• Korean Journal of Clinical Laboratory Science
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• v.39 no.2
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• pp.104-112
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• 2007

The purpose of this study was to evaluate the general features of allergic patients in northwestern Chungcheongnamdo who visited Soonchunhyang University Cheonan Hospital. The subjects in this study were 1692 suspected allergic patients. After their allergic symptoms were checked and a MAST-CLA test was conducted, the following results were obtained: 1. The mean age of the subjects was 23.1 years old. The male patients represented 56.2% and the female patients accounted for 43.8%. 1387 (82.0%) patients of those investigated suffered from allergic disease. 2. Among the 1387 patients, 1022 (73.7%) patients showed an increased total IgE level. The positive rate of those who were in their 40s (87.0%) was the highest, but their age made no difference to their positive rate of total IgE. 3. Concerning the positive rate for allergen specific antibody by age, those who were in their teens (73.5%) topped the list and similar in all age group except in their 40s. By gender, the positive rate of the male and female were 56.3% and 43.9% respectively. Regarding the positive rates by allergic disease, those who suffered from allergic rhinitis (60.4%) were most vulnerable, followed by the patients with allergic dermatitis (47.4%), with bronchial asthma (47.2%) and with urticaria (39.4%). 4. As for seasonal positive rates, they were most susceptible in April (77.2%) and May (71.1%). We discovered a significant difference according to seasons; Spring (60.1%), Winter (45.4%) and Summer (39.2%). 5. In case of Korean inhalent panel, the most dominant allergen-specific antibodies were "Cockroach mix" (31.1%), followed by "D. pteronyssius" (23.8%) and "Dog" (14.3%). In the event of food panel, the most popular allergen-specific antibodies were "D. farinae" (25.0%), followed by "D. pteronyssinus" (19.8%) and "Hose dust" (12.0%). 6. The residential type made no difference to the positive rates of "House dust", "Cockroach mix" and "Dog" as major antigen but compared with others, positive rates for "Tick" were somewhat higher in apartment buildings.

• Korean Journal of Environmental Agriculture
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• v.29 no.4
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• pp.427-433
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• 2010

Aquatic invertebrates are the major important fauna to sustain the paddy ecosystem as predators of the lower trophic level and prey for birds in food-web dynamics as well. The nationwide distribution of scavenger beetles (Hydrophilidae) that is the top predator in an aquatic insect in the paddy field was investigated. A total of 15 scavenger beetles were recognized. Enochrus simulans (98.6%) and Laccobius bedeli (87.7%) showed a high frequency of occurrence on a nationwide scale. The majority of scavenger beetles were higher frequency of occurrence in mountainous regions(33.7%) than in open field regions(5.0%). On the other hand, E. uniformis, Coelostoma stultum and Berosus japonicus showed a low occurrence frequency. Hydrochara affinis, Sternolophus rufipes, Amphiops mater, B. elongatulus, B. signaticollis punctipennis, B. lewisius and H. libera showed regional specific distribution aspect. Therefore, these species can be used as biological index to research the biotic changes in paddy ecology according to an agro-environmental changes including climatic change in the future.

• Korean Journal of Environmental Biology
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• v.32 no.3
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• pp.250-262
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• 2014

This study was carried out from March 2013 to July 2014 with the aim of examining folk plants used in Jeollabuk-do Province. The analysis of 885 surveys collected from 59 residents of 11 cities and counties shows that a total of 154 taxa composed of 137 genera, 140 species, 2 subspecies and 12 varieties belonging to 66 families are currently used in the province. Regionally, Wanju had the greatest variety with 135 taxa, followed by Gochang with 128, Muju with 104, and Jinan with 103. In terms of their use, the plants were most frequently used as food and medicine, with 112 taxa of edible, 62 taxa of medicine, 4 taxa of ornamental, 3 taxa of dye, 3 taxa of oil, 1 taxa of aroma, 1 taxa of sap, 1 taxa of spice, and 9 taxa of miscellaneous use. Regarding plant parts, leaves were used most often, followed by fruits, stems and roots. The coincidence degree between the standard names of plants and their local names was the highest in Muju at 59.4%, followed by Wanju at 51.8%, Buan at 51.0%, Gochang at 50.4% and Jinan at 46.3%. The information on how to use folk plants was almost always orally transmitted.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.51 no.5
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• pp.499-509
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• 2018

