bluuebunny/crossref_metadata_2025_split huggingface dataset:
Why do customers intend to continue using internet-based sharing economy service platforms? Roles of network externality and service quality
Authors: Cheng Yung-Ming 
Published: July 2020

PurposeThe purpose of this study is to integrate network externality and service quality as antecedents to the synthesis of expectation–confirmation model (ECM) and perceived ease of use (PEOU) in explaining customers’ continuance intention of internet-based sharing economy service platforms.Design/methodology/approachSample data for this study were collected from students enrolled in a comprehensive university in Taipei, Taiwan. A total of 600 questionnaires were distributed in various campus locations, and 510 usable questionnaires were analyzed in this study, with a usable response rate of 85.0%. Collected data were analyzed using structural equation modeling.FindingsThe primary findings are as follows. First, service enablers’ online service quality positively affected customers’ perceived usefulness (PU), confirmation and PEOU of internet-based sharing economy service platforms, which directly or indirectly explained customers’ satisfaction and continuance intention of the platforms. Next, service providers’ offline service quality positively influenced customers’ PU of internet-based sharing economy service platforms, which in turn caused customers’ satisfaction and continuance intention of the platforms. Finally, network externality from customers’ side and service providers’ side all positively affected customers’ PU of internet-based sharing economy service platforms, which in turn led to customers’ continuance intention of the platforms.Originality/valueFirst, this study contributes to the identification of network externality and service quality that may reveal deep insights to the understanding of customers’ continuance intention of internet-based sharing economy service platforms greatly driven by their confirmation of expectations and satisfaction with the platforms. Next, the empirical evidence on capturing ECM and PEOU for completely explaining the antecedents of customers’ continuance intention of internet-based sharing economy service platforms is well documented. Hence, this study’s findings have significantly shed light on the possible formulation of a richer post-adoption model.
Activist identity construction of Madam C.J. Walker
Authors: Hasan Md. Kamrul , Hayek Mario Joseph , Williams, Jr Wallace A. , Pane-Haden Stephanie , Gelvez Maria Paula Martinez 
Published: July 2020

PurposeThe purpose of this paper is twofold. First, this paper seeks to formalize a definition of activist entrepreneurship and differentiate it from social entrepreneurship. Second, this paper proposes a model that explains how the storytelling process, in the form of the message and means of communication, influences the activist identity process and consequently the legitimacy of the activist entrepreneur.Design/methodology/approachThis paper explains the historical method and offers an overview of the unique case of Madam C.J. Walker and analyzes how she gained legitimacy as an activist entrepreneur by conveying psychological capital (Psycap) concepts in her message and political skill in the means of her communication. The paper also analyzed books being written on her and also letters that were exchanged between herself and her lawyer F.B. Ransom.FindingsThe authors have found out that Madam Walker used Psycap elements such as self-efficacy, hope, resiliency and optimism as message and elements of political skill such as social astuteness, interpersonal skill, networking ability and apparent sincerity as means to communicate the message toward her followers and built a legitimate social identity where she had won the trust of them.Research limitations/implicationsThe primary limitation of this paper is that it is theoretical in nature and uses only one case study to support the theoretical model. However, when analyzing complex relationships, historical cases offer a wealth of insight to solve the problem at hand.Originality/valueBy using the elements of the model discussed in the research paper properly, people could create a legitimate identity for themselves where any message they give to their employees, colleagues and sub-ordinates would be viewed as a selfless one and that would increase the chances of their messages or orders being accepted and obeyed by the followers.
A data mining approach for lubricant-based fault diagnosis
Authors: Wakiru James , Pintelon Liliane , Muchiri Peter , Chemweno Peter 
Published: July 2020

