bluuebunny/crossref_metadata_2025_split huggingface dataset:
Asymmetric molecular architecture of the human γ-tubulin ring complex
Authors: Wieczorek Michal , Urnavicius Linas , Ti Shih-Chieh , Molloy Kelly R. , Chait Brian T. , Kapoor Tarun M. 
Published: October 2019

SUMMARYThe γ-tubulin ring complex (γ-TuRC) is an essential regulator of centrosomal and acentrosomal microtubule formation 1–4. Metazoan γ-TuRCs isolate as ∼2 MDa complexes containing the conserved proteins γ-tubulin, GCP2 and GCP3, as well as the expanded subunits GCP4, GCP5, and GCP6 3,5,6. However, in current structural models, γ-TuRCs assemble solely from subcomplexes of γ-tubulin, GCP2 and GCP3 7. The role of the metazoan-specific subunits in γ-TuRC assembly and architecture are not currently known, due to a lack of high resolution structural data for the native complex. Here, we present a cryo-EM structure of the native human γ-TuRC at 3.8Å resolution. Our reconstruction reveals an asymmetric, single helical-turn and cone-shaped structure built from at least 34 polypeptides. Pseudo-atomic models indicate that GCP4, GCP5 and GCP6 form distinct Y-shaped assemblies that structurally mimic GCP2/GCP3 subcomplexes and are distal to the γ-TuRC “seam”. Evolutionary expansion in metazoan-specific subunits diversifies the γ-TuRC by introducing large (>100,000 Å2) surfaces that could interact with different regulatory factors. We also identify an unanticipated structural bridge that includes an actin-like protein and spans the γ-TuRC lumen. Despite its asymmetric composition and architecture, the human γ-TuRC arranges γ-tubulins into a helical geometry poised to nucleate microtubules. The observed compositional complexity of the γ-TuRC could self-regulate its assembly into a cone-shaped structure to control microtubule formation across diverse contexts, e.g. within biological condensates 8 or alongside existing filaments 9.
The persuasive effects of emotional green packaging claims
Authors: Aagerup Ulf , Frank Anna-Sofia , Hultqvist Evelina 
Published: October 2019

Purpose
The purpose of this paper is to investigate the effects of rational green packaging claims vs emotional green packaging claims on consumers’ purchase propensity for organic coffee.

Design/methodology/approach
Three within-subjects experiment were carried out (N=87, N=245, N=60). The experimental design encompasses packaging with rational green claims, emotional green claims, as well as a neutral (control) claim. Measured variables are introduced to assess participants’ environmental commitment and information processing ability. A manipulated between-subjects variable is introduced to test how distraction interacts with preference for the claims.

Findings
Overall, consumers prefer products with green claims over those with neutral (control) claims, and products with emotional green claims to those with rational green claims. The studies also reveal that this effect is moderated by participants’ environmental commitment, information processing ability and by distraction. The findings were statistically significant (p<0.05).

Research limitations/implications
As a lab experiment, the study provides limited generalizability and external validity.

Practical implications
For most organic FMCG products, it is advisable to employ emotional packaging claims.

Social implications
The presented findings provide marketers with tools to influence consumer behavior toward sustainable choices.

Originality/value
The paper validates previous contributions on the effects of product claim types, and extends them by introducing comprehensive empirical data on all the Elaboration Likelihood Model’s criteria for rational decision-making; motivation, opportunity and ability.
Investigation on human rights ethics in artificial intelligence researches with library literature analysis method
Authors: Miao Zeyi 
Published: October 2019

Purpose
The purpose of this paper was to identify whether artificial intelligence (AI) products can possess human rights, how to define their rights and obligations and what ethical standards they should follow. In this study, the human rights ethical dilemma encountered in the application and development of AI technology has been focused on and analyzed in detail in the light of the existing research status of AI ethics.

Design/methodology/approach
In this study, first of all, the development and application of AI technology, as well as the concept and characteristics of human rights ethics, are introduced. Second, the human rights ethics of AI technology are introduced in detail, including the human rights endowment of AI machines, the fault liability of AI machines and the moral orientation of AI machines. Finally, the approaches to human rights ethics are proposed to ensure that AI technology serves human beings. Every link of its research, production and application should be strictly managed and supervised.

Findings
The results show that the research in this study can provide help for the related problems encountered in AI practice. Intelligent library integrates human rights protection organically so that readers or users can experience more intimate service in this system. It is a kind of library operation mode with more efficient and convenient characteristics, which is based on digital, networked and intelligent information science. It aims at using the greenest way and digital means to realize the reading and research of human rights protection literature in the literature analysis method.

