고유수용성감각 운동과 근력강화 운동이 비만중년여성의 발목 근력과 균형에 미치는 영향

이효정,이효정 대한통합의학회 2018 대한통합의학회지 Vol.6 No.1

Purpose : The purpose of this study is to evaluate the effects of Ankle Exercise Program on Muscle Strength and Balance in Obese Middle Aged Woman. Method : The Subjects of this study, among the patients who were diagnosed with obesity in the study, for patients total of 8 people have agreed to research. Experimental group 4 people, control group 4 people, was a total of 8 people. Group-specific arbitration method, was applied to Unstable supporting surface exercise program(experimental group) and stable supporting surface exercise program(control group). Each training courses 30 minutes for 6 weeks, examined the changes in Functional Reach Test(FRT) and One Leg Standing(OLST), Dorsi Flexion(DF) and Plantar Flexion(PF) ability to examine a total of 6-week course effectively. The intervention were compared by measuring before and after. Result : There were significant improvements in the subscales of the muscle strength and balance test of those who practiced with the unstable supporting surface exercsie program, while the control group showed significant changes only muscle strength. Conclusion : Therefore, unstable supporting surface exercsie program is effective in improvement of to improve the muscle strength and balance in woman with obesity.

Microgrooves on titanium surface affect peri-implant cell adhesion and soft tissue sealing; an in vitro and in vivo study

이효정,김태일,이정태,홍지수,임범순,박희정,김영광 대한치주과학회 2015 Journal of Periodontal & Implant Science Vol.45 No.3

Purpose: With the significance of stable adhesion of alveolar bone and peri-implant soft tissue on the surface of titanium for successful dental implantation procedure, the purpose of this study was to apply microgrooves on the titanium surface and investigate their effects on peri-implant cells and tissues. Methods: Three types of commercially pure titanium discs were prepared; machined-surface discs (A), sandblasted, large-grit, acid-etched (SLA)-treated discs (B), SLA and microgroove- formed discs (C). After surface topography of the discs was examined by confocal laser scanning electron microscopy, water contact angle and surface energy were measured. Human gingival fibroblasts (hGFs) and murine osteoblastic cells (MC3T3-E1) were seeded onto the titanium discs for immunofluorescence assay of adhesion proteins. Commercially pure titanium implants with microgrooves on the coronal microthreads design were inserted into the edentulous mandible of beagle dogs. After 2 weeks and 6 weeks of implant insertion, the animal subjects were euthanized to confirm peri-implant tissue healing pattern in histologic specimens. Results: Group C presented the lowest water contact angle (62.89±5.66 θ), highest surface energy (45±1.2 mN/m), and highest surface roughness (Ra=22.351±2.766 μm). The expression of adhesion molecules of hGFs and MC3T30E1 cells was prominent in group C. Titanium implants with microgrooves on the coronal portion showed firm adhesion to periimplant soft tissue. Conclusions: Microgrooves on the titanium surface promoted the adhesion of gingival fibroblasts and osteoblastic cells, as well as favorable peri-implant soft tissue sealing.

아름다운 노후 건강한 노년 - 뭐 하고 살지? 시간도 많지만 할 일은 더 많다

이효정,Lee, Hyo-Jeong 한국건강관리협회 2013 건강소식 Vol.37 No.10

은퇴 이후 세컨드 라이프는 이 전의 시간보다 중요한 인생의 두 번째 삶이다. 하루하루 무료하게 보내기보다는 새로운 계획으로 의미 있는 시간을 만들어보자. 조금만 눈을 돌려 찾아보면 할 일은 무궁무진하다.

