SERVICE RECOVER TIMING AND COMPENSATION STRATEGIES UNDER DIFFERENT INTENSITIES OF NEGATIVE EMOTIONS

Xiaofei Tang,En-Chung Chang,Xing Huang,Meng Zhang,Beixi Wen 글로벌지식마케팅경영학회 2018 Global Marketing Conference Vol.2018 No.07

The current study develops a pair model considering the intensity of negative emotions and strategic combinations of recovery means and timing under hotel service failure scenarios. The purpose of this paper is to evaluate the performances of these different combinations through customer satisfaction, repurchase intention, and fitting curves between the two under Chinese hotel service scenarios. Previous studies have found that service failures cause economic losses as well as negative emotional responses from customers (Gr?nroos, 1984; McColl Kennedy and Sparks, 2003). However, customers might display higher satisfaction and purchase intentions when proper service recovery actions are taken instead of when no service failures occur (Smith et al., 1999; McCollough et al., 2000). Concerning the means of service recovery during a service failure, customers in a negative emotional state require specific recovery solutions from the service provider; concerning the timing of service recovery, immediate recovery appears to be an effective way to address customer complaints (Kelley et al., 1993). While, previous research has partially shown that for extremely angry customers, the performance of “as soon as possible” recovery is unsatisfying and may even cause the service recovery to fail (Mattila and Ro, 2008). A 2 (recovery timing: immediate/delayed) × 2 (recovery means: psychological/economic) × 3 (type of service failure: failure in a delivery system/failure in responding to customer needs/improper employee behavior) between-subject experimental design was employed with 456 part-time MBA students in China to examine the relationship between customer satisfaction and repurchase intention under different levels of negative emotion after experienced a service failure. The results suggest that immediate and economic recovery effectively raises the service recovery evaluations from customers with low-intensity negative emotions, whereas delayed and psychological recovery helps customers with high-intensity negative emotions to give higher evaluations. This study sheds light on the role that negative emotions play in the process of service recovery and provides implications for service industry managers, that is the decisions to use economic recovery or psychological recovery are necessitate consider the intensity characteristic of negative emotions, for customers in low-intensity negative emotional states, the immediate and economic recovery strategy is effective, whereas for customers in high-intensity negative emotional states, the delayed and psychological recovery strategy may lead to better outcomes. According to these findings, it is important for managers to train front-line staff to adopt proper recovery strategies to manage service failure when facing consumers with different intensity of negative emotion.

Metallogenesis and hydrothermal evolution of the Saibo copper deposit in the western Tianshan: evidence from fluid inclusions, H-O-S isotopes, and Re-Os geochronology

Bowen Zhang,Xiaofei Tang,Chuan Chen,Xiaoping Gong,Chunmei Su 한국지질과학협의회 2023 Geosciences Journal Vol.27 No.1

The Saibo copper polymetallic deposit, located in the West Tianshan Sailimu-Sitaihaiquan copper lead and zinc ore belt, is a new breakthrough in medium-large copper mine. Through the thin section authentication and the thermometric analysis of fluid inclusion, it is concluded that skarnization was developed in this deposit, the mineralization stage can be divided into retrograde skarn stage (S1), quartz-sulfide stage (S2) and quartz-carbonate stage (S3). Fluid inclusions (FIs) were distinguished as liquid-rich aqueous FIs (LV-type), vapor-rich aqueous FIs (VL-type), and NaCl daughter mineral-bearing three phase FIs (S-type). The mineralization fluids indicate that the initial stage (S1 stage) is of high temperature and high salinity, with a handful of metallicmatters. During the main metallogenic stage (S2 stage), the meteoric water is mixed, the temperature and salinity gradually decrease, the fluid is distinctly boiling, and a large amount of metallic matters are precipitated, and then to the S3 stage, when the temperature and salinity decrease along with the carbonation. Chalcopyrite Re-Os dating yielded a mineralization age of 379.2 ± 7.7 Ma, which corresponds well with the zircon U-Pb age (385.9 ± 1.3 Ma) of the granite porphyry. The C-H-O isotopes indicate that the ore-forming fluid was dominated by initial mixed magmatic water in the early stage and by meteoric water in the late stage, and C is derived from limestone strata metasomatized by magmatic fluids. The S and Pb isotopes indicate that the ore-forming materials are derived from the mixed crust-mantle source, of which S is almost entirely derived from the mantle, while Pb is mainly derived from the crustal material of the orogenic belt. On the whole, the Saibo copper deposit is a typical calcium skarn type deposit, which formed in the shallower setting at active continental margin in the Late Devonian period.

