Postoperative Segmental Motion up to 1 Year Following Single-Level Anterior Cervical Discectomy and Fusion: Plate versus Non-plate

Study Design Retrospective observational study. Purpose This study aimed to investigate the impact of plating on postoperative serial segmental motion and its correlation with clinical outcomes in single-level anterior cervical discectomy and fusion (ACDF) for up to 1 year. Overview of Literature The advantages and disadvantages of using cervical plating in ACDF have been well discussed; however, few studies compared the early serial segmental motions at the postoperative level between plating and non-plating. Methods In retrospectively collected data, 149 patients who underwent single-level ACDF for degenerative disease were enrolled and divided into non-plating (n=66) and plating (n=83). Interspinous motion (ISM) at the arthrodesis segment, Numeric Rating Scale (NRS) for neck pain, and Neck Disability Index (NDI) were serially evaluated at 3, 6, and 12 months postoperatively. Predictable factors for fusion, including age, sex, plating, diabetes, smoking, and type of grafts, were investigated, and fusion was defined as ISM <1 mm. Results In both groups, ISM was the highest at 3 months and gradually decreased thereafter, and the plating group showed significantly lower serial ISM than the non-plating group at 12 months. The plating group had lower NRS and NDI scores than the non-plating group at 12 months, and the difference in the NRS scores was statistically significant, particularly at 3 and 6 months, although that of the NDI scores was not. In a multivariate analysis, plating was the most powerful predictor for fusion. Conclusions Plating significantly decreases the serial ISM compared with non-plating in single-level ACDF, and such decreased motion is correlated with decreased neck pain until 12 months postoperatively, particularly at 3 and 6 months. Given that plating was the most predictive factor for fusion, we recommend plating even in single-level ACDF for better early clinical outcomes

Highly sensitive near-infrared SERS nanoprobes for in vivo imaging using gold-assembled silica nanoparticles with controllable nanogaps

Abstract Background To take advantages, such as multiplex capacity, non-photobleaching property, and high sensitivity, of surface-enhanced Raman scattering (SERS)-based in vivo imaging, development of highly enhanced SERS nanoprobes in near-infrared (NIR) region is needed. A well-controlled morphology and biocompatibility are essential features of NIR SERS nanoprobes. Gold (Au)-assembled nanostructures with controllable nanogaps with highly enhanced SERS signals within multiple hotspots could be a breakthrough. Results Au-assembled silica (SiO2) nanoparticles (NPs) (SiO2@Au@Au NPs) as NIR SERS nanoprobes are synthesized using the seed-mediated growth method. SiO2@Au@Au NPs using six different sizes of Au NPs (SiO2@Au@Au50–SiO2@Au@Au500) were prepared by controlling the concentration of Au precursor in the growth step. The nanogaps between Au NPs on the SiO2 surface could be controlled from 4.16 to 0.98nm by adjusting the concentration of Au precursor (hence increasing Au NP sizes), which resulted in the formation of effective SERS hotspots. SiO2@Au@Au500 NPs with a 0.98-nm gap showed a high SERS enhancement factor of approximately 3.8 × 106 under 785-nm photoexcitation. SiO2@Au@Au500 nanoprobes showed detectable in vivo SERS signals at a concentration of 16μg/mL in animal tissue specimen at a depth of 7mm. SiO2@Au@Au500 NPs with 14 different Raman label compounds exhibited distinct SERS signals upon subcutaneous injection into nude mice. Conclusions SiO2@Au@Au NPs showed high potential for in vivo applications as multiplex nanoprobes with high SERS sensitivity in the NIR region. Graphical Abstrac

Consuming Entertainment Media: How Media Effects Can Vary by Users’ Controllability

Previous communication studies have focused on how media content influences human aggression. Few studies, however, have been conducted regarding the influence of situational variables on human aggression. Regarding online gaming, the present study examines how game users’ aggression is influenced by two idiosyncratic situational variables: “degree of control” (playing vs. watching) and “degree of interaction” (alone vs. together). The feeling of presence is also examined as a mediator to explicate the mechanism through which these situational variables influence the game users’ levels of aggression. The results demonstrate that degree of control significantly affects users’ aggression. Aggression is increased when players actively participate in the game versus simply watching; situational factors that are associated with the way people engage in interactive media cause short-term shifts in players’ aggression. Implications and future research directions are discussed

Exploring the Effect of Ad Choice in Online Video-Streaming Platforms: Moderated by Ad Involvement and Mediated by Psychological Reactance