Originality/value
Intelligent library is the future development mode of new libraries, which can realize broad interconnection and sharing. It is people-oriented and can make intelligent management and service and establish the importance of the principle of human rights protection and the specific idea of the principle. The development of science and technology brings not only convenience to people's social life but also questions to be thought. People should reduce its potential harm, so as to make AI technology continue to benefit humankind.
Empowerment, passion and job performance: implications from Ghana
Authors: Appienti William Ansah , Chen Lu 
Published: October 2019

Purpose
Drawing upon the “too-much-of-a-good-thing (TMGT)” effect and conservation of resources (COR) theory, the purpose of this paper is to examine the mediation mechanism between empowering leadership and employee job performance. Specifically, the authors propose a curvilinear relationship between empowering leadership and job performance, and also suggest that employee harmonious and obsessive work passions mediate the curvilinear relationship between empowering leadership and job performance. Further the moderation role of collectivism orientation (CO) in the relationship between empowering leadership and job performance is also examined.

Design/methodology/approach
Questionnaires are used to obtain survey data from 256 supervisor–subordinate dyads in three companies in the communication sector of Ghana. A follow-up interview was also conducted to enhance explanation of research findings. Hierarchical regression analysis is used to analyze the associations among the variables.

Findings
The results revealed that the significant inverted U-shaped relationship between empowering leadership and subordinate job performance is mediated by both harmonious and obsessive passion for work. A significant moderation effect of CO in the empowering leadership–job performance relationship could not be established.

Originality/value
This study adapts the “TMGT” effect and COR theory in the explanation of an integrated model including empowering leadership, job performance, employee passion for work, and CO in the Ghanaian context.
Exploring blockchain implementation in the supply chain
Authors: van Hoek Remko 
Published: October 2019

PurposeThere is great interest in blockchain in the supply chain yet there is little empirical research to support the consideration of the technology. Ferdows (2018) calls for research aimed at learning from pioneers in the field and Gartner points out that the interest in blockchain holds similarities to the interest surrounding RFID 15 years ago. As a result, there may be opportunities to leverage insights from RFID research to inform the consideration of blockchain. The purpose of this paper is to explore how the Reyeset al.(2016) framework for the implementation of RFID may inform the consideration of blockchain in the supply chain.Design/methodology/approachA two-stage approach is used to explore RFID implementation considerations from the Reyeset al.(2016) RFID implementation framework, using an initial exploration of managers interested in blockchain using a focus group and a survey and to more in depth explore three case companies pioneering blockchain.FindingsSeveral RFID implementation considerations can inform the consideration of blockchain but there are also differences in considering blockchain. A framework is developed that details considerations found to be relevant by implementation stage.Originality/valueThis paper adds to the limited amount of empirical research on blockchain in the supply chain and advances research beyond the consideration of use cases into the exploration of actual implementation of blockchain in the supply chain. The decision framework developed both leverages and nuances findings from RFID research and can inform managerial decision making. It also adds to research a multi-stage approach to implementation and uncovers rich opportunity to further learn from pioneers.
Emotion as signal of product quality
Authors: Wang Xiaopan , Guo Junpeng , Wu Yi , Liu Na 
Published: October 2019

Purpose
Information asymmetry is an inevitable issue in e-commerce and largely hampers the development of online shopping. The purpose of this paper is to propose a model to investigate the emotional content of online customer reviews, which are considered an efficient way to reduce information asymmetry, as a potential signal of product quality. The moderating effects of perceived empathy and cognitive effort are also explored on the basis of signaling theory.

Design/methodology/approach
A laboratory experiment with 120 subjects was used to empirically test the proposed research hypotheses. The subjects were randomly assigned to two treatment groups, with 60 subjects in each group. ANOVA, linear regression and binary logistic regression were used.

Findings
The emotional content of online customer reviews positively influences perceived product quality, which subsequently and positively affects purchase decisions. The emotional content of online customer reviews greatly influences perceived product quality when perceived empathy or cognitive effort is high.

Originality/value
This study is the first to extend extrinsic cues to emotional content on the basis of signaling theory and reveals the important role of emotional content of reviews. Moreover, the mediating effect of perceived product quality and the moderating effect of perceived empathy and cognitive effort illustrate the mechanism of the influence of emotional content on purchase decision. Findings demonstrate the positive signal of emotional content and provide important practical implications for sellers and customers.
Variable impedance control of finger exoskeleton for hand rehabilitation following stroke
Authors: Zhang Fuhai , Lin Legeng , Yang Lei , Fu Yili 
Published: October 2019

Purpose
The purpose of this paper is to propose a variable impedance control method of finger exoskeleton for hand rehabilitation using the contact forces between the finger and the exoskeleton, making the output trajectory of finger exoskeleton comply with the natural flexion-extension (NFE) trajectory accurately and adaptively.

