임상 치과위생사의 감성지능과 자기효능감이 혁신행동에 미치는 영향

최미현,민희홍,Choi, Mi-Hyun,Min, Hee-Hong 한국치위생학회 2020 한국치위생학회지 Vol.20 No.2

Objectives: The aim of this study was to identify causal factors for continuous innovative behavior and devise a plan for effective member management by improving continuous innovative behavior. Methods: A self-reported questionnaire was filled out by 190 clinical dental hygienists from June 1 to July 31, 2019. Data were analyzed using SPSS 22.0. The independent t-test, one-way analysis of variance, Scheffe's post-hoc test, and Pearson's correlation coefficient analysis were performed, and a stepwise multiple regression analysis was conducted. Results: Dental hygienists scored 3.43 points in innovative behavior. Variables influencing innovative behavior were emotional intelligence, self-efficacy, and educational level. These factors had a variance of 47.5% among clinical dental hygienists. Conclusions: It is necessary to develop a regular program aimed at improving the emotional intelligence and self-efficacy of clinical dental hygienists to exert a positive work effect and improve their innovative behavior rather than assigning them simple tasks.

물체의 무게에 따른 팔 운동 시 나타나는 뇌 활성화 영역에 대한 연구

최미현(Mi-Hyun Choi) 대한인간공학회 2019 대한인간공학회 학술대회논문집 Vol.2019 No.10

A study on functional connectivity caused by acute stress

Mi-Hyun Choi(최미현) 대한인간공학회 2023 대한인간공학회 학술대회논문집 Vol.2023 No.5

고농도 산소 공급량 변화에 따른 심박동율의 성별 차이

최미현(Mi?Hyun Choi),김지혜(Ji?Hye Kim),이수정(Su?Jeong Lee),양재웅(Jae?Woong Yang),최진승(Jin?Seung Choi),탁계래(Gye?Rae Tack),이태수(Tae?Soo Lee),민병찬(Byung?Chan Min),정순철(Soon?Cheol Chung) 대한인간공학회 2010 大韓人間工學會誌 Vol.29 No.2

The purpose of this study was to examine differences between male and female in heart rate due to 93% oxygen administration of the three levels (1L/min, 3L/min, and 5L/min). Ten healthy male (25.0±1.8years) and ten female (23.7±1.9years) college students were selected as the subjects for this study. The experiment consisted of three runs, i.e., the three levels of 93% oxygen administration, respectively. The each run consisted of three phases, i.e., Rest 1 (5min), Hyperoxia (10min), and Rest 2 (5min). Heart rate was measured throughout the three phases. Heart rate was decreased during hyperoxia compared to Rest 1 and 2. By increasing the supply rate of highly concentrated oxygen, △1 (decreasing rate of heart rate during hyperoxia compared to Rest 1) was increased. And △2 (decreasing rate of heart rate during hyperoxia compared to Rest 2) of male was lower than female, regardless of supply rate.

청귤의 유효성분 분석

최미현(Mi-Hyun Choi),김경희(Kyoung-Hee Kim),육홍선(Hong-Sun Yook) 한국식품영양과학회 2019 한국식품영양과학회지 Vol.48 No.5

