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Three-Dimensional Porous Collagen/Chitosan Complex Sponge for Tissue Engineering
Kim, Sung Eun,Cho, Yong Woo,Kang, Eun Jung,Kwon, Ick Chan,Lee, Eunhee Bae,Kim, Jung Hyun,Chung, Hesson,Jeong, Seo Young The Korean Fiber Society 2001 Fibers and polymers Vol.2 No.2
A three-dimensional, porous collagen/chitosan complex sponge was prepared to closely simulate basic extracellular matrix (ECM) constitutes, collagen and glycosaminoglycan. The complex sponge was prepared by a lyophilization method and had the regular network with highly porous structure, suitable for cell adhesion and growth. The pores were well interconnected, and their distribution was fairly homogeneous. The complex sponge was crosslinked using 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide (EDC) and N-hydroxysuccinimide (NHS) to increase its boilogical stability and enhance its mechanical properties. The crosslinking medium has a great effect on the inner structure of the sponge. The homogeneous, porous structure of the sponge was remarkably collapsed in an aqueous crosslinking medium. However, the morphology of the sponge remained almost intact in a water/ethanol mixture crosslinking milieu. Mechanical properties of the collagen/chitosan sponge were significantly enhanced by EDC-mediated crosslinking. The potential of the sponge as a scaffold for tissue engineering was investigated using a Chinese hamster ovary cell (CHO-K1) line.
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Exploring Nurses Perceptions of Nursing Home Care in South Korea: A Qualitative Study
Cho Eunhee,Kim Hyejin,Chang Soo Jung,Kim Hyang,Kim Jeongah 한국노인간호학회 2020 노인간호학회지 Vol.22 No.2
Purpose: The purpose of this study was to describe nurses perceptions of nursing services provided to nursing home residents, facilitators and challenges of providing care for these residents, and the need to improve the quality of care in the nursing home setting. Methods: Data were collected through semi-structured, audio-recorded interviews with 19 nurses from six nursing homes in South Korea from February to June 2015. A thematic analysis was used to analyze the data. Results: Five themes emerged: resident- and family-centered care as quality care, the importance of registered nurses in providing quality care, the importance of collaborating with care workers and resident s families, needs for nursing-home facility-level support for quality care, and needs for national policy for quality care. Conclusion: To improve the quality of care in nursing homes requires organizational and policy endeavors to increase the number of nurses per shift, provide systematic education for care workers, and develop strategies for collaboration with care workers and families. Nursing-home facility-level support and national policy are also required to meet the complex healthcare needs of nursing home residents with multiple chronic conditions.
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I’M WATING FOR ‘IT’: ON THE PSYCHOLOGY OF STOCKPILING POINTS
Eunhee Cho,Jihyun Jin 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7
Loyalty programs are one of the most widely used strategy to promote sales and manage consumer relationship. According to Stourm, Bradlow, and Fader (2015), loyalty programs are divided into two types: non-linear programs and linear programs. Of these two programs, linear loyalty programs are increasingly expanding thanks to the development of digital technology. However, it is doubtful whether the findings of previous researches investigating non-linear loyalty programs also hold true for linear loyalty programs. Our study aims to investigate what induces consumers to stockpile or use their points in linear loyalty programs. This is particularly important because it seems that consumers really have no economic incentive to stockpile points in such programs. They are not rewarded for their “stockpiling” behavior- the amount of points accumulated for 1 dollar remains the same regardless of whether a consumer has already accumulated 100 points or 10000 points. The present research shows that in linear loyalty programs, consumers stockpile points just for the sake of “it”. That is, our studies show that the degree to which consumers perceive their effort to invest until they reach certain point level (goal) to be high or low influences consumers’ stockpiling decision. Specifically, when consumers expect that they have to invest greater effort, they are more likely to accumulate points compared to when they expect they don’t have to invest a lot of effort. In the main study, we show that this effect was mediated by consumers’ anticipation utility. Also, we found an interesting phenomenon that shows even when a certain point level is not obviously given consumers still set their own goals and calculate their effort needed to reach the goal.
