear. Currently there are no single and universally effective pharmacological antipruritic drugs for treatment of atopic dermatitis. Thus, controlling of itch is a very important unmet need in patients suffering from atopic dermatitis. This article will update progress during the past 10 years of research in the field of pruritus of atopic dermatitis, focusing on aspects of pruritogens (including inflammatory lipids, histamine, serotonin, proteinases, proteinase-activating receptors, neurotransmitters, neuropeptides, and opioid peptides), antipruritic therapies, and emerging new targets. Based on recent progress, researchers expect to identify exciting possibilities for improved treatments and to develop new antipruritic drugs acting through novel targets, such as histamine H4 receptor, gastrin-releasing peptide receptor, MrgprA3, thromboxane A2 receptor and the putative SPC receptor.

The Role of Self-Control on Retirement Preparedness of US Households

  • Kim, Kyoung Tae;Lee, Jae Min;Hong, JiHyun Eunice
    • International Journal of Human Ecology
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    • v.17 no.2
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    • pp.31-42
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    • 2016
  • We examine the self-control problems of U.S households and their effects on households' retirement preparedness based on the Behavioral Life-Cycle Hypothesis. Using the 2010 Survey of Consumer Finances dataset, the level of retirement adequacy was estimated with income replacement ratio (IRR), and only 42% of households were adequately prepared for retirement. Results from logistic regression analysis indicated that households with loan payment and saving self-control problems were less likely to be prepared adequately for retirement compared to those without such problems. Age, education, race/ethnicity, marital status, employment status, retirement plans, expected retirement age and risk tolerance were significantly related to retirement preparedness. This study provides financial educator and researchers with suggestions on how to help household make a better retirement plan.