PurposeThe purpose of this paper is to develop a maintenance decision support system (DSS) framework using in-service lubricant data for fault diagnosis. The DSS reveals embedded patterns in the data (knowledge discovery) and automatically quantifies the influence of lubricant parameters on the unhealthy state of the machine using alternative classifiers. The classifiers are compared for robustness from which decision-makers select an appropriate classifier given a specific lubricant data set.Design/methodology/approachThe DSS embeds a framework integrating cluster and principal component analysis, for feature extraction, and eight classifiers among them extreme gradient boosting (XGB), random forest (RF), decision trees (DT) and logistic regression (LR). A qualitative and quantitative criterion is developed in conjunction with practitioners for comparing the classifier models.FindingsThe results show the importance of embedded knowledge, explored via a knowledge discovery approach. Moreover, the efficacy of the embedded knowledge on maintenance DSS is emphasized. Importantly, the proposed framework is demonstrated as plausible for decision support due to its high accuracy and consideration of practitioners needs.Practical implicationsThe proposed framework will potentially assist maintenance managers in accurately exploiting lubricant data for maintenance DSS, while offering insights with reduced time and errors.Originality/valueAdvances in lubricant-based intelligent approach for fault diagnosis is seldom utilized in practice, however, may be incorporated in the information management systems offering high predictive accuracy. The classification models' comparison approach, will inevitably assist the industry in selecting amongst divergent models' for DSS.
Immigrant entrepreneurs and community social capital: an exploration of motivations and agency
Authors: Gomez Claudia , Perera B. Yasanthi , Wesinger Judith Y. , Tobey David H. 
Published: July 2020

PurposeThe social capital used to access ethnic community resources is widely recognized in the literature as being important for immigrant entrepreneurship. However, there is limited knowledge regarding the extent to which immigrant entrepreneurs' agency, specifically their motivations, influence their use of, and contributions to, their ethnic social capital. In this paper, the authors explore this relationship.Design/methodology/approachBased on a qualitative approach, this research utilizes semi-structured interviews and thematic analysis to identify the motivations, sources and effects of ethnic social capital.FindingsThis research indicates that immigrant entrepreneurs have mixed motives when engaging with their ethnic communities. The findings suggest that the immigrant entrepreneurs' social capital–mediated interactions within their ethnic community are driven not only by the social structure but that their agency, specifically their motivations, play an important role in them. While entrepreneurs hold mixed motives, they recognize the importance of business success. Thus, they make concessions to their ethnic community and utilize its resources if doing so benefits their business.Research limitations/implicationsThis research explores the role that immigrant entrepreneurs' motivations play in how they use and contribute to immigrant community social capital. By doing so, this study brings agency to the forefront of the discussion on immigrant entrepreneurship and social capital.Practical implicationsThis study provides insight into the connection between the extent to which immigrant entrepreneurs utilize and contribute to their ethnic community's social capital, their motivations for doing so and the effect that these factors have on the businesses as well as their ethnic communities. This understanding might be useful for organizations seeking to foster immigrant entrepreneurship as well as for entrepreneurs themselves.Originality/valueIndividuals' motivations as they relate to social capital involve a variable that is rarely, if ever, considered – that is, individual agency. Thus, this research contributes this perspective to the immigrant entrepreneurship literature but also more broadly to the social capital and entrepreneurship fields. This research can be extended to understand the impact of entrepreneurs' motivations on the communities in which they are embedded.
Comparative study of graphic-based tag clouds: theory and experimental evaluation for information search
Authors: Ma Xiaoyue , Ma Hao 
Published: July 2020

PurposeGraphic-based tag clouds aim to visually represent tag content and tag structure, and then to better represent tagged information for later search. However, few studies have clarified the features among varied visualization approaches involved in graphic-based tag clouds and compared them for the purpose of information search.Design/methodology/approachAfter reviewing four kinds of graphic-based tag clouds, an experimental demonstration was conducted in our study to verify how user performs in information search for a general seeking task by using them. Precision ratio, recall ratio, clicks on search and time for search were four variables tested in the experiment. Also, two supplementary tests were respectively carried out to manifest how graphic-based tag clouds contributed to the identification of target tags and tag clusters.FindingsThe experimental results showed that compared to tag content visual tag structure was more important to find related tags from tag clouds for information search. In addition, tag clouds that visually represented the semantic relationships within tags could make user more confident about their search result and carry out a shorter learning process during searching, which signified a tag-based information search path when visual elements were applied.Originality/valueThis research is one of the first to illustrate systematically the graphic-based tag clouds and their impacts on information search. The research findings could suggest on how to build up more effective and interactive tag clouds and make proposition for the design of search user interface by using graphic-based tag clouds.
A methodology for identifying critical factors influencing land value in urban areas: a case study of Kerala, India
Authors: BV Binoy , MA Naseer , PP Anil Kumar 
Published: July 2020

