Chung, Sang Hoon;Hwang, Kwang Mo;Lim, Seon Mi;Kim, Ji Hong
Journal of Forest and Environmental Science
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v.30
no.1
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pp.133-144
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2014
This study was carried out to review the pattern of forest stand development for six Gangwondo Baekdudaegan Mountains which experienced different type and duration of intensive legal protection. Vegetation data from point sampling method were employed to classify community types by cluster analysis on the basis of the importance values of canopy tree species for the study areas. The names of classified communities were given by the composition of dominant tree species. The communities were also compared one another in terms of stand structure by species diversity index. The results indicated that National Parks (Seoraksan and Odaesan) had greater proportion of mixed mesophytic forest type which was supposed to progress further forest succession process so as to have more complex and diversified stand structure. On the other hand, ordinary forest areas (Seokbyeongsan and Deokhangsan) had greater proportion of the forest types which was dominatively composed of Quercus mongolica and Pinus densiflora. The forest types with large amount of these two species would tend to develop for relatively short period of time of 40-50 years after artificial disturbances. Hyangnobong of Natural Protection Area and Hambaeksan of Natural Ecosystem Conservation Area showed intermediate stand development pattern in between National Parks and ordinary forest areas. The period of intensive legal protection of the forest area was positively correlated with species diversity index (R=0.736), and noted that the forest which received intensive protection regulation for longer period tended to show more complex and diversified stand structure.
Lee Hyun-Kyung;Kim Jun-Ho;Kim Chi-Kyung;Lee Dong-Hun
Korean Journal of Microbiology
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v.40
no.4
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pp.307-312
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2004
Diversity of the bacterial communities and the relation between community structure and components of wastewater were analyzed by 16S rRNA-based molecular techniques. Clone libraries of the 16S rDNAs from the sludges were constructed by PCR and cloning. The 1,151 clones from a sludge sample of sewage treatment plant were clustered into 699 RFLP phylotypes and the 1,228 clones from the wastewater disposal plant of chemical industry were clustered into 300 RFLP phylotypes. Shannon-Weiner diversity indices of two sampling sites were 8.7 and 6.1, indicating that the bacterial community structure of sewage treatment plant was more diverse than that of wastewater disposal plant of chemical industry. Forty clones belonging to predominant RFLP types were selected and sequenced. Seventy percent (28 clones) of the sequenced clones were related to the uncultured bacteria in public databases. The ${\beta}-Proteobacteria$ dominated in the bacterial communities of investigated two sludge samples. 16S rDNA sequences of the sewage treatment plant were similar to those of other activated sludges, while the bacterial community in wastewater disposal plant of chemical industry represented the strains identified from high-temperature, anaerobic, hydrocarbon-rich, and sulfur-rich environments. This result suggested that bacterial communities depended upon the components of wastewater.
Exaggerations have always been seen in the past and present. In the past, they represented wealth and high social status, but now they are being used to express one's beauty and personality. This has led to the diversity in design through widening each person's emotions. Likewise, exaggerations have been changed from the past to the present and so will they in the future. This study focuses on proposing patterns to enhance the utility and practical use of exaggerated jacket designs and its methods are based on documents and preceded studies. Pattern making is composed of drawing patterns and showing their forms by basting - which are a technique that is explained in this study's outcome - and the basic pattern is the style of Wan Suk. Suh. Jackets are made with exaggerating factors in the women's collections of 2011 F/W and are designed for various ages. With the knowledge of structuring a jacket, anyone could easily follow the instructions. In the end, he/she could elevate the ability to express, use practically and apply this idea in general fields of fashion industry.
This study is on the classification of Chchori forms in Korea in the 16 th and 17 th Centuries by investigating the patterns an construction of excavated clothong. The characteristic features of the Korean Chchori in the period are as follow. 1. The Chchori shows forms. The diversity is accomplished by varing the components pattern is Chchori, such as collar, sleeve, and bodice. The divertification in Chchori pattern represents an attempt to advance the simple Chchori pattern in the 4 th and 5 th Centuries to the mordern one. 2. Mokpankit (목판깃) has a straight construction line but Kalkit (칼깃), Dangkogit(당코깃) have curved one. This suggests a transformation in the construction line of Chchori. 3. Among Chchori pattern, some Mokpankit and Kalkit Chchori show two kinds in size ; 40-50 cm and 60-70 . However, Dangkokit Chchori has only one size of 40-50cm. Considering the difference in body size between man and woman , Mokpankit Chchori and Kalkit Chchori are jueged to be for man and woman commonly, and Dangkokit Chchori is for woman only. After the period , woman wears only Dangkokit Chchori, whichis thought to come from the sex discrimination. Consequently on the viewpoint of rinsiple of Adaptation to Environments, forementioned facts prove the changes in Korean society in the 16 th and 17 th centuries on the historical basis of costume.
