• 제목/요약/키워드: Morphological features

Search Result 826, Processing Time 0.029 seconds

Dermatophytosis by Trichophyton rubrum and T raubitschekii in dogs (Trichophyton rubrum 및 Trichophyton raubitschekii에 의한 개 피부사상균증에 관한 연구)

  • Choi, Won-pil
    • Korean Journal of Veterinary Research
    • /
    • v.38 no.4
    • /
    • pp.823-828
    • /
    • 1998
  • This study was carried out to determine the causative agent and the clinical features of dermatophytosis occurred in 3 dogs from Tae-gu, Korea between 1996 and 1997. Specimens of hair and scale, collected from skin lesions were inoculated on potato dextrose agar and mycobiotic agar supplemented with thiamine and inositol. The agar plates were incubated at $25^{\circ}C$ for 2 weeks. Growing fungi isolated were identified by the morphological and growth characterization on bromocresol purple-milk solids-glucose medium, Christensen urea broth and trichophyton media, and by hair perforation tests. Skin lesions were observed in legs, abdomen, ears, face and head with alopecia of various sizes accompanied by itching and/or inflammation. The causative agent of dermatophytosis in the 3 dogs was identified as Microsprum gypseum and Trichophyton rubrum (mixed infection, dog 1), T rubrum (dog 2) and T raubitschekii (dog 3). The dermatophytosis by T rubrum and T raubitschekii was first found on animals in Korea.

  • PDF

Surface photometry and Structural properties of nearby dwarf galaxies

  • Seo, Mira;Ann, Hong Bae
    • The Bulletin of The Korean Astronomical Society
    • /
    • v.40 no.1
    • /
    • pp.74.3-74.3
    • /
    • 2015
  • We present 2D- photometric decompositions of ~1,200 nearby dwarf galaxies. Our representative sample is derived from 'A catalog of Visually classified galaxies in the Local Universe'(Ann, Seo and Ha APJS,,,2015) of which galaxy morphological types are determined by visual inspection of color images using the Sloan Digital Sky Survey data release 7. In this catalog, dwarf galaxies were divided into 5 subtypes : dS0, dE, dSph, dEbc, dEblue with distinction of the presence of nucleation in dE, dSph, and dS0. The dSph types are less brighter than other types, and galaxies with nuclei are slightly brighter than those with no nuclei in the same types. Sersic index n have a range 1~1.5, and $dE_{un}$ and $dSph_{un}$ galaxies have n less than 1, and $dSph_n$ galaxies have largest values. We performed two-dimensional decomposition of galaxies using GALFIT, and analyzed their structural components, and residual features which are seen in the residual image.

  • PDF

Esthetic Rehabilitation of Anterior Dentition by All Ceramic Crowns Using IPS e.max CAD : A Case of Tetracycline Discoloration (전치부 전부도재관을 이용한 테트라싸이클린 착색의 심미보철 회복 증례 (IPS e.max CAD 블록의 이용))

  • Kim, Jae-Hong;Cho, Young-kyu;Kim, Hae-Young
    • Journal of dental hygiene science
    • /
    • v.11 no.4
    • /
    • pp.299-303
    • /
    • 2011
  • The purpose of this case report was to present an example of an esthetic and functional rehabilitation of anterior teeth with tetracycline discoloration and minor morphological abnormality of a 39-year old female. A chairside computer-aided design/computer-aided manufacturing (CAD/CAM) system with CEREC AC was applied for the prosthetic procedure and all ceramic crowns made with lithum disilicate (IPS e.max CAD) restored the esthetic and functional features of sixteen anterior teeth successfully.

Hierarchical 3D Sgmentation of Image Sequence Using Motion Information Based on Mathematical Morphology (수리 형태학 기반의 움직임 정보를 이용한 연속영상의 계층적 3차원 분할)

  • 여영준;송근원;박영식;김기석;하영호
    • Journal of the Korean Institute of Telematics and Electronics S
    • /
    • v.34S no.7
    • /
    • pp.78-88
    • /
    • 1997
  • A three dimensional-two spatical dimensions plus time-image segmentation is widely used in a very low bit rate image sequence coding because it can solve the region correspondence problem. Mathematical morphology is a very efficient tool for the segmentation because it deals well with geometric features such as size, shape, contrast and connectivity. But if the motion in the image sequence is large in time axis, the conventional 3D morphological segmentation algorithm have difficulty in solving region correspondence problem. To alleviate this problem, we propose the hierarchical image sequence segmentation algorithm that uses the region motion information. Since the motion of a region in previous level affects that in current level uses the previous motion information to increase region correspondence. Simulation result shows improved performance for sequence frames with large motion.

  • PDF

Hypnea esperi (Cystocloniaceae, Gigartinales): a newly recorded species of marine algae in Korea (한국산 미기록 해조 잔가지가시우무 (돌가사리목, 열매가지과))

  • KANG, Pil Joon;NAM, Ki Wan
    • Journal of Fisheries and Marine Sciences Education
    • /
    • v.29 no.3
    • /
    • pp.952-957
    • /
    • 2017
  • In the course of survey of marine algal flora in Korea, a red algal species was collected from Pohang located in the eastern coast of Korea. This shares features of Hypnea, and is characterized by more or less percurrent axis and numerous and short branchlets densely covering axis and branches with basal constrictions, and absence of lenticular thickenings in medullary cell walls. In a phylogenetic tree based on rbcL sequences, this species nests in the same clade as Hypnea esperi. Genetic distance between this Korean entity and H. esperi was in intraspecific range as 0.6%. This alga is identified as Hypnea esperi based on the morphological and molecular data. This is the first record of H. esperi in Korea.

