Search results for "virtual [photon]"
showing 10 items of 204 documents
Self-dressing in classical and quantum electrodynamics
2003
A short review is presented of the theory of dressed states in nonrelativistic QED, encompassing fully and partially dressed states in atomic physics. This leads to the concept of the reconstruction of the cloud of virtual photons and of self-dressing. Finally some recent results on the classical counterpart of self-dressing are discussed and a comparison is made with the QED case. Attention is drawn to open problems and future lines of research are briefly outlined.
A tool in support of oral implantology
2009
Il brevetto si riferisce ad un dispositivo che trova applicazione nella tecnica “flap-less” in chirurgia impiantare (inserimento di impianti senza esecuzione di lembo chirurgico), tecnica meno invasiva e traumatica per il paziente; esso consente di: - eseguire in modo diretto e preciso la rilevazione del profilo osseo esterno del sito impiantare - determinare l’angolazione ottimale dell’asse di foratura - guidare l’operazione di fresatura secondo l’asse prescelto Il dispositivo, grazie alla sua adattabilità e modularità è utilizzabile per eseguire siti implantari sia singoli che multipli ed è adattabile a tutte le variabili anatomiche che si possono presentare, è inoltre sterilizzabile e qu…
Erratum to: Including virtual photons in strong interactions
2003
A Reinforcement Learning Approach for User Preference-aware Energy Sharing Systems
2021
Energy Sharing Systems (ESS) are envisioned to be the future of power systems. In these systems, consumers equipped with renewable energy generation capabilities are able to participate in an energy market to sell their energy. This paper proposes an ESS that, differently from previous works, takes into account the consumers’ preference, engagement, and bounded rationality. The problem of maximizing the energy exchange while considering such user modeling is formulated and shown to be NP-Hard. To learn the user behavior, two heuristics are proposed: 1) a Reinforcement Learning-based algorithm, which provides a bounded regret and 2) a more computationally efficient heuristic, named BPT- ${K}…
Naturally occurring data in the study of virtual teams in working life – Challenges and opportunities
2014
Previous research on virtual teamwork heavily relies on experiments conducted in laboratory settings, frequently utilizing zero-history university student groups, and drawing conclusions with regard to working life. While such studies can give some preliminary insights into the characteristics of distributed teamwork, they lack a methodological ingredient which is too often neglected in research on human interaction: authenticity. Such findings, consequently, are not easily applicable to what people do in real work life contexts. Earlier pleas to focus more on what is going on outside the laboratory, however, have been widely disregarded. This article takes a stand for including more natura…
VIRTUAL REALITY FOR HISTORICAL ARCHITECTURE
2019
Abstract. This article shows a first step in the development of an immersive virtual tour of the Cathedral of Palermo, entering the fields of Digital Cultural Heritage and Edutainment. Its purpose is to help people to gain knowledge about the site, highlighting the complex stratifications that have characterized its history.The development of the project has been possible thanks to different phases of work: surveys were initially carried out by laser scanning, then assembled and processed to obtain the 3D model of the current state; at the same time, the model of reconstruction was processed in several phases, based on historical, archival and iconographic sources; both models were, later, …
Reducing Relationship Conflict in Virtual Teams With Diversity Faultlines: The Effect of an Online Affect Management Intervention on the Rate of Grow…
2020
The aim of this study was to analyze the effect of an online affect management intervention on relationship conflict through the rate of growth of team resilience in virtual teams with diversity faultlines. Fifty-two 4-person teams participated in a randomized controlled trial design with repeated measures (i.e., three measurement occasions). Teams were randomly assigned to either an intervention designed to help them manage emotions in virtual teams or a control condition. Our findings showed that affect management can reduce the level of relationship conflict in virtual teams with diversity faultlines and that this effect can be explained by the pattern of change in team resilience in re…
Presence and Absence in Global Virtual Team Meetings : Physical, Virtual, and Social Dimensions
2016
Global virtual work is commonly organised around virtual meetings. As virtual team members often belong to multiple groups in their work, finding time for global team meetings may be challenging due to competing priorities and roles as well as different time zones and schedules. Furthermore, social presence does not automatically emerge based on physical or virtual presence. Therefore, the notions of being physically, virtually and socially present or absent in global team meetings are important, and affect the collaboration of global work groups. These different dimensions of presence and absence and their nature as fluctuating phenomena have not yet been scrutinised in virtual work litera…
Medium energy physics with c.w. electron accelerators
2008
Simulación clínica en pediatría y neonatología: adaptación telemática del proyecto de innovación educativa
2021
[EN] Introduction: Framed within an educational innovation project in the nursing degree, we introduce the application of realistic scenarios, generated through the EDISON tool to deal with topics such as pediatric and neonatal CPR. Due to the COVID-19 pandemic, an adaptation of the project to the telematic modality was proposed. Methodology: Analytical exploratory study where the effectiveness of a training intervention in a confinement context was evaluated. It was based on the use of audiovisual materials created through EDISON that configured a VideoBook that was made available to students through the Virtual Platform, evaluating its effectiveness through the final exam of the subject. …