• Proceedings of the Korean Society of Plant Pathology Conference
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• 1994.06a
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• pp.27-49
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• 1994

Root colonization of biocontrol agents via seed treatment was investigated and a compatible combination, Gliocladium virens G872B and Pseudomonas putida Pf3, in colonizing cucumber rhizosphere was confirmed through the study. Much higher number of fungal and bacterial propagules were detected when two isolates were inoculated together. The presence of Pf3 in root system was greatly helpful to G872B to colonize at root tip. The mechanism of this phenomenon is partially elucidated through the results of in vitro experiments and the observations of scanning electron and fluorescence microscope. Addition of Pf3 cells resulted earlier germination of G872B conidia and increased mycelial growth. And the more number of germinated conidia on seed coat, the more vigorous hypal streching and sporulation on the root surface were observed in coinoculated treatment. The propagules of G872B on the cucumber root when they were challenged against the pathogenic Fusarium oxysporum, were even higher than that of G872B treated alone, and the magnitude of such a difference was getting grater toward the root ip and the population of F. oxysporum on the root was reduced by seed inoculation of G872B. The rhizosphere competence was obviously reflected to disease suppression and plant growth promotion that induced by the given isolate. Green house experiments revealed that the combined treatment provided long-term disease suppression with greater rate and the larger amount of fruit yield than single treatments. Through this study the low temperature growing Pseudomonas fluorescens M45 and MC07 were evaluated to apply them to the winter crops in field or plastic film house. In vitro tests reveal that M45 and MC07 inhibited the mycelial growth of Pythium ultimum, Rhizoctona solani and Phytophthora capsici and enhanced growth of cucumber cotyledon in MS agar. This effect was more pronounced when the bacteria were incubated at 14$^{\circ}C$ than at 27$^{\circ}C$. And disease suppression and plant growth promotion in green house were also superior at low temperature condition. Seed treatment of M45 or soil treatment of MC07 brought successful control of damping-off and enhanced seedling growth of cucumber. The combined treatment of two isolates was more effective than any single treatment.

• Journal of Korean Society of Forest Science
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• v.90 no.6
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• pp.683-691
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• 2001

This study aimed to clarify the influencing factors of the mesopore ratio on a pore geometry of surface soil in mixed stands as an index of the water retention capacity. Twenty four factors including site conditions and soil properties were analyzed by spss/pc+ for the data collected from during March to October of 1995. The factors influencing the mesopore ratio(pF2.7) on the surface soil were as follows; mesopore ratio(pF2.7) on the B horizon soil, under vegetation coverage, organic matter contents of surface soil and F layer depth. And influencing factor on the ratio of mesopore in the soil surface was correlated with surface soil hardness and depth of 10cm soil hardness shows high negative significance. Also, multiple regression equations for mesopore ratio of the mesopore ratio of B horizon soil and organic matter contents shows high significance($R^2$; 0.84).

• Women's Health Nursing
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• v.4 no.3
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• pp.348-364
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• 1998

The two objectives of this study were 1) to develop an efficacy expectation promoting program for the management of menopause based on the self-efficacy theory of Bandura(1977), and 2) to investigate the effects of the efficacy expectation promoting program for the management of menopause. The first phase was to development an efficacy expectation promoting program through video tape. A telephone coaching program served as a follow-up to the efficacy expectation promoting program which provided encouragement and support to the subjects. The second phase was the experimental stage. This experimentation was conducted to determine whether an efficacy expectation promoting program based on theory of Bandura would increase the self-efficacy and the management of menopause. Results : The video which we developed consisted of 2 parts. Part one discussed the symptoms and the management of menopause. Part two reflected the vicarious step-by-step success of middle-aged women's menopause management. The telephone coaching program served as a follow up to the efficacy expectation promoting program and provided encouragement and support to the subjects. The total length of the video is 50 minutes. The hypotheses stated in phase two were supported by following results : In the two experimental groups consisting of the natural and artificial menopause groups both demonstrated significant increase in their general and concrete self-efficacy scores. In the experimental groups, both the objective and subjective menopause management scores increased n the natural and artificial menopause experimental groups. In conclusion, it was found that an efficacy expectation promoting program was an effective nursing intervention for increasing self-efficacy and management of menopause.

• Journal of agriculture & life science
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• v.43 no.4
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• pp.21-31
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• 2009

Dipterans are excellent insects to serve as forensic indicators to determine the postmortem interval of a human corpse. Therefore, we undertook a study to identify the major dipterans that are attracted to and develop in vertebrate carcasses. To determine what dipterans occur in Korea, chicken carcasses were placed in various habitats including the forest, open field, stream bank, greenhouse, rooftop, rice paddy, Chinese cabbage field, vacant hut, and pond at different times of the year. The dipterans were collected at various time intervals after placement in each habitat until the end of decomposition and identified. Our results showed that 49 identified and unidentified dipteran species from 36 genera in 19 families were collected from the carcasses. Habitat placement influenced the number of species isolated from the carcasses. For example, 39 species were collected from the forest habitat, 28 species from the open field, stream bank, or greenhouse each, 16 species from a vacant home, and 12 species from the pond. The dipteran species that were collected from all habitats were Phaenicia sericata, Lucilia illustris, and Lucilia sp. in the family Calliphoridae and Boettcherisca peregrine in the family Sarcophagidae. Other dipteran species that were isolated depended on carcass placement that is, fewer dipteran species were observed from carcasses in the backpack and much more species were recorded from unburied carcasses than buried carcasses. P. sericata, L. illustris, Lucilia sp., B peregrine and an unidentified sarcophagid species were observed year round, but some dipterans showed seasonal differences.

