bluuebunny/crossref_metadata_2025_split huggingface dataset:
The beneficial rhizobacterium Bacillus velezensis acquires iron from roots via a type VII secretion system for colonization
Authors: Liu Yunpeng , Shu Xia , Chen Lin , Zhang Huihui , Feng Haichao , Sun Xiting , Xiong Qin , Li Guangqi , Xun Weibing , Xu Zhihui , Zhang Nan , Pieterse Corné M.J. , Shen Qirong , Zhang Ruifu 
Published: August 2021

SummaryNiche colonization is the key for bacterial adaptation to the environment, and competition for iron largely determines root colonization by rhizosphere microbes. Pathogenic and beneficial symbiotic bacteria use various unique secretion systems to support plant colonization or acquire limited resources from the environment. However, ubiquitous nonsymbiotic beneficial rhizobacteria have never been reported to use a unique secretion system to facilitate colonization. Here, we show that the type VII secretion system (T7SS) of the beneficial rhizobacterium Bacillus velezensis SQR9 contributes to root colonization. Knocking out T7SS and the major secreted protein YukE in SQR9 caused a significant decrease in root colonization. Moreover, the T7SS and YukE caused iron loss in plant roots in the early stage after inoculation, which contributed to root colonization by SQR9. Interestingly, purified YukE, but not inactivated YukE, could change the permeability of root cells. We speculated that secreted YukE might be directly inserted into the root cell membrane to cause iron leakage, indicating that the bacterial protein and root cell membrane interact directly. Moreover, a bacterial siderophore and the T7SS may be coordinately involved in iron acquisition by B. velezensis SQR9 for efficient root colonization. We showed that the beneficial rhizobacterium B. velezensis SQR9 could acquire iron from roots via the T7SS for rapid colonization. These findings provide the first insight into the function of the unique secretion system in nonsymbiotic beneficial rhizobacteria and reveal a novel mutualism in which plants and bacteria might share iron in a sequential manner.
Development and Characterization of PAR-Trackers: New Tools for Detecting Poly(ADP-ribose) In Vitro and In Vivo
Authors: Challa Sridevi , Ryu Keun W. , Whitaker Amy L. , Abshier Jonathan C. , Camacho Cristel V. , Kraus W. Lee 
Published: August 2021

AbstractADP-ribosylation (ADPRylation) is a reversible post-translation modification resulting in the covalent attachment of ADP-ribose (ADPR) moieties on substrate proteins. Naturally-occurring protein motifs and domains, including WWEs, PBZs, and macrodomains, act as “readers” for protein-linked ADPR. Although recombinant, antibody-like ADPR detection reagents containing these readers have facilitated the detection of ADPR, they are limited in their ability to capture the dynamic nature of ADPRylation. Herein, we describe and characterize a set of poly(ADP-ribose) (PAR) Trackers (PAR-Ts) - optimized dimerization-dependent or split-protein reassembly PAR sensors in which a naturally occurring PAR binding domain, WWE, was fused to both halves of dimerization-dependent GFP (ddGFP) or split Nano Luciferase (NanoLuc), respectively. We demonstrate that these new tools allow the detection and quantification of PAR levels in extracts, living cells, and living tissues with greater sensitivity, as well as temporal and spatial precision. Importantly, these sensors detect changes in cellular ADPR levels in response to physiological cues (e.g., hormone-dependent induction of adipogenesis without DNA damage), as well as xenograft tumor tissues in living mice. Our results indicate that PAR Trackers have broad utility for detecting ADPR in many different experimental and biological systems.
Exploring workplace experiences of transgender individuals in the USA
Authors: Goryunova Elizabeth , Schwartz Anna K , Turesky Elizabeth Fisher 
Published: August 2021

Purpose
The purpose of this paper is to contribute to the understanding of the workplace experiences and access to career-enhancing opportunities of transgender employees and to apprise organization leaders of opportunities to create an all-inclusive workplace environment.

