• Title/Summary/Keyword: Morphological Change

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Morphological remodeling in mouse vagina due to hormonal hypersecretion

  • Oh, Min-Gee;Kim, Sang-Hwan
    • Journal of Animal Reproduction and Biotechnology
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    • v.37 no.1
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    • pp.42-47
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    • 2022
  • This study aimed to determine whether hormonal hypersecretion could cause morphological problems in the mouse vagina and affect the ovaries and nearby extra uterine organs. All mice were synchronized to estrus before the experiment. Then human chorionic gonadotropin (hCG), progesterone, and testosterone were continuously administered for about 6 days to maintain hormone hypersecretion, and then morphological changes were analyzed, and Matrix metalloproteinases (MMPs) activity and Casp-3 expression were evaluated. As a result of the analysis, in the case of hCG, the morphological change did not show a significant difference from the vagina of normal estrus. In the case of progesterone, changes were observed in the mucosa zone and basal membrane, and it was confirmed that the activity of MMPs was increased in squamous epithelium cells. On the other hand, in the case of testosterone, overall changes in vaginal tissues were observed, and MMPs activity was increased to a very high level in all sections. The expression of Casp-3 was also the highest compared to other groups. Therefore, as a result of this study, it is thought that hormone hypersecretion affects the morphological changes of the vagina other than the ovaries and uterus and induces the activity of MMPs to cause morphological degeneration of tissues.

Inhibitory effects of honokiol on LPS and PMA-induced cellular responses of macrophages and monocytes

  • Lee, Sang-Yeol;Cho, Jae-Youl
    • BMB Reports
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    • v.42 no.9
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    • pp.574-579
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    • 2009
  • The regulatory effects of honokiol on the cellular responses of macrophages and monocytes were evaluated. Specifically, we investigated the effects of honokiol with respect to lipopolysaccharide (LPS)-induced cytotoxicity, LPS- or phorbol-12-myristate-13-acetate (PMA)-mediated morphological changes, and relevant events (FITC-dextran-induced phagocytic uptake). Honokiol blocked the LPS-induced cytotoxicity of RAW264.7 cells in a dose-dependent manner. In addition, honokiol appeared to block the production of cytotoxic cytokines such as interleukin (IL)-$1{\beta}$ and tumor necrosis factor (TNF)-$\alpha$, nitric oxide (NO), and reactive oxygen species (ROS). Moreover, honokiol strongly prevented the morphological changes in RAW 264.7 and U937 cells that were induced by LPS and PMA. The surface levels of marker proteins, which are up-regulated under the morphological changes of RAW264.7 and U937 cells, were also diminished. The data presented here strongly suggest that the honokiol modulates various cellular responses managed by macrophages and monocytes.

Codium fragile subsp. fragile (Suringar) Hariot in Tunisia: morphological data and status of knowledge

  • Cherif, Wafa;Ktari, Leila;Bour, Monia El;Boudabous, Abdellatif;Grignon-Dubois, Micheline
    • ALGAE
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    • v.31 no.2
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    • pp.129-136
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    • 2016
  • The Mediterranean Sea is currently facing dramatic changes and threats, including change in native species and accidental introductions. The introduced green alga Codium fragile subsp. fragile (Suringar) Hariot influences diversity and community structure in some parts of the world. This paper documents the distribution of this species in Tunisia and provides a morphological description of C. fragile subsp. fragile in Northern Tunisia. Results confirm the identity of Tunisian specimens as the invasive subspecies C. fragile subsp. fragile. This is the first morphological characterization of this subspecies in Tunisia.

Morpheme Recovery Based on Naïve Bayes Model (NB 모델을 이용한 형태소 복원)

  • Kim, Jae-Hoon;Jeon, Kil-Ho
    • The KIPS Transactions:PartB
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    • v.19B no.3
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    • pp.195-200
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    • 2012
  • In Korean, spelling change in various forms must be recovered into base forms in morphological analysis as well as part-of-speech (POS) tagging is difficult without morphological analysis because Korean is agglutinative. This is one of notorious problems in Korean morphological analysis and has been solved by morpheme recovery rules, which generate morphological ambiguity resolved by POS tagging. In this paper, we propose a morpheme recovery scheme based on machine learning methods like Na$\ddot{i}$ve Bayes models. Input features of the models are the surrounding context of the syllable which the spelling change is occurred and categories of the models are the recovered syllables. The POS tagging system with the proposed model has demonstrated the $F_1$-score of 97.5% for the ETRI tree-tagged corpus. Thus it can be decided that the proposed model is very useful to handle morpheme recovery in Korean.

