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This thesis addresses three different topics on the interaction between light and matter in open quantum systems. The first topic concerns two-dimensional spectroscopy and the spectral contributions from different nonlinear action signals with a focus on how to differentiate between them. The second topic concerns the thermalization of excited electrons in hot-carrier solar cells with a focus on h
This report aims at identifying common causes, patterns, and effects of changing foreign investments across the countries of Central Asia. Experience of neighboring countries in Central Asia as a distinct region of the world attracting foreign investment is particularly relevant for each country in the area. Therefore, the comparative analysis of the Central Asian countries presented in this repor
Twisted bilayer graphene (TBG) has been experimentally observed to exhibit almost flat bands when the twisting occurs at certain magic angles. In this Letter we show that in the approximation of vanishing AA coupling, the magic angles (at which there exist entirely flat bands) are given as the eigenvalues of a non-Hermitian operator, and that all bands start squeezing exponentially fast as the ang
The autonomic nervous system (ANS) is an important factor in cardiac arrhythmia, and information about ANS activity during atrial fibrillation (AF) may contribute to personalized treatment. In this study we aim to quantify respiratory modulation in the f-wave frequency trend from resting ECG. First, an f-wave signal is extracted from the ECG by QRST cancelation. Second, an f-wave model is fitted t
Among plants, gender dimorphism occurs in about 10% of all angiosperms and more than 50% of all moss taxa, with dwarf males (DM) found exclusively in some unisexual mosses. In this study, we explore the role of male dwarfism as a reproductive strategy in the widespread acrocarpous moss Dicranum scoparium, which has facultative male dwarfism, having both dwarf males (DMs) and normal-sized males (NM
OBJECTIVE: The optimal target heart rate in patients with prevalent atrial fibrillation (AF) is not well defined. The aim of this study was to analyse the associations between heart rate and adverse outcomes in a large contemporary cohort of patients with prevalent AF.METHODS: From two prospective cohort studies, we included stable AF outpatients who were in AF on the baseline ECG. The main outcom
We explore the interplay of electron-electron correlations and surface effects in the prototypical correlated insulating material, NiO. In particular, we compute the electronic structure, magnetic properties, and surface energies of the (001) and (110) surfaces of paramagnetic NiO using a fully charge self-consistent DFT+ dynamical mean-field theory method. Our results reveal a complex interplay b
Ekosystemtjänster är alla nyttor som ett fungerande ekosystem ger människan. Att bevara jordbruksmarkens ekosystemtjänster kan vara kostsamt för jordbrukare och då krävs det att de nyttor som tjänsterna ger syns och att bevarandet av ekosystemtjänster är lönsamt. Vi har utvecklat verktyg för att kvantifiera och värdera ekosystemtjänster. Vi presenterar dessa verktyg och visar att:- När det blir lä
Alexander Lingas, Anna Stavrakopoulou, and Thomas Arentzen discuss and present the poetry and music of Byzantium's most outstanding female composer.
Miljöersättningar i landsbygdsprogrammet kritiseras för att inte vara kostnadseffektiva eller attraktiva för många jordbrukare,samt för att inte ta vara på jordbrukarnas kompetens och kreativitet för att lösa miljöproblem. Problemen beror i hög grad på attersättningen betalas ut oavsett storleken på miljöeffekten, bara den avtalade åtgärden utförs. Utvecklingen av ett effektivare system för miljöe
Det pågår en intensiv debatt om hur vi bäst kan använda skogen som resurs. Att ersätta fossila bränslen med förnybara bränslen från den svenska skogen lyfts fram som ett sätt att bidra till klimatmål. Men ett ökat uttag av biomassa kräver att skogen brukas mer intensivt vilket kan vara negativt för en rad andra samhällsmål som skogen bidrar till. Vad skulle ett intensivare skogsbruk totalt sett be
Enligt EU-kommissionen är den gemensamma jordbrukspolitiken central för att nå FN:s globala mål för hållbar utveckling. Nästan 40 procent av EU:s budget går till jordbruksstöd, men i vilken utsträckning stöden bidrar till att uppnå FN-målen är oklart. Vi analyserar hur de 551 miljarder kronor som betalades ut i stöd år 2015 fördelades mellan FN:s 17 hållbarhetsmål. Vi finner att:* 60 procent av st
Postural orthostatic tachycardia syndrome (POTS) is a cardiovascular autonomic disorder with poorly understood etiology and underlying pathophysiology. Since cardiovascular morbidity has been linked to growth hormone (GH), we studied GH levels in patients with POTS. We conducted an age-sex-matched case-control study in patients with POTS (age 31 ± 9 years; n = 42) and healthy controls (32 ± 9 year
OBJECTIVE: Mortality caused by coronary artery disease has markedly decreased in recent years. However, a substantial proportion of patients suffering a coronary event (CE) die within the first day, most of them out of hospital. We aimed to investigate how established cardiovascular (CV) risk factors and CV autonomic indices associate with fatal versus non-fatal CEs in the population.METHODS: 33 0
Airway basal cells are crucial for regeneration of the human lung airway epithelium, and are thought to be important contributors to Chronic Obstructive Pulmonary Disease (COPD) and other lung disorders. In order to reveal how basal cells contribute to disease, and to discover novel therapeutic targets, these basal cells need to be further characterized. In this study, we optimized a flow cytometr
The Intermediate Data Structure (IDS) was developed as a strategy aimed at standardizing the dissemination of micro-level historical demographic data. The structure provides a common and clear data strategy which facilitates studies that consider several databases, and the development and exchange of software. Based on my own experiences from working with the IDS, in this article I provide reflect