본 연구에서는 청귤을 착즙액, 착즙박, 원물의 형태로 처리한 후 이화학적 특성을 비교 분석하여 산업 원료 소재로서 청귤의 기초자료를 제시하고자 하였다. 수분 함량은 착즙박(15.93%)> 착즙액(14.45%)> 청귤(10.98%)의 순서로 나타났다. 조회분 함량은 착즙액(4.28%)> 착즙박(3.61%)> 청귤(2.90%)의 순서로, 조단백 함량은 청귤(13.31%)> 착즙액(12.90%)> 착즙박(10.42%)의 순서로, 조지방 함량은 청귤(1.83%)> 착즙액(0.99%)> 착즙박(0.59%)의 순서로 나타났다. pH는 착즙박(3.84)에서 가장 높은 수치를 나타내었고 착즙액(3.00)이 유의적으로 낮았으며, 산도는 청귤 착즙액(0.64%)이 가장 높았고 청귤 착즙박(0.21%)이 가장 낮게 나타났다. 유리당은 fructose, glucose, sucrose가 검출되었고 maltose는 검출되지 않았으며 착즙액에서 함량이 가장 높았다. Pectin 함량은 시료 중 청귤(177.71 ㎎/g)> 착즙박(167.52 ㎎/g)> 착즙액(119.72 ㎎/g)의 순서로 나타났으며, cellulose 함량은 청귤(117.29 ㎎/g)> 착즙박(114.52 ㎎/g)> 착즙액(107.05 ㎎/g)의 순서로 나타났다. 주요 구성 아미노산으로서 aspartic acid, glutamic acid, serine, proline, alanine, leucine, lysine이 존재하였으며 주요 유리 아미노산으로서 asparagine, aspartic acid, glutamic acid, serine이 존재하였다. 무기질 함량은 착즙액(1,897.13 ㎎%)> 청귤(1,706.10 ㎎%)> 착즙박(1,642.10 ㎎%)으로 착즙액이 가장 높았다. Naringin 함량 측정 결과 청귤 착즙액(32.09 ㎎/g)> 청귤(31.13 ㎎/g)> 착즙박(22.32 ㎎/g)의 순서로 나타났으며, hesperidin 함량 또한 청귤 착즙액(10.69 ㎎/g)> 청귤(10.52 ㎎/g)> 착즙박(7.39 ㎎/g)으로 유사한 경향을 나타났다. 비타민 C 함량은 청귤 착즙액(19.58 ㎎%)> 청귤(13.75 ㎎%)> 착즙박(11.82 ㎎%)의 순서로 나타났으며 모든 시료에서 유의적 차이가 존재하였다. 이상의 연구 결과를 종합하면 청귤 부산물은 유리당, 식이섬유, 각종 아미노산, 무기질, 높은 flavonoid 함량을 나타내었으므로, 가공식품의 첨가물, 건강 기능성 식품 등의 산업적 활용성을 지니는 것으로 생각된다. This study was conducted to compare the physicochemical characteristics of premature mandarin pressed juice (PMPJ), premature mandarin pressed cake (PMPC), and whole premature mandarin (WPM) and to investigate the feasibility of using premature mandarin as an industrial raw material. The moisture content of the premature mandarin was PMPC (15.93%) > PMPJ (14.45%) > WPM (10.98%), the crude ash content was PMPJ (4.28%) > PMPC (3.61%) > WPM (2.90%), the crude protein content was WPM (13.31%) > PMPJ (12.90%) > PMPC (10.42%), and the crude fat content was WPM (1.83%) > PMPJ (0.99%) > PMPC (0.59%). The pH was highest in PMPC (3.84) and significantly lower (3.00) in PMPJ. Acidity was highest in PMPJ (0.64%) and lowest in PMPC (0.21%). Fructose, glucose, and sucrose were detected, but maltose was not. The free sugar content was highest in PMPJ. The pectin content was WPM (177.71 ㎎/g) > PMPC (167.52 ㎎/g) > PMPJ (119.72 ㎎/g) and the cellulose content was in WPM (117.29 ㎎/g) > PMPC (114.52 ㎎/g) > PMPJ (107.05 ㎎/g). Aspartic acid, glutamic acid, serine, proline, alanine, leucine, and lysine were the major amino acids present, while asparagine, aspartic acid, glutamic acid, and serine were major free amino acids. The total mineral contents were PMPJ (1,897.13 ㎎%) > WPM (1,706.10 ㎎%) > PMPC (1,642.10 ㎎%). The naringin and hesperidin contents were in the order of PMPJ > WPM > PMP and the vitamin C content was PMPJ (19.58 ㎎%) > WPM (13.75 ㎎%) > PMPC (11.82 ㎎%).

