• Title/Summary/Keyword: cultivate

Search Result 1,063, Processing Time 0.028 seconds

Map based cloning of resistance to bacterial leaf blight gene using QTL analysis in rice

  • Du, Xiao-Xuan;Kim, Kyung-Min
    • Proceedings of the Korean Society of Crop Science Conference
    • /
    • 2017.06a
    • /
    • pp.138-138
    • /
    • 2017
  • Agriculture is the most primitive civilized Activities of mankind but also the propellant of civilization development. Because it is the most basic material goods source of mankind. Among these materials rice is one of the most important part of these, we call them the substance of survival. From the beginning of the agricultural activities to the present we have experienced three industrial revolutions and are experiencing the Fourth Industrial Revolution. With the development of science and technology makes the efficiency of agricultural production is higher and higher, but compared with the original we are facing the same problem: natural disasters; pests and diseases; now also face the depletion of resources, environmental degradation and other issues. Therefore, improve and cultivate new crop varieties to make it better resistance and more production for better develop modern agriculture. It's very helpful for human social development. And also it is the responsibility and task of modern molecular breeding. In this study, I used bacterial leaf blight to find a better resistance gene to improve the resistance of rice. Frist Cultivate k3 of bacterial leaf blight, than inoculation by leaf clipping method (Kauffman,1973) in CNDH and SNDH population at 40days after rice transplanting. Check the lesion length by inoculation plants at 14days after inoculation, and record data for QTL analysis program. Than I get 4 intervals in 3 different chromosomal regions. I found these defense genes in the 4 intervals. So I used NCBI Justbio, Rapdb, etc. to finding these genes in physical map, than design primer for map base cloning. At last these defense genes will be employed in further research for introduction of the gene to the parental plant and rice breeding for solving food crisis.

  • PDF

Local Autonomy and Training of public Librarians (지방자치와 사서직 공무원 연수)

  • Lee, Myoung-Gyu
    • Journal of the Korean Society for Library and Information Science
    • /
    • v.36 no.3
    • /
    • pp.311-330
    • /
    • 2002
  • A public librarian is an occupation, which requires long-term. continuous training and difficult study to acquire and cultivate professional knowledge and skills. It is a necessity to achieve new knowledge, information and skills via appropriate retraining. A training system is the method which gives chances of retraining to public librarians. After examining some of the problems with the existing training system, it is apparent that the direction of training system needs to be decentralized. That is each local branch should be autonomous in terms of new training for librarians. For the method of training system, each autonomous unit would integrate the different theories to apply to the community-at-large and invite practical specialists from the local community to lecture. The training classes would be elective in that the each librarian could choose the classes he/she wants to take and give them credits for that, but the certificate for the class would also go towards completion for the required technical training. Finally, the utilization of cyber-education should be introduced, and the library association's role strengthened, to help public librarians cultivate their specialties.

Possibility to Develope the Multistage Culture System for Larvae Cultivation by Computer Simulation (컴퓨터 시뮬레이션을 통한 치어 사육용 다단계 배양시스템의 개발 가능성 탐색)

  • 곽중기;조만기
    • Journal of Life Science
    • /
    • v.14 no.2
    • /
    • pp.235-238
    • /
    • 2004
  • The possibility for developing multistage culture system to cultivate larvae by computer simulation with basic experiments was investigated. This culture system was composed of 3 stages. At the 1st stage, Chlorella sp. were cultivated and at 2nd stage Chlorella sp. were supplied to rotifer (Brachionus plicatilis), and rotifer were supplied to larvae at the 3rd stage. In this study, Chlorella sp. were cultivated by batch culture to search for the possibility of continuous feeding to rotifer at 2 nd stage. The maximum specific growth rate ($\mu$$_{max}$) of Chlorella sp. at the logarithmic phase was 0.56 [1/day]. Rotifer was cultivated by fed-batch culture at the feeding rate of Chlorella sp., $10^3$, $10^4$, $10^{5}$ and $10^{6}$ [cells/rotiferㆍh] to search for the relation between the feeding rate of Chlorella sp. and the growth rate of rotifer. As the results, the minimum feeding rate of Chlorella sp. was 2.8 ${\times}$ $10^4$ [cells/rotiferㆍday] in the multistage culture system, then the change of rotifer concentration at 2nd stage was simulated by computer. The required amount of rotifer for the growth of larvae was also increased as the growth of larvae. On the 9th day of the culture, the rotifer uptake rate of larvae was 250 [cells/rotiferㆍday]. Based on these basic experiments and results, It was suggested that the possibility of multistage culture system to cultivate larvae with continuous feeding of Chlorella sp. and rotifer.r.

