• Title/Summary/Keyword: Morphological change

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Effect of He-Ne laser intravascular irradiation by live blood analysis (생혈구분석을 통한 He-Ne laser 정맥혈관내 조사의 효과)

  • Kong, Min-Joon;Ahn, Jong-Suk;Yoo, Ho-Ryong;Kim, Yong-Jin;Bae, Kyong-Il;Kim, Yoon-Sik;Seol, In-Chan
    • The Journal of Internal Korean Medicine
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    • v.21 no.5
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    • pp.705-713
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    • 2000
  • Objectives : The purpose of this study was to investigate the effect of Intravascular Laser Irradiation of Blood(ILlB) by the live blood analysis. Methods : We had analysed the changing forms of the live blood samples with Ultra Darkfield Microscope before and after Intravascular Laser Irradiation of Blood. Results : 1. Somatid did not showed significant change. 2. In the rouleau of red blood cells was decreased significantly. 3. In the morphological change of red blood cells, Burr cell, Ovalocyte and Poikilocyte were decreased significantly, but Acanthocyte and Target cell were increased significantly. 4. In the abnormal matters in plasma, the Cholesterol cristal did not showed significant change, but the Aggregation of platelet, Lipids, Spicule, Leucocyte, Uric acid cristal did showed a little significant decrease. Conclusion : These findings suggest that live blood analysis is useful to judge the effect of treatment and diagnosis in oriental medicine, and with the effect of Intravascular Laser Irradiation of Blood, it had showed significant effect on rouleau of red blood cells, morphological change of red blood cells and abnormal matters in plasma.

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Change of Fish Habitat in a Downstream Reach of a Stream Due to Dam Construction (댐 건설에 따른 하류 하도 어류 서식처 변화 분석)

  • Kim, Seung Ki;Choi, Sung-Uk
    • Ecology and Resilient Infrastructure
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    • v.1 no.2
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    • pp.61-67
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    • 2014
  • Dam construction changes flow regime and stream morphology in the downstream reach. These affect the ecosystem of downstream reach. This study provides the assessment of the impact of dam construction on the downstream fish habitat. For this, physical habitat simulations are carried out. The quasi-steady model is used for hydraulic simulation, The hydraulic model used in the present study is capable of simulating the morphological change due to sediment transport. The change of the fish habitat condition is investigated using the flow scenarios before and after the dam construction. Simulation results indicate that the habitat suitability decreases frequently due to hydropeaking after dam construction. In addition, erosion is expected to occur in a reach downstream of dam. This is a long term effect due to the shut-down of sediment supply from the upstream reach.

An Analysis on the Morphological Relationship of Hair Styles with Changes in Necklines and Collars in 20th Century Fashion

  • Kim, Hyoju;Bae, Soojeong
    • Journal of Fashion Business
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    • v.19 no.3
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    • pp.1-13
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    • 2015
  • The purpose of this research is to analyze the morphological relationship between changes hair styles and changes in necklines and collars in 20th century fashion. After selecting the representative plate by each age for this study, the neckline, collar, and formative relevancy of hair style according to it have been analyzed by measuring the neckline, collar, and the width and height item of each hair style. The results of this study show- that the width changes of necklines and collars were mostly proportional in relation to each other, but the width changes of collars and hair styles were inversely proportional. While the amplitude of necklines and collars' width change was very broad, the amplitude of some hair style's height change was very broad. Regarding width, this result had similar results of the researcher's former research, the relation according to the width of necklines, collars and hair style from 16th century to 19th century. However, regarding height, this result was different from the preceding research in that the amplitude of hair style and collars' height change was very broad between 16th and 19th centuries, but the amplitude of neckline's height change is relatively small. This means various heights of necklines appeared in the 20th century, but more various heights of collars were shown between the 16th and 19th centuries. This research hopes to be helpful by predicting trends in fashion, and to be basic resources to understand the systemic relationship of these factors.

