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PowerPoint-presentation ANVÄNDARTESTNING VID LULEÅ UB Ola Andersson Luleå universitetsbibliotek 2017-11-08 ANVÄNDARTESTNING UPPSTART  Olika metoder för att testa användbarheten – Expertutvärdering -En utvärdering som utförs av ett antal experter inom området. De går enskilt igenom webbplatsen för att senare diskutera resultaten med de andra utvärderarna. – Användartestning -Faktiska användare får

https://www.ub.lu.se/sites/ub.lu.se/files/ola_andersson_anvandartestning_vid_lulea_ub.pdf - 2026-06-30

The present work was aimed at developing industrial S. cerevisiae strains with improved tolerance to two types of stressors encountered during the fermentation of lignocellulosic biomass that affect ethanol yield and productivity, namely hydrolysate-derived inhibitors and high temperature, and at understanding the response of yeast and mechanisms of adaptation to such stressors. In one part of the

In this thesis we explore two-dimensional water waves with zero gravity. Zero gravity waves were only recently given a rigorous study in recent papers, by Hur and Wheeler, and by Gonçalves Jorge Dias de Carvalho. The assumption of zero gravity simplifies many aspects of the problem, while making some more complex. We study the properties of these waves, and seek to lay some groundwork for further

The transition from InterBank Offered Rates (IBORs) to Risk-Free Rates (RFRs) represents one of the most significant shifts in modern financial markets. This transition addresses concerns about the reliability and transparency of IBORs by adopting benchmarks based on actual market transactions. However, this change has far-reaching implications for the valuation of complex financial instruments, s

För att kunna begränsa brandspridningen och bidra till brandskyddet delas en byggnad oftast in i brandceller. För att vid utrymning kunna ta sig till en säker plats kommer personerna som försöker ta sig ut troligtvis passera genom en öppning i brandcellsgräns. För att kunna bibehålla brandcellsgränsen trots användande av dörrar, fönster och andra öppningar finns det vissa krav på utformning av desIn most of the studies that are made for pedestrian flow through doors, reaserchers have just looked at the flow through oppenings without doors. This study aims to figure out how much impact the configuration of the door has on pedestrian flow. The configurations that have been examined are open doors, free swinging doors, doors that open inwards, doors that open outwards and the differences betw

The initial part of this paper presents an overview of research conducted on switching costs and their implications. Different types of switching costs are identified and categorised according to available research and examples are given. Further, switching costs are with the help of previous research put in relation to various business actions we may encounter on an everyday basis and how they af

BACKGROUND: Alzheimer's disease is characterized by an abnormal increase of phosphorylated tau (pTau) species in the CSF. It has been suggested that emergence of different pTau forms may parallel disease progression. Therefore, targeting multiple specific pTau forms may allow for a deeper understanding of disease evolution and underlying pathophysiology. Current immunoassays measure pTau epitopes

While Gender studies has sometimes been placed in opposition to biomedicine and medical practices in public debate, there is increasing scholarly recognition of the relevance of social factors and relationships for biological and medical phenomena and for the quality and equity of healthcare practices (Chin et al., 2016; Meloni, Cromby, Fitzgerald, & Lloyd, 2018; SKL, 2014). In Sweden and int

This report presents the final output from the project Crowd safety: prototyping for the future. The research includes a scoping study focusing on determining primary parameters for pedestrian movement and experimental results on movement in various conditions that focus on movement speed, contact distance and movement behaviour. A parametric model for predicting movement is presented based on thi

Neutron macromolecular crystallography (NMX) is a complementary technique to X-ray crystallography leveraging neutron scattering properties of the hydrogen isotope deuterium (2H). Production of deuterium labelled molecules together with large crystal requirements for neutron crystallography are few of several bottlenecks limiting implementation of this technique for a wider range of proteins. PerdNeutron macromolecular crystallography (NMX) is a complementary technique to X-ray crystallography leveraging neutron scattering properties of the hydrogen isotope deuterium (2H). Production of deuterium labelled molecules together with large crystal requirements for neutron crystallography are few of several bottlenecks limiting implementation of this technique for a wider range of proteins. Perd

The analysis of surface wave dispersion curves is a way to infer the vertical distribution of shear wave velocity. The range of applicability is extremely wide: going, for example, from seismological studies to geotechnical characterizations and exploration geophysics. However, the inversion of the dispersion curves is severely ill-posed and only limited efforts have been put in the development of

This thesis work was aimed to investigate dynamical processes in atoms and molecules on ultrafast time scales initiated by absorption of light in the extreme ultraviolet (XUV) regime. In particular, photoionization and photodissociation have been studied using pump-probe techniques involving ultrafast laser pulses. Such pulses are generated using either high-order harmonic generation (HHG) or free

Atrial cardiomyopathy, characterized by abnormalities in atrial structure and function, is associated with increased risk of adverse cardiovascular and neurocognitive outcomes, independent of atrial fibrillation. There exists a critical unmet need for a clinical tool that is cost-effective, easy to use, and that can diagnose atrial cardiomyopathy. P wave parameters (PWPs) reflect underlying atrial

PURPOSE: The Swedish National Diabetes Register (NDR) has developed a diabetes-specific questionnaire to collect information on individuals' management of their diabetes, collaboration with healthcare providers and the disease's impact on daily life. Our main objective was to develop measures of well-being, abilities to manage diabetes and judgements of diabetes care, and to detect and quantify di

Massive multiple-input multiple-output (MIMO) is expected to be a vital component in future 5G systems. As such, there is a need for new modeling in order to investigate the performance of massive MIMO not only at the physical layer but also higher up the networking stack. In this paper, we present general optimization models for massive MIMO, based on mixed-integer programming and compatible sets