Physical Habitat Simulation Considering Stream Morphology Change due to Flood (홍수에 의한 하도변형을 고려한 물리서식처 모의)

  • Lee, Sungjin;Kim, Seung Ki;Choi, Sung-Uk
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.34 no.3
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    • pp.805-812
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    • 2014
  • This study investigates the impact of morphological change on the physical habitat simulation. For this, CCHE2D model is used for the hydraulic analysis including the morphological change, and the physical habitat suitability is assessed with habitat suitability curves. The model is applied to a 2.5km long reach downstream of the Goesan Dam, from Sujeon Bridge to Daesu Weir. Flow data of discharge and stage in July, 2006 are used in the computation. The numerical model is verified by means of comparison with the measured water surface elevation data, and the variation of the river bed is not verified in this study. Adult Zacco platypus is chosen for the dominant species. Physical habitat simulations result in composite habitat suitability and weighted usable area for drought, low, normal, and averaged-wet flows. The simulation results indicate that the composite suitability index increased at reaches right downstream of the Sujeon Bridge and around the bend. This also increased weighted usable area by 5.4-11.3%.

A Study on the Wave Type and the Damage of Hair according to Water content when Heat permanent is treated - Focus on Damaged Hair -

  • Lee, Soon-Hee;Choi, Jung-Myung
    • Journal of Fashion Business
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    • v.12 no.6
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    • pp.11-22
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    • 2008
  • The goal of this study is to provide beauticians with the fundamental material to use effectively heat permanent wave in beauty industry as well as their customer's satisfaction. It carried out an experiment with damaged hair of a woman in her late twenties to investigate the change of physical and morphological characteristics by its water content when performing heat permanent wave. After spreading 0g, 1g, 2g, 3g, and 4g of water on damaged hair respectively, heat permanent wave was treated and the change of hair was observed. The change of physical characteristic was compared through permanent wave form of hair, tensile strength and elongation. The change of morphological characteristic was observed through Scanning Electron Microscope(SEM) and Transmission Electron Microscope(TEM). The result of experiment on the physical specificity revealed that permanent wave form was the most ideal when the water content was 2g, also 3g. Though the materials with much moisture content formed the results were not satisfied. The material with 0g of water content didn't make the wave. In terms of tensile strength and elongation, tensile strength was generally reduced as per the damaged degree of hair. On the contrary, elongation was increased. It observed the changes of morphological characteristic that the damage on hair cuticle was deepen, as its moisture content was decreased, and cuticle's surface was worn away. The observation of fine structure on hair section by transmission electronic microscope also certainly showed the result that damaged hair having experience with chemical treatment had got much damaged to hair cuticle as well as hair cortex. Generally chemical treatment makes hair damaged. Under consideration of this aspect, the ultimate goal of this thesis is to minimize the damage of hair caused by chemical treatment and get the satisfaction on the hair style. According to the result of experiment, the damaged hair whose moisture content was 3g showed the best permanent wave form.

The Comparison of Physical & Morphological Damage of Hair According to the Bleaching Methods by the $H_2O_2$ Concentration (탈색단계별 과산화수소 농도에 따른 모발의 물리.형태적 손상정도 비교)

  • Lee, Eung-Kyeung;Hwang, Jung-Deog;Kim, Hye-Jeung
    • Journal of the Korean Society of Fashion and Beauty
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    • v.5 no.1 s.12
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    • pp.71-77
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    • 2007
  • This study attempted to comparative analysis about the physical and morphological damage degrees of hair according to the bleaching methods by $H_2O_2$ concentration. As a result of the changes in the physical characteristics of the hair according to the deceleration operation methods by 3-6-9% and 9% $H_2O_2$ concentration, the intensity of tension considerably decreased but the elongation was increased. And the more the damage of hair, the larger the degree of change. Regarding the method of deceleration operation, the 3-6-9% deceleration operation method was more damaging than the 9% single deceleration operation method. In the change of the characteristics of the form of the hair, the control group of the 5-level deceleration hair generally showed a smooth external appearance and regular and closely overlapped epidermis and undamaged cuticle were observed. But in the 3-6-9% deceleration operation method and 9% single deceleration operation method, damages such as the irregular form of the edge of the epidermis and the unclear boundary between the epidermis occurred.