PRI: A Practical Reputation-based Incentive Scheme for Delay Tolerant Networks

( Xi Zhang ),( Xiaofei Wang ),( Anna Liu ),( Quan Zhang ),( Chaojing Tang ) 한국인터넷정보학회 2012 KSII Transactions on Internet and Information Syst Vol.6 No.4

Delay tolerant networks (DTNs) characterized by the lack of guaranteed end-to-end paths exploit opportunistic data forwarding mechanism, which depends on the hypothesis that nodes are willing to store, carry, and forward the in-transit messages in an opportunistic way. However, this hypothesis might easily be violated by the presence of selfish nodes constrained with energy, bandwidth, and processing power. To address this problem, we propose a practical reputation-based incentive scheme, named PRI, to stimulate honest forwarding and discipline selfish behavior. A novel concept of successful forwarding credential and an observation protocol are presented to cope with the detection of nodes` behavior, and a reputation model is proposed to determine egoistic individuals. The simulation results demonstrate the effectiveness and practicality of our proposal.

Recent advances in MXenes supported semiconductors based photocatalysts: Properties, synthesis and photocatalytic applications

Cheera Prasad,Xiaofei Yang,Qinqin Liu,Hua Tang,Aluru Rammohan,Syed Zulfiqar,Grigory V. Zyryanov,Sufaid Shah 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.85 No.-

The families of MAX phases and their derivatives MXenes are constantly increasing in terms of bothcomposition and crystalline mixtures. In the last three years, numerous advances were accomplishedthat improved the preparation of new MAX phases with prearranged double transition metals and, as aresult, the production of novel MXenes with a high structural complexity and chemical multiplicity,infrequently observed in other families of two-dimensional samples. In this evaluation, hybrids ofMXenes and semiconductors are efficient photocatalysts, because of their specific interface character-istics and Schottky heterojunction is capable of giving accelerated charge separation and a lowerSchottky barrier for photocatalytic applications. The latest advances were proved that the MXenessupported semiconductors based photocatalysts can be expected as the most advantaged andencouraged novel photocatalysts in the photocatalytic and photoelectrochemical applications. Besides,we have explained significant developments in efficient MXenes supported semiconductors basednanocomposites, including the frequent synthesis strategies and progress mechanisms, in addition totheir new applications including, photodegradation of dyes, CO2 conversion, photocatalytic andphotoelectrochemical water splitting reaction applications. The review was completed with a shortpresentation of future challenges and prospects in the progress of MXenes supported semiconductorsbased photocatalysts. It is also believed that this review will encourage further exploration and willinaugurate new promising to increase new MXenes supported semiconductors based photocatalystswith new and inspiring applications.

MiR-218-5p Suppresses the Killing Effect of Natural Killer Cell to Lung Adenocarcinoma by Targeting SHMT1

Quanjun Yang,Jingjing Li,Yili Hu,Xiaofei Tang,Lili Yu,Lihua Dong,Diandian Chen 연세대학교의과대학 2019 Yonsei medical journal Vol.60 No.6

