• 제목/요약/키워드: collection period

검색결과 1,288건 처리시간 0.026초

중증 선천성 심질환 아동 어머니의 양육경험 (Child Rearing Experience Among Mothers of Children with Severe CHD)

  • 조경미
    • Child Health Nursing Research
    • /
    • 제13권4호
    • /
    • pp.454-466
    • /
    • 2007
  • Purpose: To explore the experiences of parenting from the mothers of children with severe CHD and to develop a grounded theory about their experiences. Method: Grounded theory method guided the data collection and analysis. A purposeful sample of 16 mothers of children with severe CHD participated during the period 2003. The data were collected by semi-structured individual interviews. Results: "Raise with dignity" emerged as the core phenomenon. 'Powerlessness' came up as the central concept. The causal conditions working on powerlessness was 'living with a bomb in the heart': uncertainty and the context were 'confronting people's eyes', 'developing child's adaptability'. An intervening condition was 'forming a support system' and consequences for coping with powerlessness were 'overcome' or 'ambivalence' using the strategies for mother's positive personality, care role perception, accepting, acknowledgement, and managing the body and mind. Conclusions: In the results of this study, the mothers of children with severe CHD are continue to struggle with life during children's growth and repeated attacks of disease. They need to be provided with skills to cope with physical and mental problems in rearing the children with expertized information for the entire period of growth.

  • PDF

Method for Composing a Portfolio for REITs Investment Using Markowitz's Portfolio Model

  • Lee, Chi-Joo;Lee, Ghang;Won, Jong-Sung
    • Journal of Construction Engineering and Project Management
    • /
    • 제1권3호
    • /
    • pp.28-37
    • /
    • 2011
  • Domestic construction companies are suffering from financing difficulties in the wake of the economic slump in Korea and abroad. During this economic slump, real estate investment trusts (REITs), facilitators for improving financing and stimulating construction businesses, have increasingly expanded since their introduction in 2001. However, in terms of growth speed and marketing size, Korean REITs are falling behind those of other nations. The purpose of this study is to suggest a method for composing a portfolio using the Markowitz portfolio selection model to stimulate REITs. The main contents are as follows. First, a comparative analysis was conducted of increased REIT profit with the application of the Markowitz model and the average REIT profit rate from July 3, 2007, to July 21, 2008, during the investment analysis periods. The results showed that the total profit rate from the Markowitz model was about 10% higher than the average REIT profit rate. Second, the sensitivity was analyzed according to the portfolio's data-gathering and replacement cycle to measure the optimum cycle and yield. The six-mouth profit data collection period showed about 16% higher profits with the Markowitz model than with the REITs. The two-week portfolio change period resulted in about 11% higher profits with the Markowitz model than with the REITs.

Field measurements of natural periods of vibration and structural damping of wind-excited tall residential buildings

  • Campbell, S.;Kwok, K.C.S.;Hitchcock, P.A.;Tse, K.T.;Leung, H.Y.
    • Wind and Structures
    • /
    • 제10권5호
    • /
    • pp.401-420
    • /
    • 2007
  • Field measurements of the wind-induced response of two residential reinforced concrete buildings, among the tallest in the world, have been performed during two typhoons. Natural periods and damping values have been determined and compared with other field measurements and empirical predictors. Suitable and common empirical predictors of natural period and structural damping have been obtained that describe the trend of tall, reinforced concrete buildings whose structural vibrations have been measured in the collection of studies in Hong Kong compiled by the authors. This data is especially important as the amount of information known about the dynamic parameters of buildings of these heights is limited. Effects of the variation of the natural period and damping values on the alongwind response of a tall building for serviceability-level wind conditions have been profiled using the gust response factor approach. When using this approach on these two buildings, the often overestimated natural periods and structural damping values suggested by empirical predictors tended to offset each other. Gust response factors calculated using the natural periods and structural damping values measured in the field were smaller than if calculated using design-stage values.

