Sökresultat

Filtyp

Din sökning på "*" gav 538903 sökträffar

SinoPedia—A Linked Data Services platform for decentralized knowledge base

Knowledge bases are largely developed and utilized in academic and industrial fields, such as DBPedia, VIAF, LoC, Getty, and which are published in the Linked Data format. However, if you want to view different resources on these knowledge bases, you have to switch between different web pages from these resources. Therefore, we proposed a decentralized data hub named SinoPedia, which consists of s

Temporal hierarchies with autocorrelation for load forecasting

We propose four different estimators that take into account the autocorrelation structure when reconciling forecasts in a temporal hierarchy. Combining forecasts from multiple temporal aggregation levels exploits information differences and mitigates model uncertainty, while reconciliation ensures a unified prediction that supports aligned decisions at different horizons. In previous studies, weig

Diffraction in high-energy collisions

Denne afhandling omhandler processer med lave impuls-overførsler i højenergi partikel kollisioner. Disse processer kan ikke beskrives med perturbativ QCD, og baseres derfor ofte på Regge teori, udviklet før QCD. Flere modeller er udviklet indenfor dette område, og enkelte er i denne afhandling blevet udviklet og studeret. Alle modeller er implementeret som numeriske simuleringer (en Monte Carlo evThis thesis concerns itself with low-momentum-transfer processes in high-energy particle collisions. These processes cannot be described in the framework of the fundamental theory of quantum chromodynamics (QCD), but rely on a pre-QCD approach, the Regge theory. Several models containing various degrees of complexity have been proposed within this framework, some of which have been developed and s

Research on thermal properties of novel silica nanoparticle/binary nitrate/expanded graphite composite heat storage blocks

In order to study the effects of EG (expanded graphite) content and SiO2 nanoparticles on the specific heat and thermal conductivity of nano-SiO2/NaNO3–KNO3/EG composite heat storage materials, a series of nano-SiO2/NaNO3–KNO3/EG composites are prepared by the aqueous solution-ultrasound oscillation method. The nano-SiO2/NaNO3–KNO3 and EG with different mass fractions (5%, 10%, 15% and 20%) are us

Filaggrin variations are associated with PAH metabolites in urine and DNA alterations in blood

Dermal chemical exposure is common in many professions. The filaggrin protein is important for the skin barrier and variations in the filaggrin gene (FLG) may influence the uptake of chemicals via the skin, and consequently, the degree of systemic effects. The aim of this study was to investigate, in chimney sweeps with occupational exposure to polycyclic aromatic hydrocarbons (PAH) from soot, the

Progressive changes in human follicular fluid composition over the course of ovulation : quantitative proteomic analyses

Follicular fluid (FF) acts as a vehicle for paracrine signalling between somatic cells of the follicle and the oocyte. To investigate changes in the protein composition of FF during ovulation, we conducted a prospective cohort study including 25 women undergoing fertility treatment. Follicular fluid was aspirated either before or 12, 17, 32 or 36 h after induction of ovulation (five patients per t

“I didn’t understand, i'm really not very smart”—How design of a digital tutee’s self-efficacy affects conversation and student behavior in a digital math game

How should a pedagogical agent in educational software be designed to support student learning? This question is complex seeing as there are many types of pedagogical agents and design features, and the effect on different student groups can vary. In this paper we explore the effects of designing a pedagogical agent’s self-efficacy in order to see what effects this has on students´ interaction wit

Sex differences in IL-17 contribute to chronicity in male versus female urinary tract infection

Sex-based differences influence incidence and outcome of infectious disease. Women have a significantly greater incidence of urinary tract infection (UTI) than men, yet, conversely, male UTI is more persistent, with greater associated morbidity. Mechanisms underlying these sex-based differences are unknown, in part due to a lack of experimental models. We optimized a model to transurethrally infec

The Sellable Self : Exploring endurance running as an extraordinary consumption experience

In this thesis, I critically explore the ways in which people consume extraordinary experiences and what this can tell us about contemporary society. My findings question the idea that extraordinary experiences are an escape from the demands of everyday life. I show instead that social (especially neoliberal) discourses discipline endurance runners and shape the ways in which they understand and a

Hypertension and cardiovascular diseases in Swedish persons with haemophilia — A longitudinal registry study

Introduction: Data on the prevalence of hypertension and cardiovascular diseases (CVD) among persons with haemophilia (PWH) vary. Sweden has a long tradition of maintaining population-based data registries, and there is extensive follow-up of haemophilia patients due to the use of prophylaxis over decades. We evaluated the prevalence of these diseases among Swedish PWH compared to matched controls

Beam Energy and Centrality Dependence of Direct-Photon Emission from Ultrarelativistic Heavy-Ion Collisions

The PHENIX collaboration presents first measurements of low-momentum (0.41 GeV/c) direct-photon yield dNγdir/dη is a smooth function of dNch/dη and can be well described as proportional to (dNch/dη)α with α≈1.25. This scaling behavior holds for a wide range of beam energies at the Relativistic Heavy Ion Collider and the Large Hadron Collider, for centrality selected samples, as well as for differe

The effect of femoral orientation on the measurement of the head shaft angle : an ex-vivo study

This laboratory study evaluates head shaft angle (HSA) reliability using ranges of simulated femoral orientation often seen in children with cerebral palsy. A dry femur was mounted in a jig that enabled the bone to be positioned in a range of internal and external rotation (-40° to + 40°) and flexion (0°-60°), alone or in combination. A metal wire was placed as a surrogate physis to give two HSA a

New-onset atrial fibrillation among patients with infection in the emergency department : A multicentre cohort study of one-year stroke risk

BACKGROUND: Patients with new-onset atrial fibrillation in relation to infection are frequent in emergency departments (ED) and may require antithrombotic therapy due to increased risk of stroke. Our objective was to describe the one-year risk of stroke in ED patients with infection, new-onset atrial fibrillation and no antithrombotic therapy.METHODS: Population-based cohort study at four EDs in D