PurposeLand value is a measure of the specific features of a property, excluding buildings and other developments. Land value varies depending on the economic, geographic and political aspects of a particular location. The primary purpose of the paper is to identify the general and location-specific attributes impacting property prices in urban Kerala.Design/methodology/approachThe objective of the current study was achieved through a three-cycle Delphi survey and relative importance index (RII) approach. The experts who aided in the survey had a mutual interest in the subject but came from different backgrounds like property valuation, real estate, urban and environmental planning. The initial group of variables identified from the literature was expanded and scrutinized in the first cycle of the Delphi survey. The variables were grouped into five major categories and 13 subcategories based on the literature and expert opinion. In the subsequent stages, the short-listed variables were rated on a seven-point Likert scale until a consensus was attained. The top-ranked variables were identified through the RII method as the critical factors influencing land value in urban Kerala.FindingsThe results indicate that road accessibility and proximity to nuisance sources are the most crucial parameters. The outcome of the study will provide a better understanding of the dynamics of land value and the influencing factors in urban areas.Originality/valuePrevious studies do not give much consideration for the location-specific variability on the influencing parameters. Property management research has not considered the usage of expert opinion and RII for variable selection.
Organizational politics and work-family conflict: the hospitality industry in Bangladesh
Authors: Arefin Md. Shamsul , Alam Md. Shariful , Islam Nazrul , Molasy Mateusz 
Published: July 2020

PurposeResearchers have shown increasing interest, in recent times, in organizational politics and how it affects employees and organizations. This paper aims to investigate how perceived organizational politics (POPS) impact employee behaviors such as task performance, organizational citizenship and turnover intention, by affecting work-family conflict.Design/methodology/approachA sample of 287 full-time frontline hotel employees in Bangladesh was collected. A hierarchical regression analysis was applied to test the hypotheses. Data were analyzed using SPSS and AMOS software.FindingsThe results show that work–family conflict plays a mediating role in the indirect effect of POPS on task performance, organizational citizenship behavior (OCB) and turnover intention. The findings of the study also suggest that POPS has a positive association with work–family conflict and turnover intention, and negative association with task performance and OCB.Research limitations/implicationsThis study cannot confirm causal inference, which can be the scope for future studies.Practical implicationsManagers may design the work environment in ways that ensure work and family interface and employee retention. Training programs can help employees deal with organizational politics and potential impact on work and nonwork problems. Managers should provide employees with the necessary support to sustain in-role and extra-role behavior in the political environment.Originality/valueTo the best of our knowledge, no prior studies have been carried out with this scope in the South Asian context.
Production of high‐titer transmission‐defective RNA virus‐based episomal vector using tangential flow filtration
Authors: Komatsu Yumiko , Kakuya Yoji , Tomonaga Keizo 
Published: July 2020

AbstractIn recent years, viral vector based in vivo gene delivery strategies have achieved a significant success in the treatment of genetic diseases. RNA virus‐based episomal vector lacking viral glycoprotein gene (ΔG‐REVec) is a nontransmissive gene delivery system that enables long‐term gene expression in a variety of cell types in vitro, yet in vivo gene delivery has not been successful due to the difficulty in producing high titer vector. The present study showed that tangential flow filtration (TFF) can be effectively employed to increase the titer of ΔG‐REVec. Concentration and diafiltration of ΔG‐REVec using TFF significantly increased its titer without loss of infectious activity. Importantly, intracranial administration of high titer vector enabled persistent transgene expression in rodent brain.
Safeguarding the House of the Dead: Configurations of Risk and Protection in the Urban Cemetery
Authors: Klaufus Christien 
Published: July 2020