Design/methodology/approach
This phenomenological study used semi-structured interviews with transgender and gender non-conforming individuals in the US. Study participants (n = 12) varied slightly in racial and ethnic identities, the highest level of formal education completed and the industry sector they were employed at the time of interviews.

Findings
The data reveals a lingering presence of dominant narrative (cissexism) in US organizations and its adverse impact on workplace experience and access to career-enhancing opportunities of transgender and gender non-conforming individuals. The participants’ narratives reveal recommendations for effective organizational practices for a transgender-inclusive workplace.

Research limitations/implications
The challenge of recruiting qualified participants from the marginalized group along with the selection criteria of English proficiency and legally adult age resulted in a relatively limited sample (n = 12) nevertheless adequate for the study.

Practical implications
Results of this study point at the urgent need to increase visibility and acceptance of the represented population and expand workplace diversity policies to create inclusive, just and equitable organizations for all individuals that will translate into job satisfaction and improved productivity.

Social implications
This study contributes to developing a culture of inclusion and prevention of discrimination in the workplace thus ensuring respect, safety and agency for gender minority employees.

Originality/value
This study contributes to a better understanding of workplace experiences, access to career-enhancing opportunities of transgender and gender non-conforming individuals and best practices for a transgender-inclusive workplace.
Effect of female executives on Chinese cultural media enterprise efficiency
Authors: Li Ying , Chiu Yung-Ho , Lin Tai-Yu , Cen Hongyi 
Published: August 2021

Purpose
As more women are now being appointed to senior and top management positions and invited to sit on boards of directors, they are now directly participating in strategic company decision-making. As female directors have been found to provide new ideas, increase company competitiveness, efficiency and performance and bring a greater number of external resources to a company than male directors, this paper aims to put female directors as a variable into the data envelopment analysis (DEA) and statistical models to explore the effect of female directors on operating performances. The DEA first quantified and measured the company efficiencies, after which the statistical model analyzed the correlations between the variables to specifically identify the impact of female decision makers on the operating efficiencies in state-owned and private enterprises.

Design/methodology/approach
A novel two-stage, meta-hybrid dynamic DEA was developed to explore Chinese cultural media company efficiencies under optimal input and output resource allocations, after which Tobit Regression was applied to determine the effect of female executives on these efficiencies.

Findings
From 2012 to 2016, the overall efficiencies in Chinese state-owned cultural media enterprises were better than in the private cultural media enterprises. The overall technology gaps (TGs) in the state-owned cultural media enterprises were better than in the private cultural media enterprises.

Originality/value
Previous research has tended to focus on the causal relationships between female senior executives and business performances; however, there have been few studies on the relationships between female executives and company performance from an efficiency perspective (optimal resource allocation). This paper, therefore, is the first to develop a novel two-stage, meta-hybrid dynamic DEA to examine Chinese cultural media enterprise efficiencies, and the first to apply Tobit Regression to assess the effect of female executives on those efficiencies.
Place attachment and brand loyalty: the moderating role of customer experience in the restaurant setting
Authors: Nyamekye Michael Boadi , Adam Diyawu Rahman , Boateng Henry , Kosiba John Paul 
Published: August 2021

PurposeThe purpose of this study is to ascertain the effects of place attachment on brand loyalty. This study further ascertains whether the effects of emotion-based attachment on brand loyalty are stronger for customers who have a positive experience with a restaurant brand. Additionally, the authors investigate whether emotion-based attachment mediates the relationships between identity-based attachments, place dependence and brand loyalty in the restaurant setting.Design/methodology/approachThe authors administered the questionnaire to customers (diners) of restaurants in Ghana, and they were completed via a paper and pencil/pen approach. The authors tested their hypotheses using structural equation modeling.FindingsThe findings show that identity-based and emotion-based attachment enhances brand loyalty within a restaurant setting. The results also show that place dependence attachment promotes emotional bonding with restaurant brands. The study's findings also show that place dependence attachment does not have a direct and positive significant effect on brand loyalty except when an emotional response is produced.Originality/valuePlace attachment studies in a restaurant setting are rare. This study thus contributes to the place attachment literature in restaurants setting.
Corporate social responsibility (CSR), ethical climate and pride in membership moderated by casino dealers’ customer orientation
Authors: Hyun Martin Yongho , Gao Lisa , Lee Seoki 
Published: August 2021

