• Title/Summary/Keyword: Morphological examination

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Morphological Re-examination of Three Goniodoma Species in Korean Coastal Waters

  • Shin, Eun-Young;Yeo, Hwan-Goo;Park, Jong-Gyu
    • Korean Journal of Environmental Biology
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    • v.22 no.2
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    • pp.273-278
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    • 2004
  • A taxonomic survey of the dinoflagellate family, Triadiniaceae Dodge was conducted on 17 locations off the coast of Korea. Three species of Goniodoma collected from the coast of Korea: Goniodoma orientale Lindemann, G. polyedricum (Pouchet) Jorgensen, and G. sphaericum Murray et Whiting.

Application of Creativity Techniques to New Product Development (신제품개발에 있어서 창조성기법의 활용에 관한 연구)

  • 박영택;김성대
    • Journal of Korean Society for Quality Management
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    • v.26 no.4
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    • pp.202-218
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    • 1998
  • It is well-known that leading firms are more innovative than others, with far more sales from new products. This paper suggests that what kinds of creatively techniques can be a, pp.ied to new product development process for the purpose of commercial success. Both divergent and convergent techniques are considered at each stage of new product development process. Some typical creativity techniques such as boundary examination, bug list, manipulative verbs, morphological analysis, SCAMPER, and TRIZ are explained with case examples.

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Morphological Re-examination of Four Taxa of Genus Ceratium Schrank in Korean Coastal Waters

  • Yeo, Hwan-Goo;Shin, Eun-Young;Park, Jong-Gyu
    • Korean Journal of Environmental Biology
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    • v.26 no.3
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    • pp.177-182
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    • 2008
  • A taxonomic survey of the dinoflagellate genus Ceratium Schrank was conducted on 17 locations off the coast of Korea. A total of sixteen species and four varieties have been collected, of which Ceratium arcticum, C. longirostrum, C. praelongum, C. tripos var. ponticum are new records for Korea. Theses three species and one variety are re-examined morphologically in this study.

Time Course Development of Airway Remodeling in Mouse Chronic Asthma Model

  • Oh, Se-woong;Park, Hae-sim;Kim, Dae-yong
    • Proceedings of the Korean Society of Veterinary Pathology Conference
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    • 2003.10a
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    • pp.7-7
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    • 2003
  • Histological examination of biopsy or postmortem lung tissue from patients with asthma usually reveals thickened airway walls. This change is called airway remodeling, which is characterized by airway eosinophilia, hyperplasia of goblet cells and smooth muscle, and subepithelial fibrosis [1,2]. In this study, we investigated the time-course functional, morphological, biochemical changes of remodeling in a ovalbumin (OVA)-induced murine chronic asthma model. (omitted)

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Screening and Isolation of the Cell Differentiation Inducers from Medicinal Plants (I) (생약으로부터 세포분화유도물질의 검색 및 분리 및 분리 (I))

  • Park, Eun-Jung;Kim, Jin-Woong
    • Korean Journal of Pharmacognosy
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    • v.28 no.4
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    • pp.225-232
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    • 1997
  • 300 extracts derived from 100 plants were tested for their potential to induce HL-60 cell differentiation using NBT assay and NSE/SE staining methods. Morphological changes from suspended to adherent state of the cells were also observed by microscopic examination. In result, 55 extracts induced cell differentiation into monocyte/macrophage lineage in the NBT and the NSE assay.

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Occurrence in Korea of Rust Disease on Tilia mandshurica Caused by Pucciniastrum tiliae

  • Jae Sung Lee;Ji Hyun Park;Young Joon Choi;Hyeon Dong Shin
    • The Korean Journal of Mycology
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    • v.51 no.1
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    • pp.1-6
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    • 2023
  • Tilia mandshurica trees with rust symptoms have consistently been noticed during disease surveys in Korea since 2006. Based on the morphological examination and molecular sequence analysis of the internal transcribed spacer and large subunit of ribosomal DNA, Pucciniastrum tiliae was identified as the causal fungus of rust disease. This is the first report of P. tiliae infection on T. mandshurica in Korea.

Ultrasound and clinical findings in the metacarpophalangeal joint assessment of show jumping horses in training

