• Title/Summary/Keyword: Refuge activity

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Study on the Assessment of Refuge Behavior and the Derivation of Critical Inundation Depth (침수지역 주민의 피난행동의 평가와 적정 피난수심의 유도에 관한 연구)

  • 이영우;김태수;하태우;강상혁;이상호
    • Fire Science and Engineering
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    • v.17 no.4
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    • pp.92-97
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    • 2003
  • It is necessary to build countermeasure for the reduction of flood damage, such as the analysis of shelter activities of local residents and the publishment of flood informations. The control factors for mental refuge activity by the questionnaire survey were classified and estimated into two categories: internal and external ones. Furthermore, the optimal time for refuse activities related to flood risk was derived by hydraulic simulation. The shelter activities considering inundation depth will serve citizen's consensus by exercise, it would aid to support the activities to minimize flood victims.

Building a Flood Database and Its Utilization to Reduce Flood Risk (수해시 피해경감을 위한 정보의 정비 및 활용)

  • An, Sang-Hyeok;Noguchi, M.
    • Journal of Korea Water Resources Association
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    • v.33 no.6
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    • pp.681-688
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    • 2000
  • For the reduction of flood damage, it is necessary to analyse shelter activities of local residents and to publish information of floodings, In this paper the control factors of individual refuge activities which are major activities to save peoples lives against floodings have been estimated. Decision making factors for mental refuge activity by the questionnaire survey were classified into two categories: internal and external ones. Furthermore, the behaviour patterns of residents for flood risk related to geographical and social factors were derived by the quantification method n. Since spatial layered information using GIS were corrected and estimated to serve citizen's consensus due to flood disaster, it would aid reduction and minimization of flood risk.d risk.

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A Study on the Meaning of Home of the University Student (대학생들의 집의 의미에 대한 연구)

  • Lee, Eun-Joo;Cho, Sung-Heui
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2006.11a
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    • pp.416-419
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    • 2006
  • Not only is home a place, but also it has psychological and social meaning. Then the meaning of home is different according to geographical location or group. Therefore, under this background, the purpose of this study was to analyze the meaning of home of the university students. The data was collected through the students ' essay about "the meaning of housing for me". The samples are 158 in total. The research method which was performed in order to recognize the meaning of home was a content analysis . As the results of study, the meaning of home are 10 in total. First order is a home as a refuge, second order is a home as a space with a family, and third order is a home as a base of activity.

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Factors Affecting Nursing Students' Perception on Pediatric Patient Safety Culture and Nursing Activity (간호대학생의 입원아동 안전간호활동 인식 영향 요인)

  • Park, Eunsook;Oh, Won-Oak;Kim, Mirim
    • Child Health Nursing Research
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    • v.23 no.4
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    • pp.534-542
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    • 2017
  • Purpose: The purpose of this study was to identify the factors that affect nursing students' perception of pediatric safety nursing activities for children during hospitalization. Methods: The study sample included 304 nursing students who had participated in pediatric nursing practice. Data were analyzed using SAS 9.3 program. Results: Regression analysis showed that the model's explanatory power was 37%. Safety policy and procedure, safety priority, disaster experience, and knowing a place of refuge were factors affecting the perception of safety nursing activities for children during hospitalization. Conclusion: Findings show that safety policy and procedures and safety priority are major factors that affect the perception of safety nursing activities and indicate that effective education programs on safety policy and procedure and safety priority are necessary to improve the perception of safety nursing activities.

Indigenous Fungivorous Nematodes Affect the Biocontrol Efficacy of Trichoderma harzianum through Reducing the Hyphal Density

  • Kim, Tae Gwan;Knudsen, Guy R.
    • Journal of Microbiology and Biotechnology
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    • v.31 no.6
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    • pp.815-822
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    • 2021
  • Indigenous fungus-feeding nematodes may adversely affect the growth and activity of introduced biocontrol fungi. Alginate pellets of the biocontrol fungus Trichoderma harzianum ThzID1-M3 and sclerotia of the fungal plant pathogen Sclerotinia sclerotiorum were added to nonsterile soil at a soil water potential of -50 or -1,000 kPa. The biomass of ThzID1-M3, nematode populations, and extent of colonization of sclerotia by ThzID1-M3 were monitored over time. The presence of ThzID1-M3 increased the nematode population under both moisture regimes (p < 0.05), and fungivores comprised 69-75% of the nematode population. By day 5, the biomass of ThzID1-M3b and its colonization of sclerotia increased and were strongly correlated (R2 = 0.98), followed by a rapid reduction, under both regimes. At -50 kPa (the wetter of the two environments), fungal biomass and colonization by ThzID1-M3 were less, in the period from 5 to 20 days, while fungivores were more abundant. These results indicate that ThzID1-M3 stimulated the population growth of fungivorous nematodes, which in turn, reduced the biocontrol ability of the fungus to mycoparasitize sclerotia. However, colonization incidence reached 100% by day 5 and remained so for the experimental period under both regimes, although hyphal fragments disappeared by day 20. Our results suggest that indigenous fungivores are an important constraint for the biocontrol activity of introduced fungi, and sclerotia can provide spatial refuge for biocontrol fungi from the feeding activity of fungivorous nematodes.