Purpose
This study aims to develop a theoretical framework that specifies how corporate social responsibility (CSR) and ethical climate (ETHIC) affect pride in membership (PRIDE), and in turn, attitudinal responses (i.e. job satisfaction and turnover intention) among employees, solely focusing on dealers in the casino industry. In addition, the moderating role of customer orientation is examined for internally motivated enjoyment (ENJOY) and externally motivated needs (NEED).

Design/methodology/approach
This study uses a non-probability convenience-sampling method by distributing 400 individual questionnaires to respondents. A total of 358 responses are used for data analysis using exploratory and confirmatory factor analyses. Furthermore, this study tests the proposed hypotheses using structural equation modeling.

Findings
This study finds the effect of CSR on ETHIC and the effect of ETHIC on PRIDE along with the subsequent effect on attitudinal responses. Findings also reveal a significant moderating role of ENJOY (NEED) on the relationship between ETHIC (CSR) and PRIDE (PRIDE).

Research limitations/implications
This study provides meaningful contributions to extant casino CSR literature, as well as opportunities for future research. The topic may be further explored from cross-cultural perspectives and adapt a methodology to enhance the generalizability and applicability of the findings.

Originality/value
This study attempts to explore the CSR effectiveness on casino dealers, in whom past empirical examination has found little interest. Moreover, according to the multi-experience model, this study investigates the relationships among CSR, ethical climate and pride in membership that have been rarely verified in the past literature. Finally, this study reveals a significant moderating role of ENJOY and NEED that has not been explored, particularly among casino dealers.
Envy climate and group performance in full-service hotels: the roles of intragroup relationship conflict and competitive climate
Authors: Wu Wen , Ni Dan , Wu Shaoxue , Lu Lu , Zhang Xijing , Hao Shengyue 
Published: August 2021

PurposeThe extant literature mainly focuses on the antecedents and outcomes of envy at the individual level. Workgroups have become ideal units for research on envy given the ubiquitous teamwork in organizations. This study aims to examine whether, how and when envy climate can influence group performance.Design/methodology/approachThe authors analyzed data collected in three waves from a sample of 72 groups with 475 team members in full-service hotels in China.FindingsEnvy climate was negatively associated with group performance via intragroup relationship conflict. Furthermore, competitive climate moderated the effect of envy climate on intragroup relationship conflict and the indirect effect of envy climate on group performance through intragroup relationship conflict.Practical implicationsThe present research offers organizations valuable insights into how to minimize the climate of envy and competition within a group and relieve the relationship conflict that may damage group performance.Originality/valueDrawing on a social functional perspective of emotions, this study enriches the envy research by conceptualizing envy climate as a collective perception and clarifying its effect on group performance. The authors extend the understanding of envy climate by showing how a climate of envy embedded in a group influences group performance and also explain when group members may be more likely to act in a destructive way to respond to such a climate.
The after-shock effects of high-performers turnover in hotel industry: a multi-level study
Authors: Khan Ali Nawaz , Khan Naseer Abbas , Bodla Ali Ahmad 
Published: August 2021

