모유수유의 효과성 측정도구 개발

양현주 ( Yang Hyun-joo ),정민영 ( Jeong Min-young ),서지민 ( Seo Ji-min ) 여성건강간호학회 2016 여성건강간호학회지 Vol.22 No.4

Purpose: The purpose of this study was to develop and evaluate breastfeeding effectiveness scale to measure effectiveness of breastfeeding for mothers in the early postpartum period. Methods: A conceptual framework was constructed from properties of effective breastfeeding (Yang and Seo, 2011), and item construction was derived from literature review and analysis of the data along with interviews with breastfeeding mothers. Content validity was tested by experts. Each item was scored on a five-point Likert scale. The preliminary questionnaire was administered to 248 breastfeeding mothers. Data were analyzed using item analysis, factor analysis, Pearson correlation coefficients, and Cronbach`s α. Results: From the factor analysis, 20 items in seven factors were derived. The factors were identified as mother`s satisfaction, suckling, assurance of milk quantity, infant`s satisfaction, latching on, infant`s feeding desire, and breastfeeding positioning. The seven factors explained 65.1% of total variance, Cronbach`s α of the total items was .83 and the factors ranged from .44 to .75. Conclusion: Results of this study suggest that breastfeeding effectiveness scale is a reliable and valid instrument to measure breastfeeding effectiveness of mothers in the early postpartum period.

한국 저가항공사 발전방안에 관한 탐색적 연구

양현주 ( Hyun Joo Yang ),박혜윤 ( Hye Yoon Park ) 관광경영학회 2005 관광경영연구 Vol.25 No.-

2009 개정 수학교육과정과 IBDP 수학과 교육과정에서의 교과서 비교 연구 - 고등학교 대수 영역을 중심으로 -

양현주 ( Hyun Ju Yang ),좌준수 ( Jun Soo Choa ),최승현 ( Seung Hyun Choe ) 한국수학교육학회 2015 수학교육논문집 Vol.29 No.3

과학기술의 급격한 발달과 인터넷의 활성화 등을 통해 전 세계가 활발한 상호 교류를 하게 되었으며 이러한 사회 변화의 결과 세계화라는 새로운 패러다임이 떠오르고 있다. 이와 같은 사회적 흐름에 따라 시대가 요구하는 인재상도 달라지고 있으며 우리의 교육도 국제교육 즉, 글로벌 교육에 많은 관심을 갖게 되었다. 수학교육의 측면에서도 우리나라의 인재들이 경쟁력을 갖추어야 하는 것은 중요한 과제로 떠오르게 되었다. 이에 본고에서는 우리나라 고등학교교육과정 체제 안에서 교육과정의 국제화를 현실화하는 방안의 하나인 국제 공인 교육과정 IBDP(International Baccalaureate Diploma Program: 이하 IBDP로 표기)와 우리나라 고등학교 교육과정 중 중요한 부분인 대수 영역을 중심으로 비교 및 분석하였다. 특히, 우리나라 교육과정과 IBDP에 의해 개발된 교과서 중 수학 상급과정 (Mathematics Higher Level: 이하 HL로 표기)단계를 선택하였으며 각 교과서에서 다루는 대수영역에 관한 내용의 범위 및 깊이, 문제의 수준 그리고 개념을 설명하는 방식이나 문제의 유형 및 교수-학습 방법 등을 분석하여 단원별 논의점을 제시하였다. The scientific technology developed rapidly and the internet became more popular, also, the world became interactive with one another and the word ‘Global’ became popular and built a new paradigm. As the development of the society, the ideal criteria for the competent student changed. Consequently, the attention for the globalized education increased. From the points of view of mathematical education, it became a important task to be prepared for international competitiveness for korean talented students. For theses reasons, this article analyzes the characteristics of IBDP and its textbook, which is an international official curriculum and one of the actualizing method for internalization Korean high school curriculum and text book, specifically, focusing on algebra part. Especially, Korean curriculum textbooks and the Mathematical Higher Level textbooks of IBDP was compared and analyzed. As a result, the depth and range of the content, standard level of the question, methods being used to explain the concept, type of questions as well as teaching - learning method were analyzed and in each chapter of the algebra we give meaningful result and proposed discussion.

