IS AN APOLOGY ENOUGH TO RECOVER FROM A MOBILE APPLICATION SERVICE FAILURE? INVESTIGATING THE EFFECT OF PERCEIVED FIRM REMORSE AND CUSTOMER EMPATHY ON CUSTOMER COPING BEHAVIOR

Wen-Hai Chih,Kai-Yu Wang,Li-Chun Hsu,Wei-Ching Lin 글로벌지식마케팅경영학회 2018 Global Marketing Conference Vol.2018 No.07

Offering an apology is one of the common service failure recovery strategies. Previous studies focused on examining the effectiveness of apology from the customer perspective. It is not clear whether and how customers perceive firm remorse after an apology influence their blame attribution and coping behaviors. Integrating a cognitive-emotive model and an empathy model, this research proposes and empirically tests a remorse-empathy-coping model to explain how customers respond to apology after mobile application service failures occur. Specifically, this research examines how perceived firm remorse influences blame attribution and emotional empathy, which subsequently affects coping behaviors (revenge and avoidance) in the mobile app service recovery context. The moderating role of technology anxiety in the proposed model is also identified. Four hundred and fifty-two mobile application service users were recruited for a survey study and the Structural Equation Modeling was used in order to test the research hypotheses. Our findings show that perceived firm remorse negatively influences blame attribution but positively influences empathy. Empathy negatively affects revenge and avoidance behaviors. In addition, technology anxiety moderates the effect of perceived firm remorse on blame attribution. The negative effect of perceived firm remorse on blame attribution becomes weaker when technology anxiety increases.

Advanced Path-Migration Mechanism for Enhancing Signaling Efficiency in IP Multimedia Subsystem

( Kai-di Chang ),( Chi-yuan Chen ),( Shih-wen Hsu ),( Han-chieh Chao ),( Jiann-liang Chen ) 한국인터넷정보학회 2012 KSII Transactions on Internet and Information Syst Vol.6 No.1

Since Internet Protocol (IP) is the most important protocol in Next Generation Networks (NGNs), 3rd Generation Partnership Project (3GPP) utilizes Session Initial Protocol (SIP) based on IP as the base protocol for negotiating sessions in IP Multimedia Subsystem (IMS). Different from traditional circuit-switched network, in IMS, the media traffic and signaling are delivered through IP transport. The media traffic may affect the signaling efficiency in core network, due to traffic collisions and best effort packets delivery. This paper proposes a novel path-migration mechanism for enhancing the traffic efficiency in integrated NGN-IMS. The simulation results show that the interference and traffic collision can be reduce by applying proposed path-migration mechanism and the signaling efficiency in core network can be improved with higher system capability and voice quality.

Design of Uncertain Multi-input Systems with State Delay and Input Deadzone Nonlinearity via Sliding Mode Control

Wen-Jeng Liu,Kuo-Kai Shyu,Kou-Cheng Hsu 제어·로봇·시스템학회 2011 International Journal of Control, Automation, and Vol.9 No.3

The problem of robust stabilization of a class of uncertain multi-input time-delayed systems with deadzone nonlinearity in the actuator is considered. To achieve a stable uncertain multi-input system, sliding mode control (SMC) is adopted in the controller design. The proposed controller guarantees the global reaching condition of the sliding mode in the uncertain multi-input system. In the sliding mode, the investigated time-delayed systems with deadzone nonlinearity still possess the insensitivity to the uncertainties and/or disturbances, which can be seen in the systems with linear inputs. In addition, the proposed controller can work effectively for systems no matter whether sector nonlinearity and/or deadzone exists in the actuator or not. However, such property cannot be obtained by the controller design through traditional SMC for the systems without input nonlinearity. Besides, the traditional SMC controller might produce limit cycles once the system contains deadzone in the input. Furthermore, the presented controller ensures the system trajectories globally exponentially converged in the sliding mode. Finally, two examples are illustrated to demonstrate the effectiveness of the pro-posed sliding mode controller.

