• Title/Summary/Keyword: expanded method

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Light and Electron Microscopy Studies Elucidating Mechanisms of Tomato Leaf Infection by Pseudocercospora fuligena

  • Zelalem Mersha;Girma Birru;Bernhard Hau
    • The Plant Pathology Journal
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    • v.39 no.2
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    • pp.181-190
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    • 2023
  • The fungal pathogen Pseudocercospora fuligena, known to affect tomatoes in the tropics and subtropics, has been reported from temperate climates including the United States and Turkey in recent years. In this study, an isolate from fresh tomatoes and the disease it causes were characterized and infection mechanisms investigated. Macroscopically, both sides of tomato leaves show indistinct effuse patches but prolific production of fuliginous lesions is conspicuous on the abaxial side first but also on the adaxial side later on as infection progressed. Microscopically, fascicles of conidiophores (11-128 ㎛ × 3.5-9 ㎛) arising from stromata and conidia with up to 12 septations were observed. Molecular characterization of the isolate revealed high homology (99.8%) to other P. fuligena isolated from tomatoes in Turkey. Out of the 10 media tested, P. fuligena grew significantly well and sporulated better on unsealed tomato oatmeal agar and carrot leaf decoction agar, both supplemented with CaCO3. Direct transfer of conidia from profusely sporulating lesions was the easiest and quickest method of isolation for in-vitro studies. Light and scanning electron microscopy on cleared and intact tomato leaves further confirmed stomatal penetration and egress as well as prevalence of primary and secondary infection hyphae. In situ, blocked stomatal aperture areas of 154, 401, and 2,043 ㎛2 were recorded at 7, 12, and 17 days after inoculation, respectively. With the recent expanded horizon of the pathosystem and its consequential impact, such studies will be useful for a proper diagnosis, identification and management of the disease on tomato worldwide.

A Study on Construction of the Union Cataloging by WIKI Cataloging Philosophy (WIKI cataloging 정신을 통한 공동목록 완성에 관한 연구)

  • Nam, Young-Joon
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.20 no.2
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    • pp.75-89
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    • 2009
  • This study propose the union cataloging based on wiki cataloging method which guarantee the quality of imported bibliographic data by outsourcing. Wiki cataloging means to improves a quality of union catalog used the cooperation of librarians who have the knowledge and experience to the cataloging. The methods are 1) policy of wiki cataloging 2) development of wiki systems 3) establishment of wiki cataloging rule based on advanced librarian cooperation. Especially, advanced librarian take charge of an 245, 260, 300 fields as basic bibliographical elements, general librarians participate expanded fields.

Development of a High-Efficiency KRISO Series Propeller (KRISO 고효율 계열 프로펠러 개발)

  • Ilsung Moon;Gundo Kim;Cheolsoo Park;Seunghyun Hwang
    • Journal of the Society of Naval Architects of Korea
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    • v.60 no.6
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    • pp.416-423
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    • 2023
  • Recently, the design point of the propeller is gradually changing due to the demand for energy saving and environmental protection. Until recently, self-propulsion model tests were conducted using stock propellers and geometry information was provided to propeller designers, but the range of existing stock propellers did not keep up with the changing design points, and the range of series propellers required in the initial design was also insufficient. Future propeller performance requires high performance and eco-friendliness, and the need for expansion of series propellers has increased. In order to respond to future needs and provide a wide range of advantages in propeller design, KRISO manufactures about 100 series propellers and builds series data through a model tests. In this paper, the approach method for deriving the representative optimal shape to be applied to the 4-blade series propeller in the initial stage of series propeller development was summarized.

A study on Materialization of Virtual Reality for Environmental Interface (환경인터페이스를 통한 가상의 현실화에 관한 연구)

  • Kang, Yoon Jeong
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.6
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    • pp.545-551
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    • 2023
  • In this paper, we present the environment interface as a method of bringing the virtual environment in the interface to reality, and explain the experience of the virtual that can be sensed in the real environment. Expanded experience by discussing the transparency of the interface and interactivity that expands synesthesia as a condition for an interface to express virtual without distinction from the real environment, and establishing a discussion on the composition and inevitability of an environment interface that satisfies these conditions The environment interface is discussed as a tool for realizing the interface that extends from the real environment, the expansion of cognition into the environment by interaction, and the virtual for immersion into the environment due to these conditions.

