Single Clone per PCR에 의한 HIV-1 env 유전자의 Quasispecies 분석

양한나(Han Na Yang),남정구(Jeong-Gu Nam),김성순(Sung Soon Kim),최상윤(Sang Yun Choi),이주실(Joo-Shil Lee) 대한미생물학회 2005 Journal of Bacteriology and Virology Vol.35 No.2

대학교 대형 강의실의 보행장애인 접근성을 위한 베리어프리 디자인 적용 실태

양한나(Han na Yang),이두나(Doo na Lee),연소라(So ra Yeon),이현정(Hyun Jeong Lee) 충북대학교 생활과학연구소 2016 생활과학연구논총 Vol.20 No.1

Accessibility to education spaces including college lecture rooms is directly related to right to education of persons with disabilities. This study aimed to investigate barrier-free design application in large lecture rooms in colleges focusing on accessibility of persons with mobility impairments. Total 83 lecture rooms accommodating 80 or more persons in two universities in Chungcheong Province were selected as study targets. Field survey using a barrier-free design checklist was conducted between March 19, 2015, to April 3, 2015. Major findings were as follows.(1) Application rate of items in lecture room entrance section were higher than that of items in in-room passage and assigned seat sections. (2) To compare characteristics between items that showed high application rates and low application rates, application rates of items related to building structure such as level difference and width of entrance and passage were found relatively satisfactory while items that could be easily improved with low cost and efforts such as height of entrance handle, closing time of a door check, wall safety bar, anti-sliding treatment on ramp, assigned seat for persons with disabilities were not applied well. (3) Among items with low application rates, ramp needs to be adopted from planning stage as it is not easy to be added after construction completion to secure proper gradient for wheelchair users (1/12 or less). (4) When planning seats for wheelchair users, adaptable seats in diverse locations are desirable so that the users could have location choices.

부산지역 컨테이너터미널과 벌크터미널의 서비스품질분석에 관한 실증연구

양한나(Han-Na Yang),신창훈(Chang-Hoon Shin) 한국항해항만학회 2018 한국항해항만학회지 Vol.42 No.1

선사들 간의 전략적 제휴관계를 통한 얼라이언스 및 대형선사가 꾸준하게 출범함에 따라 이들을 고객으로 유치하고 유지하는 것은 허브항의 지위를 차지하는데 중요한 요소로 부각되고 있다. 컨테이너 터미널의 경우 연구가 활발하게 진행되어 있기 때문에 이를 기반으로 정책적 전략을 수립하는 것이 수월하다. 그에 반해 벌크터미널은 상대적으로 연구가 부족한 실정이다. 그러나 컨테이너터미널과 벌크터미널은 항만이라는 동일 범주에 포함되는 것으로 전체적인 관점에서 실증연구가 필요하다고 판단하였다. 따라서 본 연구에서는 구조방정식분석을 활용하였다. 전체 측정모델의 분석결과 벌크터미널의 ‘성과-재계약의도’를 제외한 모든 항목이 유의한 것으로 나타났다. 본 연구는 기존에 시도되지 않았던 컨테이너터미널과 벌크터미널 간의 비교를 시도함으로써 향후 다양한 차원에서의 실증연구 활성화에 크게 기여할 수 있을 것이라 기대된다. Strategic partnerships of alliances and large shipping companies have been steadily launched in shipping market. Converting these alliances into customers and maintaining them important hub port status. The cases of container terminals to establish a political strategy based on. On the other hand, bulk terminals are relatively unexplored container terminal and bulk terminal are included in the same category of port empirical research from the overall perspective. Therefore, analysis of structural equations was utilized in this study. Analysis of the entire measurement model showed that all items except “Results – Intention of renewal” on bulk terminals were significant. This study is expected to contribute to promotion of empirical studies in various levels by compare container terminals and bulk terminals.

