We propose three 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, wei

In Sweden, almost half of the electricity produced comes from hydropower. However, the amount of water in the reservoir catchments is not evenly distributed throughout the year. During the colder months, precipitation usually falls as snow and accumulates into a snowpack. This frozen water is not available to the energy producers until the spring snow melt when as much as 70% of the annual dischar

Background: In a European study on contact allergy in the general population, it was hypothesized that the combination of contact allergy to a fragrance together with a history indicating dermatitis at exposure, and thereafter subsequent avoidance of scented products, implied a diagnosis of allergic contact dermatitis. Objectives: The primary aim of this study was to validate this hypothesis and a

Aim: To determine whether pregnancy-associated plasma protein-A2 levels are increased in early pregnancies complicated by gestational diabetes and whether gestation age influences levels. The possible use of pregnancy-associated plasma protein-A2 as a pre-screening biomarker to reduce the need for performing oral glucose tolerance tests in pregnant women was also investigated. Methods: Pregnant wo

Background: Progressive cognitive deficits are the main clinical symptom of Alzheimer’s disease; however, the precise recording of cognitive deficits and assessment of their progression pose major problems in patient care and early interventions. Objective: Which problems for care and early intervention result from the current practice of cognitive assessment of patients with memory problems and w

Alzheimer's disease researchers have been intrigued by the selective regional vulnerability of the brain to amyloid-β plaques and tau neurofibrillary tangles. Post-mortem studies indicate that in ageing and Alzheimer's disease tau tangles deposit early in the transentorhinal cortex, a region located in the anterior-temporal lobe that is critical for object memory. In contrast, amyloid-β pathology

A fundamental question for economic sociology is: how are prices set? In economic sociological theory, a price is generally conceptualized either in terms of the performative construction of economy (e.g. a market device), or in terms of co-ordinational effects of power relations between buyers and sellers (e.g. the effect of social structures and institutions). In this paper, I set out to show ho

(E)valuative technologies such as standards and conventionalized (e)valuative practices, some including the use of technological devices, govern the production of food in the global north. Food supply chains consist of multiple interrelated markets, where goods are (e)valuated to distinguish their qualities and prices. Qualities and prices that are transformed as the raw materials move through the

Vad är teori och på vilka sätt kan man arbeta med teoretisk problematisering i en uppsats? Den här boken är en introduktion till hur man förhåller sig till teori och problemformulering i uppsatser inom samhällsvetenskap och ekonomi. Inledningsvis ges en introduktion till vad en teori är, och vilken funktion teorier fyller i den vetenskapliga processen. Därefter presenteras olika praktiska metoder

BACKGROUND: Heparin-binding protein (HBP) is released by neutrophils upon activation, and elevated plasma levels are seen in inflammatory states like sepsis, shock, cardiac arrest, and burns. However, little is known about the elimination of HBP. We wanted to study renal clearance of HBP in healthy individuals and in burn patients in intensive care units (ICUs). We also wished to examine the level

Fundamental bounds on antenna gain are found via convex optimization of the current density in a prescribed region. Various constraints are considered, including self-resonance and only partial control of the current distribution. Derived formulas are valid for arbitrarily shaped radiators of a given conductivity. All the optimization tasks are reduced to eigenvalue problems, which are solved effi

OBJECTIVE: The purpose of this analysis was to develop a population pharmacokinetic model for a novel recombinant human follicle-stimulating hormone (FSH) (FE 999049) expressed from a human cell line of foetal retinal origin (PER.C6(®)) developed for controlled ovarian stimulation prior to assisted reproductive technologies.METHODS: Serum FSH levels were measured following a single subcutaneous FE

BACKGROUND: Vasopressin is widely used for vasopressor support in septic shock patients, but experimental evidence suggests that selective V1A agonists are superior. The initial pharmacodynamic effects, pharmacokinetics, and safety of selepressin, a novel V1A-selective vasopressin analogue, was examined in a phase IIa trial in septic shock patients.METHODS: This was a randomized, double-blind, pla