Customer engagement with digitalized interactive platforms in retailing

Digitalized interactive platforms (DIPs) such as Apple watch, Starbucks apps and Nike+ have seen enormous growth. This study empirically investigates the antecedents and consequences of customer engagement in a digitalized interactive platform of an online shoe retailing start-up. Specifically, we integrate service-dominant logic and self-determination theory to explore the complex relationships between human psychological needs, customer engagement and subjective well-being. We hypothesise that, in case of digitalized interactive platforms, the direct relationship between human psychological needs satisfaction (autonomy, relatedness and competence) and subjective well-being is mediated by customer engagement (cognitive, affective and behavioral). We applied a hybrid SEM-ANN approach to unravel the relationships. Findings show that autonomy and competence have significant relationships with all the dimensions of customer engagement (cognitive, affective and behavioral). Results also show that subjective well-being is not influenced by cognitive engagement but is influenced by affective and behavioral engagement. Theoretical and managerial contributions are discussed

Identifying influencers on social media

© 2020 Elsevier Ltd The increased availability of social media big data has created a unique challenge for marketing decision-makers; turning this data into useful information. One of the significant areas of opportunity in digital marketing is influencer marketing, but identifying these influencers from big data sets is a continual challenge. This research illustrates how one type of influencer, the market maven, can be identified using big data. Using a mixed-method combination of both self-report survey data and publicly accessible big data, we gathered 556,150 tweets from 370 active Twitter users. We then proposed and tested a range of social-media-based metrics to identify market mavens. Findings show that market mavens (when compared to non-mavens) have more followers, post more often, have less readable posts, use more uppercase letters, use less distinct words, and use hashtags more often. These metrics are openly available from public Twitter accounts and could integrate into a broad-scale decision support system for marketing and information systems managers. These findings have the potential to improve influencer identification effectiveness and efficiency, and thus improve influencer marketing

Efficacy of β-lactam/β-lactamase inhibitors to treat extended-spectrum beta-lactamase-producing Enterobacterales bacteremia secondary to urinary tract infection in kidney transplant recipients (INCREMENT-SOT Project)

REIPI/INCREMENT-SOT Group.[Background] Whether active therapy with β-lactam/β-lactamase inhibitors (BLBLI) is as affective as carbapenems for extended-spectrum β-lactamase-producing Enterobacterales (ESBL-E) bloodstream infection (BSI) secondary to urinary tract infection (UTI) in kidney transplant recipients (KTRs) remains unclear.[Methods] We retrospectively evaluated 306 KTR admitted to 30 centers from January 2014 to October 2016. Therapeutic failure (lack of cure or clinical improvement and/or death from any cause) at days 7 and 30 from ESBL-E BSI onset was the primary and secondary study outcomes, respectively.[Results] Therapeutic failure at days 7 and 30 occurred in 8.2% (25/306) and 13.4% (41/306) of patients. Hospital-acquired BSI (adjusted OR [aOR]: 4.10; 95% confidence interval [CI]: 1.50-11.20) and Pitt score (aOR: 1.47; 95% CI: 1.21-1.77) were independently associated with therapeutic failure at day 7. Age-adjusted Charlson Index (aOR: 1.25; 95% CI: 1.05-1.48), Pitt score (aOR: 1.72; 95% CI: 1.35-2.17), and lymphocyte count ≤500 cells/μL at presentation (aOR: 3.16; 95% CI: 1.42-7.06) predicted therapeutic failure at day 30. Carbapenem monotherapy (68.6%, primarily meropenem) was the most frequent active therapy, followed by BLBLI monotherapy (10.8%, mostly piperacillin-tazobactam). Propensity score (PS)-adjusted models revealed no significant impact of the choice of active therapy (carbapenem-containing vs any other regimen, BLBLI- vs carbapenem-based monotherapy) within the first 72 hours on any of the study outcomes.[Conclusions] Our data suggest that active therapy based on BLBLI may be as effective as carbapenem-containing regimens for ESBL-E BSI secondary to UTI in the specific population of KTR. Potential residual confounding and unpowered sample size cannot be excluded (ClinicalTrials.gov identifier: NCT02852902).This work was supported by: (1) Plan Nacional de I+D+i 2013-2016 and Instituto de Salud Carlos III (ISCIII), Subdirección General de Redes y Centros de Investigación Cooperativa, Ministerio de Ciencia, Innovación y Universidades, Spanish Network for Research in Infectious Diseases [RD16/0016/0001, RD16/0016/0002, REIPI RD16/0016/0008; RD16/0016/00010], co-financed by European Development Regional Fund “A way to achieve Europe”, Operative Program Intelligent Growth 2014-2020; (2) European Society of Clinical Microbiology and Infectious diseases Study Group for Infections in Compromised Hosts (ESGICH, grant to J.M.A.); (3) Sociedad Andaluza de Trasplante de Órgano Sólido (SATOT, grant to L.M.M.); (4) Research project PI16/01631 integrated into the Plan Estatal de I+D+I 2013-2016 and co-financed by the ISCIII-Subdirección General de Evaluación y Fomento de la Investigación and the Fondo Europeo de Desarrollo Regional (FEDER); (5) M.F.R. holds a research contract “Miguel Servet” (CP 18/00073) from ISCIII, Ministerio de Ciencia, Innovación y Universidades. The work was also supported by the following European Society of Clinical Microbiology and Infectious diseases (ESCMID) study groups: Infections in Compromised Hosts (ESGICH), Bloodstream Infections and Sepsis (ESGBIS) and Antimicrobial Resistance Surveillance (ESGARS).Peer reviewe

