임상검체에서의 Haemophilus aphrophilus 분리 5예

김태숙,정윤섭,이삼열,설준희,양성익,이의웅 대한미생물학회 1985 大韓微生物學會誌 Vol.20 No.1

Haemophilus aphrophilus is a fastidious gram-negative bacillus found in mouth of normal individuals. Though H. aphrophilus infection is quite rate, it includes such serious ones as endocarditis and brain abscess. The authom isolated H. aphrophilus from five patients with the diagnosis of lung abscess, conjunctivitis, brain abscess and facial masticator space abscaa Two of the patients died. Three of the patients also yielded other species of bacteria from the same specimens. One of the isolate was intermediately susceptible to amikacin and resistant to tobramycin, indicating the necessity of a routine susceptibility test in order to select the proper antimicrobial agents. Since FS. Aphrophilus can be diffetentiated from other similar organisms by morphological and biochemical chamcteristics, one should determie the possibility of this organisrn when faptidious gram-negative bacilli are isolated from blood or from sites adjacent to upper respiratory tract.

The roles of surface chemistry and topography in the strength and rate of osseointegration of titanium implants in bone

Sul, Young-Taeg,Kang, Byung-Soo,Johansson, Carina,Um, Heung-Sik,Park, Chan-Jin,Albrektsson, Tomas Wiley Subscription Services, Inc., A Wiley Company 2009 Journal of biomedical materials research. Part A Vol.a89 No.4

<P>The present study investigated the effects of surface chemistry and topography on the strength and rate of osseointegration of titanium implants in bone. Three groups of implants were compared: (1) machine-turned implants (turned implants), (2) machine-turned and aluminum oxide-blasted implants (blasted implants), and (3) implants that were machine-turned, aluminum oxide-blasted, and processed with the micro-arc oxidation method (Mg implants). Three and six weeks after implant insertion in rabbit tibiae, the implant osseointegration strength and rate were evaluated. Surface chemistry revealed characteristic differences of nine at.% Mg for Mg implants and 11 at.% Al for blasted implants. In terms of surface roughness, there was no difference between Mg implants and blasted implants in developed surface ratio (Sdr; p = 0.69) or summit density (Sds; p = 0.96), but Mg implants had a significantly lower arithmetic average height deviation (Sa) value than blasted implants (p = 0.007). At both 3 and 6 weeks, Mg implants demonstrated significantly higher osseointegration strength compared with turned (p = 0.0001, p = 0.0001) and blasted (p = 0.0001, p = 0.035) implants, whereas blasted implants showed significantly higher osseointegration than turned implants at 6 weeks (p = 0.02) but not at 3 weeks (p = 0.199). The present results not only support the hypothesis that biochemical bonding facilitates rapid and strong integration of implants in bone, but also provide evidence for biochemical bonding theory previously proposed by Sul. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res, 2009</P>

Color Change in Mixed Zinc Sulfide Composite Displays due to a Biased AC Electric Field

Kim Taehun,Kim Ha Sul 한국물리학회 2023 새물리 Vol.73 No.8

In this study, we developed two types of electroluminescent (EL) devices. One type was made solely of ZnS:(Cu, Al, Mn) composite and the other type was a mixture of the ZnS:(Cu, Al, Mn) and ZnS:(Cu, Cl) composites. The light-emitting device was fabricated by mixing ZnS phosphor and polydimethylsiloxane between two indium tin oxide glasses. When the ZnS:(Cu, Cl) composites were added to the ZnS:(Cu, Al, Mn) composites, the intermixed EL device emitted brighter light than the device fabricated with only the ZnS:(Cu, Al, Mn) composite at the same bias and frequency. The International Commission on Illumination color coordinates of the EL devices produced with only the ZnS:(Cu, Al, Mn) composites and with the intermixed ZnS:(Cu, Al, Mn) phosphors and ZnS:(Cu, Cl) composites were (0.30, 0.40) and (0.24, 0.42), respectively, at 100 Hz. These values changed to (0.28, 0.31) and (0.23, 0.32), respectively, at 500 Hz. We believe that the ZnS EL device composed of the two mixed composites could be utilized as an illumination light source for large-area displays, which, in turn, require active color expression.

