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Migrating birds are expected to fly at higher airspeeds when minimizing time rather than energy costs of their migratory journeys. Spring migration has often been suggested to be more time selected than autumn migration, because of the advantage of early arrival at breeding sites. We have earlier demonstrated that nocturnal passerine migrants fly at higher airspeeds during spring compared to autum

Introduction. We aim to create an in-depth understanding of how pupils in upper secondary school negotiate the credibility and authority of information as part of their practices of learning. Particular focus is on the use of user-created resources, such as Wikipedia, where authorship is collective and/or hard to determine. Method. An ethnographic study was conducted in an upper secondary school c

INTRODUCTION Stroke is a serious neurological disease which may lead to death and severe disability [1, 2]. There are two major types of stroke: ischemic and hemorrhagic stroke. Both are associated with disruption of blood flow to a part of the brain with rapid depletion of cellular energy and oxygen, resulting in ionic disturbances and eventually neuronal cell death [3]. The pathologic process t

Cubozoan medusae have a stereotypic set of 24 eyes, some of which are structurally similar to vertebrate and cephalopod eyes. Across the approximately 25 described species, this set of eyes varies surprisingly little, suggesting that they are involved in an equally stereotypic set of visual tasks. During the day Tripedalia cystophora is found at the edge of mangrove lagoons where it accumulates cl

This thesis presents the results of an investigation into BIM implementation prerequisites emerging as a set of procedural supporting mechanisms that may enable design, construction and operating (DCO) organisations to advance their deployment of Building Information Modelling (BIM) technology, and improve construction project outcomes. Today, BIM is centre-stage within the construction sector the

Presently, there is no published information on the antimicrobial susceptibility pattern of H. pylori strains in Ethiopia to guide the choice of drug for therapy. Therefore, it is becoming clinically relevant to test the in vitro susceptibility of H. pylori clinical isolates prior to treating patients. Susceptibility testing was performed on 50 clinical H. pylori isolates obtained from adult dyspe

The purpose of this paper was to establish what possible set of problems might be associated with three different types of social care available to young people. I chose to study institutionalised care, foster care and home-based intervention. Through interviews with three social workers, my aim was to answer the following questions: - What set of problems related to the teenagers tend to generate

This paper investigates the factors that influence Swedish welfare workers’ attitudes towards migrants and how these attitudes are associated with their encounters with migrant users. Due to increased migration over the last decade, Sweden is now considered an immigrant nation. Migrants with the right to reside in Sweden are included within the larger welfare system. This paper argues that preconc

There is an urgent need for society to find more effective ways to reduce the impact of disastrous events. One way is to proactively increase actors’ response capability. Capability assessments play an essential role in these disaster risk management efforts. Currently, capability is assessed using indicator and index methods that focus on available resources. Such methods may not provide the best

Popular Abstract in Swedish Denna avhandling baserar sig på de erfarenheter av Internet som ett antal människor med betydande kroppsliga funktionsnedsättningar gjort. Personerna i studierna är erfarna och duktiga dator- och Internetanvändare och har få eller inga funktionshinder i dator och online världen, men däremot stora funktionshinder i den fysiska världen. Deras functioning, förmåga attThis thesis is based on the Internet experiences of people with significant mobility/physical impairments who are proficient and experienced computer users in their computer world but have limitations in mobility that severely restrict their functioning in the physical world. The Internet functioning of this group is analysed by means of the factors attitude, control and enabling, with the m

This paper situates contemporary forms of video activism in online environments within a historical trajectory of radical film recruited for Left thinking and action. Focusing on the remix ethos and aesthetics of political mash-up videos, the paper suggests how revisiting the analogue precursors of digital video may help contextualise and understand new forms of video activism, and politically com

Background: There is good evidence that elevated amyloid-β (Aβ) positron emission tomography (PET) signal is associated with cognitive decline in clinically normal (CN) individuals. However, it is less well established whether there is an association between the Aβ burden and decline in daily living activities in this population. Moreover, Aβ-PET Centiloids (CL) thresholds that can optimally predi

Background: While the work situation for nurse assistants in residential care is strenuous, they themselves often state that they are satisfied with their job. More knowledge is clearly needed of the interrelationship of variables associated with job satisfaction. This study aims to investigate job satisfaction and explore associated variables among nurse assistants working in residential care.

Popular Abstract in Swedish Jätteplaneterna, Jupiter, Saturnus, Uranus och Neptunus, är de största planeterna i solsystemet. De ligger långt från solen och har alla betydande gasatmosfärer, upp emot hundra gånger mer massiva än hela jorden. Tack vare de tjocka gashöljena, med en sammansättning som liknar solens, kan man förstå att jätteplaneterna bildades i en gasskiva. Denna skiva kallas för solGiant planets form embedded in a protoplanetary disc around a young star. Close to the midplane a large fraction of the available mass in solids is found in particles of cm to dm in size, which drift towards the star due to friction with the surrounding gas. In paper I, II, III we describe a novel theory that explains how embryos, planetesimals larger than ~1000 km, grow efficiently by sweeping up

Sexual activity online may result in positive experiences for young people, or lead them to engage in risky behaviours possibly resulting in sexual assault or abuse. The aim of our study was to investigate associations between online sexual behaviours among Swedish youth and background factors as well as aspects of wellbeing. The behaviours investigated were: having sex online with a contact met o

Nanostructured neural interfaces, comprising nanotubes or nanowires, have the potential to overcome the present hurdles of achieving stable communication with neuronal networks for long periods of time. This would have a strong impact on brain research. However, little information is available on the brain response to implanted high-aspect-ratio nanoparticles, which share morphological similaritie

The acquisition of nutrients is fundamental for the maintenance of bodily functions, growth, and reproduction in animals. As a result, fitness can be maximized only when animals are able to direct their attention to foods that reflect their current nutritional needs. Despite significant literature documenting the fitness consequences of nutrient composition and preference, less is known about the

Cathodoluminescence at 8 K is used to compare the optical properties of AlGaAs-capped GaAs nanowires, grown by metal-organic vapour phase epitaxy and seeded by gold particles prepared by different methods. Six different methods were used to fabricate and deposit gold seed particles onto GaAs substrates: colloid particles, aerosol particles and particles defined by electron beam lithography. The na

Three sets of research criteria are available for diagnosis of Alzheimer's disease in subjects with mild cognitive impairment: the International Working Group-1, International Working Group-2, and National Institute of Aging-Alzheimer Association criteria. We compared the prevalence and prognosis of Alzheimer's disease at the mild cognitive impairment stage according to these criteria. Subjects wi