• The Journal of the Korea Contents Association
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• v.12 no.8
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• pp.449-460
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• 2012

We investigated the differences between the teachers' perception and practice on portfolio assessments in kindergartens and daycare centers, and analyzed their dependence on various underlying factors. The participants of this study include 304 teachers in the kindergartens and daycare centers in J I G cities in Jeollabuk-do. The answers on the questionnaires were analysed by evaluating frequencies, percentage, averages, and standard deviations, and by carrying out paired t-test, ANOVA, and Scheff$\acute{e}$ verification using SPSS 18.0 program. The results of this study are summarized as follows. First, teachers' practice fell meaningfully short of their perception in every sub-categories of the method and the effect of the portfolio assessment. Among the various underlying factors, only teachers' educational level played significant role. The difference between the perception and practice was relatively large among the teachers with regular 4-year college diploma as compared to junior-college graduates. Second, as we examine the difficulties in the portfolio assessment, teachers in general found difficulties on the questionnaires in all sub-categories, although the dependence on the underlying factors varies across the sub-categories. For example, teachers with higher level of education or who work at public kindergartens felt relatively more difficulties in the portfolio assessment.

• Korean Journal of Ichthyology
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• v.24 no.3
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• pp.160-166
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• 2012

Egg development and early life history of the endangered Korean freshwater fish, Microphysogobio koreensis, was investigated to get a basic information for establishing its conservation strategy. The matured adult fishes were sampled at Imsil-gun, Jeollabuk-do, Korea in May 1 2012 and artificially fertilized. The fertilized eggs were spherical, separated demersal and $1.8{\pm}0.14mm$ in diameter. The hatching of the embryo began at about 29 hours after fertilization under water temperature of $23^{\circ}C$. The newly hatched pre-larvae were average $2.2{\pm}0.48mm$ in total length. At 4 days after hatching, the post-larvae were $3.6{\pm}0.55mm$ in total length and york sac was completely absorbed. At 20 days after hatching, their fin rays were formed and finally the larvae entered juvenile stage and grew up to $6.5{\pm}0.77mm$ in total length. At 60 days after hatching, the total length reached $24.4{\pm}1.71mm$, and the band patterns of he head and lateral side were similar to adult fish. Based on this study, the fertilized eggs of M. koreensis hatched more quickly and the pre-larvae length was also smaller, compared with related species.

• Journal of Embryo Transfer
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• v.29 no.1
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• pp.13-19
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• 2014

This study was carried out to study the survival rate of thawed Hanwoo embryos frozen by the slow-rate freezing or the cryotop vitrification method. Hanwoo cumulus-oocyte complexes were recovered from ovaries at a slaughter house, matured for 20~22 hours, fertilized with Hanwoo semen for 5~6 hours, and cultured for 7~9 days in $38.5^{\circ}C$, 5% $CO_2$ incubator. For freezing, Day 7~9 blastocysts were collected. Embryos for the slow-rate freezing were equilibrated in 1.8 M ethylene glycol (EG) with Dulbecco's phosphate-buffered saline (D-PBS). Programmable cell freezer was precooled down to $-7^{\circ}C$, and the straw was seeded during 8 minutes-holding time, and was cooled to $-35^{\circ}C$ at the cooling rate of $0.3^{\circ}C/min$, and then was plunged and stored in liquid nitrogen. Embryos for the cryotop vitrification were treated in TCM199 with 0.5 M sucrose, 16% EG, 16% dimethylsulfoxide (DMSO). Embryos were then loaded individually onto cryotop and plunged directly into liquid nitrogen. The survival rates of embryos frozen by these two freezing methods were evaluated at 12 to 24h post-thawing. The survival rates of frozen/thawed Hanwoo embryos by the cryotop vitrification method ($56.86{\pm}26.53%$) were slightly higher than those by the slow-rate freezing method ($55.07{\pm}26.43%$) with no significant difference. Using the cryotop vitrification and the slow-rate freezing of Hanwoo blastocysts on Day 7 following in-vitro fertilization (IVF) treatment, the survival rates of frozen/thawed Hanwoo embryos were $72.65{\pm}18.3%$ and $79.06{\pm}17.8%$, respectively. The survival rates by the cryotop vitrification were higher than those by the slow-rate freezing on both Day 8 and 9 with significantly higher survival rate on Day 9 (p<0.05). Using the cryotop vitrification and the slow-rate freezing of Hanwoo embryos to compare between three different blastocyst stages, the survival rates of the blastocyst stage embryos were $66.22{\pm}18.8%$ and $45.76{\pm}12.8%$, respectively with higher survival rate by the vitrification method (p<0.05). And the survival rate of expanded blastocysts was higher than those of early blastocysts and blastocysts in two freezing methods with significantly higher survival rate by the slow-rate freezing method (p<0.05).

