Sökresultat

Filtyp

Din sökning på "*" gav 531327 sökträffar

An algorithm for identifying least manipulable envy-free and budget-balanced allocations in economies with indivisibilities

We analyze the problem of allocating indivisible objects and monetary compensations to a set of agents. In particular, we consider envy-free and budget-balanced rules that are least manipulable with respect to agents counting or with respect to utility gains. A key observation is that, for any profile of quasi-linear preferences, the outcome of any such least manipulable envy-free rule can be obta

Combustion chemistry of methoxymethanol. Part II : Laminar flames of methanol+formaldehyde fuel mixtures

In the present study, the laminar burning velocities of mixtures of up to 16.4% (mol) formaldehyde in methanol, burning with air, were determined at atmospheric pressure using the heat flux method covering lean, stoichiometric and rich flames at initial gas mixture temperatures of 298, 318 and 338 K. Results published in the literature indicate that evaporation of CH2O+CH3OH fuel blends should lea

Semantic Synthesis of Pedestrian Locomotion

We present a model for generating 3d articulated pedestrian locomotion in urban scenarios, with synthesis capabilities informed by the 3d scene semantics and geometry. We reformulate pedestrian trajectory forecasting as a structured reinforcement learning (RL) problem. This allows us to naturally combine prior knowledge on collision avoidance, 3d human motion capture and the motion of pedestrians

The links between students’ relationships with teachers, likeability among peers, and bullying victimization : the intervening role of teacher responsiveness

Highly responsive teachers tend to foster behaviors that are low in conflict and high in prosociality, among their students, leading to a positive classroom climate and to a decrease in bullying victimization. However, little is known about the interaction between teacher responsiveness and both student–teacher, and student–student relationship characteristics, in influencing students’ bullying vi

Sequential infiltration synthesis and pattern transfer using 6 nm half-pitch carbohydrate-based fingerprint block copolymer

This study presents how sequential infiltration synthesis of trimethyl aluminium and water into a carbohydrate-based block copolymer was used to enable pattern transfer of 6 nm half-pitch horizontal cylinders into silicon. Specular neutron reflectometry measurements of poly(styrene)-block-maltoheptaose self-assembled into horizontal cylinders indicate an increasing content of alumina after each se

Wood modification as a tool to understand moisture in wood

Moisture plays a central role in the performance of wood products because it affects important material properties such as the resistance to decomposition, the mechanical properties, and the dimensions. To improve wood performance, a wide range of wood modification techniques that alter the wood chemistry in various ways have been described in the literature. Typically, these modifications aim to

Results After Open and Endovascular Repair of Popliteal Aneurysm : A Matched Comparison Within a Population Based Cohort

Objective: To identify factors affecting the outcome after open surgical (OSR) and endovascular (ER) repair of popliteal artery aneurysm (PA) in comparable cohorts. Methods: A matched comparison in a national, population based cohort of 592 legs treated for PA (2008 – 2012), with long term follow up. Registry data from 899 PA patients treated in 2014 – 2018 were analysed for time trends. The 77 le

Periodontitis, assessed using periodontal treatment as a surrogate marker, has no association with a first myocardial infarction in a Swedish population

Background: Periodontitis is suggested to be associated with a risk of cardiovascular events. Using periodontal treatment recorded in Swedish national registries as a surrogate marker, we aimed to investigate whether periodontitis was associated with a first myocardial infarction. Methods: This nationwide case-control study, with data from national registries, involved 51,880 individuals with a fi

The irritant receptor TRPA1 mediates the mosquito repellent effect of catnip

Catnip (Nepeta cataria) is a common garden herb well known for its euphoric and hallucinogenic effects on domestic cats,1–3 for its medicinal properties,4,5 as well as for its powerful repellent action on insects.6,7 Catnip extracts have been proposed as a natural alternative to synthetic insect repellents, such as N,N-diethyl-3-methylbenzamide (DEET),8,9 but how catnip triggers aversion in insect

Spectral induced polarization: frequency domain versus time domain laboratory data

Spectral information obtained from induced polarization (IP) measurements can be used in a variety of applications and is often gathered in frequency domain (FD) at the laboratory scale. In contrast, field IP measurements are mostly done in time domain (TD). Theoretically, the spectral content from both domains should be similar. In practice, they are often different, mainly due to instrumental res

International Society of Urological Pathology Expert Opinion on Grading of Urothelial Carcinoma

Context: Grading is the mainstay for treatment decisions for patients with non–muscle-invasive bladder cancer (NMIBC). Objective: To determine the requirements for an optimal grading system for NMIBC via expert opinion. Evidence acquisition: A multidisciplinary working group established by the International Society of Urological Pathology reviewed available clinical, histopathological, and molecul

Neurodevelopmental outcomes in children with isolated congenital diaphragmatic hernia : A systematic review and meta-analysis

Background: Congenital diaphragmatic hernia (CDH) reportedly has neurologic consequences in childhood however little is known about the impact in isolated CDH. Aims: Herein we aimed to describe the risk of neurodevelopmental complications in children born with isolated CDH. Materials & Methods: We systematically reviewed literature for reports on the neurological outcome of infants born with i

Adding leaves to the Lepidoptera tree : capturing hundreds of nuclear genes from old museum specimens

Museum collections around the world contain billions of specimens, including rare and extinct species. If their genetic information could be retrieved at a large scale, this would dramatically increase our knowledge of genetic and taxonomic diversity information, and support evolutionary, ecological and systematic studies. We here present a target enrichment kit for 2953 loci in 1753 orthologous n

European Resuscitation Council and European Society of Intensive Care Medicine guidelines 2021 : post-resuscitation care

The European Resuscitation Council (ERC) and the European Society of Intensive Care Medicine (ESICM) have collaborated to produce these post-resuscitation care guidelines for adults, which are based on the 2020 International Consensus on Cardiopulmonary Resuscitation Science with Treatment Recommendations. The topics covered include the post-cardiac arrest syndrome, diagnosis of cause of cardiac a

Long-Term Effects of Childhood Nutrition: Evidence from a School Lunch Reform

We study the long-term impact of a policy-driven change in childhood nutrition. For this purpose, we evaluate a program that rolled out nutritious school lunches free of charge to all pupils in Swedish primary schools between 1959 and 1969. We estimate the impact of the program on children's economic, educational, and health outcomes throughout life. Our results show that the school lunch program

Explaining Ignoring – Working with Information that Nobody Uses

Research has demonstrated how ignorance is made, manipulated and called upon; how it is the result of strategies, activities and structures. This article extends the literature on ignorance by exploring actors’ own explanations of their self-inflicted ignorance following acts of ignoring. By means of a case analysis, we explore how actors explain and justify ignoring data they themselves produced.

Considerations on Performance Evaluation of Atrial Fibrillation Detectors

Objective: A large number of atrial fibrillation (AF) detectors have been published in recent years, signifying that the comparison of detector performance plays a central role, though not always consistent. The aim of this study is to shed needed light on aspects crucial to the evaluation of detection performance. Methods: Three types of AF detector, using either information on rhythm, rhythm and

”Debatten riskerar att förbise bättre och billigare lösningar på elbristfrågan”

Frans Libertson och Jenny Palm skriver om vikten av att nyansera debatten om Sveriges elförsörjning med fler perspektiv på energisystemets utformning. Under det senaste 10 åren har frågan främst diskuterats utifrån ett centraliserat perspektiv, dvs att elproduktionen ska ske i storskaliga anläggningar och att besluten som styr produktionen tas på nationell nivå. Detta snäva fokus riskerar att förb