bluuebunny/crossref_metadata_2025_split huggingface dataset:
Endocardium-to-coronary artery differentiation during heart development and regeneration involves sequential roles of Bmp2 and Cxcl12/Cxcr4
Authors: D’Amato Gaetano , Phansalkar Ragini , Naftaly Jeffrey A. , Rios Coronado Pamela E. , Cowley Dale O. , Quinn Kelsey E. , Sharma Bikram , Caron Kathleen M. , Vigilante Alessandra , Red-Horse Kristy 
Published: October 2021

ABSTRACTRegenerating coronary blood vessels has the potential to ameliorate ischemic heart disease, yet there is currently no method of stimulating clinically effective cardiac angiogenesisis. Endocardial cells— a particularly plastic cell type during development—line the heart lumen and are natural coronary vessel progenitors. Their intrinsic angiogenic potential is lost in adults, but studying the endocardial- to-coronary developmental pathway could identify methods of re-instating this process in diseased hearts. Here, we use a combination of mouse genetics and scRNAseq of lineage-traced endothelial cells to identify novel regulators of endocardial angiogenesis and precisely assess the role of Cxcl12/Cxcr4 signaling. Time-specific lineage tracing demonstrated that endocardial cells differentiated earlier than previously thought, largely at mid-gestation. A new mouse line reporting the activity of Cxcr4 revealed that, despite widespread Cxcl12 and Cxcr4 expression, only a small subset of these coronary endothelial cells activated the receptor, which were mostly in arteries. In accordance with these two findings, Cxcr4 deletion in the endocardial lineage only affected artery formation and only when deleted before mid-gestation. Integrating scRNAseq data of coronary endothelial cells from the endocardial lineage at both mid- and late-gestation identified a transitioning population that was specific to the earlier timepoint that specifically expressed Bmp2. Recombinant Bmp2 stimulated endocardial angiogenesis in an in vitro explant assay and in neonatal mouse hearts upon myocardial infarction. Our data shed light on how understanding the molecular mechanisms underlying endocardial-to-coronary transitions can identify new potential therapeutic targets that could promote revascularization of the injured heart.
Network analysis of England’s single parent household COVID-19 control policy impact: a proof-of-concept study
Authors: Edelman N.L. , Simon P. , Cassell J.A. , Kiss I.Z. 
Published: October 2021

SummaryLockdowns have been a key infection control measure for many countries during the COVID-19 pandemic. In England’s first lockdown, children of single parent households (SPHs) were permitted to move between parental homes. By the second lockdown, SPH support bubbles between households were also permitted, enabling larger within-household networks. We investigated the combined impact of these approaches on household transmission dynamics, to inform policymaking for control and support mechanisms in a respiratory pandemic context.This network modelling study applied percolation theory to a base model of SPHs constructed with population survey estimates of SPH family size. To explore putative impact, varying estimates were applied regarding extent of bubbling and proportion of Different-parentage SPHs (DSPHs) (in which children do not share both the same parents). Results indicate that the formation of giant components (in which Covid-19 household transmission accelerates) are more contingent on DSPHs than on formation of bubbles between SPHs; and that bubbling with another SPH will accelerate giant component formation where one or both are DSPHs. Public health guidance should include supportive measures that mitigate the increased transmission risk afforded by support bubbling among DSPHs. Future network, mathematical and epidemiological studies should examine both independent and combined impact of policies.
Metacommunity stability and persistence for predation turnoff in selective patches
Authors: Bagchi Dweepabiswa , Arumugam Ramesh , Chandrasekar V K , Senthilkumar D V 
Published: October 2021

AbstractPredation as an important trophic interaction of ecological communities controls the large-scale patterns of species distribution, population abundance and community structure. Numerous studies address that predation can mediate diversity and regulate the ecological community and food web stability through changes in the behaviour, morphology, development, and abundance of prey. Since predation has large effects on persistence and diversity, the local loss or removal of predation in a community can trigger a cascade of extinctions. In ecological theory, the effect of predation removal has been well studied in foodwebs, but it remains unclear in the case of a spatially distributed community connected by dispersal. In this study, the interaction between local and spatial processes is taken into account, we present how a predation turnoff in selective patches affects the stability and persistence of a metacommunity. Using a simple predator-prey metacommunity with a diffusive dispersal, we show the impact of predation on synchronized, asynchronized and source-sink dynamics. Our results reveal that predation turnoff in very few patches alters a perfectly synchronized oscillatory state into multicluster states consisting of various patterns. In a source-sink behaviour, predation turnoff in a source patch reduces the number of sink patches and changes the clusters. In general, predation turnoff in a finite number of patches increases the number of clusters through asynchronized (inhomogeneous) states, whereas predation turnoff in a larger number of patches can lead to the complete extinction of predators. Typically, there exists a critical number of patches below which the predation turnoff results in asynchronized states and above that predation turnoff leads to a synchronized state in prey population with complete extinction of predators. Further, our results identify the network configurations that exhibit a unique number of clusters. Moreover, prey density from the patches where predation is absent goes to a saturating state near the carrying capacity. Thus, this study stresses that predation turnoff in selective patches acts as a stabilizing mechanism that can promote metacommunity persistence.
Differences between LIS and non-LIS undergraduates’ conceptions of smart libraries: a drawing analysis approach
Authors: Tu Yun-Fang , Hwang Gwo-Jen , Chen Shu-Yen , Lai Chiulin , Chen Chuan-Miao 
Published: October 2021