Effect of chlorine on solid solution formation in ruthenium titanium dioxide coatings

Rutile-type dioxides of titanium and ruthenium form partial solid solutions at temperatures above 1000°C, whereas the miscibility is complete in the temperature range of 350-600°C, when the oxides are coated on titanium or alumina substrates. The present work tends to show that the RuxTit-xO2 coatings are metastable solutions wherein the chloride ions are likely to replace the oxide ions on the sublattice O2- sites. The increase of a and c parameters in the overall composition range are compatible with a Cl/Ru ratio of 2.5 at.% in the rutile lattice. This ratio does not depend upon the titanium content and therefore it is thought that the Cl- ions are compensated by reduced Ru3+ (or Ti3+) species. The electrical conductivity retains its metal-like characteristics in the composition range of 30-100% RuO2, this is accounted for by the existence of RuO π* bands along (110) directions. The reduced ions in equilibrium with Cl- would provide additional paths for electron transport along the c-axis, explaining the high values of conductivity in the concentration range of 30-50% RuO2. © 1984.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Improving direct mail targeting through customer response modeling

International audienceDirect marketing is an important tool in the promotion mix of companies, amongst which direct mailing is crucial. One approach to improve direct mail targeting is response modeling, i.e. a predictive modeling approach that assigns future response probabilities to customers based on their history with the company. The contributions to the response modeling literature are three-fold. First, we introduce well-known statistical and data-mining classification techniques (logistic regression, linear and quadratic discriminant analysis, naïve Bayes, neural networks, decision trees, including CHAID, CART and C4.5, and the k-NN algorithm) to the direct marketing community. Second, we run a predictive benchmarking study using the above classifiers on four real-life direct marketing datasets. The 10-fold cross-validated area under the receiver operating characteristics curve is used as evaluation metric. Third, we give managerial insights that facilitate the classifier choice based on the trade-off between interpretability and predictive performance of the classifier. The findings of the benchmark study show that data-mining algorithms (CHAID, CART and neural networks) perform well on this test bed, followed by simplistic statistical classifiers like logistic regression and linear discriminant analysis. It is shown that quadratic discriminant analysis, naïve Bayes, C4.5 and the k-NN algorithm yield poor performance

A Guide to Graphic Design For Functional versus Experiential Ads: Color-Evoked Emotion and Design Complexity Can Enhance Effectiveness

International audiencePrevious research has focused on the content differences of functional versus experiential advertisements. The current research instead investigates graphic-design differences. The authors first conducted an observational study to observe graphic-design differences in real-life functional and experiential advertisements. Afterwards, they experimentally investigated how the effectiveness of functional and experiential advertisements might be enhanced through two key graphic-design elements: color (in terms of evoked emotions: pleasure, arousal, dominance) and design complexity. The authors’ findings provide guidance to advertising designers for matching content graphics with design elements

The future of technology in marketing; utopia or dystopia?

International audienceOur special issue attracted a lot of attention! The big question is did it answer the question; utopia or dystopia? Take a look for yourself. Across two issues, we present papers on the latest trends in marketing technology, from artificial intelligence (AI), to data mining, to influencers, to smart retailing. We also present papers on engagement, positive and negative, and the psychological impacts of technology in higher education. Into the second issue, we start with a piece on, not just publish or perish, but also the need to promote. We present papers with a more international context, and finish with concerns around privacy and justice

Inversionless amplification and propagation in an electronuclear level-mixing scheme

We study the propagation of a drive and probe bichromatic field in a compound electronuclear system [Opt. Commun. 179, 525 (2000)] from the viewpoint of inversionless amplification. In the regimes of adiabatic pulse and steady-state propagation, part of the ground-state population is trapped in a dark state thereby reducing the absorption of a probe field. This is reinforced by spontaneous emission for the steady-state case, for which the optimal amplification length is calculated. Beyond this length, the medium becomes absorbent for the probe field. In the complementary limit of ultrashort pulses, the medium reduces to a V scheme in which the drive field can self-induce transparency. © 2001 The American Physical Society.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Gain without inversion for gamma radiation

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