• Journal of the Korean Society of Environmental Restoration Technology
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• v.14 no.4
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• pp.25-40
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• 2011

The vascular plants in Jeokjabong, Bogil Island were listed 350 taxa composed of 89 families, 233 genera, 309 species, 1 subspecies, 36 varieties and 4 forms. Divided into woody plants were 142 taxa (40.6%) and herbaceous plants were 208 taxa (59.4%). Based on the list of rare and endangered species by Korea Forest Service and Korea National Arboretum, 3 taxa were recorded; Celtis choseniana, Asarum maculatum, Rubus sorbifolius, and endemic plants, 10 taxa were recorded; Asarum maculatum, Cephalotaxus koreana, Carpinus coreana, Celtis choseniana, Lespedeza maritima, Indigofera koreana, Dendropanax morbifera, Ligustrum quihoui var. latifolium, Weigela subsessilis, Carex okamotoi, and plant species subject to permission for taking abroad, 4 taxa were recorded; Celtis choseniana, Asarum maculatum, Vaccinium oldhami, Carex okamotoi. Based on the list of floristic regional indicator plants by Korean Ministry of Environment were total 64 taxa (18.3% of all 350 taxa of vascular plants); Ligustrum quihoui var. latifolium in class IV, 19 taxa (Stauntonia hexaphylla, Cinnamomum japonicum, Zanthoxylum ailanthoides, Daphniphyllum macropodum, Centella asiatica, Verbena officinalis, Mitchella undulata, etc.) in class III, 5 taxa (Potentilla dickinsii, Ostericum melanotilingia, Sanicula rubriflora, Caryopteris incana, Teucrium veronicoides) in class II and 39 taxa (Gleichenia dichotoma, Cyrtomium fortunei, Aphananthe aspera, Rubus hirsutus, Meliosma myriantha, Hedera rhombea, Ainsliaea apiculata, etc.) in class I. Based on the list of naturalized plants, 5 families, 17 genera, 20 taxa (Phytolacca americana, Lepidium virginicum, Robinia pseudo-acacia, Verbesina alternifolia, Lolium perenne, etc.) and naturalization rate was 5.7% of all 350 taxa of vascular plants. Hereafter natural ecosystem into disturbance on naturalized plants and legal protection species and rare and endangered species distribute in the Bogil Island, precision investigation after management counterplan of the monitoring a point of view be required.

• Korean Journal of Community Nutrition
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• v.5 no.2
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• pp.307-315
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• 2000

The aim to this study was to investigated the effects of family type on the health-related behaviors, food behaviors, and nutrient adequacy ratio of the elderly. Studies were performed on 109 home-bound elderly in a rural area of Asan city, in 1996. Subjects were divided into two groups by their family type, one was single-elderly family(n=58) and the other was extended family(n=51). The results obtained by questionaires and personal interviews as follows. 1) The average age 68.6. They served in primary industry, and 89.1% of responders received less than a primary school education. There was no significant difference by family type. 2) Single-elderly family members themselves felt more negative about their health than extended family members. 3)Each nutrient adequacy ratio of single-elderly family/extended family members was 0.72/0.76 of energy, 0.73/0.76 of protein, 0.59/0.66 of Ca, 0.98/0.99 of Fe, 0.62/0.74 of vitamin A, 0.86/0.87 of thiamin, 0.72/0.73 of riboflavin, 0.71/0.77 of niacin, 0.90/0.91 of ascorbic acid, and 0.76/0.80 of Mar. The NAR of vitamin A of the single-elderly family members was significantly lower than for extended family members(p〈0.05). Energy, protein, Ca, vitamin A, riboflavin showed insufficient intake for both groups. The percentage of INQ〈1 of the single-elderly family/extended family members was 45.6/51.0 of protein, 66.7/66.7 of Ca, 64.9/56.9 of vitamin A. By NAR and INQ, the most insufficient nutrient to the elderly in this rural area was Ca. We there for suggest that it is needed for elderly in rural areas to receive of food that is higher ING of Ca.