This study optimized the bone-softening and fishy odor-reducing process for mackerel Scomber japonicus products using response surface methodology (RSM). The RSM showed that the optimum concentrations of doenjang and citric acid for reducing the fishy odor in bone-softened mackerel were 11.8% and 0.04%, respectively, and the optimum immersion time was 52.2 min. The estimated overall acceptance, salinity, and acidity of the products under these optimum conditions were 7.7 points, 1.1%, and 202.6 mg/100 g, respectively, which were similar to the actual measured values of $7.6{\pm}1.2$ points, $1.0{\pm}0.1%$ and $203.2{\pm}3.8mg/100g$. Moreover, the heating temperature and time for bone-softening based on RSM were $107.3^{\circ}C$ and 4.4 h, respectively. The estimated hardness and proportion of skin removed from the product under the optimal conditions were $161.5g/cm^2$ and 0.09%, respectively, which were also similar to the actual measured values of $171.1{\pm}12.6g/cm^2$ and $0.10{\pm}0.02%$. The optimum bone-softening and fishy odor-reducing process for mackerel consisted of the following steps: thawing (${\leq}10^{\circ}C$, 8 h), filleting, washing/dewatering, immersing in an 11.8% doenjang -0.04% citric acid solution for 52 min, washing/dewatering, heating ($107.3^{\circ}C$, 4.4 h), freezing, depanning, internal and external packaging, and X-ray detection treatment.

• Korean Journal of Environmental Agriculture
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• v.26 no.3
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• pp.197-203
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• 2007

Zerovalent iron (ZVI) has been widely used in the removal of environmental contaminants from water. The objective of this research was to assess the efficiency of ZVI for immobilization of As (V) in the contaminated water under various chemical conditions. Batch-type experiments showed that the immobilization process followed a first-order kinetic model. Rate constant (k) of the reaction increased consistently and proportionally as increasing ZVI concentrations from 1% (0.158 $hr^{-1}$) to 3% (0.342 $hr^{-1}$), and temperatures from $15^{\circ}C$ (0.117 $hr^{-1}$) to $35^{\circ}C$ (0.246 $hr^{-1}$), respectively. Whereas the rate constant decreased as increasing As (V) concentrations from 1 mg $\Gamma^{-1}$ (0.284 $hr^{-1}$) to 3 mg $\Gamma^{-1}$ (0.153 $hr^{-1}$), and the initial pH from 3 (0.393 $hr^{-1}$) to 9 (0.067 $hr^{-1}$), respectively. Results demonstrated that As (V) in an aqueous solution was rapidly immobilized by ZVI treatments. Zerovalent iron was fast method for remediation of As (V) contaminated water.

• Journal of Life Science
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• v.23 no.10
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• pp.1252-1259
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• 2013

To investigate the effects of a fibrinolytic enzyme, BK-17, on the growth of human cancer cells, we performed various biochemical experiments, including cell proliferation and viability, and investigated subsequent morphological changes and apoptosis induction. BK-17 treatment of AGS human gastric and T24 human bladder carcinoma cells decreased the viability and the proliferation of the cells in a concentration-dependent manner. Microscopic studies indicated that the antiproliferative effects of the BK-17 treatment were associated with morphological changes, such as membrane shrinking, cell rounding up, and the formation of apoptotic bodies, indicating that BK-17 induced apoptosis in the cell lines. Of note, RT-PCR and Western blotting data indicated that the BK-17 treatment induced the down-regulation of antiapoptotic Bcl-2 members, Bcl-2 and $Bcl-X_L$, and the up-regulation of proapoptotic Bax members, Bax and Bad, in the AGS cells. BK-17-induced apoptosis of AGS cells was involved in the proteolytic activation of caspase-3, caspase-8, and caspase-9. Taken together, these findings suggest that BK-17 is associated with the induction of apoptotic cell death.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.35 no.2
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• pp.98-107
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• 2017

The Ministry of Agriculture, Food and Rural Affairs of Korea(MAFRA) has launched 'The Korea's Important Agricultural Heritage System(KIAHS)' in 2012 to conserve the regional heritages of agriculture and its significance. The effort has achieved in designation of seven KIAHS and two Globally Important Agricultural Heritage System(GIAHS). The policy environment has evolved a great deal since the launch of KIAHS. The study has evaluated the current policy condition of KIAHS and analyzed the shift on the KIAHS policy environment. The study has concluded the policy environmental changes as follows; insufficient Agricultural Heritage(AH) resource development, intensified interests in AH monitoring system, anticipated rural developments thru AH utilizations, under-budgeted AH conservation and management measures. The study has suggested the following based on the evaluation; establishment of AH Conservation and Management System as the conservation and management policy of AH, ease the designation standards for AH, obliged monitoring system for AH, developing AH brand, budget increase for AH conservation and management system. The suggest policy will successfully assist the further development and designation of AH. Farmers in AH area can maintain farm activities thru the conservation, management and utilization of AH, inheriting the important agricultural heritage for the future generation.

