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Abstract The self-driving car (SDC) is about to exit fantasy and enter reality. SDCs are expected to be available for purchase in just a few years, and the new technologies that enable autonomous driving hold much promise, regarding safety, environmental impact, increased mobility and higher comfortability. However, there are worrying prospects, too. Some experts worry that the autonomous car

In the first chapter we test if Purchasing Power Parity, PPP, is empirically valid and when that is not the case we test if productivity growth differences can account for the deviations from PPP by co-integration analysis. Interestingly, the results lend support in favour of PPP in several cases and when PPP is rejected GDP per capita growth rate differences seem to explain the long-run deviation

Most of the world's energy generation is based on fossil fuels such as coal and oil, which already today but even more in the future, will cause various problems. One issue is their limited availability, which stands in conflict to the increasing global energy consumption. Another problem is the carbon dioxide generation caused by burning fossil fuels for energy production, and is thought to be on

There are about eight thousand and five hundred of level crossings in Sweden according to Swedish Transport Administration (STA). Approximately four thousand and six hundreds of railroad crossings are arranged without any type of protection. Most of the accidents occurs when there are none protection or the amount of traffic is very low. Types of protections that are usually used in most of the le

Abstract This study tested the effect of environmental concentrations of the selective serotonin reuptake inhibitor (SSRI) sertraline on the life history of Daphnia magna and how individual-level responses could predict effects on population growth rate. Individual-level responses related to reproduction, growth and feeding were quantified in a 39-day bioassay and used in a life-table matrix. Alt

Abstract This bachelor thesis describes a survey of the use of cursing in Swedish by 42 youths in high school who have Swedish as a second language. The L2 speakers have through a questionnaire answered questions about which curse words they know, how they use them, which language they prefer to curse in and who they learnt it from. In relevant cases the group is compared with a group of similar S

The advent of PET ligands that bind tau pathology has enabled the quantification and visualization of tau pathology in aging and in Alzheimer disease (AD). There is strong evidence from neuropathologic studies that the most widely used tau PET tracers (i.e., 18F-flortaucipir, 18F-MK6240, 18F-RO948, and 18F-PI2620) bind tau aggregates formed in AD in the more advanced (i.e., ≥IV) Braak stages. Howe

Purpose: Artifacts impacting the imaged tumor volume can be seen in conventional three-dimensional CT (3DCT) scans for planning of lung cancer radiotherapy but can be reduced with the use of respiration-correlated imaging, i.e., 4DCT or breathhold CT (BHCT) scans. The aim of this study was to compare delineated gross tumor volume (GTV) sizes in 3DCT, 4DCT, and BHCT scans of patients with lung tumo

Perovskite solar cells have rapidly been developed over the past several years. Choice of the most suitable solar cell structure is crucial to improve the performance further. Here, we attempt to determine an optimum cell structure for methylammonium lead iodide (MAPbI3) perovskite sandwiched by "2 and spiro-OMeTAD layers, among planar heterojunction, mesoporous structure, and extremely thin absor

The simultaneous adsorption of copper (Cu), cadmium (Cd), nickel (Ni), and lead (Pb) ions from spiked deionized water and spiked leachate onto natural materials (peat A and B), by-product or waste materials (carbon-containing ash, paper pellets, pine bark, and semi-coke), and synthetic materials (based on urea-formaldehyde resins, called blue and red adsorbents) or mixtures thereof was investigate

IntroductionCardiac surgery is required in up to half of the patients with infective endocarditis (IE). Positive valve cultures have been associated with higher in-hospital mortality. The aims were to identify risk factors for positive valve cultures and its relation to outcome.MethodsPatients subjected to heart valve cultures due to surgery for IE in Skåne University Hospital, Lund, between 2012

Introduction: Carbon monoxide (CO) is a colorless and odorless gas that is a leading cause of environmental poisoning in the USA with substantial mortality and morbidity. The mechanism of CO poisoning is complex and includes hypoxia, inflammation, and leukocyte sequestration in brain microvessel segments leading to increased reactive oxygen species. Another important pathway is the effects of CO o

This article analyses infant and child sex ratios in late Imperial Russia relying on district-level information obtained from the 1897 Russian census (489 districts). The article shows that child sex ratios were, on average, relatively low (around 98 boys per hundred girls) due to the biological female advantage: the extremely high infant and child mortality rates took a greater toll on boys and p

Consider the subspace Wn of L2(C, dA) consisting of all weighted polynomials W(z)=P(z)·e-12nQ(z), where P(z) is a holomorphic polynomial of degree at most n- 1 , Q(z) = Q(z, z¯) is a fixed, real-valued function called the “external potential”, and dA=12πidz¯∧dz is normalized Lebesgue measure in the complex plane C. We study large n asymptotics for the reproducing kernel Kn(z, w) of Wn; this depend

Stem cells are key to human tissue maintenance. Because tissue maintenance allows us to live and reproduce, stem cell control is fundamental for animal life and evolution. A team of researchers set out to explore the origins of transcription factors at the core of the induction and the maintenance of stemnss. They focus on the conservation of the Sry-related box 2 (Sox2) and the octamer-binding tr

BACKGROUND AND PURPOSE: Treatment of cancer with immune checkpoint inhibitors (ICIs) entails a risk of immune-related adverse events (irAEs). Data on the treatment of immune-related enterocolitis (irEC) in patients with inadequate symptom control after treatment with standard therapy including corticosteroids, infliximab, and vedolizumab are scarce. Based on limited data, recommendations include t