『태산요론(胎産要論)』과 『언해태산집요(諺解胎産集要)』의 관련성 고찰

최미현 ( Mi Hyun Choi ) 한말연구학회 2010 한말연구 Vol.- No.26

소수성 인공수정체와 친수성 인공수정체의 Nd:YAG 레이저 후낭 절개술 시행률 비교

최미현(Mi hyun Choi),김선영(Sun Young Kim),이미연(Mee Yon Lee),이영춘(Young Chun Lee),김수영(Su Young Kim) 대한안과학회 2016 대한안과학회지 Vol.57 No.7

목적: 백내장 수술 시 흔히 사용되는 소수성 구면 인공수정체와 친수성 구면 인공수정체의 수술 후 Nd:YAG 레이저 후낭 절개술 시행률을 비교하고자 한다. 대상과 방법: 2006년 7월 1일부터 2009년 12월 31일까지 한 명의 술자에 의해 시행된 노년성 백내장 수술 후 소수성 구면 인공수정체인 SA60AT (Alcon, Fort Worth, TX, USA)를 삽입한 268안과 친수성 구면 인공수정체인 I-FLEX (I-Medical??, Ophthalmic International Heidelberg GmbH, Mannheim, Germany)를 삽입한 331안을 수술 후 2년간의 Nd:YAG 레이저 후낭 절개술 시행률 및 레이저 후낭절개술 전후의 최대 교정시력을 후향적으로 비교하였다. 결과: 추적 기간은 SA60AT 인공수정체를 삽입한 군에서 평균 23.5개월, I-FLEX 인공수정체를 삽입한 군에서 평균 22.6개월로 SA60AT 인공수정체군에서 더 길었다(p=0.035). 연령은 각각 평균 68.6세와 70.3세로 두 군 사이에 유의한 차이가 없었다(p=0.367). 소수성 인공수정체군은 268안 중 17안(6.3%)에서, 친수성 인공수정체군은 331안 중 37안(11.2%)에서 레이저 후낭절개술을 시행하였으며 통계적으로 유의한 차이를 보였다(p=0.020). 레이저 후낭 절개술 전후의 최대 교정 시력은 두 군 간의 차이를 보이지 않았다. 결론: 친수성 구면 인공수정체에서 소수성 구면 인공수정체보다 Nd:YAG 레이저 후낭절개술 시행률이 높았다. 그 이유는 소수성 아크릴 인공수정체의 생체유착적 성질로 인해 후낭과 인공수정체가 유착함으로써 수정체 상피세포의 이동을 막아 후낭혼탁을 덜 유발하는 것으로 생각된다. 〈대한안과학회지 2016;57(7):1063-1070〉 Purpose: To compare neodymium-doped yttrium aluminum garnet (Nd:YAG) laser capsulotomy rates between hydrophobic and hydrophilic intraocular lenses. Methods: The present retrospective study enrolled patients who received cataract surgery from a single surgeon between July 2006 to December 2009. Patients included in the study were implanted with SA60AT hydrophobic spherical intraocular lenses (Alcon, Fort Worth, TX, USA, 268 eyes) or I-FLEX hydrophilic spheric intraocular lenses (i-Medical??, Ophthalmic International Heidelberg GmbH, Mannheim, Germany, 331 eyes). The Nd:YAG capsulotomy rates and best-corrected visual acuity (BCVA) were compared between the two groups for 2 years after the operation. Results: The mean follow-up period was 23.5 months and 22.6 months and the mean age was 68.6 years and 70.3 years in the SA60AT and I-FLEX groups, respectively. Follow-up periods were longer in the SA60AT group (p = 0.035), but ages were not significantly different between the two groups (p = 0.367). Nd:YAG laser capsulotomy rates were 6.3% in the SA60AT group and 11.2% in the I-FLEX group. Nd:YAG laser capsulotomy rates were significantly higher in the I-FLEX group (p = 0.020). BCVA before and after the Nd:YAG laser capsulotomy was not significantly different. Conclusions: Nd:YAG laser capsulotomy rates were higher in the I-FLEX hydrophilic spheric intraocular lens group than in the SA60AT hydrophilic spheric intraocular lens group. Adhesion between capsular bag and intraocular lens by bioadhesive character of hydrophobic acryl intraocular lens may contribute to the prevention of lens epithelial migration and posterior capsule opacification. J Korean Ophthalmol Soc 2016;57(7):1063-1070

