• 제목/요약/키워드: Comparative research

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Comparative Modeling and Molecular Dynamics Simulation of Substrate Binding in Human Fatty Acid Synthase: Enoyl Reductase and β-Ketoacyl Reductase Catalytic Domains

  • John, Arun;Umashankar, Vetrivel;Krishnakumar, Subramanian;Deepa, Perinkulam Ravi
    • Genomics & Informatics
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    • 제13권1호
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    • pp.15-24
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    • 2015
  • Fatty acid synthase (FASN, EC 2.3.1.85), is a multi-enzyme dimer complex that plays a critical role in lipogenesis. This lipogenic enzyme has gained importance beyond its physiological role due to its implications in several clinical conditions-cancers, obesity, and diabetes. This has made FASN an attractive pharmacological target. Here, we have attempted to predict the theoretical models for the human enoyl reductase (ER) and ${\beta}$-ketoacyl reductase (KR) domains based on the porcine FASN crystal structure, which was the structurally closest template available at the time of this study. Comparative modeling methods were used for studying the structure-function relationships. Different validation studies revealed the predicted structures to be highly plausible. The respective substrates of ER and KR domains-namely, trans-butenoyl and ${\beta}$-ketobutyryl-were computationally docked into active sites using Glide in order to understand the probable binding mode. The molecular dynamics simulations of the apo and holo states of ER and KR showed stable backbone root mean square deviation trajectories with minimal deviation. Ramachandran plot analysis showed 96.0% of residues in the most favorable region for ER and 90.3% for the KR domain, respectively. Thus, the predicted models yielded significant insights into the substrate binding modes of the ER and KR catalytic domains and will aid in identifying novel chemical inhibitors of human FASN that target these domains.

가공식품의 나트륨함량표시 개선을 위한 소비자 인식도 조사 (Consumer Perception Survey for the Improvement of Nutrition Labeling (Nutrition Comparative Claim) on Sodium Content)

  • 강은진;이화정;황경미;구용의;김건희
    • 한국식생활문화학회지
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    • 제32권3호
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    • pp.244-257
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    • 2017
  • Nutrition labeling can provide information in order for people to select products suitable for their own health, and sodium content labeling for processed foods is important since sodium is one of the main causes of cardiac diseases. This study had carried out to propose the desirable sodium content labeling by conducting surveys on the awareness of sodium content in processed foods, understanding of sodium content labeling, and requirements for new sodium comparative claims. The survey period was from 12th of September, 2016 through the 24th, during which a self-administered questionnaire survey was given to 1,003 persons through demographic quota sampling by age and region. As a result of the survey, 66.0% of respondents assuring nutrition labeling answered they check sodium content labeling, whereas 83.2% were aware of excessive intake of sodium having a negative effect on health. Exactly 49.9% of respondents answered that the current system for nutrition labeling on processed foods does not help one to understand the content of sodium, whereas 72.9% answered they wanted to compare sodium contents with those of other products when buying or taking processed foods. As 92.5% cited the importance of sodium comparative claims made by processed foods, preparation of a new system for food labeling should be considered by which consumers can easily compare sodium contents with those of other similar products.

Comparative Analysis of the Perception of Family Functioning by Heads of Families with and without Cancer Members During Illness

  • Sahebihagh, Mohamad Hasan;Amani, Leila;Salimi, Saleh;Feizi, Aram;Khalkhali, Hamid Reza;Atri, Shirin Barzanjeh
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권9호
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    • pp.4275-4279
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    • 2016
  • Background: Cancer is a major health problem due to the aging population with increasing deaths. Family functioning is affected by cancer diagnosis and treatment. The aim of this study was to comparative analysis of the perception of family functioning by heads of families with and without cancer members during illness, focusing on changes or probable changes. Materials and Methods: This comparative study was conducted on two groups (families with a member of the cancer and controls without a family member with cancer). The families were of patients referred to the clinics and hospitals of Imam Khomeini, Taleghani and Omid of Urmia city, the number of samples being 148 for cases and 176for the control group. To collect the data, valid and reliable family functioning (FAD) was applied, a 60-item questionnaire with seven dimensions, with heads of families. To analyze the data SPSS- 23 Software was used for descriptive and analytical statistics. Significance level was defined p <0.05. Results: Among the seven items : problem solving, communication, roles, emotional response, emotional involvement, behavior control and overall functioning, only differences for average scores of problem-solving were statistically significant. Discussion: Contrary to common perception of severe damage for family functioning in families with cancer members, results of this study indicate that functioning in terms of family caregivers is more or less similar to that of the families with other diseases. Only in problem-solving item do these families experience more difficulty. Conclusion: According to the research findings, in nursing from families with cancer patient, it is recommended to focus more on the problem-solving item of the families.