• Journal of Embryo Transfer
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• v.29 no.1
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• pp.21-27
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• 2014

The objective of this study was to determine the effect of the MC1R genotypes of the Chikso (Korean brindle cattle) sires on the coat colors of their offspring. In this study, 15 Chikso sires with known MC1R genotypes were used for breeding in the Gangwon Province Livestock Research Center, the Chungbuk Institute of Livestock and Veterinary Research, and the Livestock Experiment Station, Jeonbuk Institute of Livestock and Veterinary Research from either 2011 or 2012 to 2013. There were 6 sires with $E^+E^+$ genotypes and 9 sires with $E^+e$ genotypes, and their coat colors were all whole brindle (more than 50 of the body). Among the 90 calves produced in 2011~2013 or 2012~2013 from the 15 sires, 50 (55.6%) of them were females and 40 (44.4%) of them were males. Coat colors of the offspring were determined when they reached over 6 months of age. Calves with whole brindle, part brindle, brown and black coat colors were 42 (48.3%), 11 (12.6%), 18 (20.7%) and 16 (18.4%), respectively. Ratio of calves with whole brindle coat color was higher than any other coat colors. Among the offspring with whole brindle color, 20 (41.7%) calves were female and 22 (51.3%) calves were male. By determining the MC1R genotypes of the dams and calves in this study along the family lines, and investigating other genes that may be involved in the coat colors of the Chikso, better breeding system may be established to increase the brindle coat color appearance in the future.

• Korean Journal of Environment and Ecology
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• v.20 no.3
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• pp.311-318
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• 2006

In an estuary, ecological dynamic is modified for a long time and memorized in soils and landscapes. As landscape memory, ecological motif is defined with dominance and rarity of vegetation. The purpose of the study is to investigate the existing vegetation character and to propose the ecological motif of this area. The present salt-water plants, community species composition and constancy degree around the estuary in Buandam watershed Buan-gun, Jeollabuk-do were analyzed. The results are as follows. The flora of the salt-water plants was listed as 16 taxa; 6 families,13 genera,14 species and 2 varieties. 5 taxa were Gramineae, 4 taxa Chenopodiaceae, and 4 taxa Comrositae. The salt-water plant communities are a total of 10 communities as listed; Zoysia sinica-Artemisia scoparia community, Phacelurus latifolius community, Artemisia scoparia Cnidium japonicum community, Limonium tetragonum -Artemisia scoparia community, Artemisia scoparia community, Suaeda japonica community, Elymus dahuricus community, Suaeda asparagoides community, Zoysia sinica community, and Zoysia sinica-Suaeda japonica community. Analyzed by the community classification species class of constancy degree, Phacelurus latifolius, Cnidium japonicum, Limonium tetragonum, Suaeda japonica, Elymus dahuricus and Suaeda asparagoides belong to I, Zoysia sinica and Artemisia scoparia to II. Elymus dahuricus, Setaria viridis var. pachystachys, Echinochloa crusgalli var. oryzicola, Phacelurus latifolius, Atriplex gmelini, Salicornia herbacea, Calystegia soldanella and Aster tripolium belong to the accompaniment species to I: Zoysia sinica, Suaeda asparagoides, Artemisia capillaris to II; Suaeda japonica, Artemisia scoparia to III ; Cnidium japonicum to IV: Limonium tetragonum, Artemisia fukudo to V. And the ecological motif is the Phacelurus latifolius community.

• The Journal of Korean society of community based occupational therapy
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• v.9 no.3
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• pp.1-9
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• 2019

Objective : The purpose of this study was to verify the effect of sleep quality on activity participation in the elderly living in the community. Methods : This study was conducted on 200 elderly people using welfare institutions located in Jeollabuk-do from August 21 to September 29, 2019. Data collection was performed using the Korean version of the Pittsburgh Sleep Quality Index (PSQI-K) and the Korean-Activity Card Sort (K-ACS). The data were analyzed by descriptive statistics, independent t-test, Pearson correlation, and simple linear regression analysis. Results : The group with high quality of sleep showed significantly higher participation in instrumental activities, social activities and leisure activities than the group with low quality of sleep (p<.001). The quality of sleep was significantly correlated with instrumental activities, social activities and leisure activities (p<.01). The quality of sleep significantly affected the instrumental activities (R²=.224), social activities (R²=.142) and leisure activities (R²=.227) (p<.001). Conclusion : The quality of sleep needs to be approaches to promote the participation of elderly people living in the community, and development of an intervention program will be needed to improve quality of sleep.

