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In previous work we have shown that any subalgebra A⊆K[x] of finite codimension n can be described by a finite set Sp(A), called the subalgebra spectrum of A, together with n defining conditions. In this paper we show that a similar result applies to subalgebras of infinite codimension. We also develop new tools for the case of finite codimension. One of them is to introduce an ideal I(A) in A of
We report the first experimental observation of carrier-envelope phase-driven energy bunching in laser wakefield acceleration. Using a few-cycle (∼9 fs), multiterawatt laser pulse and ionization injection in a helium-nitrogen gas mixture, we observe electron spectra composed of multiple quasimonoenergetic peaks with regular narrow energy spacing. This comb structure arises from intermittent trappi
Aim: An electrocardiogram is commonly recommended in breath-holding spell management, mainly to rule out long QT syndrome. This retrospective study investigated the risk of long QT syndrome being misdiagnosed as breath-holding spells in a paediatric population in southern Sweden. Methods: Data on patient characteristics and diagnostic findings were reviewed for patients aged < 10 years who were di
Inhalation administration of therapeutics is a crucial method for treatment of respiratory diseases, offering direct access to the target organ. However, the progression of candidate drugs is frequently impacted by clinical dose level limitations due to lung histopathological findings or functional effects identified in in vivo studies. Addressing these safety concerns is crucial in advancing comp
Background: Recent advances have highlighted the potential of artificial intelligence (AI) systems to assist clinicians with administrative and clinical tasks, but concerns regarding biases, lack of regulation, and potential technical issues pose significant challenges. The lack of a clear definition of AI, combined with limited focus on qualitative research exploring clinicians' perspectives, has
Objectives The aim was to estimate the prevalence and risk of respiratory symptoms among workers exposed to epoxy resin systems in the wind turbine industry. Methods We conducted a cross-sectional study including 180 epoxy-exposed production workers from two Danish wind turbine blade factories and 41 non-exposed office workers. Respiratory symptoms were defined as having two or more symptoms (i.e.
Background: The prognostic benefit of percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) in stable coronary artery disease (CAD) remains uncertain. Objectives: To evaluate long-term survival following CTO PCI compared with medical therapy (MT) using target trial emulation and a nationwide real-world registry. Methods: We included 7813 patients with stable CAD and a document
Moult, the regular replacement of feathers, is a resource-intense avian annual-cycle stage. Resource allocation to support feather regrowth may require downregulation of other physiological processes, such as immune function, which is critical for preventing disease-related mortality. At the same time, the emergence of new feathers may increase the risk of skin injury and infection, potentially re
Objective: The aim of this study was to investigate the experiences of school nurses working with refugee children from Ukraine. Design: This research was conducted as a qualitative interview study, using an inductive approach and a semi-structured interview guide. Sample: School nurses (n = 8) from different parts of Sweden were interviewed, and the data were analyzed through a qualitative conten
Accurate grading of Oil Palm Fresh Fruit Bunches (FFB) is pivotal for maximizing agricultural yield, yet manual assessment in unstructured environments remains labor-intensive and subjective. While Convolutional Neural Networks (CNNs) offer an automated solution, the conventional strategy of scaling network depth often yields diminishing returns or overfitting on moderately sized datasets. To over
IMPORTANCE: Key information is often omitted from pediatric randomized controlled trial (RCT) protocols, including details on dose adjustments of interventions based on age, body surface area, or weight; developmental appropriateness of trial outcome measures and processes; or strategies to minimize participants' anxiety and pain. These deficiencies impair the planning and implementation of potent
IMPORTANCE: Randomized controlled trials (RCTs) in children and adolescents provide evidence for patients, families, researchers, clinicians, regulators, funders, policymakers, and other interest holders to inform decisions about health care interventions and improve outcomes for young patients and their families. To critically evaluate, interpret, and apply trial results, readers require access t
