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Hao-Yue BAI,Jung-Hee KIM 한국유통과학회 2024 유통과학연구 Vol.22 No.8
Purpose: This study aimed to examine the influence of private label cues, including store image, product design, price promotion, and origin image, on consumers repurchase intention by mediating consumption value from a distribution perspective. Additionally, it explored nationality's moderating role in the relationship between consumption value and repurchase intention. Research design, data and methodology: Drawing on the SOR model, data were collected from 246 consumers who had purchased private-label products in the past month. Structural equation modeling analysis was employed to test hypotheses using AMOS and SPSS. Results: Findings revealed that cues significantly impact consumers' perception of consumption value, influencing repurchase intention. Price promotion directly affected repurchase intention, while other cues indirectly influenced it through consumption value mediation. Nationality moderated the relationship between consumption value and repurchase intention, with Korean consumers showing a higher propensity to repurchase than Chinese consumers. Conclusions: Theoretical implications of the study contributed to understanding consumer behavior by confirming the impact of private label cues, elucidating their differential effects on repurchase intention, and integrating theoretical frameworks. Managerial implications underscored the significance of leveraging cues to enhance consumption value perceptions, tailoring marketing strategies to accommodate cultural nuances, and utilizing cues to bolster consumer repurchase intentions, ultimately enhancing distribution channel effectiveness.
앱 진정성과 앱 권위성이 앱 매력도와 앱 충성도에 미치는 영향: 국적, 앱 특징, 앱 매력도 간의 조절된 매개효과를 중심으로
백호월 ( Hao-yue Bai ),김정희 ( Jung-hee Kim ) 한국유통경영학회 2023 유통경영학회지 Vol.26 No.1
Purpose: Consumption patterns are shifting with digital virtualization to form new marketing models, and App icon design is the key to differentiation in the digital marketing process for companies. The aim of this study is to investigate the effect of App authenticity and App authority on App attractiveness and App loyalty. In addition, The moderating effects of App features and nationality differences on app authenticity, App authority, and App loyalty in a relationship mediated by App attractiveness are also explored. The study is dedicated to providing useful information for companies to understand the Korean market and Chinese market customers from the perspective of App digital marketing and to develop strategies to attract more customers. Research design, data, and methodology: In order to achieve the research purpose, Using App icon features as the entry point, App authenticity and App authority as independent variables, and introducing App attractiveness as a mediating variable, this study verified the impact on the dependent variable App loyalty using data from a survey of 334 Korean and Chinese consumers. Results: The empirical results are summarized as follows. Firstly, App Authenticity has a positive (+) impact on App attractiveness. Secondly, App Authority has a positive (+) effect on App Attractiveness and App Loyalty. Third, App attractiveness has a positive (+) effect on App loyalty. Fourthly, all relationships between App attractiveness App authenticity, and App loyalty are partial mediating effect. Fifth, only a partial mediating effect of Graphic-Korea exists between App attractiveness in terms of App authority and App loyalty. Sixth, only the hypothesis of a moderating effect between App authority * App features, and App authenticity * nationality is valid. Implications: When designing applications, companies should express the concept of the brand with maximum accuracy, communicate the values of the company and maintain the inherent symbolic image of the brand. Respect the consumer, respect the cultural differences of different countries and approach them with Authenticity. The results of the study help companies to design App icons more precisely to help improve App attractiveness, and App loyalty and this study provides a theoretical basis for the development of digital marketing for brands.
Bai, Lan,He, Juan,He, Gong-Hao,He, Jian-Chang,Xu, Fan,Xu, Gui-Li Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.19
Background: Previous studies accessing the association of CYP2C19 with outcomes of patients using tamoxifen for breast cancer have yielded conflicting results. The aim of this meta-analysis is to obtain a more precise estimate of effects of CYP2C19 polymorphisms and to clarify their effects on survival of the breast cancer patients using tamoxifen. Materials and Methods: A systematic search of PubMed and Embase was performed, comparing patients with or without $CYP2C19^*2$ and $CYP2C19^*17$, relevant articles searched for. The following outcomes were included from the eligible studies: disease-free survival (DFS) and overall survival (OS), expressed by hazard ratios (HR) with corresponding 95% confidence interval (CI). Subgroup analysis by genotypes was also performed. Pooled estimates were calculated using random-effect model in accordance to the heterogeneity. Results: Six studies met the inclusion criteria. The integrated OR on the association between CYP2C19 and DFS, calculated by the random-effect model, was 0.54 (95%CI=0.34-0.84, p=0.013). Subgroup analysis showed that both $CYP2C19^*2$ and $CYP2C19^*17$ were associated with increased survival. The pooled results of two studies for OS were OR=0.46 (95%CI=0.21-1.01, p=0.233). Conclusions: This meta-analysis suggests that the $CYP2C19^*2$ and $CYP2C19^*17$ genotypes are associated with increased survival in breast cancer patients using tamoxifen.