Mechanistic-organic Structure and Entrepreneurial Strategy of Large Restaurant Franchisors from the Perspectives of Franchisees

Sul, Hoon-Ku 동북아시아문화학회 2008 동북아 문화연구 Vol.1 No.16

가맹본사와 가맹점주 사이의 관계는 여러 국지적인 시장에서 상당히 역동적이며 적극적이다. 선행연구에서 Daft (1982)는 기계적 조직 구조와 유기적 조직 구조가 하나의 조직 속에 상존할 수 없다고 주장하고 있다. 그러나 Sul(2002)과 Sul & Khan(2006)에 의하면, 가맹을 하고 있는 미국의 레스토랑 가맹점주를 대상으로 한 연구에서 프랜차이즈 본사와 점주들 간에 기계적 조직 구조와 유기적 조직구조를 함께 상존시킨다고 가맹점주들이 인식하고 있다고 보고한바 있다. 가맹본사와 가맹점주 간에 상호 의존적 공생관계에 있어 여러 가지 접촉 채널을 통해 서로를 인식하게 되는것이 레스토랑 가맹 조직체계 이다. 창업전략은 가맹사업 분야에서 가장 중요한 전략으로 인식되어 왔다. 미국의 대규모 레스토랑 가맹점주를 대상으로 한 본 연구에서 레스토랑 가맹점주들은 이러한 가맹본사의 창업전략차원을 뚜렷한 창업 전략으로 지각하고 있었다. 이에 근거하여 본 연구는 미국의 대규모 레스토랑 기업을 대상으로 하여 가맹본사가 형성하는 기계적-유기적 조직 구조와 창업 전략에 대한 가맹점주의 인식을 조사한 것이다. 본 연구에서 레스토랑 가맹점 입장에서 본 대규모 가맹본사의 창업전략의 특성인 사전 행동성, 혁신성, 모험성, 경쟁적 공격성, 자치성과 같은 측정 도구를 이용했으며, 기계적 유기적 조직의 특성인 의사결정성향, 환경적응성향, 정식화성향을 측정도구로 사용하였다. 다중회기 분석을 이용하여 레스토랑 가맹점 입장에서 본 대규모 가맹본사의 유기적 조직과 창업전략의 관계를 측정하였다. 분석결과 가맹점의 시각에서 대규모 레스토랑 가맹점 본사의 창업전략은 유기적인 가맹 조직구조와 상관관계가 있음이 확인 되었다. 그러므로 본 연구는 대규모 유명 레스토랑 가맹점들은 가맹본사의 창업전략을 통해 가맹 사업의 유기적 조직과 함께하고 있다는 것을 증명해 보이고 있다. 이는 가맹 본사가 대규모 가맹 사업 점포를 가지기 위해서는 창업 전략과 유기적 가맹 조직 구조를 가져야 한다는 것으로 간단히 설명 할 수 있는 것이다.

Identification and isolation of canine parvovirus type 2c in faeces of korean dogs

Byeong Sul Kang(Byeong Sul Kang),In-Ohk Ouh(In-Ohk Ouh),Min-Su Cho(Min-Su Cho),Ju-Yeon Lee(Ju-Yeon Lee),Seyeon Park(Seyeon Park),Soo dong Cho(Soo dong Cho),In-Soo Cho(In-Soo Cho),Jae Young Song(Jae Yo 한국예방수의학회 2017 한국예방수의학회 학술대회자료집 Vol.2017 No.-

A Relationship Study in Environmental Uncertainty, Entrepreneurial Strategy, and Financial Performance of the Restaurant Franchisors by the Franchisees' Perspectives

Sul Hoon-Ku(설훈구) 동북아시아문화학회 2009 동북아시아문화학회 국제학술대회 발표자료집 Vol.2009 No.5월

Spatial gradient in value representation along the medial prefrontal cortex reflects individual differences in prosociality

Sul, Sunhae,Tobler, Philippe N.,Hein, Grit,Leiberg, Susanne,Jung, Daehyun,Fehr, Ernst,Kim, Hackjin National Academy of Sciences 2015 PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF Vol.112 No.25

