• 한국융합학회논문지
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• 제10권3호
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• pp.257-264
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• 2019

이 연구의 목적은 교양체육수업의 만족도가 대학생활만족도 및 학업지속의도에 미치는 영향을 분석하여 학업지속의도를 높이는 효과적 대학정책 수립에 사용될 수 있는 기초자료를 제공하는 것에 있다. 교양체육수업에 참여중인 대학생을 대상으로 총 185부의 설문지를 분석한 결과는 다음과 같다. 첫째, 교양체육수업의 만족도는 대학생활만족도에 유의한 정(+)의 직접영향을 미치는 것으로 나타났다. 둘째, 대학생활만족도는 학업지속의도에 유의한 정(+)의 직접영향을 미치는 것으로 나타났다. 셋째, 교양체육수업만족도는 학업지속의도에 통계적으로 유의한 직접영향을 미치지 않는 것으로 나타났다. 넷째, 교양체육수업만족도는 대학생활만족도를 매개로 하여 학업지속의도에 통계적으로 유의한 정(+)의 간접영향을 미치는 것으로 나타났다.

• 한국응급구조학회지
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• 제26권3호
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• pp.93-104
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• 2022

Purpose: This study examined the correlation between satisfaction with major, academic self-efficacy, and academic persistence with the general characteristics of students in a health-related field, to determine factors that affect academic persistence. Methods: The study was conducted on third- and fourth-grade health-field students at Daejion. The questionnaire consisted of a self-report, and a URL was sent by text message to students who agreed to participate after reading the purpose and necessity of the study. Results: Major satisfaction was 4.23 on average, academic self-efficacy was 4.15, and academic continuity was 4.25. Grade and school life satisfaction were the factors correlated with a significant difference in academic persistence. Significant positive correlations were seen between satisfaction with major (r=.637, p<.001) and academic self-efficacy (r=.563, p<.001); higher major satisfaction and academic self-efficacy led to higher academic persistence. Conclusion: A more systematic management approach needs to be conducted by developing active learning participation and applying customized counseling management and support programs by grade to improve the academic self-efficacy and academic persistence of students in health-related fields.

• 한국학교보건학회지
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• 제32권3호
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• pp.144-151
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• 2019

Purpose: The purpose of this study is to examine academic stress, social support and learning management system(LMS) utilization satisfaction of learners attending online graduate schools and understand the factors influencing their academic persistence. Methods: The participants were students of K online graduate school and the data of 143 students, in total, were collected from April to May in 2019. For data analysis, frequency analysis, x² test, t-test, F-test, Pearson's correlation and multiple regression analysis were conducted using SPSS ver. 23. Results: Academic stress, social support, and LMS utilization satisfaction were associated with academic persistence of online graduate students. The multiple regression analysis of the factors influencing academic persistence showed that the model was significant (p<.001) with an explanatory power of 23% and that significant factors influencing it were academic stress (β=-.23, p=.002), LMS utilization satisfaction (β=.31, p<.001) and jobs (β=.23, p=.002). Conclusion: Although the online graduate students' level of academic persistence was high, it is required to develop strategies to alleviate their academic stress and increase LMS utilization rate in order to increase their persistence to academic success. In addition, it is necessary to provide the foundation on which the utilization of major knowledge regarding jobs can be enhanced, reflecting the characteristics of online graduate students. Furthermore, this study is expected to contribute to the extension of professional and advanced education in response to social needs by developing a variety of online high education learning systems beyond time and space.

• East Asian Economic Review
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• 제21권2호
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• pp.123-146
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• 2017

This paper examines the persistence of relative consumer price indices for 15 regions in Korea including 6 metropolitan cities and 9 provinces over the period of 1990-2016. In particular, we ask if relative regional price indices contain a common stochastic trend and find that they are not. We then investigate how quickly these relative prices converge to their long run value and find that a half-life of a deviation from the long run value is in the range of 13 to 22 months for the aggregate consumer price indices and in the range of 7 to 13 months for the tradable goods price indices, which is much quicker than the estimates of previous studies. These estimates suggest that existing monetary models with the realistic duration of price rigidities can generate the persistence in relative price indices.