온라인 음식배달 플랫폼의 배달요금 부과정책이 소비자의 공정성 지각에 미치는 영향

이효정,곽나현,이충훈 한국유통경영학회 2022 유통경영학회지 Vol.25 No.1

Purpose: The primary purpose of this study is to examine the relationship between various types of the food delivery charge and the customers’ perceived fairness on the charge required by the online-to-offline (O2O) food delivery platform. In particular, it attempts to understand how fair customers perceive the food delivery charges to be and further to identify the rational condition in which the customers find the delivery charge to be fair in the O2O food delivery platform. Research design, data, and methodology: A 2(Delivery charge by distance) x 2(Delivery charge by weekend/holiday) x 2(Minimum order amount) betweensubjects factorial design experiment was conducted in which the total of 326 subjects were invited and randomly assigned to one of the eight experimental conditions through an online survey panel data company. A three-way analysis of variance (ANOVA) was mainly performed to test the proposed research hypotheses. Results: The result showed that customers find delivery charge by distance or weekend/holiday to be unfairer than any other type. In contrast, they are more likely and willing to accept the delivery charge contingent upon the minimum order charge. Additionally, we found that when the delivery charge type is combined with weekend/holiday charge requirement, the customer’s perceived fairness on the delivery charge significantly decreases in a negative direction. Implications: This study provided empirical evidence to the O2O food delivery platform s e rvice and d elive ry f ood marke te r in t hat t he rate fe nce strate gy and delivery charges should be specified at a reasonable and acceptable degree for customers. Additionally, this study paves the way for further empirical research into policy making for food delivery charge as it explores the causal relationship between various types of the food delivery charge and the customers’ perceived fairness on the charges.

Helicobacter pylori urease subunit A 단백질의 식물체내에서의 발현

이효정,이만형,신동일,정일경,최성진,박희성 한국식물생명공학회 2000 식물생명공학회지 Vol.27 No.3

위염과 위궤양을 일으키는 Helicobacter pylori는 그 감염 환자에서 강한 항체형성을 유도하는 urease를 생산한다. 식물체를 이용하여 H. pylori에 대한 식용백신 모델을 제조하기 위하여 H. pylori의 urease 유전자를 지니고 있는 pH808 plasmid로부터 750bp의 ureA DNA를 PCR에 의해서 증폭한 후 이를 담배식물에서 발현이 되도록 조작하였다. 재분화된 형질전환 식물체로부터 ureA 유전자의 도입과 mRNA발현 및 단백질합성을 분석하였다. CaMV 35S promoter에 의한 ureA 유전자의 발현은 SDS polyacrylamide 전기영동 및 immunoblot실험에서 박테리아로부터의 재조합 단백질과 같은 크기의 30 kDA UreA 단백질이 생산되었음을 확인할 수 있었다. Helicobacter pylori, an etiologic agent of gastritis and peptic ulceration, produces urease which elicits a powerful immunoglobulin response in H. pylori-infected individuals. To establish a model plant vaccine agains H. pylori, 750 bp -ureA DNA amplified by polymerase chain reaction from pH 808 plasmid harboring urease gene cluster was cloned and manipulated to be expressed in tobacco plants. From the regenerated transgenic tobacco plants, ureA DNA integration,m its mRNA expression and protein synthesis were analyzed and confirmed by standard molecular techniques. The CaMV 35S promoter-driving ureA construct was expressed to produce a 30 kDa protein which was identical with bacterial UreA in size when detected on immunoblot of SDS polyacrylamide gel electrophoresis.

컴프레션 웨어용 경편성 스트레치 소재의 반복세탁이 치수, 의복압 및 신장 특성에 미치는 영향

이효정,이예진,Lee, Hyojeong,Lee, Yejin 한국섬유공학회 2017 한국섬유공학회지 Vol.54 No.5

This research was conducted to analyze changes in physical properties of stretch material for compression ware after repeated laundry and to provide implications regarding management of compression wear. Five types of warp knit most frequently used in market were collected. Basic physical properties of the materials were analyzed. Each material had its % stretch (stretchability) measured. Based on the information, cylinder type were produced by applying 56% and 76% pattern reduction rate as a test specimen. Laundry was repeated for 10, 20 and 30 times. Afterward, area and clothing pressure of the test specimens were measured. Also, rate of measurement change after laundry and changes in stretching properties before and after 30 times of laundry was measured. The result confirmed that the areas of test specimens tend to change not proportionate to rate of measurement change after laundry. Clothing pressure remained without noticeable changes after 10 or 20 times of laundry. But 30 times of laundry decreased clothing pressure of every material by 0.1-0.3 kPa and deteriorated stretch characteristics. It implied that functions of compression ware could be lost or changed by repeated laundry over certain times.

