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Context. SDSS-IV APOGEE-2, GALAH, and Gaia-ESO are high-resolution, ground-based, multi-object spectroscopic surveys providing fundamental stellar atmospheric parameters and multiple elemental abundance ratios for hundreds of thousands of stars of the Milky Way. Data from these and other surveys contribute to investigations of the history and evolution of the Galaxy. Aims. We undertake a compariso
This thesis focuses on processing and electro-optical investigations of two- and three-terminal photodetectors based on large arrays of around three million n+-i-n+ InP nanowires with embedded InAsP quantum heterostructures for broadband detection. First, we investigated the optoelectronic behavior of two-terminal photodetectors under selective 980 nm excitation of the 20 axially embedded InAsP qu
Introduction: In spite of societal efforts to strengthen women's sexual and reproductive health in Sweden, many women have unmet contraceptive needs and the abortion rate remains high. The aim of this study was to investigate contraceptive use among abortion-seeking women. Material and methods: Swedish-speaking women seeking an induced abortion up to the end of gestational week 12 at seven hospita
Purpose: To evaluate the validity and the reliability of the Oura Ring Generation 3 (Gen3) with Oura Sleep Staging Algorithm 2.0 (OSSA 2.0) through multi-night polysomnography (PSG). Participants and methods: Participants were 96 generally healthy Japanese men and women aged between 20 and 70 years contributing with 421,045 30-s epochs. Sleep scoring was performed according to American Academy of
Introduction School-aged children become a highly vulnerable group for malaria, yet they are less likely to use malaria prevention interventions. Previous studies exploring perception on cause of malaria mainly focused on pregnant mothers or parents of children under age five years. Exploring parent's perception on cause of malaria and their experiences on the prevention of malaria and associated
Introduction: Percutaneous ultrasound-guided core needle biopsy is a well-established method in the diagnosis of musculoskeletal tumors. It is unclear which factors contribute the most to a successful biopsy. The aim of the study was to determine the value of ultrasound-guided core needle biopsy of solid lesions in the musculoskeletal system using a 16-gauge needle. Material and methods: A retrosp
The small body of research on writing and writing processes in the group of deaf and hard of hearing (DHH) children has shown that this group struggles more with writing than their hearing peers. This article aims to explore in what ways the DHH group differs from their peers regarding the written product and the writing processes. Participants are all in the age span 10–12 years old and include:
Popular Abstract in Swedish I naturen finns en närmast oändlig variation av biologiska partiklar i storleksordningen 100 nanometer till 10 mikrometer. Bland dessa kan man bland annat finna; eukaryota celler som genom ordnad samverkan bygger upp flercelliga organismer, prokaryota celler vilka lever som solitära organismer såsom olika bakterier eller jästsvamp, och viruspartiklar vilka likt parasiteHerein a method that uses acoustically resonating glass capillaries and enables non-contact capture of micron-sized bioparticles, i.e. acoustic trapping, is described. A miniaturized ultrasonic transducer is used to locally actuate a cross-sectional resonance in the capillary. A 2000×200 µm2 capillary is typically operated around a resonance frequency of 4-MHz. Optimal design of the transducer for
In this thesis, the electronic structure and optical properties of semiconductor nanostructures are studied theoretically. Three types of nanostructures have been studied, silicon nanocrystals, free-standing III-V nanowires and free-standing GaAs/AlGaAs nanowire superlattices. The calculations have been carried out using an atomistic, empirical tight-binding approach. Silicon nanocrystals have at
The purpose of this study is to describe how the energy efficiency and greenhouse gas (GHG) benefits of ethanol depend on local conditions and calculation methods. The following four parameters have been identified as crucial to the GHG benefits of ethanol: (i) energy efficiency and emissions of nitrous oxide during cultivation, (ii) what kind of fuel is used in ethanol plants, (iii) how efficient
During the last several decades, improvements in diagnostic skills and in the treatment of children with cancer have substantially increased the number of long term survivors of childhood cancer. Treatment of children with cytostatic drugs is known to create a range of late adverse effects. Among these are damage to certain structures of the inner ear and hearing impairment. In children, a hearing
This paper presents two circuits, a complete 1.5 V 28 GHz SiGe beam steering PLL and a standalone 28 GHz QVCO with I/Q phase imbalance detection and compensation. The circuits were designed in a SiGe process with f T = 200 GHz. The PLL is intended to be used for beam steering in an 81–86 GHz E-band transmitter. Phase control is implemented by DC current injection at the output of a Gilbert archite
Objective To assess the accuracy and reproducibility of ultrasound 'pattern recognition' for the diagnosis of borderline ovarian tumors by asking experienced ultrasound operators to evaluate representative images of different types of adnexal tumor. Methods Digitally stored static two-dimensional B-mode images of representative cases of benign, borderline and invasive malignant ovarian tumors were
Background: Patient-reported outcome (PRO) instruments are used in all medical disciplines to evaluate patients with different diseases and also to follow results after treatments such as surgery. Currently there is no generally accepted and fully validated PRO instrument for the foot and ankle. Aims: To translate the New Zealand Ankle Questionnaire into a Swedish version, [the Self-Reported Foot
The aims of this work were to evaluate objective and subjective signs of autonomic dysfunction (AD) in patients with primary Sjögren’s syndrome (pSS) and to evaluate its clinical associations. In study I, 46 pSS patients and 56/80/238 autonomic nervous function test (ANT) controls participated. Objective signs of AD were evaluated using three different cardiovascular ANTs and exocrine function in
Personal assistance - A qualitative study of the significance of the reform In 1994, a new law, Act Concerning Support and Service for Persons with Certain Functional Impairments (LSS) was implemented as a part of the Swedish welfare system. The purpose of the law is to assure safety for people in one of three target groups that are further defined in 1 §, LSS. The law gives people in these targe
Problem statement This thesis work was initiated since there are problems with the navigation devices currently used by SEMC, Sony Ericsson Mobile Communications AB. The problems with the currently used navigation devices are lack of ability to keep dust out and they don’t meet the demands from future applications like scrolling through large amounts of data, image editing and advanced web browsin
During the second half of the 20th century, more possibilities of singing Psalms in the common Sunday service arose in Church of Sweden. The aim of this study is to see in what different ways the Psalms are usually sung and where they appear in the different worship books. I am interested in how this has changed over time, from the 1940s until today. A special focus is also on church musicians and
Big Data has experienced recent developments in the field of Business Intelligence and has captured the increasing interest of enterprises who are trying to seize its potential. More and more companies, operating in industries ranging from insurance to the entertainment industry, are moving forward with the adoption of Big Data, in an attempt to gain significant benefits, such as customer insight,
Models for dynamic simulation of a parabolic trough concentrating solar power plant were developed in Modelica for the simulation software Dymola. The parabolic trough power plant has a two-‐tank indirect thermal storage with solar salt for the ability to dispatch electric power later in the evening and during the night when little or no solar irradiation is present. The complete system consists
