• Title/Summary/Keyword: Septa

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Prevalence of bony septa, antral pathology, and dimensions of the maxillary sinus from a sinus augmentation perspective: A retrospective cone-beam computed tomography study

  • Tadinada, Aditya;Jalali, Elnaz;Al-Salman, Wesam;Jambhekar, Shantanu;Katechia, Bina;Almas, Khalid
    • Imaging Science in Dentistry
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    • v.46 no.2
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    • pp.109-115
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    • 2016
  • Purpose: Sinus elevation procedures have become a routine and reliable way to gain bone volume in the edentulous maxilla for dental implant placement. Presence of bony septations and pathology in the maxillary sinus often cause complications leading to graft or implant failure or both. The aim of this study was to retrospectively evaluate the prevalence of pathology, direction of the septa, and sinus width measured at 2 mm, 5 mm, and 10 mm from the sinus floor in maxillary sinuses using cone-beam computed tomography (CBCT). Materials and Methods: Seventy-two sinuses from 36 random preoperative CBCT scans referred for implant therapy were retrospectively evaluated for the number, prevalence, and direction of bony septations and presence of pathology. Width of the sinus was also measured at 2 mm, 5 mm, and 10 mm from the sinus floor to account for the amount of bone available for implant placement. Results: Maxillary sinus septa were found in 59.7%. Presence of a single septum was noted in 20 sinuses (27.7%), followed by two septa in 17 sinuses. The most common direction of the septum was the transverse direction. Retention pseudocyst and mucosal thickening were the most commonly seen abnormality/pathology. Conclusion: Based on the high prevalence of septa and sinus pathology in this sample, a preoperative CBCT scan might be helpful in minimizing complications during sinus augmentation procedures for dental implant therapy.

The introduction of the evaluation method for welded joints in car body structure by the manual analysis (수계산을 통한 철도차량의 차체 용접이음부 강도 평가)

  • Jeong, Sang-Wung;Kim, Jae-Woong;Jang, Gil-Soo
    • Proceedings of the KSR Conference
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    • 2008.11b
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    • pp.1697-1702
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    • 2008
  • The objective of the review is to introduce the evaluation method of welding joint designs by using forces extracted from FE models. This evaluation method is currently being used for the Southeastern Pennsylvania Transportation Authority (SEPTA) project in the United States by request of the customer Engineer. The evaluation method was applied to critical joints connected by Fillet or Partial Joint Penetration (PJP) welds in car body structure for SEPTA project. The additional manual analysis is required based on the fact that Technical Specification in the United States requires the Contractor to apply Complete Joint Penetration (CJP) welds to all structural connections in Car body. However, in the car body design for Septa project there are some areas where CJP welds are not applied due to structural and manufacturing problems.

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Sturdy for the development of Bridge plate of SEPTA Sliver Line V (미국 전동차 Manual bridge plate 에 대한 고찰)

  • Choi, Se-Jung;Yeom, Gyung-An
    • Proceedings of the KSR Conference
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    • 2008.11b
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    • pp.451-457
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    • 2008
  • The aim of the sturdy is for the development of Bridge plate installing on floor for SETPA Sliver line V. SEPTA train have pocket sliding door which is similar with domestic trains. typically In the USA railway market, Portable type and standing type bridge plate used, easily hiding the bridge plate in stowed position and convenience operation, Bridge plate installed on floor is designed. relative regulation Like CFR APTA, and EN, UIC is reviewed and compared.

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Involvement of ${\beta}$-Lactamase Inhibitory Protein, BLIP-II, in Morphological Differentiation of Streptomyces exfoliatus SMF19

  • Kim, Eun-Sook;Song, Ju-Yeon;Kim, Dae-Wi;Ko, Eun-Ji;Jensen, Susan E.;Lee, Kye-Joon
    • Journal of Microbiology and Biotechnology
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    • v.18 no.12
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    • pp.1884-1889
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    • 2008
  • The ${\beta}$-lactamase inhibitory protein, BLIP-II, found in the culture supernatant of Streptomyces exfoliatus SMF19, shows no discernible sequence identity with other ${\beta}$-lactamase inhibitory proteins identified in Streptomyces spp. A null mutant of the gene encoding BLIP-II (bliB::$hyg^r$) showed a bald appearance on solid media. Although BLIP-II was initially isolated from the supernatant of submerged cultures, sites of BLIP-II accumulation were seen in the cell envelope. Mutation of bliB was also associated with changes in the formation of septa and condensation of the chromosomal DNA associated with sporulation. The bliB mutant exhibited infrequent septa, showing dispersed chromosomal DNA throughout the mycelium, whereas the condensed chromosomes of the wild-type were separated by regularly spaced septa giving the appearance of a string of beads. Therefore, on the basis of these results, it is suggested that BLIP-II is a regulator of morphological differentiation in S. exfoliatus SMF19.

