Cell Surface Properties and Biofilm Formation of Pathogenic Bacteria

최나영,배영민,이선영 한국식품과학회 2015 Food Science and Biotechnology Vol.24 No.6

Cell surface properties of slime production, cell hydrophobicity (CH), colony spreading, auto-aggregation, and biofilm formation (BF) of pathogens were investigated. Staphylococcus aureus, Pseudomonas aeruginosa, and Listeria monocytogenes generally formed strong biofilms and were positive slime producers. The extracellular polymeric substances isolated from agar-grown biofilms of Bacillus cereus and P. aeruginosa contained a high proportion of carbohydrates, proteins, and extracellular DNA. High levels of CH were observed for all pathogens when hydrocarbons were combined with ammonium sulfate (AS). Levels of hydrophobicity based on bacterial adhesion to hydrocarbons using nonane with AS were positively correlated with hydrophobic interaction chromatography assay and contact-angle measurement results. BF and CH values of all pathogens, except E. coli O157:H7 and B. cereus, were highly correlated. Levels of pathogen hydrophobicity differed depending on the measurement method. Factors affecting BF were different depending upon the pathogen.

중년 여성의 성희롱, 성폭력 대처를 위한 성교육 프로그램의 적용 효과

최나영 사단법인 인문사회과학기술융합학회 2019 예술인문사회융합멀티미디어논문지 Vol.9 No.4

본 연구의 목적은 중년 여성의 성희롱, 성폭력의 대처에 대한 성교육 프로그램을 적용하여 성교육, 성지식 및 자기효능감의 효과를 확인하고자 함이다. 연구대상자는 G시 소재 중년 여성 중에 연구의 목적을 이해하고 자발적으로 연구 참여에 동의하여 서명한 자로 하였다. 성교육 프로그램의 진행 중에 탈락한 경우를 제외하고 실험군 31명, 대조군 33명을 대상자로 총 64명의 자료를 분석하였다. 자료 분석은 SPSS/WIN 22.0 program을 이용하여 대상자의 일반적 특성은 빈도, 백분율, 평균과 표준편차를 이용하였다. 실험군과 대조군의 변수인 성지식, 성태도 및 자기효능감의 사전․사후 검정은 t-test를 이용하여 분석하였다. 중년 여성의 성희롱, 성폭력의 대처에 대한 성교육 프로그램 중재 후 실험군의 성지식과 성태도는 대조군에 비하여 유의하게 증가하였다. 그러므로 본 연구는 성희롱, 성폭력의 대처에 대한 성교육 프로그램의 적용 시도로 중년 여성의 성희롱, 성폭력의 대처를 위한 성지식과 성태도의 향상에 기여할 수 있는 교육프로그램을 마련하였다는 데 큰 의의가 있다. The purpose of this study was to develop an sex education program of sex harassment and sex violence for middle-aged women in G-si and verify its application effectiveness on the subjects’ sex knowledge, sex attitude and self-efficacy. This research was conducted using a nonequivalent control group pretest-posttest design. Participants were 64 women in G-si of experimental group and control group with voluntary participation and permission from women. The sex education program of sex harassment and violence was provided for 4weeks(9 sessions). All Data analyzed general characteristics, sex knowledge, sex attitude and self-efficacy using the t-test with the SPSS/WIN22.0 program. Results show that the sex education program of sex harassment and sex violence for middle-aged women in G-si were significantly better for improving sex knowledge and sex attitude in experimental group compared to the control group. Therefore, application effectiveness of sex education program of sex harassment and sex violence was suitable education program of improving sex knowledge and sex attitude for middle-aged women.

