• Title/Summary/Keyword: Translucent

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Chronic maxillary sinusitis caused by root canal overfilling of Calcipex II

  • Kim, Jin-Woo;Cho, Kyung-Mo;Park, Se-Hee;Park, Soh-Ra;Lee, Sang-Shin;Lee, Suk-Keun
    • Restorative Dentistry and Endodontics
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    • v.39 no.1
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    • pp.63-67
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    • 2014
  • This is a case report of chronic maxillary sinusitis caused by root canal overfilling of Calcipex II (Techno-Dent). A 60 year-old male complained of dull pain in the right maxillary molar area after complicated endodontic treatment using Calcipex II paste and was finally diagnosed with a chronic maxillary sinusitis through a clinical and radiological observation. In the biopsy examination, the periapical granuloma contained a lot of dark and translucent Calcipex II granules which were not stained with hematoxylin and eosin. They were usually engulfed by macrophages but rarely resorbed, resulting in scattering and migrating into antral mucosa. Most of the Calcipex II granules were also accumulated in the cytoplasms of secretory columnar epithelial cells, and small amount of Calcipex II granules were gradually secreted into sinus lumen by exocytosis. However, chronic granulomatous inflammation occurred without the additional recruitment of polymorphonuclear leukocytes (PMNs) and lymphocytes, and many macrophages which engulfed the Calcipex II granules were finally destroyed in the processes of cellular apoptosis. It is presumed that Calcipex II granules are likely to have a causative role to induce the granulomatous foreign body inflammation in the periapical region, and subsequently to exacerbate the chronic maxillary sinusitis in this study.

Epidemiological Investigation and Antibiotic Sensitivity of Salmonellosis in Goats at the Selected Areas of Bangladesh

  • Saha, Gobindha Kumar;Paul, Ashit Kumar;Abdussamad, Abdussamad;Islam, M. Ariful;Khan, M. Shahidur Rahman
    • Journal of Embryo Transfer
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    • v.28 no.4
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    • pp.337-342
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    • 2013
  • Salmonellosis is one of the life-threating diseases of goat in Bangladesh. Therefore, the present study was designed to study the prevalence of Salmonellosis, and isolation and characterizations of the Salmonella spp. from apparently healthy and diarrheic goat. A total of 47 faces samples were collected from selected place and cultured onto different prescribed medium to isolate it. In this study, 12.76% (6/47) samples were found to be positive for Salmonella spp. During culture on SS agar medium, all of the Salmonella isolates produced round, smooth, opaque, translucent and black color colonies on SS agar media. All of the isolated Salmonella spp. fermented dextrose, maltose and mannitol with production of acid and gas but did not ferment sucrose and lactose. However, these isolates had showed Indole and Voges-Proskauer test negative, Methyl-Red test positive. All of these isolates were subjected to rapid plate agglutination test with polyvalent "O" (Poly 'O') and polyvalent "H" (poly 'H') antisera where positive agglutination were observed. They were highly sensitive to ciprofloxacin, spiramycin and gentamycin; moderately sensitive to oxytetracyline, streptomycin and amoxicillin; less sensitive to sulphamethoxazole and resistant to penicillin-G. Based on the present findings, it may be concluded that the investigated Salmonella spp. from goats might be S. typhimurium, S. enteritidis, S. brandenburg, S. salford, S. newbrunswick, S. newport or S. dublin. Further study will be needed, therefore it requires further characterization using other serological and molecular techniques.

Difference of Translucency according to Drying Time after Staining of Dental Zirconia (치과용 지르코니아 착색 후 건조시간에 따른 반투명도의 차이)

  • Lee, Joo-Hee;Park, Jin-Young;Kim, Dong-Yeon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.22 no.4
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    • pp.124-130
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    • 2021
  • Dental prosthesis translucency importantly contributes to aesthetic outcomes. The purpose of this study was to investigate the effect of drying time and zirconia coloring agent type on translucency. For the experiment, 90 circular specimens were fabricated for each zirconia block. Then, zirconia specimens were treated with a coloring agent for 180 seconds and dried for 0 seconds (undried), 30 seconds (intermediate dry), or 30 minutes (complete dry). Then, a specimen was placed on a black standard tile or a white standard tile, and using a standard D65 light source reflected was measured using the light removal method. A total of three repeated measurements were obtained per specimen. One-way ANOVA was used to compare and analyze the relationship between zirconia translucency and drying time. Zirconia and coloring liquid types were significantly associated with translucency (P < 0.001). Although no significant difference was observed with respect to drying time (P > 0.922), zirconia in the completely dried (30 minutes) state was more translucent.