AbstractIn Lima's pueblos jóvenes—the vast informal settlements that surround the city—migrants who settled there also founded graveyards. Cemeteries are a natural socio‐spatial extension of the settlements and houses that urbanites constructed with their own hands. Lima's peripheral cemeteries are permeable spaces which are often regarded as zones of risk and insecurity. Visitors, vendors and taxi drivers fear theft or assault. Grave looting and trafficking of burial land are common occurrences. Moreover, as a breeding ground for mosquitos, cemeteries are potential hotbeds of lethal diseases. Adding to such ‘measurable’ risks are the intangible risks and risk aversion connected with spiritual activities. This essay grapples with the conceptualizations of insecurity and risk in areas where the houses of the living and the dead converge, taking Lima's municipal district of Villa María del Triunfo and its Virgen de Lourdes cemetery as a case study. This intervention hence proposes a spatially inclusive conceptualization of security which embraces deathscapes as part of the inhabited urban space. Furthermore, based on the diverse ‘threats’ and ‘risks’ encountered in the cemetery space, I propose an intersectional approach sensitive to tangible and intangible insecurities and to the responses to avert these. With this approach I aim to unravel the various dimensions of (im)materiality in the security debate.
Walking with preschool‐aged children to explore their local wellbeing affordances
Authors: Ergler Christina R. , Freeman Claire , Guiney Tess 
Published: July 2020

AbstractAn increasingly well‐developed body of research uses neighbourhood walks to better understand primary school children's experiences of local environments, yet virtually nothing is known about preschool‐aged children's connections to their neighbourhoods. A reason for this omission is the commonly held view that preschool children lack competency to reflect on lived environments beyond playgrounds, kindergartens, and other confined settings that dominate early childhood. However, preliterate children walk around, use, and create intimate relationships with local environments as shown by 10 children aged 3–5 years from Dunedin in New Zealand during go‐along interviews. We asked each to walk us around their locale, explaining and pointing out favourite and less beloved places and activities. In this article, we advance two arguments: first that preschoolersareknowledgeable meaning makers of place; second that walking with them is a key step to understanding their life worlds and provides a way for preliterate and preverbal children to demonstrate knowledge and understanding of their spatial worlds, including as research participants. We challenge the idea that children of this age lack large‐scale spatial competency and understanding. Walking with them generated an in‐depth appreciation of their experiences of environments and revealed deep connections they had with their locales at varied scales. The work enables us to offer novel insights into spatial competency, sociospatial complexities, and the multiple dimensions of young children's wellbeing affordances in urban environments. Such insights are highly relevant for geographers, planners, and others who shape children's urban environments.
Meta‐analysis of immune‐related adverse events of immune checkpoint inhibitor therapy in cancer patients
Authors: Song Peng , Zhang Dingding , Cui Xiaoxia , Zhang Li 
Published: July 2020

