• Title/Summary/Keyword: systematic relationship

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Helicobacter pylori Eradication and Risks of Metachronous Recurrence after Endoscopic Resection of Gastric Adenoma: A Systematic Review and Meta-Analysis (위선종의 내시경 절제 후 이시성 재발의 예방을 위한 헬리코박터 제균 치료: 체계적 문헌분석 및 메타분석)

  • Kim, Jie-Hyun;Nam, Su Youn;Chun, Jaeyoung;Youn, Young Hoon;Park, Hyojin
    • Journal of Digestive Cancer Reports
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    • v.8 no.2
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    • pp.91-96
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    • 2020
  • The effect of Helicobacter pylori (H. pylori) eradication on the development of metachronous recurrence after endoscopic resection (ER) of gastric adenoma is not well defined. The aim of this study was to assess the efficacy of H. pylori eradication after ER of gastric adenoma for the prevention of metachronous recurrence. A systematic literature review and meta-analysis were conducted using the databases Ovid-MEDLINE, EMBASE, Cochrane Library, KoreaMed, and KMBASE. Thus, a systematic review and meta-analysis was performed to investigate this relationship. Pooled risk ratio for metachronous gastric lesions with regard to H. pylori eradication was calculated, and heterogeneity was also measured. Five eligible studies were finally identified in systematic review, and included in meta-analysis. H. pylori eradication was associated with overall 55% lower odds of metachronous events (RR=0.55; 95 % CI 0.34-0.92). Based on the best available evidence, eradication of H. pylori can also provide protection against metachronous recurrence after ER of gastric adenoma.

Estimation of reflectivity-rainfall relationship parameters and uncertainty assessment for high resolution rainfall information (고해상도 강수정보 생산을 위한 레이더 반사도-강수량 관계식 매개변수 보정 및 불확실성 평가)

  • Kim, Tae-Jeong;Kim, Jang-Gyeong;Kim, Jin-Guk;Kwon, Hyun-Han
    • Journal of Korea Water Resources Association
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    • v.54 no.5
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    • pp.321-334
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    • 2021
  • A fixed reflectivity-rainfall relationship approach, such as the Marshall-Palmer relationship, for an entire year and different seasons, can be problematic in cases where the relationship varies spatially and temporally throughout a region. From this perspective, this study explores the use of long-term radar reflectivity for South Korea to obtain a nationwide calibrated Z-R relationship and the associated uncertainties within a Bayesian inference framework. A calibrated spatially structured pattern in the parameters exists, particularly for the wet season and parameter for the dry season. A pronounced region of high values during the wet and dry seasons may be partially associated with storm movements in that season. Overall, the radar rainfall fields based on the proposed modeling procedure are similar to the observed rainfall fields. In contrast, the radar rainfall fields obtained from the existing Marshall-Palmer relationship show a systematic underestimation. In the event of high impact weather, it is expected that the value of national radar resources can be improved by establishing an active watershed-level hydrological analysis system.

Transport Infrastructure Investment and Its Impacts on Rural Development : Exploratory Analysis for Policy Evaluation (교통 인프라 투자와 농촌지역 발전에 미치는 영향 - 정책평가를 위한 탐색적 분석 -)

  • Lee, Wonho
    • Journal of the Korean association of regional geographers
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    • v.21 no.3
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    • pp.503-514
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    • 2015
  • This study aims to analyze the relationship between transport infrastructure investment and rural development in Korea in a more systematic and empirical way. To do so, we formulate research framework to examine the multi-faceted relationship through extensive literature review and carry out a descriptive study on the spatial patterns of road investment and rural development in Korea. Finally, using the structural equation model, this study carries out the exploratory empirical analysis on the direct and indirect relationship between transport infrastructure investment and rural development. The study finds that the transport infrastructure investment in rural Korea impacts clearly on both the population base promotion and production and income growth through better accessibility. In addition, the investment has an indirect effects on the production and income growth through its influence on the population base promotion. This implies that the transport infrastructure investment in rural Korea so far exerts both long-term and short-term influences on rural development through various channels of impacts.

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An Observation on Dries Van Noten's Collections (2) - Focus on Men's Collections from 1992 S/S to 2014 F/W - (드리스 반 노튼 컬렉션 고찰 (2) - 1992년 S/S ~ 2014년 F/W 남성복을 중심으로 -)