• 농약과학회지
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• 제15권3호
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• pp.317-322
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• 2011

파프리카 잎에서 chlorfenapyr의 잔류기간 및 응애에 대한 약효 지속효과를 알아보기 위해 chlorfenapyr를 기준량, 배량으로 살포하여 농약 잔류량 및 점박이응애의 사충율을 조사하였다. 기준량과 배량처리 모두 chlorfenapyr의 잎에서 반감기는 8일이였으며, 초기 잔류 농도는 기준량처리 시 22.22 ${\mu}g\;g^{-1}$이었고 배량 처리 시에는 37.75 ${\mu}g\;g^{-1}$으로 29일째 분석 시 1.56 ${\mu}g\;g^{-1}$, 배량은 3.62 ${\mu}g\;g^{-1}$로 나타났다. 열매에 대한 반감기는 5일로 잎에서 보다 짧았으며 잔류량은 MRL 수준을 초과하지 않았다. 점박이응애를 접종하여 24시간, 48시간 후 사충율을 조사한 결과 24시간 처리구의 방제효과는 7일까지 지속되었다. 48시간 처리구는 농약 처리 후 15일 경과한 잎에서도 방제 효과가 지속되었다. 이 결과로 작물체내에서 농약의 잔류량과 방제효과는 해충이 섭취하여 치사하는 농도에 도달하는 점과 일치하는 것으로 보인다.

• 농약과학회지
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• 제7권3호
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• pp.182-187
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• 2003

제초제 mefenacet의 토양 중 분해 특성을 알아 보고자 2 종의 토양을 비살균 토양을 대조로 하여 몇가지 조건으로 전처리한 다음 120일 동안 항온배양하면서 그 잔류량을 분석한 결과 약제처리 후 70일 경과시 대조토양은 $55\sim63%$가 분해 소실되었으나 살균토양에서는 $32\sim33%$, 담수토양에서는 $33\sim35%$가 소설 되어 mefenacet의 분해에 토양 미생물의 활성이 크게 영향을 끼치는 것으로 나타났다. 또한 mefenacet의 토양 중 분해에 미치는 수분함량의 영향을 조사한 결과 90 일간 배양 시 그 반감기는 포장 용수량의 20%와 50%에 해당하는 7.8%, 19.5%의 수분이 첨가된 토양에서는 각각 83과 82일 이었으며 80%인 31.2%의 수분이 첨가된 토양의 반감기가 61일로 단축되어 토양 수분 함량이 높을수록 mefenacet의 토양 중 분해 소실이 빠르게 일어남을 알 수 있었다. 결과적으로 mefenacet의 토양 중 분해 소실에는 토양 성분 중 유기물 함량과 토양 수분 함량이 중요한 인자로 작용하며 토양 미생물이 토양 성분과 더불어 mefenacet의 분해에 중요한 역할을 하고 있음을 시사하고 있다.

• 한국환경과학회지
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• 제13권2호
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• pp.117-127
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• 2004

The purpose of this study is to present the conditions and methods for keeping the sustainability of the landscape resources of the East Coast of Gangwon province, the Republic of Korea by investigating the landscape resources management in the area and pointing out its problems. The unit of analysis in this study is four cities and two counties located along the national road route seven in Gangwon province. The classification and characteristics of the landscape resources in this area was analyzed by a literature review, and we surveyed the tourists visiting the area and statistically analyzed the data in order to examine their satisfaction with the landscape resources management and make recommendations. The problems of the landscape resources management are: 1) the disturbance of the persistence of life by reclamation, the population reduction in the ecosystem due to the overload in environmental capacity, and the severance of space between land and water. 2) the reduction of the benefits from indirect experience by interfering with the conservation of fluxes --- the manipulation of horizontal arrangement of the landscape resource, the visual disturbance by the construction of high-storied buildings, and the disharmony between the color/image and the environment. The means for keeping sustainability of the landscape resources include the regulations of development and use, the change in the recognition of the value of landscape resources and the moral system, and the improvement of resource management skills.

