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Streaming video over the internet can face issues when met with poor and varying network conditions, which can be especially noticeable when streaming live video such as security footage or video calling. To handle this, there exists congestion control algorithms that monitor network conditions based on feedback from the receiver and adapt the video output. This thesis aims to implement and compar
Voice impersonation is a technique that has often been used by criminals whose goal is to avoid being identified while committing a crime. There are, however, other interesting cases where the police confronts a suspect with an incriminating recording, and the suspect would deny being the true speaker in that recording, and claim that it belonged to an expert impersonator. In both of these cases,
In the framework of this thesis, the optimization of the etching process of GaN for FinFET applications has been investigated. FinFETs are transistors with a vertical architecture in the shape of fins. These fins are fabricated by etching a pattern into a GaN substrate. The etching is carried out in two steps, a dry etch and a wet etch. In this thesis, these etching steps have been carried out whi
The demand for alternative sources of protein has increased; the so-called “protein shift” is an inevitability. Mycoprotein, a foodstuff produced from the mycelium of filamentous fungi, has gained popularity among consumers. Mycoprotein is grown in submerged culture, in either a simple or a complex, undefined medium. Strategies for yield increase in either medium were studied in this paper. For s
Proteases are a group of enzymes that are involved in breaking down larger proteins into smaller polypeptides or single amino acids, and they are used in various applications. In this project, the potential of budding yeast Saccharomyces cerevisiae as host for the construction of protease libraries is evaluated. Three model proteases of bacterial origin are used to evaluate transformation efficien
Despite developments in economic growth theory, the importance of savings and investment has remained consistent. It intrinsically connects to the importance of functioning financial intermediation and high levels of financial inclusion. While Sub-Saharan Africa still lags, Tanzania has during the last decade seen a rapid rise in mobile money services. This paper attempts to answer the potential o
Denna framställning redogör för beskattningen av derivatinstrument i inkomstslaget näringsverksamhet. I inkomstskattelagen delas derivatinstrument upp i lagertillgångar eller kapitaltillgångar baserat på vilken typ av aktiebolag som äger tillgången. I bolag som huvudsakligen bedriver handel med värdepapper anses sådana tillgångar vara lagertillgångar. I alla andra bolag är derivat kapitaltillgånThis thesis describes the taxation of derivatives in the business income tax act (“Inkomstslaget näringsverksamhet”). The Income Tax Act divides derivative instruments into inventory assets or capital assets based on the type of company that owns the asset. Assets held by companies engaged primarily in the trading of securities and derivatives are considered to be inventory assets. In other compa
Bakgrund: Dörröppningar till operationssalen under pågående operation påverkar ventilationen, vilket kan öka risken för postoperativ sårinfektion. Vid ortopedisk implantat- och allmän ortopedisk kirurgi ska ultraren luft uppnås för att förebygga vårdrelaterade infektioner. Syfte: Syftet med studien var att undersöka frekvensen av dörröppningar till operationssalen vid ortopedisk implantatkirurgi i
A team of clinical researchers at Lund University found that electromagnetic radiation, such as that used in GSM-900 mobile telephones, at low non-thermal power values (<2 W/kg), causes users' blood albumin to leak through the blood-brain barrier "BBB" into in the brain tissue. The neurosurgeons: Leif Salford MD, PhD, professor emeritus, Henrietta Nittby MD, PhD,Ne
We have studied the conversion of two molecules of carbon monoxide to ethylene catalyzed by nitrogenase. We start from a recent crystal structure showing the binding of two carbon monoxide molecules to nitrogenase and employ the combined quantum mechanics and molecular mechanics approach. Our results indicate that the reaction is possible only if S2B dissociates as H2S (i.e., the charge of the FeM
In the realm of biological image analysis, deep learning (DL) has become a core toolkit, for example for segmentation and classification. However, conventional DL methods are challenged by large biodiversity datasets characterized by unbalanced classes and hard-to-distinguish phenotypic differences between them. Here we present BioEncoder, a user-friendly toolkit for metric learning, which overcom
The study of rapid and stochastic events that involve multiple species, such as chemical reactions and plasma dynamics, requires means to capture multispectral information in two dimensions at both high temporal- and spatial resolution. Commercially available cameras that provide high temporal resolution are based on either signal intensification or rapid data acquisition. Intensified cameras prov
The minimization of the total variation is a well-established technique of preservingedges and discontinuities. Therefore it has wide applicability in image processing,where one is interested in recovering a corrupted image while preserving edges inthe image. In the last decades, in the literature, there have been introduced manydifferent approaches and algorithms for minimizing the total variatio
When treating pregnant women with antiepileptic drugs (AEDs), clinicians have to balance potential fetal adverse effects against the risks of uncontrolled maternal disease. Only recently have emerging scientic data provided a rational basis for treatment decisions considering both aspects. The focus of research is currently moving from the first to the second AED generation. Lamotrigine is relativ
Hybrid analog-digital beamforming stands out as a key enabler for future communication systems with a massive number of antennas. In this paper, we investigate the hybrid precoder design problem for angle-of-departure (AoD) estimation, where we take into account the practical constraint on the limited resolution of phase shifters. Our goal is to design a radio-frequency (RF) precoder and a base-ba
Alzheimer’s disease can be treated by targeting amyloid-β plaques and diagnosed in vivo by biomarkers, prompting the revision of criteria for the diagnosis and staging of this disease.
