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FASHION CONSUMERS' ACCEPTANCE OF RETAIL TECHNOLOGY: A META-ANALYSIS OF TAM IN FASHION RETAIL CONTEXT
Yoon-Jung Lee,Eunju Ko,Ho Jung Choo 글로벌지식마케팅경영학회 2015 Global Fashion Management Conference Vol.2015 No.06
The information technology has affected many aspects of retail world as in other areas of human life. This makes understanding consumers’ acceptance and usage of such technological innovations a critical task for both retail businesses and scholars alike. The technology acceptance model (TAM; Davis 1989) is one of the most widely adopted theoretical frameworks for explaining and predicting consumers’ acceptance of technology. Implementing the meta-analysis method, this study aimed at testing the validity of TAM for understanding consumers’ attitudes and behaviors toward the various technologies adopted in fashion retail stores and online commerce sites. Specifically, the effect sizes of two TAM antecedents of perceived usefulness (PU) and ease of use (PEOU) were estimated and compared. Moderating factors that affect the effect sizes of PU and PEOU on attitudes and behaviors were also explored. A meta-analytical SEM methodology was expected to deliver more thorough and valid test of the model than single sample studies, because accumulation of multiple samples through meta-analysis would bolster the test's statistical power (Hom et al., 1992). A sample of studies on consumers’ acceptance of retail technology in fashion retail context that adopted the TAM model were collected through a systematic search through the databases such as EBSCO, Google Scholars, and Dissertation Abstracts. Efforts were made to include unpublished studies to avoid publication bias. A total of 31 published and unpublished research reports that allowed the calculation of effect sizes of the key paths in the model were included in the final analysis. The effect sizes were calculated out of the identified samples, and the homogeneities of the effect sizes were tested using comprehensive meta-analysis software. The types of technology, product type (apparel vs. general merchandise), subject characteristics (gender; country; student vs. general), and study setting (actual experience vs. simulated situation) were considered as moderators to explain for the variances in correlations among variables. Finally, a meta-SEM model was tested on the aggregated data using AMOS.
윤혜영,고은주 대한가정학회 2004 Human Ecology Research(HER) Vol.42 No.2
The purpose of this study was to examine the current situation of B2B fashion buying behavior (i.e., buying motives, product characteristics, buying processes), and to analyze the buying performance, buying problems and buying strategies. In depth, face-to-face interviews with structured questionnaire were conducted with three buyers and three vendors related to 18 buying items of C Company. Results of this research were as following: I. Buying motives were mainly reduction of buying costs, improvement of profits, and increased efficiency in buying process for retail buyers, while the selling motive was mainly improvement of market share for suppliers. Suitable items for B2B buying were basic items or bulk items. The B2B buying process included the following steps: selecting auction items, m e t prices, and suppliers; setting the product specification and bidding rules; training the suppliers for preparing the auction; proceeding the auction by internet. 2. The perceived B2B benefits for buyers were profit improvement and cost reduction while those for suppliers were time saving and market share improvement. The indicated buying problems were as poor product quality, low product image, and difficulty in partnership. For B2B buying strategies, a quality management system, various auction tactics based on items, and a supplier management system were recommended.
AKT1-targeted proapoptotic activity of compound K in human breast cancer cells
Eunju Choi,Eunji Kim,김지혜,Keejung Yoon,Sunggyu Kim,Jongsung Lee,Jae Youl Cho 고려인삼학회 2019 Journal of Ginseng Research Vol.43 No.4
Background: Breast cancer is a severe disease and the second leading cause of cancer death in womenworldwide. To surmount this, various diagnosis and treatment options for breast cancer have beendeveloped. One of the most effective strategies for cancer treatment is to induce apoptosis using naturallyoccurring compounds. Compound K (CK) is a ginseng saponin metabolite generated by humanintestinal bacteria. CK has been studied for its cardioprotective, antiinflammatory, and liver-protectiveeffects; however, the role of CK in breast cancer is not fully understood. Methods: To investigate the anticancer effects of CK in SKBR3 and MDA-MB-231 cells, cell viability assaysand flow cytometry analysis were used. In addition, the direct targets of CK anticancer activity wereidentified using immunoblotting analysis and overexpression experiments. Invasion, migration, andclonogenic assays were carried out to determine the effects of CK on cancer metastasis. Results: CK-induced cell apoptosis in SKBR3 cells as determined through 3-(4-5-dimethylthiazol-2-yl)-2-5-diphenyltetrazolium bromide assays, propidium iodide (PI) and annexin V staining, and morphologicalchanges. CK increased the cleaved forms of caspase-7, caspase-8, and caspase-9, whereas the expressionof Bcl-2 was reduced by CK. In assays probing the cell survival pathway, CK activated only AKT1 and notAKT2. Moreover, CK inhibited breast cancer cell invasion, migration, and colony formation. Throughregulation of AKT1 activity, CK exerts anticancer effects by inducing apoptosis. Conclusion: Our results suggest that CK could be used as a therapeutic compound for breast cancer.