치매환자의 보호자 부양부담감 - Giorgi 현상학적 연구방법 -

양현주 ( Hyun Ju Yang ),한상우 ( Sang Woo Han ) 고령자·치매작업치료학회 2015 고령자.치매작업치료학회지 Vol.9 No.2

목적 : 치매환자의 보호자들이 겪는 부담감 안고 살아가는 삶에 대한 경험의 본질과 의미를 총체적 관점에서 탐색하고자 한다. 연구방법 : 연구 참여자는 연구목적을 이해하고 연구자와의 대화를 통해 자신의 체험을 진솔하게 구술할 수 있는 치매환자를 부양하고 있는 보호자 2명으로 선정하였으며, Giorgi의 현상학적 연구방법을 토대로진행되었다. 면담 기간은 2014년 4월이었으며, 면담은 3회 이상 걸쳐 1:1로 이루어 졌고, 각 면담시간은 1시간 정도 소요되었다. 연구결과 : 보호자들의 부양부담에 대해 면담한 결과, 16개의 의미단위들을 찾아내어 7개의 하위구성요소와 3개의 구성요소를 도출하였다. 3개의 구성요소에는 역할 과중과 사회활동의 제한, 적응을 위한 노력이었으며, 이러한 공통된 부담을 경험하는 삶의 특성 안에서 개인적 성향과 배경 및 상황에 따라 다르게 나타났다. 결론 : 신체적·정신적·재정적 부담의 근본적 원인은 역할 과중으로 역할을 분담할 수 있는 사회적 서비스 뿐만 아니라, 주변 가족 및 친구, 이웃들이 서로 협력할 수 있도록 교육을 통한 인식개선으로 지원체계구축 요구된다. 또한 보호자들에게 원만한 사회활동에 참여하기 위한 대처방안을 제시함으로써 개인의 삶을 영위할 수 있도록 보호자들의 가치관과 삶의 배경에 따라 올바른 작업균형을 제시하고 교육시킬 수 있는 다양한 대처전략을 마련해야 할 것이다. Objectives : This study aims to explore nature and meaning of caregiver’s burden in the primary caregivers of patients with dementia. Methods : Research methodology was based upon Giorgi’s phenomenological research methodology. Study participants were selected from two people who are supporting dementia patients. Interview was performed in April 2014 one month, more than three times over 1:1. Each interview time took over an hour. Results : As a result of discussions about the care burden of caregivers, finds the meaning of 16 units were derived 7 sub-components and 3 components. Three components included the role heavy, the limitation of social activities, the efforts to adaptation. However, these results were different depending on the individual tendencies, characteristics of the background and situation in life. Conclusion : The root cause of physical, mental and financial burden are required the social services to share the role with role overload. In addition, building support systems required to improve burden through education to work together with surrounding family and friends and neighbors. Furthermore, it will prepare a variety of coping strategies to maintain occupational balance and increase the quality of life for patients and caregiver.

블록체인 기반 P2P 채팅 서비스 아키텍처 및 구현

양현주(Hyunjoo Yang),박세진(Sejin Park) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.6

In this paper, we implemented a blockchain-based serverless chat service by pointing out the problems of the messenger service operated in the existing central server. The proposed application was developed using WebRTC technology in the Flutter environment, and the performance of the existing central server messenger and the proposed service was measured and analyzed. Blockchain adopted Ethereum to build a private network. The average transmission/reception time was measured for each data size, and the existing central server messenger was 111.65 ms ~ 191.75 ms, and the proposed messenger was 20.85 ms ~ 26.20 ms. In the case of the proposed messenger, it may be slightly delayed until the start of chatting due to the operation process of the block chain. However, in terms of data transmission and reception, the proposed application shows about 5 times more performance than the comparative messenger because it exchanges data quickly between peers through P2P connection.

플렉서블 AMOLED 디스플레이 제조를 위한 폴리머 기판상에 엑시머 레이저에 의해 결정화된 폴리크리스탈라인 실리콘의 특성

양현주(Hyun-Ju Yang),이종필(Jongpil Lee),민영실(Youngsil Min),이지연(JiYeoun Lee),김무진(Moojin Kim),김경보(Kyoung-Bo Kim) 한국조명·전기설비학회 2019 한국조명·전기설비학회 학술대회논문집 Vol.2019 No.5

