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Asymptomatic carriage of Clostridioides difficile in pet shop puppies
Yuya Kimura(Yuya Kimura ),Satoshi Kameshima(Satoshi Kameshima ),Naoyuki Itoh(Naoyuki Itoh ) 한국예방수의학회 2023 예방수의학회지 Vol.47 No.2
Crowded pet shops can become infected with various pathogens. Although dog carriers of Clostridioides difficile tend to be asymptomatic, the toxigenic strains sometimes cause gastrointestinal symptoms in humans. The present study was conducted to determine the infection rate of C. difficile in pet shops. The feces of 137 dogs younger than one year of age, collected from four pet shops, were assessed by culture and PCR. Carriage rates of C. difficile in dogs aged ≤90, 91-180, and ≥181 day-old were 12.2% (10/82, 95% confidence interval: 6.0-21.3%), 0.0% (0/42, 95% confidence interval: 0.0-8.4%), and 7.7% (1/13, 95% confidence interval: 0.2-36.0%), respectively. Five C. difficile isolates carried genes encoding toxins A and B, while the remaining isolates contained only toxin B. However, none of the C. difficile carriers had diarrhea. These results highlight the necessity of promoting adequate hygiene precautions in pet shops to prevent infection by C. difficile.
Kimura, Fumiko,Horii, Shigeru,Arimoto, Itsuki,Doi, Toshiya,Yoshimura, Masato,Wada, Masahisa,Kimura, Tsunehisa American Chemical Society 2018 The Journal of physical chemistry A Vol.122 No.46
<P>Microcrystals of ErBa<SUB>2</SUB>Cu<SUB>4</SUB>O<SUB>8</SUB> suspended in a liquid medium were triaxially aligned by a frequency-modulated magnetic field and allowed a free rotational relaxation after the magnetic field was turned off. In situ X-ray diffraction measurements of the suspension were performed during relaxation, and the temporal change of the orientation fluctuation was monitored via broadening of the diffraction spots. The rotational diffusion constants were determined using the plot of the orientation fluctuation versus the elapsed time of rotational relaxation. The diffusion constants thus determined were in close agreement with those evaluated by the Stokes law but showed slight anisotropy, indicating that the microcrystals studied had shape anisotropy. The present method can provide a useful means for experimentally determining rotational diffusion constants of microcrystals suspended in viscous media. This paper shows that, due to the combination of the initial triaxial alignment and the subsequent monitoring of the relaxation process by means of X-ray diffraction, the diffusion constants along arbitrary crystallographic axes are determined separately.</P> [FIG OMISSION]</BR>
異文化コミュニケ?ション入門書のディスコ?ス : 「自己開示」に?する記述に着目して
Kimura Arinobu(木村有伸) 韓國外國語大學校 外國學綜合硏究센터 日本硏究所 2015 日本硏究 Vol.0 No.64
본 원고에서는 문화 비교 접근인 이문화 커뮤니케이션(ICC)론에서 문화나 문화의 차이에 대해 이야기 하는 점을 문제로 들기 위해 ICC입문서 중 「자기표출」에 관한 기술을 분석했다. 그 결과, 미국과 일본의 자기표출 정도에 관한 조사결과가 ICC입문서에서도 다뤄지고 있는 점, 그리고 그 자기표출의 차이를 설명 할 때에 문화 비교 접근이 주류였던 1990년대 이전뿐만이 아니라, 비교적 최근의 입문서에서도 문화차이를 강조하는 이항대립개념이나 인과명제를 게시하는 방법이 사용된 점을 확인했다. 이렇게 인과명제가 많이 쓰이는 것은 문화간의 차이를 강조할 뿐만이 아니라, 문화적인 고정관념을 만들어내는 것이다. 본 원고에서는 문화 차이에 대한 이러한 언설이 ICC입문서에서 반복적으로 사용되어 온 점은 학습자가 이문화를 이해하는 것을 방해해왔다고 비판했다. Although the validity of academic discourse that emphasizes cultural differences has been challenged, it has been shown that in academic arguments, this belief remains strong. Therefore, this study examines several introductions of intercultural communication that adopt a cultural comparison approach and demonstrate the continuity of such a belief. This study also analyzes the discourse regarding "self-disclosure" in these introductions. First, it demonstrates that 19 out of 34 books focus on the concept of self-disclosure. Second, it shows that the authors of these introductions often use dichotomy between two cultures and causal propositions in order to emphasize the difference of self-disclosure between Japanese and American individuals. However, since various approaches, such as these introductions, include a methodological problem (i.e., a lack of comparison), it is remarkable that hypothetical descriptions based on such scarce supporting evidence are still quoted as academic propositions.
Kimura, Hiroshi 대한설비공학회 2003 설비저널 Vol.32 No.9
"환기"는 생활용품 등으로부터의 오염물질 및 불특정 물질의 농도 저감이 가능하기 때문에 Sick House 대책으로서의 중요한 대책기술이다. 본 고에서는 집합주택을 대상으로 한 중앙공조 환기방식 및 배기 중앙 환기방식의 사례를 보여주고, 시스템의 구성기술과 오염물질의 농도 저감효과에 대해서 기술한다. 또한, 대표적인 오염물질인 포름알데히드의 건자재로 부터의 발산량은 온습도, 환기량 및 건자재의 표면적 비율 등의 영향인자에 따라 변화하므로, 필요 환기량은 이들의 영향요인을 고려하여야 한다는 것을 기술한다.
Preparation of Ru-C Nano-composite Film by MOCVD and Electrode Properties for Oxygen Gas Sensor
Kimura Teiichi,Goto Takashi 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
Ru-C nano-composite films were prepared by MOCVD, and their microstructures and their electrode properties for oxygen gas sensors were investigated. Deposited films contained Ru particles of 5-20 nm in diameter dispersed in amorphous C matrix. The AC conductivities associating to the interface charge transfer between Ru-C composite electrode and YSZ electrolyte were 100-1000 times higher than that of conventional paste-Pt electrodes. The emf values of the oxygen gas concentration cell constructed from the nano-composite electrodes and YSZ electrolyte showed the Nernstian theoretical values at low temperatures around 500 K. The response time of the concentration cell was 900 s at 500 K.