Anomalous response in the vicinity of spontaneous symmetry breaking

We propose a mechanism to induce negative AC permittivity in the vicinity of a ferroelectric phase transition involved with spontaneous symmetry breaking. This mechanism makes use of responses at low frequency, yielding a high gain and a large phase delay, when the system jumps over the free-energy barrier with the aid of external fields. We illustrate the mechanism by analytically studying spin models with the Glauber-typed dynamics under periodic perturbations. Then, we show that the scenario is supported by numerical simulations of mean-field as well as two-dimensional spin systems.Comment: 6 pages, 5 figure

Differencial Effect of E-Banking Services Determinants

This study proposes and empirically tests a research model regarding the use of electronic financial services based on the e-service acceptance model. The current study categorizes electronic financial services provided by banks into transaction-oriented services (TOS) and communication-oriented services (COS), in order to investigate the co-value creation phenomenon through customer participation. It is assumed that the antecedent variables in the previous studies may exert differential effects on the use behaviour of electronic services. The proposed model includes three Technology Readiness dimensions (discomfort, optimism, and insecurity), and two Technology acceptance constructs (perceived ease of use, perceived usefulness), as the antecedents to use of e-banking services. The proposed research model was tested against the data collected through a survey of service users who have experience with both TOS use and COS use. The key result is that the use behaviour of the different types of e-banking services is affected by different sets of factors: the use of TOS is found to be affected by perceived ease of use, perceived usefulness, and insecurity; whereas the use of COS is affected only by perceived ease of use

Consensus of Corporate E-Learning System Stakeholders Regarding the Satisfaction of End-Users

The purpose of this study is to call attention to the consensus of stakeholders of corporate e-Learning system regarding success. We identified the critical success factors (contents, technical features, management, and organizational support) as major components of corporate eLearning systems and questioned whether stakeholders’ consensus on the importance of these components facilitates the implementation of these components to achieve good quality or well. We also questioned whether the influence of these components on user satisfaction could be moderated by contextual factors. Based on empirical testing of 18 eLearning user companies, we verified that the consensus of stakeholders regarding the importance of content, technological features, and organizational support has a positive influence on the perceived quality of these factors in their e-Learning systems, which in turn is positively related to user satisfaction. The learning subjects and learning style did significantly moderate the influences of these perceived qualities on user satisfaction

Clock Light Design Based on Sunrise and Sunset Time

We intend to develop a clock with a natural human perception of time, instead of a numerical one. Our representation of time was inspired by the difference in light during sunrise and sunset depending on the season or place and its annual recurrence. The events of sunrise, midday, and sunset, which consist our time series, was appointed a specific color based on the theory associated with color temperature, and connected with gradation. To be able to show the time information with light, we created a physical form. This clock light functions as an indirect light source and gives emotional value to time