A Study on Cultivativation of a Fisheries Expert to revitalize Transfer of Fisheries Management Right (수산업 경영이양 활성화를 위한 수산전문인력 양성방안 연구)

  • Park, Jong-Un;Cha, Cheol-Pyo;Hong, Ki-Jin
    • Journal of Fisheries and Marine Sciences Education
    • /
    • v.23 no.3
    • /
    • pp.361-373
    • /
    • 2011
  • In line with post-1970s industrialization, the manpower shortage in fishing villages has been fueled by rapid desertion; young adults and middle-aged people have tended to avoid fishing by migrating to cities, driving the emergence of a national issue in terms of securing fisheries management succession. For the fisheries industry to maintain competitiveness, we need to cultivate young adults and middle-aged people to be leaders of the domestic fishing industry through promoting inspiration for the fishing industry, teaching fisheries expert knowledge, and fostering the ability to promote business. In addition to safe supply of marine products through continued fisheries operation, securing young and skilful workers is essential in order to promote balance development of domestic industries, including job creation. The study therefore seeks to provide measures to foster specialists in order to enable the transfer of management through an opinion survey of fishermen. To cultivate specialists for enabling the transfer of management, the following solution should be promoted at the state level. First, to support the introduction of young and talented workers to the fisheries industry through transfer of management, Second, in order to enable the transfer of management, change is required first in the fisheries industry for it to become a value-added industry. Third, despite fisheries being a composite industry that is syncretized to tertiary industries from primary industries, the fisheries industry is still recognized as a labor intensive industry, which reflects the current status of fisheries education.

Development of Clothing Life Education to Cultivate Subject Competencies based on 2015 Revised Technology & Home Economics Curriculum : Focusing on Integration of the Curriculum-Class-Evaluation (2015 개정 기술·가정과 교육과정에 따른 교과역량 함양을 위한 의생활 수업 개발 - 교육과정-수업-평가의 일체화를 중심으로 -)

  • Kim, Seo hyun
    • Journal of Korean Home Economics Education Association
    • /
    • v.30 no.1
    • /
    • pp.115-128
    • /
    • 2018
  • The purpose of this study is to explore the direction of home economics education in order to strengthen students' competencies. We explored the direction of competency-based home economics class, and teaching and learning methods for strengthening subject competencies, then develop class case. The main research results of this study are as follows. First, in order to cultivate subject competencies, students should be the center of the education, class and evaluation by integrating of the curriculum-class-evaluation, so that they can grow into the subject of life. Second, to enhance subject competencies, case example of the home economics was presented focusing on integrating curriculum-class-evaluation. It is expected that this study will be able to integrate curriculum-class-evaluation into the concrete realization of subject competencies in home economics education.

Comparative Analysis of Chemistry Curriculum between Korea and New Zealand (한국과 뉴질랜드의 화학 교육과정 비교)

  • Kim, Hyun Jung
    • Journal of the Korean Chemical Society
    • /
    • v.62 no.3
    • /
    • pp.235-242
    • /
    • 2018
  • The purpose of this study is to analyze the chemistry curriculum between Korea and New Zealand. Both countries state that they want to cultivate their key competencies through the curriculum, and Korea' key competencies are similar to New Zealand'. Also, we find a strong correlation between key competencies of Korea science and achievement aims of the nature of science in New Zealand. Specially, the achievement standards that cultivate the key competencies are presented separately in New Zealand curriculum and NCEA, and confirms the achievement level through internal evaluation. By comparison, the curriculum content for chemistry is a good fit because of the overlap in the content. The Chemistry I is in the 7th level of New Zealand curriculum and the Chemistry II is in the 7th and 8th levels of New Zealand. However, there are some differences in hydrocarbon, ideal gas equation, colligative property and understanding of spectroscopic data.

A Study of the Historical Development and Directions of Premedical Education (의예과 교육의 역사적 발전과 교육과정 편성 방향 고찰)

  • Jung, Hanna;Yang, Eunbae B.
    • Korean Medical Education Review
    • /
    • v.19 no.3
    • /
    • pp.115-120
    • /
    • 2017
  • Despite the importance of how the premedical education curriculum is organized, the basic direction of the curriculum has not been evaluated at a fundamental level. In order to explore the basic directions of the premedical education curriculum, this study examined medical education as a university education, the historical basis of premedical education, and the direction of the premedical education curriculum. Historically, as medical education was incorporated into the university education system, premedical education developed based on basic science and liberal arts education. Accordingly, the direction of the premedical education curriculum began to split into two approaches: one believing in a basic science-based education intended to serve as the foundation of medical training, and the other believing in a liberal arts-based education intended to cultivate the qualities of a doctor. In recent years, however, the binary division in the direction of premedical education has ceased to exist, and the paradigm has now shifted to an agreement that premedical education must cultivate the basic scientific competence required for learning medical knowledge as well as the social qualities that a doctor should have, which are cultivated through the liberal arts. Furthermore, it has been asserted that the direction of premedical education should move toward the qualities that will be required in the future. With the fourth industrial revolution underway, the role of doctors is now being re-examined. This means that today's medical education must change in a future-oriented way, and the direction of the premedical education curriculum must be on the same page.