Online video ads on video-streaming platforms interrupt viewers' video-watching experiences, presumably triggering anger, irritation, and negative cognition. Thereby, with a theoretical framework of psychological reactance, we call scholarly attention to the role of ad choice in mitigating the negative effect of interruptions from mid-roll video ads. We propose that the effect of ad choice will be moderated by ad involvement and mediated by psychological reactance. We conducted a between-subjects experiment with a 2 (ad choice: yes versus no) x 2 (ad involvement: high versus low) design by creating a realistic digital video-streaming environment. We found that the effect of ad choice was significant only when ad involvement was low. A significant mediating role of reactance was revealed only in the relationship between ad choice and attitude toward the ads; however, the proposed moderated mediation role of psychological reactance was not significant. Theoretical and practical implications are discussed

The interplay of persuasion inference and flow experience in an entertaining food advergame

Increasingly, unhealthy food is being advertised through online games known as advergames. The advergame is designed for entertaining fun to promote the brand featured in the game. But what happens if the food advertised is healthy or the source of the game is non‐commercial? This study examines how people's entertainment (flow experience) interacts with their inference about the persuasion impact of food brands featured in an advergame, which vary according to their persuasion knowledge about the source (e.g., non‐commercial versus commercial) and the perceived persuasion effect on self (e.g., beneficial versus harmful). Results of an experiment show that flow is positively associated with persuasion effects of the advergame. Brand attitudes and purchase intentions were the most favorable for non‐commercial brands with perceived benefits (healthy food) followed by commercial brands (healthy food) and commercial brands with harmful effects (less healthy food). However, persuasion effects for purchase intention were mitigated when participants were immersed in a flow state. Ramifications for persuasion and health promotions are discussed. Copyright © 2016 John Wiley & Sons, Ltd

Knowledge Flows Between Advertising and Other Disciplines: A Social Exchange Perspective

Knowledge flows between advertising and other academic disciplines are examined to identify the structure of scientific knowledge, the extent of social exchange and the scientific status of the field. Bibliometric analysis is used to identify who is citing our research and who we cited. Cocitation patterns for the leading advertising journals (Journal of Advertising [JA], Journal of Advertising Research [JAR], International Journal of Advertising [IJA], Journal of Interactive Advertising [JIA], and Journal of Current Issues and Research in Advertising [JCIRA]) and the top 50 citing and cited journals with citation relationships from 2005 to 2014 were examined. Findings revealed that advertising is citing advertising scholarship the most, followed by marketing, consumer research, psychology, and communication. This suggests a "maturing field" where scholars look within the discipline's body of knowledge. In turn, advertising research is cited by advertising, marketing, business (general), communication, and psychology. The overall citing-to-cited ratio suggests that advertising is more a "receiver" than "provider" of knowledge to other disciplines; however, there is variation across the advertising journals. The positioning of advertising journals in the larger disciplinary framework shows close relationships to consumer research and interactive communication. The most common focus among the top-cited articles is digital media, with few articles focusing on traditional advertising. The implications of our findings for the field of advertising are discussed

Crisis Management for Sustainable Corporate Value: Finding a Construal Fit between Social Distance, Crisis Response, and Crisis Severity

Despite growing research on public attributions of crisis responsibility, little is known about the role of perceived social distance to organizations in conjunction with crisis severity and crisis response strategies. Applying construal level theory (CLT) to the crisis communication context, we examined the role of the construal fit between social distance, crisis severity, and crisis response strategy in determining crisis responsibility, negative word-of-mouth (WOM) intentions, and anger. A two (social distance to a crisis: close vs. distant) &times; two (crisis response strategy: defensive vs. accommodating) &times; two (crisis severity: low vs. high) between-subjects experiment revealed two interaction effects: (1) the interaction effect of social distance and crisis response strategy on anger and negative WOM and (2) the interaction effect of social distance and crisis severity on negative WOM. No interaction effects emerged with respect to crisis responsibility. We discuss the theoretical contribution of this study&rsquo;s results&mdash;namely, how social distance to a crisis impacts public reactions to crisis response strategies. We also outline the practical implications for achieving a better construal fit between social distance and crisis response strategy for effective crisis communication, which may serve as an opportunity for sustainable corporate management

Exploring the Impact of Acculturation and Ethnic Identity on Korean U.S. Residents\u27 Consumption Behaviors of Utilitarian versus Hedonic Products

This study examined the impact of acculturation and ethnic identity on Korean U.S. residents\u27 consumption of ethnically associated products that varied in usage between utilitarian and hedonic purposes. Results showed that acculturation negatively influenced ethnic identity, which in turn positively impacted both utilitarian and hedonic product consumption. Whereas ethnic identity mediated the negative impact of acculturation on the consumption of both utilitarian and hedonic products, acculturation also had a positive and direct impact on hedonic product use. The implications of these findings are discussed. © 2014 Copyright Taylor and Francis Group, LLC