인하대병원 의료서비스 접점에서의 프로세스 혁신사례 (KIOSK 운영과 MY 인하앱중심으로)

이효정 한국서비스경영학회 2021 한국서비스경영학회 학술대회 Vol.2021 No.11

수신사 및 조사시찰단 자료의 DB 구축 과정에 대한 일고찰

이효정,김누리 열상고전연구회 2018 열상고전연구 Vol.62 No.-

수신사(修信使) 및 조사시찰단(朝士視察團)은 1876년부터 1885년까지 10여 년간 5회에 걸쳐 일본에 파견된 수신사와, 1881년 동래암행어사(東萊暗行御史)라는 직함으로 메이지 일본을 시찰하기 위해 파견된 조사시찰단을 가리킨다. ‘수신사 및 조사시찰단 자료 DB 구축 프로젝트’는 이 수신사와 관련된 여러 유형의 자료를 수집하고 해석한 뒤 이를 토대로 종합적인 DB를 구축하는 연구이다. 본 프로젝트에서는 기초적인 데이터의 뼈대-온톨로지(Ontology)-를 설계하는 과정에서부터 연구대상의 성격을 면밀히 파악하여 해당 자료를 구성하는 요소들의 의미적 연관 관계를 전자적으로 기술할 수 있도록 하였고, 나아가 이러한 연관 관계를 시각적으로 나타낸 그래프 데이터베이스를 구상하였다. 또한 번역 대상의 원문과 현대 한국어 번역문을 동일한 스키마(Schema)의 XML 문서로 작성하여 원문의 서술과 번역문의 서술을 동기화하였다. 즉 본 프로젝트의 결과물은 디지털 세계에서의 활용 가능성과 확장 가능성(extensibility)을 우선적으로 고려하여 구축되고 있다. 본 연구의 의의는 결과뿐 아니라 과정 자체에서도 디지털 인문학적 연구수행 방법론을 도입하여, 기존 인문학 DB 구축 방식과는 다른 새로운 협업 시스템을 도입하였다는 데 있다. 위키 소프트웨어를 활용한 집단적 연구 환경 조성과 실시간 소통체계 확립 등이 그 예이다. 즉 디지털 인문학을 활용한 연구는 XML 문서, 시각적 관계망 등 실질적 DB 결과물 구축 단계에서만 적용되는 것이 아니라, 기존 인문학적 연구와의 결합을 통해서 더욱 발전적이고 효율적인 연구방법론으로 나아갈 가능성을 지녔다 할 수 있다. ‘Susinsa’ and 'the 1881 Official Observation Group' mean the Chosun envoys sent to Japan five times from 1876 to 1884-5 and the inspection team as the title of ‘Dong-rae’ royal secret investigator dispatched to inspect the Meiji Japan in 1881, respectively. 'The Project of Data Base (DB) Construction Based on the Records of Susinsa (Chosun’s Envoys Sent to Japan in the Late 19th Century)' is a research designed to collect, translate, and interpret various types of references related to Susinsa, and to build a comprehensive database. This project aimed to electronically describe the semantic relationship of the elements constituting the data from the steps of designing the basic data ontology by closely grasping the nature of the research object. Furthermore, the project was planned to build up a graph database to visualize this relationship. In addition, we synchronized the description of the original text and the translation by writing the original text and the modern Korean translation with the XML document of a same schema. In other words, applicability and extensibility in the digital world will be the priority consideration of this project. The significance of this study is that it introduced a new collaborative system which is different from the preexisting method of the humanities DB construction by adopting digital research methodology of the humanities not only in the results but also in the process. For example, we created a collective research environment using Wiki software and established a real-time communication system. In conclusion, the research using digital humanities has the potential to be applied to the actual stage of DB production such as XML document and visual network, and to guide us to more advanced and efficient research methodology by combining preexisting humanities research.

