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The creation of floral resources for pollinators, such as flower strips, is seen as a relevant and needed intervention but comes with both cost and an opportunity for farmers. It may be worth it if, for example, pollinators are attracted to pollinator-dependent crops and deliver crop pollination. Unfortunately, since pollinators are mobile organisms, the spatial distribution of crop pollination re
Bumblebees (Bombus terrestris) are central place foragers, that have been shown to use path integration based vectors to navigate their environment. They also have remarkable learning and memory abilities, and can readily learn different cues. Recently, a behavioural assay has been developed that allows for rigorous testing of these mechanisms in a laboratory setting. This thesis aimed to use this
High synchronicity within cortical circuits resulting from imbalance between excitatory and inhibitory activity is a key feature of epileptiform seizures and different neuronal development stages. The exact mechanism contributing to this activity is still debated but multiple receptors expressed by cortical cells such as Glutamatergic, GABAergic neurons and astrocytes could be involved. With the r
This thesis revisits one of the most prominent contributions to the literature on labour income shares by \citet{blanchard1997} and offers an alternative perspective on the developments in European and Anglo-Saxon countries between 1970 and 2019. Labour shares in both groups of countries declined resulting from changes in relative factor prices and quantities. I find that changes in relative facto
In this project, RAM, we wanted to question today’s consumption of furniture and create furniture with longevity in mind. Explore the possibilities of designing furniture that would grow with you through life to avoid having the need to buy new in different stages of life. The project resulted in a storage system that can adapt to different living situations which can accrue through life. O
Vid byggande, sanering av före detta avfallsdeponier eller liknande företag som påverkar marken krävs noggranna markundersökningar för att kunna utföra arbetet så tids- och kostnadseffektivt som möjligt samt för att minimera miljöpåverkan. Sådana markundersökningar sker inte sällan med hjälp av geofysiska mätmetoder, där seismik är en av dem. Det är vanligt att använda aktiva metoder med exempelvi
Bark beetle attacks have led to widespread tree disturbance and deaths in many parts of the world, and thereby also economic and biodiversity losses. Forest-rich Sweden has experienced periodic attacks, latest in 2018. There is a great interest in identifying the most important explanatory features behind bark beetle attacks and making spatial predictions on where attacks might happen. This could
Plastic production and disposal have excessively contributed to climate change and other environmental problems. Therefore, the green route for the production of recyclable polymers, which is industrially and economically practical, is indispensable. 2,5-furan dicarboxylic acid (FDCA) synthesised from 5-Hydroxymethylfurfural (HMF) is a new alternative biobased resource for polymers. FDCA has been
Neuroblastoma (NBL) is the most common pediatric extracranial solid tumor and often manifests in the adrenal gland affecting the sympathetic nervous system. Despite many treatment alternatives, the risk of relapse remains, and the overall five-year survival is around 50 %. By downregulating major histocompatibility complex I (MHC-I), the NBL cells can evade the immune system affecting the function
III-V semiconductor material based nanowires have been extensively studied and shown to be a very exciting building block for future electronics. Material systems such as GaSb show a lot of promise in optoelectric and thermoelectric generation applications because of its high electron mobility and small bandgap. Although there is a lot of research about III-V nanowires, a gap in understanding anti
Alexander’s Disease is a progressive neurological disorder caused by a wide array of dominant, gain of function mutations in the GFAP gene. The disorder is characterized by the accumulation of GFAP in astrocytes, leading to the formation of protein inclusion bodies known as Rosenthal fibers. This results in a disruption of astrocytic function and the subsequent degeneration of white matter. Howeve
Objective: 1-2 ‰ of newborns in Sweden are identified with a permanent, habilitation- required hearing impairment at neonatal hearing screening. Traditionally, focus is on the child when diagnosed; the parents’ needs and concerns are not always recognised. The current study aims to elucidate parents’ narratives of their experiences of the process of diagnosis and habilitation of their child with c
This thesis examines how the performance of a rule based trading algorithm, the Golden Cross Trading Algorithm, and an Artificial Neural Network constructed algorithm, the Long Short-Term Memory, perform against each other and a buy- and-hold strategy, when trading on the equity market. The underlying assets will be nine large American tech companies, all listed on Nasdaq. In order to distinguish
Title: The Impact of the Pandemic and War on the State of Global Supply Chains Purpose: The purpose of the thesis is to outline the current state of global supply chains and global energy supply as a result of the Covid-19 pandemic as well as Russia-Ukraine war. Current energy and supply chain issues are explored and discussed based on existing theory on the topic. When the overall issues are cla
Dark matter is one of our universe’s largest mysteries and very little is known about what it is. One of the dominating theories, that it originates from an early universe thermal relic, indicates that it has interaction with the Standard Model. If this is the case, dark matter can be produced at accelerators and detected indirectly by searching for missing momentum signals. LDMX will join this se