PurposeHigh-performing employees are a hotel’s most important asset: they care for what they do, go beyond and beyond the scope of duty and continually strive to do better. The purpose of this multi-level study is to look into the influence of high-talent turnover on organizational reputation via social capital and trust deficits. Furthermore, the current research explores the influence of human capital investment (HCI) on the mediating effects of trust deficit and social capital in the association between high talent turnover rate and organizational reputation using human resource theory and social capital theory.Design/methodology/approachThe authors examined the hypotheses using multi-source and multi-times data of 805 respondents (including senior human resources officers and employees) from 85 hotels.FindingsThe present study revealed interesting findings that the HCI failed to buffer the interfering role of trust deficit in the negative association between high-performing personnel turnover rate and organizational reputation.Practical implicationsHigh-performing personnel turnover and underlying mechanisms play a significant role in eroding a hotel’s reputation in the hotel industry. Hotel management should focus on reducing high-performing talent turnover and underlying mechanisms to maintain and improve the hotel’s reputation.Originality/valueThis study provides better understating into the process by exploring that high-performer turnover can damage an organization’s reputation, which has been overlooked by academics who researched the hotel industry.
An embedded bandit algorithm based on agent evolution for cold-start problem
Authors: Qiu Rui , Ji Wen 
Published: August 2021

Purpose
Many recommender systems are generally unable to provide accurate recommendations to users with limited interaction history, which is known as the cold-start problem. This issue can be resolved by trivial approaches that select random items or the most popular one to recommend to the new users. However, these methods perform poorly in many cases. This paper aims to explore the problem that how to make accurate recommendations for the new users in cold-start scenarios.

Design/methodology/approach
In this paper, the authors propose embedded-bandit method, inspired by Word2Vec technique and contextual bandit algorithm. The authors describe user contextual information with item embedding features constructed by Word2Vec. In addition, based on the intelligence measurement model in Crowd Science, the authors propose a new evaluation method to measure the utility of recommendations.

Findings
The authors introduce Word2Vec technique for constructing user contextual features, which improved the accuracy of recommendations compared to traditional multi-armed bandit problem. Apart from this, using this study’s intelligence measurement model, the utility also outperforms.

Practical implications
Improving the accuracy of recommendations during the cold-start phase can greatly raise user stickiness and increase user favorability, which in turn contributes to the commercialization of the app.

Originality/value
The algorithm proposed in this paper reflects that user contextual features can be represented by clicked items embedding vector.
London Fire Brigade's screen and treat approach to the Grenfell Tower incident
Authors: Steel Craig , Travers Zoe , Meredith Lynette , Lee Deborah , Conti Michael , Scoging Anne 
Published: August 2021

Purpose
The purpose is to report on the mental health response to the Grenfell incident within the London Fire Brigade (LFB).

Design/methodology/approach
The LFB implemented screening for the symptoms of posttraumatic stress disorder (PTSD) at 28 days, 3 months and 6 months for all personnel directly involved in the incident.

Findings
The prevalence of PTSD within frontline personnel was 13.4% at 28 days, falling to 7.6% at 6 months. The LFB's internal Counselling and Wellbeing Service offered treatment to those scoring above the cut-off for PTSD along with accepting self-referral and referrals from line managers and occupational health. There were 139 referrals within the 12-month period following the incident.

Research limitations/implications
The outcomes for those who engaged in treatment are broadly in line with other studies evaluating post-disaster interventions. Issues for consideration within national guidelines are discussed.

Practical implications
The screen and treat approach adopted by LFB was shown to be a feasible approach to use within such a scenario.

Originality/value
The current study reports on a screen and treat approach to one of the largest single incidents in the UK in recent years.
Students’ perception and satisfaction of services provided by public and private higher education institutes: a case study in Albania
Authors: Kruja Drita , Ha Huong , Tabaku Elvira 
Published: August 2021

Purpose
There have been many research studies on students’ satisfaction of services in universities in developed countries. However, students’ expectation and satisfaction of public and private higher education institutions (HEIs) with regard to service quality in Eastern Europe have been under-researched. Therefore, this study aims to offer an empirical examination of student satisfaction of the service quality of public and private HEIs in Albania by evaluating the gap between students’ expectation and perception and the effect of student satisfaction on retention in HEIs.

