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File-Sharing – A Threat to Intellectual Property Rights, or is the Music Industry Just Taking Us for a Spin?

File-sharing has become synonym with the “digital economy” where large music conglomerates as well as certain artist voice strong concern over the impact on their bottom line. This research analyzes the music industry, which has been heavily impacted by a major technological shift i.e. the invention, and rollout, of the Internet. We look to the technological shift that has enabled the downloading

Particle evolution in Mg-Zn-Zr alloy processed by integrated extrusion and equal channel angular pressing : Evaluation by electron microscopy and synchrotron small-angle X-ray scattering

The evolution of intermetallic precipitate particles in Mg-Zn-Zr alloy ZK60 during thermomechanical processing by integrated extrusion and equal channel angular pressing was investigated in detail. Electron microscopy was employed to analyse individual particles and their orientation within the Mg matrix, while small-angle X-ray scattering (SAXS) was used for an assessment of global particle behav

Harmonic-structured copper : Performance and proof of fabrication concept based on severe plastic deformation of powders

Pure copper (Cu) having bimodal 'harmonic structure' (HS) was fabricated by a technique based on severe plastic deformation of powders, which involved tailored mechanical milling and spark plasma sintering. The harmonic-structured Cu demonstrates a unique combination of high strength and large elongation superior to its homogeneous as well as bimodal heterogeneous counterparts. Specific features o

Dynamic properties of an ultrafine-grained Mg-Zn-Zr alloy

The effect of ultrafine-grained structure formation in Mg-Zn-Zr alloy ZK60 on its mechanical response was investigated at strain rates ranging from quasi-static to dynamic regimes. The study demonstrated that the strength characteristics of the material rise significantly with increasing strain rate, while its ductility is reduced. These effects are particularly pronounced in the dynamic loading r

Improvement of fatigue strength of a Mg-Zn-Zr alloy by integrated extrusion and equal-channel angular pressing

Fatigue performance under axisymmetric push-pull loading of a magnesium alloy Mg-6Zn-0.5Zr (ZK60) after processing by integrated extrusion and equal-channel angular pressing was investigated. Such processing was shown to nearly treble the endurance limit of the alloy, raising it to 160 MPa. It was established that the high-cycle fatigue performance of ZK60 is primarily controlled by dislocation su

Formation of bimodal grain structures in high purity Al by reversal high pressure torsion

Bimodal grain structure was fabricated in a 99.99% purity aluminium by high pressure torsion at ambient temperature in reversal deformation mode at a strain amplitude Δε = 1, strain rate ̇=1.1×10 -1s-1 and hydrostatic pressure P = 5 GPa. Enhanced boundary mobility due to the high purity of the aluminium and homologous temperature coupled with reversal simple shear deformation are found to be respo

Social/economic costs and health-related quality of life of mucopolysaccharidosis patients and their caregivers in Europe

Objectives: To assess the health-related quality of life (HRQOL) of patients with mucopolysaccharidosis (MPS) and their caregivers and to quantify the disease-related costs from a societal perspective. Methods: In the context of a multi-country study of rare diseases (BURQOL-RD project), a cross-sectional survey was performed among MPS patients in seven European countries. Data on demographic char

Refinement of microstructure and mechanical properties of titanium processed by twist extrusion and subsequent rolling

Microstructure and mechanical properties as well as thermal stability of commercially pure titanium VT1-0 subjected to severe plastic deformation by twist extrusion (TE) were studied before and after low-temperature annealing and cold rolling. TE leads to a refinement of structural fragments to sizes of less than 1 μm, enhancement of strength, and the appearance of strong anisotropy of mechanical

Gastrointestinal and liver disease in Adult Life After Childhood Cancer in Scandinavia : A population-based cohort study

Survival after childhood cancer diagnosis has remarkably improved, but emerging evidence suggests that cancer-directed therapy may have adverse gastrointestinal late effects. We aimed to comprehensively assess the frequency of gastrointestinal and liver late effects among childhood cancer survivors and compare this frequency with the general population. Our population-based cohort study included a

Detailed gene dose analysis reveals recurrent focal gene deletions in pediatric B-cell precursor acute lymphoblastic leukemia

To identify copy number alterations (CNAs) in pediatric B-cell precursor acute lymphoblastic leukemia (BCP ALL), array comparative genomic hybridization was performed on 50 cases; detected CNAs were validated in a cohort of 191 cases analyzed by single nucleotide polymorphism arrays. Apart from CNAs involving leukemia-associated genes, recurrent deletions targeting genes not previously implicated

Assessing information on food packages

PurposeThe purpose of this paper is to present an experimental study which aims at assessing the potentially misleading effect of graphic elements on food packaging. The authors call these elements potentially misleading elements (PMEs) as they can give customers false expectations. They are either highlighted numerical information (30 per cent fibre, 8 per cent fat, 100 per cent natural […]) or p

Comparison between ultrafiltration and nanofiltration hollow-fiber membranes for removal of natural organic matter : A pilot study

Increasing trends of natural organic matter (NOM) in surface water in Nordic countries may cause future problems for drinking water producers. Emerging membrane technology, such as ultrafiltration (UF) and nanofiltration (NF), has the potential to produce safe drinking water of good quality from sources with high organic concentrations. In the present pilot study, surface water from three sources