조선시대의 재난 데이타베이스 구축 및 대응에 관한 연구 (A Study on the Database of Disasters and Disaster Technologies in the Joseon Dynasty Era)

  • 이지희;방용
    • 한국안전학회지
    • /
    • 제28권1호
    • /
    • pp.137-143
    • /
    • 2013
  • Cultural heritage passing down to posterity is a global concern. But there are many culture heritage that not remained to now disappeared by various disasters. It is told that disaster is learnt from disaster. The most fundamental task in disaster prevention is to collect and analyze cases of accidents so as not to repeat a disaster. In other words, an analysis of various disaster-related materials and their countermeasures in the Joseon period is an actual condition-based phenomenological methodology used to prevent disasters at cultural properties today. In this context, it is important to collect histories of disasters in the Joseon period, to extract disaster-related historical data and to categorize the data to build a disaster literature database. This study has produced [Database of Disasters in the Joseon Era], a collection of articles on fire outbreaks based on The Annals and The Daily Records belonging to the Memory of the World. On the basis of this chronology, human and property damages caused by fires in Joseon have been examined, identified by districts, as well as disaster technologies, have been analyzed. It has also built disaster vulnerability maps in the Joseon Dynasty Era.

Social Media Rumors in Bangladesh

  • Al-Zaman, Md. Sayeed;Sife, Sifat Al;Sultana, Musfika;Akbar, Mahbuba;Ahona, Kazi Taznahel Sultana;Sarkar, Nandita
    • Journal of Information Science Theory and Practice
    • /
    • 제8권3호
    • /
    • pp.77-90
    • /
    • 2020
  • This study analyzes N=181 social media rumors from Bangladesh to find out the most popular themes, sources, and aims. The result shows that social media rumors have seven popular themes: political, health & education, crime & human rights, religious, religiopolitical, entertainment, and other. Also, online media and mainstream media are the two main sources of social media rumors, along with three tentative aims: positive, negative, and unknown. A few major findings of this research are: Political rumors dominate social media, but its percentage is decreasing, while religion-related rumors are increasing; most of the social media rumors are negative and emerge from online media, and social media itself is the dominant online source of social media rumors; and, most of the health-related rumors are negative and surge during a crisis period, such as the COVID-19 pandemic. This paper identifies some of its limitations with the data collection period, data source, and data analysis. Providing a few research directions, this study also elucidates the contributions of its results in academia and policymaking.

인베스트먼트 주조법에 의해 제작된 조선시대 금속활자의 주형재료 (Mold Material of Joseon Dynasty Period Movable Metal Types Produced by Investment Casting)

  • 박학수;윤의박
    • 대한금속재료학회지
    • /
    • 제48권6호
    • /
    • pp.551-556
    • /
    • 2010
  • In this report, we describe mold materials that were used to produce movable metal type by the investment casting method during the Joseon dynasty period in Korea. Samples were obtained from the Wibuinja collection, which is held by the National Museum of Korea. Most of the mold material remnants were found in the depressed areas of the movable type specimens, and we therefore performed non-destructive analyses including XRF, EDS, and XRD. Through these analyses, we were able to identify the mold remnants as hydrocerussite [trilead dihydroxide dicarbonate, $Pb_3(CO_3)_2(OH)_2$] formed in platy hexagonal crystallites. Hydrocerussite was first used to make white pigments and cosmetics in ancient Greece, but this is the first report of hydrocerussite used as mold material applied around a disposable pattern for investment casting. The results of this study will further the understanding of the production process for early movable metal type and ancient casting technologies.

『묵재일기(默齋日記)』 속 상한(傷寒) 및 『상한론(傷寒論)』에 대한 인식 연구 (A Study of the Concept of Cold Damage and The Shanghanlun (Treatise on Cold Damage) as They Appear in The Diary of Muk-Jae)

  • 조성환;김동율
    • 한국의사학회지
    • /
    • 제32권1호
    • /
    • pp.77-86
    • /
    • 2019
  • The Diary of Muk-Jae is a historical record that describes many social aspects of the Joseon period in the 16th century. It records many scenes of its author, Lee Mun-Geon, treating patients. This paper uses The Diary of Muk-Jae to examine changes in the perception of the concept of cold damage and the text of the Shanghanlun (Treatise on Cold Damage) in the Joseon period in the 16th century. In The Diary of Muk-Jae, cold damage is understood in connection with two categories: 'dangerous disease' and 'disease caused by cold'. The Diary of Muk-Jae also presents the Shanghanlun not as a work limited to the concept of cold damage, but as a medical text that could be widely used for many different diseases. Thus, The Diary of Muk-Jae may represent a point of transition between in the perception of cold damage as seen in the Uibang Yuchui (The Collection of Medical Procedures) of the 15th century and the Donguibogam of the 17th century.