Design/methodology/approach
This paper presents a variable impedance control method based on fuzzy neural network (FNN). The impedance control system sets the contact forces and joint angles collected by sensors as input. Then it uses the offline-trained FNN system to acquire the impedance parameters in real time, thus realizing tracking the NFE trajectory. K-means clustering method is applied to construct FNN, which can obtain the number of fuzzy rules automatically.

Findings
The results of simulations and experiments both show that the finger exoskeleton has an accurate output trajectory and an adaptive performance on three subjects with different physiological parameters. The variable impedance control system can drive the finger exoskeleton to comply with the NFE trajectory accurately and adaptively using the continuously changing contact forces.

Originality/value
The finger is regarded as a part of the control system to get the contact forces between finger and exoskeleton, and the impedance parameters can be updated in real time to make the output trajectory comply with the NFE trajectory accurately and adaptively during the rehabilitation.
A framework for understanding citizens’ political participation in social media
Authors: Pandey Vidushi , Gupta Sumeet , Chattopadhyay Manojit 
Published: October 2019

PurposeThe purpose of this paper is to explore how the use of social media by citizens has impacted the traditional conceptualization and operationalization of political participation in the society.Design/methodology/approachThis study is based on Teorellet al.’s (2007) classification of political participation which is modified to suit the current context of social media. The authors classified 15,460 tweets along three parameters suggested in the framework with help of supervised text classification algorithms.FindingsThe analysis reveals that Activism is the most prominent form of political participation undertaken by people on Twitter. Other activities that were undertaken include Formal Political participation and Consumer participation. The analysis also reveals that identity of participant does not play a classifying role as expected from the theoretical framework. It was found that the social media as a platform facilitates new forms of participation which are not feasible offline.Research limitations/implicationsThe current work considers only the microblogging platform of Twitter as the data source. For a more comprehensive insight, analysis of other social media platforms is also required.Originality/valueTo the best of the authors’ knowledge, this is one of the few analyses where such a large database covering multiple social media events has been created and analysed using supervised text classification algorithms. A large proportion of previous studies on social media have been based on case study and have limited analysis to only a particular event on social media. Although there exist a few works that have studied a vast and varied collection of social media data (Gaby and Caren, 2012; Shirazi, 2013; Rane and Salem, 2012), such efforts are few in number. This study aims to add to that stream of work where a wider and more generalized set of social media data is studied.
International equity REITs: five major future directions
Authors: Parker David 
Published: October 2019

PurposeThe purpose of this paper is to analyze chapters from the recently publishedRoutledge REITs Research Handbookto identify five major future directions for international equity REITs.Design/methodology/approachLiterature review and critical analysis of chapters from the recently publishedRoutledge REITs Research Handbook.FindingsThe five major future directions for international equity REITs are proposed to comprise an increasing focus on people and on cash flow rather than on property (with the cognitive risk attaching thereto), the changing nature of REITs as they respond to changes in society globally, the evolution of the global flagship REIT and the emergence of global regulation of REITs (particularly in the spheres of debt and leverage).Research limitations/implicationsWhile five major future directions for international equity REITs are identified which may have an impact on the risk/return profile, further research is required to determine which directions may be significant and which trivial and which may be independent and which interactive.Practical implicationsIdentification of five major future directions for international equity REITs provides managers and promoters with guidance concerning potential areas of focus for future product development in the REIT sector.Originality/valueWhile quantitative research concerning international equity REITS abounds, qualitative research is limited with little academic research undertaken into possible future directions for the sector.
Revisiting the role of relationship benefits in online retail
Authors: Soni Pavleen 
Published: October 2019

Purpose
Given the importance of relationship benefits in creating customer satisfaction, the purpose of this paper is to investigate the moderating role of relationship benefits (special treatment benefits and confidence benefits) on relationship quality and word of mouth (WOM) for online retailers. The conditional mediating role of relationship quality between customer satisfaction and WOM is also examined.

Design/methodology/approach
A sample of 700 MBA students from two universities in Punjab (North India) has been used to collect data. Structural equation modelling and PROCESS Macro (Hayes (2017) have been used for data analysis (mod mod mediation).

Findings
When customers perceive high confidence benefits, special treatment benefits moderate the mediational role of relationship quality between customer satisfaction and WOM. Specific conditions under which use of confidence benefits and special treatment benefits are successful for online retailers have also been identified.

Practical implications
Tailored use of special treatment benefits with confidence benefits in appropriate combinations will help the online retailers in segmenting the customers and differentiating amongst them according to the customers’ receptivity towards these benefits. Marketers can devise communication strategies, create customer segments and position their services using the results obtained in the study.