Effect of ethyl alcohol aging on the apatite formation of a low-modulus Ti-7.5Mo alloy treated with aqueous NaOH

Ho, Wen-Fu,Tsou, Hsi-Kai,Wu, Shih-Ching,Hsu, Shih-Kuang,Chuang, Shao-Hsuan,Hsu, Hsueh-Chuan Techno-Press 2014 Biomaterials and biomedical engineering Vol.1 No.1

The purpose of this experiment was to evaluate the apatite-formation abilities of low-modulus Ti-7.5Mo substrates treated with NaOH aqueous solutions and subsequent ethyl alcohol aging before soaking them in simulated body fluid. Specimens of Ti-7.5Mo were initially treated with 5 M NaOH at $60^{\circ}C$ for 24 h, resulting in the formation of a porous network structure composed of sodium hydrogen titanate. Afterwards, the specimens were aged in ethyl alcohol at $60^{\circ}C$ for 5 or 10 min, and subsequently immersed in simulated body fluid at $37^{\circ}C$ for 3, 7 and 14 days. Ethyl alcohol aging significantly increased the apatite-forming abilities of Ti-7.5Mo. The amount of apatite deposited on the Ti-7.5Mo after NaOH treatment and subsequent ethyl alcohol aging was much greater, especially after the Ti-7.5Mo specimens were aged for 5 min. Due to its excellent combination of bioactivity, low elastic modulus and low processing costs, the Ti-7.5Mo treated with NaOH aqueous solutions and subsequently aged in ethyl alcohol has promising heavy load-bearing applications.

Design and Implementation of Multi-Level LLC Maximum Power Tracking PV System under Partial Shading Condition

Yu-Kai Chen,Yi-Chen Lai,Hong-Wen Hsu,Jui-Yang Chiu 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5

This paper presents the design and implementation of multi-level LLC DC/DC PV system with MPPT. The multi-level LLC converters include six LLC modules to supply  380V output voltage. LLC converter is adopted to achieve high efficiency because the low switching loss. The perturb in frequency is proposed to implement the global MPPT control algorithm for the PV system under partial shading condition. A 6kW MPPT prototype is implemented and verified the proposed control method for multi-level LLC DC/DC PV system.

Effect of ethyl alcohol aging on the apatite formation of a low-modulus Ti-7.5Mo alloy treated with aqueous NaOH

Ho, Wen-Fu,Tsou, Hsi-Kai,Wu, Shih-Ching,Hsu, Shih-Kuang,Chuang, Shao-Hsuan,Hsu, Hsueh-Chuan Techno-Press 2014 Biomaterials and Biomechanics in Bioengineering Vol.1 No.1

The purpose of this experiment was to evaluate the apatite-formation abilities of low-modulus Ti-7.5Mo substrates treated with NaOH aqueous solutions and subsequent ethyl alcohol aging before soaking them in simulated body fluid. Specimens of Ti-7.5Mo were initially treated with 5 M NaOH at $60^{\circ}C$ for 24 h, resulting in the formation of a porous network structure composed of sodium hydrogen titanate. Afterwards, the specimens were aged in ethyl alcohol at $60^{\circ}C$ for 5 or 10 min, and subsequently immersed in simulated body fluid at $37^{\circ}C$ for 3, 7 and 14 days. Ethyl alcohol aging significantly increased the apatite-forming abilities of Ti-7.5Mo. The amount of apatite deposited on the Ti-7.5Mo after NaOH treatment and subsequent ethyl alcohol aging was much greater, especially after the Ti-7.5Mo specimens were aged for 5 min. Due to its excellent combination of bioactivity, low elastic modulus and low processing costs, the Ti-7.5Mo treated with NaOH aqueous solutions and subsequently aged in ethyl alcohol has promising heavy load-bearing applications.

