Refractive Predictability between Standard and Total Keratometry during the Femtosecond Laser-Assisted Cataract Surgery with Monofocal Intraocular Lens with Enhanced Intermediate Function

Hyunah Lim,Joon Hyuck Jang,Sanghyu Nam,Koeun Lee,Jae Yong Kim,Hungwon Tchah,Hun Lee 대한안과학회 2024 Korean Journal of Ophthalmology Vol.38 No.1

Purpose: We aimed to compare the accuracy of the intraocular lens (IOL) calculation formula using the standard keratometry (K) and total K (TK) during the femtosecond laser-assisted cataract surgery (FLACS) with a monofocal IOL with enhanced intermediate function using currently used formulas. Methods: A retrospective review of 125 eyes from 125 patients who had undergone FLACS with implantation of monofocal IOL with enhanced intermediate function was conducted. The predicted refractive power was calculated using an optical biometer (IOLmaster 700) according to the K and TK in the Barrett Universal II, SRK/T, Haigis, and Holladay 2 formulas. Absolute prediction error (APE) obtained from the actual postoperative refractive outcomes and the refractive error predicted in each formula was compared one month after surgery. Results: Mean APE ranged between 0.29 and 0.39 diopters (D) regardless of the calculation formula and the method of measuring corneal curvature. Significant differences were observed in the APE from the four formulas and the two keratometric measurements (p = 0.014). In a total of 125 eyes from 125 patients, the mean APE was lowest with the Barrett Universal II formula. Across all formulas, both the mean APE and the median APE tended to be lower for K than for TK, although there was no significant difference. Approximately 70% to 80% of the patients were included within 0.5 D of the refractive error across all formulas. The percentage of eyes within 0.5 D of APE outcomes was not statistically different between the K and TK data when using each formula. Conclusions: Keratometric measurements considering the poster corneal curvature did not show any additional advantages when implanting the monofocal IOL with enhanced intermediate function during the FLACS.

Ru-MOCVD를 위한 TaSiN막 표면의 ECR 플라즈마 및 Pd 스퍼터링 전처리 세정효과에 관한 연구

임종민,박현아,엄태종,이종무 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.5

Pretreatment of the underlying film surface is essential in molecular organic chemical vapor deposition (MOCVD) of metals. Effects of surface treatment techniques including Ar plasma, H_(2) plasma, and Pd sputtering treatments of the underlying TaSiN film surface on the Ru nucleation density in Ru-MOCVD were compared with each other. According to the scanning electron microscopy (SEM) and Auger electron emission spectrometry (AES) analysis results Pd sputtering was found to be most efficient in enhancing Ru nucleation. Thin Pd buffer layer formed on the TaSiN film by sputtering offers catalytic surface for easier nucleation of Ru. On the other hand hydrogen plasma treatment enhances Ru nucleation by removing oxygen and nitrogen atoms at the TaSiN film surface. In contrast Ar plasma treatment removes not only oxygen and nitrogen atoms but also Ta atoms. Pd sputtering seems to be the best of these three pretreatment techniques for Ru-MOCVD. (Received December 22, 2003)

2020년 충남지역 집단급식소에서 발생한 대형 식중독의 사례 보고

이현아(Hyunah Lee),김준영(Junyoung Kim),남해성(Hae-Sung Nam),최지혜(Jihye Choi),이다연(Dayeon Lee),박성민(Seongmin Park),임지애(Ji-Ae Lim),천영희(Younghee Cheon),최진하(Jinha Cho),박준혁(Junhyuk Park) 한국환경보건학회 2020 한국환경보건학회지 Vol.46 No.5

Objectives: This study was performed to identify the epidemiological features of a food poisoning outbreak in a company cafeteria located in Chungcheongnam-do Province, Korea in June of 2020 and to suggest preventive measures for a similar incidence. Methods: A total of 84 patients with acute gastroenteritis were examined. Environmental samples were obtained from 16 food handlers, six food utensils, 135 preserved foods served over three days and nine menus, and six drinking water samples. These are analyzed to detect viruses and bacteria. Results: Ninety-four out of the 402 people who were served meals (23.4%) predominantly showed symptoms of diarrhea, and the number was over 3 times. Among the 84 patients under investigation, 17 cases (20.2%) were positive for Enteropathogenic E. coli (EPEC) and 18 cases were positive for Clostridium (C.) perfringens (21.4%). Based on the investigation, it was concluded that the main pathogens were EPEC and C. perfringens. For EPEC, it was detected in three of the food service employees and in the preserved food and curry rice. The results of pulsed field gel electrophoresis indicate that all EPEC cases are closely related except for one food service employee. Assuming that isolated EPEC originated from the preserved food, the incubation period is about 25 hours. The origin of the C. perfringens was not determined as it was not detected in the food service employees or environmental samples. Conclusions: This case suggests that food provided in group food service centers must be thoroughly managed. In addition, identifying the pathogens in preserved food is very important for tracing the causes of food poisoning, so food must be preserved in an appropriate condition. To prevent similar food poisoning cases, analyzing cases based on epidemiological investigation and sharing the results is needed.