아까시 꽃 추출물을 첨가한 성게 껍질 필름의 제조

양현주(Hyun-Ju Yang),송경빈(Kyung Bin Song) 한국식품영양과학회 2016 한국식품영양과학회지 Vol.45 No.5

본 연구에서는 폐기되는 성게 껍질을 이용한 생분해성 필름소재를 개발하고자 gelatin을 첨가한 복합필름 및 항산화, 항균성을 부여하기 위해 아까시 꽃 추출물(RFE)을 첨가한 필름을 제조하였다. 그 결과 gelatin 비율이 증가함에 따라 성게 껍질 필름의 인장강도가 증가하였고 신장률이 감소하였으며, 성게 껍질과 gelatin을 8:2 비율로 첨가하였을 때 최적의 물성을 보였다. 또한, 필름에 RFE를 첨가함에 따라 인장강도는 감소하였으나 신장률과 필름 투습도는 증가하였다. RFE 함유 성게 껍질 필름의 ABTS, DPPH 라디칼 소거능 측정과 디스크 확산법을 이용하여 항산화 및 항균 능력을 측정하였는데, RFE 농도가 증가함에 따라 항산화, 항균 능력이 향상하였다. 따라서 본 연구 결과, RFE를 첨가한 생분해 성게 껍질 필름은 적절한 물성과 함께 항산화, 항균 능력이 있기에 가공식품의 저장성을 증대시킬 수 있는 기능성 포장 소재로의 활용이 가능하다고 판단된다. Sea urchin skeleton (SUS) generated from production of sea urchin eggs was used as a biodegradable film base material, and its composite film with gelatin was prepared. In addition, Robinia pseudoacacia flower extract (RFE) was incorporated into the film-forming solution to provide antioxidant and anti-microbial activities. The tensile strength (TS) of the SUS/gelatin composite films increased with increasing gelatin content, whereas elongation at break (E) decreased. Among the composite films, SUS/gelatin film at a ratio of 8:2 (w/w) exhibited the most desirable TS and E values. Furthermore, SUS composite film containing RFE showed a reduced TS and increased E compared to the control film. Based on 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) and 2,2-diphenyl-1-picrylhydrazyl radical scavenging assays and disc diffusion results against growth of Listeria monocytogenes, antioxidant and anti-microbial activities of films increased with increasing RFE concentration. Consequently, SUS composite film containing RFE showed proper physical properties as well as antioxidant and anti-microbial activities. These results indicate that SUS can be used as a film base material while the SUS composite film containing RFE can be utilized as active packaging.

초산모의 모유수유행위 구조모형

양현주(Yang, Hyun-Joo),서지민(Seo, Ji-Min) 한국간호과학회 2013 Journal of Korean Academy of Nursing Vol.43 No.3

Purpose: The study was done to construct and test a structural model to explain primipara breastfeeding behavior. Methods: The participants were 213 primiparas on postpartum wards. Data were analyzed using the PASW 18.0 and AMOS 19.0 programs. Results: Fitness statistics for the hypothetical model were appropriate (χ² =38.50, p=.070, GFI=.96, RMSEA=.05, AGFI=.93, NFI=.95, TLI=.97, CFI=.98, PNFI=.57, χ²/df=1.43). Breastfeeding behaviors were directly influenced by intention to breastfeed, perceived effectiveness of breastfeeding, and the amount of supplementary feeding. The amount of supplementary feeding had the largest direct impact on breastfeeding behavior. The largest total effect on breastfeeding behavior was intention to breastfeed. The environment of the maternity hospital indirectly influenced breastfeeding behavior. These factors explained 18.9% of variance in the primipara breastfeeding behavior. Conclusion: The results of the study indicate that in order to promote primipara breastfeeding the amount of supplementary feeding immediately after the birth should be limited and an environment that encourages exclusive breastfeeding in the hospital should be provided. The results also suggest it is necessary to provide nursing interventions that increase the intention to breastfeed and the perceived effectiveness of breastfeeding.

어묵 가공업의 경영효율성 분석

양현주 ( Hyun-Joo Yang ),송정헌 ( Jung-hun Song ),권혁승 ( Hyeok-Seung Kwon ) 한국수산경영학회 2021 수산경영론집 Vol.52 No.3

Base on the survey and financial statement on fish-paste processing company, this study aimed to estimate management efficiencies of fish-paste processing management using a data envelopment-analysis (DEA), In-depth interview and to find out their determinants. Model results show that the estimated mean management efficiencies obtained for the VRS and CRS DEA are 83.7% and 89.1%. In-depth interview results also show that efficiencies caused by scale of technical matter was greater than efficiencies caused by the scale of the company. Thus it implies that technical development is essential for achieving high-efficiency of fish-paste processing company more than expanding the size of company.

효과적인 모유수유 개념 분석

양현주 ( Huyn Joo Yang ),서지민 ( Seo Ji Min ) 여성건강간호학회 2011 여성건강간호학회지 Vol.17 No.4

Purpose: This study was conducted to analyze and clarify the concept of the effective breastfeeding. Methods: This study used Walker and Avant`s process of concept analysis. Results: Effective breastfeeding is how to give infant adequate milk, which fulfills needs of mother and infant, from her breast so that they can be satisfied with the process and results. It included the effective breastfeeding properties as follows: feeding behaviors (positioning, latch on, and suckling), transferring a breast milk to an infant, mother-infant interaction, and satisfying their desires (satisfaction, comfort, mother`s self-confidence, infant`s adequate weight gain and defecation, adequate breastfeeding interval). The antecedent of effective breastfeeding were anatomical and functional normal breast, breastfeeding knowledge and steady-state of mother, and feeding desire, rooting reflex and normal oral cavity of infant. The consequences of effective breastfeeding were exclusive breastfeeding, infant and maternal health and wellbeing, and achievement of mother and infant attachment. Conclusion: The meaning of effective breastfeeding defined in this study will contribute to develop the effectiveness breastfeeding assessment tool and the nursing intervention for ineffective breastfeeding.