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Dynamic contrast-enhanced QSM for perfusion imaging : a systematic comparison of ΔR2*- and QSM-based contrast agent concentration time curves in blood and tissue

OBJECTIVE: In dynamic susceptibility contrast MRI (DSC-MRI), an arterial input function (AIF) is required to quantify perfusion. However, estimation of the concentration of contrast agent (CA) from magnitude MRI signal data is challenging. A reasonable alternative would be to quantify CA concentration using quantitative susceptibility mapping (QSM), as the CA alters the magnetic susceptibility in

Uricemia in juvenile pigs model : Effect of nephrectomy and potassium oxonate

Uric acid is the end product of dietary and endogenous purine metabolism in humans and higher primates. In all lower mammalian species it is converted to allantoin by liver uricase. The aim of this study was to investigate the uric acid turnover in pig model after nephrectomy surgery, fructose-enriched diet and potassium oxonate application. The first experiment was performed using 4 intact contro

Implementation framework for bim-based risk management

There is currently an imbalance with regards to the way that risks are treated in construction projects. Risks associated with structural failures as well as construction safety risks are often in focus while building performance risks (e.g. related to moisture or energy performance) receive less attention. These types of risks often disproportionately affect the end users/owners and can in many c

The Role of Ice Splintering on Microphysics of Deep Convective Clouds Forming Under Different Aerosol Conditions : Simulations Using the Model With Spectral Bin Microphysics

Observations during the Ice in Clouds Experiment-Tropical (ICE-T) field experiment show that the ice particles concentration in a developing deep convective clouds at the level of T = −15 °C reached about 500 L−1, that is, many orders higher than that of ice-nucleating particle. To simulate microphysics of these clouds, the 2-D Hebrew University Cloud model (HUCM) with spectral bin microphysics wa

Major differences between human atopic dermatitis and murine models, as determined by using global transcriptomic profiling

Background Atopic dermatitis (AD) is caused by a complex interplay between immune and barrier abnormalities. Murine models of AD are essential for preclinical assessments of new treatments. Although many models have been used to simulate AD, their transcriptomic profiles are not fully understood, and a comparison of these models with the human AD transcriptomic fingerprint is lacking. Objective We

On the Use of Rotational CARS on Polyatomics and in Time Domain

This thesis work concerns the further developments of dual-broadband rotational coherent anti-Stokes Raman spectroscopy (RCARS) through experimental and theoretical investigations. Rotational CARS is an established technique for gas-phase thermometry and concentration measurement with major applications in combustion diagnostics. The technique has previously mainly been applied on species with lin

Dystonia in children and adolescents : A systematic review and a new diagnostic algorithm

Early aetiological diagnosis is of paramount importance for childhood dystonia because some of the possible underlying conditions are treatable. Numerous genetic and non-genetic causes have been reported, and diagnostic workup is often challenging, time consuming and costly. Recently, a paradigm shift has occurred in molecular genetic diagnostics, with next-generation sequencing techniques now all

Peasant aristocrats? Wealth, social status and the politics of Swedish farmer parliamentarians 1769–1895

Sweden was unique in early modern Europe, in that its parliament included a peasant farmer estate. It is commonplace in Swedish and international research to consider the peasant farmer politicians as guarantors of a liberal and egalitarian path of development. In the Swedish-language literature on political history, these people are often seen as rather narrow-minded, their common political progr

Cooling the Envelopes of Gas Giants : Accretion, structure formation and observability

We know now that discs of gas and dust, so-called protoplanetary discs, form planets as side-products of the naturally occurring star formation process throughout the Milky Way. Young, growing planets in such discs are commonly referred to as protoplanets. In about 10\% of the so-far observed stars, this planet formation process leads to the occurrence of giant planets, such as Saturn, Jupiter, or

CDK9 Regulates Apoptosis of Myoblast Cells by Modulation of microRNA-1 Expression

Cdk9 is the catalytic core of the positive transcription elongation factor b (P-TEFb) and regulates transcriptional elongation factors by phosphorylation of RNA pol II. Apart from its role on myogenic gene expression, Cdk9 regulation of muscle-specific microRNAs in the early stage of cardiomyogenesis is poorly understood. Here we demonstrate that Cdk9 not only regulates myogenic transcription fact

High-accuracy modeling of antibody structures by a search for minimum-energy recombination of backbone fragments

Current methods for antibody structure prediction rely on sequence homology to known structures. Although this strategy often yields accurate predictions, models can be stereo-chemically strained. Here, we present a fully automated algorithm, called AbPredict, that disregards sequence homology, and instead uses a Monte Carlo search for low-energy conformations built from backbone segments and rigi

Interactions in aqueous salt solutions : Atomistic modelling versus experiment

The research in this thesis investigates how atoms and molecules constituting aqueous salt solutions interact using computational approaches, namely Monte Carlo simulations and molecular dynamics simulations. In the first paper, an atomistic model was developed for aqueous solutions of sodium thiocyanate and potassium thiocyanate (NaSCN and KSCN). The model reproduced several experimentally measur

Do corporate sustainability practices enhance organizational economic performance?

Purpose – The purpose of this study is to clarify the relation between sustainability practices and financial and market performance, and also, the role of non-financial performance outputs in this relation. Corporate sustainability is a growing area of importance for organizational development. Managing sustainability practices successfully is an imperative in achieving competitive advantage. Des

”För illa att vara sannt” – svenska nationalekonomers reaktion på Keynes bok om Versaillesfreden och skadeståndskraven på Tyskland

I december 1919 utkom John Maynard Keynes med sin varning för konsekven- serna av Versaillesfreden, The Economic Consequences of the Peace. Boken gjorde honom i ett slag världsberömd. Den översattes snabbt till svenska och kommenterades av ledande svenska nationalekonomer som David Davidson, Gustav Cassel och Eli Heckscher. De ställde sig alla helhjärtat bakom Keynes budskap. Knut Wicksell däremot

Pediatric Insulin Injection Technique : A Multi-Country Survey and Clinical Practice Implications

Introduction: The 2015 Insulin Injection Technique Questionnaire survey involving 13,289 patients included 898 (6.8%) patients in the pediatric age range (≤ 18 years). Methods: The younger patients included in the questionnaire survey were grouped according to age: Group 1 (G1), 0–6 years, n = 85; Group 2(G2), 7–13, n = 423; Group 3 (G3), 14–18, n = 390. The injection technique was evaluated by me

Relationship between water quality and macro-scale parameters (land use, erosion, geology, and population density) in the Siminehrood River Basin

To date, few studies have investigated the simultaneous effects of macro-scale parameters (MSPs) such as land use, population density, geology, and erosion layers on micro-scale water quality variables (MSWQVs). This research focused on an evaluation of the relationship between MSPs and MSWQVs in the Siminehrood River Basin, Iran. In addition, we investigated the importance of water particle trave

Severe retinal degeneration at an early age in Usher syndrome type 1B associated with homozygous splice site mutations in MYO7A gene

Purpose: Usher syndrome is the most common cause of deafness associated with visual loss of a genetic origin. The purpose of this paper is to report very severe phenotypic features of type 1B Usher syndrome in a Saudi family affected by positive homozygous splice site mutation in MYO7A gene. Methods: Affected siblings went through detailed history. Complete ophthalmic examination was done. Imaging