• Korean Journal of Veterinary Service
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• v.31 no.1
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• pp.1-16
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• 2008

Salmonella infections cause the disease in pigs but also some zoonotic Salmonella serotypes can be transmitted to human through swine products, resulting in food poisoning. The objective of this study was to investigate the bacteriological prevalence and detection of invA gene using Salmonella specific polymerase chain reaction (PCR), the epidemiological characteristics related to Salmonella strains cultured from pig samples in Gangwon areas using serotyping, random amplified polymorphic DNA (RAPD) and pulsed field gel electrophoresis (PFGE) methods. During the period of November 2001 through April 2002, 1,174 ileocecal lymph node were collected from the slaughtered pigs raised in 38 farms located in Gangwon province. The samples were submerged in boiling water and macerated in saline and lymph node homogenates were inoculated into Tetrathionate broth with iodine (TTB, Difco, 0.5% iodine was added) for enrichment growth. Then additional tests were performed using several mediums, and suspects were identified by API 20E kit (BioMerieux) and PCR. Of total 1,174 samples from 38 farms, 44 (3.7%) were isolated as Salmonella spp from 13 farms (34.2%). Of 44 isolates, 31 were in Yangyang region, followed by 9 in Goseong, 2 in both Gangneung and Sokcho. However, there was no difference in regional isolation frequency. All isolates have a 521bp amplified product in Salmonella specific PCR with primer invA which encodes in proteins for invasion of epithelial cells. Of 44 recovered serotypes, 23 (52.3%) were S Eingedi, 10 (22.7%) S Schwarzengrund, 9 (20.5%) S Typhimurium, and 2 (4.5%) S Mbandaka. In RAPD analysis, there appeared to be unique bands distinguishing each serotype, although similarities exist between the different serotypes. Four serotypes of 44 Salmonella isolates appeared to fall into 14 different RAPD types. In PFGE analysis, 9 S Typhimurium were tested with XbaI enzyme and SpeI enzyme. The combination of results obtained with two enzymes subdivided the 9 S Typhimurium into 4 PFGE types.

• Journal of the Economic Geographical Society of Korea
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• v.1 no.1
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• pp.57-74
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• 1998

Recently. the interest in Physical distribution has increased in economic geography This paper aims to review and prospect the internatonal physical distribution studies of international trade and international freight flows. And it has examined the changes in methodology of international physical distribution. Author has defined international physical distribution as the physical distribution of international trade and international freight flow The results are as follows : (1) As the methodology of international physical distribution studies developes, the physical distribution should be recognized not only as transportation phenomenon but also as total logistics which is understood as the combination of production and consumption including information flow. (2) The studies about model of international physical distribution flow ill need to study regional relations including urban, in the future. And economic geography and location theory adding culture and behaviour elements will be restructured, because not only state but also multinational corporation appear as trade subject in global economy. (3) The studies for the relation of habor and its hinterland in Physical distribution need to analyze the factors causing habor use with decision-making behaviour of corporation. (4) After oil crisis. as air freight is important, the studies for hinterland and foreland of freight centering international airport are needed because of necessity of light and small freight. flexible Production system, free trade, and high speed freight transportation of freshing food and flowers and so forth.

• Journal of the Korean Geographical Society
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• v.47 no.1
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• pp.79-97
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• 2012

This study examines on the impact of biodiversity in circular greenspace of Cheongju city since 2002 greenbelt release. Research has carried out to investigate the biotope pattern change with landscape fragmentation. Major landscape fragmentation has occurred with development of residential sector and build-up of major highways. Settlement has been expanded to the entire area connected to urban district excluding the eastern forest. North-south district shows high road density, where inter-regional roads meet in the cross-section. It is found that landscape fragmentation impact on species richness as well as population size of the species varies depending on the animal species. The birds show high species richness in N2, N3, N4, S2(north-south zone) even with high fragmentation rate. This can be explained that birds can access to aquatic environment where they can find abundant food resources. The amphibians and the reptiles show almost no zonal variation in species richness than the birds. The more a zone fragmented in small patches, the species richness of the amphibians and the reptiles also tends to be declined. Information accumulation on biodiversity for integrating landscape planning in urban planning, various level of community participation in decision making process, and cross border cooperation with neighbouring Cheongwon-gun will be required for sustainable greenspace management of Cheongju City.