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AbstractIntroductionConservative treatment of acute appendicitis is gaining popularity, and identifying patients with a higher risk of recurrence is becoming increasingly important. Previous studies have suggested that older age, male sex, diabetes, appendicolith and abscess formation may be contributing factors, however, results from the adult population are inconsistent.AimThis study aims to ide
In the context of natural hazard risk quantification and modeling of hazard interactions, some literature separates “Level I” (or occurrence) interactions from “Level II” (or consequence) interactions. The Level I interactions occur inherently due to the nature of the hazards, independently of the presence of physical assets. In such cases, one hazard event triggers or modifies the occurrence of a
As it is the case in many European countries, psychosocial disabil-ities have become an important concern in Sweden. Persons withpsychosocial disabilities’ experiences of various societal domainssuch as school, work, family life, leisure activities and contactwith welfare agencies need a complex analysis which takes intoaccount both personal and contextual factors. This article draws on15 intervie
COVID-19 disease models have aided policymakers in low-and middle-income countries (LMICs) with many critical decisions. Many challenges remain surrounding their use, from inappropriate model selection and adoption, inadequate and untimely reporting of evidence, to the lack of iterative stakeholder engagement in policy formulation and deliberation. These issues can contribute to the misuse of mode
With increased autonomy in marine vessels, autonomous surface vessels (ASVs) and conventionally manned vessels need to coexist at sea. Any relocation needs to include collision avoidance according to the traffic rules at sea, COLREGs. Here, a local collision-avoidance planner for an archipelago environment is presented. The optimization-based local planner presented considers a predefined nominal
Low-carbon behaviour changes are essential for achieving the Paris Agreement to limit global warming to 1.5° Celsius. Increasingly, it is recognised that such behaviour changes cause further effects in individuals' lifestyles, which are important to understand for the success of such low-carbon behaviour changes. Rebound effects can occur that undermine the carbon savings, and individual well-bein
We address the challenges in estimating 3D human poses from multiple views under occlusion and with limited overlapping views. We approach multi-view, single-person 3D human pose reconstruction as a regression problem and propose a novel encoder-decoder Transformer architecture to estimate 3D poses from multi-view 2D pose sequences. The encoder refines 2D skeleton joints detected across different
Recently, many forms of audio industrial applications, such as sound monitoring and source localization, have begun exploiting smart multi-modal devices equipped with a microphone array. Regrettably, model-based methods are often difficult to employ for such devices due to their high computational complexity, as well as the difficulty of appropriately selecting the user-determined parameters. As a
The composition-dependent spin exchange interaction in a perovskite-structured Pb(Fe0.5−xNix)Nb1/2O3 system has been studied to understand its multiferroicity at room-temperature. Special emphasis was paid to the magnetic behavior in terms of magnetic moment, interatomic distance, and atomic ordering because they play a key role in the modulation of magnetic multiferroic behavior. We observed that
Hyperbolic paraboloids, “hypars,” are special types of ruled surfaces. Their geometric properties provide them with loadbearing and stabilizing capacities, as well as distinct esthetic qualities. These attributes become evident in numerous applications in buildings, in many of which concrete or timber is used for the construction of the hypars. Hypars could also be relevant in the context of circu
We study the realizability and strong satisfiability problems for SAFETY LTL, a syntactic fragment of Linear Temporal Logic ([Formula presented]) capturing safe formulas. While it is well-known that realizability for this fragment lies in [Formula presented], the best-known lower bound is [Formula presented]-hardness. Surprisingly, closing this gap has proven an elusive task. Previous works have c
We extend and strengthen a theorem of Bates that says that row-finite graphs that are strong shift equivalent have Morita equivalent graph C*-algebras. This allows us to ask whether our stronger notion of Morita equivalence does in fact characterise strong shift equivalence. We believe this will be relevant for future research on infinite graphs and their C*-algebras. We also study in-splits and o
This paper addresses the problem of synchronizing orthogonal matrices over directed graphs. For synchronized transformations (or matrices), composite transformations over loops equal the identity. We formulate the synchronization problem as a least-squares optimization problem with nonlinear constraints. The synchronization problem appears as one of the key components in applications ranging from
This paper addresses the consensus problem and the formation problem on SE(3) in multi-agent systems with directed and switching interconnection topologies. Several control laws are introduced for the consensus problem. By a simple transformation, it is shown that the proposed control laws can be used for the formation problem. The design is first conducted on the kinematic level, where the veloci
Background: Vascular adverse events after collagenase injection for Dupuytren disease are absent in large trials and systematic reviews. The aim of this study is to present a case series of delayed vascular complications after collagenase treatment. Methods: A prospective evaluation of 1181 consecutively treated patients at one orthopedic department identified three patients reporting symptoms of
vNOTES hysterectomy is a scarless minimally invasive method with a vaginal approach to the abdominal cavity combined with endoscopic overview. Studies have shown that patients who underwent vNOTES hysterectomy had less pain and shorter hospital stay than after laparoscopic hysterectomy.
Baserat på befintliga nationella och kommunala föreskrifter, krav och råd som finns utspridda i olika dokument samt internationella rekommendationer om bästa praxis har omfattande riktlinjer sammanställts för hantering av cyklister vid vägarbetsplatser.
Kapitalet innehåller en kort introduktion till den amerikanska stadsbyggnadsrörelsen New Urbanism och dess småstadsideal, samt en diskussion kring frågan om det går att bygga städer i förorten. Med utgångspunkt i amerikanska och brittiska exempel diskuteras vad en nybyggd småstad skulle kunna vara och hur möjligheterna att lyckas med att bygga nya städer ser ut. Slutsatsen blir att det är möjligt,
The Neumann--Neumann method is a commonly employed domain decomposition method for linear elliptic equations. However, the method exhibits slow convergence when applied to semilinear equations and does not seem to converge at all for certain quasilinear equations. We therefore propose two modified Neumann--Neumann methods that have better convergence properties and require less computations. We pr
Submerged membrane modules either in flat or hollow fibre configuration have established themselves as a standard module for membrane bioreactors (MBRs) in municipal and industrial wastewater treatment. In recent years two new concepts using submerged membrane modules have been developed for (1) direct membrane filtration (DMF) for municipal wastewater treatment and for (2) storm and rain harvesti
