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The shielding at an accelerator-driven spallation neutron facility plays a critical role in the performance of the neutron scattering instruments, the overall safety, and the total cost of the facility. Accurate simulation of shielding components is thus key for the design of upcoming facilities, such as the European Spallation Source (ESS), currently in construction in Lund, Sweden. In this paper
The study compared adolescents who alternate residences between their divorced parents with adolescents who live with both parents or with one divorced parent. Care was scored equally for adolescents with alternating residences and for those living with both biological parents but lower for adolescents living with a single parent. Overprotection showed the converse. Presence of psychiatric symptom
The Leading Edge Vortex (LEV) is a universal mechanism enhancing lift in flying organisms. LEVs, generally illustrated as a single vortex attached to the wing throughout the downstroke, have not been studied quantitatively in freely flying insects. Previous findings are either qualitative or from flappers and tethered insects. We measure the flow above the wing of freely flying hawkmoths and find
Atrial septal defect (ASD) is the most common congenital heart malformation diagnosed in adult life. In this thesis important clinical, haemodynamic and electrophysiological aspects of ASD in the adult are explored. The diagnostic accuracy of magnetic resonance velocity mapping (MRvm)in calculating the pulmonary/systemic flow ratio (QP/QS)was assessed (I). The mean and maximal error by MRvm was 1
Dendrimers are polymers with unique properties that make them promising in a variety of applications such as potential drug and gene delivery systems. PAMAM dendrimers, in particular, have been widely investigated and are efficiently translocated into the cell. The mechanism of translocation, however, is still unknown. Recently it was proposed that PAMAM dendrimers are able to open holes in lipid
Modern, nonlinear ballistic neutron guides are an attractive concept in neutron beam delivery and instrumentation because they offer increased performance over straight or linearly tapered guides. However, like other ballistic geometries they have the potential to create significantly non-trivial instrumental resolution functions. We address the source of the most prominent optical aberration, nam
The incidence of venous thromboembolism (VTE) is more than 1%omicron annually in the general population and increases further in cancer patients. The risk of VTE is higher in multiple myeloma (MM) patients who receive thalidomide or lenalidomide, especially in combination with dexamethasone or chemotherapy. Various VTE prophylaxis strategies, such as low-molecular-Weight heparin (LMWH), warfarin o
Flow cytometry is a widespread single-cell measurement technology with a multitude of clinical and research applications. Interpretation of flow cytometry data is hard; the instrumentation is delicate and can not render absolute measurements, hence samples can only be interpreted in relation to each other while at the same time comparisons are confounded by inter-sample variation. Despite this, mo
Background: Lectures supported by theatrical performance may enhance learning and be an attractive alternative to traditional lectures. This study describes our experience with using theatre in education for medical students since 2001. Methods: The volunteer students, coached by experienced students, were given a two-week preparation period to write and prepare different dramatized headache scena
Så vad kan det innebära att skriva om ljud och ljudmiljöer? Hur förvandlas eller tolkas ett medium av ett annat? Skriftställaren, akustikern, musikforskaren, litteraturvetaren, journalisten måste alla brottas med uppgiften att skriva om ljud. Ljudmiljöcentrum samlar i denna volym ett antal skriftställares tankar om ord om ljud.Medverkande: Anders Mildner, Johan Stenström, Annika J Lindskog, Louise
A novel neutron spin-echo spectrometer with superconducting main coils enabling enclosure by a double walled mu-metal magnetic shielding chamber has been built and set into operation at the spallation neutron source in Oak Ridge. The layout of the spectrometer is described. Performance with emphasis on the superconducting main solenoids and the time-of-flight operation is described. Data on resolu
Impaired insulin secretion is a major contributor to diabetes. Obesity is a known risk factor for the development of diabetes, and prolonged exposure of pancreatic islets to lipids results in impaired insulin secretion. Insulin is released from pancreatic beta-cells as a result of Ca2+-induced exocytosis. Recent experiments have shown that chronic palmitate exposure results in the loss of localise
Aims: To analyze the changes in the prevalence of asthma, bronchial hyperresponsiveness (BHR) and allergies in elite athletes over the past years, to review the specific pathogenetic features of these conditions and to make recommendations for their diagnosis. Mehtods: The Task Force reviewed present literature by searching Medline up to November 2006 for relevant papers by the search words: asthm
The study of religion has its historical origin in the confessional education of religious functionaries, which has influenced the structuring of the study. The order of the topics studied has been, as a rule, first, languages relevant for the study of the normative texts, then the interpretation of these texts, followed by the historical development within the religion, its doctrines (systematic
Ollier disease and Maffucci syndrome are non-hereditary skeletal disorders characterized by multiple enchondromas (Ollier disease) combined with spindle cell hemangiomas (Maffucci syndrome). We report somatic heterozygous mutations in IDH1 (c.394C>T encoding an R132C substitution and c.395G>A encoding an R132H substitution) or IDH2 (c.516G>C encoding R172S) in 87% of enchondromas (benign cartilage
Many plants are adapted to an eroded landscape with a large proportion of virgin soil. Open and disturbed soils are today almost only restricted to agricultural fields with high loads of fertilizers. We conducted a pot experiment in order to investigate growth and nutritional constraints of one calcicole species, Anisantha (syn. Bromus) tectorum, and one calcifuge species, Rumex acetosella, in dec
Appropriately designing the proposal kernel of particle filters is an issue of significant importance, since a bad choice may lead to deterioration of the particle sample and, consequently, waste of computational power. In this paper we introduce a novel algorithm adaptively approximating the so-called optimal proposal kernel by a mixture of integrated curved exponential distributions with logisti
Objective: This study aimed to evaluate the outcome and predisposing factors related to perioperative bleeding in patients treated with endovascular aneurysm repair (VAR) for ruptured and non-ruptured abdominal aortic aneurysm (AAA). Design: This was a retrospective cohort study. Methods: A total of 525 consecutive patients (73% elective) with AAA underwent EVAR at two vascular centres from 2008 t
Purpose. To investigate if testicular cancer survivors (TCSs) have a higher incidence of work loss compared with the population, accounting for stage, treatment and relapse.Material and methods. A cohort of 2146 Swedish TCSs diagnosed 1995-2007 (seminoma n = 926, non-seminoma n = 1220) was identified in the SWENOTECA (Swedish-Norwegian Testicular Cancer Group) register, and matched 1:4 to populati
