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Jugular Foramen Schwannoma: Analysis on Its Origin and Location
Song, Mee Hyun,Lee, Hye Yeon,Jeon, Je Sool,Lee, Jong Dae,Lee, Ho-Ki,Lee, Won-Sang Otology Neurotology, Inc. 2008 Otology & neurotology Vol.29 No.3
OBJECTIVE:: To examine the microsurgical anatomy of the jugular foramen and correlate anatomical findings to clinical manifestations of jugular foramen schwannomas concerning tumor origin and location. STUDY DESIGN:: Anatomical analysis of jugular foramen was performed by dissection of 25 cadavers (50 sides). By retrospective review of 9 cases of jugular foramen schwannomas surgically treated, the origin and location of tumor were studied. SETTING:: Tertiary referral center. MAIN OUTCOME MEASURES:: The anatomical characteristics of jugular foramen, lower cranial nerves, and inferior petrosal sinus were correlated with the origin and growth pattern of jugular foramen schwannomas. RESULTS:: The superior and inferior ganglions of the glossopharyngeal nerve and the superior ganglion of the vagus nerve were located within the jugular foramen. The superior ganglions of the glossopharyngeal and vagus nerves were located superiorly, whereas the inferior ganglion of the glossopharyngeal nerve was found inferiorly in relation to the inferior petrosal sinus orifice. In our series of 9 cases of jugular foramen schwannoma, the most common nerve of origin was the vagus nerve, followed by the glossopharyngeal nerve. CONCLUSION:: The reason for the predilection of the jugular foramen schwannoma for the glossopharyngeal and vagus nerves may be associated with the presence of their ganglions within the jugular foramen. Also, the inferior petrosal sinus may act as a barrier to tumor growth, and the location of the ganglion of tumor origination within the jugular foramen in relation to the inferior petrosal sinus may be correlated to the predominant direction of tumor extension.
Song, Young Hyun,Park, Sang-Yul,Yoo, Jin Sun,Park, Won Kyu,Kim, Hyo Sun,Choi, Seung Hee,Kwon, Seok Bin,Kang, Bong Kyun,Kim, Jae Pil,Jung, Hyun Suk,Yoon, Dae Ho,Yang, Woo Seok,Seo, Young-Soo Elsevier 2018 Chemical Engineering Journal Vol.352 No.-
<P><B>Abstract</B></P> <P>Fully inorganic lead halide perovskite materials have attracted tremendous attention because of their practical applications in optoelectronic devices, such as light emitting diodes. In this work, we report the first development of highly efficient, stable and green-emitting CsPbBr<SUB>3</SUB> perovskite NCs with a PE microcapsule. The CsPbBr<SUB>3</SUB> perovskite NCs were perfectly incorporated inside the PE microcapsule with a multi-lamellar structure, which shows better luminescence characteristics such as a high PLQY and thermal stability Furthermore, our results revealed the high luminous performance with a white conversion efficacy of 62.4 lm W<SUP>−1</SUP>, EQE of 31.8%, CRI of 37.01, and CCT of 6028 K on blue emitting InGaN LED chip. We suggest that our material will be one of the next generation candidate luminescence materials for application in optoelectronic devices.</P> <P><B>Highlights</B></P> <P> <UL> <LI> We successfully synthesized the efficient and stable green-emitting CsPbBr<SUB>3</SUB> perovskite nanocrystals. </LI> <LI> CsPbBr<SUB>3</SUB> perovskite of using the multi-lamellar microcapsule enhances the PLQY to 40%. </LI> <LI> The encapsulated perovskite NC composite material represents a next generation candidate luminescence material. </LI> </UL> </P>
Song, Young Hyun,Kim, Won Bin,Yoo, Jin Sun,Choi, Seung Hee,Park, Won Kyu,Kim, Yena,Yang, Woo Seok,Yoon, Dae Ho,Jung, Hyun Suk Elsevier 2018 CHEMICAL ENGINEERING JOURNAL -LAUSANNE- Vol.331 No.-
<P><B>Abstract</B></P> <P>In this work, we first report a fabrication approach for CsPb<SUB>1−x</SUB>Mn<SUB>x</SUB>Cl<SUB>3</SUB> perovskite film to address stability issues and for application in an optoelectronic device. The CsPb<SUB>0.77</SUB>Mn<SUB>0.23</SUB>Cl<SUB>3</SUB> perovskite film is applied to a UV LED chip and the conversion efficiency is shown to be 16.2lm/W at less than 20mA. The CsPb<SUB>0.77</SUB>Mn<SUB>0.23</SUB>Cl<SUB>3</SUB> perovskite film could be utilized as a new application for white LEDs, expanding the range of optical properties of LEDs, which could then be produced with reduced lead content.</P> <P><B>Highlights</B></P> <P> <UL> <LI> We successfully synthesized the CsPb<SUB>1−x</SUB>Mn<SUB>x</SUB>Cl<SUB>3</SUB> perovskite NCs with a Mn contents. </LI> <LI> Perovskite film showed good water stability when immersed in water. </LI> <LI> The luminous efficacy showed 16.2lm/W under a forward-bias current of 20mA. </LI> </UL> </P>
Won, Song-Dae 건국대학교 1985 論文集 Vol.20 No.1