학령 전 다문화가정 아동과 일반가정 아동의 격조사와 보조사 산출

최미현(Mi-hyun Choi),정미란(Mi-ran Jeong),황민아(Mina Hwang) 한국언어청각임상학회 2012 Communication Sciences and Disorders Vol.17 No.2

배경 및 목적: 학령전 다문화가정 아동이 한국어의 대표적인 문법형태소인 조사를 습득, 발달시켜가는 과정에서 보이는 특성을 살펴보기 위하여 학령전 다문화가정 아동과 일반가정 아동의 조사 산출 능력을 비교하였다. 방법: 학령전 다문화가정 아동과 일반가정 아동 각각 20명씩 총 40명을 대상으로 주격조사 ‘-이/가’, 목적격조사 ‘-를’, 부사격조사/처소 ‘-에서’, 부사격조사/도구 ‘-(으)로’, 부사격조사/수여 ‘-한테’, 보조사 ‘-도’, ‘-는’, ‘-만’ 산출 능력의 집단 간 차이를 비교하기 위하여 격조사 5개의 조합과 보조사 3개의 조합에 대해 각각 다변량분석을 실시하였다. 결과: 다문화가정 아동은 일반가정 아동에 비하여 격조사 산출의 수행력이 유의하게 낮았으며, 보조사 산출의 수행력 역시 유의하게 낮았다. 논의 및 결론: 다문화가정 아동은 표준화된 언어 선별검사에서 정상발달 범주에 속하는 것으로 평가되었지만 생활연령이 유사한 일반가정 아동과 비교하여 조사 산출 수행력이 유의하게 낮았다. 다문화 가정 아동의 언어발달과 관련하여 초기의 문화적, 언어적 환경의 중요성에 대해 논의하였다. Background & Objectives: In the present study, the production of case particles and semantic particles of children from multi-cultural families (MCF) and non-multicultural families (NMF) was investigated. Methods: Forty children aged 4 to 5 years participated in the present study: 20 children from MCF and 20 children from NMF. The children were of the same chronological age and language age according to the standardized screening test. Twenty-four pairs of pictures were used to elicit five types of predetermined case particles, ‘i/ga’, ‘lul’, ‘ro’, ‘eseo’ ‘hante,’ and three semantic particles, ‘do’, ‘nun’, ‘man.’ The two pictures of a pair were designed to elicit two sentences with the same structure. After the investigator described one picture of a pair, the children were asked to describe the other. For the data analysis, two multivariate analyses of variance (MANOVA) were performed to explore group differences across the five case particles and three semantic particles. Results: The MANOVA of the five case particles revealed a significant effect between groups, with the children from MCF showing inferior performance for the combined dependent variables than the children from NMF, while the MANOVA of the three semantic particles revealed a significant effect between groups, with the children from MCF showing inferior performance for the combined dependent variables than the children from NMF. Discussion & Conclusion: The children from MCF produced fewer case particles and semantic particles than the children from NMF, although they showed similar scores on the standardized test. Implications for cultural factors unique to MCF are discussed in the present study.

청귤의 항산화 및 항균 활성

최미현(Mi-Hyun Choi),김경희(Kyoung-Hee Kim),육홍선(Hong-Sun Yook) 한국식품영양과학회 2019 한국식품영양과학회지 Vol.48 No.6

