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Bako Peter,Kovacs Marton,Uzsaly Janos,Burian Andras,Bodzai Greta,Nemeth Adrienn,Toth Arnold,Szanyi Istvan,Gerlinger Imre 대한청각학회 2022 Journal of Audiology & Otology Vol.26 No.4
Background and Objectives: Chronic suppurative otitis media (CSOM) with or without cholesteatoma is a frequent chronic inflammatory condition in children, which may lead to severe hearing loss that affects speech development. Treatment of recurrent CSOM associated with unserviceable hearing requires a specialized approach with regard to disease eradication and hearing rehabilitation. In this study, we investigated the advantages of subtotal petrosectomy (SP) combined with cochlear implantation (CI) in children with CSOM associated with unserviceable hearing and describe our experience with regard to the efficacy of this method, together with a literature review.Subjects and Methods: SP with sequential or simultaneous CI was performed in three children (four ears), and postoperative audiometric data were recorded.Results: The study included two male and one female patient. Mean age at the time of SP was 10.75 years (7–13 years). Sequential implantation was performed in three ears. Facial nerve palsy occurred after SP in one patient. The latest word recognition scores of Cases 1, 2, and 3 were 80% (at 60 dB), 75% (at 60 dB), and 70% (at 50 dB) and 90% (at 50 dB), respectively.Conclusions: SP with CI may be safe and reliable in children with CSOM associated with unserviceable hearing.
정은성,김경태,이길성,Steven J. Burian 대한토목학회 2011 KSCE JOURNAL OF CIVIL ENGINEERING Vol.15 No.7
This paper presents advancements to the approach for Total Maximum Daily Load (TMDL) development in Korea. The current Korean TMDL process does not directly consider uncertainty and it does not include an objective approach to allocate pollutant load reductions. This paper develops a methodology to address uncertainty by incorporating a margin of safety (MOS) based on three approaches: judgment, standard error of loading characteristics, and uncertainty and variability of loading characteristics. In addition,three pollutant load reduction allocation approaches are compared to assess their impact: equal load, equal percent, and equity standard reductions. These two proposed additions to the TMDL process in Korea are demonstrated for a BOD TMDL development in the Anyangcheon Watershed. The results confirm the importance of incorporating uncertainty into the TMDL process and clearly illustrate the significant differences in TMDL and load allocation produced when using different approaches to estimate the MOS. Further, the comparison of the three load allocation strategies highlights the potential limitations of equal load and equal percent reduction approaches. The use of technical expert and decision maker ranking of factors create an equitable and sustainable load allocation among the sub-watersheds. It can be concluded that incorporating uncertainty and providing an objective load allocation strategy are essential elements needed for future TMDL development in Korea
Observation of Reverse Saturable Absorption of an X-ray Laser
Cho, B. I.,Cho, M. S.,Kim, M.,Chung, H.-K.,Barbrel, B.,Engelhorn, K.,Burian, T.,Chalupský,, J.,Ciricosta, O.,Dakovski, G. L.,Há,jková,, V.,Holmes, M.,Juha, L.,Krzywinski, J.,Lee, R. American Physical Society 2017 Physical Review Letters Vol.119 No.7