• Journal of agriculture & life science
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• v.43 no.6
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• pp.45-52
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• 2009

The purpose of this study is to verify the effect of raising plants at home on elementary school students' emotional intelligence. The experimental group in the post-test showed significant differences in all the domains of emotional perception, emotional expression, emotional empathy, emotional control, emotional application, compared to the control group, which indicated that the activity of raising plants at home has positive effects on the emotional intelligence of high graders in elementary school. Even in the change of students' emotional intelligence according to their gender, male students in the experimental group had higher average values more than the control group, showing significant differences in all the domains of emotional perception, emotional expression, emotional empathy, emotional control, emotional application. Female students in the experimental group had the same tendency. Accordingly, as a result of this study, it was found that the activity of raising plants at home has positive effects on the improvement of elementary school high graders' emotional intelligence.

• Journal of agriculture & life science
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• v.45 no.5
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• pp.9-16
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• 2011

This research was done in an effort to look into the influence on self-esteem and achievement motivation by putting the horticultural activity program into practice targeting the elementary school students in rural areas. This research conducted the program on the 4th graders of C elementary school located at a rural area in Gyeongnam by dividing them into an experimental group and control group for one session every week (3 hours each) for 12 weeks. First, it was found that the experimental group, which went through the horticultural activity program, improved in their self-esteem more than the control group and there appeared a statistically significant difference as well. In addition, the experimental group, as compared to the control group, was found to improve more in their achievement motivation and there appeared a statistically significant difference as well. Accordingly, this research was able to confirm that the horticultural activity program was effective in promoting the self-esteem and enhancing the achievement motivation of the elementary school students in rural areas.

• Clinical and Experimental Reproductive Medicine
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• v.24 no.2
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• pp.187-192
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• 1997

The survival rate and motility recovered after cryopreservation of testicular spermatozoa in testicular sperm extraction (TESE)-ICSI program is low. The purpose of this study was to assess the availability and efficiency of mouse empty zona pellucida in cryopreserving human TESE spermatozoa. Mouse empty zonae pellucidae were obtained by extraction of cytoplasm with or without cytochalasin B treatment. Motile sperm from proven-fertile donor and two azoospermic patients after TESE were individually inserted into empty zona pellucida and cryopreserved. Two to five days after cyropreservation, the frozen sperm were thawed and the rates of recovery and motility were observed. The ooplasmic extraction rates of control (N=80) and cytochalasin B treated oocytes (N=80) were 94.0% and 96.2%, respectively (p>0.05). The post-thaw recovery rates of spermatozoa and rates of motility recovery of ejaculate (N=70) and testicular (N=70) sperm were 97.1%, 97.1% and 95.7%, 94.3%, respectively (p>0.05). The results of this study showed that the mouse zone pellucida is useful for cryostorage of single testicular spermatozoa.

• Food Science and Preservation
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• v.6 no.4
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• pp.506-513
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• 1999

The growth of lactic acid bacteria was investigated in liquid broth medium containing organic germanium compound(Ge-132, carboxyethylgermanium sesquioxide) in the range of 0.01 to 10mg/ml. Most of all lactic acid bacteria tested were tolerant and could grow better to the high Ge-132 concentration. However, the growth of Leuconostoc mesenteroides and Pediococcus pentosaceus were inhibited in the presence of 10mg/m1 Ge-132. Among 22 strains tested, lactic acid bacteria that were grown to a high degree(about 2 times) by addition of Ge-132 (10mg/ml)were Lactococcus lactis, Lc. cremoris, Lc. diacetilactis, Enterococcus faecium and Streptococcus faecalis. The growth of these strains were markedly accelerated in the culture medium supplemented with 1.omg/ml Ge-132 The optimal concentration of glucose for growth of Lc. lactic was found to be high in medium containing Ge-132 as compared with the case of control. During cultivation viscosity in culture broths of Lc. lactis and Lc. cremoris was rapidly elevated by adding Ge-132 to medium containing high concentration of glucose, and then decreased after incubation of long time. However, in the cultivation of Lc. diacetilactis, E, faecium and S. faecalis, viscosity of culture broths was not increased, even though Ge-132 was shown to be an effective stimulant of growth.

• Journal of Korean Elementary Science Education
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• v.40 no.3
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• pp.295-310
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• 2021

For the continuous growth and development of students, continuity of learning content according to the school level is essential. However, research on the continuity of kindergarten education and elementary school science curriculum is relatively insufficient. In this respect, it is necessary to precede the analysis of the continuity between the science-related learning content presented in kindergarten education and the science curriculum in elementary school. In this study, the 2015 science curriculum was organized into 14 small sections, and the core contents of science education in kindergartens and elementary schools were presented as correspondence. As a result, it was possible to classify learning contents presented only in kindergarten, learning contents presented only in elementary schools, and learning contents showing a clear continuity between kindergarten and elementary school. This study is meaningful in that it presents implications for the continuity between the science curriculum of the kindergarten curriculum and the elementary school curriculum.

• Journal of The Korean Association of Information Education
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• v.22 no.6
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• pp.681-687
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• 2018

Many papers are published in KCI-listed journals for objectively validating research results and evaluations. This study collected articles published from 2008 to October, 2018 (10 years) of KAIE, which is a representative KCI registration institute which publishes various research related to elementary information education, and classified and analyzed by 10 subject areas. As a result, 34.2% of the papers published in the topic related to software education were found in the whole papers, and 33% of the papers published in this society showed the highest number of citations of papers relating to software education. Many of the remaining articles analyzed by subject area were overlapped with software education in the field of small scale medicine. In the future, a considerable number of researchers are expected to focus on software education.