• The Plant Pathology Journal
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• v.37 no.6
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• pp.681-686
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• 2021

It is difficult to distinguish melanose and melanoses-like symptoms with the naked eye because they appear similar. To accurately detect melanose symptoms caused by Diaporthe citri from melanose-like symptoms, we developed PCR-based specific primers Dcitri by aligning the internal transcribed spacer (ITS) region of D. citri with the ITS of Diaporthe cytosporella, Diaporthe foeniculina, Colletotrichum gloeosporioides, Botrytis cinerea, Alternaria citri, and Fusarium oxysporum found on citrus peel. PCR results showed that the specific product was amplified in D. citri but not in other isolates including, C. gloeosporioides, B. cinerea, A. citri, F. oxysporum. In addition, specific products were observed in melanose symptoms caused by D. citri but not in melanose-like symptoms, such as copper-injury, sunscald, damages by yellow tea thrips, and pink citrus rust mite. Using the Dcitri primers developed in this study, it is expected that melanose caused by D. citri could be accurately distinguished from melanose-like symptoms.

• The Plant Pathology Journal
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• v.38 no.1
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• pp.46-51
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• 2022

Rice blast is the most destructive disease threatening stable rice production in rice-growing areas. Cultivation of disease-resistant rice cultivars is the most effective way to control rice blast disease. However, the rice blast resistance is easy to breakdown within years by blast fungus that continually changes to adapt to new cultivars. Therefore, it is important to continuously monitor the incidence of rice blast disease and race differentiation of rice blast fungus in fields. In 2020, a severe rice blast disease occurred nationwide in Korea. We evaluated the incidence of rice blast disease in Yeoju and compared the weather conditions at the periods of rice blast disease in 2019 and 2020. We investigated the races and avirulence genes of rice blast isolates in Yeoju to identify race diversity and genetic characteristics of the isolates. This study will provide empirical support for rice blast control and the breeding of blast-resistant rice cultivars.

• Journal of Korean Academy of Nursing Administration
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• v.16 no.4
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• pp.517-526
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• 2010

Purpose: The purpose of this study was to identify the major trends of research in the Journal of Korean Nursing Administration from 2007 to 2009. Method: Research designs, participants, research domains, and key words were analyzed from the Journal of Korean Nursing Administration. Results: Job satisfaction, organizational commitment, job stress, turnover intention, nursing performance, self-efficiency, leadership, empowerment, nursing informatics, and quality control were the major key words commonly listed in the journal articles. Of the research in the Nursing Administration Journal, quantitative methods were used in 94.5% of the research studies and qualitative methods in only 5.5%. The major participants in the research were nurses, nurse managers, and patients. Statistical methods like ANOVA, correlation, t-test, regression, chi-square test, LISREL were the dominant method of analysis used in the research. The primary domains in the journal articles were directing, organizing, control, planning, and informatics. Conclusion: Through this study, the trend of research in nursing administration can be identified. We recommend that collaboration, nurse work environment, evidence-based practice, scheduling, coaching, patient falls and safety, and positive culture should be included as topics for the future research.

• Journal of Korean Academy of Nursing Administration
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• v.13 no.4
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• pp.546-552
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• 2007

Purpose: This study was performed to identify current characteristics(Academic Value and Outcome) of the Journal of Korean Academy of Nursing Administration. Method: This 57 papers analyzed the Journal of Korean Academy of Nursing Administration(2006) and comparisons were made with similar studies in Health and Social Science(2006). Results: The analysis of the contents for the papers were suggested according to research purposes: research compatibility, research creativity, research excellence. Conclusion: It is suggested that in depth research be made on nursing management based on evidence practice, nursing informatics, legal and ethical issues. It is developmental direction for academic value and outcome of the Journal of Korean Academy of Nursing Administration.

