77 research outputs found

    Functional Characteristics Of Banking Websites And Customer Loyalty: The Mediating Role Of Online Trust

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    The aim of this paper is to analyze the relationship between the websites’ functional characteristics, online trust and customer loyalty in banking sector. Our research required the testing of twelve hypotheses with a sample of 286 Tunisian banks’ customers. The data were analyzed by structural equations modeling using the AMOS software. The results of our research highlighted the significant and positive effect of the websites’ functional characteristics on online trust among customers, which in turn has been proven to be a key driver of their loyalty to their banks. Our study pointed also the mediation role played by online trust between websites’ functional characteristics and customer loyalty

    Focusing The Mediating Role Of Knowledge Management Practices: How Does Institutional And Interpersonal Trust Support Exploitative And Exploratory Innovation?

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    The purpose of this paper is to investigate the influence of both institutional and interpersonal trust on innovation and deepens the analysis by exploring the mediating role of knowledge management (KM) practices in this relationship. Conceptually, this reflection leads to the proposal of a conceptual model summarizing the relationships between the research variables. This model was tested with 226 senior officials in companies operating in the information and communication technologies (ICT) Tunisian sector on the basis of a structured questionnaire. The collected data were treated by structural equation analysis using AMOS software. The results of the empirical study highlighted the significant relationship between interpersonal trust and innovation and confirmed that KM practices act as partial mediators in this relationship. Findings show also that institutional trust is not correlated to KM practices and to innovation

    Effect of social media fashion influencers’ authenticity on brand loyalty : mediating role of brand trust

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    In recent years, the popularity of social media influencers (SMI) has grown exponentially. However, there is an increasing suspicious perception of consumers regarding brand promotion messages on websites and social media and the authenticity of SMIs. This research is about determining the contribution of the SMI authenticity to brand loyalty and identifying the potential mediating role of brand trust in this link. The results show that only perceived SMI expertise and truthful endorsements positively influence brand loyalty, while only perceived SMI expertise, uniqueness, sincerity, and truthful endorsements positively influence brand loyalty. The findings reported a mediated effect of the brand trust on the relationship between SMI truthful endorsements and brand loyalty. This study can help marketers in defining how followers perceive authentic Fashion influencers on Instagram and how this perception can affect their trust in the brands endorsed by SMI and Brand loyalty

    The contribution of board of directors’ roles to ambidextrous innovation

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    The purpose of this paper is to examine the link between board of directors’ roles namely strategy, service and control roles and ambidextrous innovation. This study also aims to determine whether the independence and gender diversity of boards have mediating effects in this relationship. On the basis of a quantitative approach, the authors conducted a survey on all Tunisian-listed firms. A partial least square method was used to analyze the quantitative data. The authors also conducted semi-structured interviews with a sample of boards’ members of the surveyed firms followed by a thematic analysis of the discourses to discuss the results. Results revealed that ambidextrous innovation is negatively linked to board’s control role. The outcomes of this research show also that ambidextrous innovation is positively associated with board’s service role and that the gender diversity moderates positively this link. Findings do not indicate a significant relationship between board’s strategy role and ambidextrous innovation but show evidence that the relationship is negatively moderated by independent directors, while positively moderated by gender diversity. This research sheds light on the effects of Boards’ roles on ambidextrous innovation and the moderating effect of board’s gender diversity and independence as well. This paper addresses the gap in the literature as this thematic has not been studied, offering key insights with regard to corporate governance of companies looking to achieve ambidextrous innovation

    Mapping quantitative trait loci associated with leaf rust resistance in five spring wheat populations using single nucleotide polymorphism markers