부부갈등이 청소년의 불안에 미치는 영향

양한나(Han-Na Yang),최미경(Mi-Kyung Choi) 한국아동학회 2017 아동학회지 Vol.38 No.3

Objective: The main purpose of this study was to examine the relationship between marital conflict, parentification, and adolescent anxiety. Methods: The participants comprised 301 high school students from the Seoul province. They were asked to complete questionnaires that consisted of the State-Trait Anxiety Inventory, the Children’s Perception of Interparental Conflict Scale, and the Filial Responsibility Scale-Youth. The data were analyzed by frequency analysis, Cronbach’s α, descriptive statistical analysis, Pearson’s correlation coefficients, multiple regression analysis, and hierarchical multiple regression analysis. To analyze the collected data, SPSS 18.0 was used. Results: First, the content and resolution of marital conflict had an effect on both adolescent state anxiety and trait anxiety. Second, unfairness parentification had an effect on both adolescent state anxiety and trait anxiety. Third, the frequency of marital conflict had an effect on emotional parentification. Further, the intensity, content, and resolution of marital conflict had effect on unfairness parentification. Fourth, unfairness parentification played a partial mediating role in the relationship between the content of marital conflict and adolescent anxiety (state anxiety/trait anxiety). In addition, unfairness parentification played a complete mediating role in the relationship between the resolution of marital conflict and adolescent trait anxiety. Conclusion: These results indicate that parentification plays an important role in marital conflict and adolescent anxiety. In addition, this study also shows that marital conflict has an important effect on adolescent anxiety directly. Therefore, this study will be useful for developing both parental education and counseling programs for adolescents.

기숙사 거주 여대생을 위한 인간공학적 매트리스 제안

오민정(Min Jung Oh),양한나(Han Na Yang),정현아(Hyun Ah Jeong),황지은(Ji Eun Hwang),최윤정(Yoon Jung Choi) 한국생활과학회 2013 한국생활과학회 학술대회 Vol.2013 No.11

벌크터미널 서비스품질 분석 및 이용주체별 차이에 관한 연구: 부산항 벌크터미널을 중심으로

이경남(Kyung-Nam Lee),양한나(Han-Na Yang),왕고봉(Gao-Feng Wang),신창훈(Chang-Hoon Shin) 한국항해항만학회 2016 한국항해항만학회지 Vol.40 No.4

해상운송화물이 꾸준하게 증가하면서 화물을 처리하는 터미널에 대한 관심도 증가하고 있다. 그러나 터미널과 관련된 대부분의 국 내연구는 컨테이너터미널에 국한되어 있다. 본 연구는 벌크터미널의 서비스품질 관점에서 수행하였다. 벌크터미널 서비스 이용자를 크게 선사 와 화주로 구분하여 제공받는 서비스에 대한 차이를 비교분석하였다. 또한 본 연구에서 제안한 속성 가운데 유형성은 선석 수나 수심, 장비 등 의 변수들이 반영되어 설명되기 때문에 형성지표로 분석하는 것이 적합하다고 판단하였다. 따라서 일반적인 구조방정식모델에서 활용되는 반 영적 측정모델뿐만 아니라 형성적 측정모델을 결합한 분석을 시도하였다. 전체 측정모델의 분석결과 공감성과 성과·만족도 간의 관계를 제외한 모든 항목이 유의한 것으로 나타났다. 이용주체별 차이 분석 결과는 화주가 선주보다 신뢰·반응성이 만족·성과에 미치는 영향에 대해 더 중요 하게 평가하고 있는 것으로 나타났다. 이러한 연구결과는 향후 벌크터미널의 경쟁력 확대를 위한 전략적 자료로 활용될 수 있을 것이라 기대된다. While marine transport freight is steadily increasing, people are more interested in terminals handling cargo. But the domestic researches on terminals were almost on container terminal. This study attempted to study the service quality for bulk terminals. The users of bulk terminal services were divided into shipowners and shippers to compare their differences by using bulk terminal service provided. During the attributions proposed in this study, Tangibles were descripted by the numbers of berth or depth, facilities, and so on. So it was suitable to consider the tangibles by formative indicators. And also this study has tried using “reflective model” and “formative model” to make a measurement model for comprehensive analyses. The results showed that all of the items were significant except the relation between empathy and performance·satisfaction in the overall measurement model analyses. User groups difference analyses results have showed that the trust·responsiveness impact on performance·satisfaction was more importantly assessed by shippers than by shipowners. It was expected to use the results of this study as a good strategic resource to help bulk terminal administrators make various expansion plans to improve the bulk terminal’s competitiveness in the future