Originality/value
The present study is the first of its kind which clarifies as to why the previous literature considered special treatment benefits as less relevant to customers. It also establishes the situations in which these benefits successfully moderate the effect of customer satisfaction in developing relationship quality and eliciting positive WOM in the Indian internet retailing context.
Behavioral criminology and public policy
Authors: Loughran Thomas A. 
Published: October 2019

Research SummaryPublic policy, including crime policy, is heavily shaped by economic theory. Recently, refinements based on the application of behavioral insights into the study of public policy applications have become en vogue. Although criminologists have made some inroads into incorporating behavioral principals into the study of crime and offender decision‐making, these contributions have mainly been limited to the area of risk. In this article, I offer a more widespread description of how behavioral economics (BE) can be applied to the study of offender decision‐making and crime policy. Specifically, I focus on several main areas that move beyond the traditional foci on perceptions of risk: intertemporal choice, criminal labor supply, mental accounting and consumption, and social preferences. For each topical area, I first identify a presumable, normative model that could reasonably be drawn from traditional rational choice theory. I then describe ways, based on existing contributions from BE, that scholars have sought to make the assumptions (and anomalies) of this model more realistic.Policy ImplicationsThe primary aim of this article is to highlight implications to theory and policy that increase the utilization of BE by criminologists.
Determination of live and dead Komagataeibacter xylinus cells and first attempt at precise control of inoculation in nanocellulose production
Authors: Zou Xiaozhou , Zhang Shuo , Chen Lin , Hu Junqing , Hong Feng F. 
Published: October 2019

SummaryThe timely enumeration of cells of nanocellulose‐producing bacteria is challenging due to their unique growth properties. To better understand the metabolism of the bacteria and better control the concentration of living cells during cultivation, a prompt cell counting technology is crucial and urgently required. In this work, two fluorescent dyes, the asymmetrical anthocyanidin dye SYBR Green I (SG) and propidium iodide (PI), were first combined for Komagataeibacter xylinus species to determine live/dead bacterial cells quantitatively and promptly. The number of live and dead K. xylinus cells determined using an epifluorescence microscope corresponded well to the results obtained using a fluorescence microplate reader. The R2 values were 0.9986 and 0.9920, respectively, and were similar to those obtained with the LIVE/DEAD® BacLightTM commercial kit. SG/PI double‐staining showed proper efficiency in distinguishing live/dead cells for the K. xylinus strain (R2 = 0.9898). The technology was applied to standardize four different K. xylinus strains, and the initial cell concentration of the strains was precisely controlled (no significant difference among the strains, P> 0.05). The cellulose yield per live cell was calculated, and significant differences (P < 0.05) were found among the four strains in the following order: DHU‐ATCC‐1> DHU‐ZCY‐1> DHU‐ZGD‐1> ATCC 23770. The study shows (i) the application of the SG/PI staining to standardizing inocula for bacterial cellulose production so that a more accurate comparison can be made between different strains, and (ii) the lower cost of using SG rather than the SYTO 9 of the commercially available LIVE/DEAD® BacLightTM kit.
Misuse of benzodiazepines: Prevalence and impact in an inpatient population with psychiatric disorders
Authors: Panes Arnaud , Verdoux Hélène , Fourrier‐Réglat Annie , Berdaï Driss , Pariente Antoine , Tournier Marie 
Published: October 2019

AimsUse and misuse of benzodiazepine might be very prevalent in patients with acute psychiatric symptoms, whereas they might be associated with specific adverse events in this population. The study investigated their prevalence in these patients. Secondary objectives were to identify risk factors for misuse of benzodiazepines, and its impact.MethodsA cohort study was based on the hospital's electronic patient records and conducted in patients aged 18 years and over and admitted to a psychiatric hospital. They were followed up for 84 days or until the end of hospitalisation. Four variables of misuse were built: excessive duration of treatment, type of product, excessive dosage and concomitant benzodiazepines. Backward stepwise multivariate logistic regression analysis was used to assess risk factors for each misuse criterion, on the 1 hand, and impact of benzodiazepine misuse, on the other.ResultsIn total, 511 psychiatric inpatients were included with 89.0% of them exposed to benzodiazepine. Discharge prescription included no benzodiazepine or a dosage lower than the maximum dosage prescribed during hospitalisation for 78.2% of patients exposed to benzodiazepine during their stay. Of benzodiazepine treatments, 31.4% were associated with at least 1 misuse criterion. Excessive dosage was associated with age ≥65 years (OR 11.57; 95% confidence interval 4.92–27.17), substance/alcohol use disorders (3.35; 95% confidence interval 1.70–6.62) and parenthood (0.49; 0.25–0.97). Some criteria of benzodiazepine misuse were associated with a higher frequency of adverse events occurring after treatment initiation.ConclusionsMisuse of benzodiazepines is very common in inpatients with psychiatric disorders. These findings should alert clinicians to comply with clinical recommendations.