• Journal of Food Hygiene and Safety
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• v.22 no.3
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• pp.165-172
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• 2007

Sanitary management with step-by-step working process and dietician's perception against them at 98 food service institutions located in Jeollabuk-Do were surveyed. Food service institutions included 13 hospitals, 38 schools,40 enterprises, and 7 others. Practice ratio of sanitary management items at purchasing and receiving step of food and food materials in food service institutions were 59.2-98.0%, and they were higher than those of other steps. In pre-treatment step, practice ratio of 'Undoing treatment of foods on the ground' in hospital was higher (53.8%) than those of enterprise (32.5%) and school (34.2%), and needed the improvement of pre-treatment procedure in enterprise and school. Practice ratio of all sanitary management items in cooking step were below 30%, and needed the improvement of cooking procedure. In storage step, the improvement of cooking procedure in school and enterprise were needed. Practice ratio of all sanitary management items in distribution step were low, and needed the improvement of this working procedure. However, in spite of low practice ratio on these items, dietician's perception against sanitary management items in all steps was low. Therefore, we estimated that the improvement of working processes and the conversion of dietician' perception on sanitary managements in food service institutions were needed.

• Journal of the Korean Association of Geographic Information Studies
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• v.18 no.2
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• pp.16-27
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• 2015

The parcels of land alteration by existing manual work was very inefficient in terms of time and costs. Especially it caused many difficulty in estimating compensation since the work didn't take into account the range of adjoining zone to road. This study selected Gimje City of Jeollabuk-Do as a study site and could analyze the numbers and areas of parcels of land alteration considering the range of adjoining zone to road based on cadastral maps and wide road layers from new address system. Also this study applied a fuzzy membership function according to occupation ratio to road, and analyzed compensation by the range of adjoining zone to road using individual public land price information of the parcels for land alternation. Especially, the change aspect of public and private parcels could be investigated by the range of adjoining zone to road according to the fuzzy membership function. And this study could provide very efficient data in determining the priority of the parcels for land alternation through calculating compensation of the parcels for land alternation by Eup Myeong Dong according to the range of adjoining zone to road.

• Journal of Bio-Environment Control
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• v.21 no.1
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• pp.33-38
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• 2012

Growth response of 'Sambokkul' watermelon grafted onto different rootstocks including 4 $Citrullus$ rootstocks and 3 other cucurbitaceous rootstocks was evaluated at two different temperature regimes. Significant reduction in plant growth rate was observed in plants grown at low temperatures (LT) as compared to those grown at normal or optimal temperatures. Relative growth reduction were 40~47% for vine length, 39~51% for total leaf area, 38~59% for shoot fresh weight, and 57~87% for plant dry weight, respectively. Watermelon rootstock PI 482322 showed comparable plant growth as the most popular rootstock 'Shintozwa' even at LT. 'Sambokkul' watermelon grafted onto watermelon hybrids, 'PI 271969 ${\times}$ PI 296341' and 'PI 271769 ${\times}$ Calhoun Gray', showed comparable plant growth as 'FR Dantos' bottle gourd rootstock. Index of growth ability at LT, which was calculated on the basis of reduced rate of vine length, dry weight and leaf area, was significantly high in $C.$ $martinezii$, 'Shintozwa', PI 482322, and 'PI 271769 ${\times}$ PI 296341' rootstocks (50% or higher) and low in own-rooted 'Sambokkul' or in watermelon plants on 'Knight' rootstock. Watermelon hybrids, 'PI 271969 ${\times}$ PI 296341' and 'PI 271769 ${\times}$ Calhoun Gray', showed better or at least comparable growth at low temperatures as compared to 'FR Dantos', confirming the feasibility of using watermelon rootstocks even in low temperature conditions.

• Korean Journal of Organic Agriculture
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• v.24 no.4
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• pp.907-917
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• 2016

This study aimed at improving the method of oil cake application in maize. The experiment was conducted during 2 years at NAS (National Institute of Agricultural Sciences) experimental field, located in Wanju-kun, Jeollabuk-do. Growth factors and nutrient use efficiency were evaluated depending on oil cake application depth, placement, and application rate. Difference in oil cake application method and depth was tested in 2012 and different placements of oil cake application were compared in 2013. Plant height, SPAD value, and dry weight of stem and corn were investigated. SPAD value, dry weight of stem and corn were significantly higher in oil cake banding treatment (OB5, 5 cm depth) as compared to others application methods, i.e. spreading (OS0), deep banding (OB10) and banding + spreading (OB5S). In addition, dry weight of stem and corn of banding treatments (OBL, OBLL) on rhizosphere and in between row (OBR) were higher than spreading treatment (OSP). Furthermore, in case of reduced application rate in additional fertilization did not decrease dry weight of corn and increased nutrient use efficiency. Therefore, it is concluded that banding application in 5 cm-depth and rhizosphere can improve growth and nutrient use efficiency in maize production.