1,720,986 research outputs found
A Kano analysis of food delivery apps in Italy: fair riders’ pay matters
No full textPurpose: This study investigates the factors that influence Italian consumers’ continued use of food delivery applications (FDAs). It aims to explore the deeper motivations and experiential dimensions that drive sustained engagement, going beyond what is typically captured by quantitative models. Design/methodology/approach: The research adopts a mixed-methods approach. It begins with qualitative data collection through focus group discussions involving experienced FDA users aimed at uncovering in-depth motivations behind reuse behaviour. Insights from the focus groups inform the development of a Kano model-based questionnaire that is then administered to a sample of Italian consumers across diverse demographic segments. The Kano model was used to categorise and prioritise satisfaction drivers influencing reuse intentions. Findings: This study uncovers fair riders’ compensation as a pivotal must-be requirement, an ethical expectation whose absence leads to disengagement. Other must-be attributes include effective customer service, accessible online support, data privacy, reliable location tracking and avoidance of unavailable items. One-dimensional features such as promotions, sustainable packaging and real-time tracking directly impact satisfaction, whereas attractive features such as real-time menus and split-bill options enhance enjoyment when present. Originality/value: This study contributes to the literature on digital consumer behaviour towards FDAs with a qualitative enquiry and Kano model analysis to identify both explicit and latent drivers of reuse. It provides novel insights into how ethical considerations, particularly those related to labour conditions, intersect with functional and emotional value propositions to shape consumer loyalty in digital service platforms. These findings have implications for food delivery providers seeking to foster long-term user retention
Low-velocity impact behaviour of fibreglass-aluminium laminates
No full textLow-velocity impact tests were performed on fibreglass–aluminium composites made of 2024 T3 sheets and S2-glass/epoxy prepreg layers, using an instrumented falling weight machine. For comparison purposes, similar tests were carried out on monolithic 2024 T3 sheets of equivalent thickness. In the tests, the impact speed, mass, and energy were varied, to ascertain the influence of these parameters on the material response. From the results obtained, the overall force–displacement curve only depends on the impact energy, rather than on the mass and speed separately. Further, the energy required for penetration is higher for monolithic aluminium than for the fibreglass– aluminium. However, the latter material seems to offer better performance than carbon fibre- and glass fibre-reinforced laminates in terms of penetration energy, damage resistance, and inspectability. The main failure modes of fibreglass – aluminium were assessed by both ultrasonic C-scan and chemical grinding of aluminium sheets. It was found that the energy required for first failure is very low, whereas the energy level resulting in first fibre failure is similar to that inducing first cracking in the 2024 T3 sheets. From the experimental data, simple empirical relationships were found for the calculation of maximum contact force, energy, and residual displacement as a function of the maximum displacement
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
«Sonó por Compostela esta grand maravilla»: el milagro VIII de Gonzalo de Berceo
No full textIl milagro VIII della raccolta di Berceo, El romero de Santiago, si segnala per più di una ragione: dall’“anomalia” di un protagonista non devoto “esclusivo” della Vergine, la quale è chiamata a dirimere la contesa sulla sua anima tra San Giacomo e i diavoli, allo sviluppo ampio e articolato della trama, a una certa “ambiguità” dottrinale. Il contributo si propone di analizzarne anzitutto le peculiarità compositive, a cominciare dalla scansione temporale e dall’articolazione spaziale, evidenziandone circolarità, parallelismi, opposizioni, struttura della disputa. Pivot strutturale del racconto resta ovviamente l’intervento di Maria, grazie al quale il “romero” risorge, il cui ruolo di co-redentrice, dispensatrice di grazia e intermediaria tra cielo e terra è rimarcato dall’istanza “arbitrale” rivoltale dall’Apostolo. Si affronterà dunque la questione della castrazione e del suo rapporto con il voto di celibato del clero, anche alla luce dei principi riformatori che si vanno affermando nella prima metà del XIII secolo.El milagro VIII de la colección de Berceo, El romero de Santiago, es notable por varias razones: desde la “anomalía” de un protagonista no devoto “exclusivo” de la Virgen, que está llamada a resolver la disputa sobre su alma entre Santiago y los demonios, al amplio y articulado desarrollo de la trama, a una cierta "ambigüedad" doctrinal. La contribución se propone analizar en primer lugar las peculiaridades de composición del relato, a partir de las coordenadas espaciales y temporales, destacando su circularidad, los paralelismos, las oposiciones, la estructura de la disputa. Pivote estructural de la historia sigue siendo, por supuesto, la intervención de María, gracias a la cual el “romero” resucita, cuyo papel como co-redentora, dispensadora de gracia y intermediaria entre el cielo y la tierra es subrayado por la instancia "arbitral" que el Apóstol le dirige. Se abordará también el tema de la castración y su relación con el celibato del clero, también a la luz de los principios reformadores que se van adoptando en la primera mitad del siglo XIII
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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