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Background: environmental impact from health care contribute to a substantial part of the public sector’s consumption based emission of greenhouse gases in Sweden. An issue, recognized by the health care sector itself, is the increasing use of single-use products. Objective: to compare environmental impact and cost differences between a single-use, ResposableTM, and mixed setup of the surgical in
Aim: Renography with 99mTc-MAG3 is one of the most common nuclear medicine examinations. It’s extensive use justifies a thorough investigation of the methods used to accurately determine the split renal function, for instance with regard to background subtraction and correction for renal depth differ- ences. Previous studies on this subject have been made, mainly on patient image data, thus the ”t
This thesis focuses on predicting the usage efficiency of e-scooters through the application of a Spatio-Temporal Graph Neural Network (STGNN). The predictions made by the STGNN will be compared with classical machine learning (ML) methods, including Random Forest (RF), Artificial Neural Network (ANN), and Linear Regression (LR). To facilitate the prediction of usage efficiency, the Time to Bookin
As technology progresses, it seems to become increasingly inevitable for everyday objects in our homes to incorporate advanced features, to increase functionality, convenience, and energy management. This master’s thesis presents the continuation of a Bluetooth lighting system, aiming to develop a comprehensive website solution for handling the provisioning and configuration of Bluetooth Mesh devi
Background/purpose Quantitative susceptibility mapping (QSM) is an MRI-based post processing technique to evaluate the magnetic susceptibility, χ, of human tissue using phase data. While brain imaging has been the most common application, other areas have also raised interest. For example, QSM of the articular cartilage of the knee has been suggested as a means to study the degeneration of this ti
Terahertz radiation is a useful tool for inducing lower-energy excitations in matter, where it can be used to cause structural changes through direct interaction with the crystal lattice. Sub-picosecond optical pulses can be used to generate intense broadband terahertz pulses through optical rectification in nonlinear crystals, reaching peak electric fields of several MV/m and conversion efficienc
Streamflow analysis helps us understand the availability of water resources in a region or a river. Accurate and timely streamflow monitoring is essential to improve our understanding of the hydrological cycle. Streamflow information is also necessary for many applications, such as irrigation planning, watershed management, hydropower products, flood control, and integrated water resources managem
In most manufacturing companies, it is necessary to carry inventory to a greater or lesser extent in order to disconnect the activities in the supply chain that are not conducted at the same pace. This way, a smoother flow through the chain, from raw material extraction to arrival at the final customer of a finished product, is facilitated. However, different parts of a company often have conflict
The interactions between airway epithelial cells (AECs) and dendritic cells (DCs) play an important role in the sensitization towards airborne allergens. Not much is known about the underlying mechanisms and novel in vitro approaches are needed, which include the different involved cell types in order to investigate what happens at the molecular level during sensitization. In this project, one aim
The studied intrusion, the Hakefjorden Complex on Älgön is a norite-anorthosite complex situated in the archipelago on the west coast of Sweden. The origin of the intrusion will be deduce through in situ Sr-isotope analysis by MC-ICP-MS (multiple collector- inductively coupled plasma- mass spectrometry) on plagioclase, together with petrographic description and chemical analysis. The examined plag
Abstract On May 18th in Abu Dhabi, UAE, IRENA released a report declaring that Djibouti can meet 100% of energy demand through renewable energy sources by 2020. Today, 55% of the population lives without access to electricity, 60% is unemployed, and the country depends greatly on imports of energy sources, inter alia fossil fuels and electrical power, which contribute to the continued rising leve
The purpose of this essay is to examine how the Shoah affects Israeli society today and deals with the construction of identity and collective memory of the Post-Shoah generations in Israel. The study analyzes three Israeli documentary films through the theory of Marianne Hirsch’s “postmemory”. These films are The Flat (2011), Six Million and One (2011), and Defamation (2009). The essay cast its l
Increasingly popular, distance education has been researched from many angles, but studies done from a cultural analytic perspective are rare. Most studies up to this point have focused on the pedagogical perspective. This thesis aims to investigate challenges faced by different stakeholders in distance education, including online course promoters, teachers, and students, from a cultural analytic
An engineering approach to the evaluation of the TCP as a narrowband bearer for short messages in the low latency train-trackside communication scenario is described in this report. The project was developed in cooperation with Bombardier Transportation Sweden AB as a part of the “ETCS over GPRS” venture. With the increase of the demands from the railway industry, the currently used circuit-switc
How can a small fire at a subcontractor in the USA lead to a multimillion dollar loss at a Swedish telephone company, and how can a single machine breakdown lead to a complete production stop at a production company? With today logistics and production trends, where terms such as Lean Production, Six Sigma, 5S, and World Class Manufacturing are used every day, production companies are introducing
Popular Science Summary The aim of this thesis is to develop a method for the selective cleavage of a carbon fluorine bond with a transition metal. The main focus is directed towards the synthesis of a gemdifluoro, syn-diphosphine compound XX. When treated with iridium the metal should bind to the phosphines which keeps it close enough to the carbon fluorine bond to break it and form what is known
The competitive corporate environment of today, as marked by continuous changes and enhanced global competition, forces companies to constantly adapt their current business activities and increasingly excel. Innovation is considered a critical imperative in order to respond to these increased competitive threats. Hence, innovation ought to permeate corporate environments and their inherent busines
A rising problem within electronics today is that, since the frequencies have increased dramatically, it is now very difficult to measure signals. If a traditional probe is used, then the direct contact will destroy the signal. The general idea behind this master thesis project is to make use of the crosstalk between transmission lines to create non contact test points. This thesis aims to evaluat
Popular science summary Are aerial drones the future for wild boar crop damage surveys? The wild boars are back, and they have returned in force. This is a rather recent trend since wild boars were extinct in Sweden until the 1970s and since then they have multiplied explosively, spreading all over central and southern Sweden. Their re-appearance has led to conflicts with human interests, namel
The thesis aims to explore what influences the Danish consumers when choosing food distribution channels in 2020 and further to test if current theories of consumers’ channel choice can be applied in the year of 2020. The thesis takes on a qualitative approach with mathematical principles and employs the Delphi Method as the primary method to collect data. To conduct the empirical analysis a desk