Choice of resin cement shades for a high-translucency zirconia product to mask dark, discolored or metal substrates

  • Dai, Shiqi;Chen, Chen;Tang, Mo;Chen, Ying;Yang, Lu;He, Feng;Chen, Bingzhuo;Xie, Haifeng
    • The Journal of Advanced Prosthodontics
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    • v.11 no.5
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    • pp.286-296
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    • 2019
  • PURPOSE. The aim was to study the masking ability of high-translucency monolithic zirconia and provide guidance in selecting resin luting cements in order to mask discolored substrates. MATERIALS AND METHODS. 160 high-translucency zirconia specimens were divided into 32 groups depending on their thickness and shades. Using five shades of try-in paste, the specimens were luted onto the substrates (Co-Cr, precious-metal, opaque porcelain-sintered Co-Cr, opaque porcelain-sintered precious-metal, and 5M3-shade zirconia). All CIELAB color parameters were measured and statistically analyzed. RESULTS. Zirconia shade and thickness and try-in paste shade affected CIELAB color parameters (P=.000) in different substrates groups, and there were interactions among these factors (P=.000). All five try-in paste shades can be chosen to achieve ${\Delta}E$ values of zirconia with 1.2 - 1.5 mm for masking dark-tooth-like 5M3-shade and zirconia with 1.5 mm for masking precious-metal groups < 2.6. Only suitable try-in paste shades were used, can ${\Delta}E$ values that less than 2.6 be achieved when applied translucent monolithic zirconia with 0.7-1.0 mm for masking dark-tooth-like 5M3-shade and zirconia with 0.7 - 1.2 mm for masking precious-metal groups. CONCLUSION. Choosing suitable resin cement shades is necessary for high-translucency monolithic zirconia to achieve ideal masking ability (${\Delta}E$ < 2.6) on the dark-tooth.

A Study on the Visual Attention of Game Broadcast Real-time Review Using Eye Tracking: Focusing on Mobile Platform (아이트래킹을 활용한 개인 게임방송 실시간 댓글의 시각적 주의에 관한 연구: 모바일 플랫폼을 중심으로)

  • Yin, Shuo-Han;Wang, Jin-Nan;Hwang, Mi-Kyung;Lee, Sang-Ho
    • Journal of Digital Convergence
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    • v.20 no.5
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    • pp.733-739
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    • 2022
  • The study investigated the users' functional requirement, degree of acceptance and preference of game broadcast real-time review .Secondly it comparatively analyzed the types and locations of game broadcast real-time review through eye tracking tech. The results show that users have high functional requirements and high acceptance for game broadcast real-time review but their preference has no significant correlation with the feature. Among the types of game broadcast real-time review the type with translucent text bubble took the highest visual attention. The above shows that the users' visual behavior has the tendency of special style. The visual attention analysis results of different types and locations of game broadcast real-time review in the study can play a guiding role in the interface design of real-time review feature in the future.

A Medium-Maturing and Good Quality Japonica Rice Variety, "Cheongan" (벼 중생 고품질 신품종 "청안")

