• Title/Summary/Keyword: sheath

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Localized Giant Cell Tumor of Tendon Sheath Arising from the Anterior Cruciate Ligament of the Knee - 2 Cases Report - (슬관절 전방십자인대에 발생한 국소형 건막 거대세포종 - 2례 보고 -)

  • Koo, Bon Seop;Kim, Kyung Chul;Lee, Ho Jooog
    • Journal of the Korean Arthroscopy Society
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    • v.3 no.2
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    • pp.146-149
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    • 1999
  • The localized form of a giant cell tumor of tendon sheath rarely affected the large weight-bearing joints. Only four cases of localized giant cell tumor arising in the knee joint could be found in the literatures. Physical examination of the affected knee could show pain, swelling, locking, giving way and limitation of extension, but it was difficult to differentiate from meniscal tear or cruciate ligament tear. Two cases of localized giant cell tumor of tendon sheath were incidentally found in the knees during the reconstruction of the anterior cruciate ligaments. Both tumors arising from the anterior cruciate ligament were excised arthroscopically and were confirmed to be localized giant cell tumor of tendon sheath by microscopic examination. The clinical results were good after complete excision, so we reported these cases with a review of the literatures.

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Ethylene Production and Accumulation in Leaf Sheath and Its Relation to Tillering Suppression of Deep-Irrigated Rice Plants

  • Myung Eul-Jae;Kwon Yong-Woong;Lee Byun-Woo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.49 no.5
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    • pp.363-367
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    • 2004
  • The deep irrigation of rice plants brings about some beneficial effects such as reduced tiller production which results in the formation of bigger panicles, prevention of chilling injury, reduced weed growth, etc. The present study was carried out to examine the involvement of ethylene in the suppression of tiller production due to deep water irrigation in rice (cv. Dongjinbyeo). The ethylene production was induced in leaf sheath within 24 hours after the deep water irrigation and has increased even until 30 days after the treatment, recording 4.5-fold increase as compared to the shallow-irrigated rice plants. In the deep water irrigated rice plants, ethylene was accumulated to a high concentration in the air space of submerged leaf sheath as the irrigated water deterred the diffusion of ethylene out of the leaf sheath and ethylene biosynthesis was accelerated by the deep irrigation as well. The ethylene concentration recorded 35-fold increase in the deep-irrigated rice plants for 35 days. The tiller production was reduced significantly by the deep irrigation with water, the tiller bud, especially tertiary tiller bud differentiation being suppressed by the deepwater irrigation treatment, whereas the rice plants deep-irrigated with solutions containing $10^{-5}$ M or $10^{-6}$ M silver thiosulfate (STS), an action inhibitor of ethylene, showed the same or even higher production of tillers than those irrigated shallowly with water. This implies that the ethylene is closely linked with the suppression of tiller production due to deep water irrigation. In conclusion, ethylene, which was induced by hypoxic stress and accumulated in the leaf sheath due to submergence, played a key role in suppressing the tiller production of the deepwater irrigated rice.

MALIGNANT PERIPHERAL NERVE SHEATH TUMOR ON PALATE: A CASE REPORT (구개골에 발생한 악성 Peripheral Nerve Sheath Tumor의 증례보고)

  • Kwon, Min-Su;Lee, Hyun-Sang;Kim, Hyun-Chang;Ko, Seung-O;Shin, Hyo-Keun
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.30 no.3
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    • pp.228-233
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    • 2004
  • Summary: The malignant peripheral nerve sheath tumor(MPNST) is an aggressive neoplasm and can either arise independently or result from malignant change in preexisting neurofibromatosis (von Recklinghausen's disease). Its histologic characteristics remain controversial, but currently it is believed that the schwann cell is the origin of the peripheral nerve sheath tumors. MPNST is an uncommon neoplasm of the head and neck region, and its presentation in the oral cavity is quite rare. In this study, we report a patient with a rare case of a MPNST involving the maxilla. A case report: A 29-year-old female presented with a chief complaint of painless swelling with bleeding tendency on the left maxillary tuberosity area 2 months ago. Clinical examination showed a $5.0{\times}3.0cm^2$ sized, indurative swelling on the site. Conventional radiographs showed a relatively well-defined soft tissue mass involving the left maxillary sinus, and destruction of the anterior, posterolateral walls of the left maxillary sinus. Subtotal maxillectomy and split-thickness skin graft from thigh were undertaken. In histochemical and immunohistochemical studies, the specimen revealed positive reactivities to Vimentin and S-100 protein. Final diagnosis was made as MPNST.

