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Interactions between T-cells and other body cells is an essential part of the immune system. It involves the binding between surface receptors of the two cells. Specifically, T-cell receptors (TCRs) bind onto pMHC (peptide-loaded major histocompatibility complex) molecules on the partnering cell surface. This way, a cell signal from the TCR to the nucleus can be initiated. Depending on the "m
Vital societal functions and critical infrastructure rely to an increasing extent on services from space, such as navigation and positioning systems, timekeeping, and communications. However, understanding of space service dependencies is low among practitioners and society at large, with research on societal space dependency being limited as well. In order to avoid cascading effects from disrupti
Nominal rigidity is a central question in the debates to address better models to predict the outcome of certain policies. However, there is little empirical evidence that gives a deeper understanding of the mechanism that transmits this friction into the economy. This paper aims to understand the relationship between price rigidity and wage rigidity in the Swedish economy. I found a positive rela
Danske Bank has for several years modeled customer purchase behavior on category level (e.g. savings or investments). This thesis is a first attempt at predicting (first time) customer purchase behavior on product level. Five products within two categories were chosen and modelling was done with python using gradient boosters (mainly XGBoost, but also Light GBM). Results indicated that predicting
Of the food produced for human consumption, one-third is lost or wasted. Food waste has an impact on the environment in several ways and it is thus required to reduce food waste in all parts of the value chain. The objective of this thesis is to identify drivers and barriers for implementing food waste reducing strategies in school kitchens. The study is conducted within the project Göteborgsmod
Temperature recordings from a moving vehicle are frequently used in microclimatological research. This work aims at investigating three aspects of the quality and the representability of mobile-recorded temperature data: the displacement of air near the car's front; the inertia of the sensors which hinders the accurate recording of fast fluctuations, and how good temperature profiles obtained
The main aim of this project was to peel off the epitaxially grown nanowires (NWs) from their native substrate and transfer them to the cheaper carrier substrate in order to make solar cell device from transferred NWs. Potentially the peeling and transferring idea is about to decrease the cost of NWs growth by reusing the native substrate especially for expensive material such as InP and GaAs whic
The aim of this study is to contribute to the existing literature on co-creation in investigating consumers’ motives for participation on the one hand and possible effects of this participation on brand knowledge on the other. It thus provides a link between co-creation, motivation, and branding literature. A constructionist ontological stance and interpretive epistemology led us to the research p
This thesis aims to identify online branding channels used by SMEs and determine which of those channels are the most effective. For this, a quantitative study of four SME brands is conducted and their online branding efforts analyzed. The findings add to the existing theory in the field as well as propose a new framework for analyzing and classifying SMEs online branding channels. The gathered da
The goal of this master thesis was to examine some of the available development tools for augmented reality in mobile applications. The best development tool were then used in development of an application for Android or iOS. The thesis has two main parts, the analysis of development tools and the application development. During the analysis ve dierent commercial development tools for augmented re
The possibility to print out metallic components with complex 3D-structures is could revolutionize the industry. In this master’s thesis the cause of process parameters have been investigated for three alloys; stainless steel, 316L, two nickel-based alloys, a derivative of Alloy 738 and 939. Microstructure, porosity, tensile testing, impact toughness, hardness and surface roughness was investigate
Value-at-Risk (VaR) forecasting in the context of Monte Carlo simulations is evaluated. A range of parametric models is considered, namely the traditional Generalized Autore- gressive Conditional Heteroscedasticity (GARCH) model, the exponential GARCH and the GJR-GARCH, which are put in the context of the Gaussian and Student-t distri- butions. The returns of the S&P 500 provide the basis for
This study gives an insight how new technology-based-firms (NTBFs) take part in investment readiness programmes (IRP) in practice and how this differs from the theoretical model by Mason and Harrison (2001). The first part of this study focuses on NTBFs, the role the play in the economy, the challenges they face and their need for financial resources. Furthermore, this paper explains the theoretic
This master thesis is on Statistical Process Control (SPC). The objective is to evaluate if SPC can be used in a process that produces plates for heat exchanger, the process evaluated is located at Alfa Laval Lund AB. The products are produced in the process by punching and shearing metal coils. An ambition in the project is also to increase the knowledge about Statistical Process Control at Alfa
Cardiovascular diseases are accountable for almost 50 % of the mortality number in Europe which is why research on its causes is highly prioritised. For practical and ethical reasons, in vitro study models are of high importance to enable research on cardiac abnormal behaviours. To meet this issue, researchers from Imec, Belgium, developed Neuray-II, the second generation of a biocompatible chip w
Dividing wall columns are single shell distillation columns which are thermally fully coupled. DWC has the ability to create three product streams from one feed stream. A simulation of DWCs is hard due to the complexity of the system. Unfortunately, there is no good software package that can be used for simulations. Instead a detailed flowsheet with the right components and good arrangement over t
In this thesis, we study the Jarrow and Yildirim framework for inflation modeling and provide a new specification based on spread modeling which allows to calibrate the model to Zero-Coupons and Year-on-Year options jointly with convexity adjustments. We use this model to provide closedform formulas for options volatilities, convexity adjustments and Year-on-Year swaptions prices. Calibration resu
Oleaginous microorganisms provide an opportunity to produce oils without the use of arable land for cultivation of oil-containing plants. Oleaginous microorganisms are also capable of storing products of pharmaceutical interest alongside storing polymers, which could open new opportunities in the bioplastic industry. Oily yeasts have several advantages in comparison to alternatives; their doubling
For modern large scale cloud services a fast and reliable anomaly detection is of utmost importance. Traditionally developers perform simple keyword search, for keywords such as "error" or "fail" in the log data, one of the main data sources that depicts the state of the system. In today’s large-scale systems however several TB of log messages can be output every day making man
