Universidad Privada Boliviana

Design and Evaluation of Lightweight Cryptographic Primitives for Secure Communication in Resource-Constrained LPWAN Devices

The fast growth of Low-Power Wide-Area Networks (LPWANs) within the scope of Internet of Things (IoT) brought up the urgent questions of secure communications in highly resource-limited settings. As a robust AES and RSA conventional cryptographic scheme, it applied a heavy burden...

Long‐Term Propagation Measurements in Madrid in a Q‐Band Satellite‐to‐Earth Link

ABSTRACT The Q/V band (40/50 GHz) is gaining interest as satellite operators will need larger bandwidth to be able to provide their services, which are experiencing an increasingly high demand. An accurate characterization of the satellite‐to‐Earth propagation channel is of param...

Entropy and stability of an extremally charged Einstein–Born–Infeld thin shell

Abstract Spacetimes with a thin shell offer a framework where both the dynamical and the thermodynamical stability of the matter comprising the shell can be consistently studied. In the present work, we consider the dynamical and the thermodynamical stability of a spherical thin...

Changes in Emotional and Vocal Expression in Job Interview Simulations with an AI-Enhanced Chatbot for University Students

This study examined whether AI-powered chatbot-based training was associated with changes in university students’ Facial and Vocal Emotional Reaction Time Proportions during simulated job interviews. A one-group pretest–posttest design was conducted with 54 third- and fourth-year...

Hiperuniverse

This volume develops the Hiperuniverse hypothesis as a candidate common ontology for physical description. Its primitive referent is a single, self-contained physical whole in which operative distinctions appear as typed registration events and ordered histories. Spatial identity...

Hiperuniverse

This volume develops the Hiperuniverse hypothesis as the basis of a new ontology for a unifiedaccount of physical phenomena. The Hiperuniverse is conceived as a single, physically selfcontainedwhole: every operative distinction, process, record, and interaction must have anintern...