• Journal of Wetlands Research
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• v.25 no.4
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• pp.335-344
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• 2023

Brachydiplax chalybea flavovittata, a climate-sensitive biological indicator species, was first observed and recorded at Jeju Island in Korea in 2010. Overwintering was recently confirmed in the Yeongsan River area. This study was aimed to predict the potential distribution patterns for the larvae of B. chalybea flavovittata and to understand its ecological characteristics as well as changes of population under global climate change circumstances. Data was collected both from the Global Biodiversity Information Facility (GBIF) and by field surveys from May 2019 to May 2023. We used for the distribution model among downloaded 19 variables from the WorldClim database. MaxEnt model was adopted for the prediction of potential and future distribution for B. chalybea flavovittata. Larval distribution ranged within a region delimited by northern latitude from Jeju-si, Jeju Special Self-Governing Province (33.318096°) to Yeoju-si, Gyeonggi-do (37.366734°) and eastern longitude from Jindo-gun, Jeollanam-do (126.054925°) to Yangsan-si, Gyeongsangnam-do (129.016472°). M type (permanent rivers, streams and creeks) wetlands were the most common habitat based on the Ramsar's wetland classification system, followed by Tp type (permanent freshwater marshes and pools) (45.8%) and F type (estuarine waters) (4.2%). MaxEnt model presented that potential distribution with high inhabiting probability included Ulsan and Daegu Metropolitan City in addition to the currently discovered habitats. Applying to the future scenarios by Intergovernmental Panel on Climate Change (IPCC), it was predicted that the possible distribution area would expand in the 2050s and 2090s, covering the southern and western coastal regions, the southern Daegu metropolitan area and the eastern coastal regions in the near future. This study suggests that B. chalybea flavovittata can be used as an effective indicator species for climate changes with a monitoring of their distribution ranges. Our findings will also help to provide basic information on the conservation and management of co-existing native species.

• Proceedings of the Zoological Society Korea Conference
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• 1996.04a
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• pp.39.2-39
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• 1996

• Proceedings of the Zoological Society Korea Conference
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• 1996.04a
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• pp.40.1-40
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• 1996

No Abstract, See Full Text

• Korean Journal of Head & Neck Oncology
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• v.1 no.1
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• pp.81-86
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• 1985

A case of primary laryngeal non-Hodgkin's lymphoma is detailed with a review of the literature, on this rare site of presentation. Histologic findings and radio-therapeutic technique are included with longterm follow-up data. Local radiotherapy is a curative treatment of choice due to longterm NED survival with preservation of voice.

• Applied Biological Chemistry
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• v.51 no.4
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• pp.263-268
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• 2008

Seventy-one Bacillus cereus strains (12 references and 59 food isolates) were analyzed for the occurrence of five different enterotoxin genes (nheABC, hblCDA, entFM, cytK, and bceT) and one emetic toxin cereulide synthetase gene (ces) by PCR (polymerase chain reaction). PCR analysis revealed eight toxigenic patterns in all B. cereus strains tested; they all carried both entFM and nheABC. The presence of hblCDA, cytK, and bceT varied according to the enterotoxin-producing strains, among which hblCDA was the least frequently detected in the food-isolated strains. Only five B. cereus strains harbored ces, associated with the emetic type of food poisoning; however, these strains were devoid of hblCDA, cytK, and bceT.

• Proceedings of the Korea Multimedia Society Conference
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• 2012.05a
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• pp.99-101
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• 2012

산업현장에서 최종 생산품의 신뢰성 검증단계에 사용되는 PC기반 테스트 장비들은 생산제품의 특성에 따라 인위적인 과전압 인가, 고/저온 테스트, 잦은 강제 셧다운 등 많은 스트레스로 인해 잦은 고장과 오동작을 일으킨다. 테스트 장비의 고장은 생산성 저하와 직결됨으로 신속한 고장원인의 파악을 위한 진단 시스템이 요구된다. 본 논문에서는 테스트 장비의 하드웨어 상태를 효율적으로 진단할 수 있는 하드웨어와 지식정보기반 진단결과의 분석을 통한 오류원인 및 불량파트의 범위를 줄여줄 수 있는 분석 소프트웨어를 제안한다.

• Journal of Forest and Environmental Science
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• v.32 no.1
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• pp.94-98
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• 2016

Calamus andamanicus Kurz is one of the commercially important solitary rattans endemic to Andaman and Nicobar islands. The habitat suitability modeling program, MaxEnt, was used to predict the potential ecological niches of this species, based on bioclimatic variables. The study revealed high potential distribution of C. andamanicus across both Andaman and Nicobar islands. Of the 33 spatially unique points, 21 points were recorded from South and North Andamans and 12 from Great Nicobar Islands. The islands like Little Andaman, North Sentinel, Little Nicobar, Tllangchong, Teressa were also predicted positive even though this rattan is not recorded from these islands. Mean diurnal range, higher precipitation in the wettest month of the year, annual precipitation and precipitation in the driest month are the main predictors of this species distribution.

• Food Science and Biotechnology
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• v.14 no.6
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• pp.875-877
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• 2005

Presence of Enterobacter sakazakii, occasional pathogen of powdered infant formula causing rare, but life-threatening diseases such as neonatal meningitis, bacteremia, necrotizing enterocolitis, and necrotizing meningoencephalitis after ingestion was examined in 45 powdered infant formula products manufactured in Korea using chromogenic Druggan-Forsythe-Iversen (DFI) medium, and isolates were identified with API 20E. Ent. sakazakii was isolated from three products. Ent. sakazakii isolates were genotyped by RAPD-PCR using two random primers, and their banding patterns were compared.

• Archives of Pharmacal Research
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• v.27 no.2
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• pp.164-168
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• 2004

The chromatographic separation of the MeOH extract of the aerial parts of Solidago virga-aurea var. gigantea $M_{IQ}$ . (Compositae) led to the isolation of six terpenoids and four phenolic compounds, trans-phytol (1), ent-germacra-4(15),5,10(14 )-trien-1$\alpha$-ol (2), $\beta$-amyrin acetate (3), ent-germacra-4(15),5,10(14)-trien-1$\beta$-ol (4), $\beta$-dictyopterol (5), oleanolic acid (6), kaempferol (7), kaempferol-3-O-rutinoside (8), methyl 3,5-di-O-caffeoyl quinate (9), and 3,5-di-O-caffeoyl quinic acid (10). Their structures were established by chemical and spectroscopic methods. Compounds 4, 5, and 10 showed moderate cytotoxicity against five cultured human tumor cell lines in vitro with its E $D_{50}$ values ranging from 1.52∼18.57 $\mu\textrm{g}$/mL.L.

• Journal of the Korean Society for information Management
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• v.10 no.2
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• pp.87-109
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• 1993

Thls study attempts to determ~ne the c~tedness of a scient~fic research paper wr~tten/published In Korea, one of the scient~fically per~phrral countries and the citednes ot a Korean sc~entist In mathematlc and chemistry. It was found that there is a neglig~ble proportion of c~tatlons In papers by fore~gn scientists to scient~fic l~terature from Korean and Korean sc~ent~sts. Thus, it can be true that Korean sclence or sc~ent~sts make a relatively small contr~but~on to world science: however it 1s also true that the per~pehral journal has ~ t s own scientif~c value follocal area.