Music Perception Abilities of the Hearing Amplification System Users

Jo Sungmin,Yun Jiyeong,Kyong Jeong-Sug,Shin Yerim,Kim Jinsook 대한청각학회 2023 Journal of Audiology & Otology Vol.27 No.2

Background and Objectives: Recently, the improvement of music perception abilities for emotional stability and high quality of life has become important for the hearing loss group. This study aimed to examine and compare the music perception abilities of the normal hearing (NH) and hearing amplification system (HAS) groups to find the needs and methods of music rehabilitation.Subjects and Methods: The data were collected from 15 NH adults (33.1±11.4 years) and 15 HAS adults (38.7±13.4 years), of whom eight wore cochlear implant [CI] systems and seven wore CI and hearing aid systems depending on pitch, melody, rhythm, timbre, emotional reaction, and harmony perception tests. A mismatch negativity test was also conducted, and attitudes toward and satisfaction with listening to music were measured.Results: The correction percentages for the NH and HAS groups were 94.0%±6.1% and 75.3%±23.2% in the pitch test; 94.0%±7.1% and 30.3%±25.9% in the melody test; 99.3%±1.8% and 94.0%± 7.6% in the rhythm test; 78.9%±41.8% and 64.4%±48.9% in the timbre test; 96.7%±10.4% and 81.7%±16.3% in the emotional reaction test; and 85.7%±14.1% and 58.4%±13.9% in the harmony test, respectively, showing statistical significance (<i>p</i><0.05). For the mismatch negativity test, the area of the waveform was smaller in the HAS groups than in the NH groups, with 70 dB of stimulation showing no statistical significance. The response rates for satisfaction with listening to music were 80% and 93.3% for the NH and HAS groups, showing no statistical significance.Conclusions: Although the HAS group showed lower music perception ability than the NH group overall, they showed a strong desire for music listening. Also, the HAS group revealed a higher degree of satisfaction even when listening to unfamiliar music played with unusual instruments. It is suggested that systematic and constant musical rehabilitation based on musical elements and different listening experiences will improve music perception qualities and abilities for HAS users.

WTAP regulates migration and invasion of cholangiocarcinoma cells

Jo, Hong-Jae,Shim, Hye-Eun,Han, Myoung-Eun,Kim, Hyun-Jung,Kim, Ki-Sun,Baek, Sungmin,Choi, Kyung-Un,Hur, Gi-Yeong,Oh, Sae-Ock Springer-Verlag 2013 Journal of gastroenterology Vol.48 No.11

Identification and functional characterization of cereblon as a binding protein for large-conductance calcium-activated potassium channel in rat brain

Jo, Sooyeon,Lee, Kwang-Hee,Song, Sungmin,Jung, Yong-Keun,Park, Chul-Seung Raven Press [etc.] 2005 Journal of neurochemistry Vol.94 No.5

<P>Abstract</P><P>Large-conductance Ca<SUP>2+</SUP>-activated K<SUP>+</SUP> (BK<SUB>Ca</SUB>) channels are activated by membrane depolarization and modulated by intracellular Ca<SUP>2+</SUP>. Here, we report the direct interaction of cereblon (CRBN) with the cytosolic carboxy-terminus of the BK<SUB>Ca</SUB> channel &agr; subunit (Slo). Rat CRBN contained the N-terminal domain of the Lon protease, a ‘regulators of G protein-signaling’ (RGS)-like domain, a leucine zipper (LZ) motif, and four putative protein kinase C (PKC) phosphorylation sites. RNA messages of rat cereblon (rCRBN) were widely distributed in different tissues with especially high-levels of expression in the brain. Direct association of rCRBN with the BK<SUB>Ca</SUB> channel was confirmed by immunoprecipitation in brain lysate, and the two proteins were co-localized in cultured rat hippocampal neurons. Ionic currents evoked by the rSlo channel were dramatically suppressed upon coexpression of rCRBN. rCRBN decreased the formation of the tetrameric rSlo complex thus reducing the surface expression of functional channels. Therefore, we suggest that CRBN may play an important role in assembly and surface expression of functional BK<SUB>Ca</SUB> channels by direct interaction with the cytosolic C-terminus of its &agr;-subunit.</P>