Development Strategies for Attracting Foreign Direct Investment in Uzbekistan

  • Ji Young JEONG;Sun Mi KIM;Changho CHOI;Ji Young HAN;Yong Geun KIM;Mamurbek KARIMOV
    • The Journal of Economics, Marketing and Management
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    • v.11 no.5
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    • pp.57-67
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    • 2023
  • Purpose: An evaluation of Uzbekistan's steps towards competitiveness for FDI globally is presented in this paper. Specifically, the purpose of this paper is to analyze the case of Uzbekistan, and to determine the strategies that can be implemented to increase the competitiveness in attracting foreign investment. Research design, data and methodology: To investigate the FDI environment and identify effective strategies, Global RPM and QSPM analyses were conducted in addition to in-depth interviews with experts. In particular, this study uses the method of Global RPM analysis to make a comprehensive evaluation and analysis on globalization, rationality, and professionalism and morality dimensions of FDI in Uzbekistan. Results: According to the analysis, the conditions of political situation, financial stability, legal frameworks, as well as economic environment of the country play a significant role in bringing in FDIs from abroad. Moreover, based on the results, Uzbekistan scored lowest on globalization, indicating that the country has a low level of integration and openness to the global economy and society. Conclusions: Uzbekistan can boost its productive capacity and GDP growth with FDI, but it has to overcome many structural and logistical obstacles. Furthermore, adhering to the chosen strategies, policymakers can leverage FDI to stimulate economic growth, leading to the generation of new jobs and expanded opportunities in Uzbekistan.

Identification of Supply Chain Management Performance Assessment Criteria for Textile and Apparel Enterprises in Distribution Science

  • Nhu-Mai Thi NONG;Duc-Son HA
    • Journal of Distribution Science
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    • v.22 no.7
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    • pp.73-82
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    • 2024
  • Purpose: This study aims to identify the assessment criteria on textile and apparel supply chain management performance. Research design, data, and methodology: An integrated method of Delphi, quantitative survey, and ANP, in which Delphi with Kamet principle was applied to define the set of criteria, quantitative survey with reliability and validity test was utilized to ensure the match between the set of criteria and the whole textile and apparel industry, and ANP was used to derive weights of these criteria. Results: The set of supply chain management performance evaluation criteria composes of seven criteria namely order fulfillment quality, agility, costs, asset management, information sharing, innovation, and product development and 19 sub-criteria. Conclusions: This study theoretical contribution is the proposition of the set of evaluation criteria on supply chain performance. Regarding practical contribution, the study findings are guidelines for T&A companies in assessing and improving their supply chain capability. However, the findings are only for Vietnamese T&A context. Future research, therefore, may be expanded to other regions or countries' T&A industry. Additionally, future step to this study may be the utilization of other techniques of MCDM or methodological approaches like multiple regression, PLSSEM in defining weights of criteria or performance evaluation.

MBRDR: R-package for response dimension reduction in multivariate regression

  • Heesung Ahn;Jae Keun Yoo
    • Communications for Statistical Applications and Methods
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    • v.31 no.2
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    • pp.179-189
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    • 2024
  • In multivariate regression with a high-dimensional response Y ∈ ℝr and a relatively low-dimensional predictor X ∈ ℝp (where r ≥ 2), the statistical analysis of such data presents significant challenges due to the exponential increase in the number of parameters as the dimension of the response grows. Most existing dimension reduction techniques primarily focus on reducing the dimension of the predictors (X), not the dimension of the response variable (Y). Yoo and Cook (2008) introduced a response dimension reduction method that preserves information about the conditional mean E(Y | X). Building upon this foundational work, Yoo (2018) proposed two semi-parametric methods, principal response reduction (PRR) and principal fitted response reduction (PFRR), then expanded these methods to unstructured principal fitted response reduction (UPFRR) (Yoo, 2019). This paper reviews these four response dimension reduction methodologies mentioned above. In addition, it introduces the implementation of the mbrdr package in R. The mbrdr is a unique tool in the R community, as it is specifically designed for response dimension reduction, setting it apart from existing dimension reduction packages that focus solely on predictors.