The EST Study of the Peri-implanting Porcine Embryos (Peri-implanting 단계의 돼지배아 EST 연구)

  • Kwak, In-Seok
    • Journal of Life Science
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    • v.19 no.5
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    • pp.587-592
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    • 2009
  • A dramatic morphological change of embryos occurs at peri-implantation. Maternal and embryonic cross-talk during this period, initiated by signals from embryo(s), provides signals for maternal recognition of pregnancy and establishing and maintaining the pregnancy. However, the cellular, biochemical and genetic processes that direct embryo remodeling in mammalian species are not well studied or understood. In order to identify potential genes responsible for morphological change and cross-talk between embryo and uterus, an initial EST analysis was performed. A catalog of expressed genes (Transcriptome) from the d12 peri-implanting porcine embryos was constructed. Six clones were chosen from the initial ESTs for elucidation of their expression patterns during embryogenesis in early pregnancy. A number of these genes demonstrated unique expression profiles in a tissue, cell-type, and temporal fashion, indicating dynamic regulation of embryonic and endometrial gene expressions at different stages of pregnancy. Cross-talk between the embryo and endometrium of the pregnant uterus has provided a suitable micro-environment for the embryo's rapid and dramatic morphological changing process at the peri-implantation stage.

Application of Remote Sensing and GIS technology for monitoring coastal changes in estuary area of the Red river system, Vietnam

  • Lan, Pham Thi;Son, Tong Si;Gunasekara, Kavinda;Nhan, Nguyen Thi;Hien, La Phu
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.31 no.6_2
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    • pp.529-538
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    • 2013
  • Coastline is the most dynamic part of seascape since its shape is affected by various factors. Coastal zone is an area with immense geological, geomorphological and ecological interest. Monitoring coastal change is very important for safe navigation, coastal resource management. This paper shows a result of monitoring coastal morphological changes using Remote Sensing and GIS. Study was carried out to obtain intensity of erosion, deposition and sand bar movement in the Red River Delta. Satellite images of ALOS/AVNIR-2 and Landsat were used for the monitoring of coastal morphological changes over the period of 1975 to 2009. Band rationing and threshold technique was used for the coastline extraction. Tidal levels at the time of image acquisition varied from -0.89m to 2.87m. Therefore, coastline from another image at a different tidal level in the same year was considered to get the corrected coastline by interpolation technique. A series of points were generated along the coastal line from 1975 image and were established as reference points to see the change in later periods. The changes were measured in Euclidean distances from these reference points. Positive values represented deposition to the sea and negative values are erosion. The result showed that the Red river delta area expanded to the sea 3500m in Red river mouth, and 2873m in Thai Binh river mouth from 1975 to 2009. The erosion process occurred continuously from 1975 up to now with the average magnitude 23.77m/year from 1975 to 1989 and 7.85m/year from 2001 to 2009 in Giao Thuy area. From 1975 to 2009, total 1095.2ha of settlement area was eroded by sea. On the other hand, land expanded to the sea in 4786.24ha of mangrove and 1673.98ha of aquaculture.

Morphology and Adhesion of Campylobacter jejuni to Chicken Skin Under Varying Conditions

  • Jang, Keum-Il;Kim, Min-Gon;Ha, Sang-Do;Kim, Keun-Sung;Lee, Kyu-Ho;Chung, Duck-Hwa;Kim, Cheorl-Ho;Kim, Kwang-Yup
    • Journal of Microbiology and Biotechnology
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    • v.17 no.2
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    • pp.202-206
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    • 2007
  • The adhesion of Campylobacter jejuni to chicken skin, along with the associated morphological changes under aerobic conditions at 4, 25, and $37^{\circ}C$ and microaerobic ($O_2\;5%,\;CO_2\;10%,\;N_2\;85%$) conditions, were investigated using confocal laser scanning microscopy (CLSM), flow cytometry, and plate counting. The morphological change of C. jejuni from a spiral shape to a coccoid form or VBNC form (viable but nonculturable form) progressed rapidly under aerobic conditions at 25, 37, and $4^{\circ}C$. As regards adhesion, the C. jejuni cells were mostly located in the crevices and feather follicles of the chicken skin, where the cells in the feather follicles floated freely in the entrapped water, even after the skin was rinsed quite thoroughly. CLSM also revealed the penetration of some spiral-shaped C. jejuni cells into the chicken skin. Even after changing their shape at various temperatures, coccoid-form C. jejuni cells were still found in the crevices and feather follicles of the chicken skin.