Management of the Development of Insecticide Resistance by Sensible Use of Insecticide, Operational Methods (실행방식 측면에서 살충제의 신중한 사용에 의한 저항성 발달의 관리)

  • Chung, Bu-Keun;Park, Chung-Gyoo
    • Korean journal of applied entomology
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    • v.48 no.2
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    • pp.123-158
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    • 2009
  • An attempt was made to stimulate future research by providing exemplary information, which would integrate published knowledge to solve specific pest problem caused by resistance. This review was directed to find a way for delaying resistance development with consideration of chemical(s) nature, of mixture, rotation, or mosaics, and of insecticide(s) compatible with the biological agents in integrated pest management (IPM). The application frequency, related to the resistance development, was influenced by insecticide activity from potentiation, residual period, and the vulnerability to resistance development of chemical, with secondary pest. Chemical affected feeding, locomotion, flight, mating, and predator avoidance. Insecticides with negative cross-resistance by the difference of target sites and mode of action would be adapted to mixture, rotation and mosaic. Mixtures for delaying resistance depend on each component killing very high percentage of the insects, considering allele dominance, cross-resistance, and immigration and fitness disadvantage. Potential disadvantages associated with mixtures include disruption of biological control, resistance in secondary pests, selecting very resistant population, and extending cross-resistance range. The rotation would use insecticides in high and low doses, or with different metabolic mechanisms. Mosaic apply insecticides to the different sectors of a grid for highly mobile insects, spray unrelated insecticides to sedentary aphids in different areas, or mix plots of insecticide-treated and untreated rows. On the evolution of pest resistance, selectivity and resistance of parasitoids and predator decreased the number of generations in which pesticide treatment is required and they could be complementary to refuges from pesticides To enhance the viability of parasitoids, the terms on the insecticides selectivity and factors affecting to the selectivity in field were examined. For establishment of resistant parasitoid, migration, survivorship, refuge, alternative pesticides were considered. To use parasitoids under the pressure of pesticides, resistant or tolerant parasitoids were tested, collected, and/or selected. A parasitoid parasitized more successfully in the susceptible host than the resistant. Factors affecting to selective toxicity of predator are mixing mineral oil, application method, insecticide contaminated prey, trait of individual insecticide, sub-lethal doses, and the developmental stage of predators. To improve the predator/prey ratio in field, application time, method, and formulation of pesticide, reducing dose rate, using mulches and weeds, multicropping and managing of surroundings are suggested. Plant resistance, predator activity, selective insect growth regulator, and alternative prey positively contributed to the increase of the ratio. Using selective insecticides or insecticide resistant predator controlled its phytophagous prey mites, kept them below an economic level, increased yield, and reduced the spray number and fruits damaged.

Research on Environmentally-Sound Erosion Control Works(II) -The Management and Guidelines of Riparian Zone in Japan- (환경(環境)과 조화한 사방사업(砂防事業)(II) -일본(日本)에 있어서 수변지역(水邊地域)의 관리(管理)와 지침(指針)-)

  • Chun, Kun-Woo;Kim, Kyoung-Nam;Seomun, Won;Yeom, Kyu-Jin;Ezaki, Tsugio
    • Journal of Forest and Environmental Science
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    • v.14 no.1
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    • pp.112-127
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    • 1998
  • A meeting for Japan Society of Erosion Control Engineering took place, from May 20-21 in Sapporo, Japan, with the presentations of 21 special topics and 185 general papers. Special topics consists of 6 copies on volcanic disaster prevention, 6 copies on the activity report of Earthquake Erosion Control Engineering Society, 5 copies on the management and guidelines of riparian zone and 4 copies on debris disaster occurred in 1997. General papers consists of 10 copies on slope stability, 10 copies on slope failure, 9 copies on earthquake, 41 copies on environmental erosion control, 25 copies on debris flow, 11 copies on warning and refuge, 10 copies on erosion control plan, 11 copies on erosion control project, 10 copies on erosion control facility, 12 copies on volcanic erosion control, 4 copies on revegetation technology, 4 copies on forest hydrology, 4 copies on avalanche, 4 copies on landslide, 18 copies on debris flow and 2 other copies presented by international student. Among the special topics, 5 papers with the titles of the function and structure of riparian zone, the interactive relation of flood and riparian zone, the management method of channel and river forest for controlling debris flow, the forest restoration efforts by native population, the law and social issue for building river riparian zone were presented in the subsection of "The Management and Guidelines of Riparian Zone". Thus, this article summarize and introduce the presented contents which are very important and can be referred to keep environmentally sound-river in the erosion control field.

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