• Proceedings of the Korean Information Science Society Conference
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• 2007.06d
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• pp.220-224
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• 2007

번호이동성은 이용자가 사업자, 위치, 서비스 등을 변경하더라도 기존에 사용하던 전화번호를 그대로 사용 할 수 있도록 하는 제도로써 통신 산업의 경쟁을 활성화하고 이용자의 편익을 증진시키기 위해 도입되었다. 현재는 시내전화 내 또는 이동전화 내에서와 같이 단일 역무 내에서만 번호이동성이 시행되고 있지만, 광대역통합망(BcN)과 같은 IP기반의 컨버전스 네트워크 상의 번호이동성에서는 URI 기반 라우팅, 이종 역무간 번호이동과 같은 고려사항이 발생하게 된다. 본 고에서는 BcN 상의 번호이동 시스템을 구현하기 위한 ENUM DNS 활용방안을 제시하고자 한다.

• Proceedings of the KSRS Conference
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• 2008.03a
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• pp.224-230
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• 2008

본 연구는 산림 내 임상을 구획하기 위해 고해상도 IKONOS 위성영상을 객체 지향기반으로 분할 및 분류하였다. 영상분할 시 분광정보와 공간정보를 동시에 이용하여 모양이나 분광정보에 있어서 동질한 영역이라고 정의되는 영상객체를 생성하였다. 분할된 영상을 분류계급(class)으로 분류하기 위하여 NDVI와 경사, 방위, 고도 등 지형인자를 새로운 레이어로 추가시키고, 분류개념을 형성하기 위하여 퍼지 규칙을 사용하였다. 영상의 획득시기가 5월초인 점을 감안하여 NDVI는 0.2, 경사 $^{\circ}5^{\circ}$ 그리고 고도 130m를 기준으로 산림과 비산림지역을 분류할 수 있었고, 지형인자에 영향을 많이 받는 굴참나무와 신갈나무 또한 효율적으로 분류할 수 있었다.

• The Korean journal of internal medicine
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• v.33 no.6
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• pp.1241-1251
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• 2018

Background/Aims: To estimate the level of agreement and positivity rates of latent tuberculosis infection (LTBI) tests prior to the use of tumor necrosis factor (TNF) inhibitors in relation to underlying rheumatic diseases and endemic tuberculosis levels. Methods: The Ovid-Medline, Embase, and Cochrane Libraries were searched for articles before October 2013 involving LTBI screening in rheumatic patients, including rheumatoid arthritis (RA), ankylosing spondylitis (AS), juvenile idiopathic arthritis (JIA), and psoriatic arthritis. Results: In pooled analyses, 5,224 rheumatic patients had undergone both a tuberculin skin test (TST) and an interferon-gamma release assay (IGRA) before TNF inhibitors use. The positivity of TST, QuantiFERON-TB Gold In Tube (QFT-GIT), and T-SPOT.TB (T-SPOT) tests were estimated to be 29%, 17%, and 18%, respectively. The agreement percentage between the TST and QFT-GIT, and between the TST and T-SPOT were 73% and 75%. Populations from low-to-moderate endemic TB presented with slightly less agreement (71% between TST and QFT-GIT, and 74% between TST and T-SPOT) than patients from high endemic countries (73% between TST and QFT-GIT, and 81% between TST and T-SPOT). By underlying disease stratification, a lower level of agreement between TST and QFT-GIT was found among AS (64%) than among JIA (77%) and RA patients (73%). Conclusions: We reaffirm the current evidence for accuracy of LTBI test done by TST and IGRA among rheumatic patients is inconsistent. Our stratified analysis suggests different screening strategies might be needed in clinical settings considering the endemic status in the patient's country of origin and the precise nature of underlying diseases.

• Natural Product Sciences
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• v.17 no.3
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• pp.221-224
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• 2011

A $CH_3Cl$ extract from the flower of Lonicera japonica (Lauraceae) significantly protected primary cultures of rat cortical cells injured by the excitotoxic amino acid, L-glutamate. Loganin (1), secoxyloganin (2), caffeic acid (3) rutin (4), hyperoside (5), quercetin-3-O-glucoside (6), lonicerin (7), kaempferol-3-O-rutinoside (8), luteolin-7-O-b-D-glucopyranoside (9), quercetin (10) and luteolin (11) were isolated by bioactivity-guided fractionation from the $CH_3Cl$ fraction and further separated using chromatographic techniques. Caffeic acid, lonicerin, kaempferol-3-O-rutinoside, quercetin and luteolin had significant neuroprotective activities against glutamate-induced neurotoxicity in primary cultures of rat cortical cells at concentrations ranging from $0.1{\mu}M$ to $10.0\;{\mu}M$.

• Journal of Korean Dental Hygiene Science
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• v.5 no.2
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• pp.45-52
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• 2022

Background: This study was aimed at obtaining basic data necessary to develop alternatives to improve the oral health-related quality of life of the elderly by investigating dry mouth and oral health-related quality of life of patients visiting the N Dental Clinic in Jeollanam-do. Methods: From November 2021 to September 2022, data were collected using a self-report survey of adults aged 50 years or older. Of the 300 questionnaires collected, 280 had insufficient data because of missing entries. Results: Analyzing the satisfaction level of oral health-related quality of life according to the participants' medical use and subjective oral health recognition, "what do you think your oral health is like" showed significant differences (p< 0.001). Dry mouth and satisfaction were positively correlated with the oral health-related quality of life (β=0.42, p= 0.00). Factors affecting the quality of life related to oral health were "total score of oral dryness" (β= 0.395) and "what do you think your oral health is like" (β=0.224). Conclusion: The results of this study suggested that systematic intervention, such as oral health programs, suitable for age may improve the oral health-related quality of life.