AbstractBackgroundImmune checkpoint inhibitors (ICIs) have significant clinical efficacy in the treatment of non‐small cell lung cancer (NSCLC); however, the incidence of immune‐related adverse events (irAEs) of up to 50% has prevented their widespread use. With the increase in the use of ICIs alone or as combination therapy, clinicians are required to have a better understanding of irAEs and be able to manage them systematically. In this study, we aimed to assess the incidence of irAEs associated with ICIs.MethodsWe searched PubMed, Embase, and the Web of Science databases, and also included relevant literature references to widen our search. The relevant data with inclusion criteria were performed using RevMan 3.6.0 for meta‐analysis. We undertook a systematic literature search which included published data up to December 2019.ResultsOverall, 147 articles and 23 761 cancer patients with 11 different ICI treatment‐related (grade 1–5 and 3–5) irAEs were included in the study. There were 46 articles on pembrolizumab (6598 patients), 27 on nivolumab (3576 patients), 13 on atezolizumab (2787 patients), 12 on avelumab (3213 patients), 10 on durvalumab (1780 patients), 22 on ipilimumab (4067 patients), eight on tremelimumab (1158 patients), three on JS001 (223 patients), four on camrelizumab (SHR‐1210) (178 patients), one on sintilimab (96 patients), and one on cemiplimab (85 patients). Grade 1–5 irAEs were: cytotoxic T lymphocyte antigen 4 (CTLA‐4) (82.87%), programmed cell death 1 (PD‐1) (71.89%), and programmed cell death ligand‐1 (PD‐L1) (58.95%). Subgroup analysis was: Avelumab (44.53%), durvalumab (66.63%), pembrolizumab (67.25%), atezolizumab (68.77%), nivolumab (76.25%), Ipilimumab (82.18%), and tremelimumab (86.78%). Grade 3–5 irAEs were: CTLA‐4 (27.22%), PD‐1(17.29%), and PD‐L1(17.29%). Subgroup analysis was: Avelumab (5.86%), durvalumab (13.43%), atezolizumab (14.45%), nivolumab (15.72%), pembrolizumab (16.58%), tremelimumab (22.04%), and ipilimumab (28.27%).ConclusionsThis meta‐analysis confirmed that anti‐PD‐1 and anti‐PD‐L1 inhibitors had a lower incidence of irAEs compared with anti‐CTLA‐4 inhibitors.
Novel long non‐coding RNA LINC02323 promotes epithelial‐mesenchymal transition and metastasis via sponging miR‐1343‐3p in lung adenocarcinoma
Authors: Zhang Xiaoshi , Du Lutao , Han Jingyi , Li Xiaoli , Wang Hongchun , Zheng Guixi , Wang Yunshan , Yang Yongmei , Hu Ying , Wang Chuanxin 
Published: July 2020

AbstractBackgroundWe have previously developed a unique metastasis‐associated signature consisting of six long non‐coding RNAs (lncRNAs), including a novel lncRNA, namely LINC02323. In the present study, we aimed to investigate the underlying roles of LINC02323 in the migration, invasion and TGF‐β‐induced epithelial‐mesenchymal transition (EMT) of lung adenocarcinoma (LUAD) cells.MethodsThe distribution of LINC02323 was detected by the nuclear‐plasma separation experiment. Cell proliferation was assessd by MTT assay, and cell migration and invation were detected by transwell assays. EMT was detected by RT‐qPCR and western blotting. Interaction between miRNA and LINC02323 was predicted by starBase v2.0 and confirmed by the double luciferase reporting system.ResultsLINC02323 was distributed in the cytoplasm and nucleus. The overexpression or deletion of LINC02323 did not affect the proliferation of LUAD cells, while significantly affected the migration and invasion of LUAD cells. TGF‐β‐induced EMT process was significantly affected by both RNA interference (RNAi) and overexpression of LINC02323. The predicted results showed that there were binding sites between LINC02323 and miR‐1343‐3p. The expression of LINC02323 was found to be negatively correlated with miR‐1343‐3p in LUAD by analyzing The Cancer Genome Atlas (TCGA) database. The double luciferase reporting system, RT‐qPCR and western blotting experiments confirmed that LINC02323 could bind to miR‐1343‐3p, which bound to TGF‐β receptor 1 (TGFBR1). Inhibition of miR‐1343‐3p reversed LINC02323 silencing‐mediated suppression of migration, invasion and EMT.ConclusionsLINC02323 acts as a competing endogenous RNA (ceRNA), which sponged miR‐1343‐3p to upregulate the TGFBR1 expression and promote the EMT and metastasis in LUAD.Key pointsSignificant findings of the studyLINC02323 promotes epithelial‐mesenchymal transition and metastasis via sponging miR‐1343‐3p in lung adenocarcinoma.What this study addsLINC02323 is a key molecule in the process of invasion and metastasis of LUAD and might be used as a potential target in metastatic cancer.