240 research outputs found
The impact of virtual, augmented and mixed reality technologies on the customer experience
The arrival of Virtual-Reality, Augmented-Reality, and Mixed-Reality technologies is shaping a new environment where physical and virtual objects are integrated at different levels. Due to the development of portable and embodied devices, together with highly interactive, physical-virtual connections, the customer experience landscape is evolving into new types of hybrid experiences. However, the boundaries between these new realities, technologies and experiences have not yet been clearly established by researchers and practitioners. This paper aims to offer a better understanding of these concepts and integrate technological (embodiment), psychological (presence), and behavioral (interactivity) perspectives to propose a new taxonomy of technologies, namely the âEPI Cubeâ. The cube allows academics and managers to classify all technologies, current and potential, which might support or empower customer experiences, but can also produce new experiences along the customer journey. The paper concludes with theoretical and managerial implications, as well as a future research agenda
Followersâ reactions to influencersâ Instagram posts
Purpose: The purpose of this study is to analyze how positive behaviors toward influencers (customer interaction) and promoted products (looking for product information) can be achieved, taking into account influencerâproduct fit, in a fashion marketing campaign. In addition, account following and product involvement are examined as possible moderators in these relationships.
Design/methodology/approach: The data were gathered from online participants. The participants were Instagram users who already knew a popular influencer on the platform. The experimental design manipulated the types of picture posted by the influencer to observe customersâ reactions in terms of intention to interact with the influencerâs account and to look for further information about promoted products.
Findings: The authorsâ findings suggested that influencerâproduct matches in posts on Instagram encourage users to search for information about promoted products but do not affect their intention to interact with influencersâ accounts. Nevertheless, customersâ reactions toward an influencerâs posts differ based on whether they are followers of the influencer and whether they are highly or lowly involved with the promoted product. Practical implications: Both brands and influencers should properly manage influencer marketing actions. Brands should control influencersâ audiences and their involvement with featured products so that they are seen to promote them in a natural way. Influencers should endorse branded products that fit their own style; this will increase the interaction on their accounts.
Originality/value: This research contributes to a better understanding of how users can be encouraged to undertake positive online actions as regards influencers (interaction with their accounts) and promoted products (information search) in influencer marketing campaigns
Evidences of evanescent Bloch waves in Phononic Crystals
We show both experimentally and theoretically the evanescent behaviour of
modes in the Band Gap (BG) of finite Phononic Crystal (PC). Based on
experimental and numerical data we obtain the imaginary part of the wave vector
in good agreement with the complex band structures obtained by the Extended
Plane Wave Expansion (EPWE). The calculated and measured acoustic field of a
localized mode out of the point defect inside the PC presents also evanescent
behaviour. The correct understanding of evanescent modes is fundamental for
designing narrow filters and wave guides based on Phononic Crystals with
defects.Comment: 8 pages, 3 figure
Building influencers'' credibility on Instagram: Effects on followersâ attitudes and behavioral responses toward the influencer
Collaborations between influencers and brands have become increasingly popular in recent years. Previous research has mainly focused on influencer marketing as a commercial action designed to enhance followers'' perceptions and reactions toward promoted brands, ignoring the consequences of these promotional actions on influencers'' credibility and their relationships with their followers. This research sheds light on the topic by exploring how influencers'' promotional actions affect their credibility, and followers'' attitudes and behavioral responses toward the influencer (i.e., to continue following, imitate, and recommend them to other users). A study addressed to the followers of a popular influencer was carried out to test the research model. The results showed that perceived influencer-product congruence positively affects followers'' perceptions of the credibility of, and attitude toward, influencers, and negatively affects perceptions of paid communication. Followers'' perceptions that influencers have been paid to take part in promotional activities harms their credibility; however, credibility is essential for generating positive attitudes toward the influencer. Finally, both perceived credibility and attitude foster positive behavioral responses toward the influencer; influencers must enhance these factors to retain their influencing capacity. This research provides managerial implications for influencers and brands that can help enhance followersâ experiences when exposed to promotions on social media
Throughflow Velocity Crossing the Dome of Erupting Bubbles in 2-D Fluidized Beds
A new non-intrusive method for measuring the throughflow velocity crossing the dome of erupting bubbles in freely bubbling 2-D fluidized beds is presented. Using a high speed video-camera, the dome acceleration, drag force and throughflow velocity profiles are obtained for different experiments, varying the superficial gas velocity. The acceleration profiles show greater values in the dome zone where the gravity component is negligible. The drag force and the throughflow velocity profiles show a uniform value in the central region of the dome (40 deg \u3c \u3c 140 deg) and the total throughflow increases with the superficial gas velocity
Hydrodynamic Characteristics of a Fluidized Bed with Rotating Distributor
The performance of a novel rotating distributor fluidized bed is presented. The pressure drop and the standard deviation of pressure fluctuations, Ïp, were used to find the minimum fluidization velocity, Umf, and to characterize the quality of fluidization at different rotational speeds of the distributor plate. Experiments were conducted in the freely bubbling regime in a 0.19 m i.d. fluidized bed, operating with Group B particles according to Geldartâs classification. A decrease in Umf is observed when the rotational speed increases. Frequency analysis of pressure fluctuations shows that fluidization can be controlled by the adjustable rotational speed, at several excess gas velocities
Analytical model to predict the effect of a finite impedance surface on the propagation properties of a 2D Sonic Crystal
The use of Sonic Crystals as environmental noise barriers has certain
advantages from the acoustical and the constructive point of view with regard
to conventional ones. One aspect do not studied yet is the acoustic interaction
between the Sonic Crystals and the ground due to, up to now, this latter is not
included in the analytical models used to characterize these Sonic Crystals. We
present here an analytical model, based on multiple scattering theory, to study
this interaction considering the ground as a finite impedance surface. Using
this model we have obtained interesting conclusions that allow to design more
effectively noise screens based on Sonic Crystals. The obtained results have
been compared with experimental and numerical, finding a good agreement between
them
Non-supersymmetric heterotic model building
We investigate orbifold and smooth Calabi-Yau compactifications of the
non-supersymmetric heterotic SO(16)xSO(16) string. We focus on such Calabi-Yau
backgrounds in order to recycle commonly employed techniques, like index
theorems and cohomology theory, to determine both the fermionic and bosonic 4D
spectra. We argue that the N=0 theory never leads to tachyons on smooth
Calabi-Yaus in the large volume approximation. As twisted tachyons may arise on
certain singular orbifolds, we conjecture that such tachyonic states are lifted
in the full blow-up. We perform model searches on selected orbifold geometries.