Decreased Hepatic Lactotransferrin Induces Hepatic Steatosis in Chronic Non-Alcoholic Fatty Liver Disease Model

Lee, Sungmin,Son, Beomseok,Jeon, Jaewan,Park, Gaeul,Kim, Hyunwoo,Kang, Hyunkoo,Youn, HyeSook,Jo, Sunmi,Song, Jie-Young,Youn, BuHyun S. Karger AG 2018 Cellular physiology and biochemistry Vol.47 No.6

<P><B><I>Background/Aims:</I></B> Non-alcoholic fatty liver disease (NAFLD) is an emerging metabolic disease. Although it leads to severe hepatic diseases including steatohepatitis, cirrhosis, and hepatic cancer, little is known about therapy to prevent and cure hepatic steatosis, the first step of NAFLD. We conducted this investigation to unveil the mechanism of hepatic steatosis. <B><I>Methods:</I></B> We established a novel chronic NAFLD mouse model through whole body irradiation and verified the model through histological and biochemical analysis. To find molecular mechanism for hepatic steatosis, we analyzed hepatic transcriptomic profiles in this model and selected target molecule. To induce the expression of lactotransferrin (Ltf) and regulate the NAFLD, growth hormone (GH) and coumestrol was introduced to hepatocyte and mice. The universal effect of coumestrol was confirmed by administration of coumestrol to NAFLD mouse model induced by high-fructose, high-fat, and MCD diet. <B><I>Results:</I></B> It was observed that decreased hepatic Ltf expression led to excessive hepatic lipid accumulation in NAFLD mouse. Furthermore, we found that GH was decreased in irradiated mice and functioned as an upstream regulator of Ltf expression. It was observed that GH could stimulate Ltf expression and prevent uptake of dietary lipids in hepatocytes, leading to rescue of NAFLD. Finally, we suggested that coumestrol, a kind of isoflavonoid, could be used as an inducer of hepatic Ltf expression through cooperation with the GH signaling pathway both <I>in vitro</I> and <I>in vivo</I>. <B><I>Conclusions</I></B><I>:</I> Hepatic Ltf prevents hepatic steatosis through inhibition of dietary lipid uptake in radiation-induced NAFLD mouse model. We also suggest coumestrol as a drug candidate for prevention of NAFLD.</P>

35MPa Type 3 수소용기의 파열 현상 연구

조성민(Sungmin, Cho),김창종(Changjong, Kim),유근준(GeunJun, Lyu),조영도(YoungDo, Jo) 한국가스학회 2013 한국가스학회 학술대회논문집 Vol.2013 No.11

시계열 회귀모형에 기초한 욕실 내 용수 사용량 추정

명성민(Sungmin Myoung),김동건(Donggeon Kim),조진남(Jinnam Jo) 한국컴퓨터정보학회 2014 韓國컴퓨터情報學會論文誌 Vol.19 No.8

신뢰성 있는 물 수요예측을 실시하기 위해서는 실측자료를 이용하여 다양한 수요구조의 변화를 합리적으로 반영할 수 있는 수요예측모형을 개발 활용하는 것이 필요하다. 본 연구에서는 가정에서사용하고 있는 욕실 내 용수사용량 특성을 파악하기 위하여 전국 140여개 가구를 대상으로 전자식 유량계와 무선송신시스템이 결합된 원격측정시스템을 이용하여 실측자료를 취득하고, 이를 이용하여 각 사용량의 기준이 되는 원단위를 도출하였다. 향후 사용량 예측을 위하여 욕실 내 용수를 욕조용수와 세면용수로 구분하여 시계열 모형을 적용함으로써 물 수요관리 및 정책수립을 위한 정보로서 활용할 수 있도록 하였다. Analysis of influential factors on water consumption in households will help predicting the water demand of end-use in household and give an explanation to cause on the change of trend. In this research, the data are gathered by radio telemetry system which is combined electronic flow-meter and wireless communication system in 140 household in Korea. Using this data, we estimate for each residential type to determine liter per capita day. we used real data to predict bathtub and washbowl water-uses and compared the ordinary least square regression model and autoregressive regression error model. The results of this study can be applied in the planning stages of water and waste water facilities.