한국과 일본의 건강증진정책 비교 (Comparative Study on the Health Promotion Policy in Korea and Japan)

  • 남은우;조은주;남정자
    • 보건교육건강증진학회지
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    • 제21권3호
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    • pp.19-33
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    • 2004
  • The focus of this paper is to critically evaluate the contemporary health promotion policy of g Korea and Japan. The primary purpose of this comparative research project is to stimulate policy debate and to strengthen the design and implementation of evidence-based policies that improve population health and reduce health related disparities. For the purpose of the research object we adopted analysis of health promotion(HP) sources. The HP Source which is still under development in Europe, is a potentially valuable tool for global use. This European Commission funded project lead by the London School of Hygiene and Tropical Medicine has brought together organisations from all of the European Union Member States, plus Norway, Iceland, Latvia, Switzerland and the Czech Republic to contribute their data. The findings of this research will be conclude by making recommendations for further comparative studies and in particular how EUHPID and the HP Source tool and database can be expanded for use at global level through the IUHPE. The result as follows: 1. The Health Promotion Act enacted 1995 in Korea and 2000 in Japan. The government has a national document on HP titled Health Plan 2010 and Healthy Korea 2010 in Korea and Healthy Japan 21 in Japan. 2. The Health Plan 2010 of Korea contains 14 goals, i.e. life expectancy, smoking, nutrition, mental health, dental health, reproductive health, hypertension, cerebrovascular diseases, arthritis, diabetes mellitus, cardiovascular diseases, and cancer. It should be emphasized that the Korean HP national document adds 3 goals of health expectancy, reproductive health, and arthritis to its Japanese counterpart. Health Plan 2010 of Korea specifies 37 objectives in 14 goals, and Healthy Japan 21 proposes 48 objectives and 80 targets in 9 goals. 3. Health Plan 2010 and Healthy Japan 21 have not been evaluated yet, and no regular systematic monitoring reporting of HP policies is available in Korea and Japan yet. 4. National Health Promotion Fund is a financial source of HP programs at the national level in Korea. Its annual amount is 736 billion Won(equivalent to approximately 640 million US$), otherwise no specific Health Promotion Fund in Japan.

한국과 일본의 실과 및 기술.가정과교육의 역사적 변천 비교 (Comparative Study on Historical changes of Practical Arts Education and Technology-Home Economics Education in Korea and japan)

  • 박순자;신상옥
    • 한국가정과교육학회지
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    • 제12권3호
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    • pp.65-76
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    • 2000
  • Comparative Study on Historical Changes of Practical Arts Education and Technology-Home Economics Education in Korea and Japan This dissertation is a comparative study on Practical Arts(Home Economics) Education and Technology-Home Economics Education of Korea and Japan. I established two research objectives to conduct the research : To understand the differences in historical changes in Practical Arts Education and Technology-Home Economics of the two countries: And to grope for the new direction of Home Economics Education. Research findings are as follows : Japan was also ahead of Korea for about two decades in terms of putting Home Economics Education in practice at elementary schools. Practical Arts Education Started to emerge in Elementary school system in 1955, which had been originated in vocational education before the year 1945 in Korean However, from the 3th curriculum Practical Arts Education Curriculum put emphasis on home lives. Regarding the characteristics of education from the perspectives of historical changes at Korean Junior-high schools after the year 1945. Home Economics Education had been regarded as “female subject”until the 1980s and was integrated into regular curricula for co-education in the middle of the 1990s. when the 6th Curriculum was activated. Technology-Home Economics started to emerge in Japan in 1962. while the subject Home Economics Education was integrated into curricula for males in high school as well in 1989. In the Korean 7th Curriculum, the combined subject Technology-Home Economics is divided into three categories. A remarkable difference from japanese Technology-Home Economics is that korean curriculum has no division between required and elective. In conclusion. I observe that both Korean and Japanese curricula for Home Economics Education were originated in Confucianism. However, unlike Korean situation, current Japanese Home Economics Education takes a significant part as a continuing and required subject for both primary and secondary co-education.

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귀추전략 과학수업이 초등학생의 과학적 개념 이해와 초인지에 미치는 영향 (The Effects of Science Classes Using Abductive Strategies Applied to Elementary School Students on Scientific Concept Understanding and Meta-cognition)

  • 김희연;강버들;유병길
    • 수산해양교육연구
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    • 제28권4호
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    • pp.1133-1142
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    • 2016
  • The purpose of this study was to verify the effects of science classes using abductive strategies on the scientific concept understanding and meta-cognition. The subjects included two classes of sixth graders from K Elementary School in B Metropolitan City and they divided into two groups. Research group was composed of 21 students(10 boys, 11 girls) and comparative group was composed of 21 students(11 boys, 10 girls). In order to achieve aims of this study, proper contents to apply abductive strategies were selected from the first semester science curriculum for sixth graders. Also five-steps study papers were designed to elicit abductive reasoning. While the research group received 20 times of reframed science lessons using abductive strategies, the comparative group received common science lessons according to the teachers' manual. The results of this study are as follows. First, science classes using abductive strategies were effective for the scientific concept understanding. Also there were statistically significant differences between the research group and the comparative group in overall science sub-domain. In the process of hypothesis formulating, students tried to find out scientific causes thoroughly to present the optimal explanation and they concentrated on the analysis of each scientific concept. It is thought that this process contributed to better understanding in scientific concepts. Second, science classes using abductive strategies were effective for improving meta-cognition. There were statistically significant differences between the two groups and especially in monitoring that is one of sub-factors of meta-cognition. It indicates that hypothesis formulating process gave positive effect on meta-cognition by stimulating critical thinking and manifesting elaboration.