유아 어머니의 심리·행동통제와 자녀 정서조절 간의 관계에서 어머니 정서표현의 매개효과

임효신(Lim hyoshin),서현아(Seo hyunah) 학습자중심교과교육학회 2020 학습자중심교과교육연구 Vol.20 No.1

본 연구는 유아의 어머니의 심리·행동통제와 자녀 정서조절 간의 관계에서 어머니 정서표현의 매개효과를 알아보기 위한 목적으로 실시되었다. 이를 위해 P시에 소재한 유치원 6곳과 어린이집 10곳에 재원중인 242명의 유아와 어머니를 대상으로 자료를 수집하였고, 수집된 자료로 회귀매개분석을 실시하였다. 주요 연구결과는 다음과 같다. 먼저 어머니 심리통제는 낮을수록 정서표현성은 높아지고, 행동통제가 높을수록 정서표현성이 높아졌다. 다음으로 어머니 심리통제와 행동통제는 정서조절능력에 유의한 영향을 주는 것으로 나타났다. 어머니 정서표현성은 정서조절능력에 유의한 영향을 주는 것으로 나타났다. 이러한 결과를 통하여 심리통제와 정서조절능력 간의 관계에서 정서표현성은 완전매개효과를 나타내고, 행동통제와 정서조절능력 간의 관계에서 정서표현성에서도 정서표현성은 완전매개효과를 나타내었다. The purpose of this study was to examine the mediating effect of maternal emotional display on the relationship between maternal psychological·behavioral control and young children s emotional regulation. Data were gathered from 242 preschoolers and their mothers in six kindergartens and 10 daycare centers that were located in an urban community. The collected data were analyzed by making a mediated regression analysis. The major findings of the study were as follows: First of all, emotional expressivity became better when there was less maternal psychological control, and emotional expressivity became better when there was more behavioral control. Next, maternal psychological control and behavioral control were found to have exerted a significant influence on emotional regulation skills. Maternal emotional expressivity was found to have exercised a significant influence on emotional regulation skills. The findings of the study illustrated that emotional expressivity had a perfect mediating effect on the relationship between psychological control and emotional regulation skills, and that emotional expressivity had a perfect mediating effect on the relationship between behavioral control and emotional regulation skills as well.

Isolation and Characterization of Probiotic Bacillus subtilis 1-1 Possessing L-Asparaginase Activity from Soybean Fermented Food

Hyeji Lim,Jina Choi,Huiyeong Seong,Hyunah Jang,Jiwon Yoon,Min-Ji Kim,Soo-Jeong Lee,Sungryul Yu,Youngseung Lee,Yoonhwa Jeong,Misook Kim 한국식품영양과학회 2019 한국식품영양과학회 학술대회발표집 Vol.2019 No.10

Three-Dimensional Nanostructured Indium-Tin-Oxide Electrodes for Enhanced Performance of Bulk Heterojunction Organic Solar Cells

Kwon, Hyunah,Ham, Juyoung,Kim, Dong Yeong,Oh, Seung Jae,Lee, Subin,Oh, Sang Ho,Schubert, E. Fred,Lim, Kyung-Geun,Lee, Tae-Woo,Kim, Sungjun,Lee, Jong-Lam,Kim, Jong Kyu Wiley Blackwell (John Wiley Sons) 2014 ADVANCED ENERGY MATERIALS Vol.4 No.7

<P>A three-dimensional indium tin oxide (ITO) nanohelix (NH) array is presented as a multifunctional electrode for bulk heterojunction organic solar cells for simultaneously improving light absorption and charge transport from the active region to the anode. It is shown that the ITO NH array, which is easily fabricated using an oblique-angle-deposition technique, acts as an effective antireflection coating as well as a light-scattering layer, resulting in much enhanced light harvesting. Furthermore, the larger interfacial area between the electrode and the active layer, together with the enhanced carrier mobility through highly conductive ITO NH facilitate transport and collection of charge carriers. The optical and electrical improvements enabled by the ITO NH electrode result in a 10% increase in short-circuit current density and power-conversion efficiency of the solar cells.</P>

Improved Quality Characteristics of Potato Garaetteok Fermented by Bacillus subtilis and Leuconostoc mesenteroides

Hyeji Lim,Sujin Oh,Hyunah Jang,Sungryul Yu,Youngseung Lee,Yoonhwa Jeong,Misook Kim 한국식품영양과학회 2018 한국식품영양과학회 학술대회발표집 Vol.2018 No.10

