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This paper investigates the performance of benchmark indices and according ETFs against the synthetic portfolios that were built using the five major holdings of the selected benchmark index and its ETF. Not only do we test the synthetic portfolios, but from them, we make optimal (re-balanced) portfolios using mean-variance optimization (with short-selling constraints). We test and examine the ret
Mutual fund savings in Sweden has during the last 40 years gone from close to nil to represent a large portion of the private and public savings within the country. However, in recent years, the occurrence of closet indexing has been brought to light by researchers and media. Closet indexing is considered to be the fund manager’s failure to manage the fund portfolio as actively as is otherwise adv
This paper focuses on constructing models that predict a Value at Risk (VaR) estimation for financial portfolios using hierarchical clustering and copulas. Traditional VaR models often assume linear dependencies and normal distributions, which can be poor assumptions for financial data - especially during extreme market events. This paper introduces a non-linear modeling approach using copulas to
Bioacoustic sound event detection (SED) is a critical field for biodiversity monitoring, yet the high cost of annotating data poses significant challenges. This thesis explores the application of active learning strategies to reduce the amount of annotated data required for effective model training. This is done for a segment based SED model, where batch active learning is performed by querying fu
Examensarbetes titel: Distansarbete: den abstrakta marknadsföringens främsta utmaning - En kvalitativ intervjustudie baserad på marknadsförares upplevelser om hur marknadsföringsarbetet influeras av plats Seminariedatum: 31 maj 2024 Ämne/kurs: FEKH29 - Examensarbete i marknadsföring på kandidatnivå, 15 högskolepoäng Författare: Greta Berzell, Jessica Lundqvist & Emmie Ullsberg Handledare:Title: Remote Work: The Primary Challenge of Abstract Marketing - A Qualitative Interview Study Based on Marketers' Experiences of How Marketing Work is Influenced by Location Seminar date: 31st of May 2024 Course: FEKH29 - Degree Project Undergraduate level, Business Administration, Undergraduate level, 15 UPC Authors: Greta Berzell, Jessica Lundqvist & Emmie Ullsberg Supervisor: Pat
To decrease the dependency of fossil-based raw materials in society, and with that, the chemical industry, new and sustainable raw materials need to be investigated. Lignin is an abundant aromatic biopolymer, that can be used to produce, e.g. aromatic fine chemicals through depolymerization. In this master’s thesis, different homogeneous and heterogeneous catalysts were screened for oxidative depo
This study presents a systematic overview and mapping of potential metrics for evaluating the impact of forest management on biodiversity in Swedish forestry. The primary approach involves quantitative Life Cycle Impact Assessments (LCIA) as part of Life Cycle Assessments (LCA). Given the increasing need to integrate the impact on biodiversity into complex value chains, the absence of a standardis
Studiens syfte var att undersöka vilka patienter med depressionsdiagnos som behandlats med individuell psykoterapi hos psykolog inom psykiatriska öppenvården vid Psykiatri Affektiva, Sahlgrenska Universitetssjukhuset åren 2013 till 2023. Data inhämtades från klinikens patientadministrativa system där vårdåtgärder registreras och innefattade 27 008 patienter. Patienter med depressionsdiagnos gThe study aimed to investigate which patients with diagnosis of depression received individual psychotherapy from a psychologist within psychiatric outpatient care at Psykiatri Affektiva, Sahlgrenska Universitetssjukhuset, between 2013 and 2023. Data was obtained from the clinic’s patient administrative system where care measures are registered and included 27 008 patients. Patients with diagnosis
Saturated laser-induced fluorescence (saturated LIF) has been the topic of some research, however mainly regarding laser diagnostic methods conducted on flames. A few papers have discussed saturated LIF with the purpose of producing saturation curves of different fluorescent elements. The utilised methods in these cases have involved manually increasing the laser intensity and detecting the fluore
This study aims to contribute with knowledge regarding how street-level bureaucrats within the police and the social services in Malmö experience their discretion and conditions for information exchange for crime prevention purposes among children. The study also aims to examine what standards for working methods, and the discussion between privacy protection and law enforcement, that can be ident
N,N-diphenyl carbazolium salt has attracted interest for applications in anionic exchange membranes (AEM) due to its structural features and the high chemical stability that the compound exhibit. AEM are polymeric membranes with positively charged functional groups. They can be employed as electrolytes in alkaline fuel cells. In this project, different types of N,N-diphenyl carbazolium compounds w
Antagandet om att personer med ätstörningar är smala är fortfarande utbrett, trots att det finns ett signifikant samband mellan ätstörningar och obesitas. I linje med detta finns en kunskapslucka avseende skattningsformulär riktade mot att fånga ätstörningar och subkliniska besvär hos personer med obesitas. En systematisk litteraturöversikt genomfördes med syftet att hitta tillgängliga formulär, mThe assumption that people with eating disorders are skinny is still widespread, even though there is a co-occurrence between eating disorders and obesity. Despite this co-occurrence, there is a gap in the knowledge regarding questionnaires aimed at assessing eating disorders and subclinical symptoms for people with obesity. Therefore, a systematic review was conducted with the purpose of finding
The European Spallation Source ESS, under construction in Lund, Sweden, aims to produce high-brightness and intensity neutrons for a multitude of experiments upon completion. An efficient production of neutrons requires elaborate understanding of the moderation process which slows the neutrons from relativistic speed to a kinetic energy of meV. The moderator used at the ESS will be partially made
In this paper regularization of the correlation matrix between futures contracts is examined. With starting point in the recently established HPCA framework (Avellaneda, 2019), a couple of different extensions to the one-factor model is suggested. Extensions are made in terms of adjusting the model according to different cluster structures. The data consists of futures contracts on a wide variety
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
Retrieval orientations refer to cognitive states that, if adopted, tonically orients episodic retrieval attempts towards the sought-after type of information. Such orientations can enhance episodic retrieval by modulating the processing and effectiveness of retrieval cues. The current study investigated if retrieval orientations are adopted volitionally and spontaneously, as previous studies have
Malware (malicious software) is becoming an increasing problem, as it continuously grows both in numbers and complexity. Traditional, signature based anti-virus systems are often incapable of detecting new, sophisticated malware, which calls for more advanced tools. So called sandboxes are tools which automate the process of analyzing malware by actually running them in isolated environments and o
The fact that educational buildings are places where the majority of us spend most of our formative years, their design plays an important part in improving the education level and well-being of society. A number of changes have been made to the traditional design of these buildings in the last few decades and the old education system, where the teacher solely acts as an informer and the children
This report describes a part of the product development process for a mechanical adjustment of the head pressure in an extruder at Tetra Pak. The pressure is adjusted by a valve that increases or decreases the pressure by moving a valve stem. In the current solution the valve stem is moved by hand, which will no longer be effective when Tetra Pak streamlines the extruder. The project also includes
Liquid-liquid emulsions can be created using different mixing techniques and the equipment used for processing has a large impact on the final emulsion. Rotor-stator mixers are one of the most commonly used mixers today with multiple application areas. The droplet size is a key parameter during industrial mixing and emulsification, since it influences both the stability and quality of the product.