PIAS: Practical Information-Agnostic Flow Scheduling for Commodity Data Centers
Bai, Wei,Chen, Li,Chen, Kai,Han, Dongsu,Tian, Chen,Wang, Hao IEEE 2017 IEEE/ACM transactions on networking Vol.25 No.4
<P>Many existing data center network (DCN) flow scheduling schemes, that minimize flow completion times (FCT) assume prior knowledge of flows and custom switch functions, making them superior in performance but hard to implement in practice. By contrast, we seek to minimize FCT with no prior knowledge and existing commodity switch hardware. To this end, we present PIAS, a DCN flow scheduling mechanism that aims to minimize FCT by mimicking shortest job first (SJF) on the premise that flow size is not known a priori. At its heart, PIAS leverages multiple priority queues available in existing commodity switches to implement a multiple level feedback queue, in which a PIAS flow is gradually demoted from higher-priority queues to lower-priority queues based on the number of bytes it has sent. As a result, short flows are likely to be finished in the first few high-priority queues and thus be prioritized over long flows in general, which enables PIAS to emulate SJF without knowing flow sizes beforehand. We have implemented a PIAS prototype and evaluated PIAS through both testbed experiments and ns-2 simulations. We show that PIAS is readily deployable with commodity switches and backward compatible with legacy TCP/IP stacks. Our evaluation results show that PIAS significantly outperforms existing information-agnostic schemes, for example, it reduces FCT by up to 50% compared to DCTCP [11] and L2DCT [32]; and it only has a 1.1% performance gap to an ideal information-aware scheme, pFabric [13], for short flows under a production DCN workload.</P>
Delayed Strength Development of Composite Cementitious with Calcium Silicate Slag
Ru Bai,Ju Zhang,Changwang Yan,Shuguang Liu,Xiaoxiao Wang,Zhijie Yang,Hao Jing 대한토목학회 2023 KSCE Journal of Civil Engineering Vol.27 No.6
Using pulverized calcium silicate slag (CSS) to replace part of Portland cement (PC) as composite cementitious material is the most energy-saving and clean treatment method. The main objective of this study was to investigate the delayed strength development of the CSS-PC composite cementitious. The compressive strength of the composite cementitious with 10% to 40% CSS was tested, the delayed strength was calculated, and the delayed age was analyzed. Results showed that the delayed strength and delayed age increased with the increase in the substitution rate of CSS, which was determined by the ratio of C2S and C3S. Moreover, a compressive strength prediction model of CSS–PC composite cementitious was established based on the “core-shell” hydration model. The calculated value was compared with the specification value of each country to analyze whether the compressive strength of CSS-PC composite cementitious meets the engineering requirements.
Promoter demethylation mediates the expression of ZNF645, a novel cancer/testis gene
( Gang Bai ),( Yun Qiang Liu ),( Hao Zhang ),( Dan Su ),( Da Chang Tao ),( Yuan Yang ),( Yong Xin Ma ),( Si Zhong Zhang ) 생화학분자생물학회 (구 한국생화학분자생물학회) 2010 BMB Reports Vol.43 No.6
Cancer/testis (CT) antigens exhibit highly tissue-restricted expression and are considered promising targets for cancer vaccines. Here we identified a novel CT gene ZNF645 which restrictively expresses in normal human testes and lung cancer patients (68.3%). To investigate the promoter methylation status of ZNF645, we carried out bisulfite genomic sequencing and found that the CpG island in its promoter was heavily methylated in normal lung tissues without the expression of ZNF645, whereas there was high demethylation in normal human testes and lung carcinoma tissues with its expression. Also ZNF645 could be remarkably activated in A549 and HEK293T cells treated by DNA demethylation agent 5`-aza-2`-deoxycytidine. And the dual luciferase assay revealed that the promoter activity of the ZNF645 was inhibited by methylation of the CpG island region. Therefore, we proposed that ZNF645 is a CT gene and activated in human testis and lung cancers by demethylation of its promoter region. [BMB reports 2010; 43(6): 400-406]
중국과 한국의 건축공사 표준시방서 비교 : 콘크리트 품질관리 부분을 중심으로 Focused on the Part of Quality Control of Concrete
이백수,김은호,배정열,윤길봉,한천구 대한건축학회 2001 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.21 No.2
This paper investigates and compares the architectural standard specifications between Korea(KASS) and China(CASS), especially focused on quality control, in order to help construction engineer understand the both regulations. According to results, in case of KASS, specimens for compressive strength test is cylindrical type with 2 times of diameter to height. Quality inspection is regulated to be performed 1 times per 150㎥ of concrete. However, in case of CASS, cubic type specimens with 150㎜ of length is used. Quality inspection is regulated to be performed 1 times every 100th batch at least 100㎥.