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Artificial neural networks are, again, on the rise. The decreasing costs of computing power and the availability of big data together with advancements of neural network theory have made this possible. In this thesis, LSTM (long short-term memory) recurrent neural networks are used in order to perform financial time series forecasting on return data of three stock indices. The indices are S&P
The purpose of this master’s thesis is to provide a contribution to the research body regarding consumer returns, particularly within the online fashion retail industry. A quantitative data analysis approach is chosen and two main methods are used: data study that aims to identify patterns and interesting relationships in the data, and a simulation study that uses real input data to attempt to ide
“The buck stops here”. Så stod det skrivet på det lilla plakatet på president Trumans skrivbord. Detta budskap, lika allmängiltigt idag som 1953, borde verka som en påminnelse om värdet av ansvar och möjligheten till utkrävande av detsamma från alla instutioner och personer med inflytande över människors liv och välmående. Privata militära aktörer är idag aktiva över hela världen och är involverad“The buck stops here”, as was the wording on the famous sign on President Truman’s desk, should remind us today - as it reminded all Americans of the virtues of accountability and responsibility in 1953 - that any office or person that holds influence over the lives of others needs to be able to be held accountable for their actions. Today, Private Military Companies - or PMCs for short - are depl
In this thesis, we focus on these three classes of objects: frieze patterns, polygon triangulations, and planar binary rooted trees. After proving that these objects are in pairwise bijective correspondence with each other, we introduce Catalan numbers through Dyck paths and prove that all these objects are Catalan objects. By studying the properties of triangulations and binary trees, we establis
Det civilprocessuella regelverket ska slita tvister mellan enskilda rättssubjekt. Härvid ska regelverket erbjuda enskilda en möjlighet att realisera sitt rättsanspråk och därigenom erhålla rättsskydd. För att kunna göra detta ska regelverket se till att processen genomförs på ett säkert, snabbt och billigt vis. Detta kan också uttryckas som att vissa krav på rättssäkerhet och processekonomi ställsThe procedural rules within civil law are supposed to resolve disputes between individual legal entities. To this effect the rules are supposed to offer individuals a possibility to realize their legal claims and thereby receive legal protection. In order to do this the procedural rules need to ensure that civil law cases are conducted in a reliable, quick and inexpensive manner. Another way to ex
Achieving a sustainable Swedish industry will require better utilization of resources already available and already spent. Nationally, vast amounts of heat are released into the atmosphere and not made use of. If only a fraction of this energy could be exploited, the path to net zero emission society by 2045 would be thousands of tons worth of CO2 closer. In Sweden, 25% of excess heat delivered to
Proteiner är kroppens byggstenar och behövs bland annat för att reparera celler, bygga upp vävnader och muskler samt bilda enzymer. Proteinbrist kan leda till försämrad hälsa och därför finns rekommendationer att andelen protein i den dagliga kosten bör utgöra 18 E%. Nedbrytning och upptag av proteiner sker från magsäcken till tunntarmen där bland annat olika enzymer är delaktiga i spjälkningen. TProteins are the building blocks of the body and are needed to repair cells, build tissues and muscles and form enzymes. Protein deficiency can lead to deteriorating health and therefore there are recommendations that the proportion of protein in the daily diet should be 18 E%. Digestion and uptake of proteins takes place from the stomach to the small intestine, where various enzymes are involved.
Background Palatable food access promotes obesity leading some to diet. Here, we modeled the roles of duration, intermittency and choice of access in bingeing, escalation of daily intake, and underacceptance of alternatives. Method Female rats with (“Choice”) or without continuous chow access, received chow or continuous (Chocolate), intermittent (MWF) long (24 h, Int-Long), or intermittent short
Introduction Breathlessness is a cardinal symptom in cardiorespiratory disease. An instrument for measuring different aspects of breathlessness was recently developed, the Multidimensional Dyspnea Profile (MDP). This study aimed to validate the MDP in terms of the underlying factor structure, internal consistency, test-retest reliability and concurrent validity in Swedish outpatients with cardiore
Background: Cancer Antigen 125 (CA125) is currently the best available ovarian cancer screening biomarker. However, CA125 has been limited by low sensitivity and specificity in part due to normal variation between individuals. Personal characteristics that influence CA125 could be used to improve its performance as screening biomarker. Methods: We developed and validated linear and dichotomous (≥3
AIMS: Remodelling of the extracellular matrix (ECM) is a key mechanism involved in the development and progression of heart failure (HF) but also functional in associated pulmonary hypertension (PH). Our aim was to identify plasma ECM proteins associated to end-stage HF and secondary PH in relation to haemodynamics, before and after heart transplantation (HT).METHODS AND RESULTS: Twenty ECM plasma
Background: First-line treatment for hip and knee osteoarthritis (OA) including education and supervised exercises, delivered as a self-management program, is considered one of the mainstays in OA treatment. However, the socioeconomic profile of the population that utilizes first-line treatment for hip and knee OA is unclear. The aim of this study was to describe the socioeconomic status (SES) of
Objective: To study the long-term effects of a workplace intervention in addition to structured physiotherapy regarding self-reported measures in patients with acute/subacute neck and/or back pain. Design: WorkUp – a cluster-randomised controlled trial in 32 primary care centers in Sweden, from January 2013 through December 2014 (ClinicalTrials.gov ID: NCT02609750). Intervention: Structured physio
Aim: The aim of the study was to identify sociodemographic, disease-related, physical and mental health-related determinants of fatigue at 2-year follow-up in individuals with symptomatic knee osteoarthritis (OA). Methods: A longitudinal analysis of participants with symptomatic knee OA from the Multicenter Osteoarthritis Study (MOST) was conducted to identify predictors of fatigue at 2-year follo
A growing body of literature on the 2019 novel coronavirus (SARS-CoV-2) is becoming available, but a synthesis of available data has not been conducted. We performed a scoping review of currently available clinical, epidemiological, laboratory, and chest imaging data related to the SARS-CoV-2 infection. We searched MEDLINE, Cochrane CENTRAL, EMBASE, Scopus and LILACS from 01 January 2019 to 24 Feb
Background: Familial breast cancer risk studies usually overlook the dynamic nature of family history. Methods: The authors assessed the effect of incorporating the timing of cancer diagnosis events into the assessment of familial risks of breast cancer in first-degree and second-degree relatives in a nationwide cohort study of 5,099,172 women (follow-up was between 1958-2015). Family history was
Purpose: Three-dimensional, time-resolved blood flow measurement (4D-flow) is a powerful research and clinical tool, but improved resolution and scan times are needed. Therefore, this study aims to (1) present a postprocessing framework for optimization-driven simulation-based flow imaging, called 4D-flow High-resolution Imaging with a priori Knowledge Incorporating the Navier-Stokes equations and
BACKGROUND: Surgery for total colonic aganglionosis (TCA) is designed to preserve continence and achieve satisfactory quality of life. This study evaluated a comprehensive group of clinical and social outcomes.METHODS: An international multicentre study from eight Nordic hospitals involving examination of case records and a patient-reported questionnaire survey of all patients born with TCA betwee
Background: The prevalence of heart failure (HF) is rising with ageing population and constitutes a major health problem globally. A common complication of HF is pulmonary hypertension (PH) which negatively impacts survival. A pathophysiological association between HF and PH with tumorigenic processes has been suggested. We aimed to identify the plasma levels of, and the association between tumour