유아 부모의 결혼만족도와 자녀 문제행동 간의 관계에서 삶의 의미의 매개효과

임효신 ( Hyoshin Lim ),서현아 ( Hyunah Seo ) 사단법인 아시아문화학술원 2021 인문사회 21 Vol.12 No.3

본 연구는 유아 부모의 결혼만족도와 자녀 문제행동, 삶의 의미 간의 관계를 알아보고, 유아 부모의 결혼만족도와 자녀 문제행동과의 관계에서 삶의 의미가 매개역할을 하는지 확인하는데 목적이 있다. 연구 목적의 실현을 위하여 P시에 소재한 유치원 4곳과 어린이집 6곳의 기관에 재원중인 만3-5세 유아 부모와 자녀 282명을 대상으로 결혼만족도, 삶의 의미, 문제행동을 측정하였다. 조사는 2020년 8월 4주에 실시하였으며 관련 자료는 상관분석, 매개효과 분석을 실시하였다. 그 결과를 살펴보면, 먼저 유아 부모의 결혼만족도와 삶의 의미에 영향을 미치는 것으로 나타났다. 그리고 유아 부모의 결혼만족도와 자녀 문제행동에 영향을 미치는 것으로 나타났으며, 유아 부모의 삶의 의미와 유아 문제행동에 영향을 미치는 것으로 나타났다. 한편, 유아 부모의 결혼만족도와 유아 문제행동간의 관계에서 삶의 의미는 부분매개역할을 나타내고 있었다. The purpose of this study is to investigate the relationship between marriage satisfaction, child problem behavior, and meaning of life of infant parents, and to determine whether the meaning of life plays a mediating role in the relationship between marriage satisfaction and child problem behavior of infant parents. In order to realize the purpose of the study, marriage satisfaction, meaning of life, and problem behavior were measured for 282 parents and children aged 3-5 years old who are enrolled in 4 kindergartens and 6 daycare centers located in P city. The survey was conducted on the 4th week of August 2020, and related data were analyzed for correlation and mediating effect. The results are as follows. First, it was found that it had an effect on the marriage satisfaction and the meaning of life of infants parents. Second, it was found that it had an effect on the marriage satisfaction of infants parents and their children’s problem behavior. Third, it was found that it had an effect on the meaning of life and problem behavior of infants parents. On the other hand, the meaning of life in the relationship between marriage satisfaction and problem behavior of infants parents showed a partial mediating role.

Reversible phase modulation and hydrogen storage in multivalent VO₂ epitaxial thin films

Yoon, Hyojin,Choi, Minseok,Lim, Tae-Won,Kwon, Hyunah,Ihm, Kyuwook,Kim, Jong Kyu,Choi, Si-Young,Son, Junwoo Nature Publishing Group 2016 NATURE MATERIALS Vol.15 No.10

<P>Hydrogen, the smallest and the lightest atomic element, is reversibly incorporated into interstitial sites in vanadium dioxide (VO2), a correlated oxide with a 3d(1) electronic configuration, and induces electronic phase modulation. It is widely reported that low hydrogen concentrations stabilize the metallic phase, but the understanding of hydrogen in the high doping regime is limited. Here, we demonstrate that as many as two hydrogen atoms can be incorporated into each VO2 unit cell, and that hydrogen is reversibly absorbed into, and released from, VO2 without destroying its lattice framework. This hydrogenation process allows us to elucidate electronic phase modulation of vanadium oxyhydride, demonstrating two-step insulator (VO2)-metal (HxVO2)-insulator (HVO2) phase modulation during inter-integer d-band filling. Our finding suggests the possibility of reversible and dynamic control of topotactic phase modulation in VO2 and opens up the potential application in proton-based Mottronics and novel hydrogen storage.</P>

전문가정위탁 부모의 양육 경험

장혜림(Chang, Hae-Lim),정익중(Chung, Ick-Joong),강현아(Kang, Hyunah),신지현(Shin, Jihyun),이화조(Lee, Hwajo) 한국아동복지학회 2021 한국아동복지학 Vol.70 No.2

본 연구의 목적은 전문가정위탁부모를 대상으로 양육 경험을 심층적으로 규명하고 당사자의 목소리로 한국적 현실에 적합한 전문가정위탁의 실현가능성을 탐색하는 것이다. 시범사업에 참여한 전문가정위탁부모를 대상으로 전문가정위탁 부모의 양육 경험을 위탁 시작 동기, 위탁 양육 과정, 위탁 종결 과정 3개의 시점으로 구분한, 총 6개의 주제가 도출되었다. 위탁부모의 시작 동기는 ‘아동에 관한 사랑과 일반위탁의 경험이 전문위탁으로 이끎’, 위탁 양육 과정은 ‘알을 깨고 나오기’, ‘진정한 부모가 되어가기’, 위탁종결 과정은 ‘일반위탁과는 달랐던 전문가정위탁 경험’, ‘종결을 준비하며 느끼는 복잡스러운 감정’, ‘전문가정위탁 정착을 위한 필요 지원’등이다. 마지막으로 이 결과에 기반하여 아동복지 실천적 및 정책적 함의에 대해 논의하였다. The purpose of this study was to delve deeply into the experience of parenting among specialized foster parents and to explore the suitability of specialized foster care to the Korean reality from the perspective of the persons concerned. Eight specialized foster parents participated in this pilot project. Six themes were drawn from the following three points in time: motivations for specialized foster care, the foster care process, and the end of foster care. Motivations for specialized foster care included “love for children and experience of general foster care led to specialized foster care.” The foster care process consisted of “breaking the mold” and “becoming a true parent.” The end of foster care consisted of “experience of specialized foster care, which was different from general foster care,” “complex feelings in preparing for the end,” and “required support for specialized foster care.” Based on these results, practice and policy implications for child welfare were discussed.