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Morphological Change of Crosslinked ${\beta}$-Cyclodextrin after Recycling

  • Han, Eun-Mi;Kim, Song-Hee;Kim, Ki-Woo;Kwak, Hae-Soo
    • Journal of Dairy Science and Biotechnology
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    • v.25 no.1
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    • pp.9-13
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    • 2007
  • The present study was carried out to examine the effect of crosslinked ${\beta}$-cyclodextrin(${\beta}$-CD) made by adipic acid on cholesterol removal rate and find the structural change after recycling on SEM observation. The size reduction and morphological changes were found during the recycling process and the profound changes were observed at 8th time reuse. After cholesterol removal in milk, the used crosslinked ${\beta}$-CD was washed for cholesterol dissociation and reused. In recycling study, the cholesterol removal rate at first trial was 92.5% in milk, which was mostly same as that using new crosslinked ${\beta}$-CD(92.4%). With repeated 10th reuse of crosslinked ${\beta}$-CD resulted in 81.4% of cholesterol removal in milk. Similar trend was found in cream and cholesterol removal was 91.5% at 1st trial and 83.4% at 10th trial. In both milk and cream samples, the removal rate at 1st reuse was not significantly different from that at 6th reuse(p>0.05). The present study indicated that crosslinked ${\beta}$-CD made by adipic acid resulted in the effective recycling efficiency, especially up to 6th reuse and morphological modifications were not distinguishable up to 8th reuse.

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Ozone-water Treatment on the Morphological Changes of Endosperm cell and the activity of Acid Phosphatase during Soybean(Glycine max) Germination (대두 발아중 오존수 처리가 acid phoshatase 및 배유세포의 형태학적인 변화)

  • 박홍덕
    • Journal of Life Science
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    • v.11 no.5
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    • pp.489-495
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    • 2001
  • The effect of ozone-water treatment on the morphological change of endosperm cells and the activity of acid phosphatase during Glycine max germination was investigated with electron microscope. Acid phosphatase showed the activity in the cell organelles of germinating endosperm of seed. it's activity occurrs in 12 hrs cultivation after 0.5 ppm ozone-water treatment. As the differentiation of endosperm, reaction products of the acid phosphatase appear to be accumulated invacuole after treatment of ozone-water. This result confirm that acid phosphatase is inveolved in the decomposition and translation of the intracellular storage materials. The characteristics of grganelle in the endosperm cell during germination were discussed.

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A Study on the Spatial Characteristics of Modern Architecture found from the Olin Library Competition - Focused on the Local Order and Morphological symbols - (올린 도서관 현상설계에서 나타난 근대건축의 공간적 특성에 관한 연구 - 장소적 질서와 형태적 상징을 중심으로 -)

  • Lim, Jong-Yup;Kim, Yun-Kyeom
    • Journal of the Korean Institute of Educational Facilities
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    • v.22 no.4
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    • pp.15-25
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    • 2015
  • The Olin Library in St. Louis was an important design competition for the United States in the 1950's, the rear of America's modern architecture. The participants of this competition were a variety of representative architects and groups of its time. With the library's functional rationality, the Olin Library competition was legible of the aspects of modern architectural flow. The competition required two demands. The first demand was absolute importance in character definition of place, which was to satisfy the site conditions approached from campus design. Secondly was related to interpretation of morphological symbolism in an architectural matter. The experiments of American modern architecture started to change its ideal goal gradually ; accommodating the altering public's code, at the same time, maintaining the original modern value was the reason to changing the ideal goal. As a turning point, the Olin Library should be understood as an important work, which divulged the value change of architectural interpretation.