Eunju Kim,Seong Bum Kim,Youl Chang Baek,Min Seok Kim,Changyong Choe,Jae Gyu Yoo,Younghun Jung,Ara Cho,김수희,Yoon Jung Do 한국동물위생학회 2018 韓國家畜衛生學會誌 Vol.41 No.4
Rumen cannulation is used for nutritional and microbiological research, clinical diagnosis, and rumen component transfaunation. However, the cannulation procedure can affect parameters such as complete blood count findings, serum chemistry, and rumen fluid pH. The objective of this study was to evaluate the health risks related to the rumen cannulation procedure over a 1-month period. We did not identify significant differences in red blood cell numbers or morphologies between pre- and postoperative timepoints. Moreover, no inflammation or infection was detected. Despite the absence of apparent clin-ical signs after surgery, serum chemistry results revealed changes in blood urea nitrogen levels and the activities of liver enzymes, including aspartate transaminase, lactate dehydrogenase, and creatinine kin-ase, from postoperative days 1 to 14. Rumen fluid pH, as measured from samples collected via an or-ogastric tube, was slightly increased after a preoperative fasting period and on postoperative day 1 but decreased thereafter from postoperative day 4, indicating a minor influence of cannulation surgery on ruminal fluid pH. This is the first study to evaluate hematological parameters and rumen pH before and after rumen cannulation surgery in Hanwoo cattle. Further research is required to better elucidate the potential effects of rumen cannulation surgery on animal health.
( Eunju Kim ),( Hana Park ),( Ha Il Kim ),( Jihye Lim ),( Ji Yoon Kim ),( Han Chu Lee ),( Hyo-jung Nam ),( Ju Hyun Shim ) 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1
Aims: Recent studies have revealed significant associations between atrial fibrillation (Afib) or flutter (AF) and hepatic disorders such as non-alcoholic fatty liver disease and chronic hepatitis C. In this study, we hypothesized that chronic hepatitis B virus (HBV) infection would increase the risk of Afib/AF. Methods: To test this hypothesis, we used data from 43,255 adults (>19 years) who had periodic preventive medical checkups from 2005 to 2009 at the Health Screening and Promotion Center at Asan Medical Center and were followed up longer than one year. All subjects received a comprehensive health assessment, and their results were obtained through the institution’s Information Technology of Service Management system. Information on past medical history, smoking and alcohol consumption, and current drug history were extracted from standardized questionnaire responses. Electrocardiograms, based on which the diagnosis of irregular heartbeats was made, were available for all patients at baseline and at every checkup during follow-up (median: 4 tests/person). Results: In the baseline examination, 1,995 subjects were chronically infected with HBV, and 41,260 did not have hepatitis B or C. After 1:4 propensity score matching, 1,995 HBV carriers and 7,975 controls without any viral hepatitis were finally constructed. Over a mean follow-up time of 6.5±3.5 years, Afib/AF was observed in 18 HBV carriers (0.9%) and 38 controls (0.48%) (P<0.05). Multivariate Cox analysis also showed that patients with hepatitis B had a significantly higher incidence of Afib/AF [adjusted hazard ratio (HR), 1.679], as did men (2.692), the elderly (1.080), obese individuals (1.966), and heavy drinkers (1.866) (Ps<0.05). For HBV carriers, heavy alcohol consumption (≥4 times/week) was the only factor independently correlated with the development of Afib/AF (adjusted HR, 4.997; P<0.05). Conclusions: We found that chronic HBV infection carried increased risk of Afib/AF. The best way to prevent atrial arrhythmia in HBV carriers could be to quit drinking.