Dynamic nuclear polarization and spin-diffusion in non-conducting solids

There has been much renewed interest in dynamic nuclear polarization (DNP), particularly in the context of solid state biomolecular NMR and more recently dissolution DNP techniques for liquids. This paper reviews the role of spin diffusion in polarizing nuclear spins and discusses the role of the spin diffusion barrier, before going on to discuss some recent results.Comment: submitted to Applied Magnetic Resonance. The article should appear in a special issue that is being published in connection with the DNP Symposium help in Nottingham in August 200

Customer emotions in service failure and recovery encounters

Emotions play a significant role in the workplace, and considerable attention has been given to the study of employee emotions. Customers also play a central function in organizations, but much less is known about customer emotions. This chapter reviews the growing literature on customer emotions in employee–customer interfaces with a focus on service failure and recovery encounters, where emotions are heightened. It highlights emerging themes and key findings, addresses the measurement, modeling, and management of customer emotions, and identifies future research streams. Attention is given to emotional contagion, relationships between affective and cognitive processes, customer anger, customer rage, and individual differences

Systematic Review of Medicine-Related Problems in Adult Patients with Atrial Fibrillation on Direct Oral Anticoagulants

New oral anticoagulant agents continue to emerge on the market and their safety requires assessment to provide evidence of their suitability for clinical use. There-fore, we searched standard databases to summarize the English language literature on medicine-related problems (MRPs) of direct oral anticoagulants DOACs (dabigtran, rivaroxban, apixban, and edoxban) in the treatment of adults with atri-al fibrillation. Electronic databases including Medline, Embase, International Pharmaceutical Abstract (IPA), Scopus, CINAHL, the Web of Science and Cochrane were searched from 2008 through 2016 for original articles. Studies pub-lished in English reporting MRPs of DOACs in adult patients with AF were in-cluded. Seventeen studies were identified using standardized protocols, and two reviewers serially abstracted data from each article. Most articles were inconclusive on major safety end points including major bleeding. Data on major safety end points were combined with efficacy. Most studies inconsistently reported adverse drug reactions and not adverse events or medication error, and no definitions were consistent across studies. Some harmful drug effects were not assessed in studies and may have been overlooked. Little evidence is provided on MRPs of DOACs in patients with AF and, therefore, further studies are needed to establish the safety of DOACs in real-life clinical practice

Robustness of optimal design solutions to reduce vibration transmission in a lightweight 2D structure, part II: application of active vibration control techniques

This is the second paper which considers the reduction of the vibration transmission along a lightweight cantilever structure consisting of 40 rigidly joined beams over a frequency band. In the first paper [1] the reduction was achieved by allowing the geometry of the structure to be altered, such that the structure provided an inherently better vibration isolation. In this paper, the variation reduction over a band of frequencies is achieved using feedforward active vibration control (AVC) techniques applied to the original structure geometry. The success of AVC depends strongly on the position of the actuators. The actuator positions on the structure which achieve the best reductions in vibration transmission are found for one, two and thee actuators. A robustness analysis is then performed to show the sensitivity of each of the best solutions to small geometric perturbations. These solutions are the most practical, being less sensitive to small geometric changes that might occur, for example, as manufacturing tolerances. This is achieved by applying a sufficient number of random perturbations to determine the statistical distribution of the performance. A probability limit is then applied in order to predict a likely average minimum performance criterion, In addition to considering the robustness of the performance, the control effort required to achieve active control must be considered. If this increases significantly when the structure is perturbed the demand may not be met be a practical system, and the predicted performance cannot be obtained

Antecedents of SMMA continuance intention in two culturally diverse countries: An empirical examination

The use of social media mobile applications (SMMA) in Asian countries has increased remarkably in the last decade, which demands a better understanding of differences in the adoption of SMMA across cultures, beyond the west. Against this backdrop, the present study developed a research model that incorporates Schwartz’s individual-level values, individual contextual factors, perceived risk and perceived value, and applied it to settings China and Pakistan to better understand continuance intention regarding SMMA in Asian countries. This study specifically examines the role of individual-level values and individual contextual factors in explaining users’ risk perception; the effects of risk perception on perceived value; and, finally, the impact of perceived value on continuance intention regarding SMMA. Our research model holds true for both China and Pakistan. The majority of the proposed relationships were supported by our findings, and we also observed some noteworthy differences during model comparison between both samples. The findings offer suggestions to information system (IS) practitioners and social media marketers considering cross-cultural differences through SMMA use. The authors acknowledge limitations and suggest further research directions to IS scholars