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An Ultrastructural Study on Endocrine Cells in the Pyloric Region of the Korean Hedgehog(Erinaceus koreanus) (한국산 고슴도치 유문부에 있어서 내분비세포의 전자현미경적 연구)

  • Lee, Jae-Hyun
    • Applied Microscopy
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    • v.17 no.1
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    • pp.177-184
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    • 1987
  • Endocrine cells in the pyloric region of the hedgehog were studied ultrastructurally. 4 types of endocrine cells classified as gastric-type EC, ELC, $D_1$, and G cells were observed in this region. The gastric-type EC cells contained pleomorphic granules with high electron density and highly dense bodies in a dense matrix. ECL cells were characterized by the presence of round or oval granules with high electron density. Some granules of ECL cells showed a small amount of content or empty. $D_1$ cells contained round and small granules with low electron density. They occasionally showed a narrow halo between the limiting membrane and the dense materials. G cells were characterized by the presence of round or oval granules with low electron density. Some granules of these cells showed a narrow halo between the limiting membrane and the core.

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Immunohistochemical study on the insulin-, glucagon-, somatostatin-, and pancreatic polypeptide secreting cells in Korean native goat (한국재래산양 췌장의 insulin, glucagon, somatostatin 및 pancreatic polypeptide 분비세포에 관한 면역조직화학적 연구)

  • Lee, Heungshik S.;Lee, In-se;Kang, Tae-cheon;Kim, Jin-sang;Yi, Seong-joon
    • Korean Journal of Veterinary Research
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    • v.35 no.1
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    • pp.45-54
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    • 1995
  • Pancreatic endocrine cells containing glucagon, insulin, somatostatin and pancreatic polypeptide were identified in the pancreas of the Korean native goat by using immunohistochemical method. Glucagon immunoreative cells were oval or fusiform in shape and located at the periphery of the pancreatic islets. Insulin immunoreactive cells were round or oval in shape and occupied throughout the pancreatic islets except the small area of the periphery. Somatostatin immunoreative cells were oval and elliptical, and mainly located at the periphery of the pancreatic islets. Some of these cells had a cytoplasmic process. Pancreatic polypeptide immunoreactive cells were elliptical or polyhedral and located at the periphery of the pancratic islets where two or more cells formed a cell cluster. The distribution rates of glucagon, insulin, somatostatin and pancreatic polypeptide immunoreactive cells were 24.4%, 44.3%, 13.2% and 18.1% respectively.

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Fine Needle Aspiration Cytology of Proliferative Fasciitis (증식성 근막염의 세침흡인 세포학적 소견)

  • Choi, Yoon-Jung;Yi, Sang-Yeop;Yang, Woo-Ick;Jung, Soon-Hee;Lee, Kwang-Gil
    • The Korean Journal of Cytopathology
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    • v.4 no.1
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    • pp.52-56
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    • 1993
  • Proliferative fasciitis is a benign pseudosarcomatous mesenchymal lesion occurring in the subcutis. The lesion occurs clinically as a tumorous mass that develops within a rather short time in elderly patients. We recently experiecened a case of fine needle aspiration cytology of proliferative fasciitis in the left anterior chest wall of a 72 year-old male patient. The smear revealed two types of cells. One was the large and mostly oval cell with one or two nuclei lying at the periphery of the cell body and abundant basophilic cytoplasm like the ganglion cell. The nuclei were round to oval, had vesicular chromatin and contained prominent nucleoli. The other was the spindle shaped fibroblast with an oval nucleus. The differential diagnosis includes a true tumor such as ganglioneuroma, rhabdomyosarcoma, and liposarcoma and therefore fine needle aspiration cytology is very much indicated in order to exclude these possibilities.

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Fine Needle Aspiration Cytology of Secretory Carcinoma of the Breast - A case report - (유방의 분비성 상피암종의 세침 흡인 세포학적 소견 - 1례 보고 -)

  • Ha, Chang-Won;Koh, Jae-Soo;Myong, Na-Hye;Cho, Kyung-Ja;Jang, Ja-June
    • The Korean Journal of Cytopathology
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    • v.3 no.1
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    • pp.25-29
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    • 1992
  • Secretory carcinoma is a very rare tumor of the breast, having characteristic histologic findings. A cytologic study of a secretory carcinoma is presented. The smears were abundant in tumor cells which were arranged in loosely adherent or large tight clusters in clear background. The individual cells were round or oval, monomorphic, and had abundant eosinophilic cytoplasm. The cytoplasm showed distinct borders and single or fine vacuolization. The nuclei were peripherally located, oval, and vesicular with small prominent nucleoli. As in histology, the cytologic features were so characteristic that a diagnosis of secretory carcinoma could be made by ctyologic study only.

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An Ultrastructural Study on Larval Hemocytes of Acrida cinerea Thunberg (방아깨비 종령유충의 혈구에 대한 전자현미경적 연구)

  • Yu Chai-Hyeock;Yang He-Young;Kim Woo-Kap;Kim Chang-Whan
    • Applied Microscopy
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    • v.7 no.1
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    • pp.13-20
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    • 1977
  • The ultrastructures of hemocytes of Acrida cinerea Thunberg were studied and 4 types of hemocytes were noticed; prohemocytes, plasmatocytes, granular cells and adipohemocytes. Prohemocytes were the smallest of all cell types with poor cytoplasmic organelles, such as endoplasmic reticulum, Golgi complexes, vacuoles and Iysosomes. Plasmatocytes were round or oval with many cytoplasmic processes, vacuoles, endoplasmic reticulum and even myelinated bodies. Granular cells were spindle-shaped or oval. In both cases, they are characterized by various granules. Adipohemocytes were very rich in lipid droplets and microtublles.

