• 한국컴퓨터정보학회논문지
• /
• 제29권3호
• /
• pp.165-171
• /
• 2024

본 연구는 2급 응급구조사가 호흡부전 및 호흡정지 환자에게 백-밸브 마스크(BVM) 인공호흡 시 호흡량 측정기를 사용하여 적정량의 호흡량과 및 성공률을 알아보고자 한다. 연구는 2023년 12월 11일부터 12일까지 D 대학교에 재학 중인 2급 응급구조사를 대상으로 20명을 선정하여 10명은 호흡량 측정기를 이용하여 BVM 인공호흡을 교육한 실험군으로, 다른 10명은 호흡량 측정기 없이 BVM 인공호흡을 교육한 대조군으로 선정하여 2분간 인공호흡을 제공하는 실험을 하였다. 연구 결과, 대조군에서는 정확한 호흡량을 제공하지 못하였고(p=.025), 호흡 성공률 역시 실험군에서는 2분간 호흡 성공률이 높았으나 대조군에서는 유의한 차이를 보였으며(p=.001), 주관적 호흡량과 측정된 객관적 호흡량이 대조군에서 유의한 차이를 보였다(p=.010). 따라서 호흡량 측정기를 사용한 교육은 2급 응급구조사가 느끼는 주관적 호흡량을 객관적 호흡량과 일치시키고 호흡 성공률을 높여 호흡부전 및 호흡정지와 심폐소생술 시 심장정지 환자의 생존율을 높이는 데 도움이 될 것이다.

• Journal of Animal Science and Technology
• /
• 제59권4호
• /
• pp.7.1-7.13
• /
• 2017

Background: Selenium is one of the trace minerals whose deficiency is known to lead to complications of female reproduction. The identified gaps in researches regarding selenium and pregnancy include optimizing the dosage of selenium supplementation, timing of supplementation, finding the best form and type of selenium, and selenium administration combined with other antioxidants. Hence, this study was conceptualized to address one of the identified gaps, that is, to find out the best timing of selenium administration around the time of pregnancy. Specifically, this study aimed to assess the effects of maternal Selenium-supplementation, administered at various stages of periconception period, on murine blastocyst morphology, percent occurrence of good quality blastocysts, and implantation status. Methods: ICR female mice were randomly assigned into the unsupplemented group (Group I) receiving basal diet without selenium, and treatment groups given with $3.0{\mu}g$ selenium-supplement per day during pregestation only (Group II), pregestation-throughout-gestation (Group III) and gestation only (Group IV). Both blastocyst morphology and implantation status were assessed. Results: The morphometric measurements of blastocysts appeared to be unaffected by selenium-supplementation at different stages of periconception. Selenium-supplementation at pregestation only (Group II) and gestation only (Group IV) produced higher percent occurrence of good quality blastocysts and lower percent pre-implantation loss than Group III. Among all the treatment groups, Group III (Selenium-supplementation during pregestation-to-gestation) yielded the lowest quality blastocysts and highest percent pre-implantation loss. Conclusion: Maternal selenium-supplementation during pregestation and gestation stages of the periconception period yielded a high percent occurrence of good quality blastocysts and pre-implantation success.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• 제30권6호
• /
• pp.518-528
• /
• 2008

Purpose: The long-term experience of using osseointegrated implants for prosthetic rehabilitation of the edentulous patients shows that high success rates can be predictably achieved. Primary implant stability has been identified to be a prerequisite to achieve osseointegration. In this study, we set up the amount of removed bone so that it differed on implant installation site for each group. The influence of each initial stability on secondary stability and osseointegration was compared with time lapse using resonance frequency analysis and histomorphometric analysis. Materials and methods: A total 27 US $II^{(R)}$ (Osstem, Korea) implants were placed in the mandibular edentulous area of 3 beagle dogs. The implant site was prepared by the conventional technique with drills, and three experimental groups were divided into under-drilling group, normal-drilling group and over-drilling group. The Implant Stability Quotient (ISQ) was measured at intervals of immediately, 4, 8, 12 weeks after placement using $Osstell^{(R)}$ mentor RFA. After the animals were sacrificed, histomorphometric evaluation was executed for measuring BIC and BD. Results: 1) The under-drilled group showed most high ISQ value for whole experiment period. 2) Bone-to-implant-contact(BIC) showed the tendency to be increased gradually as the experiment period passed except the 8 weeks of the normal group. 3) The under-drilled group showed most high bone density(BD) level for whole experiment period, and it was expressed the aspect to be increased gradually according to an experiment period passage in the average of all group. 4) Resonance frequency analysis and histomorphometric analysis are presumed by generally proportional. Conclusions: As this research result, it seems that there are some correlation between resonance frequency analysis and histomorphometric analysis. As are accomplished osseointegration stably so that more superior at the region which the overpressure comes to add, it will be applicable method in clinical field.