In particular, we construct an explicit example of a Standard Model-like theory
with three generations and a single Higgs field.Comment: 1+30 pages latex, 11 tables; v2: references and minor revisions
added, matches version published in JHE
Physical activity and leisure habits and relation with Ruffier index in adolescents
El objetivo del estudio fue medir y correlacionar la prĂĄctica de actividad fĂsica y con el Ăndice de Ruffier (IR) en adolescentes. A un total de 884 alumnos (edad=16,4±0,8 años) se les midiĂł la actividad fĂsica con la VersiĂłn modificada del Assessment of Physical Activity Level Questionnaire (APALQ) y se evaluĂł la capacidad de adaptaciĂłn al esfuerzo mediante el Test Ruffier. La media del Ăndice de Ruffier fue 11,1±4,6 y el Ăndice de actividad fĂsica (IAF) 13,8±4,4. Las relaciones entre IAF y el IR, y entre horas de ocio sedentario e IR resultaron ser significativas aunque dĂ©biles (r=-0,31; p=0,000). En el IR los chicos presentaron valores superiores (t= -8,78; p= 0,000) a las chicas. TambiĂ©n destinan mĂĄs tiempo a la prĂĄctica de AF y estas diferencias fueron significativas en AF reglada y no reglada y en participaciĂłn en competiciĂłn
(p=0,000), mientras que las chicas destinan mĂĄs tiempo a actividades sedentarias como leer y estudiar (p=0,000). Es necesario promover la prĂĄctica de actividades fĂsico-deportivas, especialmente entre las chicasThe aim of the study was to assess and correlate physical activity practice and fitness level in adolescents. A total of 884 students (age=16,4±0,8 years) answered the modified version of the âAssessment of Physical Activity Level Questionnaire (APALQ)â and aerobic capacity was assessed through the Ruffier Test. The mean Ruffier Index (IR) was 11,1±4,6 and the mean Physical Activity Index (IAF) was 13,8±4,4. The relationship between IAF and IR, and between sedentary activities in leisure time and IR, was significant (r=-0,31; p=0,000). although weak. Boys showed higher physical fitness values (t= -8,78; p= 0,000) and spent more time practicing physical activity. These differences were significant for both regulated and not regulated physical activity and for participation in competition (p=0.000). Girls spent more time in sedentary activities like reading and studying (p=0.000). It is necessary to promote physical activity and sport practice, especially among girls
Overlapping of acoustic bandgaps using fractal geometries
The transmission of acoustic waves in a fractal distribution of rigid scatterers embedded in air is reported in this work. The Sierpinsky fractal is used to produce a compact small device containing several periodicities, therefore the fractal distribution contains several finite sonic crystals. The attenuation band produced by the fractal distribution results from the sum of the Bragg peaks of each periodicity. On the other hand, bandgaps of sonic crystal depend on the well-known filling fraction, thus the radii of the scatterers in the fractal distribution has been optimized using genetic algorithm in order to overlap the bandgaps of each periodicity obtaining a wide and full attenuation band.This work was supported by MCI (Spanish Government) and FEDER funds, under Grant Nos. MAT2009-09438 and MTM2009-14483-C02-02. The authors would like to thank Prof. K. ATTENBOROUGH and Dr. E. A. SANCHEZ-PEREZ for their suggestions and for the revision of the manuscript.Castiñeira Ibåñez, S.; Romero GarcĂa, V.; SĂĄnchez PĂ©rez, JV.; GarcĂa-Raffi, LM. (2010). Overlapping of acoustic bandgaps using fractal geometries. EPL. 92(2):240071-240073. doi:10.1209/0295-5075/92/24007S24007124007392
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