Search results for " Functional"

Dissociable Functional Brain Networks Associated With Apathy in Subcortical Ischemic Vascular Disease and Alzheimer’s Disease

2021

Few studies have investigated differences in functional connectivity (FC) between patients with subcortical ischemic vascular disease (SIVD) and Alzheimer’s disease (AD), especially in relation to apathy. Therefore, the aim of this study was to compare apathy-related FC changes among patients with SIVD, AD, and cognitively normal subjects. The SIVD group had the highest level of apathy as measured using the Apathy Evaluation Scale-clinician version (AES). Dementia staging, volume of white matter hyperintensities (WMH), and the Beck Depression Inventory were the most significant clinical predictors for apathy. Group-wise comparisons revealed that the SIVD patients had the worst level of “Ini…

An analysis of cohesion in a popular music recording : Tori Amos's "Me and a gun", in its articulations of textual subjectivity

2002

Tackling Online Disinformation. The Construction of 'Trustworthiness' and 'Best Practices' in the European Commission Discourse on COVID-19

2022

Over the last few decades, misleading healthcare information and deceptions with false claims, conspiracy theories (CTs) and consumer fraud have endangered public health on a global scale. More recently, the COVID-19 pandemic has been accompanied by a substantial flow of false information and unceasing attempts by conspirators to influence debates in the official discourses, breeding on the fertile ground of people’s most basic anxieties and the present-day social and economic uncertainty. This paper investigates the discourse of the European Commission on disinformation in order to achieve institutional legitimation through the linguistic and discursive construction of ‘trustworthiness’, ‘…

Tailoring oxide properties: An impact on adsorption characteristics of molecules and metals

2014

Abstract Both density functional theory calculations and numerous experimental studies demonstrate a variety of unique features in metal supported oxide films and transition metal doped simple oxides, which are markedly different from their unmodified counterparts. This review highlights, from the computational perspective, recent literature on the properties of the above mentioned surfaces and how they adsorb and activate different species, support metal aggregates, and even catalyse reactions. The adsorption of Au atoms and clusters on metal-supported MgO films are reviewed together with the cluster׳s theoretically predicted ability to activate and dissociate O 2 at the Au–MgO(100)/Ag(100…

Sykepleieres erfaringer med tidlig mobilisering av intuberte intensivpasienter

2014

Masteroppgave i spesialsykepleie – Universitetet i Agder 2014 Background: Studies show that early mobilization of the intubated ICU patients brings positive benefits for the patient. Aim: To illuminate nurses’ experiences with early mobilization of intubated patients in the ICU. Method: It was conducted individual interviews with six intensive care nurses from an ICU in Denmark. The data was analyzed using a qualitative content analysis. Results: The analysis resulted in three categories "New mobilization routines", "Benefits" and "Challenges" with two subcategories each, "New mobilization guide" and "Utilities", "The benefits for the patient" and "Economic benefits" and "Challenges in the …

On hidden heterogeneity in directional asymmetry – can systematic bias be avoided?

2006

8 pages; International audience; Directional asymmetry (DA) biases the analysis of fluctuating asymmetry (FA) mainly because among-individual differences in the predisposition for DA are difficult to detect. However, we argue that systematic bias mainly results from predictable associations between signed right-left asymmetry and other factors, i.e. from systematic variation in DA. We here demonstrate methods to test and correct for this, by analysing bilateral asymmetry in size and shape of an irregular sea urchin. Notably, in this model system, DA depended significantly on body length and geographic origin, although mean signed asymmetry (mean DA) was not significant in the sample as a wh…

The Eco-tourist in Canadian and Italian national Parks

2013

The present paper aims to compare the image of the eco-tourist across languages and cultures, Canadian and Italian. An ad-hoc comparable corpus has been created from the official websites of National Parks which represent a kind of eco-tourist destination. The analysis attempts to trace a profile of Canadian and Italian eco-tourists Drawing upon the Functional Grammar (Halliday 1985) and addresses issues connected with Hall’s model (1983): Are Canadian and Italian ecotourism discourses shaped by their own cultural orientation, or do they attempt to speak in the tongue of the displaced tourist?

Electronic and magnetic structure ofLa0.875Sr0.125MnO3calculated by means of hybrid density-functional theory

2007

We present the results of ab initio calculations on magnetic and electronic structures of La1�xSrxMnO3 at low doping, x =1/8. Using the B3LYP hybrid exchange-correlation functional within the framework of densityfunctional theory, we predict a ferromagnetic ground state for La0.875Sr0.125MnO3 in both the low-temperature orthorhombic and the high-temperature pseudocubic phases. This is in contrast to its parent compound LaMnO3, for which we find in agreement with experiment the layered antiferromagnetic state to be the most stable one. The calculated density of states and bond population analysis suggest a tendency of formation of half-metallic spin states in the band gap of both structures.

First-principles calculations on surface hydroxyl impurities in BaF2

2012

Abstract OH − impurities located near the (1 1 1) BaF 2 surface have been studied by using density functional theory (DFT) with hybrid exchange potentials, namely DFT-B3PW. Twenty surface OH − configurations were studied, and the hydroxyls located on the first surface layer are the energetically most favorable configurations. For the (1 1 1) BaF 2 surface atomic layers, the surface hydroxyls lead to a remarkable XY -translation and a dilating effect in the Z -direction, overcoming the surface shrinking effect in the perfect slab. Bond population analysis shows that the surface effect strengthens the covalency of surface OH − impurities. The studies on band structures and density of states (…

Context-dependent foraging habitat selection in a farmland raptor along an agricultural intensification gradient

2021

Abstract Gradients of agricultural intensification in agroecosystems may determine uneven resource availability for predators relying on these man-made habitats. In turn, these variations in resource availability may affect predators’ habitat selection patterns, resulting in context-dependent habitat selection. We assessed the effects of gradients of landscape composition and configuration on habitat selection of a colonial farmland bird of prey, the lesser kestrel (Falco naumanni), relying on 76 GPS-tracked nestling-rearing individuals from 10 populations scattered along an agricultural intensification gradient. Analyses were conducted considering two ecological levels of aggregation (the …