• Title/Summary/Keyword: critical review

Search Result 2,110, Processing Time 0.029 seconds

Sources, Components, Structure, Catalytic Mechanism and Applications: a Critical Review on Nicotinate Dehydrogenase

  • Zhi Chen;Xiangjing Xu;Xin Ju;Lishi Yan;Liangzhi Li;Lin Yang
    • Journal of Microbiology and Biotechnology
    • /
    • v.33 no.6
    • /
    • pp.707-714
    • /
    • 2023
  • Plant-derived insecticide-neonicotinoid insecticides (NIs) played a crucial role in the development of agriculture and food industry in recent years. Nevertheless, synthesis of these nitrogen-containing heterocyclic compounds with an effective and greener routing remains challenging especially to the notion raise of "green chemistry" and "atom economy". While bio-catalyzed methods mediated by nicotinate dehydrogenase (NDHase) then provide an alternative. The current review mainly focuses on the introduction of sources, components, structure, catalytic mechanism and applications of NDHase. Specifically, NDHase is known as nicotinic acid hydroxylase and the sources principally derived from phylum Proteobacteria. In addition, NDHase requires the participation of the electron respiratory chain system on the cell membrane. And the most important components of the electron respiratory chain are hydrogen carrier, which is mainly composed of iron-sulfur proteins (Fe-S), flavin dehydrogenase (FAD), molybdenum binding protein and cytochromes. Heterologous expression studies were hampered by the plasmid and host with high efficiency and currently only Pseudomonas entomophila L48 as well as Comamonas testosterone was successfully utilized for the expression of NDHase. Furthermore, it is speculated that the conjugate and inductive effects of the substituent group at position 3 of the substrate pyridine ring exerts a critical role in the hydroxylation reactions at position 6 concerning about the substrate molecular recognition mechanism. Finally, applications of NDHase are addressed in terms of pesticide industry and wastewater treatment. On conclusion, this critical review would not only deepen our understanding of the theory about NDHase, but also provides the guideline for future investigation of NDHase.

Development of a Critical Pathway of Bullectomy for Spontaneous Pneumothorax Patients (자연기흉으로 폐기포절제술을 받은 환자를 위한 표준진료지침서 개발)

  • Kim, Mi Kyoung;Yu, Seung Hum;Lee, Doo Yun;Son, Young Mo
    • Quality Improvement in Health Care
    • /
    • v.9 no.1
    • /
    • pp.34-51
    • /
    • 2002
  • Background : The purpose for this study is to develop a critical pathway of bullectomy for spontaneous pneumothorax patients. Methods : For this study a conceptual framework of critical pathway was developed through a review of the literature including five critical pathways which are currently being used in USA, and opinions of the critical pathway development team members at Y university hospital. In order to identify the service contents required by these patients and to draw up a preliminary critical pathway, 33 cases of medical records of patients who had received bullectomy for spontaneous pneumothorax between September, 2000 to August, 2001 at the Respiratory Center of Y university hospital in Seoul was analyzed. Results : In order to test the clinical validity of the preliminary critical pathway, it was applied to ten patients who had received bullectomy for spontaneous pneumothorax from October, 2001 to December, 2001. The average discharge day was 4.89th post operation day, six patients discharged on the fourth post operation day which was the expected day, one patients discharged one day earlier than the expected day, one patient discharged three days later than the expected day, and one patient discharged six days later than the expected day. There were variances between the critical pathway and the actual practice. The variances came from tests, medications, and treatments. One item that showed variance in clinical applications was complemented, and three items were decided not to be corrected for the final determination of the critical pathway. Conclusion : This critical pathway is applicable to the care of patients with bullectomy for spontaneous pneumothorax, but it needs more clinical applications to grasp varied variances.

