노년층 광장무 참여자의 레저참여도가 레저만족도에 미치는 영향 : 자기효능감과 몰입경험에 기반한 연쇄매개효과

장자양,공매 한국체육과학회 2023 한국체육과학회지 Vol.32 No.4

This study explores the mechanism of how leisure involvement affects leisure satisfaction among elderly Square Dance participants Chengdu, Sichuan Province, China, based on the perspective of leisure involvement. The results indicate that there are significant positive correlations among leisure involvement, self-efficacy, flow experience, and leisure satisfaction. Leisure involvement not only directly affects leisure satisfaction but also indirectly affects leisure satisfaction through the mediating role of self-efficacy and flow experience. Specifically, there are three mediating pathways, including the mediating pathway of self-efficacy, the mediating pathway of flow experience, and the chain mediation pathway of self-efficacy and flow experience. The findings of this study reveal the mechanism of how leisure involvement affects leisure satisfaction among elderly Square Dance participants to a certain extent, and have reference value for promoting the healthy development of Square Dance.

배달 음식 패키지디자인의 기능 평가 및 개선 방향 연구 - 상하이(上海), 베이징(北京), 선전(深圳)시를 중심으로 -

장자양,김은정 한국일러스트레이션학회 2023 일러스트레이션 포럼 Vol.24 No.77

As modern society continues to develop and society and people's living patterns continue to change, takeout and delivery services have increased significantly, and we are facing the serious challenge of environmental pollution. Accordingly, awareness of eco-friendly packaging is increasing, and it has emerged as a major challenge. The purpose of this paper is to identify problems through an evaluation of the packaging currently used, focusing on the cases of takeout packages in China's top three cities by GDP, and to suggest improvement plans for eco-friendly takeout packages. A package evaluation analysis framework was designed through prior research, and a survey was conducted to reflect consumer expectations and draw conclusions. It was found that most consumers feel a sense of environmental issues and responsibility and prefer packaging made of eco-friendly materials. In addition to the 3r, it is necessary to practice ESG, redesign, restoration, replacement, and new technology, and to apply minimalism in terms of design. In other words, resource waste must be reduced as much as possible on the premise of ensuring the basic functions of food packaging, and in actual production for reduction, cost reduction can be achieved by reducing packaging volume or using structural innovation. In addition, we must use eco-friendly materials, avoid the use of excessive packaging materials, and design in a way that reduces ink use by selecting unprocessed raw materials to meet the global environment and consumer expectations.

1996년 중국언론의 한국보도 연구

張子讓 관훈클럽 1996 관훈저널 Vol.- No.63

한국어 교재를 통해 본 한국어 조사 결합 방식 및 양상

당영총,장자양 한중경제문화학회 2023 한중경제문화연구 Vol.24 No.-

Many Korean sentences use multiple particles following the head noun, a construction known as “조사 결합” (particle combination). However, there is no unified consensus among scholars regarding the concept, classification, and constraints of Korean particle combinations. This study aims to review existing concepts and terminology related to Korean particle combinations through previous research, classify subcategories of particles, and reestablish the concepts of particle combinations and compound particles. Additionally, it selects three representative reading materials commonly used in Korean linguistics and analyzes them to categorize and organize the patterns and order of Korean particle combinations by type. This research seeks to assist learners in better understanding particle combinations and reducing errors in their usage.

TiO2 Paste에 PEG 첨가에 따른 DSSC의 효율 특성

권성열,양 욱,장자항 한국전기전자재료학회 2014 전기전자재료학회논문지 Vol.27 No.11

Photo electrode is an important component of DSSC, so this paper did some research on it. Through the method of adding PEG additive into TiO2 paste, the electrical characteristics and efficienciesof DSSCs with photo electrode surface area were studied. In the case of not adding PEG in TiO2 paste,26 ㎛ thickness TiO2 photo electrode shows 5.081% efficiency. The highest short circuit current densitywas 10.476 mA/cm2. The structure of porous TiO2 film can be controlled through changing the PEGadditive amount in TiO2 paste and the molecular weight of PEG. When the additive amount of PEG20,000 in TiO2 paste reaches 5%, the peak efficiency with 26 ㎛ thickness TiO2 photo electrode was5.387% and its highest current density were 11.084 mA/cm2. 본 실험에서는 PEG의 분자량과 첨가량을 각각 달리하여 제조된 TiO2 paste로 제작된 DSSC의 전기적 특성 및 효율을 측정하고 비교하였다. TiO2 paste 제조 시 PEG 분자량에 따라 첨가량을 5%에서 20%까지 변화시켰을 때, 각 분자량에서 동일하게 첨가량 5%로 제작된 DSSC의 효율이 가장 높게 측정되었다. 또한, 첨가량 5% 시 첨가된 PEG 분자량이 1,000에서 20,000까지 증가함에 따라 효율이 증가됨을 확인하였다. 결과 TiO2 paste에 PEG 20000을 5% 첨가하여 제작된 TiO2 광전극 두께 26 ㎛에서 가장 높은 효율 5.387%을 나타내었다.