  • Park, Shinmi
    • Journal of the Korean Society of Costume
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    • v.66 no.3
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    • pp.51-74
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    • 2016
  • The purpose of this research is to analyze the relationship between the inspirations and designs of Dries Van Noten's Men's collections from 1992 S/S to 2014 F/W. The specific questions of this research are as follows: what are the important design features of the Dries Van Noten's Mixed collections from 1985 S/S to 1991 F/W? What are 'the roots of inspiration' of Dries Van Noten's Men's collections from 1992 S/S to 2014 F/W, and what are the aesthetic criterions of Noten's works? How can the roots of inspiration be categorized and what are its features? How did these roots of inspiration influence the Noten's designs? The paper is a reference of how ideas turn to practical works, and what the relationship between inspiration and design. Researchers utilized a qualitative research method providing a systematic review of the previous studies by analyzing the content. To conclude, roots of inspiration of Dries Van Noten's Men's collections can be classified into nine categories: 'Interpretation', 'Ethnic', 'Multiple Contents', 'Subculture', 'Region', 'Artist', 'Fashion Item', 'Sports', and 'New Trend'. Through the roots of inspiration, sensibility of Belgium, England, Italy, French chic, inquiry of ethnic, artist, sports, the neuter gender image, 1950's, 1960's & 1970's trend & style of street fashion, elegance for men, romanticism, zoot, rock 'n' roll, teddy boy, mods, punk, new romantic and 19th century's Anglo-Saxon style are extracted and applied to the designs through cross impact. The identity of Dries Van Noten's Men's collections are cross culture contents and harmony of the old generation and new generation.

The Analysis of the Relationship Toward the MIS Project Members: The Prospective of IS Personality Typology (MIS프로젝트 구성원들간의 관계분석 : IS 유형이론을 중심으로)

  • Son, Dal-Ho;Kang, Moon-Sig
    • Asia pacific journal of information systems
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    • v.7 no.2
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    • pp.185-198
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    • 1997
  • Recently the formation of the project team to construct a MIS system is generalized and the relationship of the user and the system personnel in the project team should be important factor in the effectiveness of the team. However, the systematic research about the personality typology of the user and the system personnel is scarcely verified. Considering this necessity, this study is, using the IS personality typology, tried to find the relationship of the user and the system personnel in the project team. One of Jung(1924)'s personality typology is introvert and extrovert, however, this typology is founa to have many facets related with personality category. Recently Ackoff(1996) has tried this category more meaningful, which are subjective-internalizer, subjective-externalizer objective-internalizer one objective-externalizer. Moreover, he has proposed the methodology which could find the assimilarity among the team members. On the basis of this typology, this research is attempted to find the difference of the characteristics of the user and the system personnel. Through this research, we can understand the difference of the characteristics of the user and the system personnel and this understanding can make help us operating the team more effectively. The result has suggested that the effectiveness of the team has relied on the personality type of the user and the system personnel. Especially the personality type of new member who will join into team is an important factor in the effectiveness of teaming. Therefore, when we have a new member into team, we have to consider the personality type of new member. Moreover, the personality type of the management is an another critical factor which should be considered.

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Genetic Variation and Phylogenetic Relationship of Korean Ginseng based on cpDNA trnL-F, nrDNA ITS and ETS Sequences (엽록체 DNA trnL-F 및 핵리보조옴 DNA ITS, ETS 염기서열에 의한 고려인삼의 유전적 변이와 계통학적 유연관계)

  • Bang Chan Kuk;Kim Ju Hwan;Baek Myeong Hyun;Kim Chang Sik;Um Dong Myeong;Kim Dong Hee
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.18 no.6
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    • pp.1699-1709
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    • 2004
  • Genetic variations and relationship based on the sequences of cpDNA trnL-F gene, nrDNA ITS and ETS region among the twenty four taxa including Panax ginseng C.A. Meyer and its related species were investigated. And taxonomic status and molecular phylogenetic relationship between P. ginseng and related groups were discussed. Molecular systematic data from cpDNA and nrDNA sequences were very useful to elucidate the genetic variations and relationships among the treated taxa. It was found that P. ginseng is the independent unique species with distinct genetic limitation from the related species such as P. quinquefolius, P. japonicum, P. notoginseng and P. pseudoginseng. P. ginseng including cultivated types as well as wild ones formed monophyletic group with high genetic similarities. P. quinquefolius and P. japonicum were the most related sister groups of P. ginseng based on the molecular phylogenetic results in this study.

The Relationship between Some Blood Parameters and Antioxidant Enzyme Activity in Korean Postmenopausal Women (일부 폐경 후 여성에서 영양상태 및 골대사 관련 일부 혈액 지표와 항산화효소 활성과의 관련성 분석)

  • Lee, Haeng-Shin;Kim, Mi-Hyun;Lee, Da-Hong;Sung, Chung-Ja
    • Journal of Nutrition and Health
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    • v.39 no.5
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    • pp.476-484
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    • 2006
  • To elucidate the relationship between blood parameters related bone metabolism and antioxidant enzyme activity in postmenopausal period 60 women residing in Iksan area were recruited. Food and nutrient intake of each individual subject were estimated by 24-hour recalls of 3 non-consecutive days. The biochemical markers including total protein, albumin, osteocalcin (intact bone gla protein; BOP), calcium, phosphorus and hemoglobin were measured in fasting blood. In addition, parameters of antioxidative capacity including the activities of superoxide dismutase (SOD), glutathione peroxidase (GPx) , catalase (CAT) and total antioxidant capacity (TA) were monitored in blood, also. The mean age, height, weight, and BM! of subjects were 64.8 years, 151.1 em, 59.5 kg $26.0\;kg/m^2$, respectively. The mean SOD, GPx, and CAT activities were 138.5 U/ml, 1,273.8 U/ml and 314.3 kU/l respectively, and TA was 1.16 mmol/l without significant difference among different age groups. BMI was positively correlated with SOD activity (p < 0.01). SOD activity and CAT activity showed positive correlation with serum albumin (p < 0.05) and hemoglobin (p < 0.01). In conclusion, this study revealed that antioxidant enzyme activity holds a significant relationship with the blood parameters like as serum albumin and hemoglobin in postmenopausal women and further systematic research is needed to investigate the their relation mechanism.