Simultaneous Measurement of Dopamine Transporters and D2/D3 Receptors in Drug Naïve Schizophrenic Patients

Yuan-Hwa Chou,Wen-Sheng Huang,Ju-Wei Hsu,Shin-Min Lee,An-Shoei Yang,Kai-Chun Yang 대한정신약물학회 2010 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.8 No.2

Objective: Previous single photon emission computed tomography (SPECT) studies have demonstrated that co-injection of radiotracers 99mTc-TRODAT and 123IBZM can assess both presynaptic, dopamine transporters (DATs), and postsynaptic, dopamine D2/D3 receptors, markers of dopaminergic system simultaneously. The aim of this study was to determine both DATs and dopamine D2/D3 receptors in drug naïve schizophrenic patients. Methods: Severn drug naïve schizophrenic patients and eleven age-matched healthy controls were recruited. Each subject received one SPECT measurement after intravenous co-administration of 99mTc-TRODAT and 123IBZM and one brain MRI scan. A ratio equilibrium model was applied to calculate the specific uptake ratio (SUR) which corresponds to the ratio of Bmax (receptor density) and KD (affinity). Results: The results showed that the SUR of DATs binding was not significantly different between healthy controls and drug naïve schizophrenic patients (2.92±0.62 vs. 2.65±0.27, p=0.052) and, however, the SUR of dopamine D2/D3 receptors binding was significantly lower in drug naïve schizophrenic patients than those in healthy controls (2.79±0.54 vs. 3.90±0.58, p=0.001). Additionally, there was a significant correlation between left and right binding for both DATs (r=0.80, p=0.003) and dopamine D2/D3 receptors (r=0.96, p=0.000) in healthy controls but not seen in drug naïve schizophrenic patients (r=0.54, p=0.20 for DATs, r=0.70, p=0.08 for dopamine D2/D3 receptors). Conclusion: This study provides evidences to support the idea that abnormalities of dopaminergic system in schizophrenia and further elucidates the disruption of inter-hemispheric interaction of postsynaptic and presynaptic markers.

Photocatalytic study of Zinc Oxide with bismuth doping prepared by spray pyrolysis

Lin, Tzu-Yang,Hsu, Yu-Ting,Lan, Wen-How,Huang, Chien-Jung,Chen, Lung-Chien,Huang, Yu-Hsuan,Lin, Jia-Ching,Chang, Kuo-Jen,Lin, Wen-Jen,Huang, Kai-Feng Techno-Press 2015 Advances in nano research Vol.3 No.3

The unintentionally doped and bismuth (Bi) doped zinc oxide (ZnO) films were prepared by spray pyrolysis at $450^{\circ}C$ with zinc acetate and bismuth nitrate precursor. The n-type conduction with concentration $6.13{\times}10^{16}cm^{-3}$ can be observed for the unintentionally doped ZnO. With the increasing of bismuth nitrate concentration in precursor, the p-type conduction can be observed. The p-type concentration $4.44{\times}10^{17}cm^{-3}$ can be achieved for the film with the Bi/Zn atomic ratio 5% in the precursor. The photoluminescence spectroscopy with HeCd laser light source was studied for films with different Bi doping. The photocatalytic activity for the unintentionally doped and Bi-doped ZnO films was studied through the photodegradation of Congo red under UV light illumination. The effects of different Bi contents on photocatalytic activity are studied and discussed. Results show that appropriate Bi doping in ZnO can increase photocatalytic activity.

