• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 1996.10a
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• pp.21-21
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• 1996

• Korean Journal of Veterinary Research
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• v.10 no.2
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• pp.1-5
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• 1970

In these studies the efficracy of plate, tube agglutination and agar-gel precipitin test were compared for the detection of pullorum infected chickens. From all the chickens showing positive reaction in agar-gel precipitin test, Salmonella pullorum organisms were isolated.

• 한국약용작물학회:학술대회논문집
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• 2008.05a
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• pp.162-163
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• 2008

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.29 no.1
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• pp.5-26
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• 2018

Increased mental and psychological wounds and problems in modern humans has resulted in improve the recognition about the importance and necessity of bibliotherapy, and an increase in research related to bibliotherapy. We need to analyze the trend of bibliotherapy research at this point in time from various viewpoints for future development of research on bibliotherapy and establishment of recognition for bibliotherapy. Therefore, in this study, we conducted a comparative analysis of trends of bibliotherapy research between Korea and Japan. The study focuses on research academic papers related to bibliotherapy published in Korea and Japan from 1960 to 2016, and the was analyzed and examined from three viewpoints - (1) Research paper, (2) Utilization of terms, and (3) Academic field & Research Method.

• Journal of Information Technology Services
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• v.15 no.3
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• pp.157-171
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• 2016

As unemployment rates and concerns about turnover keep growing, the need for information is also increasing. In these situations, the job reviews which share information about the company catch people's attention because they are usually created by people who worked at the company. The development of SNS and mobile environments has led to an increase in the web services that provide job reviews. For example, Jobplanet is a job review service in Korea, and Glassdoor.com offers a similar service in the US. Despite this attention, however, research utilizing job reviews is insufficient. This paper asks whether there are differences in ratios of job satisfaction factors by industry, using LDA topic modeling and co-occurrence analysis to explore the differences. Through the results of LDA, we find that the ratios of job satisfaction factors are similar by industry. At the same time, the results of co-occurrence analysis show that the co-occurrence frequency of some job satisfaction factors appears high: pay and welfare, balance of work and life, company culture. We expect that the result of this research will be helpful in comparative analysis of job satisfaction factors by industry. Furthermore, in this paper we suggest how to use the job review data in organizational behavior research.

• Journal for History of Mathematics
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• v.33 no.1
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• pp.33-53
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• 2020

Euclid's Elements has been considered as the stereotype of logical and deductive approach to mathematics in the history of mathematics. Nonetheless, it has been criticized by its dryness and difficulties for learning. It is worthwhile to noticing mathematicians' struggle for providing some alternatives to Euclid's Elements. One of these alternatives was written by a French scientist, Pardies who called it 'Elemens de Geometrie ou par une methode courte & aisee l'on peut apprendre ce qu'il faut scavoir d'Euclide, d'Archimede, d'Apllonius & les plus belles inventions des anciens & des nouveaux Geometres.' A precedent research presented its historical meaning in traditional mathematics of China and Joseon as well as its didactical meaning in mathematics education with the overview of this book. However, it has a limitation that there isn't elaborate comparison between Euclid's and Pardies'in the aspects of contents as well as the approaching method. This evokes the curiosity enough to encourage this research. So, this research aims to compare Pardies' Elements and Euclid's Elements. Which propositions Pardies selected from Euclid's Elements? How were they restructured in Pardies' Elements? Responding these questions, the researcher confirmed his easy method of learning geometry intended by Pardies.

• The Plant Pathology Journal
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• v.29 no.4
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• pp.435-439
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• 2013

Rice blast fungus, Magnaporthe oryzae, inflicts serious damage to global rice production. Due to high variability of this fungal pathogen, resistance of newly-released rice cultivars is easily broken down. To understand the population structure of M. oryzae, we analyzed the genetic diversity of the Korean population using multilocus microsatellite typing. Eleven microsatellite markers were applied to the population of 190 rice isolates which had been collected in Korea for two decades since the 1980's. Average values of gene diversity and allele frequency were 0.412 and 6.5, respectively. Comparative analysis of the digitized allele information revealed that the Korean population exhibited a similar level of allele diversity to the integrated diversity of the world populations, suggesting a particularly high diversity of the Korean population. Therefore, these microsatellite markers and the comprehensive collection of field isolates will be useful genetic resources to identify the genetic diversity of M. oryzae population.

• Journal of Distribution Science
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• v.16 no.7
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• pp.25-33
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• 2018

Purpose - This research is to examine how different Korean retailers are from Japanese ones, in terms of taking a social responsibility for product scandals. Through a comparative analysis, the authors will provide some implications for retailers in Korea. Research design, data, and methodology - Based on the existing literature studied how retailers as well as manufacturers responded to food poisoning and product scandals, the authors compared Korea with Japan, in terms of taking a social responsibility. Results - As soon as food safety scandals occurred in Japan, a local government quickly ordered Snow Brand to recall and stop producing problematic milk products. In addition, retailers have stopped displaying them on their store shelves to minimize the number of victims. By stopping selling them, Japanese retailers took a social responsibility for product scandals. Conclusions - The authors found that retailers play a very important role in protecting customer rights. Moreover, customers have become more and more aware of the roles of retailers taking a social responsibility for social issues. The research proposes that a government has to develop the laws to protect customers from food poisoning and product safety issues effectively and that boycott campaigns should be legally protected by a government and promoted by customers.

• BMB Reports
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• v.47 no.2
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• pp.110-114
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• 2014

Fibrin is a natural provisional matrix found in wound healing, while type I collagen is a major organic component of bone matrix. Despite the frequent use of fibrin and type I collagen in bone regenerative approaches, their comparative efficacies have not yet been evaluated. In the present study, we compared the effects of fibrin and collagen on the proliferation and differentiation of osteoblasts and protein adsorption. Compared to collagen, fibrin adsorbed approximately 6.7 times more serum fibronectin. Moreover, fibrin allowed the proliferation of larger MC3T3-E1 pre-osteoblasts, especially at a low cell density. Fibrin promoted osteoblast differentiation at higher levels than collagen, as confirmed by Runx2 expression and transcriptional activity, alkaline phosphatase activity, and calcium deposition. The results of the present study suggest that fibrin is superior to collagen in the support of bone regeneration.

• Journal of Educational Research in Mathematics
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• v.8 no.2
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• pp.709-722
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• 1998

This thesis is to see if the classes using problem posing is effective to improve the students' grades in math. So I set up research subjects as follow. 1. Do the classes focused on problem posing have any influence on the students' achievement\ulcorner 2. Do the classes focused on problem posing have any different influence on the students' achievement according to their levels\ulcorner 3. Do the classes focused on problem posing have any different influence on the students' achievement according to the categories in math\ulcorner I close four classes in the first grade of K middle school in Kangnung, Kangwon province for this thesis. First I divided them into two groups. Each group consisted of two classes. One is the experimental group. The other is the comparative group. The experimental group was taken classes using problem posing. The comparative group was taken classes by the traditional teaching method. And then I analyzed the difference of the achievement between two groups. As a result of this research, I came to the conclusion as follow. First, the classes focused on problem posing is more effective than traditional teaching method for the improvement of the students` achievement Second, both the classes using problem posing and the traditional teaching method doesn`t affect to the advanced students. Third, the classes using problem posing is more effective to the intermediate students and lower level students than the traditional teaching method. Especially it is very effective in teaching the students the linear equation.