• Proceedings of the Korean Society of Crop Science Conference
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• 2022.04a
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• pp.114-114
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• 2022

• Korean Journal of Agricultural Science
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• v.47 no.1
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• pp.139-161
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• 2020

The aims of this study were to classify the cultivation status of medicinal crop farmers and to obtain basic data on domestic medicinal crops. To this end, 406 medicinal crop farmers participating in farming education programs in 14 cities and counties were surveyed over 10 months. The results were as follows. First, the biggest difficulty farmers faced in the overall production of medicinal crops was a lack of cultivation skills. Second, in a detailed inquiry about each difficulty item, the most difficult problems were injury by continuous cropping of root-using crops, shortage of specific farm machinery, uncertain market prices, and lack of knowledge about pest control or the positive list system (PLS). Third, the profitability of medicinal crops increased with career experience. Among the farmers who earned profits, requests for education and technical guidance were the most important factors for profitability. Fourth, the results of the analysis suggest that to achieve stable cultivation of medicinal crops, the following items need to be addressed: development and supply of basic cultivation technologies, climate response, registration of pest control pesticides, a solution to the injury by continuous cropping, and contracting cultivation expansion. Additionally, to improve profitability, it is necessary to create conditions that enable the same crops to grow for a long time in one region.

• Proceedings of the KSRS Conference
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• 2002.10a
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• pp.638-643
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• 2002

MODIS (MODerate-resolution Imaging Spectroradiometer) onboard the first Earth Observing System (EOS) satellite, Terra, was launched successfully at the end of 1999. The direct broadcast MODIS data has been received and utilized in Korea Meteorological Administration (KMA) since february 2001. This study introduces utilizations of this data, especially for the derivation of sea surface temperature (SST). To produce the MODIS SST operationally, we used a simple cloud mask algorithm and MCSST algorithm. By using a simple cloud mask algorithm and by assumption of NOAA daily SST as a true SST, a new set of MCSST coefficients was derived. And we tried to analyze the current NASA's PFSST and new MCSST algorithms by using the collocated buoy observation data. Although the number of collocated data was limited, both algorithms are highly correlated with the buoy SST, but somewhat bigger bias and RMS difference than we expected. And PFSST uniformly underestimated the SST. Through more analyzing the archived and future-received data, we plan to derive better MCSST coefficients and apply to MODIS data of Aqua that is the second EOS satellite. To use the MODIS standard cloud mask algorithm to get better SST coefficients is going to be prepared.

• IMMUNE NETWORK
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• v.10 no.2
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• pp.64-74
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• 2010

Background: The present study was undertaken to examine the immunological effects of pentabrominated diphenyl ether (penta-BDE) and decabrominated diphenyl ether (deca-BDE) on the immune system of the dams and the developmental immune system of the offsprings. Methods: In this study, mated female C57BL/6J mice were orally administered penta-BDE, deca-BDE or corn oil for 5 weeks, from gestational day 6 to lactational day 21. Results: The body weight of PND21 exposed to penta-BDE was significantly decreased relative to control mice, but that of post-natal day 63 (PND63) were recovered. Orally dosed dams with penta-BDE had significantly smaller absolute and relative spleen masses than control mice. Absolute and relative spleen and thymus masses of PND21 exposed to penta-BDE were significantly decreased over control. The exposure of dams and PND21 with penta-BDE reduced the number of splenocytes and thymocytes. As results of hematologic analysis, percentage WBC and percentage neutrophils increased in dams with deca-BDE. Splenic T cell proliferation in dams and PND21 exposed to penta-BDE was increased, and there were no significant difference in splenic B cell proliferation in all treatment groups. As results of flow cytometric analysis of splenocyte, percentage total T cell, Th cell and Tc cell in PND21 exposed to penta-BDE was slightly increased, and percentage macrophage in dams and PND21 exposed to deca-BDE was decreased. The ELISA results of antibody production show no significant difference in all treatment groups relative to controls. Conclusion: These results imply that PBDEs given to the dam were transferred to the offspring during gestation and lactation, and PBDEs transferred from the dam affect immune system of offspring.

• 한국약용작물학회:학술대회논문집
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• 2008.05a
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• pp.71-74
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• 2008

• Proceedings of the Korean Society of Crop Science Conference
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• 2006.11a
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• pp.27.2-27.2
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• 2006