Purpose
This study aims to compare similarities and differences in library and information science (LIS) and non-LIS undergraduates’ conceptions and perceptions of smart libraries via drawing analysis.

Design/methodology/approach
In this study, a total of 156 undergraduate students described their perceptions of smart libraries as drawings and textual descriptions. A modified coding scheme with 8 categories and 51 subcategories was used to analyse the undergraduate students’ drawings.

Findings
Most of the undergraduate students’ conceptions of smart libraries still involve self-checkout and learning/reading, focusing on information appliances, technical services, activities and objects. The differences are that the LIS undergraduates’ drawings showed smart libraries with robots, interactive book borrowing with technology tools, intelligent services, location-aware services or mobile applications, whereas non-LIS undergraduates presented smart libraries as readers (learners), other activities and no smart technology services. LIS undergraduates focused on providing patron services with technologies. Non-LIS undergraduates were more likely to draw a complex space with immediate access to books or digital resources, quiet reading and the freedom to engage in library activities.

Originality/value
The results provide a baseline for future research on the topic and provide preliminary evidence of using the methods to discern LIS and non-LIS undergraduates’ conceptions of smart libraries.
An evaluation of force term in the lattice Boltzmann method for mixed convection with large Richardson numbers
Authors: Naghavi Sayed Mahdi , Sheikhzadeh Ghanbar Ali 
Published: October 2021

Purpose
The purpose of this study is the identification of the best method to apply the body force in the lattice Boltzmann method (LBM). In the simulation of mixed convection, especially for large Richardson number flows in a square cavity.

Design/methodology/approach
First, three methods for applying the body force were compared to each other in the LBM. Then, an LBM-based code was written in the FORTRAN language using these three methods. Next, that code was used to simulate natural/mixed convection in a two-dimensional cavity to evaluate the methods for applying the body force. Finally, the optimum way for applying the body force was used for the simulation of free convection heat transfer in a concentric annulus with Rayleigh number in a range of 1,000 to 50,000, and mixed convection heat transfer in a concentric annulus with Rayleigh number in a range of 10,000 to 50,000 and Reynolds number in a range of 100 to 400.

Findings
Mixed convection heat transfer was simulated in a two-dimensional cavity with Richardson number in a range of 0.0001 to 100. The results which were obtained in low Richardson number flows have shown good adaptation to the available data. However, the results of large Richardson number flows, for example, Ri = 100, have shown a significant difference to the available data. Investigations revealed that this difference was due to the method of applying the body force. Therefore, the choice of the best way to apply the body force was investigated. Finally, for the large Richardson number flows, the best method to apply the body force has been identified among the several techniques.

Originality/value
To the authors’ knowledge, the effects of methods for applying the body force were not investigated in the cavities mixed convection, even though there are numerous investigations conducted on mixed convection with the LBM. In this study, the effects of techniques to apply the body force were investigated in large Richardson number flows. Finally, the best method to apply the body force is distinguished between several techniques for the large Richardson number mixed convection flows.
Did the STOCK Act impact the performance, risk and flow of hedge funds?
Authors: Samarbakhsh Laleh , Shah Meet 
Published: October 2021

PurposeThis research aims to examine hedge funds’ performance, risk and flow before and after the implementation of the Stop Trading on Congressional Knowledge (STOCK) Act.Design/methodology/approachThis paper includes the use of different factor models to highlight the performance and risk of hedge funds before and after the implementation of the STOCK Act. Hedge fund holdings are retrieved from Thomson Reuters Lipper Hedge Fund Database (TASS).FindingsThis study finds significant differences before and after the implementation of the STOCK Act. The results for the entire sample period indicate that hedge funds suffered lower-alpha, standard deviation and idiosyncratic risk after the implementation of the STOCK Act.Originality/valueThe paper’s originality and value lie in addressing the relationship gap between the STOCK Act and hedge fund performance.
Barriers to implementing digitalization in the Indian construction industry
Authors: Bajpai Avirag , Misra Subhas C. 
Published: October 2021