석유화학 액체화물의 환적과 수출입 물동량 관계연구

신창훈(Shin, Chang-Hoon),양한나(Yang, Han-Na) 한국항만경제학회 2020 韓國港灣經濟學會誌 Vol.36 No.4

우리나라는 항만 인프라가 뛰어나며, 석유화학단지를 보유하고 있기 때문에 동북아 오일 허브의 가능성이 충분하다. 특히 부가가치가 높은 STS(해상환적작업)는 국가 경제에 크게 기여하고 있다. 본 연구에서는 화학공업생산품, 석유정제품, 그리고 원유를 전국, 부산, 울산, 그리고 여수/광양 물동량으로 분류하였다. 그리고 이들 간의 수입, 수출 및 환적의 그랜저 인과관계를 살펴보았다. 단위근 검정을 위하여 ADF, PP, KPSS를 적용하였다. 또한 VAR모형과 Toda and Yamamoto의 확장된 VAR모형을 활용하여 분석을 실시하였다. 그 결과 각 지역에 따라 그랜저 인과관계 유무에 차이가 있는 것을 발견하였다. 또한 컨테이너와 비컨테이너로 구분해서 분석한 결과 화물 종류에 따른 차이가 나타났다. 따라서 항만에 대한 정부의 정책이나 인센티브제도와 같은 지원은 획일화 보다는 지역, 화물의 종류, 화물의 운송형태 등에 따라 차별화가 요구된다. Since Korea has excellent port infrastructure and competitive petrochemical complexes, there is plenty of potential for creating an oil hub in Northeast Asia. In particular, Ship-to-Ship (STS), which creates high added values, contributes greatly to the national economy. In this study, the liquid cargo volumes of chemical industrial products, refined petroleum products, and crude oil were analyzed at the national and regional (Busan, Ulsan, and Yeosu/Gwangyang) levels. Additionally, a Granger causality analysis was performed between imports, exports, and transshipments, in pairs. ADF, PP, and KPSS were analyzed for the unit root test. In addition, the VAR model and expanded VAR model suggested by Toda and Yamamoto were used for further analyses. Findings revealed a difference in Granger causality depending on the region or cargo type. These findings suggest that policies and incentive schemes for ports need to be differentiated according to the region and cargo types. In addition, the different patterns in the relationship between transshipments and import–export petrochemical cargoes should be considered.

종성변별 프로그램이 취학 전 말소리장애 아동의 조음명료도와 읽기에 미치는 효과

김화수(Kim, Wha-Soo),이지우(Lee, Ji-Woo),양한나(Yang, Han-Na) 한국영유아보육학회 2021 한국영유아보육학 Vol.- No.126

본 연구의 목적은 종성변별 프로그램이 초등학교 입학을 앞둔 말소리장애 아동의 조음명료도 및 읽기에 미치는 효과를 알아보고자 하는 것에 있다. 만 6세 2개월~7세 2개월에 해당하는 취학 전 말소리장애 4명의 아동을 대상으로 종성변별 중재프로그램을 실시하였다. 전체 프로그램은 사전 검사, 기초선 1(3회기), 중재1단계(10회기), 기초선 2(3회기), 중재 2단계(10회기), 유지, 사후검사의 단계로 단일대상연구 중에서 ABAB디자인을 사용하여 프로그램의 효과성을 증명하였다. 그 결과 말소리장애 아동 4명 모두 단어 읽기에 효과를 나타내었으나 조음명료도는 3명의 아동이 향상되었다. 이는 종성변별 중재프로그램이 말소리장애 아동의 읽기 및 조음명료도 향상에 긍정적인 영향을 미치는 것을 뜻한다. 또한 종성 생략의 오류를 보이는 말소리장애 아동의 경우 종성변별에 대한 지각 능력이 일반아동에 비해 낮음으로 종성에 대한 지각 능력을 키워줌으로써 긍정적인 효과를 촉진해 읽기 및 조음명료도를 개선할 수 있음을 보여준다. The purpose of this study is to find out how the final consonant discrimination program affects articulation intelligibility and reading of child with pre-school speech sound disorder. The subjects of the study were four children with pre-school speech sound disorder who were 6:2~7:2 months old. This study consisted of pre-test, baseline 1(3 sessions), intervention 1(10 sessions), baseline 2(3 sessions), intervention 2(10 sessions), maintenance, and post-test. In addition, this study proved the effectiveness of the program using ABAB design among single-subject research. The results of this study showed that all four children with speech sound disorder had an effect on word reading, and the three children had improved articulation intelligibility. These results indicate that the final consonant discrimination intervention program had a positive effect on the improvement of reading and articulation intelligibility of children with speech sound disorders. The results of this study also show that children with speech sound disorder who show errors in omission of final consonants can improve reading and articulation intelligibility by developing their perception ability on final consonant discrimination. can be promoted to improve reading and articulation intelligibility.

협력필터링과 사회연결망을 이용한 신규고객 추천방법에 대한 연구

신창훈(Chang-Hoon Shin),이지원(Ji-Won Lee),양한나(Han-Na Yang),최일영(Il Young Choi) 한국지능정보시스템학회 2012 지능정보연구 Vol.18 No.4

