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  1. No Access

    Article

    Most nearby young star clusters formed in three massive complexes

    Efforts to unveil the structure of the local interstellar medium and its recent star-formation history have spanned the past 70 years (refs. 16). Recent studies using precise data from space astrometry missions ...

    Cameren Swiggum, João Alves, Robert Benjamin, Sebastian Ratzenböck in Nature (2024)

  2. No Access

    Article

    The Radcliffe Wave is oscillating

    Our Sun lies within 300 parsecs of the 2.7-kiloparsecs-long sinusoidal chain of dense gas clouds known as the Radcliffe Wave1. The structure’s wave-like shape was discovered using three-dimensional dust map**, ...

    Ralf Konietzka, Alyssa A. Goodman, Catherine Zucker, Andreas Burkert, João Alves in Nature (2024)

  3. No Access

    Article

    Insights into star formation and dispersal from the synchronization of stellar clocks

    Age is one of the most fundamental parameters of a star, yet it is one of the hardest to determine as it requires modelling various aspects of stellar formation and evolution. When we compare the ages derived ...

    Núria Miret-Roig, João Alves, David Barrado, Andreas Burkert in Nature Astronomy (2024)

  4. No Access

    Chapter and Conference Paper

    Blockchain in a Maintenance Database

    Nowadays, data management is part of the maintenance management. Organizations are now gathering a diverse range of data, including information from sensors and operator logs, among others. To structure a data...

    Suzana Lampreia, Teresa Morgado in Driving Quality Management and Sustainabil… (2024)

  5. No Access

    Chapter and Conference Paper

    Develo** a TRIZ-Lean Methodology in Portuguese Navy Complex Systems

    To maximize safety and the useful life of the equipment while reducing costs, new philosophies and tools must be used to replace the old maintenance habits. A TRIZ-Lean approach, applied to maintenance managem...

    João Alves, Teresa Morgado, Suzana Lampreia in Driving Quality Management and Sustainabil… (2024)

  6. Article

    Open Access

    Viral genetic clustering and transmission dynamics of the 2022 mpox outbreak in Portugal

    Pathogen genome sequencing during epidemics enhances our ability to identify and understand suspected clusters and investigate their relationships. Here, we combine genomic and epidemiological data of the 2022...

    Vítor Borges, Mariana Perez Duque, João Vieira Martins in Nature Medicine (2023)

  7. No Access

    Chapter and Conference Paper

    Blockchain Assisted Voting in Academic Councils

    Councils are a common organisational structure of Portuguese Universities and Polytechnic Institutes. They make the key decisions, in these organisations, by nominal voting at assembly meetings. The COVID pand...

    João Alves, António Pinto in Blockchain and Applications, 4th International Congress (2023)

  8. No Access

    Article

    Augmented reality situated visualization in decision-making

    Decision-making processes and decision support systems (DSS) have been improved by a variety of methods originated from several scientific fields, such as information science and artificial intelligence (AI). ...

    Nuno Cid Martins, Bernardo Marques, João Alves in Multimedia Tools and Applications (2022)

  9. No Access

    Article

    Remote collaboration in maintenance contexts using augmented reality: insights from a participatory process

    Problem solving in Industry 4.0 often requires collaboration among remote team members, which face increased complexity on their daily tasks and require mechanisms with adaptive capabilities to share and combi...

    Bernardo Marques, Samuel Silva, João Alves in International Journal on Interactive Desig… (2022)

  10. No Access

    Chapter and Conference Paper

    Cloud-Based Privacy-Preserving Medical Imaging System Using Machine Learning Tools

    Healthcare environments are generating a deluge of sensitive data. Nonetheless, dealing with large amounts of data is an expensive task, and current solutions resort to the cloud environment. Additionally, the...

    João Alves, Beatriz Soares, Cláudia Brito in Progress in Artificial Intelligence (2022)

  11. No Access

    Chapter and Conference Paper

    Skill Learning for Long-Horizon Sequential Tasks

    Solving long-horizon problems is a desirable property in autonomous agents. Learning reusable behaviours can equip the agent with this property, allowing it to adapt them when performing various real-world tas...

    João Alves, Nuno Lau, Filipe Silva in Progress in Artificial Intelligence (2022)

  12. No Access

    Chapter and Conference Paper

    Curriculum Preparation for Battery Value Chain Skills Needs

    In this paper we will introduce the approach the ALBATTS Blueprint Project partners took in curriculum preparation for battery value chain skills needs. We developed a methodology that meets the challenges of ...

    Milan Zorman, Anders Norberg in Systems, Software and Services Process Imp… (2022)

  13. No Access

    Article

    Star formation near the Sun is driven by expansion of the Local Bubble

    For decades we have known that the Sun lies within the Local Bubble, a cavity of low-density, high-temperature plasma surrounded by a shell of cold, neutral gas and dust13. However, the precise shape and extent ...

    Catherine Zucker, Alyssa A. Goodman, João Alves, Shmuel Bialy, Michael Foley in Nature (2022)

  14. No Access

    Chapter

    Tourism Events: Bringing Innovation to the North of Portugal

    Tourist destinations are places or regions that offer a set of tourism products, which provide experiences to the consumer according to their itinerary, culture, travel motivation, education, or life experienc...

    Susana Silva, Cândida Silva, João Alves in Tourism Entrepreneurship in Portugal and Spain (2022)

  15. No Access

    Chapter

    Convolutional Neural Networks Analysis Using Concentric-Rings Interactive Visualization

    The goal of this paper is to present the interactive web visualization technique DeepRings. The technique has a radial design, using concentric rings to represent the layers of a deep learning model, where eac...

    João Alves, Tiago Araújo in Integrating Artificial Intelligence and Vi… (2022)

  16. No Access

    Article

    A Solar System formation analogue in the Ophiuchus star-forming complex

    Anomalies among the daughter nuclei of the extinct short-lived radionuclides in calcium–aluminium-rich inclusions indicate that the Solar System must have been born near a source of the short-lived radionuclid...

    John C. Forbes, João Alves, Douglas N. C. Lin in Nature Astronomy (2021)

  17. Article

    Open Access

    Faint objects in motion: the new frontier of high precision astrometry

    Sky survey telescopes and powerful targeted telescopes play complementary roles in astronomy. In order to investigate the nature and characteristics of the motions of very faint objects, a flexibly-pointed ins...

    Fabien Malbet, Céline Boehm, Alberto Krone-Martins in Experimental Astronomy (2021)

  18. No Access

    Chapter and Conference Paper

    Exploring Annotations and Hand Tracking in Augmented Reality for Remote Collaboration

    Collaboration among remotely distributed professionals is often required in a maintenance context. Professionals need mechanisms with adaptive capabilities to enable knowledge transfer, since the necessary exp...

    Tiago Madeira, Bernardo Marques, João Alves in Human Systems Engineering and Design III (2021)

  19. No Access

    Chapter and Conference Paper

    Using Augmented Reality and Step by Step Verification in Industrial Quality Control

    Quality control procedures are extremely important among industrial applications. Generally, these tasks include many repetitive tasks that require manual intervention. Given their complexity, quality control ...

    João Alves, Bernardo Marques, Paulo Dias in Human Systems Engineering and Design III (2021)

  20. No Access

    Article

    A Galactic-scale gas wave in the solar neighbourhood

    For the past 150 years, the prevailing view of the local interstellar medium has been based on a peculiarity known as the Gould Belt14, an expanding ring of young stars, gas and dust, tilted about 20 degrees to ...

    João Alves, Catherine Zucker, Alyssa A. Goodman, Joshua S. Speagle in Nature (2020)

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