Effects of the Enhanced Recovery After Surgery (ERAS) Program for Colorectal Cancer Patients Undergoing Laparoscopic Surgery

  • Jeongwon Yeom;Hee-Sook Lim
    • Clinical Nutrition Research
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    • v.11 no.2
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    • pp.75-83
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    • 2022
  • This study sought to investigate the effects of the enhanced recovery after surgery (ERAS) program on postoperative recovery and nutritional status in patients with colorectal cancer undergoing laparoscopic surgery. A total of 37 patients were included: 19 in the experimental group and 18 in the control group. The experimental group was supplemented with carbohydrate drinks before and after surgery, and the control group was maintained with fasting and water intake in the traditional method. Both care management and nutrition education were implemented for both groups. Patients were evaluated for physical condition, clinical indicators, blood tests, pain, length of stay, nutritional status, and nutrient intake. Use of the ERAS program for the experimental group resulted in shorter length of stay (p = 0.006), less pain (p < 0.001), and a lower rate of malnutrition (p = 0.014) compared with controls. In conclusion, carbohydrate drinks provide great advantages by reducing discomfort, such as pain or thirst, during fasting in patients after colon cancer surgery, helping patients to eat comfortably and actively, minimizing insulin resistance, maintaining nitrogen balance, and reducing infection and anastomosis leakage. For use of ERAS as a standardized program, repeated and expanded research is needed, and a Korean-style ERAS should be prepared by using this approach for various diseases.

Generation of Highly Expandable Intestinal Spheroids Composed of Stem Cells

  • Ohman Kwon;Won Dong Yu;Ye Seul Son;Kwang Bo Jung;Hana Lee;Mi-Young Son
    • International Journal of Stem Cells
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    • v.15 no.1
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    • pp.104-111
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    • 2022
  • Many of early findings regarding intestinal stem cells (ISCs) and their niche in the human intestine have relied on colorectal cancer cell lines and labor-intensive and time-consuming mouse models. However, these models cannot accurately recapitulate the physiologically relevant aspects of human ISCs. In this study, we demonstrate a reliable and robust culture method for 3D expanding intestinal spheroids (InSexp) mainly comprising ISCs and progenitors, which can be derived from 3D human intestinal organoids (HIOs). We did functional chararcterization of InSexp derived from 3D HIOs, differentiated from human pluripotent stem cells, and optimization culture methods. Our results indicate that InSexp can be rapidly expanded and easily passaged, and show enhanced growth rates via WNT pathway activation. InSexp are capable of exponential cell expansion and cryopreservation. Furthermore, in vitro-matured HIO-derived InSexp proliferate faster than immature HIO-derived InSexp with preservation of the parental HIO characteristics. These findings may facilitate the development of scalable culture systems for the long-term maintenance of human ISCs and provide an alternative platform for studying ISC biology.

Effect of Aquatic Exercise on Functional Activity in Duchenne Muscular Dystrophy: Case Report (수중운동이 듀센 근이영양증 아동의 기능적 활동에 미치는 영향: 사례보고)

  • Na-Yeon Ye;Eun-Ju Lee
    • Journal of the Korean Society of Physical Medicine
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    • v.19 no.3
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    • pp.65-72
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    • 2024
  • PURPOSE: This study examined the effects of aquatic exercise on the functional activities of patients with Duchenne muscular dystrophy. METHODS: This study was a single-group experimental ABA design in three children with Duchenne muscular dystrophy. The study period was 20 weeks, consisting of 4 weeks of baseline, 12 weeks of intervention, and 4 weeks of maintenance, with 40 minutes of aquatic exercise once a week in the intervention. The Duchenne muscular dystrophy upper extremity patient-reported outcome scale and the expanded version of the Hammersmith Functional Motor Scale version of the Hammersmith Functional Movement Scale were used to determine the effects of aquatic exercise on the patient's functional activity. The measurements were taken five times: once at baseline, three times at intervention, and once at maintenance. The data collected in this study were analyzed using SPSS version 25.0, with a statistical significance level of α of .05, and the Friedman test, a non-parametric method was conducted. RESULTS: The functional activity scores improved significantly after 12 weeks of the intervention compared to the baseline and were maintained for up to 4 weeks after the intervention was complete. CONCLUSION: Aquatic exercise is an effective intervention for improving the functional activity of children with Duchenne muscular dystrophy and should be utilized in clinical practice.