Insecticidal Potential of Paenibacillus elgii HOA73 and Its Combination with Organic Sulfur Pesticide on Diamondback Moth, Plutella xylostella

Saophuong Neung,Xuan Hoa Nguyen,Kyaw Wai Naing,이영상,김길용 한국응용생명화학회 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.2

Diamondback moth, Plutella xylostella, is one of themost destructive insect pests of several crops world-wide. Effectsof Paenibacillus elgii HOA73 and its combined application withorganic sulfur pesticide on Plutella xylostella were evaluated. Results showed that M3 medium composition indicated the bestmedium for optimization of bacterial colony growth, hydrolyticenzyme production, and insecticidal activity and was selected forculturing P. elgii HOA73 in further assays. The highest colonygrowth of P. elgii HOA73 was identified at 5 days after inoculation. Extracted crude enzyme and crude insecticidal compound from P. elgii HOA73 cultured in the optimized medium kill the secondinstar larvae of Diamondback moth in 40 and 50% at 220mg mL−1of crude enzyme and 2% crude extract, respectively. Combinedapplication of organic sulfur pesticide with bacterial suspensionsignificantly killed 85% second instar larvae of Diamondbackmoth, when compared to use of single application: bacterialsuspension (65%) and organic sulfur pesticide (38%), suggestingthat P. elgii HOA73 combined with organic sulfur pesticide couldbe used to control P. xylostella.

Insecticidal Potential of Paenibacillus elgii HOA73 and Its Combination with Organic Sulfur Pesticide on Diamondback Moth, Plutella xylostella

Neung, Saophuong,Nguyen, Xuan Hoa,Naing, Kyaw Wai,Lee, Young Seong,Kim, Kil Yong The Korean Society for Applied Biological Chemistr 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.2

Diamondback moth, Plutella xylostella, is one of the most destructive insect pests of several crops world-wide. Effects of Paenibacillus elgii HOA73 and its combined application with organic sulfur pesticide on Plutella xylostella were evaluated. Results showed that M3 medium composition indicated the best medium for optimization of bacterial colony growth, hydrolytic enzyme production, and insecticidal activity and was selected for culturing P. elgii HOA73 in further assays. The highest colony growth of P. elgii HOA73 was identified at 5 days after inoculation. Extracted crude enzyme and crude insecticidal compound from P. elgii HOA73 cultured in the optimized medium kill the second instar larvae of Diamondback moth in 40 and 50% at $220mg\;mL^{-1}$ of crude enzyme and 2% crude extract, respectively. Combined application of organic sulfur pesticide with bacterial suspension significantly killed 85% second instar larvae of Diamondback moth, when compared to use of single application: bacterial suspension (65%) and organic sulfur pesticide (38%), suggesting that P. elgii HOA73 combined with organic sulfur pesticide could be used to control P. xylostella

The use of cognitive and metacognitive strategies in collaborative strategic reading for comprehension

( Hoa¸ Nguyen-thanh ) 현대영미어문학회 2019 현대영미어문학회 추계학술대회 발표논문집 Vol.2019 No.-

Cognitive and metacognitive strategies are often claimed to have positive influence on learner’s language learning process, especially on reading comprehension. The effect is also the same with collaborative strategic reading. Recognizing the effect of these strategies, the author would like to investigate the current use of cognitive and metacognitive strategies in collaborative strategic reading for comprehension. This study mainly presents the frequency in use of cognitive and metacognitive strategies in collaborative reading and the effect of those strategies on comprehension. The result reveals that (1) cognitive strategies tend to be used more often than the metacognitive strategies and the most widely-used strategies is highlighting; and (2) student’s comprehension of the reading task is good and there is a change in their strategy use during the reading collaboration.

Antagonistic potential of Paenibacillus elgii HOA73 against root-knot nematode (Meloidogyne incognita)

Xuan Hoa Nguyen,Kyaw Wai Naing,Young Seong Lee(이용성),Woo Jin Jung(정우진),Muhammad Anees,Kil Yong Kim(김길용) 한국토양비료학회 2013 한국토양비료학회 학술발표회 초록집 Vol.2013 No.5

Periapical multilocular osteoporotic bone marrow defect

Jung, Yun-Hoa,Cho, Bong-Hae,Nah, Kyung-Soo 대한구강악안면방사선학회 2005 Imaging Science in Dentistry Vol.35 No.4

A case of osteoporotic bone marrow defect, which appeared as a well-defined multilocular radiolucency overlapping the roots of mandibular right second molar, was reported. On periapical radiograph, a daughter cyst-like radiolucency was seen at the anterior margin of the lesion making it difficult to rule out odontogenic keratocyst.

