• Pediatric Infection and Vaccine
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• v.9 no.2
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• pp.193-200
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• 2002

Purpose : This study was performed to investigate the epidemiology of viral acute lower respiratory tract infection(ALRI) in two different areas of Korea. Methods : A total of 796 patients hospitalized for ALRI aged 15 years or less from June 2000 to June 2001 in Samsung Seoul hospital(SSH) and Masan Fatima hospital(MFH) were enrolled. Viral etiologies were confirmed using nasopharyngeal aspirates. We compared etiologic agents, age distribution, clinical manifestations, and seasonal occurrence of viral ALRI between the two hospitals. Results : Virus was isolated in 208 patients(26.1%). The proportion of patients aged under 2 years in SSH was 60.2%, while those in MFH was 90.0%(P<0.05). Respiratory syncytial virus(RSV) was more prevalent in MFH, but adenovirus, influenza virus and parainfluenza virus were more prevalent in SSH(P<0.05). Croup and bronchiolitis occurred more frequently in MFH than in SSH(P<0.05). The most frequent viral pathogens causing bronchiolitis and croup were RSV and parainfluenza virus, respectively, in both hospitals. Adenovirus was the main cause of pneumonia in SSH, in contrast to RSV in MFH. In terms of tracheobronchitis, adenovirus was detected most frequently in SSH, whereas influenza virus-type A was mainly isolated in MFH. Similar pattern of seasonal occurrences of RSV, parainfluenza virus and influenza virus-type A was noted in both hospitals. Adenovirus was isolated sporadically throughout the study periods. Conclusion : Seasonal occurrence and clinical syndromes according to viral pathogens showed similar pattern in two areas. However, distribution of offending viruses was different, although this is mainly related to the different age distribution. An annual nationwide surveillance is necessary to understand the viral epidemiology associated with respiratory illnesses in Korea.

• The Journal of the Convergence on Culture Technology
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• v.5 no.3
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• pp.289-303
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• 2019

This paper presents research on furniture making based on Hojangjul, which is an engraving technique that highlights the wooden patterns of traditional furniture. Somokbang, one of the 12 workshops in Tongyeong, has used Hojangjul as an engraving technique since Imjinwaeran. It was inherited by the late Cheon Sang-won, who was No. 59 of National Important Intangible Cultural Properties, and developed into Samhojang, Ohojang, Seongtoinoimun, Hotguinoimun, and Gyeopguinoimun. It was then spread to Masan, Ulsan, and Gwangyang via marine routes and further into the inland areas via land routes, developing in various patterns and forms. The present study investigated and examined the making techniques and characteristics of Hojangjul engraved in joinery furniture in Tongyeong, Masan, and Ulsan in the Gyeongsang region and Gwangyang and Dongbok in the Jeolla region, thus shedding new light on the traditional techniques that have been gradually disappearing and promoting the transmission, inheritance, and development of the traditional techniques.

• The Korean Journal of Ecology
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• v.22 no.3
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• pp.145-153
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• 1999

Authors report the changes of the community structure and secondary succession after fire in Mt. Samma (333 m). Approximately six ha of the red pine (Pinus densiflora) forest and its floor vegetation were burned and cutted down. The vegetation and soil properties were investigated in the burned and unburned sites from April to October, 1998. The dominant species based on SDR₃ in the burned site were Lespedeza cyrtobotrya (96.87), Quercus serrata (77.90), Cyperus amuricus (46.22) and Miscanthus sinensis var. purpurascens (38.33), whereas the dominant species in the unburned site were Pinus densiflora (100.00) and Q. variabilis (66.10) at the tree layer, Q. serrata (100.00) and Zanthoxylum schinifolium (29.64) at the shrub layer., and Q. serrata (76.30) and M. sinensis var. purpurascens (72.84) at the herb layer. The biological spectra based on SDR₃ were Th-D₁-R/sub 5/-e for the burned and H (M)-D₁-R/sub 5/-e type for the unburned site, respectively. The index of similarity (CCs) between the burned and unburned sites was 0.41. The degree of succession (DS) were 609 for the burned and 1168 for the unburned site, respectively. The species diversity (H) and evenness indices (e) of the burned site were lower than those of the unburned site, but the dominance indices (C) was higher in the burned site. In the analysis of soil properties, pH, the content of NO₃/sup -/-N, available phosphrous, and exchangeable cations (K/sup +/, Ca/sup 2+/, Na/sup +/, Mg/sup 2+/) in the burned site were higher than those in the unburned site, whereas the contents of organic matter, total carbon, total nitrogen and NH₄/sup +/-N were lower in the burned site. The results show that dominant species in the burned site change from Miscanthus-Lespedeza→Lespedeza→Quercus and finally to Quercus forest, and the changes of soil properties also affect the early vegetational succession after fire.