중년 여성의 갱년기 증상, 폐경 지식 및 대처정도와의 관계

최나영 사단법인 인문사회과학기술융합학회 2017 예술인문사회융합멀티미디어논문지 Vol.7 No.4

본 연구는 중년 여성의 갱년기 증상, 폐경 지식과 대처 정도를 확인하고 상관관계를 분석하여 간호 중재의 기초 자료를 제공하고자 하였다. 자료 수집은 2015년 4월 15일에서 5월 10일까지 G시의 한 대학의 학부모 중 갱년기 여성을 대상으로 갱년기 증상, 폐경지식, 대처에 대해 구조화된 설문지를 이용하여 조사하였다. 수집된 자료는 응답이 누락되거나 불성실한 경우를 제외하고 175명의 자료를 t-test와 x2으로 분석하였으며 신체 증상과 스트레스 및 대처법과의 상관관계는 Pearson correlation coefficient로 분석하였다. 본 연구결과 대상자의 갱년기 증상의 정도는 평균 48.3이었으며, 폐경지식은 평균 8.6, 대처 정도는 평균 36.5로 나타났다. 본 연구의 결과는 교육 수준이 낮을수록 갱년기 증상 정도가 더 높게 나타났으며 갱년기 증상과 대처정도와의 상관관계는 역상관관계로 나타났다(r=-.425, p=.034). 그러므로 본 연구는 갱년기 증상, 폐경 지식 및 대처정도와의 관계를 확인하였다는 데 의의가 있다. The purpose of this study were to identify the level of climacteric symptom, menopause knowledge and coping among climacteric women and to examine the relationship between climacteric symptom, menopause knowledge and coping. Subjects of parents in a university, G city completed a structured questionnaire consisting. We analyzed the survey data from 175 responses, excluding unreturned or incomplete surveys. Data were analyzed using the t-test and X2 test to determine the differences in climacteric symptom, menopause knowledge and coping among climacteric women. Moreover, Pearson's correlation coefficient was used to examine the correlation on climacteric symptom, menopause knowledge and coping among climacteric women. The mean of climacteric symptom score was 48.3, the mean of menopause knowledge was 8.6 and the mean of coping score was 36.5. The relationship between climacteric symptom and coping was statistically significant with a negative correlation(r=-.425, p=.034). Therefore, this results identified the relationship of climacteric symptom, menopause knowledge and coping among climacteric women.

갱년기 여성의 스마트폰 중독 수준에 영향을 미치는 요인

최나영 사단법인 인문사회과학기술융합학회 2015 예술인문사회융합멀티미디어논문지 Vol.5 No.6

This study aimed to identify the factors affecting smartphone addiction among climacteric women. Subjects of parents in K University completed a structured questionnaire consisting of the Smartphone Adiction, physical activity, obesity, sleeping time and depression from September 1st to October 10th 2014. We analyzed the survey data from 235 responses, excluding unreturned or incomplete surveys. Data were analyzed using the t-test and X2 test to determine the differences in smartphone addiction, physical activity, sleeping time and depression among climacteric women. Moreover, Pearson's correlation coefficient was used to examine the correlation on smartphone addiction, physical activity, sleeping time and depression. Longer time spent using smartphone per day was directly related to smartphone addicton(p<.001). Subjects with a higher extent of smartphone addiction experienced increased depression. and decreased physical activity, sleeping time. Therefore, this results identified the relationship of physical activity, sleeping time and depression along to smartphone addiction and can be useful in developing exercise program for smartphone addiction prevention. 본 연구는 갱년기 여성의 스마트폰 중독 수준에 영향을 미치는 요인을 확인하여 스마트폰 중독 예방을 위한 프로그램 개발의 기초자료 제공을 위해 시도하였다. 자료 수집은 2014년 9월 1일에서 10월 10일까지 K대학의 학부모 중 갱년기 여성을 대상으로 스마트폰 중독 정도, 신체활동 정도, 비만, 수면 시간 및 우울에 대해 구조화된 설문지를 이용하여 조사하였다. 수집된 자료는 응답이 누락되거나 불성실한 경우를 제외하고 235명의 자료를 t-test와 x2으로 분석하였고 스마트폰 중독 정도, 신체활동 정도, 수면 시간 및 우울과의 상관관계는 Pearson correlation coefficient로 분석하였다. 본 연구결과 대상자의 스마트폰 중독사용 정도의 차이를 살펴보면 스마트폰 하루 사용시간이 긴 중년 여성의 스마트폰 중독 정도가 높았다(p<.001). 스마트폰 중독정도가 높을수록 우울의 정도는 높았고 신체활동 정도, 수면 시간은 낮았다. 그러므로 본 연구결과는 갱년기 여성의 스마트폰 중독 수준과 신체활동 정도, 수면 시간 및 우울과의 관계를 확인하였다는 데 의의가 있으며 스마트폰 중독 예방을 위한 운동 프로그램의 개발의 기초자료로의 활용을 기대할 수 있다.