Morphological Review of Red Blood Cells After X-ray Irradiation (방사선 조사 후 적혈구의 형태적 고찰)

  • Tae-Jeong Ji
    • Journal of the Korean Society of Radiology
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    • v.17 no.2
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    • pp.223-230
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    • 2023
  • This study attempted to concider the morphological change of red blood cells after whole body irradiation. Blood samples used red blood cells of white mice and mouse after irradiation. Transmission electron microscope observation results, Anisocytosis was observed in red blood cells 20 days after 5 Gy irradiation. Triangle and tetrapod were observed for small red blood cell types. Poikilocytosis, sickle-shaped Drepanocyte, and Acantocyte were observed in general-sized red blood cells. Schizocyte was observed in red blood cells 20 days after 7 Gy irradiation. Scanning electron microscope observation results, Dacryocyte was observed with microcytes. It was also confirmed that red blood cells were get tangled with each other. In addition, polygonal shapes and half-moon shapes were also observed. In conclusion, it is judged that the modified form of pathological study is more important than the numerical change in the study of red blood cells by radiation exposure. In conclusion, it was confirmed that modified morphological studies are more important than numerical changes in the study of red blood cells by radiation exposure.

Analysis of the morphological change and the expression of secretory leukocyte protease inhibitor (SLPI) in various cell lines after lipopolysaccharide stimulation

  • Choi, Baik-Dong;Choi, Jeong-Yoon;Jeong, Soon-Jeong;Park, Joo-Cheol;Kim, Heung-Joong;Bae, Chun-Sik;Lim, Do-Seon;Jeong, Moon-Jin
    • 한국전자현미경학회:학술대회논문집
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    • 2005.11a
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    • pp.127-129
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    • 2005
  • Bacterial lipopolysaccharide(LPS) is can stimulate the most LPS-responsive cells in the mammalian host. The macrophage response to LPS can protect the host from infection but high levels, contribute to systemic inflammatory response syndrome and destruction of host itself, The previously study, secretory leukocyte pretense inhibitor (SLPI) was known LPS-induced product of macrophage and had the function that antagonizes their LPS-induced activation of pro-inflammation signaling factors. Purpose of this study was to identify the expression of SLPI involving the infection in various cell lines including odontoblast cell line. Therefore, we conducted in vitro researches, which treated the LPS to the MDPC-23, and compared to NIH3T3, RAW264.7. To investigate the expressionof SLPI in mRNA level, the methods was used RT-PCR and western blotting for protein expression of SLPI. Moreover, we performed the scanning electron microscopic (SEM) observation for the morphological change. This work was supported by Korea Science and Engineering Foundation.

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Structural and Morphological Changes of Co Nanoparticles and Au-10at.%Pd Thin Film Studied by in Situ Heating in a Transmission Electron Microscope

  • Ji, Yoon-Beom;Park, Hyun Soon
    • Applied Microscopy
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    • v.47 no.3
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    • pp.208-213
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    • 2017
  • The microstructural changes in Co nanoparticles and an Au-10at.%Pd thin film have been investigated using an in situ heating holder with a micro-electro-mechanical system (MEMS). In Co nanoparticles, two phases (face-centered cubic and hexagonal close-packed crystal structures) were found to coexist at room temperature and microstructures at temperatures, higher than $1,000^{\circ}C$, were observed with a quick response time and significant stability. The actual temperature of each specimen was directly estimated from the changes in the lattice spacing (Bragg-peak separation). For the Au-10at.%Pd thin film, at a set temperature of $680^{\circ}C$, the actual temperature of the sample was estimated to be $1,020^{\circ}C{\pm}123^{\circ}C$. Note that the specimen temperature should be carefully evaluated because of the undesired effects, i.e., the temperature non-uniformity due to the sample design of the MEMS chip, and distortion due to thermal expansion.

Antitumoral Compound , MCH-201 , an Effector on Proliferation and Morphology of Human Breast Tumor Cell Line, MCF-7 (인체유암세포주 MCF-7의 형태변화와 증식에 영향을 주는 항암활성물질, MCH-201)

  • Kim, Hang-Sub;Kim, Se-Eun;Kim, Young-Ho;Lee, Sung-Woo;Oh, Goo-Taeg;Kim, Hwan-Mook;Lee, Jung-Joon
    • Microbiology and Biotechnology Letters
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    • v.21 no.4
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    • pp.316-321
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    • 1993
  • MCH-201 was isolated from the mycelium of Streptomyces sp. Ba16 as a potent effector on proliferation and morphology of human breast tumor cell line, MCF-7. Morphological change could be observed at concentration between 2.5${\mu}$g/ml and 250pg/ml and showed cytotoxic effect at the concentration of more than 5${\mu}$g/ml. This compound also showed inhibitory effect on DNA synthesis of hepatoma cells, Hepa 1c1c7, and strong cytotoxic effect on proliferation of human tumor cell lines, A549 and XF498.

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