유아기 아동의 신체개념 향상에 관한 연구

이효정,송주영,Lee Hyo-Jeong,Song Ju-Young 대한물리치료학회 2002 대한물리치료학회지 Vol.14 No.3

This study was to investigate the effects of the sensory-motor training program childhood body concept and to investigate the difference between the control group and experimental group. Subjects of the study were compared with children whose age varied from three to four years old, where I.Q was over 100. The major things of this study was as follows, First, sensory-motor training program was effective with regards to body concept improvement among the three-, four-year-old children. Second, both the experimental group trained by sensory-motor program and the control group trained by cognitive-perceptual training program were revealed a meaningful performance. But, sensory-motor program offering subcognitive sensory body experiences yielded higher mean gains in scores than a cognitive-perceptual program. Sensory-motor learning is more effective than verbal learning is promoting body concept reflected in the ability to draw human figures.

결합형태(집중화/다각화)를 통해 살펴본 합병동기와 기업성과 향상에 관한 실증적 연구

이효정,이윤숙 경성대학교 산업개발연구소 2015 산업혁신연구 Vol.31 No.3

본 연구에서는 기업 간 결합형태(집중화/다각화)에 따른 합병 전후 인수기업의 성과 차이를 실증하고 이러한 결합형태가 피인수기업과 인수기업의 합병 전 기업 성과와 관련이 있는지를 고찰하였다. 한국의 제조업과 IT기업 중 2009년과 2010년에 합병한 129개의 회사들을 대상으로 분석을 실시하였다. 독립변수로 인수기업과 피인수 기업의 결합형태와 인수/피인수 기업의 합병 전 성과를 사용하였고 종속변수로 합병 전 피인수기업의 성과를 고려한 합병 전/후 인수기업의 성과(수익성과 매출액증가율)의 차이를 사용하였다. 회귀분석 결과 결합형태의 차이는 합병 전/후의 기업성과 차이에 유의한 영향력을 보이는 것으로 나타났는데 집중화가 다각화보다 성과향상이 큰 것으로 나타났다. 또한 인수기업이 집중화 혹은 다각화의 선택과 합병 전 인수/피인수기업의 성과와 관련이 있는 지를 살펴보았다. 분석결과 집중화를 택한 기업들의 합병 전 수익성이 다각화를 선택한 기업들보다 낮은 것으로 나타났다. 두 분석의 결과를 종합해보면 합병 전 인수기업의 성과가 좋지 않은 경우 인수기업은 집중화를 통하여 단기간에 효율성과 규모의 경제를 통한 수익성 증대 및 성장을 도모하려는 경향이 나타나고 이는 실제로 합병 직후 단기적으로 기업 성과 향상에 도움이 되는 것으로 보인다. 반면에 다각화를 택한 기업들은 합병 전 상대적으로 수익성이 높은 것으로 나타났는데 이는 비교적 안정적인 수익성을 기반으로 단기적 성과 향상보다는 장기적으로 기업 성장을 위하여 다른 산업에서 새로운 성장 동력을 찾으려고 시도하는 것으로 사료된다. In this study, we explore the relationships among merge motive, merge types(related/unrelated) and financial performance improvement after acquisition. Based on extensive literature review, we propose hypotheses that the different motives are closely related to merge types and firm performance of pre and post acquisition. We empirically test our hypotheses based on sample data including 129 target-acquirer dyad firms. We conduct multiple regression and t-test analyses to verify the hypotheses. The post acquisition performance of the acquirers is our dependent variable that is measured with the changes in ROS and sales growth before and after acquisition. Merge types, related and unrelated are independent variables. Our findings indicate the following: First, related merge firms record better improvement of performance than unrelated merge. Second, acquires tend to select unrelated merge when their prior profitability is positive. The results imply that prior performance, merge types and performance improvement are related each other. To understand the relationship between acquisition and performance, we should consider the difference of merge motives, closely related to prior acquirers' performance and merge types.