Journal of Physiology & Pathology in Korean Medicine
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v.36
no.5
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pp.163-168
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2022
After the outbreak of COVID-19 in China, the national health commission of the people's republic of China distributed guidelines for the diagnosis and treatment of COVID-19. Based on that, each region of China made guidelines for traditional Chinese medical treatment of COVID-19 applicable to clinical field. Under the hypothesis that each region's guideline contains regional characteristics, a comparison was made on pattern identification among each region's guidelines and central guidelines. At the beginning of the analysis of the cases, opinions on pattern identification vary from region to region, and the diversity is mainly reflected in the early stage of the disease. When the guideline is organized to a certain level due to the accumulation of clinical cases, there is a strong tendency to enumerate various types of pattern identification. It means that as a specific infectious disease progresses, it can appear in various cases due to variables. In some guidelines, disease stages were analyzed by only a limited pathological mechanism, but no regional characteristics were found here. Rather, it may mean that unique characteristics for disease can be derived.
BACKGROUND/OBJECTIVES: Food shortage situation in North Korea has gained much interest, however food insecurity caused by the food shortage in North Korean households has not been much investigated. This study examined food security experiences and food consumption pattern of displaced North Korean households currently living in South Korea. SUBJECTS/METHODS: Food security experience among 51 North Korean households living in South Korea was examined using the Household Food Insecurity Access Scale (HFIAS) in three time points: immediately before childbirth, immediately before leaving North Korea, and immediately before entering South Korea. Meal/snack consumption frequencies and food diversity were also examined. RESULTS: Food security situation was the worst at the time of immediately before leaving North Korea with the average HFIAS score of 10.05. The households that were food insecure, they tended to be "severely" insecure. Although majority of the subjects reported having three or more meals a day, food diversity in their diet was very low with the average food diversity score of 2.17 immediately before childbirth and 1.74 immediately before leaving North Korea. Their diet appeared to heavily rely on grain and vegetable. CONCLUSIONS: This study is one of few that specifically examined food security of North Korean households with a pre-developed scale, and that demonstrated food security situation at different time points in quantified terms. Replicating this study with different groups of North Korean households for different time points would allow more complete understanding of impacts of food shortage. Food diversity score could provide a good way to examine changes of food consumption occurring to North Koreans in the process of adaptation. More attention to the changes occurring during adaption to South Korea should be given to understand the process and impact and to prepare public nutrition policy for the re-unified Korea.
Proceedings of the Korean Society of Crop Science Conference
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2017.06a
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pp.244-244
/
2017
Soil salinity due to accumulation of salts particularly sodium chloride affects agricultural lands and their vegetation. Generally, rice is a moderately sensitive plant with some cultivars with varying tolerance to salinity. Though there are physiological differences between salt-sensitive and salt-tolerant rice cultivars, both are still affected especially during high salinity and prolonged exposure. This also ultimately affects their indigenous bacterial endophytes particularly those that inhabit the rice seed endosphere. This study investigates the dynamic structure of seed bacterial endophytes of salt-sensitive and tolerant rice cultivars grown in different levels of soil salinity. Endophytic bacterial diversity was studied Terminal-Restriction Fragment Length Polymorphism (T-RFLP) analysis. Results revealed a very interesting pattern of diversity and shifts in community structure of bacterial endophytes in the rice seeds. There is a general decrease in diversity for the salt-sensitive rice cultivar, IR29 as soil salinity increases. For the salt-tolerant cultivars, IC32 and IC37, diversity interestingly increased at moderate salinity then decreased at high soil salinity. The patterns of community structure is also strikingly different for the salt-sensitive and salt-tolerant rice cultivars. IR29 has a more even distribution of abundance, but under soil salinity, the community shifted where Curtobacterium, Pantoea, Flavobacterium and Microbacterium become the more dominant bacterial communities. For IC32 and IC37, the dominant bacterial groups under normal stress conditions were also the dominant bacterial groups during salt stress conditions. Their seed bacterial community is dominated by endophytes belonging to Microbacterium, Flavobacterium, Pantoea, Kosakonia and Enterobacter. Stenotrophomonas and Xanthomonas have not changed in terms of abundance under different salinity stress level in the salt-sensitive and salt-tolerant rice cultivars. This study showed that soil salinity greatly influenced the seed bacterial communities of rice seeds irrespective of their physiological tolerance to salinity.