Purpose: Lung adenocarcinoma (LA) is one of the major types of lung cancer. MicroRNAs (miRNAs) play an essential role in regulatingresponses of natural killer (NK) cells to cancer malignancy. However, the mechanism of miR-218-5p involved in the killingeffect of NK cells to LA cells remains poorly understood. Materials and Methods: The expression of miR-218-5p was examined by quantitative real-time polymerase chain reaction (qRTPCR). Serine hydroxymethyl transferase 1 (SHMT1) level was detected by qRT-PCR or western blots. Cytokines production ofinterferon-γ (IFN-γ) and tumor necrosis factor-α (TNF-α) were detected by ELISA. The killing effect of NK cells to LA cells was investigatedusing lactate dehydrogenase cytotoxicity assay kit. The interaction of miR-218-5p and SHMT1 was probed by luciferaseactivity assay. Xenograft model was established to investigate the killing effect of NK cells in vivo. Results: miR-218-5p was enhanced and SHMT1 was inhibited in NK cells of LA patients, whereas stimulation of interleukin-2(IL-2) reversed their abundances. Addition of miR-218-5p reduced IL-2-induced cytokines expression and cytotoxicity in NK-92against LA cells. Moreover, SHMT1 was negatively regulated by miR-218-5p and attenuated miR-218-5p-mediated effect on cytotoxicity,IFN-γ and TNF-α secretion in IL-2-activated NK cells. In addition, miR-218-5p exhaustion inhibited tumor growth bypromoting killing effect of NK cells. Conclusion: miR-218-5p suppresses the killing effect of NK cells to LA cells by targeting SHMT1, providing a potential target forLA treatment by ameliorating NK cells function.

LINC00174 Facilitates Proliferation and Migration of Colorectal Cancer Cells via MiR-3127-5p/ E2F7 Axis

( Yuhong Ma ),( Yuzhen Li ),( Yuanyuan Tang ),( Ning Tang ),( Dengke Wang ),( Xiaofei Li ) 한국미생물 · 생명공학회 2021 Journal of microbiology and biotechnology Vol.31 No.8

The literature indicates that LINC00174 promotes the growth of colorectal cancer (CRC) cells, but its research needs to be enriched. We tried to explore the function and mechanism of LINC00174 in CRC cell proliferation and migration. Bioinformatics analysis predicted the binding relationship and expressions of lncRNA, miRNA and mRNA. Clinical study analyzes the relationship between LINC00174 and clinical data characteristics of CRC patients. The expressions of LINC00174, miR-3127-5p and E2F7 were verified by RT-qPCR, and the combination of the two was verified by dual luciferase analysis and RNA immunoprecipitation as needed. Western blot was used to detect the expression of EMT-related protein and E2F7 protein. Functional experiments were used to evaluate the function of the target gene on CRC cells. LINC00174 was up-regulated in CRC clinical samples and cells and was related to the clinical characteristics of CRC patients. High-expression of LINC00174, contrary to the effect of siLINC00174, promoted cell viability, proliferation, migration and invasion, up-regulated the expressions of N-Cadherin, Vimentin, E2F7, and inhibited the expression of E-Cadherin. MiR-3127-5p was one of the targeted miRNAs of LINC00174 and was down-regulated in CRC samples. In addition, miR-3127-5p mimic partially reversed the malignant phenotype of CRC cells induced by LINC00174. Besides, E2F7 was a target gene of miR-3127-5p, and LINC00174 repressed miR-3127-5p to regulate E2F7. Our research reveals that LINC00174 affected the biological characteristics of CRC cells through regulated miR-3127-5p/ E2F7 axis.

A Cloud Model-based Knowledge Mapping Method for Historic Building Maintenance based on Building Information Modelling and Ontology

Pin-Chan Lee,Wei Xie,Tzu-Ping Lo,Danbing Long,Xiaofei Tang 대한토목학회 2019 KSCE JOURNAL OF CIVIL ENGINEERING Vol.23 No.8

The maintenance of historic buildings requires a systematic approach to construct and reuse maintenance knowledge. Maintenance knowledge of historic buildings has extensive and specific knowledge, but a small number of experts provide most of experience. With the rapid development of building information modelling (BIM), it can facilitate maintenance management of historic buildings. Recently, research on connecting ontology and BIM was discussed to promote building knowledge management (BKM). However, BKM is less applied in historic buildings and connection strength is also less discussed. Connection strength of knowledge mapping can increase the performance of knowledge retrieval. Therefore, this study aims to build connection between maintenance ontology of historic buildings and BIM, and also proposes a cloud model-based knowledge mapping method to evaluate the connection strength. This study uses FMEA (failure mode and effects analysis) to connect ontology and BIM, and the grey relational analysis to evaluate the connection strength. Meanwhile, cloud model is integrated into FMEA to better deal with uncertain information to increase the reliability. This study adopts a real case to valid the practicability. The results show the proposed method can evaluate the connection strengths with uncertain information and obtain the maintenance knowledge more efficiently.