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Ice Making Characteristics at Ice-on-coil Type Following Change of Ice Making Environment (제빙환경 변화에 따른 아이스 온 코일의 제빙특성)

  • Jung, Eun-Ho;Park, Ki-Won
    • Proceedings of the SAREK Conference
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    • 2008.11a
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    • pp.319-323
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    • 2008
  • The study experimented to understand the ice making characteristics on to kinds of round tube type and oval tube type using ice maker. The experiment were carried out under various conditions, that used brine temperature $-10{\sim}-6^{\circ}C$, brine flow rate $1.0{\sim}1.8\;m/s$ and inlet water temperature $6{\sim}-12^{\circ}C$ etc. Mass of ice per making area increased according to the decrease of the brine temperature and inlet water temperature, but that was increased according to the increase of the brine flow rate.

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A Study on Face Types and Glasses Wear of Young Peoples (청년들의 얼굴형태와 안경착용에 관한 연구)

  • Kim, Hye-Dong;Kim, Hyun-Jung
    • Journal of Korean Ophthalmic Optics Society
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    • v.12 no.3
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    • pp.35-38
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    • 2007
  • This study surveyed on eye size, face types and glasses wears of normal 100 young peoples from 20 to 30 years old. The analysis of data resulted in as follows: 1. The vertical eye size were in case of below 2.4 mm (2%), 2.5-2.9 mm (40%), 3.0-3.5 mm (57%), and in case of high 3.6 mm (1%). 2. The horzontal eye size were in case of below 1.1 mm (52%), 1.2-1.4 mm (28%), 1.5-1.7 mm (18%), and in case of high 1.8 mm (2%). 3. As a whole, the face types were oval type (29%), round type (24%), square type (18%), and triangle type (2%). 4. As the male, the face types were oval type (32%), round type (10%), square type (26%), and triangle type (32%). 5. As the female, the face types were oval type (18%), round type (40%), square type (12%), and triangle type (30%). 6. As a whole, the FPD size were in case of larger than PD (49%), in case of suitable (25%), in case of smaller than PD (49%). 7. As the male, the FPD size were in case of larger than PD (28%), in case of suitable (36%), and in case of smaller than PD (32%). 8. As the female, the FPD size were in case of larger than PD (44%), in case of suitable (26%), and in case of smaller than PD (30%).

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Using Image Augmentation on Face Shape Classification (얼굴 모양 분류에 대한 Image Augmentation 적용)

  • Park, Jung-Won;Mo, Hyun-Su
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2021.07a
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    • pp.29-30
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    • 2021
  • 본 논문에서는 이미지 분류에 쓰이는 최신 모델로 CNN과 ImageNet을 기반으로 한 EfficientNet을 활용해서 Square, Oval, Oblong, Round, Heart 총 다섯 가지의 얼굴 모양으로 분류하는 task에 두 가지 데이터로 실험해보고 추가적으로 Image Augmentation 기법을 활용해 성능향상을 보였다.

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Fine Needle Aspiration Cytology of Paraganglioma of the Retroperitoneum (후복막강 부신경절종의 세침흡인 세포학적 소견)

  • Han, Jee-Young;Lee, Kwang-Gil
    • The Korean Journal of Cytopathology
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    • v.3 no.1
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    • pp.19-24
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    • 1992
  • A case of paraganglioma of the retroperitoneum diagnosed by fine needle aspiration cytology is described. A 60-year-old man presented with abdominal discomfort for 4 months. The smear revealed cellular sheets with partly rosettoid appearance. Many piexiform capillaries were distributed between the cellular sheets or encircled the cellular nests forming zell-ballen pattern. The tumor cells were monotonous and oval to round. The cytoplasm was amphophillc, finely granular and poorly defined. The nuclei were round and had evenly dispersed chromatin and small nucleoli. Cells having large or spindle nuclei were some-times observed. The tissue sections showed typical findings of paragnglima. The cytological differential diagnoses included islet cell tumor of the pancreas and carcinold tumor. The clinical and histoloigic findings as well as cytologic findings were helpful to confirm the diagnosis.

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OXYPHILIC ADENOMA OF PAROTID GLAND (이하선에 발생한 Oxyphilic Adenoma의 증예보고)

  • Kim, Ji-Soo;Lee, Hae-Chul;Lee, Woong-Soon;Kim, Hyoun-Kyoum;Lim, Chang-Yun;Yoon, Hee-Chul
    • The Journal of the Korean dental association
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    • v.10 no.11
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    • pp.769-771
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    • 1972
  • The authors had observed a case of oxyphilic adenoma occurred in the right parotid gland of 29 year old woman. The results are as follows. 1. The 5x5x2 cm. sized mass had induration and accompanied pus discharge. 2. Tumor cells were revealed large eosinophilic cells having round or oval nuclei lying in the periphery, and mitotic figures could not be seen. 3. The cell membrane of tumor cells were obscure, and lymphoid tissue and infiltration of small round cells were observed in stromal connective tissue.

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