• Journal of Forest and Environmental Science
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• v.38 no.3
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• pp.174-183
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• 2022

The study aims to examine population indices of mature trees in Jebel Elgarrie forest, Blue Nile State, Sudan. We used remote sensing techniques to stratify the forest into vegetation classes depending on tree density. We distributed 97 circular sample plots (0.1 ha) proportionally to the area of the vegetation classes. In each sample plot we identified, counted and recorded all mature trees (DBH ≥10 cm). We calculated frequency, density, abundance, richness, evenness and diversity for each species and we drew abundance rank curve of mature trees. We used One-Way ANOVA to test for differences (α=0.05) in mean density (No./ha) of mature trees between vegetation classes. Results revealed that the forest was conveniently sub-divided into high density (C1), medium density (C2), low density (C3) and bare farm land (C4) classes. We identified fifteen tree species that belong to 10 families and 14 genera. Combretaceae and Fabaceae were the common families while Anogeissus leiocarpa was the most frequently occurring species. While species diversity varied between vegetation classes, diversity of the forest as a whole is low. While mean density of mature trees in C1, C2, C3 and C4 it was 100, 74, 10, and 0, respectively, it was 54 for the whole forest indicating low stocking, Following One-Way ANOVA, multiple comparisons revealed significant differences in mean density of mature trees between C1 & C3 and C2 & C3. The study provided empirical results on population indices of mature tree species, which would be of importance for successful management and conservation of the forest.

• Animal Bioscience
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• v.36 no.10
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• pp.1508-1516
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• 2023

Objective: To carry out a comprehensive production planning of the existing Rongchang pig population from both environmental and genetic aspects, and to establish a closed population with stable genetic diversity and strict pathogen control, it is necessary to fully understand the genetic background of the population. Methods: We genotyped 54 specific pathogen free (SPF) Rongchang pigs using the Zhongxin-1 Porcine Breeding Array PLUS, calculated their genetic diversity parameters and constructed their families. In addition, we also counted the runs of homozygosity (ROH) of each individual and calculated the value of inbreeding coefficient based on ROH for each individual. Results: Firstly, the results of genetic diversity analysis showed that the effective population size (N_e) of this population was 3.2, proportion of polymorphic markers (P_N) was 0.515, desired heterozygosity (H_e) and observed heterozygosity (H_o) were 0.315 and 0.335. H_o was higher than H_e, indicating that the heterozygosity of all the selected loci was high. Secondly, combining the results of genomic relatedness analysis and cluster analysis, it was found that the existing Rongchang pig population could be divided into four families. Finally, we also counted the ROH of each individual and calculated the inbreeding coefficient value accordingly, whose mean value was 0.09. Conclusion: Due to the limitation of population size and other factors, the genetic diversity of this Rongchang pig population is low. The results of this study can provide basic data to support the development of Rongchang pig breeding program, the establishment of SPF Rongchang pig closed herd and its experimental utilization.

• ALGAE
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• v.26 no.2
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• pp.109-140
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• 2011

Taylor's (1960) floristic treatment of the benthic marine algae of the tropical and subtropical western Atlantic and Wynne's (2011) "checklist: third revision" serve as benchmarks in a review of changes made in the past half-century period. There has been a great increase in the number of recognized taxa of red, brown and green algae at all taxonomic ranks: from 758 to 1,393 species, an increase of 84%; from 231 to 406 genera, an increase of 75%; and from 63 to 106 families, an increase of 68%. In regard to recognized infraspecific taxa, the increase was less dramatic, from 140 to 185, thus a 32% change in the 50-year period. This review addresses the question: What factors were responsible for this proliferation of taxa that are now recognized in this domain of the tropical and subtropical western Atlantic? The answer is that many reasons contributed to these changes. Foremost among these causes have been the advances in gene-sequencing technologies. Revised phylogenetic relationships have led to many genera being divided into more than one genus, as well as new families and orders being delineated. Numerous examples of cryptic species have been discovered by gene-sequence and DNA-bar coding studies. This trend is depicted by case studies. Examples of genera being divided are Galaxaura, Liagora and Laurencia. Tricleocarpa and Dichotomaria have been segregated from Galaxaura. Trichogloeopsis, Ganonema, Izziella, Yamadaella, and Titanophycus have been segregated from Liagora. Chondrophycus, Osmundea, Palisada, and Yuzurura have been segregated from Laurencia. Examples are given of other genera present in this region of the western Atlantic that have been split up. Many genera have increased in terms of the number of species now assigned to them. Taylor's (1960) treatment recognized only two species in Hypoglossum, whereas Wynne's (2011) checklist contained a total of 9 species of Hypoglossum. Taylor's account included only two species of Botryocladia, but this number had grown to 15 in Wynne's checklist. Examples of new genera and species occurring in the region of the western Atlantic are given, and examples of taxa being newly reported for this domain are provided. An increase in the number of phycologists in Latin and South America, exploration of previously unexplored regions, and the increasing use of SCUBA for collecting and at greater depths have all contributed to the increase in the number of algal taxa that are now recognized as occurring in the tropical and subtropical western Atlantic.

