1,721,117 research outputs found
Logical and Technological Representations of Architectural Space: A Comparative Analysys of Kundmanngasse Haus and Casa Batlló
No full textThis paper discusses the design of a system for Extended
Realities (XR) in live arts performances. XR, a broad concept and
medium, enhances the capabilities of Virtual and Augmented Reality
(VR/AR) by incorporating spatial audio and multiple projections for
audiences. In live performance scenarios, XR has the potential to define a
novel, specific type of audience engagement, which is largely unexplored.
This paper specifically examines the modular structure of the system, prioritizing
a high-level description over detailed implementation specifics.
However, details are included as needed for clarity and to provide context
within the XR medium. According to the design, a VR/AR performer
wearing a headset can interact with virtual objects, controlling the audio
and visuals generated during the performance. The system is divided into
modules dedicated to specific functions: audio generation, video generation,
event scheduling, parameter mapping, and inter-machine connections
(typically, the system requires several machines to run in parallel
due to performance and input/output necessities). These modules are
overseen by a main module, the VR/AR performer module.
The system is designed to explore and leverage specific affordances of
XR as a medium. It envisions XR performance as a stratified experience
of multiple realities, such as the simultaneous existence of VR/AR and
screen-based content. Moreover, it ensures that these different types of
content are connected and interdependent, a feature crucial for delivering
immersive experiences to audiences who cannot directly experience
VR/AR content. To achieve this, a dynamic ecosystem of devices is supported
to accommodate various perspectives and dimensions of reality.
The system has been entirely designed to cater to these needs and facilitate
rapid content creation and prototyping
A technique for the correction of long-term magnetic flux integrator drift
No full textIn the framework of magnetic measurements in particle accelerators, the problem of the drift due to integration of a voltage offset causes a lack of stability, which is inadequate for long-term measurements. In this paper, a new approach for the modelling and correction of long-term drift in integrators is discussed. In particular, a feed-forward drift correction method has been developed analytically and tested using experimental data taken from an existing real-time magnetic measurement system. Among all the sensors, NMR was chosen for the integration constant due to its accuracy (10 −6 ) and the Metrolab PT2026 NMR teslameter has been tested successfully as a novel kind of quasi-DC field marker. The combination of feed-forward correction and PT2026 as a marker will allow the future real-time magnetic measurement systems to meet the very strict specification of 1 μT field stability over durations of the order of minutes. In certain cases, such as in ELENA, this method offers a way to reduce by three orders of magnitude the drift-induced field error with respect to the existing system
The Impact of Virtual Reality Social Platforms on Autobiographical Memory and Self-disclosure: An Experimental Study
No full textThis study explores the impact of two different interaction modalities: traditional face-to-face (F2F) versus virtual reality (VR) social platforms, on autobiographical memory specificity, self-disclosure, and relational closeness, with a focus on. The study employed a within-subject design to allow for direct comparison between the two conditions. In each condition participants were asked to recall and describe positive memories linked to cue words across three different semantic areas: neutral, food-related and body-related. Following each session, participants completed questionnaires designed to measure levels of self-disclosure and perceived intimacy and closeness with the interlocutor. The hypothesis was that VR social platforms, with their perceived safety and anonymity, would facilitate more specific memory recall and greater self-disclosure, particularly for emotionally charged stimuli related to eating and body image. Contrary to expectations, results indicated that F2F interactions yielded higher memory specificity for food-related stimuli. No significant difference in memory specificity was found between modalities for neutral or body-related stimuli. Additionally, perceived self-disclosure and relational closeness with the interlocutor scores were significantly higher in F2F settings, suggesting that physical presence enhances perceived connection. This study contributes to understanding how different interaction environments affect psychological outcomes, which is critical for developing effective therapeutic interventions, especially for sensitive topics like body image and eating attitudes
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
Healthy Food Delivery: Evidences from Italy
No full textFor several years Food Delivery Business has been growing strongly both in Italy and internationally, but during the 2020 global COVID-19 epidemic, there was an even stronger increase because the benefits of online food delivery were evident, as it facilitated consumer access to prepared meals and allowed restaurant workers and suppliers to continue to operate. This research work focuses on a very particular type of food delivery, namely the one that deals only with deliveries of healthy food and superfoods. Large companies and Healthy Food Delivery (HFD) startups have different operational models and ways for service provision than traditional Restaurant Delivery systems. These are complex and non-linear mechanisms and for this reason they have proved to be interesting to analyze. The authors of this paper use a qualitative approach through multiple case studies to obtain a detailed description. A framework has been established to observe the different entrepreneurial initiatives from different perspectives
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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