Universidad del Noreste

Dependent reachable sets for the constant bearing pursuit strategy

This paper introduces a novel reachability problem for the scenario involving two agents, where one agent follows another agent using a feedback strategy. The geometry of the reachable set for an agent, termed dependent reachable set, is characterised using the constant bearing p...

HybridPortal: Enabling Hybrid Group Interactions in Hybrid Events through a Mobile Portal

Hybrid events are increasingly prevalent, offering in-person and remote participation to enhance inclusivity and sustainability. However, they often fail to create cohesive experiences, leaving remote participants feeling disconnected from in-person interactions. We present Hybri...

"The Only Thing Certain About This is Uncertainty": Exploring Informal Care Coordination Practices Among Older Adults with Mild Cognitive Impairment

Older adults aging in place often have informal support systems to help them maintain independence and quality of life. As they age, many older adults deal with the onset of Mild Cognitive Impairment (MCI), which introduces a new set of functional and cognitive changes that affec...

Safe multi-agent motion planning in presence of FDIAs via Kalman filter and filtered reinforcement learning

This paper studies safe motion planning for multi-agent systems in complex environments under Gaussian noise and false data injection attacks (FDIAs). Such attacks corrupt sensor measurements, degrade state estimation, and impair collision avoidance. To address this problem, we p...

Bridging Knowledge Gaps in Clinical AI: An Activity Theory Perspective on Interdisciplinary Data Work for Telehealth

Advanced AI technologies are increasingly integrated into clinical domains to advance patient care. The design and development of clinical AI technologies necessitate seamless collaboration between clinical and technical experts. However, such interdisciplinary teams are often un...

Distributed adaptive safety-critical coverage control of multiple autonomous underwater vehicles

This paper addresses the problem of distributed adaptive safety-critical coverage control for multiple autonomous underwater vehicles (AUVs), and proposes a novel distributed control strategy to simultaneously ensure the safety and coverage of multiple AUVs. For AUVs with disturb...

Psilocybin as a treatment for repetitive mild head injury: evidence from neuroradiology and molecular biology

Repetitive mild head injuries incurred while playing organized sports, during car accidents and falls, or in active military service are a major health problem. These head injuries induce cognitive, motor, and behavioral deficits that can last for months and even years with an in...

Multi-band cross-correlation dark sirens: enhancing cosmological parameter and gravitational-wave bias constraints

Abstract Multi-band gravitational-wave (GW) observation, combining space-borne and ground-based detectors across different frequency bands, can improve the sky localization of compact binary sources by two to three orders of magnitude compared to single-band detection. This enhan...

YOLO-RCHA: a gear defect detection method based on robust context-aware hybrid attention mechanism

Gear surface defect detection plays a crucial role in gear inspection, quality control and maintenance. In the process of defect detection, the complex and variable shooting situations and the multiscale, small-sized, complex texture, low-contrast defects lead to inefficient and...

The Development and Validation of the Ethnic-Racial Identity Developmental Dynamics Scale (ERIDDS)

This study introduces and provides initial validation of the Ethnic-Racial Identity Developmental Dynamics Scale (ERIDDS), a self-report measure of current retrospective perceptions of continuity and change in ethnic-racial identity (ERI) meaning. Grounded in developmental contex...

Experimental three-dimensional dendrite tip shape characterization by interferometry and phase-field comparison during columnar directional solidification

International audience

The paradox of neglecting changes in behavior: How standard epidemic models misestimate both transmissibility and final epidemic size

Abstract During epidemic outbreaks, populations adapt their behavior in response to disease burden, fundamentally altering transmission dynamics. Despite this, most compartmental models assume constant contact rates throughout outbreaks. To quantify biases from this assumption, w...

Investigation of the induction heating behavior of aluminum particles under different filling structures for electromagnetic tapping

To achieve rapid melting of the blocking alloy during the electromagnetic tapping, hot-state physical simulation experiments were carried out to investigate the feasibility of using aluminum particles as the core filling material. The induction heating behaviour and melting mecha...

Stearic acid-modified calcium sulfate whiskers as reinforcements for ultra-high molecular weight polyethylene

Industrial solid waste is an abundant but underexploited feedstock for advanced materials production. Herein, we develop a scalable strategy for the high-value utilization of flue gas desulfurization gypsum from Baotou Iron and Steel Group. We converted it into high-aspect-ratio...

Effect of graphite incorporation on the compressive strength and wear properties of polyurethane composites

Polyurethane-based composites (PUCs) are promising materials for stretch-forming dies used in aircraft skin components; however, their limited load-bearing capacity and insufficient wear resistance under severe conditions remain major challenges. In this work, graphite powder (GP...

Spatiotemporal prediction of two-dimensional surface deformation in gas field incorporating MSBAS-InSAR and deep learning

Continuous extraction-induced deformation from oil and gas fields can trigger destructive geological hazards, significantly threatening underground infrastructure safety. Therefore, reliable surface deformation prediction is crucial for early warning of potential risks in oil and...

Bidirectional higher-order-mode slot antennas with sidelobe suppression

In this paper, three higher-order-mode slot antennas with high gain and bidirectional radiation characteristics are proposed. Each proposed antenna consists of a folded slot fed by a microstrip line. One antenna operates in the fourth-order resonant mode, whereas the other two op...

Through the colonial lens: the Italian populist radical right and foreign policy relations with Italy’s former colonies

This paper draws attention to the role of colonial memory in the Italian populist radical right’s views on Italy’s foreign policy with its former colonies across the Mediterranean (i.e. Libya, Ethiopia, Eritrea and Somalia). While recent academic scholarship has studied the influ...