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By counting the number of upcrossings of the mean level by a stationary Gaussian process one can estimate the mean frequency of the process. Here we present a frequency estimator based on the number of upcrossings of one unknown level hoped to be near the mean, and the percentage of the total observation time spent above the level. This is equivalent to observing upcrossings of a known level in a
Abstract in Undetermined Based on energy conservation, an optical theorem is constructed for a slab having an arbitrary periodic microstructure in a plane. A sum rule for low pass structures is derived using analytic properties of Herglotz functions based on causality and passivity. The sum rule relates the total cross section to the static polarizability per unit cell, and quantifies the interactBased on energy conservation, an optical theorem is constructed for a slab having an arbitrary periodic microstructure in a plane. A sum rule for low pass structures is derived using analytic properties of Herglotz functions based on causality and passivity. The sum rule relates the total cross section to the static polarizability per unit cell, and quantifies the interaction between the slab and
OBJECTIVES: /st> Because standard immunosuppressive treatment for antineutrophil cytoplasm antibody-associated vasculitis (AAV) (granulomatosis with polyangiitis (Wegener's) (GPA) and microscopic polyangiitis (MPA)) has been associated with a significant risk of developing cancer, the cancer incidence of treated AAV patients was assessed. METHODS: /st> This analysis concerned 535 patients with new
In multiple-access communication systems several users share the system resources, thus creating co-channel interference to each other. Multiuser detection, applied at the receiver side, is a powerful technique to combat co-channel interference, in contrast to single-user approaches that treat the interference as additive noise. In this paper, we investigate the feasibility of achieving increased
Vault particles are conserved organelles implicated in multidrug resistance and intracellular transport. They contain three different proteins and non-coding vault RNAs (vRNAs). Here we show that human vRNAs produce several small RNAs (svRNAs) by mechanisms different from those in the canonical microRNA (miRNA) pathway. At least one of these svRNAs, svRNAb, associates with Argonaute proteins to gu
Context: Obesity is a frequent manifestation of hypothalamic damage from a craniopharyngioma (CP). It is not yet clarified whether the obesity is due to alterations in energy expenditure, i.e. basal metabolic rate (BMR) and physical activity, or to increased energy intake (EI). Objective: The aim was to investigate whether energy expenditure and EI differed between childhood onset CP patients and
An analytic approach for the estimation of the phase and amplitude imbalances caused by component mismatches and parasitic magnetic fields in two popular quadrature LC oscillators is presented. Very simple and closed-form equations are derived, proving that, although the two topologies share the same small signal circuit, they display very different sensitivities to the mentioned sources of imbala
Abstract Purpose – The aim of this paper is to examine the relationship between corporate branding and market driving. This is achieved by focusing on key dimensions of brand identity such as brand values and staff behaviours, while acknowledging the role of vision and organisational culture. The links between these brand constituents and the actual activities of the firm in a market are explored
The thesis should be regarded as a contribution to the development of knowledge about the interaction taking place in the educational setting for pupils with PIMD in Sweden, the training school (Sw. Träningsskola), and the contextual and interactional conditions that characterizes this educational setting. The study is expected to contribute to a deeper understanding of the pedagogical praxis in t
Review of Lars Ersgård (ed), “Modernitet och arkeologi" (Stockholm 2007).
Objective. To describe fecundity after robot-assisted laparoscopic myomectomy for deep intramural myomas. Design. Prospective observational study. Setting. University Hospital. Population. Women undergoing robot-assisted laparoscopic myomectomy. Methods. Expanding on a previous prospective feasibility study 31 consecutive women in whom a robot-assisted laparoscopic myomectomy was performed between
The number and costs associated with reported sharps injuries in Swedish hospitals and the potential cost offset by introducing safety devices with needle and syringe was estimated from a health care perspective. Data about reported sharps injuries were collected from infection control nurses at 18 Swedish hospitals and information about the procedures following such injuries from doctors at Swedi
Recent developments have allowed x-ray diffraction techniques at synchrotron radiation facilities to be employed with a temporal resolution of around 1 ps. These developments are the availability of firstly, high brightness third-generation x-ray sources, secondly, passively mode-locked lasers with 100 fs temporal duration and thirdly, averaging streak cameras with sub-picosecond temporal resoluti
To determine intra- and interobserver reliability of the appearance and measurements of Cesarean hysterotomy scars using transvaginal ultrasound with and without saline contrast sonohysterography (SCSH) in non-pregnant women.