• Journal of the Korean Society of Food Culture
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• v.34 no.2
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• pp.224-232
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• 2019

This study evaluated the physicochemical and microbial quality characteristic of seasonal commercial kimchi for hygienic safety levels. The pH of seasonal commercial kimchi was 3.84-6.36 and the titratable acidity and salinity of the samples were 0.21-1.16 and 1.19-1.54%, respectively. The content of nitrate and nitrite in the commercial kimchi were lower in the spring and summer, which was affected by acidic condition of the kimchi depending on fermentation. Heavy metal contents in commercial kimchi are not an issue because they were detected only at very low levels. The total aerobic bacteria and coliforms counts ranged from 5.25 to 8.44 Log CFU/g and 0.00 to 5.08 Log CFU/g, respectively. The total aerobic bacteria and coliforms were detected more in summer than in the other seasons. E. coli was detected in three of the samples tested. Food-borne pathogens were not detected in any of the samples except for B. cereus. B. cereus was detected in the fall in more than 70% of samples. These results suggest that commercial kimchi distributed in the fall maintain the quality properties and the microbiological safety of kimchi compared to the other seasons. Therefore, further studies as an effective distribution system for the particular seasons will be needed to guarantee the hygienic safety levels of commercial kimchi required by the consumers.

• Pediatric Infection and Vaccine
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• v.21 no.3
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• pp.219-224
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• 2014

Invasive infection of the Streptococcus bovis group in a neonate is rare. In cases reported to date, the pathogen of neonatal S. bovis infections is usually Streptococcus gallolyticus subsp. pasteurianus (S. bovis biotype II/2). Streptococcus lutetiensis (S. bovis biotype II/1) was identified using 16S rRNA and tuf gene sequence analysis of the isolates from blood and cerebrospinal fluid (CSF) of a fever-presenting 28-day-old male. Blood culture analysis was performed using automatic equipment (VITEK 2) and identified Streptococcus infantarius supsp. infantarius, yet we were unable to get accurate results from the CSF culture. The fever subsided on the second day of hospitalization, and the patient was discharged without neurologic complication after 14 days of antibiotic therapy. In this case, we were able to accurately identify the pathogen using molecular genetic methods. To our knowledge, this is the first case of late onset neonatal bacteremia and meningitis caused by S. lutetiensis.

• The Journal of Society for e-Business Studies
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• v.16 no.3
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• pp.211-224
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• 2011

Since appearance of smart devices and cloud computing services, the social and economical values of administrative information have been magnified as valuable information. In order to make better use of various administrative information by diverse government organizations efficiently and effectively, information sharing based on legal systems is essential because of several obstacles including privacy. To suggest practical ways for using administrative information, this study categorized the administrative information sharing process, and analyzed the regulations and legal systems that are contradictory to the regulations. The result of analysis appears that there is a need of legislative base for well-defined business use of information, and a need of the organizations, that available to collect and manufacture the information. The results of this study can be expected to make legislation contributions not only for industries, but also by suggesting the policy making and guidelines to protect privacy and improve the quality of citizens' life.

• The Plant Pathology Journal
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• v.27 no.3
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• pp.207-224
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• 2011

Diseases caused by plant pathogenic bacteria constitute an emerging threat to global food security. Xanthomonas is a large genus of Gram-negative bacteria that cause disease in several host plants leading to considerable losses in productivity and quality of harvests. Despite the ranges of controlling techniques available, the microbiological safety of economically important crops and crop plants including fruits and vegetables continues to be a major concern to the agriculture industry. On the other hand, many of the currently available antimicrobial agents for agriculture are highly toxic, non-biodegradable and cause extended environmental pollution. Besides, the use of antibiotics has provoked an increased resistance among the bacterial pathogens and their pathovars. Thus, novel efficient and safe remedies for controlling plant bacterial diseases are necessary. There has been an increasing interest worldwide on therapeutic values of natural products such as essential oils, hence the purpose of this review is to provide an overview of the published data on the antibacterial efficacy of essential oils that could be considered suitable for application in agriculture as biocontrol measures against plant pathogenic bacteria of Xanthomonas species. The current knowledge on the use of essential oils to control Xanthomonas bacteria in vitro and in vivo models has been discussed. A brief description on the legal aspects on the use of essential oils against bacterial pathogens has also been presented. Through this review, a mode of antibacterial action of essential oils along with their chemical nature and the area for future research have been thoroughly discussed.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.28 no.4A
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• pp.224-231
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• 2003

In this in this thesis, we have proposed the Kor-231 which compared with Hata by dividing 4 classes and 8 details, which based on that the area subdivision which is defined by the City planning Regulation of Korea classified on its rate of building-to-land, floor area and distance between buliding and botanical coefficient. The experiments are carried out at the point of the RMS delay spread and the recerived power in the two kinds of geographical areas, LOS(Line of Sight) and N-LOS(Non Line of Sight). When the measured result is compared with Kor-231 model, we can catch the result that received power are 25.5dB and 14.5dB, the RMS delay spread are 101ns and 35ns and N-LOS received power are 4.1dB and 1.6dB. So we have certified that it is well due to the result analyzed into the difference of the RMS delay spread from 74ns to 200ns.