122 documents found, page 1 of 13

Does Prior Abdominal Surgery Influence Technique Survival of Peritoneal Dialysi...

Introduction: Prior abdominal surgery may result in peritoneal membrane adhesions and fibrosis. Its impact on peritoneal membrane function and peritoneal dialysis technique survival has not been adequately investigated. The aim of our study was to investigate the effect of prior abdominal surgical procedures on peritoneal dialysis technique survival. Methods: We performed a retrospective, longitudinal study tha...

Development and evidence of validity of the new sexual double standard scale

The Sexual Double Standard is a complex multi-layered construct that functions as an organizing principle of heterosexual behavior. It is a dynamic, ubiquitous, two-dimensional sexual gendered norm, the quantitative exploration of which requires up-to-date assessment tools to better capture both personal endorsement and social recognition of the SDS. This study develops a New SDS Scale to assess personal SDS, w...

Psicologia educacional: Investigação e intervenção em Portugal, Vol. II

A presente obra tem como principal objectivo dar a conhecer, num 2º volume, a investigação e a intervenção em Psicologia Educacional desenvolvida no âmbito do Programa de Doutoramento Interuniversitário em Psicologia, especialidade de Psicologia da Educação, uma iniciativa conjunta da Faculdade de Psicologia e de Ciências da Educação da Universidade de Coimbra e da Faculdade de Psicologia da Universidade de Lis...

Aprendizagem colaborativa no ecossistema da U.Porto

A transparent distributed ledger-based certificate revocation scheme for VANETs

The widespread adoption of Cooperative, Connected, and Automated Mobility (CCAM) applications requires the implementation of stringent security mechanisms to minimize the surface of cyber attacks. Authentication is an effective process for validating user identity in vehicular networks. However, authentication alone is not enough to prevent dangerous attack situations. Existing security mechanisms are not able ...

A modular in-vehicle C-ITS architecture for sensor data collection, vehicular c...

The growth of the automobile industry in recent decades and the overuse of personal vehicles have amplified problems directly related to road safety, such as the increase in traffic congestion and number of accidents, as well as the degradation of the quality of roads. At the same time, and with the contribution of climate change effects, dangerous weather events have become more common on road infrastructure. ...

A roadside and cloud-based vehicular communications framework for the provision...

Road infrastructure plays a critical role in the support and development of the Cooperative Intelligent Transport Systems (C-ITS) paradigm. Roadside Units (RSUs), equipped with vehicular communication capabilities, traffic radars, cameras, and other sensors, can provide a multitude of vehicular services and enhance the cooperative perception of vehicles on the road, leading to increased road safety and traffic ...

Blockchain-based decentralized identification in IoT: an overview of existing f...

The popularity of the Internet of Things (IoT) and Industrial IoT (IIoT) has caused a rapid increase in connected entities and exposed its lack of adequate Identity Management (IdM). Traditional IdM systems are highly dependent on central authorities; any failure can potentially compromise the entire system. To eliminate the drawback of central authorities and evolve IdM systems to meet increasingly stringent s...

VERCO: a privacy and data-centric architecture for verifiable cooperative maneu...

Cooperative, Connected and Automated Mobility (CCAM) applications, enabled by vehicular communications and vehicle automation technologies, are set to increase traffic safety and efficiency. An important feature of CCAM is the potential to decide and coordinate maneuvers among automated vehicles in a more efficient and secure manner, when compared to human drivers. However, maneuver decision and coordination is...

Heuristic energy management algorithm for buildings with renewables and vehicle...

Electrical energy consumption is steadily growing worldwide, while renewable energy sources are gaining market share. In parallel, energy systems are undergoing a profound transformation, moving from a top-down hierarchical structure to a more decentralized model focused on the consumer, who will also produce, store and sell their own energy. This paper proposes a decision algorithm designed to help with the en...