Consumer consumption patterns are shifting rapidly as buyers migrate from offline markets to e-commerce routes, such as shopping channels on TV and internet shopping malls. In the offline markets consumers go shopping, see the shopping items, and choose from them. Recently consumers tend towards buying at shopping sites free from time and place. However, as e-commerce markets continue to expand, customers are complaining that it is becoming a bigger hassle to shop online. In the online shopping, shoppers have very limited information on the products. The delivered products can be different from what they have wanted. This case results to purchase cancellation. Because these things happen frequently, they are likely to refer to the consumer reviews and companies should be concerned about consumer’s voice. E-commerce is a very important marketing tool for suppliers. It can recommend products to customers and connect them directly with suppliers with just a click of a button. The recommender system is being studied in various ways. Some of the more prominent ones include recommendation based on best-seller and demographics, contents filtering, and collaborative filtering. However, these systems all share two weaknesses : they cannot recommend products to consumers on a personal level, and they cannot recommend products to new consumers with no buying history. To fix these problems, we can use the information which has been collected from the questionnaires about their demographics and preference ratings. But, consumers feel these questionnaires are a burden and are unlikely to provide correct information. This study investigates combining collaborative filtering with the centrality of social network analysis. This centrality measure provides the information to infer the preference of new consumers from the shopping history of existing and previous ones. While the past researches had focused on the existing consumers with similar shopping patterns, this study tried to improve the accuracy of recommendation with all shopping information, which included not only similar shopping patterns but also dissimilar ones. Data used in this study, Movie Lens’ data, was made by Group Lens research Project Team at University of Minnesota to recommend movies with a collaborative filtering technique. This data was built from the questionnaires of 943 respondents which gave the information on the preference ratings on 1,684 movies. Total data of 100,000 was organized by time, with initial data of 50,000 being existing customers and the latter 50,000 being new customers. The proposed recommender system consists of three systems : [+] group recommender system, [-] group recommender system, and integrated recommender system. [+] group recommender system looks at customers with similar buying patterns as ‘neighbors’, whereas [-] group recommender system looks at customers with opposite buying patterns as ‘contraries’. Integrated recommender system uses both of the aforementioned recommender systems to recommend movies that both recommender systems pick. The study of three systems allows us to find the most suitable recommender system that will optimize accuracy and customer satisfaction. Our analysis showed that integrated recommender system is the best solution among the three systems studied, followed by [-] group recommended system and [+] group recommender system. This result conforms to the intuition that the accuracy of recommendation can be improved using all the relevant information. We provided contour maps and graphs to easily compare the accuracy of each recommender system. Although we saw improvement on accuracy with the integrated recommender system, we must remember that this research is based on static data with no live customers. In other words, consumers did not see the movies actually recommended from the system. Also, this recommendation system may not work well with products other than movies. Thu

취학 전 아동의 비대면 언어재활에 대한 필요성 및 요구 조사

김화수(Kim, Wha-Soo),이지우(Lee, Ji-Woo),양한나(Yang, Han-Na) 한국영유아보육학회 2021 한국영유아보육학 Vol.- No.127

본 연구의 목적은 코로나19를 경험하면서 현재 언어재활은 어떻게 이루어지고 있으며 부모 또는 주 양육자가 원하는 비대면 수업은 어떠한 것인지에 대한 정보를 수집함으로써 비대면 언어재활의 기초자료를 마련하고자 한다. 연구 대상자는 현재(2020년 10월) 언어재활서비스를 받고 있는 취학 전 자녀의 보호자 및 주 양육자를 대상으로 설문 조사를 실시하였다. 총 106부의 설문지가 회수되었고 이를 빈도분석과 함께 카이제곱 검정을 통한 교차분석을 실시하였다. 연구 결과, 106명 중 3명을 제외한 103명이 코로나19로 인해 언어재활이 중단된 경험이 있으며, 6세-7세는 1:1 비대면 언어재활이 ‘필요하다’에 응답하였고 3세-5세의 경우는 비대면을 원하지 않는다의 비율이 더 높은 것으로 나타났다. 또한 “코로나19가 종식되었을 경우 비대면 언어재활이 필요한가요?“에 대한 질문에 ‘모르겠다’의 비율이 높았다. 이러한 결과를 토대로 취학 전 아동을 대상으로 한 비대면 언어재활에 대한 기초자료를 마련할 수 있을 것이라 기대된다. The purpose of this study is to collect basic information on how language rehabilitation should be carried out in the untacted era through a survey of the necessity and demand for non-face-to-face language rehabilitation for parents and main caregivers with children currently receiving language rehabilitation services. The subject of the study conducted a questionnaire on the parents and caregivers of preschool children who are currently receiving language rehabilitation services. As a result of the study, 103 out of 106 reported that language rehabilitation was stopped due to Corona 19. In addition, those aged 6-7 responded that 1:1 non-face-to-face speech rehabilitation was ‘necessary’, but those aged 3-5 had a higher ratio of ‘do not want non-face-to-face’. In addition, the percentage of “I don’t know” was high when asked, “Is non-face-to-face verbal rehabilitation necessary when Corona 19 is over?” Based on these results, it is expected that basic data on non-face-to-face speech rehabilitation for children aged 3-5 can be prepared.