Sökresultat

Water scarcity is a consequence of complex interactions between water access and water use. In fact, the time period over which precipitation deficit accumulates is a determing factor for the occurrence of drought. Drought induces crop production losses and far-reaching societal effects. In the South American Altiplano, drought is a major hazard. Here, drought leads to food shortages, malnutrition

We discuss some aspects of the current status of event generators for small-x DIS. In particular we report on recent results using the CCFM evolution implemented in the SMALLX and CASCADE program concerning the importance of the so-called consistency constraint, and compare with the linked dipole chain model implemented in the LDC program. We point out some potential problems with the resolved vir

Bone area is one measure of bone size that is easily derived from dual-energy X-ray absorptiometry (DXA) scans. In a GWA study of DXA bone area of the hip and lumbar spine (N ≥ 28,954), we find thirteen independent association signals at twelve loci that replicate in samples of European and East Asian descent (N = 13,608 – 21,277). Eight DX

Nanowires are promising structures for improving light absorption due to their enhanced optical properties compared to bulk materials. Silicon is a suitable semiconducting material for driving water splitting in a photoelectrochemical (PEC) cell, and is particularly attractive due to its small bandgap as well as its relative abundance and low cost. PEC cells can be enhanced by including silicon na

Purpose: To understand the key principles that enable brands to construct long-term marketing campaigns, helping communicate, maintain, and build brand identity. Design/Methodology: This study uses a case study approach by conducting content analysis of Dove’s 20-year self-esteem campaign. The analysis is supplemented by a qualitative survey of Dove’s Nordic brand management team in order to conte

This thesis critically examines the Global Digital Compact (GDC), a United Nations initiative addressing global digital disparities and fostering equitable digital governance. Using postcolonial theory and Critical Discourse Analysis (CDA), it explores the GDC’s language, power dynamics, and stakeholder representation. The study reveals that the GDC mirrors colonial dependency patterns, with the G

SAAB Dynamics produces and develops warheads and uses computer simulations to evaluate its products. Recently, SAAB has begun using neural networks to quickly obtain accurate outputs, based on simulated data, from a set of input variables with success. This thesis investigated whether interim data in the form of video frames can improve the output of the network. This thesis investigated the use o

The purpose of this thesis is to explore the motivations of young people for manifesting their consumption behavior through Instagram stories. Additionally, the purpose includes gaining an understanding of the way consumption behavior is portrayed.

The QR decomposition is used to solve least squares problems, systems of equations and other important linear algebra tasks. We consider the computation of the QR decomposition for tall-skinny matrices, using the Cholesky decomposition as an intermediate step. To improve efficiency, we introduce randomised numerical linear algebra and sketching as a tool for improving computational efficiency. Num

This thesis investigates superconductivity in novel planar Josephson junctions fabricated from a hybrid Al/EuS/2DEG (InGaAs/InAs/InGaAs) heterostructure. Using electron-beam lithography, selective etching, and atomic layer deposition, Josephson junction devices, constrictions, and SQUID geometries were fabricated and a selection of the devices were characterized at millikelvin temperatures. The me

In Sweden, climate projections indicate longer growing seasons with more frequent extreme weather events, such as droughts and heavy rainfall, posing significant challenges to existing crop systems. Simultaneously, the sector is under growing pressure to reduce its environmental footprint, especially in response to agricultural nutrients runoff contributing to the eutrophication of the Baltic Sea.

The number of devices connected to the Internet is rapidly increasing. Especially the number of Internet of Things devices. These devices contain software which, like any other software, needs to be updated. With the great amount of devices to update, this calls for a manageable updating solution which does not depend on user interaction. In this thesis we present a solution to dynamically update

The aim of this study was to optimize a function starch-ethyl cellulose film for targeting the therapeutically active substance to the colon in the disease state for patients suffering from inflammatory bowel diseases. This study includes: • The preparation of the polymeric films and the investigation of the characterization (for example mechanical properties, water uptake, dry mass loss, and mic

Sweden has seen an increased number of homeless EU citizens over the last years. There is no consensus among Swedish municipalities on how to handle the issue of housing for vulnerable EU citizens. The purpose of this thesis is to examine the right to housing and why vulnerable EU citizens cannot access the right. The issue is studied on three levels – human rights law, EU law and domestic Swedish

This study examines the impact of sky-bridges, as an egress component, on total evacuation of a high-rise building by using an evacuation model named Pathfinder. Five scenarios, with different combination of aspects such as height of the building, number of sky-bridges (and the subsequent inter-distance between them), and people allocation have been simulated. The comparison between the results fr

Sensing temperature is important for identifying preferable temperatures and avoiding dangerous extremes. The cold pain limit of mammals in general is estimated to approximately 12 °C. I reasoned that such a skin temperature is unlikely to be sustainable in colder climates and studied cold-adapted dogs in northern Sweden using thermography. Skin temperature on the rhinarium (naked nose tip) was 2.

We performed a genome-wide association study of total hip replacements, based on variants identified through whole-genome sequencing, which included 4,657 Icelandic patients and 207,514 population controls. We discovered two rare signals that strongly associate with osteoarthritis total hip replacement: a missense variant, c.1141G>C (p.Asp369His), in the COMP gene (allelic frequency = 0.026%, P =

Fixed-target experiments using primary electron beams can be powerful discovery tools for light dark matter in the sub-GeV mass range. The Light Dark Matter eXperiment (LDMX) is designed to measure missing momentum in high-rate electron fixed-target reactions with beam energies of 4 GeV to 16 GeV. A prerequisite for achieving several important sensitivity milestones is the capability to efficientl

BACKGROUND: Problem behaviours are common among people with intellectual disabilities (ID), but psychometrically evaluated instruments for assessing such behaviours are scarce. The present study evaluated the psychometric properties of the Neuropsychiatric Inventory-Intellectual Disability (NPI-ID).METHOD: We assessed 108 residents with intellectual disabilities living in group-homes using the NPI