High Tone Spreading in Northern Kyungsang Korean

Jiyeon Song,Heesung Kim,Kee-Ho Kim 한국언어학회 2014 언어 Vol.39 No.2

A Short-Term Longitudinal Study on Maternal Parenting Efficacy, Mother-Toddler Interaction and Toddlers’ Development

( Jiyeon Song ),( Sojung Seo ) 한국유아교육학회 2023 정기학술대회 논문집 Vol.2023 No.2

A two-step approach for variable selection in linear regression with measurement error

Song, Jiyeon,Shin, Seung Jun The Korean Statistical Society 2019 Communications for statistical applications and me Vol.26 No.1

It is important to identify informative variables in high dimensional data analysis; however, it becomes a challenging task when covariates are contaminated by measurement error due to the bias induced by measurement error. In this article, we present a two-step approach for variable selection in the presence of measurement error. In the first step, we directly select important variables from the contaminated covariates as if there is no measurement error. We then apply, in the following step, orthogonal regression to obtain the unbiased estimates of regression coefficients identified in the previous step. In addition, we propose a modification of the two-step approach to further enhance the variable selection performance. Various simulation studies demonstrate the promising performance of the proposed method.

사이버 괴롭힘 상황에서 주변인의 도덕적 판단, 도덕적 이탈, 성격적 신념이 방어 행동 의사결정에 미치는 영향

송지연 ( Song Jiyeon ) 한국청소년학회 2022 청소년학연구 Vol.29 No.11

The purpose of this study was to identify the factors that influence the moral judgment, moral disengagement, and personality beliefs influencing on bystander’s defending tendency in cyberbullying by investigating 186 university students. First, the study examined whether there was a difference in the distribution of types of people around according to the presence or absence of a third person in cyberbullying. Second, the study examined whether there was a difference in the level of moral judgment and moral disengagement according to the existence of a third person. Third, the relative influence of the moral judgments and personality beliefs of the people on the decision-making of defensive actions was confirmed according to the existence of a third person. The results are as followings: firstly, it was confirmed that there was no difference in the distribution of types of other people. Secondly, the difference between the level of moral judgment and moral departure according to the presence or absence of a third person in cyberbullying was not confirmed. Lastly, when there is a third person around, it was confirmed that the defensive tendency of the surrounding person was higher as they had no experience of bully, the higher the level of moral judgment, and the lower the personality fixed beliefs.

Analysis on Cognitive Changes of Gardens between 2014 and 2018 by Big Data of Naver Channel

심지연(Jiyeon Sim),김현지(Hyun-Ji Kim),Yujin Song(Yujin Song),진혜영(Hyeyoung Jin) 인간식물환경학회 2022 인간식물환경학회지 Vol.25 No.3

Background and objective: This study analyzed the keywords related to 'garden' based on data in 2014 and 2018, which isbefore and after the enforcement of the 'Act on the Creation and Furtherance of Arboretums and Gardens' enacted in 2015,in order to identify the behavioral patterns and perception changes of Korean citizens about gardens. Methods: The research scope was limited to Naver Blog, Café, and News created in 2014 and 2018, and a total of 289,214cases (23,389 from Naver News, 41,721 from Naver Café, 224,104 from Naver Blog) were analyzed using text mining,which is a method of big data analytics. As a result of keyword analysis, the diversity of data and the amount of buzzincreased by approximately 9.4% from 138,127 cases in 2014 to 151,087 cases in 2018, proving the change in publicperception due to the expanded perception and policy about the scope of gardens. Results: The result of sentiment analysis revealed that, unlike the past in which gardens were merely for tending anddecorating, gardens today are undergoing changes in the patterns of use, performing more complicated roles such astaking photographs, dining, having fun, and hanging out. Gardens now coexist with commercial facilities such asrestaurants or cafes where people can relax and enjoy sights or food regardless of their sizes or ownerships, which indicatesthat garden culture is becoming more popular in everyday places. This change is brought by government policies, implyingthat the nation's legislation and policy support in expanding the garden culture has a significant impact on the patterns ofgarden use among people today. Conclusion: The analysis results of this study have significance in that they more objectively show the change in citizenperception of gardens in line with the garden culture in Korea that is rapidly spreading. The results can also be effectivelyused in organizing various garden projects that meet the needs of garden visitors, making plans and developing programs,or managing gardens.

담합의 피해액 분석: 우유 시장을 중심으로

송지연 ( Jiyeon Song ),최윤정 ( Yun Jeong Choi ) 한국여성경제학회 2018 여성경제연구 Vol.15 No.1

본 논문은 2008년 우유 가격 담합 사건에 대한 실증분석을 통해 담합기간 동안 생산요소인 원유가격 변동이 소비자가격에 적극적으로 전가되었음을 보였으며, 가변수 모형을 바탕으로 추정된 담합 피해액과 공정거래위원회에서 부과한 최종과징금의 비교분석을 통해 과징금 제도개선에 대한 논의의 기반을 제공하였다. 그리고, 2013년 제기된 우유 가격 담합 의혹에 대한 실증분석을 통해 2008년 담합기간과 유사한 패턴의 소비자가격의 변동성이 관찰되었음을 보였다. We investigated the milk price fixing case in Korea and estimated consumer damages. The empirical analyses showed that the price increase of raw milk was actively transferred to the retail price of milk during the collusion period of August 2008- October 2008. Meanwhile, the Korea Fair Trade Commission's final fines on firms involved in collusion were only the half of the estimated damages to consumers, which calls for the improvement of the penalty system. In addition, during the period of milk price fixing suspicion raised in 2013, the response of milk price was similar to the one during the 2008 collusion period and retail prices of milk were higher than the estimated but-for-prices.

