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        검색결과 1,713

        334.
        2021.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Feral cats are widely considered to be leading the potential impacts on public health. This study aimed to provide estimates of vital data for feral cats relating Trap-Neuter-Return (TNR) to establish strategies effectively to manage feral cats in Pyeongtaek. Thus, this study focused on estimating feral cat population in Pyeongtaek and conducted a comparative analysis of the data for feral cats in Seoul (2013). The number of feral cats was estimated from 23,069 to 26,655 in Pyeongtaek, 2019. In relation to human population, when comparing the number of feral cats of Pyeongtaek and Seoul, it ranged from 4.57% to 5.28%, and from 1.97% to 2.55% respectively. This showed that Pyeongtaek was higher than Seoul. Fewer kittens were found in high-density areas, which the TNR project is believed to be generally effective in controlling the number of feral cats. In conclusion, in urban and rural complexes such as Pyeongtaek City, the number of feral cats compared to the population was higher than that of Seoul City, and the TNR program is believed to be somewhat effective in controlling the number of feral cats. When implementing TNR, it is necessary periodically to investigate the population and reflect them in policymaking.
        4,000원
        335.
        2021.03 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Resistance to extended-spectrum cephalosporin in Enterobacteriaceae is increasingly prevalent in South Korea. This study aims to explore the distribution of AmpC genes in Proteus mirabilis isolated from stray and hospital-admitted companion animals in South Korea. AmpC β-lactamases hold clinical significance due to its potential to facilitate antimicrobial resistance to cefoxitin, cefazolin, and most penicillins. A total of 163 bacterial isolates belonging to the Enterobacteriaceae family were collected from dogs (n = 158) and cats (n=5). Of them, 134 isolates were from hospital-admitted animals, while 29 isolates from stray animals. Boronic acid tests and antimicrobial susceptibility tests were conducted for an initial screening to detect AmpC β-lactamase resistant P. mirabilis. Gene-specific PCRs were conducted to identify the type of AmpC genes, which include six groups (MOXM, CITM, DHAM, ACCM, EBCM, and FOXM), in the resistant isolates. The boronic acid disk tests revealed 45 (27.6%) positive isolates out of 163 isolates tested. Of these 45 isolates, six were determined to harbor the EBCM gene, 13 for CITM, one for FOXM, and one for DHAM by single detection PCR. No isolates carried for ACCM or MOXM. Thus, a total of 21 out of 163 isolates (12.9%) were demonstrated to possess AmpC genes. No isolates contain more than one group of AmpC gene family. A significantly higher percentage of P. mirabilis was found to possess AmpC genes compared to past studies. Therefore, the increasing trend in antimicrobial resistance in P. mirabilis indicates a dire need to monitor antimicrobial prescription in the veterinary field.
        4,000원
        336.
        2020.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        맵시벌상과에 속하는 Testudobracon pleuralis Ashmead, 1906, Diadromus subtilicornis Gravenhorst 1829 2속 및 2종을 한국에서 처음으로 보고한다. 본 종의 형태진단, 분포, 삽화를 수록한다.
        4,000원
        337.
        2020.12 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        We report the discovery of a giant exoplanet in the microlensing event OGLE-2017-BLG-1049, with a planet―host star mass ratio of q = 9.53 ± 0.39 × 10-3 and a caustic crossing feature in Korea Microlensing Telescope Network (KMTNet) observations. The caustic crossing feature yields an angular Einstein radius of θE = 0.52 ± 0.11 mas. However, the microlens parallax is not measured because the time scale of the event, tE ≃ 29 days, is too short. Thus, we perform a Bayesian analysis to estimate physical quantities of the lens system. We fi nd that the lens system has a star with mass Mh = 0.55+0.36 -0.29 M⊙ hosting a giant planet with Mp = 5.53+3.62 -2.87 MJup, at a distance of DL = 5.67+1.11 -1.52 kpc. The projected star{planet separation is aㅗ = 3.92+1.10 -1.32 au. This means that the planet is located beyond the snow line of the host. The relative lens{source proper motion is μrel ~ 7 mas yr-1, thus the lens and source will be separated from each other within 10 years. After this, it will be possible to measure the flux of the host star with 30 meter class telescopes and to determine its mass.
        4,000원
        338.
        2020.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        충청북도농업기술원에서는 분홍색의 향기가 있고, Dendrobium kingianum에 비해 왜성종이며, 2월 하순경 개화하는 덴드로비 움 ‘리틀핑크’(D. kingianum ‘Little Pink’)를 육성하였다. 신품종 ‘리틀핑크’는 2007년 D. kingianum을 모본으로, D. kingianum var. silcockii를 부본으로 교배하였다. 종자 발아, 재배, 선발, 특성검정은 2008년부터 2015년까지 진행되었다. 생육이 좋고 꽃의 색, 모양이 우수한 계통을 선발한 후, 2016년부터 2018년까 지 3년에 걸쳐 국립종자원 신품종 심사기준으로 특성검정 결과, 우수성이 인정되어 2019년 최종 선발하여 ‘리틀핑크’로 명명하 였다. 주요 특성은 다음과 같다. 화색은 분홍색으로 Red-purple Group 72B(RHS color chart)이며, 향기가 있고 꽃잎무늬는 농담 무늬이다. 식물체 크기는 7.3cm로 대조품종 D. kingianum 23.5cm에 비해 작은 왜성종이다. 엽의 폭은 1.2cm이고, 꽃의 넓이는 2.4cm이다. 소화수는 3.7개이고 전반적으로 화분의 볼 륨감이 좋은 편이다. 꽃자루 길이는 7 .2cm로 대조품종 D. kingianum에 비해 짧다. 개화기는 2월 하순이며, 개화기간은 30일 정도이다.
        4,000원