Recent Advances in 3D-Cultured Brain Tissue Models Derived from Human iPSCs

최나영,이무열,정세훈 한국바이오칩학회 2022 BioChip Journal Vol.16 No.3

Neurological diseases are caused by defects in the brain, spinal cord, or nervous system. Excluding animal models, ex vivo brain tissues and brain organoids have been used for modeling neurological diseases. In addition, the blood–brain barrier (BBB) is a selective semipermeable membrane that separates the peripheral blood from the neural tissue. Thus, it regulates homeostasis of the brain and selectively delivers substances essential for brain function. The property of the BBB can often be a double-edged sword by impeding the penetration of therapeutic drugs for brain diseases. Dysregulation of the BBB can lead to various neurological diseases. To date, significant efforts have been made to develop human brain organoids and BBB models with pluripotent stem cells for mimicking neurological diseases. Since human ex vivo brain tissues are difficult to obtain from a patient directly, induced pluripotent stem cells (iPSCs) generated by genetic reprogramming of adult somatic cells have been differentiated into specific neural cell types or brain organoids. Conventionally, major brain cell types including neurons, oligodendrocytes, and astrocytes have been generated from iPSCs in two-dimensional (2D) monolayer culture plates, whereas brain organoids have been differentiated in three-dimensional (3D) culture systems. Region-specific brain organoids become an important tool to study biological mechanisms of neurological disorders. Nonetheless, brain organoids generated in static conditions show several challenges in culture, which include diffusion limitation of nutrients and oxygen and removal of metabolic waste. To resolve these issues, microfluidic chip systems have been adopted for brain organoid culture and facilitate disease modeling and precision medicine. In this short review, we summarize recent advances in brain organoid culture with iPSCs and brain organoid-on-a-chip.

그린 패션제품의 활성화를 위한 환경친화적 소비자 특성연구

최나영,김문숙 복식문화학회 1999 학술발표회 Vol.1999 No.-

한국 인삼제품에 대한 외국인의 인식도와 구매의도의 관계 분석

최나영,한상준,장광진,Choi, N.Y.,Han, S.J.,Chang, K.J. 국립한국농수산대학교 교육개발센터 2018 현장농업연구지 = Journal of practical agricultural resear Vol.20 No.1

This study was initiated because many studies would be necessary to promote Korean ginseng products when the sales of Korean ginseng are declining and many Korean ginseng farmers are facing economic difficulties. The increase in domestic sales is important, but this study is targeting for foreigner's perceptions of Korean ginseng and how to improve the products. The goal of this study is to analyze how to increase their purchase intentions of Korean ginseng products. Questionnaire survey research methods were used to learn more about making certain improvements to ginseng products, consumers are hoping, how affect their perceptions and purchase intentions of Korean ginseng, as well as how foreigners' perceptions of Korean ginseng products affects purchase intentions. Because it's difficult to find any studies about foreigner's Korean ginseng purchase intentions, the survey was expanded to include how people take care of their health, the accessibility of purchasing ginseng products, psychological factors as well as consumer characteristics, satisfaction with Korean ginseng, and intentions of buying Korean ginseng products. The result of the analysis on how making certain desired improvements to and perceptions of Korean ginseng products affect purchase intentions indicated that Korean ginseng perceptions highly affected the purchase intentions; however making certain improvements to ginseng products showed a low impact on the purchase intentions. In other words, making certain improvements, such as convenience of the ginseng products, doesn't affected Korean ginseng purchase intentions directly. On the other hand, it showed that the usefulness, its high quality, and safety trust of Korean ginseng have a big impact on purchasing intentions. If the ginseng that is grown and processed in Korea is better promoted for its high value, the Korean ginseng farmers who are facing many economic difficulties will be able to raise their income.

