bluuebunny/crossref_metadata_2025_split huggingface dataset:
Civic engagement through restaurant review page in Facebook: a structural equation modelling approach
Authors: Satter A.K.M. Zaidi , Mahmud Arif , Rahman Ashikur , Mahmud Imran , Akter Rozina 
Published: January 2021

Purpose
Existing literature affirms that almost half of the young generation has remained unemployed worldwide. On the contrary civic engagement can be a powerful tool in combating this problem. However, the influencing factors that encourage the active participation of young adults yet to be identified. The purpose of this paper is to fill the research gap by creating and validating a research model by including three motives social presence commitment and online offline civic engagement.

Design/methodology/approach
The study took a quantitative approach to conduct a cross-sectional study. In total, 214 data were collected from the member of a Facebook group of Bangladesh named Foodbank, a restaurant review page through the online questionnaire. After that structural equation modelling techniques have been used to analyse the data, test the model validity and hypothesis.

Findings
The result shows that both commitment and social presence influence offline and online civic engagement. Excitement motives have a higher effect than information and convenience motive. Besides, 8 out of 10 hypotheses have shown significant results, with only the convenience motive not having any positive influence and effect on social presence and commitment.

Practical implications
Almost 47.6 out of 158.5 million are young people who are incapable of contributing fully to national development due to a lack of civic engagement. The outcome of this study will be useful for the Government of Bangladesh, as well as for non-governmental organisations and decision-making authorities to form assessments and develop policy on how to engage the young generation in civic activities to achieve further socio-economic development in the country.

Originality/value
This study contributes to existing literature with newly developed relationships between social presence-civic engagement and commitment-civic engagement. These unique relationships have been empirically tested and resulted insignificant. The study also identifies that it is vital to engage young people more in social works and increase their participation in offline and online activities.
A seller perspective on economic and non-economic satisfaction as precursors to formalisation, specific investments and dependence in business relationships
Authors: Høgevold Nils M. , Svensson Gøran , Mpinganjira Mercy 
Published: January 2021

PurposeSeen from the seller's point of view, this study examines economic and non-economic satisfaction as distinct conceptual variables, and tests how the constructs relate to each other and to the business transactional cost variables of formalisation, specific investments and dependence.Design/methodology/approachData was collected from 213 key informants from Norwegian companies involved in business-to-business marketing. Structural equation modelling was used to test the posited hypotheses.FindingsThe findings show that sellers' economic satisfaction exerts a positive influence on non-economic satisfaction and on formalisation, while its posited influence on specific investments was not found to be significant. Formalisation was, however, not significantly influenced by seller non-economic satisfaction. Specific investment was positively influenced by seller non-economic satisfaction. The influence of formalisation on specific investments and dependence was significant. Specific investments were also found to be positively influenced by dependence.Research limitations/implicationsThe study reveals the importance of assessing both economic and non-economic satisfaction in trying to understand sellers' behaviour in business-to-business markets.Practical implicationsThe findings show the need for managers to ensure economic satisfaction, as its affects non-economic satisfaction.Originality/valueThis study contributes to a better understanding of satisfaction in business-to-business exchange relationships and its relationship with transactional cost constructs based on a seller's perspective.
The role of information systems and knowledge codification for service provision strategies
Authors: Walsh John N. , O'Brien Jamie 
Published: January 2021

PurposeWhile service scholars see modularisation as balancing the efficiency of standardisation with the value added through customisation the relationships between these concepts are under-theorised. In addition, although information and communication technologies can facilitate all three service strategies, the degree to which they codify service knowledge is not explicitly considered in the extant literature. The purpose of this paper is to develop and validate a model that examines service strategy trajectories by specifically considering the ICTs used and the degree of knowledge codification employed.Design/methodology/approachThis study draws on three qualitative case studies of service departments of firms involved in cardiovascular applications, orthopaedic, spinal and neuroscience product development and information technology support. Data collection involved semi-structured interviews, document analysis and non-participant observation.FindingsFindings show that ICTs were increasingly used to codify both standardised and customised services, though in different ways. For standardised services ICTs codified the service process, making them even more rigid. Due to the dynamic nature of customised services, drawing on experts' tacit knowledge, ICTs codified the possessors of knowledge rather than the service process they undertook. This study also identified a duality between the tacit development of customised services and modular service codification.Research limitations/implicationsThe model is validated using case studies from three companies in the medical and information technology sectors limiting its generalisability.Practical implicationsThe importance of considering the degree of tacitness or explicitness of service knowledge is important for service codification. The paper provides managers with empirical examples of how ICTs are used to support all three strategies, allows them to identify their current position and indicates possible future trajectories.Originality/valueThe papers main contribution is the development of a model that integrates the literature on service strategies with knowledge management strategies to classify service standardisation, customisation and modularisation in terms of both service orientation and degree of ICT codification.
Helping coworkers only when I have more? Integrating social comparison, attribution and conservation of resources theories
Authors: Chou Shih Yung , Barron Katelin , Ramser Charles 
Published: January 2021

Purpose
Drawing upon conservation of resources (COR) and attribution theories, prior research in helping behavior has mainly focused on an independent view of the helper’s personal resources. This perspective, however, falls short of capturing the comparative nature of personal resources and attributions in a helping context. The purpose of this paper is, therefore, to develop a theoretical model that helps predict employees’ decisions to help or not to help.