  • Yamada, Ana Lucia M.;Pinheiro, Marcelo;Marsiglia, Marilia F.;Hagen, Stefano Carlo F.;Baccarin, Raquel Yvonne A.;da Silva, Luis Claudio L.C.
    • Journal of Veterinary Science
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    • v.21 no.3
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    • pp.21.1-21.14
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    • 2020
  • Background: Physical exercise is known to cause significant joint changes. Thus, monitoring joint behavior of athletic horses is essential in early disorders recognition, allowing the proper management. Objectives: The aims of this study were to determine the morphological patterns, physical examination characteristics and ultrasound findings of show jumping horses in training and to establish a score-based examination model for physical and ultrasound follow-ups of metacarpophalangeal joint changes in these animals. Methods: A total of 52 metacarpophalangeal joints from 26 horses who were initially in the taming stage were evaluated, and the horses' athletic progression was monitored. The horses were evaluated by a physical examination and by B-mode and Doppler-mode ultrasound examinations, starting at time zero (T0), which occurred concomitantly with the beginning of training, and every 3 months thereafter for a follow-up period of 18 months. Results: The standardized examination model revealed an increase in the maximum joint flexion angles and higher scores on the physical and ultrasound examinations after scoring was performed by predefined assessment tools, especially between 3 and 6 months of evaluation, which was immediately after the horses started more intense training. The lameness score and the ultrasound examination score were slightly higher at the end of the study. Conclusions: The observed results were probably caused by the implementation of a training regimen and joint adaptation to physical conditioning. The joints most likely undergo a pre-osteoarthritic period due to work overload, which can manifest in a consistent or adaptive manner, as observed during this study. Thus, continuous monitoring of young athlete horses by physical and ultrasound examinations that can be scored is essential.

Morphological Traits of Trisomic Plant in Durum Wheat (듀럼밀 3염색체 식물의 형태적 특성)

  • 오세관
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.42 no.4
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    • pp.392-402
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    • 1997
  • The morphological traits of different types of primary trisomics(2n=28+1) in durum wheat, Triticum durum var. hordeiforme(2n=28 AABB) were compared with disomics (2n=28) through the examination of reciprocal gene action on the extra chromosomes. However it was not easy to distinguish morphologically the trisomies containing A genome from those containing B genome. These results suggested that the chromosomal location of the major genes for some morphological traits exists on homoeologous chromosome. It is important that these results revealed the homoeology and linkage groups of both A and B genomes in durum wheat. These primary trisomies will be valuable materials for the trisomic analysis and genetic mapping on the chromosome of both A and B genomes in durum wheat. Furthermore, it must be useful for the evolutionary study of Triticum durum(AABB) and Triticum squarrosa(DD) by way of the ancester species of Triticum aesitivum(AABBDD).

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Morphological Examination of Zostera asiatica Miki (Zosteraceae) from Various Habitats (서식지에 따른 왕거머리말(Zostera asiatica Miki, Zosteraceae)의 형태적 특성)

  • 이상용;권천중;김태진;서영배;최청일
    • Korean Journal of Environmental Biology
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    • v.17 no.4
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    • pp.503-512
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    • 1999
  • The morphological variations and habitat environment of the Zostera asiatica Miki (Zosteraceae) were examined in the waters off the eastern coast of Korea and Akkeshi Bay of Japan. In this study, we report new habitat of Z. asiatica along the eastern coast of south Korea; Gonghunjin, Donghori, Youngdong and Chilpo. Z. asiatica is found at the depth of 8∼15 m in these areas. However, Z. asiatica grows at the depth of 3 m in Akkeshi Bay of Japan. The sediment of habitats in the eastern coast of Korea were principally composed of sand. The stems were 64.0∼75.7 cm long in mature plants with flowering shoots and the leaves were 11.0∼15.0 mm wide for Korean populations. Plants from Akkeshi Bay of Japan had stems of 187.0∼234.0 cm in length. The difference in size are considered to be due to the depth of habitats. In spite of the significant morphological difference between Korea and Japan population of Z. asiatica, there was no difference in ITS sequences.

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Morphological Characteristics, Distribution and Taxonomic Consideration of the Arnebia euchroma and A. guttata (신강자초(新疆紫草)와 내몽자초(內蒙紫草)의 형태, 분포 및 분류학적 검토)

  • Song, Jun-Ho;Choi, Goya;Yang, Sungyu;Moon, Byeong Cheol
    • The Korea Journal of Herbology
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    • v.34 no.6
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    • pp.63-70
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    • 2019
  • Objective : Arnebiae Radix, the roots of Arnebia euchroma (Royle) Johnst. or A. guttata Bunge, is a well-known traditional herbal medicine in East Asia. In the Korean Pharmacopoeia, three authentic species, including two Arnebia and Lithospermum erythrorhizon Sieb. et Zucc. have recognized as a Lithospermi Radix. But, the morphological and taxonomic information of two authentic Arnebia species lacks date since their distribution and difficulty of accessing the natural habitats. Methods : A full description of the external morphological characteristics of vegetative and reproductive organs in the original plants was carried out using digital calipers and stereoscope. For providing their taxonomic and nomenclatural synonyms, we reviewed various plant checklists and taxonomic literature. Results : This study provides taxonomic information of A. euchroma and A. guttata based on a morphological examination of authentic plant individuals and field observations. Detailed descriptions of the two Arnebia species, major quantitative and qualitative characteristics, nomenclatural reviews, distribution maps, and lists of voucher specimens examined are provided. The shape of leaves, root length, stem number, calyx length and pubescence as well as corolla color were useful characteristics for identification. Moreover, we confirmed that A. euchroma and A. guttata are clearly heterostylous species. Conclusion : Our research provides valuable basic information that could be used as quality control for distinguishing between Arnebiae Radix and its adulterants. These results will help in the understanding of authentic plants and also provide the verified materials and voucher information.