• 복식문화연구
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• 제26권3호
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• pp.450-470
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• 2018

This study examined the risk components and risk types perceived in the context of purchasing decisions of paper fashion products. This study also identified the levels of perceived risk by consumers and the differences between age groups in risk perception. First, qualitative data were collected through a focus group interview with 7 Korean females in their 20s to 50s. The interviewees were presented with two types of paper materials (undyed and dyed Jumchi-Hanji) and products (bags and wallets) made with the papers. The interviewees mentioned 11 risk components which were classified into five types of risks: performance (easily torn/lack of durableness, lint/pilling/wear-out, lack of water-resistant, no washability, and deformation and discoloration over time), social-psychological (old and traditional image), aesthetic (lack of design diversity, unsatisfactory appearance due to repair), financial (expensive price, lack of usability in daily life) and time/convenience (difficulty in handling) risks. Based on the results of the interview, a measurement for evaluating the risk perception of paper fashion products was developed. Second, quantitative data were collected from 64 Korean women in their 20s to 50s using the measurement. Respondents who were presented with the paper materials and the products perceived the performance risk more strongly than the social-psychological risk and aesthetic risk. In addition, differences between age groups were found: younger respondents perceived performance risk and social-psychological risk more strongly than older respondents, but older respondents perceived financial risk more than younger respondents. Based on this study, strategies for the risk reduction of paper fashion products were proposed.

• 한국축산식품학회지
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• 제35권5호
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• pp.646-652
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• 2015

The beef forequarter muscle comprises approximately 52% of carcass weight. The objective of this study was to evaluate the physiochemical characteristics and meat color from forequarter muscle of Holstein steers. Fifteen forequarter muscles were trimmed of external connective tissue and fat. An experimental group of eight Holstein steers was assessed using meat color, water-holding capacity, drip loss, and Warner-Bratzler shear force value at the same quality grade. The M. omotransversarius (0.45 kg) had the highest (p<0.05) lightness (L*) value, whereas the M. teres major (0.4 kg) and M. triceps brachii (caput laterale) (0.52 kg) had the lowest (p<0.05) values. The M. semispanitus capitus (1.48 kg), which is a neck muscle, had the highest values for both redness (a*) and yellowness (b*), whereas the lowest (p<0.05) values were for the M. teres major. The M. omotransversarius, M. latissimus dorsi (1.68 kg), and M. rhomboideus (1.2 kg) were ranked high (p<0.05) in water-holding capacity. The drip loss value was the highest for the M. longissimus dorsi thoracis (p<0.05; 1.86 kg), while the M. infraspinatus (2.28 kg), M. supraspinatus (1.38 kg), M. brachiocephalicus (1.01 kg), and M. pectoralis superficialis (1.18 kg) had the lowest (p<0.05). The Warner-Bratzler shear force value indicated that the M. pectoralis profundus (3.39 kg), M. omotransversarius, and M. brachiocephalicus were the toughest (p<0.05), whereas the M. subscapularis (0.86 kg), M. longissimus dorsi thoracis, M. teres major, and M. infraspinatus were the most tender cuts (p<0.05). Here, muscle type explained most of the variability in the forequarter physiochemical characteristics. Thus, our findings suggest that these muscle profile data will allow for more informed decisions when selecting individual muscles to produce value-added products from Holstein steers.

• 종양간호연구
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• 제10권2호
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• pp.218-230
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• 2010

Purpose: This study was conducted to develop the telecommunication guideline that was possible to make the immediate, logical decisions and to evaluate the possibility of the use by verifying it from the specialists' group. Methods: Telecommunication guideline was designed with selected six symptoms which were pain, dyspnea, nausea/vomiting, diarrhea, fever, and cough based on the results of literature. Results: This study showed that the patients understood well about the contents of the questions, examination, and education. Also, 85% of them fulfilled the guidelines of the adjustment and more of them were satisfied with the results shown to all of them compared to the previous telecommunication. And 95% of them replied that the information from the telecommunication was more useful than any other information sources related to the information of cancer and self management that were used previously. Conclusion: The telecommunication was considered to complement the weakness during the time the cancer patients spent at home after the treatments. Also, it was expected to be a role as an immediate and comprehensive method of decision making and a passage for information supply which was considered the specialty of individual patient related to an inquiry of the self management.