데이터베이스를 이용한 『금궤요략』 처방(處方) 분석 연구 (Analysis of 『Jinguiyaolue』 Prescriptions using Database)

  • 김성호;김성원;김기욱;이병욱
    • 대한한의학원전학회지
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    • 제32권3호
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    • pp.131-146
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    • 2019
  • Objectives : The aim of this paper is to study the methodology for effectively analyzing the "Jinguiyaolue" prescriptions using database, and to explore possibilities of applying the data construction and query produced in the process to comparative research with other texts in the future. Methods : Using "Xinbianzhongjingquanshu(新編仲景全書)" as original script, the contents of "Jinguiyaolue" were entered into the database, in which one verse would be separated according to content for individual usage. Also, data with medicinal construction and disease pattern information of the previously constructed "Shanghanlun" database designed for comparison with other texts was applied for comparative analysis. Results : For input and analysis, 6 tables and 12 queries were made and used. Formulas were accessible by using herbal combinations, and applications of these formulas could be assembled for comparison. Formulas were also accessible by using disease pattern combinations, and combinations of herbs and disease pattern together were also applicable. In comparison with other texts, examples and frequency of usage of herbs could be relatively accurately compared, while disease patterns could not easily be compared. Conclusions : Herbal combinations, disease pattern combinations could yield related texts and herb/disease pattern combinations of the prescriptions in the "Jinguiyaolue", which shortened time needed for research among formulas in texts. However, standardization research for disease pattern is necessary for a more accurate comparative study that includes disease pattern information.

연구윤리제도의 형성과정에 관한 연구: 미국을 중심으로 (A Study on the Policy Formation Process of Research Ethics System: Focusing on the United States)

  • 이송호;정일환
    • 비교교육연구
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    • 제28권6호
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    • pp.1-28
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    • 2018
  • 2005년 소위 '황우석교수 사태' 이후에 국내의 연구윤리에 대한 본격적인 점검 실태파악과 이에 대비하는 정책을 추진하면서 기관 및 연구자의 윤리의식을 강화하기 위한 다양한 노력이 이루어지고 있다. 그러나 연구윤리에 대한 정부의 개입수준에 대해서는 학자들 간에 여전히 이견이 존재한다. 이에 본 연구는 한국보다 앞서 대학연구윤리제도를 확립하고 발전시킨 미국의 연구윤리에 대한 정부개입의 형성과정을 분석하고, 한국의 연구윤리정책에 대한 시사점을 도출하고자 하였다. 미국의 연구윤리제도의 형성과정과 법령들을 분석한 결과, 첫째, 학계에서 연구윤리원칙이나 가이드라인이 먼저 제시된 이후에 연방정부의 입법 및 규제 정책이 수립되었다. 둘째, 연구윤리에 대한 책임은 연방정부와 연구기관이 공유하되, 1차적 책임은 연구기관이 지고 연방정부는 2차적 최종 책임을 지고 있다. 셋째, 연방정부는 비윤리적 연구에 대한 최소한의 엄격한 규제를 가하고 있다. 넷째, 비윤리적 연구의 책임을 개인 차원에서 구조적 차원으로 확대해서 검토할 필요가 있다.

연구중심대학의 도서관 지원과 연구경쟁력에 관한 연구 (Comparative Analysis on Current Status of Research University Libraries between Korea and the United States)

  • 한혜영
    • 한국문헌정보학회지
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    • 제39권4호
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    • pp.25-44
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    • 2005
  • 지식기반사회에서 대학의 연구기능 강화에 대한 필요성이 증대됨에 따라 연구중심대학 육성에 대한 관심이 높으나, 국내의 경우는 연구중심대학을 구분하는 객관적이고 구체적인 기준이 마련되어 있지 않으며 또한 연구중심대학의 핵심 지원체계로서 도서관에 대한 역할도 정립되어 있지 않은 상태이다. 본 연구에서는 세계 국가 경쟁력 1순위인 미국의 연구중심대학 선정 기준을 만족하는 국내 연구중심대학을 선별하고 한국과 미국 연구중심대학의 전반적인 현황 및 이들 대학도서관의 세부적인 현황을 비교${\cdot}$분석하였다. 연구중심대학 도서관이 갖추어야 할 각종 예산 인원, 그리고 정보자원에 관하여 국내 대학의 현황을 파악하고 추후 연구중심대학으로서 연구경쟁력을 제고할 수 있는 지원체계 구축에 필요한 기초 자료를 제공하고자 하였다. 아울러 대학도서관에 대한 각종 투자가 궁극적으로 대학의 연구경쟁력을 제고한다는 점을 입증하기 위한 도서관 투자와 연구논문발표 실적과의 상관관계를 분석하였다. 연구중심대학 도서관으로서의 우리나라 현황을 분석한 본 연구 결과가 향후 국제적인 연구경쟁력 확보를 위한 대학도서관의 역할 정립 및 육성에 대한 필요성을 인지하는 계기가 되기 바란다.