정기구학을 기반 하는 복제모형 굴삭기 조종 장치 설계

송지연(Jiyeon Song),표상훈(Sanghun Pyo),윤정원(Jungwon Yoon) 한국HCI학회 2013 한국HCI학회 학술대회 Vol.2013 No.1

굴삭기의 경우 작업의 범용성(汎用性)이 뛰어난 중장비로써 여러 작업 상황에서도 유연하게 쓰일 수 있는 장비이다. 그러나 기존의 굴삭기 조종은 건설현장에서조차 고급 기술에 속하는 기술이며, 많은 굴삭기 사용에 많은 수요에도 불구하고 굴삭기의 미려한 조작 기술을 습득하는 것은 쉽지 않다. 그러므로 특별한 기술적 훈련 없이 누구나 쉽게 조작할 수 있는 조종법 설계를 위하여 replica interface를 이용한 조종 장치에 대해 소개한다. 이를 위하여 본 논문에서는 굴삭기의 로봇공학적인 고찰과 각 구동부의 기구학적 특성을 고찰하고, 굴삭기와 기하학적, 기구학적 상사(相似)를 가지는 replica 조종 장치를 통해 굴삭기의 직관적이고 효율적인 조종이 가능함을 보인다. 또한 replica 조종 장치를 이용한 굴삭기의 조종법이 조종에 필요한 자유도를 줄이고 사용자의 의도를 확실히 전달할 수 있음을 사용자 평가를 통하여 증명하고자 한다. 끝으로, 제시된 조종법의 잠재적인 문제점과 실제 굴삭기 유압시스템에 적용되기 위한 조건에 대한 고찰을 제시한다. The excavator can be used in various situations at the construction areas so it is better to have an adaptive excavator working in different scenarios. But the adaptive excavator operation needs very high skill level to operate and that is not feasible. Therefore, we introduce new replica interface device to synthesize new operation method for easy control, without the need of special operation training of the excavator. To accomplish this purpose, we consider features of excavator in terms of robotics and each joint kinematic characteristics, and we show that it is possible to operate excavator more intuitively and efficiently through the replica interface device which has kinematics and geometrical similarity with the real excavator. In addition, we will verify that by using the replica interface device the degree of freedom for excavator is reduced, also the user"s intented instructions for the excavator are transferred without any loss. At the last, we suggest potential problems of the proposed method and the conditions required for applying this idea to real excavator system.

치매안심센터 맞춤형사례관리의 실제와 발전방안

김지연(Jiyeon Kim),송준아(Jun-Ah Song),정수아(Sua Jung),김지연(Jiyeon Kim),김선희(Sunhee Kim) 한국노인간호학회 2023 노인간호학회지 Vol.25 No.2

Purpose: With the nationwide expansion of local dementia centers (LDCs) after the National Responsibility for Dementia System, the number of tailored dementia case management (TDCM) programs increased significantly, but qualitative improvement in TDCM is still a remaining task. The purpose of this study was to explore the current practice of the TDCM in LDCs and suggest directions for future program improvement. Methods: A focus group interview was conducted with seven hands-on workers who had experience in TDCM at the LDCs. Participants (mean age=40 years old) were nurses, social worker, and occupational therapist with an average of 9.1 years of working experience in TDCM. Data were analyzed using qualitative content analysis. Results: The results were summarized into three core themes and fourteen sub-themes. The three core themes were ‘Job Characteristics of TDCM,’ ‘Barriers to the effective operation of TDCM,’ and ‘Improvement plans for successful TDCM.’ Conclusion: To establish the function and role of TDCM within the domestic dementia management system, we propose five areas for improvement: 1) Developing a standardized TDCM manual; 2) Quantitative and qualitative expansion of case manager working capacity; 3) Activating a multidisciplinary team approach; 4) Forming a collaborative network between related organizations and local community councils; 5) Active promotion of TDCM.