The Distribution of Cytoplasm and Nuclei within the Extra-radical Mycelia in Glomus intraradices, a Species of Arbuscular Mycorrhizal Fungi

  • Lee, Jai-Koo
    • Mycobiology
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    • v.39 no.2
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    • pp.79-84
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    • 2011
  • Nuclear distribution within the extra-radical fungal structures and during spore production in the arbuscular mycorrhizae fungus Glomus intraradices was examined using an in vitro monoxenic culture system. A di-compartmental monoxenic culture system was modified using a nitrocellulose membrane and a coverglass slip for detailed observations. Nuclear distribution was observed using the fluorescent DNA binding probes SYBR Green I and DAPI. Both septate and non-septate mycelial regions were observed, but cytoplasmic contents were only found within non-septate mycelia. Nuclear fluorescent staining revealed that the non-septate hyphal region contained nuclei only with cytoplasm, and that nuclear distribution was limited by septa. Swollen hyphal bodies were often associated with septate and empty-looking hyphae. Cytoplasmic contents filled the swollen hyphal body from the non-septate hyphal region following removal of the septa. As a consequence, the swollen body developed into a new spore. These observations provide understanding about the distribution of AM fungal nuclei within extra-radical mycelia and during spore formation. The results suggest a mechanism by which the development of a cytoplasm-containing mycelium is controlled by the formation or removal of septa to efficiently maintain and proliferate essential contents. This mechanism may provide a survival strategy to the fungus.

Leaf Spot of safflower (Carthamus thinctorius) caused by Alternaria carthami and A. alternata (Alternaria carthami와 A. alternata에 의한 잇꽃 잎점무늬병)

  • Park, Kyeng-Seuk;Lee, Soon-Gu
    • Research in Plant Disease
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    • v.9 no.3
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    • pp.159-161
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    • 2003
  • Leaf spot diseases were found on safflower (Carthamus thinctorius) leaf in several fields located in Euisong-Gun, Gyengbuk province in Korea. The infected leaf rate of the diseases in surveyed area were different each years from 2001 to 2003 such as about 5%, 10%, and 30%, repectively. The typicla symptoms of diseases appeared first as small, light brown spots on leaves. And then spot turn dark brown and magnified. And yellow decoloration zone appeared surrounding dark brown spots. Mycological characteristics of Alternaria carthami, isolated from safflower mature leaf spot were dark gray colonies, conidiophores simple erect, septated, 40~80 ${\mu}m$ length; conidia solitary, straight, body size fo without beak length 40~100${\mu}m$, 10~15${\mu}m$ thick, Number of transverse septa 4~10 and longitudinal septa 4~7 ; beak with 2~4 septa, 30~65${\mu}m$ length. And A. alternata, isolated from old leaf were gray~dark gray colonies, conidiophores simple or branched, 20~110 ${\mu}m$ length; conidia long chaines, short conical or cylindrical beak, 2~6 transverse septa and several longitudinal septa, body size of without beak length 30~60 ${\mu}m$, 10~20 ${\mu}m$ thick ; beak length 5~35 ${\mu}m$. These are the first report on the leaf spot of safflower caused by Alternaria carthami, A alternata in Korea.

A case report of odontogenic myxoma with characteristic multilocular lesion (특징적인 다방성 소견을 보이는 치성 점액종의 증례보고)

  • Lee, Byung-Do;Lee, Wan;Paeng, Jun-Young;Son, Hyun-Jin
    • Imaging Science in Dentistry
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    • v.39 no.1
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    • pp.51-54
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    • 2009
  • Although odontogenic myxoma (OM) has various radiographic appearances, the characteristic features of OM are the multilocular radiolucent lesion, straight bony septa along the margin forming either square or triangular spaces. We present a case of OM in a 25-year old-male patient. Multilocular radiolucent lesion on the left mandible body showed tennis racket appearance. Cone beam computed tomography (CBCT) showed straight bony septa along the margin and cortical perforation. This CBCT features would have significantly contributed to allowing a diagnosis of OM. We think that this case shows characteristic radiographic features of odontogenic myxoma.