Dyeing Properties Evaluation of Functional Sheath-Core Yarn (기능성 Sheath-Core 원사의 염색성 평가)

  • Kim, Jung-Gon;Ryu, Jung-Jae;Lim, Ji-Hye;Kim, Young-Un;Park, Yong-Wan;Ko, Jung-An;Kim, Eui-Hwa
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • 2011.11a
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    • pp.45-45
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    • 2011
  • 최근 환경과 건강에 대한 관심이 증대되면서, 복합기능을 갖는 다기능성 섬유에 대한 요구가 증대되고 있는 실정이다. 일반적으로 기능성은 마이크로캡슐이나 후가공제를 이용하여 일반 섬유 제품에 적용하고 있다. 마이크로캡슐이나 후가공제가 적용된 일반 섬유제품은 일상생활 속에서의 마찰 및 세탁 등으로 인해 기능 저하가 발생된다. 이러한 문제점을 개선하기 위해 특수 방사 기술을 이용하여 다기능성을 갖는 섬유 제조 기술이 개발되고 있다. 다기능성 섬유소재 및 응용제품은 그 제조 공정성이 우수하고, 염색 가공 등의 후 공정 조건에 의해 기능성 저하를 초래하지 않고, 지속시간이 오래 유지해야하는 조건을 만족해야한다. 이러한 기능성 저하 문제를 해결하고 내구성 향상 및 기능성의 지속 시간을 오래 유지하기 위하여 복합 방사 기술을 이용하여 이형 단면 원사, Sheath-Core 단면 원사 등이 개발되고 있다. 개발된 기능성 원사의 경우 일반 원사와 다른 형태의 염색성을 보일 수 있으며, 염색 온도 및 염색 시간 등 염색 조건이 달라질 수 있다. 본 연구에서는 식물 등에서 추출한 천연 항균 유기물을 마이크로캡슐화하여 이형단면의 심부에 담지된 형태인 Sheath(Nylon: 50%)-Core(PP MB: 50%) 원사의 염색성 평가 시험을 실시하였다. 시험 방법은 Sheath-Core 원사와 일반 Nylon 원사와 염착 거동 시험을 통해 비교해 나타냈고, 염색 전 후의 물성을 비교해보았다. 또한 염색성 평가 시험을 토대로 기능성 원사의 염색 온도와 시간에 따른 색차 비교 시험을 통해 기능성 원사의 염색 조건을 선정하는 시험을 실시하였다.

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A Study on the Morphological Observation of the Vascular Bundle Sheath in Sasa (Sasa류(類)의 유관속초관찰(維管束鞘觀察)에 의(依)한 형태학적(形態學的) 연구(硏究))

  • Kim, Jai Saing
    • Journal of Korean Society of Forest Science
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    • v.47 no.1
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    • pp.27-36
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    • 1980
  • To establish an easy classification method of bamboos observation of the shapes of vascular bundle sheath of Sasa, one of the important natural resources available in Korea, was made on the basis of vascular bundle sheath of bamboo culms because Sasa has a unique vascular bundle sheath as discussed by Grosser and Liese et al. Morphological characteristics of Saw observed are summarized as follows: 1. The thickness of culm wall showed no distinctive difference between upper and low parts of culms of Sasa grown at the ground level. 2. In relation to the taxonomical classification of bamboo, Sasa showed a and a' type but did not e.f.h. and e' type was not identified. 3. Two typical types of bamboo vascular bundle sheath, i.e. b.c.d.e. and g type and d and e type, were found in Sasa but sometimes b.c.g. type was not observed. 4. The results mentioned above seem to be an important key for classification of Sasa.