  • Yang, Sae-Jun;Kim, Yeon-Gyu;Choi, Im-Soo;Cho, Young-Chan;Hwang, Hung-Goo;Hong, Ha-Cheol;Kim, Myeong-Ki;Oh, Myung-Kyu;Shin, Young-Seop;Lee, Jeom-Ho;Choi, Yong-Hwan;Choi, In-Bea;Kang, Kyung-Ho;Yea, Jong-Doo;Lee, Jeong-Heui
    • Korean Journal of Breeding Science
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    • v.41 no.4
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    • pp.649-653
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    • 2009
  • "Cheongan" is a new japonica rice variety developed from a cross between SR15225-B-22-1-2-1 and Iksan431 in summer season, 1997 by National Institute of Crop Science, RDA. The line SR15225-B-22-1-2-1 has good canopy architecture and multi-disease and insect resistance, and Iksan431 has translucent milled rice and good eating-quality. Heading date of Cheongan is August 13 in central lowland and mid-mountainous areas. "Cheongan" having culm length of 84 cm shows relatively semi-erect pubescent leaf blade and rigid culm, tolerance to lodging with and good canopy architecture. This variety has 14 tillers per hill and 126 spikelets per panicle. It shows tolerance to heading delay and spikelet sterility comparable to Hwaseongbyeo when exposed to cold stress. Leaf senescence of Cheongan progresses slowly during the ripening stage and the viviparous germination ratio was 59 %, similar to that of Hwaseongbyo. "Cheongan" shows moderately resistance to blast disease, but susceptible to stripe virus and brown planthopper. The milled rice of "Cheongan" exhibits translucent, clear non-glutinous endosperm and medium short grain. It shows similar amylose content of 18.7%, gelatinization temperature, and similar palatability of cooked rice compared to Hwaseongbyeo. The milled rice yield of this cultivar is about 5.54 MT/ha at ordinary season culture in local adaptability test for three years. Especially, "Cheongan" has better milling properties of higher 98.4% and 73.9% in the percentage of head rice in milled rice and milling recovery of head rice, respectively, than those of Hwaseongbyeo. "Cheongan" could be adaptable to the central and mid-southern plain area, and mid-western coastal area of Korea.

A Medium-Maturing, Good Quality and Multiple Disease Resistance Japonica Rice Variety 'Migwang' (중부지방 적응 고품질 중생 복합내병성 벼 신품종 '미광')

  • Kim, Myeong-Ki;Cho, Young-Chan;Kim, Yeon-Gyu;Hong, Ha-Cheol;Choi, Im-Soo;Hwang, Hung-Goo;Oh, Myung-Kyu;Kim, Jeong-Ju;Choi, Yong-Hwan;Baek, Man-Kee;Lee, Jeom-Ho;Jeong, Jong-Min;Choi, In-Bea;Yoon, Mi-Ra;Roh, Jae-Hwan;Ahn, Eok-Keun
    • Korean Journal of Breeding Science
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    • v.42 no.3
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    • pp.302-306
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    • 2010
  • 'Migwang' is a new japonica rice variety developed from a cross between SR15926-10-2-3-3-3 having a good canopy architecture and multiple disease resistance, and Iksan431 having a translucent milled rice and good eating-quality with a view of developing a new variety having multiple disease resistance by the rice breeding team at NICS, RDA in 2009. The heading date of this variety is August 15 and later than check variety, Hwaseongbyeo, by four days. 'Migwang' has 75 cm of culm length and 98 spikelets per panicle. This variety showed longer heading delay and higher spikelet sterility than those of Hwaseongbyeo while exposed to cold stress. This variety showed resistance to blast disease and bacterial leaf blight, but susceptible to rice stripe virus and planthoppers. The milled rice of this variety exhibits translucent, clear non-glutinous endosperm and short grain shape. 'Migwang' has better palatability index of cooked rice than that of Hwaseongbyeo. The whole grain rate of milled rice and milled rice recovery of 'Migwang' are higher than those of Hwaseongbyeo as 96.8% and 73.1%, respectively. 'Migwang' has 5.5 MT/ha in milled rice. 'Migwang' could be adaptable to the middle plain area, mid-western and southeastern costal areas and mid-mountainous areas in Korea.

A Wide Region of Tropical Asia Adaptable Japonica Rice 'Asemi' (아시아 광지역 적응성 자포니카 벼 '아세미')