PurposeThis research paper aims to analyze the critical barriers to implementing digitalization in the Indian construction industry as Indian construction companies are lagging in the implementation of digital technologies in the work environment.Design/methodology/approachIn this research paper, a qualitative research approach is adopted, and multiple detailed interviews are conducted with industry and academic experts. Further, multi-criteria decision-making (MCDM) techniques are used to finalize the prioritization among various alternatives. The fuzzy-decision-making trial and evaluation laboratory (Fuzzy-DEMATEL) and interpretive structural modeling (ISM) techniques are employed to find the exact relationship among the identified alternatives.FindingsThis study identifies 14 critical barriers from an extensive literature review and multiple interviews with industry professionals, and further driving and critical barriers are identified.Research limitations/implicationsIn this research paper, an exploratory study with a limited number of respondents from a large Indian construction company is carried out. Further, a detailed longitudinal analysis can be done to assess the subjectivity of the participants with more advanced statistical tools. However, this research discusses several points pertaining to the implementation of digitalization in the construction industry. The research further identifies the critical barriers to digitalization in the Indian construction industry.Practical implicationsThe finding of the study has two-pronged implications. First, it provides a road-map to the construction industry by highlighting the engagement of top management as the key focus area for successful digitalization. Second, the finding also shows similarity of the digitalization process to the adoption of process improvement techniques like lean and total quality management (TQM), wherein the top management plays a crucial role in ushering in the implementation of a disruptive change.Originality/valueThe research is unique in two ways. First, this is one of the very few attempts to understand digitalization in the Indian context. Second, the research also demonstrates that the combination of fuzzy DEMATEL and ISM techniques can be successfully employed in the emerging field of construction digitalization research.
How do consumers perceive mobile self-checkout in fashion retail stores?
Authors: Liang Yuli , Lee Seung-Hee , Workman Jane E. 
Published: October 2021

PurposeMobile self-checkout refers to scanning products using a mobile device inside a brick-and-mortar store and completing the checkout process on mobile devices. Even though mobile self-checkout has been used in other industries for several years, it is a new application in the fashion industry and only limited numbers of retailers have implemented mobile self-checkout in their stores. The purpose of this study is to understand consumers' acceptance of mobile self-checkout in fashion retail stores by analyzing determinants of using a new system.Design/methodology/approachPart of the Unified Theory of Acceptance and Use of Technology (UTAUT) was used as a theoretical framework. Openness to experience, variety seeking and adventure shopping were added to the model. Empirical data (with 229 valid responses) were collected from the top 20 metropolitan areas in the US via Qualtrics Panel services. Exploratory factor analysis, confirmatory factor analysis, structural equation modeling and multi-group moderation were used to estimate construct validity and test the proposed hypotheses and theoretical framework.FindingsThe results indicated that consumers' intentions toward using mobile self-checkout in fashion retail stores were predicted by facilitating conditions, social influence and openness to experience. Moreover, consumers' previous experience of using mobile self-checkout in fashion retail stores moderated the path from facilitating conditions to behavioral intention and the path from social influence to behavioral intention. In addition, different genders and smartphone usage frequency did not vary significantly on the model paths.Practical implicationsThe findings show how fashion retailers can understand consumers' preference and their willingness to use mobile self-checkout in fashion retail stores. Moreover, the authors addressed ways for fashion retailers to promote mobile self-checkout in the future.Originality/valueAs a new technology in the fashion industry, literature is deficient concerning consumers' intention to adopt mobile self-checkout. This research provided suggestions for fashion retailers about adopting and improving acceptance of mobile self-checkout. Results will lead to theoretical and managerial implications for future technology development.
Influence of social structures on transnational migration duration: the case of Vietnamese contract workers returning from Taiwan
Authors: Phuong Nguyen Quynh , Venkatesh Sundar 
Published: October 2021

PurposeLimited previous studies about Vietnamese returned migrant workers reviewed that a relatively high rate of migrants returned home before their contract ended. This paper aims to explore how the decisions to return were made under social lenses.Design/methodology/approachThis paper analyses data obtained through in-depth interviews of contract workers who had worked in Taiwan with a focus on Phu Tho province in Vietnam.FindingsThe authors followed O’Reilly’s (2012) adaption of Practice theory in migration research to examine a group of Vietnamese labour migrants returning from Taiwan. Under this theory, external and internal structures are the two divisions of the social environment. The authors identified external structures that might enable or constraint migrant’s mobility. When negotiating internal structures, Vietnamese women might end their contract early in response to family obligations.Originality/valueThe findings provide insights into how women make their decisions when to return, which may contribute to a better understanding of how to assist women engaged in transnational labour migration.
The cost of ignorance: reputational mark-up in the market for Tuscan red wines
Authors: Pedersen Maja Uhre , Sharp Paul 
Published: October 2021

Purpose
The purpose of this paper is to provide an empirical investigation of the idea that imperfectly informed consumers use simple signals to identify the characteristics of wine, for example, the geographical denomination. The reputation of a denomination will thus be an important guide for consumers when assessing individual wines.

