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Ectopic pleomorphic adenoma on subcutaneous plane of the cheek
Kim, Yong Hun,Yoon, Hyung Woo,Kim, Jiye,Kim, Sug Won Korean Cleft Palate-Craniofacial Association 2019 Archives of Craniofacial Surgery Vol.20 No.1
Pleomorphic adenoma is the most common benign tumor of the salivary gland. Pleomorphic adenoma occurs most commonly in the parotid gland but it may involve other salivary gland such as submandible or lingual. We report an ectopic pleomorphic adenoma in the subcutaneous layer of the face. A woman presented with a mass of the nasolabial fold. After excision of the mass, it was revealed as an pleomorphic adenoma pathologically. An ectopic pleomorphic adenoma which was located in the subcutaneous layer of the face is very rare in medical literature.
Kim, Kyunghun,An, Tae Kyu,Kim, Jiye,Jeong, Yong Jin,Jang, Jaeyoung,Kim, Haekyung,Baek, Jang Yeol,Kim, Yun-Hi,Kim, Se Hyun,Park, Chan Eon American Chemical Society 2014 Chemistry of materials Vol.26 No.22
<P>With the goal of achieving high-performance electrically stable organic field-effect transistors (OFETs), we chemically graft a fluorinated polymer nanolayer onto the polar oxide dielectric surfaces via a simple and easy fabrication process in ambient air. The para-fluorine-thiol click reaction between poly(pentafluorostyrene) (PFS) and mercaptopropyltrimethoxysilane is used to synthesize a graftable fluorinated polymer (gPFS). The surface characteristics of the gPFS-treated SiO<SUB>2</SUB> dielectrics and the crystal structure and grain growth of the overlying organic semiconductors are investigated. Various semiconductor materials are employed for the OFETs prepared with gPFS-treated SiO<SUB>2</SUB> dielectrics, including vacuum-processed pentacene, <I>N</I>,<I>N</I>-ditridecyl-3,4,9,10-perylenetetracarboxylic diimide, solution-processed 5,11-bis(triethylsilylethynyl)anthradithiophene, and poly[2,5-bis(2-octyldodecyl)pyrrolo[3,4-<I>c</I>]pyrrole-1,4(2<I>H</I>,5<I>H</I>)-dione-(<I>E</I>)-1,2-di(2,2′-bithiophen-5-yl)ethane. Three OFETs are prepared with different dielectrics: (i) bare SiO<SUB>2</SUB>, (ii) gPFS-treated SiO<SUB>2</SUB>, and (iii) perfluorooctyltriethoxysilane-treated SiO<SUB>2</SUB>. The OFETs prepared with the gPFS-treated SiO<SUB>2</SUB> dielectrics display the highest mobilities and smallest hysteresis. Furthermore, the gPFS-treated SiO<SUB>2</SUB> provides the best device stability under a sustained gate bias, suggesting that the gPFS surface minimize the number of traps present in the OFET.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/cmatex/2014/cmatex.2014.26.issue-22/cm5030266/production/images/medium/cm-2014-030266_0011.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/cm5030266'>ACS Electronic Supporting Info</A></P>
Kim, Jiye,Lew, Dae Hyun,Roh, Tai Suk,Lee, Won Jai by Mutaz B. Habal, MD. 2017 JOURNAL OF CRANIOFACIAL SURGERY - Vol.28 No.7
ABSTRACT: The selection of materials for orbital wall reconstruction has been a matter of debate. This study aimed to evaluate the effectiveness of an acellular allogenic dermal matrix (ADM) as an orbital wall reconstruction material and to compare the results of orbital wall reconstruction with the ADM to those of reconstruction with the more widely used absorbable mesh plate and porous polyethylene. We retrospectively reviewed the clinical charts and computed tomography images of 73 patients who underwent orbital reconstruction at 1 institution between March 2013 and February 2014. In the ADM group, the mean defect size of 29 patients was 2.89 cm. After orbital wall reconstruction with ADM, patients with preoperative enophthalmos (7 patients), limited range of eyeball movement (6 patients), and diplopia (12 patients) showed improvements. In the comparative study, the 3 groups showed no significant differences with respect to age distribution (P = 0.522), defect size (P = 0.455), and preoperative findings such as enophthalmos (P = 0.811), diplopia (P = 0.357), and limited range of eyeball movement (P = 0.795). All the preoperative symptoms improved in every group, and in the ADM group, no complication was observed during the postoperative follow-up. ADM is a biocompatible material that combines the flexibility and rigidity required to support the orbital soft tissue. Therefore, it could be an excellent alternative material for orbital wall reconstruction.
Kim JeongHo,Lee Sang-Hoon,Kim Jiye,Hong Seung-Phil,Kim Sug Won 대한성형외과학회 2023 Archives of Plastic Surgery Vol.50 No.1
A 57-year-old man presented with a pigmented papule, 0.4 cm in diameter, on the left lower eyelid. Skin biopsy revealed a basal cell carcinoma, which was excised through a wide excision followed by a full-thickness skin graft (FTSG). Two weeks after the surgery, an erythematous nodule developed in the lower margin of the graft recipient site. The nodule size increased rapidly over 2 weeks, becoming dome-shaped with a central hyperkeratotic plug. A diagnosis of keratoacanthoma (KA) was made, and surgical excision was performed. Histological findings revealed a large, well-differentiated squamous tumor with a central keratin-filled crater and buttress. The HPV genotyping results were negative. Risk factors for KA include trauma, old age, exposure to UV radiation, immunosuppression, and HPV infection. KA has most often been reported to develop at the donor site. Although the pathogenesis of KA is unclear, trauma is believed to act as a second insult to a preceding oncogenic insult, such as exposure to UV radiation, resulting in a koebnerization. Herein, we report a case of solitary KA at a FTSG recipient site. This report presents information that may provide guidance during dermatologic surgeries.
Kim, Jiye,Lee, Changha,Yoon, Jeyong American Chemical Society 2018 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH - Vol.57 No.33
<P>Peroxodisulfate (PDS, S<SUB>2</SUB>O<SUB>8</SUB><SUP>2-</SUP>) is one of the strong oxidants (<I>E</I>°[S<SUB>2</SUB>O<SUB>8</SUB><SUP>2-</SUP>/HSO<SUB>4</SUB><SUP>-</SUP>] = 2.12 V<SUB>NHE</SUB>), which is widely used for radical polymerization or wastewater treatment. In electrochemical PDS generation, its efficiency highly depends on the •OH generating electrode materials. A boron-doped diamond (BDD) used in electrochemical PDS generation is very expensive prompting the need for new electrode materials for PDS generation. This study reports the self-doped TiO<SUB>2</SUB> nanotube array electrodes (blue and black TNAs) for PDS generation which are cheap and effective for generating a significant amount of •OH and comparable to BDD electrodes. Blue and black TNA electrodes were excellent for PDS generation exhibiting high current efficiencies for PDS generation (46% and 22%, respectively). Similar to the BDD electrode, it was also confirmed that •OH was the key precursor to the PDS generation on the self-doped TNA electrodes from the linear relationship between the PDS generation rate and •OH generation.</P> [FIG OMISSION]</BR>