한의학 분야 고문헌 번역연구 현황 - 시대 및 분야별 분석을 중심으로 - (Current Status of Translation Research on Korean Medical Classics - Focusing on Analysis by Era and Field -)

  • 김상현
    • 대한한의학원전학회지
    • /
    • 제35권3호
    • /
    • pp.1-20
    • /
    • 2022
  • Objectives : Translations of Korean Medical Classical texts were analyzed quantitatively to verify their trend. Based on findings, accumulated problems and their solutions were discussed. Methods : A list of translated Classical texts in the field of Korean Medicine from the National Central Library collection was organized. Afterwards, the publication date, field, author information and content of the translated version were analyzed. Results : Of Chinese Medical texts, those from the Ming and Qing periods were most translated, while major texts pre-dating the Song period were left out. In addition, while texts in the fields of Shanghan-Jingui, comprehensive medical texts, scriptures, medical theories that were high in demand in educational and clinical sectors were actively translated, those in secondary fields were insufficiently translated. Of medical texts of Korea, those from the Joseon period were mostly translated, including major texts such as the Donguibogam and various kinds of texts reflecting research demands. Conclusions : In the future, texts that have not been translated need to be prioritized while basic elements need to be identified for better quality translation. To enable quantitative and qualitative expansion of Korean Medical Classical Texts translation, institutional and academic support is crucial.

신규간호사의 항암 투약 간호 지식, 수행도 및 교육 요구도가 항암 투약 오류에 미치는 영향 (The influence of new nurses' knowledge, nursing performance, and educational needs of chemotherapy medication on chemotherapy medication errors)

  • 송언정;이규영
    • 한국간호교육학회지
    • /
    • 제29권2호
    • /
    • pp.115-123
    • /
    • 2023
  • Purpose: This study aimed to identify the factors affecting the chemotherapy medication errors made by new nurses and to use the results as basic data for the development of a chemotherapy medication nursing education program for new nurses. Methods: This cross-sectional study was conducted with 189 new nurses working at a general hospital and a tertiary general hospital in Korea. The data collection period was from January 11 to February 7, 2021. The data collected during this study were analyzed using the IBM SPSS statistics version 25.0 program. Data analysis included descriptive statistics, independent t-test, ANOVA, and logistic regression analysis. Results: One factor influencing chemotherapy medication errors was new nurses' educational needs (odds ratio=.18, p=.005). As educational needs increased, the probability of making errors in medication was reduced by .18. Conclusion: It is necessary to develop a chemotherapy medication education program tailored to the educational needs of new nurses by considering the education period, method, and content, with a focus on the content with high demand from new nurses.

조선후기 한시(漢詩)에 나타난 음식문화 특성 - 기속시(紀俗詩)를 중심으로 - (A Study on the Food Culture of Chinese Poetry in the Latterly Chosun Dynasty - Focused on Korean Customs Poetry -)

  • 김미혜;정혜경
    • 한국식생활문화학회지
    • /
    • 제22권5호
    • /
    • pp.528-543
    • /
    • 2007
  • This study is on the characteristics of the food culture through the written folk poetries which were described vividly the life customs peculiar to the Nation and so much that were Korean National customs papers written by Chinese poetry - during the latter part of the Choson period. It is used the way which is studied by the literature after collection, analysis, synthesis the analyzed second material of the latter part of the Choson period's written folk poetries. It is summarized to below five contents of the characteristics of the food culture through the written folk poetries. The first is the various and abundant food culture. The second, that is the food culture of praying blessing and praying a fruitful. The people prayed to be a year of abundance of food stuff and train oneself and have medicine for their health, but there has been repeated seasonably an occult action for being blessing which had settled down to the beginning of the year's customs. The third, it is the food culture of share tender feeling with among the people. The fourth, it is the food culture of business and economy's growth image. The fifth, it is the food culture of an image of economic distress and the trouble between rich and poor.