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The Effects of Injinchunggan-tang (Yinchenchinggan-tang) on DMN Liver Damage from Applying Proteomics (인진청간탕(茵蔯淸肝湯)이 DMN에 의한 간손상 proteome에 미치는 영향)

  • Kim, Hyo-Jin;Kim, Young-Chul;Lee, Jang-Hoon;Woo, Hong-Jung
    • The Journal of Internal Korean Medicine
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    • v.28 no.1
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    • pp.133-148
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    • 2007
  • Objectives : The purpose of our study was to investigate the effects of Injinchunggan-tang (Yinchenchinggan-tang) on DMN liver damage caused by applying proteomics. Materials and Methods: Sprague-Dawley rats were used in this experiment; the rats were divided into the normal group (normal saline), the control group (DMN) and the samplegroup (DMN+IJCGT). The DMN was induced 3 days a week for 3 weeks in the control group. The normal saline without DMN was induced by the same method in the normal group. Injinchunggan-tang extract was orally administered twice a day for 3 weeks after DMN was induced in the sample group. The livers of each group were processed and we investigated histology, OxyBlot, 2-dimensional electrophoresis, and western blot of liver of each group. Results : In the histological findings of the liver, the control group showed portal fibrosis with a few septa or without septa. The sample group showed no fibrosis or portal fibrosis without septa. In the OxyBlot finding, Injinchunggan-tang prevented liver damage by oxidation. In the 2-dimensional electrophoresis finding, formiminotransferase cyclodeaminase (FTCD), FYVE-finger containing protein, aldehyde dehydrogenase (ALDH), and ratio of predicted : hypothetical protein LOC68668 isoform 1 were changed. Conclusions : Injinchunggan-tang exerts an inhibitory effect against the fibrosis and oxidation induced by the DMN in the rat liver cell, and some proteins induced by the DMN were changed by Injinchunggan-tang.

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The Effects of Chungganhaeju-tang (Qingganjiejiu-tang) on Alcoholic Liver Damages by Applying Proteomics (청간해주탕(淸肝解酒湯)이 알코올성 간손상 Proteome에 미치는 영향)

  • Jung, Yun-Jong;Kim, Young-Chul;Woo, Hong-Jung;Lee, Jang-Hoon
    • The Journal of Internal Korean Medicine
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    • v.28 no.1
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    • pp.68-79
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    • 2007
  • Objectives : The purpose of our study was to investigate the effects of Chungganhaeju-tang (Qingganjiejiu-tang) on alcoholic liver damage by applying proteomics. Materials and Methods : Sprague-Dawley rats were used in this experiment; the rats were divided into a control group, alcohol group and Chungganhaeju-tang + alcohol group. Ethanol was orally administered twice a day for 4 weeks to the alcohol group. Water without ethanol was administered twice a day for 4 weeks to the control group. Ethanol + Chungganhaeju-tang extract was orally administered twice a day for 4 weeks to the Chungganhaeju-tang + alcohol group. The livers of each group were processed and we investigated histology, OxyBlot, 2-dimensional electrophoresis, and western blot of liver of each group. Results : In the histological findings of the liver, the alcohol group showed portal fibrosis with a few septa or without septa. The Chungganhaeju-tang + alcohol group showed no fibrosis or portalfibrosis without septa. In the OxyBlot finding, Chungganhaeju-tangprevented liver damage by oxidation. In the 2-dimensional electrophoresis finding, formiminotransferase cyclodeaminase (FTCD), glucose regulated protein, 58 kDa (GRP58K), aryl sulfotransferase, sulfotransferase family 1A, member 2, similar to acyl-coenzyme A oxidase-like, and catalase were changed. Conclusion : Chungganhaeju-tangexerts an inhibitory effect against the fibrosis and oxidation induced by alcohol in rat liver cell, and some proteins induced by alcohol were changed by Chungganhaeju-tang.

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