Relationship between Knowledge about Hepatitis B among Dental Hygiene Students Received Education and Clinical Practice (일부 치위생과 학생들의 교육수혜 및 임상실습에 따른 B형간염에 대한 이론적 지식의 관련성)

  • Choi, Sung-Suk;Lee, Kye-Hee
    • The Journal of Korean Society for School & Community Health Education
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    • v.14 no.2
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    • pp.75-83
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    • 2013
  • Objective: The purpose of this study was to obtain the basic data for the establishment of the curriculum from the analysis of knowledge about hepatitis B among dental hygiene students. Methods: Data was collected from the students of two colleges majoring in dental hygiene in Daegu, using questionnaire. They were the students of the 1st, 2nd, and 3 grade, in total 390 student. The analysis was made using t-test, (one-way ANOVA), and multiple linear regression analysis. These were conducted using spss 14.0 version Results: Hepatitis B in the theoretical knowledge 'yes' if the answer 'When one of the family member is contaminated with Hepatitis the other members have to take the physical examination and vaccination against Hepatitis' to 86.7 % was the highest. The educational experience(p<0.01) and hepatitis B vaccination(p<0.001) of the mean difference between the groups investigated were statistically significant. Third grade, the higher the knowledge of hepatitis B was found to be lower relationship showed a statistically significant negative(p<0.05), clinical experience, the more experience, the more hepatitis B vaccinations were higher statistical knowledge relationship showed a significant positive(p<0.01). Conclusion: Currently dental hygiene curriculum is offered as a regular dental infection control subject, but more specific and systematic infection prevention subjects are required through continuing education program. In addition, for the admission of the students majoring in dental hygiene hepatitis B vaccination plan should be mandatory.

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The Effect of Management Innovation on the Relationship between Corporate Social Responsibility and Financial Performance (국내 제조기업의 경영혁신이 사회적책임활동과 재무성과간의 관계에 미치는 영향)

  • Oh, Sang-Hoon;Park, Hyeon-Suk
    • Journal of Digital Convergence
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    • v.16 no.6
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    • pp.175-185
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    • 2018
  • The purpose of this study is to present the direction of CSR activities for sustainable management by analyzing the mediating effect of management innovation on the relationship between corporate social responsibility (CSR) activities and financial performance. In order to verify the research hypothesis, the results of the questionnaire of 517 employees of domestic manufacturing companies were obtained and analyzed using SPSS 18.0 and AMOS 20.0. First, CSR activities have a positive effect on management innovation. Second, management innovation and financial performance showed a positive relationship. Third, we confirmed the mediating effect of management innovation on CSR activities and financial performance. Lastly, we can confirm only the partial control effect according to the size of company in the relation of CSR activity and management innovation. It is necessary to establish systematic theories between CSR activities and financial performance through further analysis of various parameters in the future.

Effect of Ginseng on Blood Pressure: A Systematic Review and Meta-Analysis (인삼이 혈압에 미치는 영향: 체계적 문헌고찰 및 메타분석)

  • Ha, Hye Min;Oh, Da Hyun;Chun, Pusoon
    • Korean Journal of Clinical Pharmacy
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    • v.26 no.2
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    • pp.163-171
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    • 2016
  • Objective: A meta-analysis was performed to determine effect of ginseng on blood pressure. Methods: The databases of PubMed, Embase, Cochrane Library, RISS, DBpia, KISS, and Koreamed were searched for all published studies from inception to January 2016. The following terms were used: "ginseng", "hypertension", and "blood pressure". Using the Review Manager 5, mean differences (MDs) were pooled to measure the effect of ginseng on blood pressure compared to that of placebo. Results: Eleven randomized controlled trials were included. In this meta-analysis, ginseng treatment significantly lowered systolic blood pressure (SBP) in a dose-independent way (MD: -1.99, p = 0.04). In subgroup analysis, 8-12 week consumption of ginseng achieved significantly greater reduction in SBP (MD: -3.14, p = 0.03), while single administration of ginseng failed to show BP-lowering effect. When ingested over 8-12 weeks, ginseng significantly lowered diastolic blood pressure (DBP) (MD: -1.96, p = 0.03). No significant association was found between ginseng dose and the magnitude of BP-lowering effect. However, a significant positive relationship was observed between baseline SBP level and the magnitude of SBP reduction (r = 0.848, p = 0.033). Such a relationship was not seen in DBP. Conclusion: Consumption of ginseng for 8-12 weeks achieved significant reductions in SBP and DBP in a dose-independent way. There was a significant positive relationship between baseline SBP level and the magnitude of SBP reduction.