19~36개월 영아-교사 상호작용에 영향을 미치는 요인에 관한 연구: 영아 시도 vs. 교사 시도 상호작용 특성을 중심으로

송지연 ( Song Jiyeon ),서소정 ( Seo Sojung ) 한국유아교육학회 2021 유아교육연구 Vol.41 No.2

본 연구의 목적은 19~36개월 영아와 교사가 시도하는 상호작용의 차이를 알아보고, 영아와 교사 변인이 영아-교사 상호작용에 미치는 영향력은 어느 정도인지를 알아보는데 있다. 본 연구를 위해 서울시 소재 보육시설 6개소에 재원하는 19~36개월 영아 72명과 그들의 담임교사 12명을 대상으로 참여관찰과 설문조사를 실시하였으며, 구체적으로는 영아 1명당 주 1회 20분씩 총 8회의 160분간 현장관찰을 진행하였다. 연구결과는 첫째, 상호작용 동기의 경우 영아와 교사 모두 놀이참여를 위한 상호작용이 가장 빈번하게 나타났으나, 상호작용 유형에서는 시도 주체에 따라 서로 다른 양상을 보였다. 둘째, 주요 연구변인인 영아의 기질과 발달수준 및 교사의 학력과 경력에 따라 상호작용 주체별 동기 및 유형에서 유의한 차이가 나타났다. 마지막으로 영아 시도 상호작용은 영아의 대근육 운동기술능력이, 교사 시도 상호작용은 교사의 학력이 상호작용에 가장 많은 영향을 미치는 것으로 밝혀졌다. 나아가 교사가 영아에게 시도하는 상호작용에서 영아의 사회성 기질과 발달수준이 조절역할을 하는 것으로 나타났다. 이러한 결과를 기초로 관련 연구 및 교사교육 실제에 함의점을 제시하였다는 점에서 본 연구의 의의가 있다. The purpose of this study was to compare characteristics associated with infant-initiated and teacher-initiated interactions in the context of early childcare centers. The study subjects consisted of 72 infants (aged 19 months to 36 months) old and 12 of their teachers in charge of 2-year-old classrooms in childcare centers located in Seoul. Data on variables were gathered through participant observation (total 160 minutes per infant over 8 sessions) by researchers, and self-reported questionnaires from teachers and mothers. For data analysis, descriptive statistics, non-parametric analysis of tests for differences, and regression analyses were employed. The main results of this study were as follows. First, both infants and teachers were most likely to initiate their interactions with each other when inviting to their play activities. However, the patterns between infant-initiated and teacher-initiated interactions appeared to be different. Second, there were significant differences between the infant-initiated and teacher-initiated interactions by the variables of interest. The most remarkable result of this study was that the infant’s temperament moderated the effects of infant’s development outcome (motor-skill development) on the teacher-initiated interactions with infants. Along with the main results of this study, implications for future research and practice were discussed.

어머니 양육효능감, 어머니-영아 상호작용과 영아 발달 간의 관계: 단기종단연구

송지연 ( Song Jiyeon ),서소정 ( Seo Sojung ) 한국유아교육학회 2024 유아교육연구 Vol.44 No.1

본 연구는 18~36개월 영아와 어머니 40쌍을 대상으로 시간의 경과에 따른 어머니 양육관련 변인이 어머니-영아 상호작용을 통해 영아 발달에 미치는 영향을 살펴보는데 주 목적을 두었다. 수집된 자료 검증을 위하여 SPSS 23.0과 Process MACRO Model 4를 이용한 매개효과 분석을 실시하였다. 도출된 연구 결과는 단기종단적 관점에서 Bornstein과 Tamis-LeMonda(1990)가 제시한 3가지 경로 모델에 근거하여 해석하였으며 구체적인 내용은 다음과 같다. 첫째, 후기(Time 2) 영아의 각 발달 영역별로 주요 연구 변인들의 동시적 또는 누적적 영향력을 확인할 수 있었다. 둘째, 초기(Time 1) 어머니 양육효능감과 이후 시기(Time 2)의 언어 · 인지발달 간의 관계에서 초기(Time 1) 어머니의 상호작용 민감성은 부정적인 간접효과를, 이후 시기(Time 2)의 자율성 존중은 긍정적인 간접효과를 나타내었다. 이러한 결과는 주요 양육 변인이 시간의 경과에 따라 영아 발달에 영향을 미치는 초기 경험(Model 1)과 동시적 경험(Model 2) 및 누적 경험 모델(Model 3)로 설명될 수 있으며 생애 초기 영아 발달을 효과적으로 지원하기 위한 실증적인 연구를 제시한 점에 의의가 있다고 본다. The purpose of this study was to investigate parenting process model by examining the pathways through which parenting variables influence infant development in 40 infant-mother pairs, with infants between 18 and 36 months of age. The collected data were validated by mediated effect analysis using SPSS 23.0 and Process MACRO Model 4. The results were interpreted based on the three path model proposed by Bornstein and Tamis-LeMonda (1990) from a short-term terminal perspective, and the specific details are as follows. First, simultaneous or cumulative influence of the primary variables was identified on the development of infants in the late pacing period (Time 2), where different factors influence each developmental domain. Second, this study examined the mediating effect of mother-infant interactions on the relationship between mothers’ perceived parenting efficacy and infants’ development over time. As a result, in the relationship between early maternal parenting efficacy and later language and cognitive development, mothers’ interaction sensitivity at the early stage (Time 1) had a negative indirect effect, while respect for autonomy at the later stage (Time 2) had a positive indirect effect. This findings explain a model of primary caregivers’ early experiences (Model 1), concurrent experiences (Model 2), and cumulative experiences (Model 3) of infants’ development over time. Furthermore, it is significant that this study presents an empirical research on how to effectively support the development of young children in the early stages of life.