본 연구에서는 청귤을 착즙한 후 생성되는 착즙액, 착즙박, 착즙하지 않은 원물의 형태로 처리한 후 이들의 항산화 및 항균 활성을 비교 분석하였다. 총 폴리페놀 측정 결과 청귤(12.70 GAE ㎎/g), 청귤 착즙액(12.39 GAE ㎎/g), 청귤착즙박(12.36 GAE ㎎/g)의 순서로 나타났다. DPPH 라디칼 및 ABTS 라디칼 소거 활성 측정 결과, 청귤, 착즙액, 착즙박의 순서로 나타났으며, 모든 시료에서 유의적인 차이가 존재하였다. FRAP 측정 결과 1 ㎎/mL 농도에서 청귤착즙액의 FRAP value(0.66 ㎜/g)가 가장 높았고 나머지 시료에서는 유의적 차이가 존재하지 않았다. 항균 활성을 측정한 결과 5 ㎎/disc의 농도에서 청귤 착즙액이 B. subtilis를 제외한 모든 균주에 대해 항균력을 나타내었고, 10 ㎎/disc 농도에서 모든 시료는 활성을 나타내었으며 청귤착즙액이 B. cereus에 대해 16 ㎜, P. aeruginosa에 대해 15 ㎜로 가장 큰 항균 활성을 나타내었다. Tyrosinase 저해 활성을 측정한 결과 청귤 착즙액, 착즙박, 청귤은 각각 59.15%, 60.92%, 65.58%로 나타났다. Elastase 저해 활성을 측정한 결과 청귤 착즙액, 착즙박, 청귤은 각각 72.79%, 60.24%, 66.16%로 주름 개선 효과를 나타내었다. 이상의 연구 결과 청귤 착즙액 및 착즙박, 청귤은 우수한 항산화 활성을 가지고 있으며, tyrosinase 및 elastase 저해 효과가 우수하여 건강기능식품, 화장품 관련 산업적 개발 가능성이 있을 것으로 사료된다. This study compared the antioxidant and antibacterial activity of premature mandarin juice (PMJ), premature mandarin peel (PMP), and premature mandarin fruit (PMF). The total phenol contents were 12.36∼12.70 gallic acid equivalents ㎎/g. The IC50 values of the 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity were in the order of PMF (2.37 ㎎/mL), PMJ (2.58 ㎎/mL), and PMP (3.06 ㎎/mL). The IC50 values of the 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonate) radical scavenging activity were in the order of PMF (5.91 ㎎/mL), PMJ (6.58 ㎎/mL), and PMP (9.74 ㎎/mL). The ferric reducing antioxidant power value (1 ㎎/mL) was highest in the PMJ (0.66 mM/g) without significant differences in the other samples. As a result of the antimicrobial activity measurement, PMJ exhibited antimicrobial activity against Bacillus cereus, Staphylococcus aureus, Enterobacter cloacae, Escherichia coli, Salmonella enterica, and Pseudomonas aeruginosa but not Bacillus subtilis at a concentration of 5 ㎎/disc, and showed the highest antimicrobial activity with 16 mm for B. cereus and 15 mm for P. aeruginosa at a concentration of 10 ㎎/disc. The tyrosinase inhibition activity values (1 ㎎/mL) of PMJ, PMP, and PMF were 59.15%, 60.92%, and 65.58%, respectively. At the same concentration, the elastase inhibition activity values of PMJ, PMP, and PMF were 72.79%, 60.24%, 66.16%, respectively. Therefore, premature mandarin is a potential industrial raw material for health functional foods and cosmetics.

진료실 안전사고에 의한 치과위생사의 외상 경험 실태 및 예방 실천에 관한 연구

최미현 ( Mi Hyun Choi ),배현숙 ( Hyun Sook Bae ) 한국치위생과학회 2015 치위생과학회지 Vol.15 No.6

The purpose of this study was to examine the actual state of injuries experience and safety accident prevention in dental hygienists. This study surveyed the actual state of injuries experience caused by apparatus and materials through a self-administered survey of 366 dental hygienists. Statistical analysis was performed using PASW Statistics 18.0. Frequency, chi-square test, t-test, one-way ANOVA were applied in this analysis. The results were as follows: Out of the 307 subjects (83.9%) experienced injuries in the last 6 months, and 294 subjects (80.3%) chose the stab as the most frequent type of injuries experience and it was followed by incised wound, scratch and burn. In relation to the differences in injuries experience depending on general characteristics, there were significant differences depending on the age, career, position, dental treatment (p< 0.001) and the education (p<0.01). In relation to the differences in the level of safety accident prevention practice depending on general characteristics, there were significant differences depending on the injuries experience, age (p<0.05) and the types of dental clinics (p<0.01). Therefore, We suggest to establish a systematic process for safety accident prevention in dental clinics and emphasize the importance of prevention through continued safety education be needed.