  • Jeong, Eung-Gi;kang, Kyeong-Ho;Hong, Ha-Cheol;Cho, Young-Chan;Jung, O-Young;Jeon, Yong-Hee;Chang, Jae-Ki;Lee, Jeom-Ho;Won, Yong-Jae;Yang, Un-Ho;Jung, Kuk-Hyun;Yeo, Un-Sang;Kim, Bo-Kyeong
    • Journal of the Korean Society of International Agriculture
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    • v.31 no.1
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    • pp.76-81
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    • 2019
  • 'Asemi' is a rice variety derived from a cross between 'Jinmibyeo' which has translucent milled rice and medium maturity and 'Cheolwon46', an elite line with high yield and early maturity by the rice breeding team at NICS, RDA in 2013. The heading date of 'Asemi' is August 1, six days earlier than the check variety 'Hwaseong'. It has 82 cm culm length and 109 spikelets per panicle. 'Asemi' is resistant to blast disease, stripe virus and tungro virus, but susceptible to other viruses and planthoppers. The milled rice of this variety exhibits translucent, clear non-glutinous endosperm and short grain shape. It has protein content (6.7%) higher than 'Hwaseong', and amylose content (19.5%) similar to 'Hwaseong'. The milled rice recovery rate of 'Asemi' is similar to that of 'Hwaseong'. However, the head rice rate of 'Asemi' is higher than that of 'Hwaseong'. Milled rice yield of 'Asemi' is 5.23 MT/ha in ordinary cultivation. ' Asemi' could be adaptable to the wide region of tropical Asia (Registration No. 5639).

Age and growth of the Okhotsk atka mackerel, Pleurogrammus azonus in the coastal of Gangwon-do, East Sea (동해 강원도 연안 임연수어, Pleurogrammus azonus의 연령과 성장)

  • YANG, Jae-Hyeong;YOON, Byoung-Sun;KIM, Jong-Bin;CHOI, Young-Min;PARK, Jeong-Ho;LEE, Jae-Bong;PARK, Kie-Young;LEE, Dong-Jin
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.54 no.1
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    • pp.54-64
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    • 2018
  • The age and growth of Pleurogrammus azonus in the coastal of Gangwon-do, East Sea were determined, from monthly samples of commercial catches, caught by the gill net and set net fishery from January to December in 2008. Gonadosomatic index (GSI) began to increase in September, and reached the maximum between November and December. After spawning GSI began to decrease from January. The annuli of P. azonus are formed once a year, with the boundary between opaque and translucent zones forming from December to January. The relationships between fork length (FL) and body weight (BW) were $BW=0.005FL^{3.240}$($R^2=0.963$) for females and $BW=0.006FL^{3.238}$($R^2=0.946$) for males. The FLs at annuli formation in otoliths were back-calculated from the otolith-length relationship and were adjusted to von Bertalanffy growth curves to $FL_t=70.54(1-{\exp}^{(-0.099(t+1.188))})$ for females and $FL_t=51.87(1-{\exp}^{(-0.135(t+1.697))})$ for males. Until the age of 3 years, males grew faster than females; however, from the age of 4 years, females grew faster than males. In the future, we want to study the relationship between early growth and water temperature changes in the East Sea.

Rhizoctonia Blight of Azolla japonica Caused by Rhizoctonia solani (Rhizoctonia solani에 의한 큰물개구리밥(Azolla japonica) 마름병)

  • Lee, Jung-Han;Cha, Jea-Yul;Noh, Gil-Han;Han, Ki-Soo;Bae, Dong-Won;Kwon, Young-Sang;Lim, Chae-Shin;Jeong, Sung-Woo;Kwon, Jin-Hyeuk;Park, Chung-Gyoo;Kwak, Youn-Sig
    • Research in Plant Disease
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    • v.17 no.3
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    • pp.405-409
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    • 2011
  • Azolla Lam. is a small aquatic fern with deeply bilobed leaves, which are consisted of a thick greenish, with chlorophyll, upper (dorsal) lobe and a thinner, translucent lower (ventral) lobe, without chlorophyll, submerged in the water. Azolla blight was observed at a lotus pond. Mycological characteristics of the fungus associated with Azolla blight was immediately determined as Rhizoctonia sp. by the thickness and branching of hypha at right angles at the point toward the distal end of septa, with branching hypha is constricted. The fungus produced brown mycelia and dark brown sclerotia on PDA. The optimum temperature for mycelial growth and sclerotia formation were $25^{\circ}C$ and $30^{\circ}C$, respectively. The optimum temperature for fungal infection was $30^{\circ}C$, when spray inoculated. Phylogenetic analysis of rDNA-ITS revealed that the fungus was identified as Rhizoctonia solani (AG-1 IA) closest to one causing rice sheath blight disease. This is the first report on the blight disease of Azolla caused by R. solani in Korea.