Design/methodology/approach
A theoretical model was developed by integrating social comparison, COR and attribution theories.

Findings
The theoretical model proposes the following. First, when employees perceive that they have fewer personal resources than a coworker who needs help, they are less likely to help. Second, when employees perceive that they have more personal resources than a coworker who needs help, they make causal attributions as to why the coworker failed to deploy personal resources. Finally, when employees have more personal resources than a coworker who needs help, they are more likely to help if they make situational, unstable and uncontrollable attributions to the coworker’s failure to deploy personal resources.

Originality/value
This paper extends the literature by offering a theoretical model that emphasizes comparisons and attributions of personal resources in a helping context. Additionally, this paper offers several managerial implications that help managers manage helping behavior effectively.
Floating down the river: Vietnamese community-led social innovation
Authors: Maher Michael , Hazenberg Richard 
Published: January 2021

Purpose
This paper aims to explore the barriers facing social enterprise-led community energy projects in Vietnam, to understand the barriers and enablers of social innovation in transitioning economies. In doing so, this paper seeks to identify whether the Vietnamese ecosystem is conducive to sustainable community energy projects and social innovation more broadly.

Design/methodology/approach
This paper used a qualitative, case study-based methodology to explore institutional barriers to social innovation in the context of three community-led energy projects in Northern Vietnam. Interviews and focus groups were undertaken with 17 individual stakeholders within or engaged with the three case studies. The qualitative data used was analysed using constant comparative method, a method of analysis based in grounded theory that allows for iterative analysis of the data gathered.

Findings
Social enterprises and their beneficiaries are reliant on their ability to network, but with the Vietnamese government actively involved in the markets, there are significant barriers standing in the way of these networking opportunities. Communities with little political capital are alienated from state institutions, whereas enterprises that offer alternative solutions to governmental priorities are seen as competitors by political agents.

Originality/value
Applying Granovetter’s theory of “embeddedness” and Herold et al.’s (2019) and Popov et al.’s (2016) theories on institutional centrality and power distribution, this paper seeks to add to our understanding on the impact large, hegemonic institutions can have on the networking ability of social enterprises and their beneficiaries.
The questionnaire method in systems research: an overview of sample sizes, response rates and statistical approaches utilized in studies
Authors: Lund Brady 
Published: January 2021

Purpose
The purpose of this study is to identify typical sample sizes and response rates in questionnaire research studies within the discipline of information systems, as well as the top statistical analyses utilized for questionnaire data in these studies.

Design/methodology/approach
A total of 842 articles published between the years of 2000 and 2019 were identified that met the criteria of using a questionnaire as the research method. These articles were analyzed based on the sample size, response rate (if applicable) and statistical analysis methods used.

Findings
The typical questionnaire study received between 136 (first quartile) and 374 (third quartile) respondents, with a median number of 217. Typical response rate ranged between 16.5% and 50.0%, with a median of 27.8%. it was found that articles published in journals included in the Social Science Citation Index had significantly larger numbers of respondents than those not included in the index, though no difference was found for response rate. Studies that utilized more advanced statistical methods (regression analysis, structural equation modeling) were found to have significantly larger sample sizes than those that utilized only descriptive statistics or t-tests. Structural equation modeling, including the partial least squares approach, was used in the largest number of studies.

Originality/value
This study is the first to broadly examine the typical sample size, response rates and methods of statistical analysis used in information systems questionnaire studies. The findings of this study may be useful for systems researchers in developing appropriate procedures for questionnaire-based research.
Are belowground clonal traits good predictors of ecosystem functioning in temperate grasslands?
Authors: Klimešová Jitka , Mudrák Ondřej , Martínková Jana , Lisner Aleš , Lepš Jan , Filartiga Arinawa Liz , Ottaviani Gianluigi 
Published: January 2021

Abstract

In herbaceous communities which host many perennial species, belowground clonal organs and traits remain largely overlooked in ecosystem functioning studies. However, the belowground compartment is expected to play a key role as the greatest proportion of biomass is allocated belowground. Our main goal was to test whether including underexplored clonal traits (in tandem with widely used aboveground traits) improves the ability to predict biomass production and soil carbon in temperate grasslands. We examined the relationships between five plant functional traits (canopy height, specific leaf area [SLA], lateral spread, multiplication rate, persistence of rhizome) and biomass allocation (aboveground, roots, rhizomes) and soil organic carbon (SOC).