SSD 방법을 이용한 Cut transition 검출 모델

박성민(Sungmin Park),윤의녕(Ui Nyoung Yoon),조근식(Geun-Sik Jo) 한국정보과학회 2020 정보과학회논문지 Vol.47 No.7

샷 경계 검출은 영상 콘텐츠 분석을 위한 필수적인 기술로 꾸준히 연구되고 있다. 본 논문에서는 기존 연구의 단점을 보완하고 Cut transition의 정확한 위치를 찾아내기 위해 SSD(Single Shot Multibox Detector) 방법을 이용한 종단간학습(End-to-End Learning) 모델을 제안한다. 여러 개의 Cut transition을 예측하기 위해 SSD의 다중 스케일 특징 맵(Multi-Scale Feature Map)과 Default box 개념을 적용하였으며, Cut transition의 특징 정보를 강화하기 위해 이미지 비교 방법 중 하나인 Image Concatenation 개념을 모델에 결합하였다. 제안하는 모델은 최신 연구와 비교하여 다시 레이블링을 한 ClipShots 데이터셋과 TRECVID 2007 데이터셋에서 각각 88.7%, 98.0%의 정확도를 보였다. 또한 기존의 딥러닝 모델보다 정답에 가까운 범위를 검출할 수 있었다. Shot boundary detection is constantly being studied as an essential technique for analyzing video content. In this paper, we propose an End-to-End Learning model using the SSD (Single Shot Multibox Detector) method to resolve the shortcomings of the existing research and to identify the exact location of the cut transition. We applied the concept of the Multi-Scale Feature Map and Default box of the SSD to predict multiple cut transitions, and combined the concept of Image Concatenation, one of the image comparison methods, with the model to reinforce the feature information of the cut transitions. The proposed model showed 88.7% and 98.0% accuracy in the re-labeled ClipShots and TRECVID 2007 datasets, respectively, compared to the latest research. Additionally, it detected a range closer to the correct answer than the existing deep learning model.

물 분사를 통한 IR 신호 저감 연구 동향

정성민(Sungmin Jung),조하나(Hana Jo) 한국추진공학회 2018 한국추진공학회 학술대회논문집 Vol.2018 No.12

근래의 군사무기들은 적의 감시망을 피하여 성공적으로 임무를 수행하기 위해 스텔스(Stealth) 기능을 필수로 요한다. RCS를 줄이는 것만큼 IR 신호 억제(suppression)도 스텔스의 중요한 요소이며, 지금까지 다양한 방법이 연구되어 왔다. 그 방법들 가운데 능동적으로 IR 신호를 억제하는 방법으로 엔진과 그 주변, 그리고 배기가스에 물을 직접 분사하는 방법이 효과가 있는 것으로 나타났다. 본 논문에서는 근래 물 분사를 통한 IR 신호 억제 연구가 수행된 군사무기체계를 함정과 항공기 두 분류로 나누고, 그 연구 동향을 알아보았다. Recent military weapons require stealth technology to conduct their mission successfully. In addition to reducing RCS(Radar cross section), suppressing IR signature is also a main component of stealth tech. So far various means have been developed to reduce IR signature, and one of the active ways is water spray applying to engine and its exhaust. Thus this paper deals with previous studies of a water spray method to the weapon system of battle ships and aircrafts.

Antioxidant Activities and ACE inhibitory activity of Protaetia brevitarsis seulensis hydrolysates

Yosub Kim,Sungmin Jo,Tran Khac Hu,Eun Jung Lee,Kihun Sung,Jiwoo Kim,Jae-Sik Ryu,Yujihn Kwon,Inyong Kim,Yoonhwa Jeong 한국식품영양과학회 2019 한국식품영양과학회 학술대회발표집 Vol.2019 No.10

Magnetic anisotropy and uncompensated antiferromagnetic ordering in magnetic van der Waals materials

Muhammad Nauman,Sungmin Lee,Suhan Son,Je-Geun Park,Woun Kang,Younjung Jo 한국자기학회 2020 한국자기학회 학술연구발표회 논문개요집 Vol.30 No.1