Search results

Filter

Filetype

Your search for "*" yielded 526380 hits

Voxel-Wise Brain Graphs From Diffusion MRI : Intrinsic Eigenspace Dimensionality and Application to Functional MRI

Goal: Structural brain graphs are conventionally limited to defining nodes as gray matter regions from an atlas, with edges reflecting the density of axonal projections between pairs of nodes. Here we explicitly model the entire set of voxels within a brain mask as nodes of high-resolution, subject-specific graphs. Methods: We define the strength of local voxel-to-voxel connections using diffusion

An exploratory modelling study of chemiluminescence in ammonia-fuelled flames. Part 2

The detailed kinetic mechanism of the author was extended by reactions describing formation and consumption of excited species which are formed in NH3+CH4+air flames, complementing the modelling efforts presented in Part 1. Currently the model includes the following excited species: O(1D), OH*, O2*, CH*, CH2(1), NO2*, NO(A), NH*, N2(A), NH2*, C2*, CO2*, CH2O*, and CN*, among which many were observ

Arts and culture engagement and mortality : A population-based prospective cohort study

Aims: The aim of this study was to investigate associations between having visited the theatre/cinema and an arts exhibition during the past year and all-cause, cardiovascular disease (CVD), cancer and other-cause mortality. Methods: The 2008 public health postal survey in Scania, Sweden, was distributed to a stratified random sample of the adult population (18–80 years old). The participation rat

Randomized clinical Trial Comparing drug Eluting Stent Zilver PTX® Versus Bare Metal Stent Zilver Flex® for Treatment of Lesions in Femoral and Popliteal Arteries in Chronic Limb Threatening Ischemia

Objective: Drug eluting stents (DES) might improve the results of stenting in the femoropopliteal (FP) segment, but randomized data between DES and BMS in the treatment of patients with chronic limb threatening ischemia (CLTI) is lacking. The aim of this study was to perform a randomized comparison, between DES and bare metal stent (BMS) implantation in a subgroup of CLTI patients with lesions in

Tuning composition in graded AlGaN channel HEMTs toward improved linearity for low-noise radio-frequency amplifiers

Compositionally graded channel AlGaN/GaN high electron mobility transistors (HEMTs) offer a promising route to improve device linearity, which is necessary for low-noise radio-frequency amplifiers. In this work, we demonstrate different grading profiles of a 10-nm-thick AlxGa1-xN channel from x = 0 to x = 0.1 using hot-wall metal-organic chemical vapor deposition (MOCVD). The growth process is dev

Investigating the Electromechanical Behavior of Unconventionally Ferroelectric Hf0.5Zr0.5O2-Based Capacitors Through Operando Nanobeam X-Ray Diffraction

Understanding various aspects of ferroelectricity in hafnia-based nanomaterials is of vital importance for the development of future nonvolatile memory and logic devices. Here, the unconventional and weak electromechanical response of epitaxial La0.67Sr0.33MnO3/Hf0.5Zr0.5O2/La0.67Sr0.33MnO3 ferroelectric capacitors is investigated, via the sensitivity offered by nanobeam X-ray diffraction experime

A geofencing-based methodology for speed limit regulation and user safety in e-scooter sharing systems

The advent and popularity of shared electric scooters in many urban areas worldwide offer new opportunities and challenges to be addressed by the research community, especially as far as safety and accessibility issues are concerned. This paper proposes a methodology, based on geofencing technology (i.e., virtual geographic boundaries) to define in which urban areas the speed of shared electric sc

Ingen vill sluta avtal med en regering som bryter löften

När regeringen, pressad av SD, inte följer ingångna avtal bryter den med svensk tradition. Historiskt har trepartsmodellen haft framgång i att lösa viktiga samhällsproblem. Med staten som opålitlig part riskeras något av det mest svenska vi har, skriver German Bender på den fackföreningsnära tankesmedjan Arena Idé och professor Anders Kjellberg.

Imitation and Protest: Two Case Studies of Depictions of Marriage in Anne Brontë and Olive Schreiner

Literature has long been an effective vehicle for conveying women’s morals and opinions when they have otherwise been ignored and supressed. Fifty years apart, Anne Brontë and Olive Schreiner wrote fiction critical of different aspects of marriage with noticeably different results and conclusions. This project aims to investigate the basis for these differences by using Elaine Showalter’s idea of

The "Black Butterflies": Color in God Help the Child and the Inverted White Gaze

The discourse on beauty has primarily been focused on the white gaze to prescribe its normative standards. The white gaze conceptualizes the way in which beauty is dwelled on within society: the foisting of Caucasian-looking beauty canons on black women, and the veneration of whiteness as superior. Black bodies are vanguards, either being desired or erased. In literature, the expression “white gaz

An exploratory modelling study of chemiluminescence in ammonia-fuelled flames. Part 1

The present exploratory study is aimed at the modelling of the chemiluminescence signature of premixed laminar NH3+H2+air flames. The detailed kinetic mechanism of the author was extended by reactions describing the formation and consumption of excited NO2*, NO(A), NH*, and NH2* mostly relying on previous analyses of chemiluminescence processes from the literature. The lowest-lying excited state o

Components of local adaptation and divergence in pollination efficacy in a coevolving species interaction

Selection leading to adaptation to interactions may generate rapid evolutionary feedbacks and drive diversification of species interactions. The challenge is to understand how the many traits of interacting species combine to shape local adaptation in ways directly or indirectly resulting in diversification. We used the well-studied interactions between Lithophragma plants (Saxifragaceae) and Grey