We studied 52 grassland plots clustered in two Central European regions differing by management intensity. We assessed biomass allocated aboveground and belowground (into roots and rhizomes separately). SOC was measured from averaging five soil cores at each plot. Trait community means were calculated for each trait from species compositions using databases.

The most important traits in predicting biomass allocation were canopy height and persistence of rhizome. Results, however, differed for the two regions implying context dependency of the relationships. Persistence of rhizome and canopy height emerged as traits largely affecting ecosystem functioning at the less intensively managed grasslands—likely because of their links to biomass production and plant economics spectrum. At the more intensively managed grasslands, canopy height and SLA were negatively correlated with root biomass, with persistence of rhizome playing a (lesser) role. We found no significant predictors for SOC.

Synthesis. This study is the first attempt to integrate belowground clonal and aboveground traits to predict biomass allocation and soil carbon. Findings indicate that the ability of plant functional traits in predicting ecosystem functioning is highly context dependent, varying greatly even within the same community type. Only SLA and, to a lesser extent, persistence of rhizome consistently predicted root biomass in the two regions. We call for a broader implementation of the whole‐plant multifunctional approach applied here, ideally extending to other open ecosystems.

A free Plain Language Summary can be found within the Supporting Information of this article.
Life after recovery: Increased resolution of forest resilience assessment sheds new light on post‐drought compensatory growth and recovery dynamics
Authors: Ovenden Thomas S. , Perks Mike P. , Clarke Toni‐Kim , Mencuccini Maurizio , Jump Alistair S. 
Published: January 2021

Abstract

Understanding the impacts of extreme drought on forest productivity requires a comprehensive assessment of tree and forest resilience. However, current approaches to quantifying resilience limit our understanding of forest response dynamics, recovery trajectories and drought legacies by constraining the temporal scale and resolution of assessment.

We compared individual tree growth histories with growth forecasted using dynamic regression at an annual resolution, allowing drought impact and individual tree and stand level recovery dynamics to be assessed relative to a scenario where no drought occurred. The novel application of this approach allowed us to quantify the cumulative impact of drought legacy on radial growth at multiple stem heights at different stand densities.

We show that the choice of pre‐ and post‐drought periods over which resilience is assessed can lead to systematic bias in both estimates and interpretations of resilience indices. In contrast, measuring growth resilience annually revealed clear nonlinearities in tree and stand recovery trajectories. Furthermore, we demonstrate that the influence of pre‐drought attributes such as tree size, growth rates and stand densities on growth resilience were only detectable at certain stages of recovery. Importantly, we show that the legacy of drought on tree growth can become positive for some individuals, extending up to 9 years after the event such that post‐recovery growth can result in the reclamation of some lost tree and stand basal area.

Synthesis. We demonstrate the importance of increasing the temporal scale and resolution of forest resilience assessment in order to understand both patterns and drivers of drought recovery. We highlight the shortcomings of collapsing growth response into a single average value and show how drought legacy can persist into a post‐recovery phase, even positively impacting the growth of some trees. If unaccounted for, this post‐recovery growth phase can lead to an underestimation of resilience and an overestimation of above‐ground losses in productivity, highlighting the importance of considering longer‐term drought legacies and compensatory growth on basal area.
Colonization and bioweathering of monazite by Aspergillus niger: solubilization and precipitation of rare earth elements
Authors: Kang Xia , Csetenyi Laszlo , Gadd Geoffrey Michael 
Published: January 2021

SummaryGeoactive fungi play a significant role in bioweathering of rock and mineral substrates. Monazite is a phosphate mineral containing the rare earth elements (REE) cerium, lanthanum and neodymium. Little is known about geomicrobial transformations of REE‐bearing minerals which are also relevant to REE biorecovery from terrestrial and extra‐terrestrial reserves. The geoactive soil fungus Aspergillus niger colonized monazite in solid and liquid growth media without any apparent growth inhibition. In a glucose‐minerals salts medium, monazite enhanced growth and mycelium extensively covered rock particle surfaces, probably due to the provision of phosphate and essential trace metals. Teeth‐like and pagoda‐like etching patterns indicated monazite dissolution, with extensive precipitation of secondary oxalate minerals. Biomechanical forces ensued causing aggressive bioweathering effects by tunnelling, penetration and splitting of the ore particles. High amounts of oxalic acid (~46 mM) and moderate amounts of citric acid (~5 mM) were produced in liquid media containing 2% (wt./vol.) monazite, and REE and phosphate were released. Correlation analysis suggested that citric acid was more effective than oxalic acid in REE mobilization, although the higher concentration of oxalic acid also implied complexant activity, as well as the prime role in REE‐oxalate precipitation.
The effects of foreign aid, foreign direct investment and domestic investment on economic growth in African countries: Nonlinearities and complementarities
Authors: Younsi Moheddine , Bechtini Marwa , Khemili Hasna 
Published: January 2021

