Certainty equivalence adaptive controllers are analysed using a “data-driven Riccati equation”, corresponding to the model-free Bellman equation used in Q-learning. The equation depends quadratically on data correlation matrices. This makes it possible to derive simple sufficient conditions for stability and robustness to unmodeled dynamics in adaptive systems. The paper is concluded by short rema

To solve the problem of low precision measurement accuracy of aircraft target algorithm in remote sensing images, an improved YOLOv5s algorithm was proposed based on YOLOv5s algorithm for aircraft target identification. The backbone network, neck network, output and loss function parts of YOLOv5s network were improved respectively. Spatial pyramid pooling-fast module was replaced by atrous spatial

The main options for deep decarbonisation of primary steel production are to continue using coal and employ carbon capture and storage (CCS) or to change the production process to direct reduction by utilizing hydrogen produced from renewable energy resources. In India, the world's second-largest steel producer, a shift to renewables is inhibited by the current power market regime, which includes

Resilience has become a ubiquitous term. Individuals, communities and societies are increasingly called upon to be resilient and build resilience as a way to withstand and bounce back from compound climate-induced shocks, conflicts, health and economic crises. In this provocation we critically interrogate the potential that resilience holds for moving beyond a world marked by crises and widening i

Objectives: Posttransplant infections may lead to dire consequences in immunocompromised organ recipients. Oral foci of infection are therefore often eliminated prior to solid organ transplantation to reduce posttransplant morbidity. However, despite increasing numbers of organ transplantations the necessity of pretransplant dental treatment and its effect on transplant outcome remains uncertain.

Obesity and cardiometabolic disease often, but not always, coincide. Distinguishing subpopulations within which cardiometabolic risk diverges from the risk expected for a given body mass index (BMI) may facilitate precision prevention of cardiometabolic diseases. Accordingly, we performed unsupervised clustering in four European population-based cohorts (N ≈ 173,000). We detected five discordant p

Predation's consequences can manifest through either consumptive or nonconsumptive effects, but the prey response may also vary depending on the predator hunting strategy. Considerable attention has been paid to coursing predators, whereas less information is available regarding responses to ambush predators. To remedy this paucity, we utilized a three-dimensional tracking platform to record group

Opening remarks – These guidelines are the result of dis-cussions within a diverse group of RSA researchers. They were approved in December 2023 by the board and selected members of the International Radiostereometry Society to update the guidelines by Valstar et al. [1]. By adhering to these guidelines, RSA studies will become more transparent and consistent in execution, presentation, reporting,

Persistence of malaria parasites in asymptomatic hosts is crucial in areas of seasonally-interrupted transmission, where P. falciparum bridges wet seasons months apart. During the dry season, infected erythrocytes exhibit extended circulation with reduced cytoadherence, increasing the risk of splenic clearance of infected cells and hindering parasitaemia increase. However, what determines parasite

BACKGROUND: Transportation noise has been linked with cardiometabolic outcomes, yet whether it is a risk factor for atrial fibrillation (AF) remains inconclusive. We aimed to assess whether transportation noise was associated with AF in a large, pooled Nordic cohort.METHODS: We pooled data from 11 Nordic cohorts, totaling 161,115 participants. Based on address history from five years before baseli

Background: Fatigue may significantly effect everyday- and working life for radiotherapy patients. Some studies indicate a correlation between radiation dose and irradiated volume of the brain and the presence of fatigue. Our hypothesis was that patient reported outcome measures (PROMs) can improve our understanding of the patients’ symptoms following proton beam therapy (PBT) and optimize PBT for

BACKGROUND: Transportation noise has been linked with breast cancer, but existing literature is conflicting. One proposed mechanism is that transportation noise disrupts sleep and the circadian rhythm. We investigated the relationships between road traffic noise, DNA methylation in circadian rhythm genes, and breast cancer. We selected 610 female participants (318 breast cancer cases and 292 contr

Introduction: Home oxygen therapy is one of the few interventions that can improve survival in patients with chronic obstructive pulmonary disease (COPD) when administered appropriately, although it may cause side effects and be an unnecessary burden for some patients. Areas covered: This narrative review summarizes the current literature on the assessment of hypoxemia, different types of home oxy

In 2005, an occupied cliff nest of a Common Buzzard was found in a quarry near Geseke in North Rhine-Westphalia, Northwest Germany. Cliff nests are common in Great Britain and parts of the Alps, but in Central Europe tree nests are the rule. The relevant literature describes only a few nests on the ground, but none on cliffs. Despite the breeding of a pair of Eagle Owls Bubo bubo in the same area