Design/methodology/approach
The price–quality relationship is studied in a fairly homogenous geographical area where a large number of wine types is present. This is done by using a simple ordinary least squares (OLS) analysis on a database of more than 2,000 different red wines produced in a period of just four years in only one Italian region.

Findings
The results show that some denominations have a lower average quality score and that price differentials between denominations are linked to differences in average quality, although consumers tend to exaggerate the quality gap between prestigious denominations and others.

Research limitations/implications
A producer in a prestigious denomination benefits from a substantial mark-up relative to an equally good producer from another denomination. Furthermore, denomination neutral wines have a stronger price–quality relationship than denomination specific wines.

Practical implications
Consumers should not be misled by what is on the bottle, but should rather consult wine guides to become better informed before purchasing.

Social implications
The fact that quality and sensory characteristics often play a minor role in determining the price of a commodity is not immediately compatible with the postulate that consumers are well informed.

Originality/value
Unlike previous work, this paper investigates a limited area (Tuscany) and only red wines, thus making it possible implicitly to control for many other factors which might otherwise confound the price–quality relationship.
The willing successor: an exploration of grit and situational cues in family firms
Authors: Medina-Craven Michele N. , Marett Emily Garrigues , Davis Sara E. 
Published: October 2021

PurposeThis conceptual paper explores how the activation of the individual-level trait grit can explain variance in successor willingness to take over leadership of the family firm.Design/methodology/approachDrawing from trait activation and situation strength theories, the authors develop a framework to examine the interactions of the two dimensions of grit (passion and perseverance) on the successor's willingness to take control of the family firm.FindingsThe authors identify how the grit dimensions would interact with the situational cues present during the succession process to predict the successor's willingness to take control of the family firm and offer testable propositions to guide future empirical work.Originality/valueThe authors help to address the growing need for additional microfoundational family firm research by drawing insights from organizational behavior theories and personality research and apply them to the family firm succession process.
Gaussian quantum particle swarm optimization-based wide-area power system stabilizer for damping inter-area oscillations
Authors: Kondattu Mony Sreedivya , Peter Aruna Jeyanthy , Durairaj Devaraj 
Published: October 2021

Purpose
The extensive increase in power demand has challenged the ability of power systems to deal with small-signal oscillations such as inter-area oscillations, which occur under unseen operating conditions. A wide-area measurement system with a phasor measurement unit (PMU) in the power network enhances the observability of the power grid under a wide range of operating conditions. This paper aims to propose a wide-area power system stabilizer (WAPSS) based on Gaussian quantum particle swarm optimization (GQPSO) using the wide-area signals from a PMU to handle the inter-area oscillations in the system with a higher degree of controllability.

Design/methodology/approach
In the design of the wide-area stabilizer, a dead band is introduced to mitigate the influence of ambient signal frequency fluctuations. The location and the input signal of the wide-area stabilizer are selected using the participation factor and controllability index calculations. An improved particle swarm optimization (PSO) technique, namely, GQPSO, is used to optimize the variables of the WAPSS to move the unstable inter-area modes to a stable region in the s-plane, thereby improving the overall system stability.

Findings
The proposed GQPSO-based WAPSS is compared with the PSO-based WAPSS, genetic algorithm-based WAPSS and power system stabilizer. Eigenvalue analysis, time-domain simulation responses and performance index analysis are used to assess performance. The various evaluation techniques show that GQPSO WAPSS has a consistently good performance, with a higher damping ratio, faster convergence with fewer oscillations and a minimum error in the performance index analysis, indicating a more stable system with effective oscillation damping.

Originality/value
This paper proposes an optimally tuned design for the WAPSS with a wide-area input along with a dead-band structure for damping the inter-area oscillations. Tie line power is used as the input to the WAPSS and optimal tuning of the WAPSS is performed using an improved PSO algorithm, known as Gaussian quantum PSO.
What drive gender gap in financial inclusion? Evidence from Cameroon
Authors: Ndoya Hermann Hegueu , Tsala Charly Ondobo 
Published: October 2021

AbstractThis article analyses the drivers of the gender gap in financial inclusion in Cameroon, using Finscope 2017 data and Fairlie's decomposition method. We analyse six distinct financial inclusion variables captured by access to and use of financial inclusion products and services. The results of the decomposition show that there is a gap in all indicators of access to and use of financial products and services in favour of men. The results also show that the largest contributor to the gender gap in access to financial products and services is income, with a contribution of more than 50%. The largest contributor to the gender gap in the use of financial products and services is education, with an average contribution of more than 35%. Based on these results, policy‐makers in Cameroon must work towards an equalization of access to education between men and women, in order to promote greater economic participation of women as well as more inclusive development.