Design of Virtual Hands for Natural Interaction in the Metaverse.

The emergence of the Metaverse is raising important questions in the field of human-machine interaction that must be addressed for a successful implementation of the new paradigm. Therefore, the exploration and integration of both technology and human interaction within this new framework are needed. This paper describes an innovative and technically viable proposal for virtual shopping in the fashion field. Virtual hands directly scanned from the real world have been integrated, after a retopology process, in a virtual environment created for the Metaverse, and have been integrated with digital nails. Human interaction with the Metaverse has been carried out through the acquisition of the real posture of the user's hands using an infrared-based sensor and mapping it in its virtualized version, achieving natural identification. The technique has been successfully tested in an immersive shopping experience with the Meta Quest 2 headset as a pilot project, where a transactions mechanism based on the blockchain technology (non-fungible tokens, NFTs) has allowed for the development of a feasible solution for massive audiences. The consumers' reactions were extremely positive, with a total of 250 in-person participants and 120 remote accesses to the Metaverse. Very interesting technical guidelines are raised in this project, the resolution of which may be useful for future implementations.

Mobile Devices and Sensors for an Educational Multimedia Opera Project.

Interactive computer-based music systems form a rich area for the exploration of collaborative systems where sensors play an active role and are important to the design process. The Soundcool system is a collaborative and educational system for sound and music creation as well as multimedia scenographic projects, allowing students to produce and modify sounds and images with sensors, smartphones and tablets in real time. As a real-time collaborative performance system, each performance is a unique creation. In a comprehensive educational project, Soundcool is used to extend the sounds of traditional orchestral instruments and opera singers with electronics. A multidisciplinary international team participates, resulting in different performances of the collaborative multimedia opera The Mother of Fishes in countries such as Spain, Romania, Mexico and the USA.

Planificación del alta / Discharge planning

El alta hospitalaria constituye una transición clave en salud, cuya importancia frecuentemente queda invisibilizada ante el apremio por hospitalizaciones más abreviadas y procesos que por años se han desarrollado de determinada forma. Un alta planificada y/o ejecutada de manera inadecuada puede significar reingresos y repercutir negativamente a nivel del usuario, sus familias y sistemas de atención. Múltiples intervenciones, con distinto nivel de evidencia buscan optimizar el proceso, enfocándose en los equipos, dispositivos y/o usuarios involucrados. Dado que no existe una única estrategia efectiva, el presente artículo recorre aspectos que la literatura ha identificado como relevantes al momento de trabajar por altas planificadas.

Hospital discharge is a key transition health process, whose relevance is often overshadowed by the urgency of shortened hospitalizations and health institutions routines that have been settled for many years. An unplanned and inappropriate discharge can lead to readmissions and negative implications for patients, caregivers and hospitals. Therefore, multiple interventions exist, with different levels of evidence that seek to improve the discharge process by focusing on health teams, institutions and patients. Given there is no single effective strategy, this article covers aspects that several authors have identified as relevant when working on discharge planning.