• 대한가정학회지
• /
• 제36권11호
• /
• pp.73-90
• /
• 1998

During the period of 1950s and 1960s extreme changes in political, economic, social and cultural environments had a great influence on family ethics, since the western civilization had been introduced to this nation in late 19th century. This paper studied the family ethics during the above periods by interviewing elders(average age 77) who had couple relations at that time focusing the followings. During the period, ① what is the view of family? ② what are the actual sapects and characteristics of married couple ethics? ③ what are the actual aspects and characteristics of the ethics between parents and their children? The results of this study are as follows; ① The indispensable requisite of the parents is a son who functions as the tool for enhancing social position of their family rather than succession of them. The nuclear family is regraded ideal, but the concept of nuclear family of them is far different from that of western. ② The married couples accepts the given couple relations in the name of bringing up their children. The ideal image of wife is traditional wifely virtues and that of husband is ability of making money. ③ The parents emphasize education and success of their children for enhancing the social position of their family, while they still require some degree of moral standards to their children. The parents believe that the best filial piety is making good lives of their children's own, which is somewhat different from the traditional filial piety norm.

• 한국콘텐츠학회논문지
• /
• 제7권5호
• /
• pp.118-127
• /
• 2007

부산국제영화제(PIFF)는 2006년 제11회를 맞았으며, 영화제의 역사는 10년이 넘었다. 제1회 부산국제영화제부터 3회 영화제까지는 시작단계였다. 제4회 대회부터 6회 대회는 안정단계, 7회부터 9회까지는 2차 발전단계를 거쳐 10회는 새로운 전환의 단계이다. 현재 부산국제영화제는 미래를 위한 새로운 길을 모색하고 있다. 부산국제영화제는 부산에서 개최되고 있으며 동 조직위원회는 지역사회와 학계에 도움을 요청하고 있다. 부산국제영화제의 성공을 위해 이 논문은 몇 가지 결론을 제안하고 있다. 가장 중요한 일은 부산국제영화제의 정체성에 관한 질문이다. 이 논문은 이를 바탕으로 영화제의 성공을 위한 몇 가지 제안을 하고자 한다.

• 한국게임학회 논문지
• /
• 제12권6호
• /
• pp.71-82
• /
• 2012

글로벌 환경 속에서 기업의 경쟁력을 갖는 요인으로는 우수한 인재를 확보하는 것이 매우 중요하다. 특히, 과거의 제조 산업이 발달했던 시기와는 달리 지식서비스 산업이 발달한 오늘날에는 우수인재의 확보가 기업의 성공과 실패를 결정하는 매우 중요한 요소가 되고 있다. 이에 따라, 기업은 인재채용에 많은 돈을 투자하고 있으며 인재의 훈련, 관리, 평가 등 전주기적인 측면에서 체계적으로 인재를 관리하고 있다. 본 연구는 '인재채용 기능성 게임' 개발에 관한 연구로 기업에서 필요로 하는 인재선발과 관련한 미션을 일정기간동안 수행 후 정량, 정성적 평가를 통해 실제 면접과 취업의 기회가 주어지는 독특한 특징을 갖는 게임을 제안한다.