  • PDF

Critical Review of Simulation Training's Effects on Nursing Students (간호학생을 대상으로 한 시뮬레이션 실습 효과에 대한 비판적 고찰)

  • Choi, Eun Hee
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.21 no.5
    • /
    • pp.141-149
    • /
    • 2020
  • This study was undertaken to analyze the intervening effect of nursing simulation among nursing students. This was a critical review study, and data obtained were reviewed using various data bases, including RISS, KISS, NDSL, DBpia, and KRI. The terminologies entered in the data base were nursing and simulation. Selected studies were assessed for methodological quality; and narrative, descriptive or one group post-test studies were excluded from the analysis. Ed. Notes: Please review for accuracy. I have suggested the edit to the best of my understanding. Finally, 234 studies were included for investigation. Results included studies of nursing simulation intervention in Korea, commencing from 2008. One group pre-post test and two group post test were more designed in journals comparing to master thesis or doctoral dissertation. Clinical practice was the most frequently studied aspect by both the assessor and student in the two groups' pre-post test design. Nursing competences associated with dependent variables during simulation were integrated skills, critical thinking, communication, cooperation, professional recognition and leadership. The two groups pre-post design explored more varied competences as compared to other designs. Considering the results obtained, we conclude that simulation intervention is an effective teaching method for nursing students to help improve their clinical practice. However, further studies are required to assess the impact of critical thinking and problem solving.

A Design for and Evaluation of a Critical Thinking Class for New Community Health Practitioners (신규 보건진료원을 위한 비판적 사고 수업설계 및 운영 평가)

  • Park, Ji Yeon;Seo, MinGyu;Kim, Hyoung Suk;Yoo, Kyung Hee;June, Kyung Ja
    • The Journal of Korean Academic Society of Nursing Education
    • /
    • v.21 no.1
    • /
    • pp.141-149
    • /
    • 2015
  • Purpose: This study was carried out to describe the process and evaluation of a critical thinking class for new community health practitioners. Methods: The case study design was used to develop and evaluate a critical thinking class for 46 participants in the community health practitioners training program. The class was held two hours a week for 8 weeks. Critical thinking disposition was tested before and after the class and critical skill was graded according to the final test score. Data analysis was performed using descriptive statistics and paired t-tests using SPSS WIN 20.0. Results: Clinical critical thinking competences were identified through the literature review. The case situations with questions guiding the problem-solving process were developed and used for group discussion. Critical thinking disposition of participants was determined to have increased slightly after having taken the class. 17.4% of the participants had a competency level high enough to solve a problem and half of them stayed at the level of understanding of critical thinking. Compared with the class's satisfaction with the relevance to their jobs, the satisfaction with the learning method and instructor was high. Conclusion: The findings of this research will serve as the basis for developing critical thinking classes for community health nurses in order to improve their critical thinking competence.

The characteristics of critical realism in Alexander McQueen's fashion collection (알렉산더 맥퀸 패션 컬렉션에 나타난 비판적 리얼리즘 특성)

  • Lee, Youmin;Lee, Younhee
    • The Research Journal of the Costume Culture
    • /
    • v.29 no.2
    • /
    • pp.153-166
    • /
    • 2021
  • In this study, the artistic background and formative nature of representative 19th century realist artists Gustave Courbet and Honoré Daumier were analyzed and applied in a fashion context. By displaying representational desires (necessary adhesions of man and society) in their work, they became characteristic matrixes of critical realism and to perceive critical realism. The purpose of the study was to apply the characteristics of critical realism to the contemporary fashion collections of Alexander McQueen. Research was conducted to analyze the characteristics that appear in the field of fashion and to review methods of expression and internal aesthetics displayed through various aspects of fashion design. Characteristics of critical realism were analyzed by researching the formativeness and periodical background of the paintings of Courbet and Daumier. Based on these characteristics, analysis was conducted to identify critical realism in the fashion collections of Alexander McQueen. Data and scope included fashion information sites, internet photo data, and video material. Critical realist characteristics were categorized into five types as follows: 'The proper borrowing of extremely realistic subjects signifies', 'satirical reconstruction and narrative composition', 'antipathetic distortions and abject representations', 'critical reproductions based on technology', and 'the maximization of ambivalent sexuality'. It was concluded that the characteristics of critical realism (recognized by the common formation of Courbet and Daumier) also appeared in Alexander McQueen's fashion collection but were inherited in a form that transcended pictorial expression due to the overall difference in use of visual arts.

