2024
Autores
Jorge, P; Teixeira, J; Rocha, V; Ribeiro, J; Silva, N;
Publicação
BIOPHOTONICS IN POINT-OF-CARE III
Abstract
Sensing at the single cell level can provide insights into its dynamics and heterogeneity, yielding information otherwise unattainable with traditional biological methods where average population behavior is observed. In this context, optical tweezers provide the ability to select, separate, manipulate and identify single cells or other types of microparticles, potentially enabling single cell diagnostics. Forward or backscatter analysis of the light interacting with the trapped cells can provide valuable insights on the cell optical, geometrical and mechanical properties. In particular, the combination of tweezers systems with advanced machine learning algorithms can enable single cell identification capabilities. However, typical processing pipelines require a training stage which often struggles when trying to generalize to new sets of data. In this context, fully automated tweezers system can provide mechanisms to obtain much larger datasets with minimum effort form the users, while eliminating procedural variability. In this work, a pipeline for full automation of optical tweezers systems is discussed. A performance comparison between manually operated and fully automated tweezers systems is presented, clearly showing advantages of the latter. A case study demonstrating the ability of the system to discriminate molecular binding events on microparticles is presented.
2024
Autores
Paulino, D; Ferreira, J; Netto, A; Correia, A; Ribeiro, J; Guimaraes, D; Barroso, J; Paredes, H;
Publicação
2024 IEEE 12TH INTERNATIONAL CONFERENCE ON SERIOUS GAMES AND APPLICATIONS FOR HEALTH, SEGAH 2024
Abstract
Microtasks have become increasingly popular in the digital labor market since they provide easy access to a crowd of people with varying skills and aptitudes to perform remote work tasks that even the most capable algorithmic systems are unable to complete in a timely and efficient fashion. However, despite the latest advancements in crowd-powered and contiguous interfaces, many crowd workers still face some accessibility issues, which ultimately deteriorate the quality of the work produced. To mitigate this problem, we restrict attention to the development of two different web-based mini-games with a focus on cognitive personalization. We have conducted a pilot gamified experience, with six participants with autism, dyslexia, and attention deficit hyperactivity. The results suggest that a web-based mini-game can be incorporated in preliminary microtask-based crowdsourcing execution stages to achieve enhanced cognitive personalization in crowdsourcing settings.
2024
Autores
Moreno, P; Areias, M; Rocha, R; Costa, VS;
Publicação
INTERNATIONAL JOURNAL OF PARALLEL PROGRAMMING
Abstract
Prolog systems rely on an atom table for symbol management, which is usually implemented as a dynamically resizeable hash table. This is ideal for single threaded execution, but can become a bottleneck in a multi-threaded scenario. In this work, we replace the original atom table implementation in the YAP Prolog system with a lock-free hash-based data structure, named Lock-free Hash Tries (LFHT), in order to provide efficient and scalable symbol management. Being lock-free, the new implementation also provides better guarantees, namely, immunity to priority inversion, to deadlocks and to livelocks. Performance results show that the new lock-free LFHT implementation has better results in single threaded execution and much better scalability than the original lock based dynamically resizing hash table.
2024
Autores
Mamede H.S.; Santos A.;
Publicação
Creating Learning Organizations Through Digital Transformation
Abstract
Organizations find themselves at a pivotal crossroads in an era propelled by the sweeping tide of digital transformation, where the wake of the COVID-19 pandemic has reshaped the global landscape. Within these novel contexts, the imperative to cultivate Learning Organizations (LOs) has emerged as a beacon of adaptability and progress. Creating Learning Organizations Through Digital Transformation weaves the fabric of LOs within the digital tapestry, where minds perpetually expand, and learning begets learning. This journey hinges on the synergy of knowledge and digital prowess, as LOs harness data and digital content with finesse. From immersive learning to artificial intelligence, these technological frontiers reshape learning, spurring change. Unveiling the core concepts, implementations, and global impacts of LOs, this book is a compass for academics, researchers, and practitioners. It deciphers people capacities, digital contents, learning technologies, and evaluation, nurturing the symbiotic relationship between learning and transformation. Creating Learning Organizations Through Digital Transformation is the scholarly guidepost in a swiftly evolving landscape. It beckons to those attuned to academia and those shaping real-world organizations, resonating with the pursuit of knowledge in an era of unceasing change.
2024
Autores
Oliveira, LCd; Schlemmer, E; Teribele, A; Barauna, D; Diehl, MR;
Publicação
A UNIVERSIDADE NO PARADIGMA DA EDUCAÇÃO OnLIFE
Abstract
2024
Autores
Sousa, N; Alén, E; Losada, N; Melo, M;
Publicação
JOURNAL OF VACATION MARKETING
Abstract
Virtual reality (VR) has emerged as a powerful promotional tool in tourism, providing consumers immersive and engaging experiences. However, its specific impact on the wine tourism sector remains underexamined. This study aims to both investigate and convincingly highlight the promotional influence of VR on the intention to visit wine tourism destinations. By providing an immersive VR experience to 405 participants, our research revealed that the quality of VR experiences is essential for generating consumer satisfaction. More crucially, we found that wine tourists' satisfaction with VR experiences plays a crucial role in motivating them to visit a destination. Our results not only fill a gap in understanding the impact of VR on wine tourist behaviour but also offer valuable insights for marketing professionals and companies in the sector. This study emphasises the critical need for enjoyable, high-quality and satisfying VR experiences to catalyse the intention to visit. In doing so, we contribute to academic knowledge and provide practical guidance for the industry, highlighting VR's effectiveness as a promotional strategy in wine tourism. This research is not merely an exploration but a compelling defense of VR's transformative influence on wine tourist behaviour.
The access to the final selection minute is only available to applicants.
Please check the confirmation e-mail of your application to obtain the access code.