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    Growing resistant wheat (Triticum aestivum L) varieties is an important strategy for the control of leaf rust, caused by Puccinia triticina Eriks. This study sought to identify the chromosomal location and effects of leaf rust resistance loci in five Canadian spring wheat cultivars. The parents and doubled haploid lines of crosses Carberry/AC Cadillac, Carberry/Vesper, Vesper/Lillian, Vesper/Stettler and Stettler/Red Fife were assessed for leaf rust severity and infection response in field nurseries in Canada near Swift Current, SK from 2013 to 2015, Morden, MB from 2015 to 2017 and Brandon, MB in 2016, and in New Zealand near Lincoln in 2014. The populations were genotyped with the 90K Infinium iSelect assay and quantitative trait loci (QTL) analysis was performed. A high density consensus map generated based on 14 doubled haploid populations and integrating SNP and SSR markers was used to compare QTL identified in different populations. AC Cadillac contributed QTL on chromosomes 2A, 3B and 7B (2 loci), Carberry on 1A, 2B (2 loci), 2D, 4B (2 loci), 5A, 6A, 7A and 7D, Lillian on 4A and 7D, Stettler on 2D and 6B, Vesper on 1B, 1D, 2A, 6B and 7B (2 loci), and Red Fife on 7A and 7B. Lillian contributed to a novel locus QLr.spa-4A, and similarly Carberry at QLr.spa-5A. The discovery of novel leaf rust resistance QTL QLr.spa-4A and QLr.spa-5A, and several others in contemporary Canada Western Red Spring wheat varieties is a tremendous addition to our present knowledge of resistance gene deployment in breeding. Carberry demonstrated substantial stacking of genes which could be supplemented with the genes identified in other cultivars with the expectation of increasing efficacy of resistance to leaf rust and longevity with little risk of linkage drag

    Genetic mapping of leaf rust (Puccinia triticina Eriks) resistance genes in six Canadian spring wheat cultivars

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    The Canada Western Red Spring wheat (Triticum aestivum L.) cultivars AAC Concord, AAC Prevail, CDC Hughes, Lillian, Glenlea, and elite line BW961 express a spectrum of resistance to leaf rust caused by Puccinia triticina Eriks. This study aimed to identify and map the leaf rust resistance of the cultivars using three doubled haploid populations, AAC Prevail/BW961 (PB), CDC Hughes/AAC Concord (HC), and Lillian/Glenlea (LG). The populations were evaluated for seedling resistance in the greenhouse and adult plant disease response in the field at Morden, MB for 3 years and genotyped with the 90K wheat Infinium iSelect SNP array. Genetic maps were constructed to perform QTL analysis on the seedling and field leaf rust data. A total of three field leaf rust resistance QTL segregated in the PB population, five in the HC, and six in the LG population. In the PB population, BW961 contributed two QTL on chromosomes 2DS and 7DS, and AAC Prevail contributed a QTL on 4AL consistent across trials. Of the five QTL in HC, AAC Concord contributed two QTL on 4AL and 7AL consistent across trials and a QTL on 3DL.1 that provided seedling resistance only. CDC Hughes contributed two QTL on 1DS and 3DL.2. Lillian contributed four QTL significant in at least two of the three trials on 2BS, 4AL, 5AL, and 7AL, and Glenlea two QTL on 4BL and 7BL. The 1DS QTL from CDC Hughes, the 2DS from BW961, the 4AL from the AAC Prevail, AAC Concord, and Lillian, and the 7AL from AAC Concord and Lillian conferred seedling leaf rust resistance. The QTL on 4AL corresponded with Lr30 and was the same across cultivars AAC Prevail, AAC Concord, and Lillian, whereas the 7AL corresponding with LrCen was coincident between AAC Concord and Lillian. The 7DS and 2DS QTL in BW961 corresponded with Lr34 and Lr2a, respectively, and the 1DS QTL in CDC Hughes with Lr21. The QTL identified on 5AL could represent a novel gene. The results of this study will widen our knowledge of leaf rust resistance genes in Canadian wheat and their utilization in resistance breeding

    Vitamin D as an Adjunctive Therapy in Asthma. Part 1: A Review of Potential Mechanisms

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    Vitamin D deficiency (VDD) is highly prevalent worldwide. The classical role for vitamin D is to regulate calcium absorption form the gastrointestinal tract and influence bone health. Recently vitamin D receptors and vitamin D metabolic enzymes have been discovered in numerous sites systemically supporting diverse extra-skeletal roles of vitamin D, for example in asthmatic disease. Further, VDD and asthma share several common risk factors including high latitude, winter season, industrialization, poor diet, obesity, and dark skin pigmentation. Vitamin D has been demonstrated to possess potent immunomodulatory effects, including effects on T cells and B cells as well as increasing production of antimicrobial peptides (e.g. cathelicidin). This immunomodulation may lead to asthma specific clinical benefits in terms of decreased bacterial/viral infections, altered airway smooth muscle-remodeling and efunction as well as modulation of response to standard anti-asthma therapy (e.g. glucocorticoids and immunotherapy). Thus, vitamin D and its deficiency have a number of biological effects that are potentially important in altering the course of disease pathogenesis and severity in asthma. The purpose of this first of a two-part review is to review potential mechanisms whereby altering vitamin D status may influence asthmatic disease
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