• Journal of Families and Better Life
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• v.10 no.2
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• pp.209-229
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• 1992

The purpose of this study is to develop Family Life Education program for Marital education in Korea. In order to realize the about research purpose, this study is divided into three sections. First, nature conception and contents f Family Life Education, second, patterns and models for Family Life Education Program in USA and Korea, and Third, the future of Family Life Education. Family Life Education (FLE) is an education originated in reaction to changing social conditions, industrialization and urbanization, it deals with the perceived inadequacies of families to cope with these changes, thereby reduction social problems involved with, and improving family life. With and assumption that the studies about FLE have not been so active in Korea, the present thesis examines the FLE in Korea. The necessity of marital education in Korea Is based upon the theories of FLE in the United States of America. Also, it atempts to formulate a tentative plan for the promotion of a FLE program in Korea. The concept of FLE in Korea was manifested in the social educational law and life-span education. specified as 4th among ten presidential regulations. It is defined as " the Life-span developmental education to enhance the quality of human life, to solve family problems, to develop an individual's potentiality and to strengthen the family relations. of the FLE programs, the marital education is considered one of the furcial wubjects becaused it is the core of the family life. With this premise, FLE tries to wupport the healthy mrital relations. subsequently helping to explore the family potentiality and to strengthen family ties. The objects of the FLE program are unmarried, pre-marred , and married persons. For the married persons, the FLE program should be arranged in accordance with their rrital status divided by the family life cycle so that they may prevent possible family problems at each stage of the family life. Also, to prevent the problems occurred in the course of carrying out family functions, the FLE program should be provided with on the basis of a family unit, thereby improving the quality of the family functions. The FLE is to hep persons begin smoothly the adaption process for a successful marital relations. For the FLE to be practised more widely systematically, research on family education--that is basic study, research and production and evaluation or the FLE to be carried out by research institute wholly responsible for it-- should be done first.

• Journal of Forest and Environmental Science
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• v.35 no.4
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• pp.248-257
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• 2019

We chose the Mt. Dalum area (located in Gijang-gun, Busan, Korea) for our survey, particularly The pine wilt disease zone and the non-permanent control area. This study investigates the effect of pine wilt disease on the distribution of beetle species in the process of ecosystem change due to insect control; pine forests treated for pine wilt disease were divided into insect control and non-control sites, respectively. The results of this study are as follows. Twen tyseven species belongs to 12 families were identified from 969 ground beetles collected from this sites. Species richness was the highest in Coleoptera (6 species, 469 individuals). In the control site, 21 species belongs to 10 families were identified from 228 individuals, while 24 species of 11 families from 533 individuals in the non-control area. The highest number of species were noted in June and July from the non- control and control sites, respectively. The highest number of insects in control and non-control sites was observed in July, while the lowest in September. Sipalinus gigas gigas, Spondylis buprestoides, Plesiophthalmus davidis, Calosoma maximowiczi, Damaster jankowskii jankowskii, and Damaster smaragdinus were captured in both study sites. Episomustur ntus and Glischrochilus ipsoides were only captured in the control site, while Macrodorcas rectus rectus and Pheropsophus javanus were only captured in the non-control site. Six beetles and five species (such as Calosoma maximowiczi) were found in the control site and six species (including Damaster smaragdinus) in the non-control site. The species distributions by altitude were 163, 518, and 258 individuals, at 100, 200 and 300 m sites, respectively. The diversity, evenness, and dominance indices in the control area were 0.764, 0.812, and 0.367, respectively. The diversity, evenness, and dominance indices in the non-control area were 0.927, 0.837, and 0.352, respectively. The similarity index between the control and non-control area was 80%.