학교-지역사회 연계 문화예술교육의 질 관리와 교사의 역할

최나영 한국문화교육학회 2019 한국문화교육학회 학술대회지 Vol.2019 No.-

천연 추출물을 이용한 염색포의 견뢰도와 항생제 내성균주에 대한 항균효능 비교

최나영,Choi, Nayoung 한국의상디자인학회 2022 한국의상디자인학회지 Vol.24 No.3

This paper aims to compare and verify the antibacterial effects of cotton fabrics naturally dyed with extracts of Ulmus davidiana var. japonica Nakai, Caesalpinia sappan, Saururus chinensis, and Artemisia princeps against antibiotic-resistant strains of bacteria. After natural dyeing of the test fabric, Al, Cu, Fe mordants were used. The color fastness against washing, rubbing, and perspiration of the cotton fabrics dyed with the 4 types of extracts were mostly excellent. However, the color fastness against light showed poor results for all four types. As for the antibacterial test method, MRSA (ATCC 33591) was applied to the cotton fabrics dyed with the four kinds of extracts and cultured for 24 hours. After that, the bacteria that proliferated on the fabrics were collected and spread on a solid medium. The bacteria were measured to find out the bacteriostatic reduction rate for the antibiotic-resistant strains. As a result of the analysis, all four extracts showed a high bacteriostatic reduction rate of more than 99% when the copper mordant was used. Even with the lack of a mordant, the bacteriostatic reduction rate was high, at 99.9% for Caesalpinia sappan and 94.6% for Saururus chinensis.

국내 디자이너들의 작품에 표현된 한국적 패션디자인에 관한 연구

양리나,최나영 培材大學校 1997 培材論叢 Vol.2 No.-

본 연구는 1980년대 부터 현재까지 패션디자인에 표현된 한국적 디자인의 조형성을 다시 고찰해보며 현대 패션에서의 그 응용을 살펴봄으로써, 우리나라의 전통에 대한 재인식과 세계 패션 무대에 한국미를 인식시킨다는 점에 의의가 있다. 또한 무섭게 밀어닥치는 국제화 사회에서 그 거센 물살에 쓸려 사라져가고 있는 한국적인 것의 존재 가치를 재확인하고 한국적인 것이 현대 패션디자인에 어떻게 수용되고 조화되어질 수 있는지를 통해 국내 디자이너들이 나아가야할 방향을 제시하고자 한다. 한국적 복식미의 고찰을 바탕으로 1980년대 이후 한국적 디자인을 꾸준히 모색해 온 우리나라의 패션 디자이너들의 의상을 중심으로 분석한 결과, 외형적인 측면에서 보여지는 한국적 디자인의 특성은 전통적 요소의 응용이나 재현적인 요소가 강해 국제주의보다는 지역주의에 치우치는 경향을 볼 수 있었다. 현대디자인, 특히 패션 산업디자인은 과학적이면서도 합리적이고 소비자의 의식에 적극적으로 호응하는 디자인을 요구하고 있다. 이러한 때에 우리가 되찾아야할 한국적인 것은 우리 전통의 형태와 소재, 색채, 문양 등의 가시적 실체를 끄집어내어 현대의상에 대입 절충하는 것이 아니라 오늘날의 상황에 맞는, 즉 현대에 있어서의 '한국성'의 의미를 철저히 파악하여 한국적이면서도 완전히 현대적인 의상을 창출해 내는 노력이 필요할 것이다. 또한 국제주의적 보편성에 지역주의적 전통성을 접목시켜 우리나라 특유의 디자인을 창조해 나가는 것이 바람직하다 하겠다. This study is to look round formality of Korean traditional design expressed in fashion design from 1980 to now. And as investigate to application of modern fashion design, it is significant to recognige about tradition of our country and let them understand Korean beauty in the world fashion stage. Also, how can another recognition about being value of tradition and Korean characteristics be adopted and harmoniged in modern fashion design in Korea, and I'd like to guide to direction for national designer. Analyising conclusion about national fashion designer costume after 1980 based on study about aestheics of Korea, I found Korean design characteristics have bent for localism than internationalism because it seems to appeal strong reappearancial characteristics and application of traditional characteristics showed surface. And strong needs to modern design specially in fashion is rationalistic and scientific, agressive concerning consumer conciousness. This time to need effort to fashion design completely modern, and appropriate to Korean situation with insight meaning of Korean characteristics about form, motif, color of traditional as virtual reality. Also, it is wishful to create individual design add to international generality on local traditionality.