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Background— Atrial fibrillation (AF) is heterogeneous at the clinical and molecular levels. Association studies have reported that common single-nucleotide polymorphisms in KCNE1 and SCN5A may predispose to AF. In this study, we tested the hypothesis that specific AF-associated genotypes confer variation on the appearance of AF assessed by analysis of fibrillatory rate of the atria. Methods and R

Herein we provided the first proof of principle for in vivo fluorescence optical imaging application using monoolein-based cubosomes in a healthy mouse animal model. This formulation, administered at a non-cytotoxic concentration, was capable of providing both exogenous contrast for NIR fluorescence imaging with very high efficiency and chemospecific information upon lifetime analysis. Time-resolv

We study the effect of intuitive and reflective processes on cooperation using cognitive load. Compared with time constraint, which has been used in the previous literature, cognitive load is a more direct way to block reflective processes, and thus a more suitable way to study the link between intuition and cooperation. Using a repeated public goods game, we study the effect of different levels o

We present a nonperturbative analysis of the power spectrum of energy level fluctuations in fully chaotic quantum structures. Focusing on systems with broken time-reversal symmetry, we employ a finite-N random matrix theory to derive an exact multidimensional integral representation of the power spectrum. The N→ limit of the exact solution furnishes the main result of this study - a universal, par

The most efficient way of building up energy in an oscillating system is to do it in phase with a resonant frequency of the system. If the resonant frequency changes for any reason this is difficult to obtain with a static frequency generator. It is of course possible to sweep over a frequency interval to find the maximum repeatedly, but a frequency sweep takes time and it is performed at discrete

Studies on predatory arthropods in agricultural areas seldom include Diptera other than hoverflies, partly because common sampling methods are less effective for capturing species that easily fly off when disturbed. To study the effect from this bias when describing the predator community, we compared traditional beat sampling of branches and suction sampling for describing the community of predat

Gradient orientations are a common feature used in many computer vision algorithms. It is a good feature when the gradient magnitudes are high, but can be very noisy when the magnitudes are low. This means that some gradient orientations are matched with more confidence than others. By estimating this uncertainty, more weight can be put on the confident matches than those with higher uncertainty.

This paper develops a very simple test for the null hypothesis of no cointegration in panel data. The test is general enough to allow for heteroskedastic and serially correlated errors, unit-specific time trends, cross-sectional dependence and unknown structural breaks in both the intercept and slope of the cointegrated regression, which may be located at different dates for different units. The l

In this paper we describe how the contention-based medium access mechanism of 802.11e, EDCA, can be enhanced in order to allow stations to reserve medium access for their real-time applications with QoS requirements. We present our proposed scheme, which is called EDCA with resource reservation (EDCA/RR), and describe how it can be extended in order to be used in wireless multi-hop networks. EDCA/

Transient absorption anisotropy of a polythiophene polymer in a thin film was studied on a femtosecond time scale. The anisotropy has a non-exponential decay on the sub-picosecond time scale, with a fastest component characterized by an ∼40 fs time constant. To simulate the anisotropy decay an incoherent energy migration model has been used. Comparison between the simulated and experimental kineti

Frostnedbrytning av betong kan få allvarliga konsekvenser för en konstruktions säkerhet, beständighet och funktionsduglighet eftersom betongens hållfasthet försämras. Frostskador uppstår vanligtvis i konstruktioner med hög fuktbelastning och som periodvis utsätts för frostangrepp. Olika typer av betongskador, vilka kan misstänkas vara frostrelaterade, har påträffats i svenska vattenkraftsanläggninFrost deterioration of concrete can result in severe consequences to the safety, durability and functionality of a structure since it impairs the strength of the concrete. Frost damage may occur to structures that are in contact with water and subjected to frost action. Different types of concrete damage, which are suspected to be frost related, have been observed in concrete structures in Swedish

Abstract in Swedish Denna rapport presenterar och kommenterar den svenska delen av den expertundersökning som gjordes hösten 2007 för att få en bild av hur arbetsmarknadsrelationerna (industrial relations) i EU25- och G7-länderna kan tänkas se ut år 2025. Bakom undersökningen står European Foundation for the Improvement of Living and Working Conditions (Eurofound), som är ett EU-organ specialiseraThis report presents and comments on the Swedish part of a survey made in autumn 2007 to obtain expert opinions on industrial relations in the EU25 and G7 countries in the year 2025. The survey was carried out by the European Foundation for the Improvement of Living and Working Conditions (Eurofound). One of the basic questions was about how the process of globalisation will influence future indus

This paper explores short and long-run changes in the energy to capital relation. The K/E ratio is calculated for Sweden 1870–2000, at the national, industrial and branch levels. A basic result is a substantial long-run increase in the K/E ratio which is positively correlated with the relative price pE/pK. The price response is stronger in energy intensive industries than in labour intensive indus

This paper presents an FPGA implementation of an algorithm, previously published, for the the reconstruction of cosmic rays' trajectories and the determination of the time of arrival and velocity of the particles. The accuracy and precision issues of the algorithm have been analyzed to propose a suitable implementation. Thus, a 32-bit fixed-point format has been used for the representation of the

This study aimed to examine the association between the interval from ejaculation to analysis and epididymal and accessory sex gland function in relation to sperm motility. Ejaculates from 1079 men assessed for infertility were analyzed according to World Health Organization guidelines. Biochemical markers were measured in semen to assess the function of the epididymi;s (neutral alpha-glucosidase

Attosecond pulses in the extreme ultraviolet (XUV) spectral range are today routinely generated via high-order harmonic generation (HHG), when intense ultrashort laser pulses are focused into a gaseous generation medium. The effect is most easily understood in a semi-classical picture [1]. An electron can tunnel ionize from the distorted atomic potential, pick up kinetic energy in the laser field,

The way we view the world is constantly affected by our expectations. The aim of this book is to determine how expectations affect the way we read. This will help us better understand how we process information, and how our expectations may change the way we read. The research is situated in experimental pragmatics and reading research. Instructions, headlines, and semantic incongruities are used

Sugar esters (SEs), value-added products derived from inexpensive renewable feedstocks (sugars and fatty acids), are biobased and biocompatible surfactants employed in foods, personal care products, and pharmaceuticals. They also possess antimicrobial and other biological activities. Their market size is projected to be $74.6 million by 2020. SEs are difficult to synthesize due to the poor miscibi