Filetype
given depth, including submerged macrophytes and associated invertebrates. The sampler is a tong-shaped instrument consisting of two metal rods connected by a flexible joint. At the end of each arm is a metal cylinder (diameter 10 cm); one end of the cylinder has a sharpened edge and the other is equipped with a net. Powerful metal springs force the cylinders together at high speed, and macrophyte
The purpose of this paper is to present a regulator for control of the continuous-sedimentation process in a clarifier–thickener unit when this is modelled in one space dimension and when the settling properties of the solids obey Kynch’s assumption. The model is a scalar hyperbolic conservation law with space-discontinuous flux function and point source. The most desired type of solution contains
Background: Patients with hypertrophic cardiomyopathy (HCM) have a high incidence of atrial fibrillation. They also have a longer P-wave duration than healthy controls, indicating conduction alterations. Previous studies have demonstrated orthogonal P-wave morphology alterations in patients with paroxysmal atrial fibrillation. In the present study, the P-wave morphology of patients with HCM was co
Objective The aim of this analysis was to delineate perceived associations between androgens and cardiovascular events in perimenopausal women. Design A cross-sectional, population-based study of 6440 perimenopausal women aged 50-59 years, living in Southern Sweden. In all, 461 (7.1%) women were premenopausal (PM), 3328 (51.7%) postmenopausal without hormone therapy (HT) (PMO) and 2651 (41.2%) pos
Background Rare cancers are a challenge to clinical practice, and treatment experience, even in major cancer centres to which rare cancers are usually referred, is often limited. We aimed to study the epidemiology of rare cancers in a large population of several countries. Methods We analysed survival by age, sex, subsite, and morphology in 57 144 adults with 14 selected rare cancers diagnosed 198
Background The European Randomized Study of Screening for Prostate Cancer was initiated in the early 1990s to evaluate the effect of screening with prostate-specific-antigen (PSA) testing on death rates from prostate cancer. Methods We identified 182,000 men between the ages of 50 and 74 years through registries in seven European countries for inclusion in our study. The men were randomly assigned
We present a detailed study of the electronic structure and the stability of C-60 dianions in the gas phase. Monoanions were extracted from a plasma source and converted to dianions by electron transfer in a Na vapor cell. The dianions were then stored in an electrostatic ring, and their near-infrared absorption spectrum was measured by observation of laser induced electron detachment. From the ti
The aim of the present study was to explore how a personal narrative told by a group of eight persons with aphasia differed between written and spoken language, and to compare this with findings from 10 participants in a reference group. The stories were analysed through holistic assessments made by 60 participants without experience of aphasia and through measurement of lexical and syntactic vari
A study of the performance of five commercial radiotherapy treatment planning systems ( TPSs) for common treatment sites regarding their ability to model heterogeneities and scattered photons has been performed. The comparison was based on CT information for prostate, head and neck, breast and lung cancer cases. The TPSs were installed locally at different institutions and commissioned for clinica
The project was performed for FAS Converting Machinery AB (FAS) in Ystad with supervision from Industriell Elektroteknik och Automation at LTH. FAS is a company that makes machines for producing plastic bags on a roll. The problem given was to develop a sensor for detecting the perforations in the bags to ensure that the correct amount of bags was rolled up and that the tearing was in the right pl
Flygprestanda AB supplies IT services for airline operations, management and control. The system delivered to facilitate this is the Flight Operation Control System or FOCS. This thesis addresses the Schedule View service included in the FOCS system. The Schedule View is a tool where the user gets an overview of aircrafts and planned flights. In addition aircrafts and flights can be added and modi
Building interaction prototypes for ubiquitous computing is inherently difficult, since it involves a number of different devices and systems. Prototyping is an important step in developing and evaluating interaction concepts. The ideal prototyping methodology should offer high fidelity at a relatively low cost. This thesis describes the development of interaction concepts for controlling consume
This thesis describes the development of a new h-adaptive method for shell elements in the explicit FE-code LS-DYNA. Adaptivity is used to obtain accurate results for large deformation analyses to a low computational effort. However, the present adaptive method available in LS-DYNA is based on a geometrical simplification. When the mesh is refined, the bending deformation of the shell is not consi
Monazit är ett Ree– och Th-bärande fosfatmineral som förekommer i vissa magmatiska och metamorfa bergarter. Mineralet är användbart för datering av den metamorfa utvecklingen och kan bidra till att yt-terligare karaktärisera metamorfosen i en bergart, detta genom att man undersöker zoneringar i kristallerna. Mo-nazit har upptäckts i metasediment i Stensjöstrand och tunnslip har gjorts ifrån proverMonazite is a Th-bearing REE phosphate mineral which is present in some igneous and metamorphic rocks. It is a useful mineral for determination of the metamorphic history and age of its host rock because clues to past mineral reactions can be seen in trace element zoning. Monazite has been found in metasediments in Sten-sjöstrand and thin sections have been made from rock samples to study the mine