Clinical Features and Computed Tomography Characteristics of Non-Klebsiella pneumoniae Liver Abscesses in Elderly (>65 Years) and Nonelderly Patients

Chih-Weim Hsiang,Wei-Chou Chang,Chang-Hsien Liu,Hsiu-Lung Fan,Kai-Hsiung Ko,Chih-Yung Yu,Hong-Hau Wang,Wen-I Liao,Hsian-He Hsu 연세대학교의과대학 2015 Yonsei medical journal Vol.56 No.2

Purpose: To compare the clinical and computed tomography (CT) appearances of liver abscesses caused by non-Klebsiella pneumoniae bacterial pathogens in elderly and nonelderly patients. Materials and Methods: Eighty patients with confirmed non-Klebsiella pneumoniae liver abscesses (non-KPLAs) were enrolled and dividedinto two age groups: elderly (age ≥65 years, n=42) and nonelderly (age <65 years, n=38). Diagnosis of non-KPLA was established by pus and/or blood culture. We compared clinical presentations, outcomes, and CT characteristics of the two groups, and performed multivariate analysis for significant variables and receiver-operating-characteristic analysis to determine the cutoff value of abscess diameter for predicting non-KPLA. Results: Elderly patients with non-KPLA were associatedwith a longer hospital stay (p<0.01). Regarding etiology, biliary sources had a strong association in the elderly group (p<0.01), and chronic liver diseases were relatedto the nonelderly group (p<0.01). Non-KPLAs (52.5%) tended to show a large, multiloculated appearance in the elderly group and were associated with bile duct dilatation (p<0.01), compared with the nonelderly group. The abscess diameter (cutoff value, 5.2 cm; area under the curve, 0.78) between the two groups was predicted. In multivariate analysis, underlying biliary tract disease [odds ratio (OR), 3.58, p<0.05], abscess diameter (OR, 2.40, p<0.05), and multiloculated abscess (OR, 1.19, p<0.01) independently predicted elderly patients with non-KPLA. Conclusion:In the elderly patients with non-KPLA, a large, multiloculated abscess with a diameter greater than 5.2 cm was the predominant imaging feature.

Platelet-Derived Growth Factor Receptor-α Subunit Targeting Suppresses Metastasis in Advanced Thyroid Cancer In Vitro and In Vivo

( Ching-ling Lin ),( Ming-lin Tsai ),( Yu-hsin Chen ),( Wei-ni Liu ),( Chun-yu Lin ),( Kai-wen Hsu ),( Chien-yu Huang ),( Yu-jia Chang ),( Po-li Wei ),( Shu-huey Chen ),( Li-chi Huang ),( Chia-hwa Lee 한국응용약물학회 2021 Biomolecules & Therapeutics(구 응용약물학회지) Vol.29 No.5

Thyroid cancer is the most common endocrine malignancy. Patients with well-differentiated thyroid cancers, such as papillary and follicular cancers, have a favorable prognosis. However, poorly differentiated thyroid cancers, such as medullary, squamous and anaplastic advanced thyroid cancers, are very aggressive and insensitive to radioiodine treatment. Thus, novel therapies that attenuate metastasis are urgently needed. We found that both PDGFC and PDGFRA are predominantly expressed in thyroid cancers and that the survival rate is significantly lower in patients with high PDGFRA expression. This finding indicates the important role of PDGF/PDGFR signaling in thyroid cancer development. Next, we established a SW579 squamous thyroid cancer cell line with 95.6% PDGFRA gene insertion and deletions (indels) through CRISPR/Cas9. Protein and invasion analysis showed a dramatic loss in EMT marker expression and metastatic ability. Furthermore, xenograft tumors derived from PDGFRA geneedited SW579 cells exhibited a minor decrease in tumor growth. However, distant lung metastasis was completely abolished upon PDGFRA gene editing, implying that PDGFRA could be an effective target to inhibit distant metastasis in advanced thyroid cancers. To translate this finding to the clinic, we used the most relevant multikinase inhibitor, imatinib, to inhibit PDGFRA signaling. The results showed that imatinib significantly suppressed cell growth, induced cell cycle arrest and cell death in SW579 cells. Our developed noninvasive apoptosis detection sensor (NIADS) indicated that imatinib induced cell apoptosis through caspase-3 activation. In conclusion, we believe that developing a specific and selective targeted therapy for PDGFRA would effectively suppress PDGFRA-mediated cancer aggressiveness in advanced thyroid cancers.