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      • KCI등재

        Facial Augmentation by Intra-Oral Delivery of Autologous Fat

        Libby R. Copeland-Halperin,Michelle Copeland 대한미용성형외과학회 2016 Archives of Aesthetic Plastic Surgery Vol.22 No.1

        As harvesting techniques have improved the viability of transposed adipose tissue, autologous fat transfer is increasingly utilized for facial augmentation. Conventional techniques involve placing harvested fat deep in subcutaneous tissue through skin punctures. Trans-oral fat injections at the buccal and labial sulci and through the mucosa of the oral commissures obviate external scars. We report experience with this technique for augmentation of the cheeks, zygomatic arch, nasolabial folds, upper and lower lips, and chin in 130 patients over a 14-year period. We report an observational case series of 147 procedures performed in 130 patients (118 women and 12 men, 19–69 years of age) in which 10 to 60 mL autologous fat supernatant harvested from the hips, buttocks, or abdomen were injected through the oral mucosa for augmentation. Single preoperative doses of antibiotic and methylprednisolone were administered in all cases. Fat frozen and banked during initial treatments was used for additional augmentation 3 to 6 months after initial treatments in 46% of cases. Outcomes were assessed clinically with physical exams and photographs. Mucosal puncture wounds healed uneventfully. Most patients tolerated the procedures well and recovered rapidly compared to historical experience with conventional percutaneous techniques. One patient developed a sterile seroma 3 weeks after facial augmentation that responded to needle aspiration. Transmucosal, intra-oral autologous fat grafting was associated with minimal visible scarring, swelling, or infection at the recipient site. This technique may be considered an alternative to percutaneous transfer for proximate peri-oral facial augmentation.

      • Superficially Invasive Cervical Carcinoma of the Cervix

        Copeland, Larry J. 中央醫學社 1996 中央醫學 Vol.61 No.10

        The evolution of treatment patterns for various diseases is subject to a number of factors and may demonstrate significant geographic variance. With regard to microinvasive carcinoma of the cervix, it is not surprising that we continue to debate the appropriate treatment since the international definition of microinvasion continues to be the subject of frequent change and considerable controversy. In 1994 the International Federation of Gynecology and Obstetrics(FIGO) again altered the staging for superficially invasive cervical carcinoma(stage IA), deleting the "minimal invasion" category and replacing it with "less than 3 mm". This change seems to be an attempt to satisfy the many clinicians who are focused on the 3 mm cut-off for microinvasion and who are not comfortable with conservative treatment for the 5 mm/7 mm definition. The lack of prospective randomized trials has not inhibited the creation of strong opinions both with regard to the definition for microinvasion and on the most appropriate treatment for this entity. In general, clinicians in the United States have been reluctant to accept the Europeanbased recommendation that tumor volume be used to predict the biologic aggressiveness of superficially- invasive cervical carcinomas1) . It is my understanding that the reluctance to use tumor volume is based on two issues i) the practical limitations of accurately measuring the three dimensions of a microcarcinoma, and ii) resistance to relinquish the 3 mm depth as the critical measurement. In 1985, FIGO appeared to be sensitive to the technical problem of identifying tumor volume for these tumors, and their 1985 stage IA2 lesion was described as "a preclinical lesion with no more that 5 mm depth of invasion and a horizontal spread not to exceed 7 mm2. The contemporary technique for processing cone biopsy specimens provides direct measurement of both the depth of invasion and the radial horizontal spread. Despite easy access to the radial horizontal spread, few contemporary US studies provide details of this measurement. Even if the radial horizontal spread is less than 7 mm. there is no assurance that the lesion is symmetrical and the circumferential horizontal spread may be in excess of 7 mm. A gross estimate of limited circumferential spread would be to exclude lesions close to the endocervix that involved more than two quadrants of sections and to also exclude peripheral lesions that involved more than one quadrant of sections. However, these estimates are also subject to inaccuracies secondary to the size of the cervix and the size of the cone biopsy. It is difficult to draw exacting conclusions from retrospective studies in general. Retros- The analysis of microinvasive cervical carcinoma is very difficult and not surprisingly continues to be one of great controversy. The clinical data from every report on microinvasive carcinoma of the cervix deserves the most skeptical of analysis if we are to arrive at any useful conclusions. For the foreseeable future treatment recommendations must be based on conflicting data that is subject to individual biases and preconceived opinions. With current pathologic techniques and the imbedded opinions about treatment preferences, there is little hope for a prospective multi -institutional randomized treatment trial.

      • KCI등재

        Using a Video Lecture and Online Discussion to Flip an EFL Pronunciation Class

        Copeland Charles 영상영어교육학회 2019 영상영어교육 (STEM journal) Vol.20 No.4

        This case study explores the flipped classroom and how it can be used to allow for more activities in the English as a foreign language (EFL) classroom allowing students the opportunity to practice their pronunciation while the teacher was present. The study surveyed 82 university EFL students about their perceptions of various activities which made up the online and in-class portions of the course. Bloom’s Taxonomy of Educational Objectives (Krathwohl, 2002) and the Community of Inquiry (Garrison, Anderson, & Archer, 1999) informed the design of the course delineating what should be flipped from the classroom. Students were given a mixed methods survey which was analyzed through descriptive statistics and analysis of the comments. While the majority of the students enjoyed the flipped classroom, there were a number of resistors. The survey revealed that the students liked the in-class activities, the online videos, and the online quizzes. This indicates that a higher level of Bloom’s Taxonomy of Educational Objectives was perceived as being reached. However, the students had reservations about the online discussion indicating that Community of Inquiry was not being fully realized. Students also had some reservations about the amount of in-class lecture, and the use of the technological system.

      • SSCISCOPUSKCI등재
      • KCI등재

        Student Perceptions of the Fairness of Video Presentation Grading in the Online EFL Classroom

        Copeland Charles 영상영어교육학회 2021 영상영어교육 (STEM journal) Vol.22 No.4

        This qualitative case study, which employed thematic analysis, explores student perceptions about the fairness of grading video presentations in an online EFL Korean classroom. The study surveyed 145 students about their attitudes towards the fairness of grading for video presentations using three open-ended questions. To better understand the students’ thoughts, they were asked what most affected the fairness of grading live versus video presentations. It found that students believed that the use of video presentations in the required classroom was fair. The students cited a clear, understandable rubric, hard work resulting in the deserved grade, the best material could be submitted, the video could demonstrate ability without nerves, and the teachers’ grading as reasons the grading was deemed fair. There were also some negative perceptions related to the fairness of grading. The two registered were using cheats and not having a fair playing field in terms of technology. The study also found that the main factors affecting video versus live presentations were the fear of live presentations, preparation time, technology use, and the teachers’ grading. The results from the survey indicated that student-produced video presentations should be considered in the future.

      • KCI등재

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