Ontological Analysis on the Phenomenon of Contemporary Architecture - Focused on the Avant-garde in the End of the 20th Century - (현대건축 현상의 존재론적 해석 - 20세기말 아방가르드를 중심으로 -)

  • Byun, Gye-Sung
    • Journal of architectural history
    • /
    • v.14 no.2 s.42
    • /
    • pp.21-40
    • /
    • 2005
  • The purpose of this study was to analyze the features of the avant-garde architecture in the end of the 20th Century based on the ontology as a metalanguage. In view of the results so for achieved, it is possible to say that the thought of becoming, topology, rhizome thought and the Deleuze's concepts of the fold and the event as ever-changing and evolving at any given time are found in the avant-garde architecture, and the introduction of ontological thought into architectural design encourage hopes for a more natural and existential quality in architecture. However, the avant-garde architecture in the end of the 20th century disclosed the limitation in the architectural expression of ontological thought due to the lack of fully understand on ontology. In conclusion, the ontological approach in architecture offers a new morphological methodology and a new way of programming considering the existential aspect of space through the bricoleur's means leaving the ontological meaning of architecture itself.

  • PDF

A Study on Formation of Void Space by Geometric Method and Environment-friendly Characteristics in Contemporary Housing (현대주거의 기하조작에 의한 보이드 공간의 생성과 친환경적 특성에 관한 연구)

  • Lee, Dong-Ki
    • Journal of the Korean housing association
    • /
    • v.21 no.6
    • /
    • pp.131-141
    • /
    • 2010
  • This study is aimed to grasp the spatial characteristics exhibited in the modern housing architecture from the aspect of a geometrical manipulation, which transforms basic geometrical shapes and persue the formative diversity, to identify and verify the various characteristics of spatial structure in modern housing architecture. In this regard, this paper analyze and identify the influences of the void spaces that are created by geometrical manipulations on housing architecture, in terms of morphological and environmental aspects. Theoretical approaches define the concept of geometrical manipulation according to the characteristics of residence and examine the spatial features of void spaces. Additionally, case studies result in the classification of void spaces that are created by geometrical manipulation. Furthermore, to understand environment-friendly characteristics of the void space, the researcher elicited the factors that can affect environment friendly housing from previous studies, and analyzed their correlation between those factors and the void spaces that are classified.

Germ Cell Apoptosis in the Testis of Transgenic Pigs

  • Chung, Hak-Jae;Kim, Bong-Ki;Ko, Yeoung-Gyu;Woo, Jei-Hyun;Kim, Jeom-Soon;Jung, Jin-Kwan;Chang, Won-Kyong
    • Proceedings of the KSAR Conference
    • /
    • 2004.06a
    • /
    • pp.233-233
    • /
    • 2004
  • PURPOSE: Gene expression and apoptosis in testicular germ cells has been demonstrated in many transgenic animals. However, little is known about the transgenic pig and rates of apoptosis during spermatogenesis. METHODS : Morphological and biochemical features of apoptosis reported in other species were used to confirm that the TdT-mediated dUTP Nick end labeling (TUNEL) assay is an acceptable mothos for idendtification and quantification of apoptotic transgenic germ cells in histological tissue section from transgenic pig testis. (omitted)

  • PDF

First Report of Gray Mold Disease of Sponge Gourd (Luffa cylindrica) Caused by Botrytis cinerea in Korea

  • Aktaruzzaman, Md.;Afroz, Tania;Kim, Byung-Sup;Shin, Hyeon-Dong
    • Research in Plant Disease
    • /
    • v.22 no.2
    • /
    • pp.107-110
    • /
    • 2016
  • In October 2014, an occurrence of gray mold was observed on young fruits of sponge gourd (Luffa cylindrica) in Sachunmun, Gangneung, South Korea. Symptoms included abundant mycelia growth with gray conidia on young fruits and finally rotting the fruits. The fungus was isolated from symptomatic fruits and its pathogenicity was confirmed. Based on the morphological features and sequence analysis of ITS-5.8S rDNA, G3PDH, HSP60, and RPB2 genes, the pathogen was identified as Botrytis cinerea Pers. This is the first report of gray mold caused by B. cinerea on L. cylindrica in Korea.

Recurrent Plasmacytoid Myoepithelioma of the Lung - A case Report - (재발성 형질세포양 세포성 폐 근상피종 -1례 보고-)

  • 박충규;심영목
    • Journal of Chest Surgery
    • /
    • v.31 no.6
    • /
    • pp.638-641
    • /
    • 1998
  • A recurrent myoepithelioma of the lung in a 36-year-old man is reported. The neoplasm showed histologic features identical to those described in myoepitheliomas of major and minor salivary glands on the basis of Dardick's morphological classification of Myoepitheliomas. He was treated totally with surgical en-bloc resection including the chest wall. The tumor was found to be well encapsulated, and it appeared to be mainly composed of plasmacytoid cells and clear cells with occasional microcystic spaces in a solid growth form by light microscopy. Immunocytochemical, ultrastructural and flow-cytometrical studies supported myoepithelioma differentiation.

  • PDF