• 한국환경과학회:학술대회논문집
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• 한국환경과학회 2003년도 International Symposium on Clean Environment
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• pp.192-197
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• 2003

The purpose of this study is to present the conditions and methods for keeping the sustainability of the landscape resources of the East Coast of Gangwon province, the republic of Korea by investigating the landscape resources management in the area and pointing out its problems. The problems of the landscape resources management are： 1) the disturbance of the persistence of life by reclamation, the population reduction in the ecosystem due to the overload in environmental capacity, and the severance of space between land and water. 2) the reduction of the benefits from indirect experience by interfering with the conservation of fluxes -- the manipulation of horizontal arrangement of the landscape resource, the visual disturbance by the construction of high-storied buildings, and the disharmony between the color/image and the environment. The means for keeping sustainability of the landscape resources include the regulations of development and use, the change in the recognition of the value of landscape resources and the moral system, and the improvement of resource management skills.

• Asian-Australasian Journal of Animal Sciences
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• 제12권5호
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• pp.758-765
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• 1999

Comparative studies of the effects of rates and frequency of application of dairy slurry on herbage yield and stand persistence of alfalfa and various forage grasses have not previously been conducted. The results being reported here are part of a larger study having a primary objective of comparing the effectiveness of alfalfa (Medicago sativa L.), various grasses and alfalfa-grass mixtures for utilizing nutrients from applied dairy slurry. The objectives of this part of the study were to evaluate the effects of various rates and frequencies of application of slurry on herbage yield and stand persistence of orchardgrass (Dactylis glomerata L.), reed canarygrass (Phalaris arundinacea L.), and alfalfa-orchanrdgreass and alfalfa-reed canarygrass mixtures managed as a 4-cutting management system. A randomized complete block design with treatments in a split plot arrangement with four replicates was used. The main plots consisted of 9 fertility treatments: 7 slurry rate and time of application treatments, one inorganic fertilizer treatment, and an unfertilized control. The sub-plots consisted of the two grasses and two alfalfa-grass mixture mentioned above. Slurry was composed from stored solids scraped from the alleyways of a free-stall housing barn and water added to form a slurry having about 8% solids. Manure was pumped from a liquid spreader tank into 10.4 L garden water cans for manual application to the plots. Herbage yields within species were generally unaffected by various rates of application in the first production year. Herbage yields of grasses and alfalfa-grass mixtures the second year were generally not affected by frequency of application for the same rate of slurry applied. Slurry application resulted in greater herbage yield increases in grasses than alfalfa-grass mixtures in the 4-cutting management system. In general, herbage dry matter yields of grasses from the dairy slurry treatments equaled or exceeded yields from the inorganic fertilizer treatment. Stand ratings of grasses and alfalfa-grass mixtures were not changed by manure application rates. In this study, the highest rate of slurry ($967kg\;total\;N\;ha^{-1}$ in 1995 plus $2,014kg\;N\;ha^{-1}$ in 1996) was not detrimental to herbage yields or stand persistence of any of the species. It was concluded that applying dairy slurry to these cool-season grasses and alfalfa-grass mixtures managed in a 4-cutting system is an acceptable practice from the standpoint of herbage yield and satnd persistence and by doing so the utilization of inorganic fertilizers can be reduced.

• 한국환경과학회지
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• 제31권11호
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• pp.981-987
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• 2022

This study aimed to investigate the psychological effect of a healing agricultural program using insect resources and to confirm the persistence of the healing effect. The applied insect was silkworm Bombyx mori (Linnaeus) and 28 adolescents from local children's centers were used as the subjects. The healing agricultural program was applied at the centers for 4 weeks, and stress was measured using salivary α-amylase levels and a survey on life satisfaction, happiness, and insect preference. The results indicated that stress levels decreased, and life satisfaction and insect preference increased after participating in the the healing agricultural program. Furthermore, it was confirmed that this healing effect continued until 4 weeks after the end of the program.