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Radiographers’ perspectives’ on Visual Grading Analysis as a scientific method to evaluate image quality

Introduction: Radiographers routinely undertake many initiatives to balance image quality with radiation dose (optimisation). For optimisation studies to be successful image quality needs to be carefully evaluated. Purpose was to 1) discuss the strengths and limitations of a Visual Grading Analysis (VGA) method for image quality evaluation and 2) to outline the method from a radiographer's perspec

Animal Signals : Dirty Dancing in the Dark?

The use of highly visible body colours as signals during courtship is well known from animals active in brighter light. Now a sexually dimorphic colouration signal has been discovered in a nocturnal moth, suggesting that visual courtship rituals might even occur at night.

Incidence of Intraocular Lens Exchange after Cataract Surgery

Intraocular lens (IOL) exchange after cataract surgery is unusual but may be associated with suboptimal visual outcome. The incidence of IOL exchange has not been consistently estimated. Such information is invaluable when counseling patients prior to cataract surgery. We examined the incidence of, and indications and risk factors for, IOL exchange after cataract surgery. We also assessed visual o

Stable population-based incidence of acute type A and B aortic dissection

Background. Aortic dissection (AD) and abdominal aortic aneurysm (AAA) share the same risk factors. Whereas the incidence of AAA is falling, it is unclear whether population-based incidences of acute type A and B AD have changed. The aim of this study was to investigate incidences of AD subtypes over time. Methods. Citizens in the municipality of Malmö, Sweden, diagnosed with AD in 2000–2004 and 2

Trembling in Fear and Passion : Kierkegaard's Leap of Faith as a Source of the Sublime

This essay investigates how Søren Kierkegaard’s leap of faith can be viewed as a sublime esthetic experience along the lines of the theories of Longinus and Edmund Burke. In Kierkegaard leaps of faith incorporate feelings of terror and passion. Grounded in notions of eternity and truth, they create occasions for particular kinds of sublime experiences. To Kierkegaard the leap of faith is the step

An exploratory study of verbal interaction between children with different profiles of DLD and their classroom teachers in educational dialogues

Children with a history of developmental language disorder (DLD) entering school are a challenge for classroom teachers. Teachers are often not very familiar with DLD, and language difficulties in school age children are often not obvious in context-supported everyday language. However, their language is still vulnerable. The teachers’ way of talking with four children with DLD, two with predomina

Priors and Posteriors in Bayesian Timing of Divergence Analyses : The Age of Butterflies Revisited

The need for robust estimates of times of divergence is essential for downstream analyses, yet assessing this robustness is still rare. We generated a time-calibrated genus-level phylogeny of butterflies (Papilionoidea), including 994 taxa, up to 10 gene fragments and an unprecedented set of 12 fossils and 10 host-plant node calibration points. We compared marginal priors and posterior distributio

Methods for identifying aged ship plumes and estimating contribution to aerosol exposure downwind of shipping lanes

Ship traffic is a major source of aerosol particles, particularly near shipping lanes and harbours. In order to estimate the contribution to exposure downwind of a shipping lane, it is important to be able to measure the ship emission contribution at various distances from the source. We report on measurements of atmospheric particles 7-20 km downwind of a shipping lane in the Baltic Se

Adsorption of unfolded Cu/Zn superoxide dismutase onto hydrophobic surfaces catalyzes its formation of amyloid fibrils

Intracellular aggregates of superoxide dismutase 1 (SOD1) are associated with amyotrophic lateral sclerosis. In vivo, aggregation occurs in a complex and dense molecular environment with chemically heterogeneous surfaces. To investigate how SOD1 fibril formation is affected by surfaces, we used an in vitro model system enabling us to vary the molecular features of both SOD1 and the surfaces, as weIntracellular aggregates of superoxide dismutase 1 (SOD1) are associated with amyotrophic lateral sclerosis. In vivo, aggregation occurs in a complex and dense molecular environment with chemically heterogeneous surfaces. To investigate how SOD1 fibril formation is affected by surfaces, we used an in vitro model system enabling us to vary the molecular features of both SOD1 and the surfaces, as we

The spatial properties of forager motion categories : Evidence from Jahai

There is a growing appreciation of the need and urgency to study and document mobility and energetics among extant hunter-gatherers. An increasing number of studies investigate the spatial and biophysical properties of hunter-gatherer movement, in order to gain a deeper understanding of such things as human energy expenditure and efficiency in human foraging behavior. So far, however, this researc

Heterogeneity of islet pathology in two infants with recent onset diabetes mellitus

The mechanisms by which the beta cells of pancreatic islets are destroyed in insulin-dependent diabetes mellitus (IDDM) are poorly understood. In this report the pancreatic histo- and immunopathology of two children, both HLA-DR 3/4, DQ 2/8 positive and who both died from cerebral oedema within a day of clinical diagnosis of IDDM, were investigated. Patient 1, a 14-month-old girl, had a 4-week his

Antibodies to a Mr-64000 islet cell protein in Swedish children with newly diagnosed Type 1 (insulin-dependent) diabetes

Sera from 40 Swedish children diagnosed as having Type 1 (insulin-dependent) diabetes mellitus during a one year period along with 40 age and geographically matched control subjects were tested for antibodies to a Mr-64000 islet protein by immunoprecipitation of 35S-methionine-labelled rat islet amphiphilic proteins. Of the 40 diabetic patients, 29 (73%) were found to be positive whereas all 40 co

Neurochemical Correlates to Selective Neuronal Vulnerability

This chapter describes some of the special neurochemical features of the areas of the brain selectively vulnerable to ischemic and hypoglycemic insults. The chapter focuses on the neuronal connections to the vulnerable brain areas, on the distribution of receptors and transmitter content in the vulnerable areas, and on some current hypothesis of neuronal damage. Emphasis will be placed on a possib