Filetype
Modern treatment planning systems (TPSs) usually separate the dose modelling into a beam modelling phase, describing the beam exiting the accelerator, followed by a subsequent dose calculation in the patient. The aim of this work is to use the Monte Carlo code system EGSnrc to study the modelling of head scatter as well as the transmission through multi-leaf collimator (MLC) and diaphragms in the
Objective: The purpose of the study was to compare in prospective randomized fashion a manually sutured esophagogastric anastomosis in the neck and a stapled in the chest after esophageal resection and gastric tube reconstruction. Summary Background Data: Despite the fact that all reconstructions after esophagectomy will result in a cervical or a thoracic anastomosis, controversy still exists as t
The Atlantic auk assemblage includes four extant species, razorbill (Alca torda), dovekie (Alle alle), common murre (Uria aalge), and thick-billed murre (U. lomvia), and one recently extinct species, the flightless great auk (Pinguinus impennis). To determine the phylogenetic relationships among the species, a contiguous 4.2-kb region of the mitochondrial genome from the extant species was amplifi
Universities are currently facing mounting policy expectations to assume a broader societal responsibility in creating sustainable growth and wellbeing. In response to these demands, universities are developing new approaches to proactively take on their role with societal collaboration, including project-based education, student innovation programmes, open testbed and demonstration facilities andUniversities are currently facing mounting policy expectations to assume a broader societal responsi-bility in creating sustainable growth and wellbeing. In response to these demands, universities are developing new approaches to proactively take on their role with societal collaboration, including project-based education, student innovation programmes, open testbed and demonstration facilities an
Although sexual selection and sexual conflict are important evolutionary forces in animals, their significance in plants is uncertain. In hermaphroditic organisms, such as many plants, sexual conflict may occur both between mating partners (interlocus conflict) and between male and female sex roles within an individual (intralocus conflict). We performed experimental evolution, involving lines tha
Whole-genome sequencing projects are increasingly populating the tree of life and characterizing biodiversity1–4. Sparse taxon sampling has previously been proposed to confound phylogenetic inference5, and captures only a fraction of the genomic diversity. Here we report a substantial step towards the dense representation of avian phylogenetic and molecular diversity, by analysing 363 genomes from
We report the development of nanowire field-effect transistors featuring an ultrathin parylene film as a polymer gate insulator. The room temperature, gas-phase deposition of parylene is an attractive alternative to oxide insulators prepared at high temperatures using atomic layer deposition. We discuss our custom-built parylene deposition system, which is designed for reliable and controlled depo
Abstract: The composition of the major storage protein, hordein, in wild barley species has been studied by using gel electrophoresis, Coomassie staining, and immunoblot assays. We have shown earlier that it is possible to obtain cross-reaction outside the cultivated barley, with monoclonal antibodies raised against hordeins from the barley cultivar Bomi. These antibodies have now been used to inv
When low calorific value gases are fired, the performance and stability of gas turbines may deteriorate due to a large amount of inertballast and changes in working fluid properties. Since it is rather rare to have custom-built gas turbines for low lower heating value (LHV) operation, the engine will be forced to operate outside its design envelope. This, in turn, poses limitations to usable fuel
Robust fitting of geometric models is a core problem in computer vision. The most common approach is to use a hypothesize-and-test framework, such as RANSAC. In these frameworks the model is estimated from as few measurements as possible, which minimizes the risk of selecting corrupted measurements. These estimation problems are called minimal problems, and they can often be formulated as systems
Background: High-throughput sequencing often provides a foundation for experimental analyses in the life sciences. For many such methods, an intermediate layer of bioinformatics data analysis is the genomic signal track constructed by short read mapping to a particular genome assembly. There are many software tools to visualize genomic tracks in a web browser or with a stand-alone graphical user i
We will present the formation of nanoparticle chains by deposit magnetic iron oxide aerosol nanoparticles in a combined electric and magnetic field. Aerosol methods, in particular spark ablation, provides a good means to produce magnetic nanoparticles with a controllable size and concentration in a broad size range without agglomeration. These aerosol nanoparticles are usually deposited using an e
The results of a search for the direct pair production of top squarks, the supersymmetric partner of the top quark, in final states with one isolated electron or muon, several energetic jets, and missing transverse momentum are reported. The analysis also targets spin-0 mediator models, where the mediator decays into a pair of dark-matter particles and is produced in association with a pair of top
In the political and medial discourse of the 1930s the contract-work system (stat/ar/ systemet) was depicted as a relic of pre-modern society and contract-workers (statare) as the highly exploited lower class with no legal rights, low incomes, miserable housing conditions and a chaotic family life. This picture has dominated Swedish social history ever since, and the main argument of this article
Purpose: To determine if mutations in the retinal transcription factor gene NRL are associated with retinopathies other than autosomal dominant retinitis pigmentosa (adRP). Methods: Genomic DNA was isolated from blood samples obtained from 50 patients with Leber Congenital Amaurosis (LCA), 17 patients with the Enhanced S-Cone Syndrome (ESCS), and a patient with an atypical retinal degeneration tha
Representative democracy is the most fast growing political system in the world. The politician, however, plays various roles within his representative assignment. This paper shows that there are divergence between the representatives’ normative position and her political actions. The aim of this study is to understand what representation is and what we can expect from the representative. The main
There are laws that prohibit ships from discharging solid waste into the Mediterranean Sea. However, it’s estimated that between 15-35% of all plastic found in the Mediterranean comes from merchant shipping. Economic incentives are important to make ships reduce their maritime litter, and this essay will assess economic policies to prevent further pollution. France and Spain have different systems
The goal of this project was to design a tool that facilitates the work with and handling of horses in Scandinavia. After reading some literature and making visits to three different horse related businesses the choice were made to look at natural horsemanship. The goal of natural horsemanship is based on mutual respect, trust, communication and understanding. The idea is that you want to give th
The objective of this paper is to find out whether economic circumstances can have an impact on the level of risk aversion using a sample of data from the Netherlands. The testing strategy is based on the DNB Household Survey, which is issued by CentERdata. Launched in 1993, this database contains panel data up until the year 2011. Using such data allows for the study of psychological as well as e