• Clinical and Experimental Pediatrics
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• 제57권4호
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• pp.186-192
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• 2014

Purpose: The prevalence of macrolide-resistant Mycoplasma pneumoniae (MRMP) has increased worldwide. The aim of this study was to estimate the proportion of MRMP in a tertiary hospital in Korea, and to find potential laboratory markers that could be used to predict the efficacy of macrolides in children with MRMP pneumonia. Methods: A total of 95 patients with M. pneumoniae pneumonia were enrolled in this study. Detection of MRMP was based on the results of specific point mutations in domain V of the 23S rRNA gene. The medical records of these patients were reviewed retrospectively and the clinical course and laboratory data were compared. Results: The proportion of patients with MRMP was 51.6% and all MRMP isolates had the A2063G point mutation. The MRMP group had longer hospital stay and febrile period after initiation of macrolides. The levels of serum C-reactive protein (CRP) and interleukin-18 in nasopharyngeal aspirate were significantly higher in patients who did not respond to macrolide treatment. CRP was the only significant factor in predicting the efficacy of macrolides in patients with MRMP pneumonia. The area under the curve for CRP was 0.69 in receiver operating characteristic curve analysis, indicating reasonable discriminative power, and the optimal cutoff value was 40.7 mg/L. Conclusion: The proportion of patients with MRMP was high, suggesting that the prevalence of MRMP is rising rapidly in Korea. Serum CRP could be a useful marker for predicting the efficacy of macrolides and helping clinicians make better clinical decisions in children with MRMP pneumonia.

• 대한가정학회지
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• 제46권5호
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• pp.63-71
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• 2008

The purposes of this study were (1) to analyze the absolute and relative importance of tourists' choice attributes of restaurants and (2) to compare tourists' choice patterns with the prediction of restaurant operators in the tourism provinces of Gangwon-do, Empirical data for this study were collected from the 77 tourists and 66 restaurants operators. The attributes and attribute levels for the hypothetical profiles were decided from a focus group interview and 15 profiles were selected from fractional factorial designs. The SPSS/WIN 12,0 conjoint procedure was used to calculate the utility scores and simulate the profiles, According to the analysis on the relative importance of tourists' choice attributes of restaurants, food taste was the most important attribute(36.9%), followed by facility cleanliness(28.5%), dishes cleanliness(24.5%), price(19.3%) and service(18.3%). The tourists' ratings of the importance of the individual attributes differed from the ranking of the relative importance of the same attributes as derived from the conjoint analysis. The operators rated dishes cleanliness(27.6%) as also important, followed by food taste(27.7%), in choosing a restaurant Tourists' preference and operators' prediction of hypothetical profiles showed significant difference in L(p < .05), O(p < .01), M(p < .05), and H(p < .01) restaurants. Operators who want to differentiate themselves from their competitors should make decisions based on an increased understanding of tourists' restaurant choice decision process and measure the latent needs of tourists in the tourism provinces.

• 한국의류학회지
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• 제40권6호
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• pp.1150-1163
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• 2016

This study makes use of meta-analysis to statistically integrate the quantitative results of individual research on the influence of fashion product attributes on purchase; in addition, this study utilizes the effect sizes of correlation coefficients. This study was based on 24 individual studies from January 2000 to March 2015. The meta-analysis analyzed 91 effect sizes and 24 studies and calculated the correlation coefficient effect sizes. A random effect model was employed for meta-analysis because the results for the homogeneity test indicated that the effect sizes of each research were heterogeneous. The analysis results are as follows. First, when the total effect sizes of the fashion product attributes that influence clothing purchase decisions were calculated as .256; this indicated that the effect size is slightly below the mid-sized level. Second, upon examining the effect sizes of the categorized fashion product attributes, the intrinsic attributes yielded .222, extrinsic factors yielded .235, and the compiled attributes yielded .420; this demonstrated that the compiled attributes have a larger effect size than individual attributes. Third, when they were measured by the characteristics of study targets, they were larger for a mixed-gender group than women as well as for ordinary citizens than university students. When the effect sizes were measured based on the characteristics of fashion products as suggested in the study, there were significant differences with respect to sportswear, followed by SPA brand clothing, general clothing, fashion accessories, and designer clothing. The cases where the clothing were purchased in non-retail stores were found to have a slightly larger effect size than those of offline retail stores when the effect sizes were measured based on purchase routes; however, the difference was not statistically significant. Next, an investigation of the trend of effect sizes based on published year via the meta regression analysis indicated slightly larger effect sizes as shown in more recent publications, but this was not statistically significant.