Kim Hong-Sik;Park Kwang-Geun;Baek Seong-Bum;Kim Jung-Gon;Nam Jung-Hyun
KOREAN JOURNAL OF CROP SCIENCE
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v.50
no.2
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pp.131-141
/
2005
Molecular-based genetic diversity for a set of 141 accessions of Korean barley cultivars and 24 accessions of foreign exotic cultivars were analyzed using random amplified polymorphic DNAs (RAPDs). Different level of genetic variability was observed with 30 random decamer primers in the Korean barley varieties and breeding lines which were preliminarily classified by morphological (hulled & hulless barley) and end-use (malting barley) and/or by the released periods. A total of 74 RAPD bands were scored, and the number of bands per primer varied from 1 to 7 with an average of 2.74. The hulled barley pool had one more marker genotype per primer than the hulless barley pool. The polymorphic information content (PIC) values based on the band pattern frequencies among genotypes varied depending on genetic pools where mean PICs of hulled, hulless and malting barleys were 0.62, 0.57, and 0.43, respectively. Certain genomic loci amplified by opR04, opF01, opB05, and opC13 were highly polymorphic with PIC>0.8. Patterns and temporal trends of genetic diversity assessed over the period from 1970s to 1990s had a tendency to increase, and in particular, this upward slant was quite clear and significant for the hulless barley pool. In the cluster analysis using genetic similarity matrix calculated from RAPD profiles, two major groups and several small subgroups were classified. Major grouping of materials was not affected by the presence of the husk but by their genetic background and the spike-row type. The validity of information on the genetic diversity and relationships between genotypes will have been reviewed to predict their yield potential.
In order to investigate the diversity of bacterial community in the mud flat of Sunchon Bay, Chunnam province, diversity of amplified 16S rDNA was examined. Total DNA was extracted from sediment soils and 16S rDNAs were amplified using PCR primers based on the universally conserved sequences in bacteria. Clonal libraries were constructed and 111 clones were examined by amplified rDNA restriction analysis (ARDRA) using HaeIII. Clones were clustered based on restriction patterns using computer program, GelCompar II. One hundred different RFLP types were detected from 111 clones. The 20 clones were selected and sequenced according to dendrograms derived from ARDRA, to cover most of the bacterial diversity in the clone libraries. None of the clones were identical to any representatives in the Ribosomal Database Project small subunit RNA databases and GenBank. All sequences showed between 77 and 96.8% similarity to the known 16s rRNA sequence from cultured organisms. The 20 clones sequenced fell into seven major lineages of the domain Bacteria: alpha-, delta-, gamma-Proteobacteria, low G+C Gram positive bacteria, high G+C Gram positive bacteria, Sphingobacteria (Cytophaga) and Cyanobacteria (chloroplast). Among the clones, the Proteobacteria were dominant.
Kim, So-Hye;Kim, Ju-Young;Ryu, Kyoung-A;Sohn, Cheong-Min
Korean Journal of Community Nutrition
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v.12
no.5
/
pp.583-591
/
2007
The purpose of this study was to assess the diet diversity, food habit and nutrient intake of obese adults who were visiting the health promotion center. This study was accomplished with the 138 obese adults (men = 103, women= 35) aged over 20 years old whose BMI were above $25 kg/m^2$. Nutrient adequacy ratio (NAR), the number of foods (Dietary Variety Score DVS), and food group consumed (Dietary Diversity Score, DDS) by using the data from the three days record were analyzed and the food habit and lifestyle were assessed by self reporting questionnaire. The average enemy intake of men was 2150.2 kcal which was significantly higher than that of women (p < 0.05). The intake ratio of carbohydrate, protein and fat over total energy was 54.8% : 19.3% : 25.8% in men, 59.5% : 17.8% : 22.6% in women respectively. Frequency of the breakfast in a week above 4, $2{\sim}3$ time and under one time was 75.7% 10.7% and 9.7% in men 77.1%, 5.7% and 14.3% in women respectively. frequency of eating between meals in a day under one time was 73.8% in men, 57.1% in women (p < 0.05). The average DDS and DVS was $3.63{\pm}0.07$ and $14.10 {\pm}3.45$, respectively which was significantly correlated with MAR (r=0.40 in DDS, r=0.64 in DVS, p < 0.01). The most frequent style of food pattern was DMGFV = 01101 in 35% of men, and DMGFV= 01111 in 37.1% of women. Our results show that dietary diversity and variety are useful parameters far evaluating nutrient intakes in obese adults. These findings suggest that nutritional education based on obese persons' eating behavior and eating diversity may be required to increase educational efficiency of weight control programs.
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