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Interactions of N2O5 and Related Nitrogen Oxides with Ice Surfaces: Desorption Kinetics and Collision Dynamics

The detailed interactions of nitrogen oxides with ice are of fundamental interest and relevance for chemistry in cold regions of the atmosphere. Here, the interactions of NO, NO2, N2O4, and N2O5 with ice surfaces at temperatures between 93 and 180 K are investigated with molecular beam techniques. Surface collisions are observed to result in efficient transfer of kinetic energy and trapping of mol

Practice variation in a longitudinal perspective: a multilevel analysis of the prescription of simvastatin in general practices between 2003 and 2009.

PURPOSE: The Dutch national guideline for Cardiovascular Risk Management advised in 2006 initiation of statin therapy in new patients with simvastatin. After the introduction of this guideline several measures were taken to increase the prescription of simvastatin in general practice. The aim of this paper is to describe the trend and interpractice variation in the relative share of simvastatin in

Atomistic simulations of buckling properties of gold nanowires

The purpose of this work is to present results from an ongoing study on how the presence of surfaces influences the buckling properties of nanowires. This study is performed using molecular statics simulations where the interatomic interaction is modelled using an embedded atom potential (EAM) fitted to gold properties. The considered nanowires have rectangular cross sections with cross sectional

The BILAG multi-centre open randomized controlled trial comparing ciclosporin vs azathioprine in patients with severe SLE.

Objective. To determine whether low-dose ciclosporin was a more effective corticosteroid-sparing agent than AZA in patients with SLE. Methods. Patients with SLE requiring a change or initiation of a corticosteroid-sparing agent and who were taking >/=15 mg of prednisolone/day were randomized to receive either ciclosporin or AZA during this 12-month open-label multi-centre trial. There were strict

Den postpolitiska eran?

De senaste decenniernas samhällsvetenskapliga debatt har kretsat kring föreställningen att det skett ett epokgörande skifte. Industrisamhället har övergått i ett postindustriellt samhälle och moderniteten har ersatts av ett postmodernt tillstånd. Postmodernismen har ansetts markera ett slut för alla stora berättelser, ideologier och politiska projekt om emancipation. Denna era har på så sätt också

Association between polymorphisms in the prostate-specific antigen (PSA) promoter and release of PSA.

Variations in serum prostate-specific antigen (PSA) have been ascribed to A/G nucleotide polymorphisms located at -158 bp (rs266882) and -4643 bp (rs925013), relative to the transcription start site within the promoter of the PSA gene. PSA is also an androgen receptor target (AR) gene and polymorphisms in AR gene are known to affect AR function. Our objective was to compare the impact of these A/G

Asymptotic Behavior of Bayesian Nonparametric Procedures

Asymptotics plays a crucial role in statistics. The theory of asymptotic consistency of Bayesian nonparametric procedures has been developed by many authors, including Schwartz (1965), Barron, Schervish and Wasserman (1999), Ghosal, Ghosh and Ramamoorthi (1999), Ghosal, Ghosh and van der Vaart (2000), Shen and Wasserman (2001), Walker and Hjort (2001), Walker (2004), Ghosal and van der Vaart (2007

Using Spatial Diversity to Detect Narcotics and Explosives Using NQR Signals

Nuclear quadrupole resonance (NQR) offers an unequivocal method of detecting hidden narcotics and explosives. Unfortunately, the practical use of NQR is restricted by the low signal-to-noise ratio (SNR) and means to improve the SNR are vital to enable a rapid, reliable and convenient system. In this correspondence, we develop two multichannel detectors to counter the typically present radio freque

Det är jag som måste ändra mej

Medarbetarna på den dagliga verksamheten Tryckolera är med hela vägen i projektet Mobility and Learning Environments. Visst blir de utforskade men de får själva något rejält tillbaka, betonar forskaren Arne Svensk. Det har varit en svindlande kunskapsresa för alla inblandade. Nu behövs hjälp av andra forskare för att tolka vad som hänt under processen.

Activity limitations before and after surgical carpal tunnel release among patients with and without diabetes.

OBJECTIVES: To evaluate activity limitations before and after carpal tunnel release among patients with and without diabetes, to explore differences between genders and the influence of grip strength on activity limitations. DESIGN: Prospective case-control study. PATIENTS: Thirty-three patients with diabetes and carpal tunnel syndrome (CTS) were age and gender matched with 30 patients without d

Attosecond interferometry: techniques and spectroscopy

Popular Abstract in Swedish Egenskaperna hos de material som utgör och omger oss, som t.ex. färg, struktur och kemiska egenskaper, bestäms av hur elektronerna som är en del av dess byggstenar, atomerna, är strukturerade. Ett sätt att undersöka elektronstrukturen är med hjälp den fotoelektriska effekten. Ljus, elektromagnetiska fält, kan beskrivas som en ström av ljuspartiklar, fotoner, som alla bäThe interaction between an intense laser pulse and a gas medium leads to the emission of coherent bursts of light in the extreme ultraviolet range. This process, known as high-order harmonic generation, has today, almost three decades after its discovery, developed into a reliable source of extremely short (on the order of 100 as) pulses of electromagnetic radiation, with a wide range of applicati

Large Eddy Simulation of Turbulent Flow and Combustion in HCCI Engines

This thesis deals with numerical simulations of the turbulent combustion process in Homogeneous Charge Compression Ignition (HCCI) engines. An accurate and computationally efficient Large Eddy Simulation (LES) model was developed and used throughout this thesis to investigate the development of in-cylinder turbulence, temperature stratification, onset of auto-ignition, and development of the react

X-Stop Versus Decompressive Surgery For Lumbar Neurogenic Intermittent Claudication: A Randomized Controlled Trial With 2 Years Follow-Up.

ABSTRACT: Study Design. Prospective randomized controlled study.Objective. To compare the outcome of indirect decompression by means of the X-Stop implant to conventional decompression in patients with neurogenic intermittent claudication due to lumbar spinal stenosis.Summary of Background Data. Decompression is the golden standard for lumbar spinal stenosis nowadays but afflicted with complicatio

Corporate Ownership and Liquidity in China’s Stock Markets

This thesis consists of an introduction and three self-contained chapters that address liquidity issues related to corporate ownership in the Chinese stock markets. The first paper provides new insight into the relation between foreign institutional investors and stock liquidity by employing the Qualified Foreign Institutional Investor (QFII) scheme in the Chinese stock markets. Unlike many develo