• Journal of Electrical Engineering and Technology
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• 제13권3호
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• pp.1069-1078
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• 2018

Demand response (DR) programs give opportunity to consumers to manage their electricity bills. Besides, distribution system operator (DSO) is interested in using DR programs to obtain technical and economic benefits for distribution network. Since small consumers have difficulties to individually take part in the electricity market, an entity named demand response provider (DRP) has been recently defined to aggregate the DR of small consumers. However, implementing DR programs face challenges to fairly allocate benefits and payments between DRP and DSO. This paper presents a procedure for modeling the interaction between DRP and DSO based on a bilevel programming model. Both DSO and DRP behave from their own viewpoint with different objective functions. On the one hand, DRP bids the potential of DR programs, which are load shifting and load curtailment, to maximize its expected profit and on the other hand, DSO purchases electric power from either the electricity market or DRP to supply its consumers by minimizing its overall cost. In the proposed bilevel programming approach, the upper level problem represents the DRP decisions, while the lower level problem represents the DSO behavior. The obtained bilevel programming problem (BPP) is converted into a single level optimizing problem using its Karush-Kuhn-Tucker (KKT) optimality conditions. Furthermore, point estimate method (PEM) is employed to model the uncertainties of the power demands and the electricity market prices. The efficiency of the presented model is verified through the case studies and analysis of the obtained results.

• 대한공업교육학회지
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• 제33권1호
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• pp.213-232
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• 2008

이 연구의 목적은 멀티미디어 기술을 활용한 프로젝트 학습전략을 개발하고, 수업현장에 적용하여 그 효과에 대한 학습자들이 인식과 시사점을 제시하는 것이다. 이 연구는 J기계공업고등학교 환경에서 시행된 현장연구이다. 연구 대상은 3학년 100명을 대상으로 하였다. 자료는 관찰, 설문조사, 인터뷰를 통하여 수집되었고, 백분율로 처리 되었다. 결론적으로 멀티미디어 기술을 활용한 프로젝트 학습 효과로서 전공교과내용의 종합적 이해, 컴퓨터 멀티미디어 처리능력과 자료 탐색 및 조직 능력이 향상된 것으로 학습자들은 인식하였다. 또한, 학습 동기, 학습자들 간의 협동 활동, 학습 참여 정도, 학습의 만족감, 학습에 대한 자신감, 학습자들 간의 상호작용과 학습 흥미 등이 높아진 것으로 학습자들은 인식하고 있음을 알 수 있었다. 마지막으로 연구의 시사점과 제언을 제시하였다.

• 한국콘텐츠학회논문지
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• 제21권11호
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• pp.414-425
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• 2021

본 연구의 목적은 BRICS 국가들의 평생교육체제의 경쟁력을 측정하고 분석하는 것이다. 이를 위해 기존 개발도상국의 NLLS 시스템을 측정하기 위해 개발된 메커니즘 모형 및 32개의 지표와 12개의 하위요소를 측정에 이용하였다. GLLI(Global Lifelong Learning Index) 측정결과, 중국과 러시아가 상대적으로 강세를 나타냈고, 브라질, 남아공이 중간그룹을 형성하였다. 인도는 상대적으로 가장 낮은 점수를 기록하였다. 그러나 국가마다 중점을 두어야 할 평생교육 분야가 있으며, 본 연구에서는 각 BRICS 국가들의 평생학습 체제의 강점 및 약점을 비교분석하였다. 본 연구는 평생교육과 관련된 정책을 평가하고 NLLS 경쟁력을 높이기 위한 의사 결정의 준거 및 BRICS 국가의 NLLS 현황을 알 수 있는 기초자료로 활용될 것으로 기대된다.

• 융합정보논문지
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• 제9권2호
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• pp.75-84
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• 2019

연구의 목적은 미국 온라인 쇼핑몰에서의 고객 충성도에 영향을 미치는 변인들을 분석해보는 것이다. 이를 위해 본 연구는 사이트 품질, 사이트에 대한 만족, 태도 그리고 충성도의 관계를 살펴보기 위한 모형을 제안하고, 구조모형방정식을 통해 이를 검증하였다. 미국 소비자 280명의 샘플을 분석에 사용하였으며, AMOS 20.0을 이용하여 확인적 요인분석과 구조방정식 모형 분석을 실시하였다. 제안된 연구 모형은 비교적 양호한 적합도를 보였다. 사이트 품질 중 이용 용이성과 정보 품질은 만족에 긍정적인 영향을 미쳤다. 특히 정보 품질은 태도에도 긍정적인 영향을 미쳐 만족과 태도에 중요한 변수임을 확인하였다. 만족은 태도와 충성도에 유의한 영향을 미쳤으며, 태도 역시 충성도에 유의한 영향을 미쳤다. 즉 사이트에 대한 고객 만족과 호의적인 태도 형성이 결국 사이트의 충성으로 이끌 것이라는 점을 확인하였다. 본 연구는 미국 소비자들의 e-충성도에 대한 이론적 시사점을 제시하였으며, 이를 토대로 실천적인 마케팅 전략이 제안될 수 있다는 점에서 의의가 있다.