The Impact of Coupang Reviews on Product Sales : Based on FCB Grid Model (쿠팡 리뷰가 상품 매출에 미치는 영향 분석 : FCB Grid Model을 기준으로)

  • Ryu, Sung Gwan;Lee, Ji Young;Lee, Sang Woo
    • The Journal of Information Systems
    • /
    • v.31 no.2
    • /
    • pp.159-177
    • /
    • 2022
  • Purpose Online reviews are critical for sales of online shopping platforms because they provide useful information to consumers. As the eCommerce market grows rapidly, the role of online reviews is becoming more important. The purpose of this study is to analyze how online reviews written by domestic consumers affect product sales by classifying the types of products. Design/methodology/approach This study analyzed how the effects of review characteristics(reviewer reputation, reviewer exposure, review length, time, rating, image, and emotional score) on the usefulness of online reviews differ depending on the product types. Subsequently, how the impact of review attributes (review usefulness, number of reviews, ratings, and emotional scores) on product sales differs according to each product type was compared. Based on the FCB Grid model, the product type was classified into high involvement-rational, high involvement-emotional, low involvement -rational, and low involvement-emotional product types. Findings According to the analysis result, the characteristics of reviews useful to consumers were different for each product type, and the review attributes affecting product sales were also different for each product type. This study confirmed that it revealed that product characteristics are major consideration in evaluating the review usefulness and the factors affecting product sales.

Starter/Alternator Systems for HEV and Their Control: A Review

  • Boldea, Ion.
    • KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
    • /
    • v.4B no.4
    • /
    • pp.157-169
    • /
    • 2004
  • Motor & generator operation at widely variable speeds is needed in various applications but hybrid and electric vehicle (HEV) stand out today, as quite a few companies are launching this year their mass production of HEVs. The quest for better starter-generators is far from ended, though. The present review paper unfolds a comparative critical evaluation of various starter-generators and their control for HEV. Induction, interior PM synchronous, transverse-flux PM synchronous, switched reluctance, together with claw-pole and biaxial excitation PM synchronous (BEGA) configurations with their control are all considered in system evaluations.

Review of Qualitative Research on Home Economics Education (가정과 교육에서의 질적 연구 동향과 과제)

  • 류상희
    • Journal of Korean Home Economics Education Association
    • /
    • v.13 no.1
    • /
    • pp.1-11
    • /
    • 2001
  • Home economics education professional knowledge consists of empirical interpretive critical science component. Thus it is imperative that the alternative research perspectives be used to gain certain knowledge for the profession of home economics education. In human inquiry and education there is a growing concern that the dominant research paradigm positivist natural science model is inadequate to address the phenomena constructed by persons. However, Home economics education has not examined and almost utilized alternative research perspectives. This review will probe research logic and resecrach methodology of qualitative inquiry within home economics education and highlight the shift from positivism to post-positivism.

  • PDF

Marital Relations: A Crithical Review and Development of Measurement (결혼만족도 연구와 척도의 고찰을 통한 새로운 연구 방향과 척도의 모색)

  • 정현숙
    • Journal of the Korean Home Economics Association
    • /
    • v.35 no.1
    • /
    • pp.191-204
    • /
    • 1997
  • Reserarch on marital satisfaction adjustment or quality has been one of the most frequently studies area of the investigation in the family field. Yet there has been many problems with the theory and empirical work in this area especially in the area of definitional ambiguity problems of dimensionality level of analysis and problems of measurement. This article is a critical review of this work including both theoretical and empirical problems that typically have occured with the previous research Also a section on suggested modifications for future research in this area and a section of suggestion of new marital satisfaction measurement are included.

  • PDF

A Study on the Indicators of Informatization Maturity Level and Critical Success Factors in Small and Medium Manufacturers: A Case of Automotive Parts Industry (중소제조업체의 정보화 성숙도 지표 개발 및 성공요인 도출: 자동차 부품업체 사례)

  • Joo, Suk-Jung;Yoo, San-Gin;Kim, Na-Rang;Hong, Soon-Goo
    • Information Systems Review
    • /
    • v.7 no.2
    • /
    • pp.195-211
    • /
    • 2005
  • The purpose of this case study is to suggest the indicators of an informatization maturity level and critical success factors in small and medium automotive parts manufacturers. To achieve this goal, literature reviews and case studies on 7 automotive parts manufacturers that confirmed to implement information systems successfully, were conducted. Based on literature review, the six functional processes including development, production scheduling, purchase, production, order, and support process, were defined. Each process has 5 levels from 1(low level) to 5(high level) depending on the degree of informatization maturity. In addition, critical success factors were discovered with interviews of CEO or CIO. The results of this study can be applied to any companies which are implementing or intended to the information systems near future.