AbstractThis paper examines the relationship between foreign aid (AID), foreign direct investment (FDI) and domestic investment (DI) and its effects on economic growth in 41 African countries. Annual panel data from 1990 to 2016 are examined using fixed‐effects (FE) and system‐GMM estimators. We test the existence of nonlinearities and complementarities in the relationship between AID–FDI, AID–DI, FDI–DI, and AID–FDI–DI. Empirical results confirm the existence of a nonlinear relationship between AID, FDI, DI, and economic growth. Besides, the results show that AID and FDI have a significant positive complementing effect on economic growth. It is shown also that FDI complements DI, while the coupled effect of AID and DI remains weak in catalyzing growth. Moreover, the results indicate that the complementarity between AID–FDI–DI positively influence economic growth, revealing that AID and FDI work as a complement factor to DI and enhance its effectiveness in promoting economic growth. These insights have important policy implications. Policy‐makers in African countries are well advised to implement concrete policy measures suitable for building on the growth momentum created by foreign capital inflows, like FDI, AID as well as remittance.
Integration of dsRNA against host immune response genes augments the virulence of transgenic Metarhizium robertsii strains in insect pest species
Authors: Wang Yulong , Xie Xiangyun , Qin Li , Yu Deshui , Wang Zhangxun , Huang Bo 
Published: January 2021

SummaryThe slow lethality of fungal biopesticides to insects restrains their widespread application as a strategy of pest control. In this study, unary, binary and ternary transgenic Metarhizium robertsii were created by integrating genes that encode the scorpion neurotoxin BjαIT, the cuticle‐degrading protease Pr1A, and a double‐stranded RNA (dsRNA) that targets host gnbp3, individually or collectively under a constitutive promoter to enhance virulence. Compared with the parental wild type, all unary transgenic strains had increased virulence against four insect species, Tenebrio molitor, Locusta migratoria, Plutella xylostella and Galleria mellonella, whereas the binary transgenic strain expressing both pr1A and BjαIT had increased virulence to T. molitor and L. migratoria, with no change in virulence against P. xylostella and G. mellonella. Importantly, all ternary transgenic strains simultaneously expressing pr1A, BjαIT, and the dsRNA specific to host gnbp3 exhibited the highest increase in insect‐specific virulence. This finding highlights a novel strategy for genetic engineering of dsRNAs that target genes associated with the host immune response alongside virulence genes to maximize fungal virulence and lethality against insect pests.
maxnodf: An R package for fair and fast comparisons of nestedness between networks
Authors: Hoeppke Christoph , Simmons Benno I. 
Published: January 2021

Abstract

Nestedness is a widespread pattern in mutualistic networks that has high ecological and evolutionary importance due to its role in enhancing species persistence and community stability. Nestedness measures tend to be correlated with fundamental properties of networks, such as size and connectance, and so nestedness values must be normalised to enable fair comparisons between different ecological communities. Current approaches, such as using null‐corrected nestedness values and z‐scores, suffer from extensive statistical issues. Thus a new approach called NODFc was recently proposed, where nestedness is expressed relative to network size, connectance and the maximum nestedness that could be achieved in a particular network. While this approach is demonstrably effective in overcoming the issues of collinearity with basic network properties, it is computationally intensive to calculate, and current approaches are too slow to be practical for many types of analysis, or for analysing large networks.

We developed three highly optimised algorithms, based on greedy, hill climbing and simulated annealing approaches, for calculation of NODFc, spread along a speed‐quality continuum. Users thus have the choice between a fast algorithm with a less accurate estimate, a slower algorithm with a more accurate estimate and an intermediate option.

We outline the package and its implementation, as well as provide comparative performance benchmarking and two example analyses. We show that maxnodf enables speed increases of hundreds of times faster than existing approaches, with large networks seeing the biggest improvements. For example, for a large network with 3,000 links, computation time was reduced from 50 min using the fastest existing algorithm to 11 s using maxnodf.

maxnodf makes correctly normalised nestedness measures feasible for complex analyses of even large networks. Analyses that would previously take weeks to complete can now be finished in hours or even seconds. Given evidence that correctly normalising nestedness values can significantly change the conclusions of ecological studies, we believe this package will usher in necessary widespread use of appropriate comparative nestedness statistics.