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The Study About Formation-Process Of religious Dress And It's Ornament(I)-Forcusing On Ancient Egypt- (종교복식의 형성 과정에 관한 연구(I)-고대 이집트를 중심으로-)

  • 임상임;김현경
    • Journal of the Korean Society of Costume
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    • v.39
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    • pp.21-37
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    • 1998
  • This study researchs forms of Egyptian religious dress for studying formation-process of religious dress and its ornament. The study goes abreast literature and the very spot's materials also divides god's dress, priest's. Ancient an egytian worshiped mainly animals, step by step animal's humanization. So gods were expressed animal's face and human's body. Egypt god's costume is 1st, to take off upper hament and wear loin cloth on trousers 2nd only to wear short sheath skirt. 3rd to wear shout sheath skirt and to skirt and to wear loin cloth on there 4th to cover whole body and to open hand like mummy. Egype goddess' costume is largely to wear long sheath skirt up to the ankle and we can see selkit goddess's figure that wearing kalasiris after new dynesty. Priest had been a bald head and worn loin cloth and surrounded leopard's skin on there, but after the period of empire, worn a wig and worn less stoically. Also god had hung the lion's tail at symbol of the dignity and priest had put on sandals for a ceremony.

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ELECTRON MICROSCOPIC STUDY ON THE INITIATION OF DENTAL CARIES (치아우식증의 최초 발생부위에 관한 전자현미경적 연구)

  • Choi, Yu-Jin
    • The Journal of the Korean dental association
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    • v.9 no.4
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    • pp.151-157
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    • 1971
  • Freshly extracted permant teeth were examined by electron microscope according to the Filmy replica method. Preparatory method with hydrochloric acid or proteolytic enzyme treatment was used in order to injure the structural composition of enamel surface to compare between the natural carious defects and the etched samples used in this study. The natural carious defects were chalky white or brown discolored portions at the smooth enamel surface without having visible loss of enamel substances. The findings were as follows: 1. The first caries attact initiated from the mineralized portion of rod sheath which is located at the top of enamel rod. 2. The caries developed downward along the rod sheath interprismatic substances and enamel rods subsequently. However, the caries involvement of interprismatic substances and enamel rods occured almost at the same time. 3. The rod sheath attached to the remineralized smooth emael surface was located at the top of enamel rod.

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The Treatment of Tarsal Tunnel Syndrome caused by Ganglion of Flexor Digitorum Longus Tendon Sheath - A Case Report - (장 족지 굴건 막의 결절종에 의해 유발된 족근 관 증후군의 치료 - 1예 보고 -)

  • Yang, Seung-Wook;Shin, Seung-Joon;Song, Mu-Ho;Choi, Sun-Jin
    • Journal of Korean Foot and Ankle Society
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    • v.4 no.2
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    • pp.79-82
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    • 2000
  • Tarsal tunnel syndrome caused by ganglion as space occupying lesion is unusual and known that excellent result can be expected from surgical treatment carried out soon after onset of the condition. The object of the current study is to report our experience of tarsal tunnel syndrome caused by ganglion of flexor digitorum longus tendon sheath treated with operative management in a 39 year-old man with a review of the literature.

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Dyeing and Heat Setting Properties of Low Melting PET Fiber (저온융착사를 이용한 섬유의 염색성 및 열처리 특성)

  • Hwang, Se-Jeong;Choi, Hyun-Seuk;Kim, Dong-Kwon;Chong, In-Sik;Kim, Sung-Gun
    • Textile Coloration and Finishing
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    • v.21 no.3
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    • pp.37-42
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    • 2009
  • The low melting PET yarn has sheath/core structure: sheath portion consists of low melting point PET and core portion is regular PET. Dyeing properties of fabric made from low melting PET yarn were investigated at different dyeing temperatures. It was found that the exhaustion yield on the low melting PET fabric was higher than on regular PET fabric. The total K/S value of the dyed low melting PET fabric increased as heat setting temperature increased above $150^{\circ}C$ because the sheath portion of the low melting yarn melted. Although fastness to light of the low melting PET fabric was similar to regular PET fabric, fastness to washing was inferior to regular PET fabric by 1 grade.

Primary Paraspinal Malignant Peripheral Nerve Sheath Tumor

  • Kim, Kyoung-Tae;Park, Yong-Suk;Kwon, Jeong-Taik;Kim, Young-Baeg
    • Journal of Korean Neurosurgical Society
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    • v.44 no.2
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    • pp.91-94
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    • 2008
  • Malignant peripheral nerve sheath tumors (MPNSTs) are very rare tumors. We experienced a case of MPNST in the cervical paraspinal space which was not associated with neurofibromatosis. The tumor located in left C6-7 foramen and compressed C7 root. The tumor was removed through the occipital triangle. We report a case of the primary cerivcal MPNST in a patient who did not have neurofibromatosis-1.