• Korean Journal of Childcare and Education
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• v.11 no.1
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• pp.1-22
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• 2015

This study analyzed the policies related to parents in child care centers from 1991 to 2013 as shown in the guidance for child care business book published by the government and accredited journals by the National Research Foundation. Policies related to parents in child care centers were divided into the following periods: 1) the period of passive parent education focused on low-income families (1991-1994), 2) the period of relief for dual-income families (1995-1997), 3) the period of relief for adoption families and the practice of child care support services (2004-2007), 4) the period of active parent involvement (2008-2013). On the other hand, the research trends of parent education in child-care centers were as follows: 1) the survey of parent education was the most common at first, 2) the studies of the role and disposition of parents occupied the bulk, 3) the studies of parents' needs and satisfaction on parent involvement appeared plenty, 4) the studies of the personalized parent education increased. Consequently, the need for home care services and the importance of parents' education were suggested.

• Journal of Environmental Science International
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• v.12 no.12
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• pp.1207-1213
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• 2003

Osancheon creek is located in the southwest of the middle area in Korea. Weed community around the Osancheon creek, where various disturbances exert a bad influence directly on its community by human work or nature, was surveyed phytosocialogically. Our surveys have been accomplished from June, 2003 to September, 2003. Weed communities formed around the Osancheon creek were divided into several patterns and analysed. They have been divided into 8 communities. Community A: Humulus japonica community, B: Phragmites communiscommunity, C: Persicaria thunbergii community, D: Zi=ania latifolia community, E: Miscanthus saccharilflorus community, F: Echinochica crusgalli community, G: Typha orientalis community, H: Sataria viridis community. The flora surveyed in these communities was constituted of 19 families, 36 genera, 4 varieties, and 40 species. Wild plants such as Artemisia princeps var. orientalis Erigeron annuus, Bidens frondosa, Aeschynomene indica and Oenothera odorata were mostly light loving plants and higher resistant plants against the disturbance. Our result from the ranking all surveyed areas by the Bray-Curtis ordination method was very similar to the results from phytosocialogical table work.

• Journal of Families and Better Life
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• v.22 no.6 s.72
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• pp.155-164
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• 2004

The purpose of this study is to discover similarities and dissimilarities in life style and other factors for housing choices between two generations living in same household. It will provide knowledge that is helpful in understanding the two generations and develop marketing strategies for houses as a commodity that accommodates the life style of both generations. The data of this study were collected from October to November 2003, using a structured, self-report questionnaire that contains questions on 40 dimensions of life style and 33 items on housing choices. The original respondents consisted of 307 university students and their parents living in Seoul. The ages of the younger generation were limited from ぉ to 29. The final participants in this study included 224 sets of university students and their parents, that is, about 448 respondents. Frequency, percentage, factor analysis, paired t-test and means were used for data analysis. The results show that the life style may be divided into nine sub-types. There were generational differences in If-oriented lifestyle, Conservative lifestyle, As- service self-expression lifestyle, Pragmatic lifestyle, Convenience lifestyle, Self-development lifestyle, and Leisure-oriented lifestyle. Especially in the categories of Convenience lifestyle, If-oriented lifestyle and Positive Self-expression lifestyle, the younger generation ranked higher than their parents. The most important factors in housing choice may be divided into eight sub-categories. Among them are economic factors, housing amenities, housing design, distance from parents and children, social and environmental qualifies, and distance from work place and school. The two generations differed over the importance of the factors. The younger generation particularly valued the factors of distance from parents and children, housing amenities, housing design.