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The aim of this study was to deepen the understanding of how community-based water management approaches facilitate sustainable and collective action (SCA) in the context of increasing water insecurity in Costa Rica. Applying a qualitative approach, based on fieldwork in Guanacaste, Costa Rica, including semi-structured interviews and a digital community survey, the study uncovers facilitating fac
The aim of this study was to deepen the understanding of how community-based water management approaches facilitate sustainable and collective action (SCA) in the context of increasing water insecurity in Costa Rica. Applying a qualitative approach, based on fieldwork in Guanacaste, Costa Rica, including semi-structured interviews and a digital community survey, the study uncovers facilitating fac
In the mountainous regions of Bhutan and Nepal, post-harvest losses cause significant challenges for producers. Open air sun drying is usually used by farmers to preserve their produce. There are many disadvantages to this method. The Swedish Research Council is supporting a project called Solar Food: Reducing Post-Harvest Losses Through Improved Solar Drying, which aims to create a low-cost solar
In recent years, battery energy storage systems (BESS) have gained prominence as a key technology enabling much needed electricity grid flexibility while simultaneously providing distinct value to its end-users. With the anticipated increase of residual value holding used batteries from mobility applications entering the market, more and more companies are looking to construct BESS offers around t
High-quality, thick III-nitride epitaxial drift layers with controlled doping are needed for next-generation highly efficient vertical power devices for a smart grid applications and electrification of mobility. Achieving desirable material properties, such as low background impurity concentrations and reduced dislocation densities in combination with high growth rates, necessary for practical app
The phase field method emerged as a tool to solve free boundary problems with a sharp interface. In previous methods, this involved the computationally inefficient and complicated tracking of a moving interface. The phase field method overcomes this limitation by introducing an auxiliary variable called the order parameter which varies continuously over the whole domain and takes on finite values
Despite the increased focus on sustainable urban development both within academia and in urban planning practices, authors seem to agree that we are mostly continuing business as usual and are not embarking on different socio-environmental trajectories. On the contrary, such urban sustainability practices can often lead to processes of displacement and gentrification, thus worsening the conditions
När man jobbar med stora pogrammeringsprojekt är ett av de stora problemen att skriva koden så den går att underhålla. Skriver man kod som är lätt att underhålla är det också enklare att göra tillägg, ändringar och åtgärda problem. I detta projekt har två stora, liknande projekt undersökts för hitta likheter i koden. Om likheterna kan sammanföras till en generisk lösning kommer koden att vara lätWhen working with large programming projects, one of the major problems is to write the code so it can be maintained. If you write code that is easy to maintain it is also easier to extend, change and fix bugs in the code. In this project two large, similar projects were investigated to find similarities in the code. If the similarities could be brought together in a generic solution, the code wo
Non-stationary signals are very common in nature, consider for example speech, music or heart rate. Using the concept of time-frequency analysis this thesis studies the performance of different time-frequency distributions of both simulated and real non-stationary signals. The signals studied are linear and non-linear frequency modulated (FM) signals. Two methods are studied to increase performanc
Traffic accidents cause over 1.2 million deaths, and tens of millions of people are injured or disabled every year. Advanced driver assistant systems and other safety features have the possibility to reduce traffic accidents but do not account for human errors. Studies show that over 90% of all traffic accidents are caused by human errors. One way to reduce human errors is to introduce automation,
A problem within the mobile instustry today is creating third-party applications. Generally developer teams have to develop the same application for several platforms and each platform uses a specific native language. A result of this is that many applications both look and act similar; but have different code bases and work very differently beneath the surface. This is a double maintenance prob
The present study examined the effect of manipulated (threatened or affirmed) sense of agency on Swedish students’ preference for leadership, by ease of retrieval. Three hundred and twelve students (Mage = 23.04, SD = 2.70) participated in the experiment. The aim of the study was to investigate whether individuals’ leadership preferences was affected by perceived sense of agency. By contrasting a
Methyl ammonium lead halides (MAPbX3 , X=Cl-, Br-,I-), crystallizing in a perovskite structure, have in recent years been shown to be a promising material as a light harvesting material in solar cells. It has many interesting properties which makes it suitable for solar cell applications, such as near-optimal band gap and long electron-hole diffusion lengths, as well as the possibility of synthesi
The Modelica language is an object-oriented, equation-based language used for modeling and design in many different domains and for various physical applications. In order to exchange models both between Modelicabased tools and other tools the Functional Mock-up Interface (FMI) has emerged. This interface enables exchange of virtual models between manufacturers and/or divisions within a company. T
El Niño and the Southern Oscillation (ENSO) have a great impact on global climate, often with disas-trous effects in many parts of the world. The carbonate skeleton of corals record El Niño activity by tracing sea surface temperature and salinity in the oceans where they grow. As El Niño’s core region is the equatorial Pacific Ocean, this is where the most direct consequences of ENSO are seen, com
One of the topics that has generated discussions and focuses on demographic theory is undoubtedly the treatment of fertility rates, another important number of studies have incorporated different methods for measuring behaviors in count data, such as Poisson models, also used in the present document. On the other hand, by using panel data, we estimate a random effects model and evaluate the dete
This paper examines how worries about war affect the political participation of women and men in Ukraine. The analysis is based on secondary data from the seventh wave of the World Values Survey 2017-2020. By constructing linear regressions, I examined whether there is a correlation between the worries about the war and the political activity of women and men in Ukraine. This allowed us to see how
The objective of this thesis has been to improve the camera controls of a fixed-wing drone to be used in maritime search-and-rescue operations by the Swedish Sea Rescue Society (SSRS). A gimbal control interface (GCI) has been implemented that displays the video feed of the drone camera while taking control inputs from a joystick that moves its view in real-time. In the thesis, the GCI has been
