Search results

Filter

Filetype

Your search for "*" yielded 529943 hits

Empirical genome evolution models root the tree of life

A reliable phylogenetic reconstruction of the evolutionary history of contemporary species depends on a robust identification of the universal common ancestor (UCA) at the root of the Tree of Life (ToL). That root polarizes the tree so that the evolutionary succession of ancestors to descendants is discernable. In effect, the root determines the branching order and the direction of character evolu

An exploration of consumers’ experiences in physical stores : comparing consumers’ and retailers’ perspectives in past and present time

In this paper, we explore consumers’ in-store experiences and their components, from both a consumer and retailer perspective. This is a replication of a study we performed in 2006 and thus we also examine how the role of the physical store has changed over the last decade. We use the Critical Incident Technique (CIT) to improve our understanding of consumers’ in-store experiences. Moreover, we co

Sharp Bounds for Calderón-Zygmund Operators in a Vector-Valued Setting

In this thesis we extend several classical results about Calderón-Zygmund operators to spaces of vector-valued functions. We first obtain bounds for the norm of dyadic Haar shift operators using a Bellman function technique, and then apply the representation theorem to obtain corresponding results for general Calderón-Zygmund operators. We discuss several results for UMD space-valued Calderón-Zygm

Why the Social Sciences are Irreducible

It is often claimed that the social sciences cannot be reduced to a lower-level individualistic science. The standard argument for this position (usually labelled explanatory holism) is the Fodorian multiple realizability argument. Its defenders endorse token-token(s) identities between “higher-level” social objects and pluralities/sums of “lower-level” individuals (a position traditionally called

Control-Oriented Modeling of Soot Emissions in Gasoline Partially Premixed Combustion with Pilot Injection

In this paper, a control-oriented soot model was developed for real-time soot prediction and combustion condition optimization in a gasoline Partially Premixed Combustion (PPC) Engine. PPC is a promising combustion concept that achieves high efficiency, low soot and NOx emissions simultaneously. However, soot emissions were found to be significantly increased with high EGR and pilot injection, the

The change of longitudinal relaxation rate in oxygen enhanced pulmonary MRI depends on age and BMI but not diffusing capacity of carbon monoxide in healthy never-smokers

Objective: Oxygen enhanced pulmonary MRI is a promising modality for functional lung studies and has been applied to a wide range of pulmonary conditions. The purpose of this study was to characterize the oxygen enhancement effect in the lungs of healthy, never-smokers, in light of a previously established relationship between oxygen enhancement and diffusing capacity of carbon monoxide in the lun

Symbolic ecclesiastical representations in the High Middle Ages landscape : A single-case study in northern Scandinavia

A regional examination of representations of geographical ecclesiastical features (boundaries, churches, and land use) in northern Scandinavia during the High Middle Ages was performed, using a peripheral parish as a single case. The analysis was based on historical maps, processed using microhistory and retrogressive approaches, and guided by theories of territoriality and landscape. The results

Multiple discrimination at work: Gaining entry to the Swedish workforce

This article discusses the role played by the law in personal experiences of marginalization from Swedish society from the perspective of sociology of law through the framework of intersectional. Like many legal issues, discrimination dwells in the world of everyday life, work life, and society. While most of the social sciences deploy a varied array of methods and methodological approaches, acros

Reflexivt ledarskap

Ett reflexivt ledarskap handlar om att överväga vad vi menar med ledarskap, vad det kan göra och inte göra, när det kan fungera och när det inte är bästa alternativet. Författarnas ambition är att uppmuntra chefer och andra att tänka både bredare och djupare om hur man bäst samordnar arbete i moderna organisationer. I detta ingår att även lyfta fram och diskutera alternativen till ledarskap.Boken

Syndecan Heparan Sulfate Proteoglycans: Regulation, Signaling and Impact on Tumor Biology

Virtually all animal cells express heparan sulfate proteoglycans on the cell surface and in the extracellular matrix. Syndecans are a major group of transmembrane proteoglycans functioning as receptors that mediate signal transmission from the extracellular microenvironment to the cell. Their heparan sulfate chains, due to their vast structural diversity, interact with a wide array of ligands incl

Short and Robust Experiments in Relay Autotuners

This paper demonstrates how second-order time-delayed models adequate for PID controller synthesis can be identified from significantly shorter relay experiments, than used in previous publications to obtain first-order time-delayed models. Apart from having good noise robustness properties, the proposed method explicitly addresses non-stationary initial states of the dynamics to be identified, an

Culture and personality disorders : Self-harm in Sweden: A national response with treatment implications for those with or without borderline perso- nality disorder

Objectives: The purpose of this presentation is to discuss Sweden’s national recommendations for mental health treatment provided to self-harming individuals in the country. The recommendations were based upon a Self-Harm Quality Standard (2013) published by the National Institute for Health and Care Excellence (NICE) adapted to Swedish health care and cultural context. Methods: A review and synt

Local adaptation along an environmental cline in a species with an inversion polymorphism

Polymorphic inversions are ubiquitous across the animal kingdom and are frequently associated with clines in inversion frequencies across environmental gradients. Such clines are thought to result from selection favouring local adaptation; however, empirical tests are scarce. The seaweed fly Coelopa frigida has an α/β inversion polymorphism, and previous work demonstrated that the α inversion freq

The phosphorylation motif at serine 225 governs the localization and function of sphingosine kinase 1 in resistance arteries

OBJECTIVE-: The purpose of this study was to characterize a phosphorylation motif at serine 225 as a molecular switch that regulates the pressure-dependent activation of sphingosine kinase 1 (Sk1) in resistance artery smooth muscle cells. METHODS AND RESULTS-: In isolated hamster gracilis muscle resistance arteries, pressure-dependent activation/translocation of Sk1 by ERK1/2 was critically depend

Designing interactive systems for balance rehabilitation after stroke

This paper presents four different tangible interactive prototypes designed to support the continuation of balance rehabilitation at home. The interactive prototypes are designed to provide a more enjoyable and experience when performing balance rehabilitation exercises. Early results from preliminary tests with stroke survivors and rehabilitation professionals are promising. The aim of the design