Effect of Exposed Length of Rootstocks on the Occurrence of Bitter Pit and Tree Vigor of 'Gamhong'/M.26 Apple Cultivar

  • Kang, Seok-Beom;Moon, Young-Eel;Kweon, Hun-Joong;Park, Moo-Yong;Park, Woo-Jung;Sagong, Dong-Hoon
    • Korean Journal of Soil Science and Fertilizer
    • /
    • v.49 no.5
    • /
    • pp.449-455
    • /
    • 2016
  • 'Gamhong' apple cultivar which was bred by National Institute of Horticultural and Herbal Science, has high sugar contents, large types of fruit and mid-season types of cultivar. However, 'Gamhong' apple tree is very sensitive cultivar to bitter pit. Therefore, many farms have not solved the problems on bitter pit to cultivate 'Gamhong' apple tree. This study was carried out to find out the exposed length of rootstocks on the occurrence of bitter pit and fruit quality of 'Gamhong'/M.26 apple tree and seek the ideal cultivation strategy to decrease bitter pit to cultivate it. For this research, ten-years-old 'Gamhong'/M.26 apple trees were used. The difference among the treatments of the exposure of rootstock of RL (5 cm), RM (15 cm) and RH (20 cm) from the soil surface was observed with 4 repetition from 2010 to 2011. Decreased exposure of rootstocks resulted in more vigorous growth, taller height, and greater number of shoots. N and K/Ca of RH was tend to be lower than RM and RL, whereas as the exposure of rootstock decreased, fruit weight and bitter pit increased. Therefore, occurrence of bitter pit in RH was significantly lower than that of RM and RL treatment and fruit weight also decreased. There was no difference on nutrient contents of leaf and the fruit quality by the exposed of rootstock in 'Gamhong' M.26 apple tree. To reduce the occurrence of bitter pit, it may be helpful to keep the optimum exposure of rootstock within 20 cm from the soil surface.

A Study on Problem-Solving Ability and Classification of Mathematical Problems. (문제 해결력과 수학문제의 분류 관점에 관한 연구)

  • Kim Cheol Hwan;Park Bae Hun;Jung Chang Hyun
    • The Mathematical Education
    • /
    • v.26 no.2
    • /
    • pp.9-13
    • /
    • 1988
  • Mathematics education is generally to cultivate mathematical thought. Most meaningful thought is to solve a certain given situation, that is, a problem. The aim of mathematies education could be identified with the cultivation of mathematical problem-solving ability. To cultivate mathematical problem-solving ability, it is necessary to study the nature of mathematical ability and its aspects pertaining to problem-solving ability. The purpose of this study is to investigate the relation between problem-solving ability and classficational viewpoint of mathematical verbal problems, and bet ween the detailed abilities of problem-solving procedure and classificational viewpoint of mathematical verbal problems. With the intention of doing this work, two tests were given to the third-year students of middle school, one is problem-solving test and the other classificational viewpoint test. The results of these two tests are follow ing. 1. The detailed abilities of problem-solving procedure are correlated with each other: such as ability of understanding, execution and looking-back. 2. From the viewpoint of structure and context, students classified mathematical verbal problems. 3. The students who are proficient at problem-solving, understanding, execution, and looking-back have a tendency to classify mathematical verbal problems from a structural viewpoint, while the students who are not proficient at the above four abilities have a tendency to classify mathematical verbal problems from a contextual viewpoint. As the above results, following conclusions can be made. 1. The students have recognized at least two fundamental dimensions of structure and context when they classified mathematical verbal problems. 2. The abilities of understanding, execution, and looking- back effect problem-solving ability correlating with each other. 3. The instruction emphasizing the importance of the structure of mathematical problems could be one of the methods cultivating student's problem-solving ability.

  • PDF

A Study on Cultivating Creativity through Various and Divergent Thinking Activities - Focused on Mathematics Education in Elementary School - (다양한 확산적 사고활동을 통한 창조성 육성에 관한 연구 - 초등학교 수학교육을 중심으로 -)

  • Lim Mun-Kyu
    • Journal of Elementary Mathematics Education in Korea
    • /
    • v.10 no.1
    • /
    • pp.1-19
    • /
    • 2006
  • It is generally accepted that fostering creative thinking is a core in mathematics education and accumulating research products on that topic is really needed. In this study, I hoped to investigate and verify that in mathematics education it was possible to cultivate creative thinking through various and divergent activities, For this purpose, I delat with some illustrations, in which students learned mathematics through the operational activities using teaching tools, problem solving and problem posing activities, and finally they seemed to foster creative mathematical thinking. In conclusion of this paper, I have suggested that in math education those activities should be used to cultivate students' creative thinking in kindergarten or early elementary school. Also I asserted that it is urgently need to store up research products about various materials and methods for those mathematics teaching and learning.

  • PDF