Design/methodology/approach
The survey instrument used in this study was the student satisfaction inventory in the USA. Primary data were collected from a survey of students in two private and four public HEIs in Albania. A total of 554 valid responses were collected from the survey.

Findings
The findings suggested that there were performance gaps between public and private HEIs. Public universities performed well in terms of concern for the individual, campus support services, student-centeredness and instructional effectiveness. Private HEIs scored well in terms of concern for the individual, academic advising effectiveness, instructional effectiveness and safety and security (parking). There is a significant difference in students’ perception of the overall satisfaction of HEIs. Students’ overall satisfaction positively impacts their retention.

Originality/value
Overall, this study provides valuable insights to private and public HEIs’ administrators regarding to student satisfaction and retention. The findings will have far-reaching managerial implications for all groups of stakeholders in terms of the service delivery by universities in Albania and Eastern Europe.
Why discontinue Facebook usage? An empirical investigation based on a push–pull–mooring framework
Authors: Fu Shaoxiong , Li Hongxiu , Liu Yong 
Published: August 2021

PurposeSocial media platforms are currently facing the challenge of declining user activity. Building on the push–pull–mooring (PPM) framework, the current study developed a research model to evaluate factors that affect Facebook discontinuance.Design/methodology/approachThe proposed research model assessed how push factors (e.g. Facebook fatigue and dissatisfaction), a pull factor (e.g. alternative attractiveness) and mooring factors (e.g. personal norms and habit of using Facebook) affected the discontinued usage behavior regarding Facebook. The proposed research model was validated using empirical data (n = 412) collected from Facebook users.FindingsFacebook fatigue, dissatisfaction and alternative attractiveness significantly and positively affected discontinued Facebook usage. Personal norms and habit of using Facebook had a converse influence in this regard. Dissatisfaction had a stronger positive impact than Facebook fatigue and alternative attractiveness on the discontinued usage behavior regarding Facebook. Habits of using Facebook had a greater negative effect than personal norms of using Facebook on the discontinued usage behavior regarding Facebook by users.Originality/valueThis study extends extant literature on social media discontinuance to identify the antecedents of discontinuous usage behavior in social media. This study enriches the literature on social media discontinuance by shedding light on the different degrees of effect of the push, pull and mooring factors on discontinuous social media usage behavior.
Covid-19, disrupted vegetable supply chain and direct marketing: experiences from India
Authors: Tripathi Amarnath , Bharti Nisha , Sardar Sucheta , Malik Sushant 
Published: August 2021

PurposeThis paper examines the impact of the Covid-19 induced lockdown on selected vegetables to confirm if the vegetable supply chain was disrupted during that period. It attempts to see if direct marketing via FPOs/FPCs helped Indian farmers to cope with adverse situations aroused in vegetable marketing.Design/methodology/approachThis study opted for mixed methods research. First, a granular data set comprising daily observation on wholesale price and the market arrival of vegetables were analysed. Descriptive statistics and Kalmogorov-Smirnov test were used to understand the severity of disruptions in the vegetable supply chain in India during the lockdown. Then, qualitative information from different stakeholders engaged in the vegetable marketing was collected through a phone survey and assessed using content analysis to comprehend how FPOs have helped farmer’s during this crisis.FindingsThis paper confirms disruptions in the vegetable supply chain. Quantities of chosen vegetables arriving in the mandis were significantly lower than in the previous year for all phases of lockdown. Consequently, prices were much higher than in 2019–2020 for both the lockdown and subsequent phases unlock. Results further suggest that those farmers who are already in networks of FPOs/FPCs are able to get benefited. It was also observed that direct marketing through institutional supports is being more explored in the regions where FPOs/FPCs already exist.Research limitations/implicationsSince it is an exploratory study involving a small sample, the research results may lack generalisability.Originality/valueThis study provides scope for direct marketing through FPOs/FPCs in improving the food supply chain.