<P><B>Significance</B></P><P>How do selfish and prosocial brains function differently with regard to valuing the welfare of others? The present study addresses this question by combining neuroimaging, computational modeling, and an instrumental conditioning paradigm. Contrary to the conventional notion of the dorsal medial prefrontal cortex (MPFC) implicated in mentalization, we found that it was selfish individuals who showed greater spatial segregation between ventral and dorsal MPFC, which encoded self- and other-regarding values, respectively. Prosocial individuals, on the other hand, were characterized by overlapping self–other representation in the ventral MPFC and by stronger functional coupling between MPFC and striatum while representing and updating the value of other-regarding choices. These findings provide rigorous scientific evidence of neural markers reflecting individual differences in human prosociality.</P><P>Despite the importance of valuing another person’s welfare for prosocial behavior, currently we have only a limited understanding of how these values are represented in the brain and, more importantly, how they give rise to individual variability in prosociality. In the present study, participants underwent functional magnetic resonance imaging while performing a prosocial learning task in which they could choose to benefit themselves and/or another person. Choice behavior indicated that participants valued the welfare of another person, although less so than they valued their own welfare. Neural data revealed a spatial gradient in activity within the medial prefrontal cortex (MPFC), such that ventral parts predominantly represented self-regarding values and dorsal parts predominantly represented other-regarding values. Importantly, compared with selfish individuals, prosocial individuals showed a more gradual transition from self-regarding to other-regarding value signals in the MPFC and stronger MPFC–striatum coupling when they made choices for another person rather than for themselves. The present study provides evidence of neural markers reflecting individual differences in human prosociality.</P>

[P140] Psoriasis, vitiligo and crohn`s disease co-existing in a single patient: a variant type of multiple autoimmune syndrome?

( Sul Hee Lee ),( Seung Min Lee ),( Ga Hee Jung ),( Moon Kyun Cho ),( Sung Yul Lee ),( Young Lip Park ) 대한피부과학회 2017 대한피부과학회 학술발표대회집 Vol.69 No.1

Multiple autoimmune syndrome (MAS) is a rare condition, in which at least three well-defined autoimmune diseases co-occur in a single patient. Although the pathogenesis of MAS remains poorly understood, genetic, immunological, hormonal, and environmental factors may all play a role. Although three classic subtypes of MAS are well known, several cases that could not be placed into any of these three categories have recently been reported. To the best of our knowledge, the co-existence of psoriasis, vitiligo, and Crohn`s disease has been reported in only one patient, who had a total of five autoimmune diseases (alopecia areata and oral lichen planus in addition to the three conditions mentioned). We herein describe a rare case of MAS presenting with psoriasis, vitiligo, and Crohn`s disease, and suggest that tumor necrosis factor-α may be associated with the pathogenesis of all three conditions.

Isolation and Identification of Phytochemical Constituents from Taraxacum coreanum

( Sul Lim Lee ),( Saem Han ),( Hye Min Kim ),( Jeong Min Lee ),( So Youn Mok ),( Sang Hyun Lee ) 한국응용생명화학회 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.1

Phytochemical constituents were isolated from the aerial parts of Taraxacum coreanum (Asteraceae) by repeated column chromatography and prep-HPLC. Their structures were identified as β-sitosterol (1), daucosterol (2), taraxasteryl acetate (3), chrysoeriol (4), diosmetin (5), luteolin (6), luteolin-7-O-glucoside (7), esculetin (8), and 5-hydroxypyrrolidin-2-one (9) by the interpretation of spectroscopic analyses including MS, 1H-, and 13C-NMR. This is the first report on the isolation of compounds 1-9 from T. coreanum. Among the compounds, 5 and 9 were isolated for the first time from Taraxacum.

Orientalism in America during the Latter Half of the Nineteenth Century : Portrayals of Marriage Guides

SUL, Heasim Asian Center Women's Studies Korean Women's Instit 2002 Asian Journal of Women's Studies(AJWS) Vol.8 No.2

This study challenges Edward Said and examines the nature of America's Orientalism, focusing on marriage guides during the latter half of the nineteenth century. Three marriage guides that represent the three modalities of this period-the medical, the religious, and the pseudo-scientific-reveal that American Orientalism portrayed Europe as well as the Arabs, Islam, the Africans, and the American Indians as the others. Rendering others in these marriage guides took the form of bestowing unique but distorted types of femininity upon the Orient and Europe. In particular, physical deformities, abnormalities in women's sexual organs, the moral corruption of women, and influences on woman's bodies that hindered the preservation of pure American race, were emphasized to signify the characteristics of the Orient. American Orientalism determined the characteristics of American women as well as those of the Orient, justifying the inferiority of both. The examination of marriage guides reveals that American Orientalism was neither a mere extension of European orientalism, nor a product of American Zionism. It was rather a product of the formation of American identity, whereby non-mainstream persons had to be first defined as other, so as to define the mainstream.