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Older Adult Residents' Perceptions of Daily Lives in Nursing Homes
Cho, Eunhee,Kim, Hyejin,Kim, Jeongah,Lee, Kyongeun,Meghani, Salimah H.,Chang, Soo Jung SIGMA THETA TAU INTERNATIONAL INC 2017 JOURNAL OF NURSING SCHOLARSHIP Vol.49 No.5
<P><B>Abstract</B></P><P><B>Purpose</B></P><P>This study aimed to explore older adults’ perceptions of their daily lives in South Korean nursing homes.</P><P><B>Design</B></P><P>We employed a qualitative descriptive study using semistructured interviews.</P><P><B>Methods</B></P><P>We conducted individual, semistructured interviews with 21 older adult residents from five nursing homes in South Korea and analyzed the data using thematic analysis.</P><P><B>Findings</B></P><P>Five themes related to older adults’ perceptions of their daily lives in nursing homes emerged: enhanced comfort, aspiring to maintain physical and cognitive functions as human beings, desire for meaningful interpersonal relationships, feelings of confinement and limited autonomy, and acceptance of and adaptation to life in a facility. These themes indicated the positive and negative aspects of nursing home residence, and facilitators and challenges to enhancing older adult residents’ quality of life (QOL).</P><P><B>Conclusions</B></P><P>Policy, practice, and research endeavors are required to improve older adult residents’ QOL, such as adequate professional nursing care for physical and psychological comfort and residents’ health and functional status, sufficient activity programs and meaningful relationships, person‐centered care to enhance residents’ autonomy, and homelike environments.</P><P><B>Clinical Relevance</B></P><P>This study demonstrates that healthcare providers, researchers, and policymakers should consider nursing home residents’ QOL to examine the quality of care within the setting and facilitate the development of appropriate strategies to improve QOL among this population.</P>
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( Eunhee Cho ),( Jinyoung Suh ),( Jahyun Lee ),( Yonjin Jun ),( Yeonju Hong ) 한국감성과학회 2021 추계학술대회 Vol.2021 No.0
Seokchangpo (sweet flag), which is generally used for ornamental or medicinal purposes, has a unique scent. In this study, the scent of Seokchangpo was analyzed by making a difference between the method of cultivating Seokchangpo (Water culture, Soil culture) and the method of extracting fragrance components (Head-space extraction, Solvent extraction).
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( Eunhee Cho ),( Sunah Kang ),( Yeonju Hong ) 한국감성과학회 2019 춘계학술대회 Vol.2019 No.-
To research the scent of pine soot ink, volatile compounds of the pine soot inkstick were analyzed. Head-space extraction method was used to capture the volatiles from pine soot inkblock. Those volatiles were separated and identified by GC-MS. Thereafter, the odor characteristic properties of the major volatile components were obtained by Flavor-Base 2010. A total of 59 volatile compounds were identified and the major volatile components were borneol (36.99%), camphor (33.02%), isoborneol (13.58%), hexanal (0.3010%), 1-terpineol+isopulegol (0.2707%) and nonanal (0.2345%). The main components contributed to the odor of pine soot inkstick were terpenes and aldehydes. These sorts of chemicals smell like pine, woody, penetrating, camphoreous and peppery.
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Cho Eunhee,Min Deulle,Lee Kyongeun,Kim Jeongah,Chang Soo Jung,Kim Hyang,Kim Sinhye,Min Ari 한국노인간호학회 2019 노인간호학회지 Vol.21 No.3
Purpose: This study was done to develop an instrument to measure the work environment in nursing homes and to evaluate its psychometric properties. Methods: Instrument development was conducted in three phases: development of the initial questionnaire, content validity and pilot-testing, and construct validity and reliability testing. Participants were 184 nurses from 62 nursing homes in South Korea. Exploratory factor analysis, confirmatory factor analysis, and examination of internal consistency were used to verify the psychometric properties of the instrument. Results: The final model derived from the factor analysis yielded 27 items across five domains: nurses’ participation in nursing home affairs; well-defined scope of practice; nurse managers’ ability, leadership, and support of nurses; staff and resource adequacy; and communication and coordination. The fit indices in the confirmatory factor analysis were acceptable. Total Cronbach’s ⍺ was .93 (sub-domains ranged .77~.88). Conclusion: The results indicate that the selected items are suitable for measuring the work environment of nursing homes in South Korea. This instrument may be useful in nursing home-related research and may be used to improve the health outcomes of older adults in nursing homes.
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( Eunhee Cho ),( Jinyoung Suh ),( Jahyun Lee ),( Yonjin Jun ),( Yeonju Hong ) 한국감성과학회 2021 한국감성과학회 국제학술대회(ICES) Vol.2021 No.-
Seokchangpo (sweet flag), which is generally used for ornamental or medicinal purposes, has a unique scent. In this study, the scent of Seokchangpo was analyzed by making a difference between the method of cultivating Seokchangpo (Water culture, Soil culture) and the method of extracting fragrance components (Head-space extraction, Solvent extraction).
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