일일령 국산 오골계에 오크파특신 A첨가사료(0,2,4, 및 8ug/g)를 생후 3일령 부터 17일령까지(2주간) 투여하여 사료섭취량, 사료효율, 폐사율 및 성장율을 측정하였으며 오크라톡신은 신장독이므로 신장무게와 뇨산을 조사하였다. 1) 사료섭취량은 대조군에 비하여 각각 81.2% (2ug/g군) 60.6% (4ug/g군) 및 49.4% (8ug/g) 정도 섭취하였다. 2) 증체는 0, 2, 4, 8 ug/g군에서 각각 55.6g, 33.3g, 17.3g 및 6.0g 정도여서 유의성인 현저했다(p<.05). 3) 사료효율은 각각 3.46(0 ug/g군) 4.69(2 ug/g군) 6.75(4 ug/g군) 및 15.85(8 ug/g군)으로서 유의성이 현저했다(p<.05). 4) 폐사는 4 ug/g과 8 ug/g 에서 각각 2마리 (16.7%)와 6마리 (50%)가 나타났다. 5) 성장율은 대조군은 97.8g인데 비해 2, 4, 8 ug/g군은 각각 75.6g, 60.1g 및 49.7g으로서 유의성이 나타났다. 6) 신장무계는 체중을 100으로 볼때 대조군(1,014g)에 비해 4 ug/g은 1.7배(1,693g), 8 ug/gㆍ2.2배 (2,253g)까지 증대되었다. 7) 뇨산을 측정결과 대조군(7,680)에 비해 4 ug/g군은 12,955로서 1.7배가량 높고 8 ug/g군 21,857mg/100ml로서 무려 2.8배가 높았다. 실험결과 오크라톡신 A는 다른 가금에서와 같이 신장독(nephrotoxin)임을 알 수 있었다. Graded concentrations of ochratoxin A (0,2,4, and 8 ug/g of feed) incorporated into the diet of Silky Fowls from 3 days of age until 17days of age (2weeks) resulted in a decreased grewth rate and feed consumption. Feed conversion ratio increased from 3.46 (control value) to 15.85 (8 ug/g). Mortality was increased significantly (p〈.05) at 8 ug/g. The weight of kidneys (weight % of body weight) were enlarged from 1.014g (control value) to 2.253 g (8 ug/g). Plasma uric acid were increaesd at 4 and 8 ug/g significantly (p〈.05) These data suggest that ochratoxin is a potent nephrotoxin in Silky Fowls as well as other poultry
Salvage of Infected Breast Implants
Song, Joon Ho,Kim, Young Seok,Jung, Bok Ki,Lee, Dong Won,Song, Seung Yong,Roh, Tai Suk,Lew, Dae Hyun Korean Society of Plastic and Reconstructive Surge 2017 Archives of Plastic Surgery Vol.44 No.6
Background Implant-based breast reconstruction is being performed more frequently, and implants are associated with an increased risk of infection. We reviewed the clinical features of cases of implant infection and investigated the risk factors for breast device salvage failure. Methods We retrospectively analyzed 771 patients who underwent implant-based breast reconstruction between January 2010 and December 2016. Age, body mass index, chemotherapy history, radiation exposure, and smoking history were assessed as potential risk factors for postoperative infection. We also evaluated the presence and onset of infection symptoms, wound culture pathogens, and other complications, including seroma, hematoma, and mastectomy skin necrosis. Additionally, we examined the mastectomy type, the use of acellular dermal matrix, the presence of an underlying disease such as hypertension or diabetes, and axillary node dissection. Results The total infection rate was 4.99% (58 of 1,163 cases) and the total salvage rate was 58.6% (34 of 58). The postoperative duration to closed suction drain removal was significantly different between the cellulitis and implant removal groups. Staphylococcus aureus infection was most frequently found, with methicillin resistance in 37.5% of the cases of explantation. Explantation after infection was performed more often in patients who had undergone 2-stage expander/implant reconstruction than in those who had undergone direct-to-implant reconstruction. Conclusions Preventing infection is essential in implant-based breast reconstruction. The high salvage rate argues against early implant removal. However, when infection is due to methicillin-resistant S. aureus and the patient's clinical symptoms do not improve, surgeons should consider implant removal.
Early Safety Monitoring of COVID-19 Vaccines in Healthcare Workers
Song Joon Young,Cheong Hee Jin,Kim Sung Ran,Lee Sung Eun,Kim Su Hyun,Noh Ji Yun,Yoon Young Kyung,Choi Won Suk,Park Dae Won,Sohn Jang Wook,Kim Woo Joo,Kim Min Ja 대한의학회 2021 Journal of Korean medical science Vol.36 No.15
Hospital-based surveillance for adverse events was conducted on healthcare workers after they received the first dose of coronavirus disease 2019 (COVID-19) vaccine. Among the two new platform vaccines (messenger RNA- and adenoviral vector-based vaccines), the rates of systemic adverse events were significantly higher among adenovirus-vectored vaccine recipients. Fatigue (87.6% vs. 53.8%), myalgia (80.8% vs. 50.0%), headache (72.0% vs. 28.8%), and fever (≥ 38.0°C, 38.7% vs. 0%) were the most common adverse events among adenovirus-vectored vaccine recipients, but most symptoms resolved within 2 days. Both types of COVID-19 vaccines were generally safe, and serious adverse events rarely occurred.
Performance of Confirmatory Interferon-γ Release Assays in School TB Outbreaks
Song, Seunghwan,Jeon, Doosoo,Kim, Jong Won,Kim, Yeong Dae,Kim, Sang-Pil,Cho, Jeong Su,Lee, Seung Eun,Cho, Woo Hyun,Park, Hye-Kyung,Kim, Yun Seong,Lee, Min Ki,Lee, Jun Ho Elsevier 2012 Chest Vol.141 No.4
<P>Interferon-γ release assays (IGRAs) have been incorporated into several national guidelines for latent TB infection (LTBI) diagnosis. However, their optimal application is still controversial and evolving. The aim of this study is to evaluate the performance of confirmatory IGRAs in addition to tuberculin skin tests (TSTs) in high school students with TST-positive (TST+) results who have had contact with another student who had TB (referred to in this article as 'contacts') in TB outbreaks in a high BCG-vaccinated population.</P>