A novel de novo mosaic mutation in PHEX in a Korean patient with hypophosphatemic rickets

양미선,김진섭,양아람,장자현,전태연,조성윤,진동규 대한소아내분비학회 2018 Annals of Pediatirc Endocrinology & Metabolism Vol.23 No.4

X-linked hypophosphatemic rickets is caused by loss-of-function mutations in PHEX, which encodes a phosphate-regulating endopeptidase homolog. We report a 26-year-old man with X-linked hypophosphatemic rickets who showed decreased serum phosphate accompanied by bilateral genu valgum and short stature. He had received medical treatment with vitamin D (alfacalcidol) and phosphate from the age of 3 to 20 years. He underwent surgery due to valgus deformity at the age of 14 and 15. Targeted gene panel sequencing for Mendelian genes identified a nonsense mutation in PHEX (c.589C>T; p.Gln197Ter) and a mosaic pattern where only 38% of sequence reads showed the variant allele. This mutation was not found in his mother, who had a normal phenotype. This is a case of a sporadic nonsense mutation in PHEX and up to date, this is the first case of a mosaic mutation in PHEX in Korea.

반복적인 저혈당으로 엑솜 시퀀싱을 통해 31개월에 진단된 Citrin 결핍증 1례

김치우,황정윤,양아람,김진섭,이태헌,장자현,조성윤,진동규,Kim, Chiwoo,Hwang, Jeongyun,Yang, Aram,Kim, Jinsup,Lee, Taeheon,Jang, Ja-Hyun,Cho, Sung Yoon,Jin, Dong-Kyu 대한유전성대사질환학회 2017 대한유전성대사질환학회지 Vol.17 No.2

Citrin 결핍증은 요소회로 이상 질환 중 하나로, 7q21.3에 위치한 SLC25A13 유전자에 돌연변이로 발생하는 상염색체 열성 유전질환이다. 세 가지 표현형 중에 신생아 간내 담즙 정체형, 제 2형 시트룰린혈증은 잘 알려졌지만, 성장부진과 이상지질혈증형은 최근에 밝혀지고 있는 표현형으로 아직 우리나라에 보고된 적이 없다. 성장부진과 이상지질혈증형에서는 경미할 수는 있으나 식욕감소, 피곤함, 성장부진, 저혈당, 시트룰린 상승, 이상지질혈증, 젖산염/피루브산염 상승과 같은 이상이 관찰될 수 있다. 또한 저혈당으로 내원하였을 때 일반적인 검사로는 원인 규명이 어려울 수 있다. 저자들은 생후 30개월에 반복적인 저혈당으로 내원하여 소변 유기산 분석, 호르몬 검사와 같은 대사 이상 검사에서 명확한 특정 진단명이 의심되지 않아, 생후 31개월에 targeted exome sequencing을 통해 복합이형접합 SLC25A13 유전자 돌연변이[c.852_855del (p.Met285Profs*2), c.1177+1G>A]를 발견하여 성장부진과 이상지질혈증으로 발현한 citrin 결핍증을 우리나라에서 최초로 진단하여 보고하는 바이다. Citrin deficiency is an autosomal recessive disorder caused by mutations in the SLC25A13 gene on chromosome 7q21.3, and a type of urea cycle disorder that causes hyperammonemia. Although neonatal intrahepatic cholestasis and adult-onset type II citrullinemia, a type of citrin deficiency, have been described well in many articles for several decades, failure to thrive and dyslipidemia caused by citrin deficiency (FTTDCD), the other type of citrin deficiency, has been only identified recently. There was previously no case report about FTTDCD in Korea. Patients with FTTDCD could present with loss of appetite, fatigue, failure to thrive, hypoglycemia, hypercitrullinemia, dyslipidemia, and an increased lactate/pyruvate ratio. Routine evaluation may not reveal the cause of hypoglycemia caused by citrin deficiency. We recently had a case that presented with recurrent hypoglycemia in a 30-month-old boy. Chemistry profiling, urine organic acid analysis, plasma acylcarnitine analysis, and hormone studies indicated values within the normal range or non-specific findings. Mutation analysis to identify the cause of hypoglycemia identified the subject as a compound heterozygote carrying each of the c.852_855del ($p.Met285Profs^*2$), and c.1177+1G>A mutant alleles. We report here on this unusual case of citrin deficiency presenting with FTTDCD for the first time in Korea.

An atypical case of Noonan syndrome with KRAS mutation diagnosed by targeted exome sequencing

김지섭,조성윤,양아람,장자현,최영빈,이지은,진동규 대한소아내분비학회 2017 Annals of Pediatirc Endocrinology & Metabolism Vol.22 No.3

Noonan syndrome (NS) is a genetic disorder caused by autosomal dominant inheritance and is characterized by a distinctive facial appearance, short stature, chest deformity, and congenital heart disease. In individuals with NS, germline mutations have been identified in several genes involved in the RAS/mitogenactivated protein kinase signal transduction pathway. Because of its clinical and genetic heterogeneity, the conventional diagnostic protocol with Sanger sequencing requires a multistep approach. Therefore, molecular genetic diagnosis using targeted exome sequencing (TES) is considered a less expensive and faster method, particularly for patients who do not fulfill the clinical diagnostic criteria of NS. In this case, the patient showed short stature, dysmorphic facial features suggestive of NS, feeding intolerance, cryptorchidism, and intellectual disability in early childhood. At the age of 16, the patient still showed extreme short stature with delayed puberty and characteristic facial features suggestive of NS. Although the patient had no cardiac problems or chest wall deformities, which are commonly present in NS and are major concerns for patients and clinicians, the patient showed several other characteristic clinical features of NS. Considering the possibility of a genetic disorder, including NS, a molecular genetic study with TES was performed. With TES analysis, we detected a pathogenic variant of c.458A > T in KRAS in this patient with atypical NS phenotype and provided appropriate clinical management and genetic counseling. The application of TES enables accurate molecular diagnosis of patients with nonspecific or atypical features in genetic diseases with several responsible genes, such as NS.