• 디자인학연구
• /
• 제17권4호
• /
• pp.129-140
• /
• 2004

게임 개발은 상당히 혼란스럽고 예측하기 힘든 과정으로 이루어져 있다. 경쟁력 있는 게임 개발을 위해서는 게임 개발 기간은 단축되어야 하며 개발 비용 또한 줄어야 한다. 이를 위해서 게임 제작 과정에서 게임 개발 기간과 제작 비용을 줄이기 위해서 기획자, 프로그래머, 그래픽 디자이너, 그리고 투자자의 상호이해 및 의사소통을 원활히 하는 도구로서 프로토타입일 필요하다. 본 연구에서는 팀원들의 커뮤니케이션과 피드백 도구로서 프로토타입이 실제 제작 단계에서 어떻게 사용되어지는가에 대한 구체적인 사례들을 제시하였다. 게임 컨텐츠 종류에 따른 프로토타입의 특징을, 게임 기획 단계에서 피드백을 받기 위해 짝되어지는 프로토타입을, 제임 제작 단계에서 주요 요소가 협력하여 개발될 수 있는 도구로서의 프로토타입을 제시하였다.

• The Journal of Advanced Prosthodontics
• /
• 제7권4호
• /
• pp.329-337
• /
• 2015

PURPOSE. This retrospective study aims at the evaluation of implant-supported overdentures (IODs) supported by ceramo-galvanic double crowns (CGDCs: zirconia primary crowns + galvano-formed secondary crown). MATERIALS AND METHODS. In a private practice, 14 patients were restored with 18 IODs (mandible: 11, maxilla: 7) retained by CGDCs on 4 - 8 implants and annually evaluated for technical and/or biological failures/complications. RESULTS. One of the 86 inserted implants failed during the healing period (cumulative survival rate (CSR) implants: 98.8%). During the prosthetic functional period (mean: $5.9{\pm}2.2years$), 1 implant demonstrated an abutment fracture (CSR-abutments: 98.2%), and one case of peri-implantitis was detected. All IODs remained in function (CSR-denture: 100%). A total of 15 technical complications required interventions to maintain function (technical complication rate: 0.178 treatments/patients/year). CONCLUSION. Considering the small sample size, the use of CGDCs for the attachment of IODs is possible without an increased risk of technical complications. However, for a final evaluation, results from a larger cohort are required.

• 대한전기학회논문지:전력기술부문A
• /
• 제55권10호
• /
• pp.410-417
• /
• 2006

Generally, the training set of maximum $m{\times}L(m+f)$ patterns in the pattern recognition method is required for the real-time bus reconfiguration strategy when a main transformer fault occurs in the distribution substation. Accordingly, to make the application of pattern recognition method possible, the size of the training set must be reduced as efficient level. This Paper proposes a methodology which obtains the minimized training set by applying the pattern clustering method to load patterns of the main transformers and feeders during selected period and to obtain bus reconfiguration strategy based on it. The MaxMin distance clustering algorithm is adopted as the pattern clustering method. The proposed method reduces greatly the number of load patterns to be trained and obtain the satisfactory pattern matching success rate because that it generates the typical pattern clusters by appling the pattern clustering method to load patterns of the main transformers and feeders during selected period. The proposed strategy is designed and implemented in Visual C++ MFC. Finally, availability and accuracy of the proposed methodology and the design is verified from diversity simulation reviews for typical distribution substation.

• Journal of Periodontal and Implant Science
• /
• 제36권4호
• /
• pp.925-938
• /
• 2006

The aim of this study was to systematically investigate the complications of single implant-supported restorations followed more than 5-year. Thirty-five studies were selected for the systematic review. A total of 3932 single implants were included at the beginning of studies. Thirty-one implants were removed before loading and 91 implants after loading. The overall implant loss rate was 3.1 %. Implant losses were concentrated on the period between loading and 2-year follow-up, and, after a stable period, increased after 5-year follow-up. The mean marginal bone loss at single-tooth implants was well within 0.2 mm/year, i.e., acceptable annual bone loss by the implant success criteria. However, considerable amounts of single implants suffered a marginal bone loss at implant more than 0.2 mm/year. Fistula was a frequent biological complication in the early studies. The most frequent technical problem was a screw loosening, but its frequency was reduced after the use of a gold screw and torque controller. Within the limits of this study, the complications of single implants might be underestimated due to the lack of information about the biological and technical complications available in the relevant literature.