1980年 以後 韓國 森林資源開發에 關한 硏究 : 他 用途로의 轉用을 中心으로 Focused on Conversion for other Use

尹和榮 동국대학교 생명자원과학대학 연습림 1995 연습림논문집 Vol.- No.4

The conception of forest resources and forest resources development can be wide and variously prescribed. But with the increasing of nature conservation issues of between conservation and development, some disputs between forest land for forest production and for other land use are caused to complications sharply for forest land resources use system. According to the base of revised forest resources policy of government for new economic 5-year plan enable to develop the developable forest land for shortage supply for human settlements, industrial sites, croplands etc., this means the conversion of forrest land for other land use will be increased gradually in the future. The development type of forest land has been converting for human settlement, sites for ski and golf rather than croplands and grassland, and of which converted forest land included reserve forest land. The base of being reorganize of forestland use system enable 150milion ha which correspond to 23% of total forest land to develop for industrial site, and this will give rise to considerable diminution for total forest land. Changing from reserve and semi-reserve forest land into commercial and environmental forest land the possibility of development for converting forest land will increase relate to positive list system and negative list system. The prospect of forest resources developing pattern in Korea the conversion of forest land for other use will be accelerated, and for reduce the total forest land area diminution the important value of forest land conservation should be emphasized to forest policy-related government.

森林資源開發의 槪念定立에 關한 硏究

尹和榮,李相植 동국대학교 생명자원과학대학 연습림 1993 연습림논문집 Vol.- No.3

This study was carried out to get the basic data for the role of forest resources which has been urbanized and industrialized in modern society and to present the developing model of forest resources n the future. The results are as follows : 1. As the natural resources, forest resources belong to renewable resources as biological resources. However, forest resources can be non­reversibility when they developed above the critical point. 2. Forest resources are divided into two parts. Those are basic character and attribute character. Land and wood resources belong to basic character, and vegetation, animal, water and tree incidental resources belong to attribute character. 3. Forest resources have the marketability which has exchangeable forest accumulation at the market structure and the public goods peculiarity which has the non­exclusion and non­competitution at the consumptional point of view, and those come from the effect of forest environment. 4. The development patterns of forest resources can be classified as forestry and agricultural development, and convert development by the object and purpose of development.

자연휴양림 경영 활성화 방안

윤화영 동국대학교 생명자원과학대학 연습림 2000 연습림논문집 Vol.- No.6

This study was conducted to seek the plan for the desirable management of recreational forest located in 87 sites currently managed in Korea. Currently, 176 sites of recreational forest with the opening of U-Myung Mountain as the one in 1989 has been degignated and 87 sites of them has been completed and managed. The management of recreational forest in divided as government, state government and private, which has different purpose of recreational forest management each other. The recreational forest management of government and state government pursue the health and emotion of people and resident. On the other hand the private pursue the profit. but has still problem to acquire the profit because the regulations limit the development of forest to protect the purpose of recreational forest. And It was obvious that public sector has difficulty in managing recreational forest stable because the management can not be predicted with irregular behavior patterns of people in recreational forest and their desire. So, the plan for various financial sources will be needed through the cooperation of public sector and private sector with the appropriate management labor. The concept of recreational forest need to be improved differentiating with similar recreational sites through developing various and sustainable programs. Finally, It would be considered that recreational forest will be effectively managed with the suitable site of recreational forest based on 6 factors(sites, organism, water system, the condition of development, accessibility, recreational motives).

한국에 있어서 산림휴양지 공급 주체의 적절성에 관한 연구

윤화영 동국대학교 생명자원과학대학 연습림 2000 연습림논문집 Vol.- No.6

Forest recreation area was introduced with Chiri Mountain designated as a national park in 1967 and propelled with recreational forest established in 1989. This paper has focused on the definition of appropriate supplier to provide steadily recreational forest in Korea and the results were as follows. Recreational forest supplier in Korea can be divided as public sector and private sector. The former can keep the stable financial statue, the latter can manage it better than the other. Considering that recreation in forest is based on the forest which has the public value and that the scale of private forest and financial and intellectual status of owner of private forest. It would be desirable that public sector become the subject of supplier of recreational forest and private sector participate in management of recreational forest.

대기중 유해 화학 물질의 인체 위해도 우선순위 선정 연구

박화성,김예신,이동수,신동천 한국환경독성학회 2004 환경독성보건학회지 Vol.19 No.1

Although it is suggested that risk-based management plan is needed to manage air pollution effectively, we have no resources enough to evaluate all aspects of substances and set priorities. So we need to develop a logical and easy risk-based priority setting method. However, it is impossible that only on generic system that is consistent with all the use is developed. In this study, we proposed a human health risk based priority-setting method for hazardous air pollutants, and ranked priorities for this method. First of all, after investigating previous chemical ranking and scoring systems, we chose appropriate indicators and logics to goal of this study and made a chemical priority ranking method using these. As results, final scores in priority ranking method were derived for 25 substances, and ethylene oxide, acrylonitrile and vinyl chloride were included in high ranks. In addition, same substances were highly ranked when using default values like when using no default, but the scores of hydrofluoric acid and cyan and compounds were sensitive to default values. This study could be important that priorities were set including toxicity type and quality and local inherent exposure conditions and we can set area-specific management guidelines and survey plans as a screening tool.