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Comparison of the image rejection between the passive and the Gilbert mixer

This paper presents a comparison of the image rejection between Gilbert mixer and the passive mixer. A simple model for mixers is set up, and the image rejection performance of passive and Gilbert mixer is analyzed based on it. Simulations and calculations were done to compare the image rejection of the two mixers. The results show that the Gilbert mixer, comparing with the passive one, shows a st

Modelling multi-scale deformation of amorphous glassy polymers with experimentally motivated evolution of the microstructure

Novel experimental data, obtained recently using advanced multi-scale experiments, have been used to develop a micro-mechanically motivated constitutive model for amorphous glassy polymers. Taking advantage of the experiments, the model makes use of a microstructural deformation gradient to incorporate the experimentally obtained deformation of the microstructure, as well as its evolving orientati

Cryogenic hydrogen cooling of heated moderator vessel

In ESS, a pulsed proton beam of 5 MW mean power will hit a tungsten target to generate neutrons by spallation. The pulses are 2.86 ms long and occur with 14 Hz; the power within a pulse is 125 MW. Only centimeters from the target, the neutrons are moderated by liquid hydrogen in aluminium vessels. The deposited power heats the surrounding structures and fluids which are circulated and cooled. The

Lateral Protein-Protein Interactions at Hydrophobic and Charged Surfaces as a Function of pH and Salt Concentration

Surface adsorption of Thermomyces lanuginosus lipase (TLL) - a widely used industrial biocatalyst - is studied experimentally and theoretically at different pH and salt concentrations. The maximum achievable surface coverage on a hydrophobic surface occurs around the protein isoelectric point and adsorption is reduced when either increasing or decreasing pH, indicating that electrostatic protein-p

Intracellular C3 protects β-cells from IL-1β-driven cytotoxicity via interaction with Fyn-related kinase

One of the hallmarks of type 1 but also type 2 diabetes is pancreatic islet inflammation, associated with altered pancreatic islet function and structure, if unresolved. IL-1β is a proinflammatory cytokine which detrimentally affects β-cell function. In the course of diabetes, complement components, including the central complement protein C3, are deregulated. Previously, we reported high C3 expre

Frågan om anonymiserade examinationer ur ett pedagogiskt perspektiv

Anonymisation of assessments has been discussed for decades. It stems from a concern about unduly bias in assessment and grading. In Sweden, anonymised assessments were introduced in many universities a decade ago. It was rarely preceded by discussions on potential pedagogical consequences. Recent research on the effects of anonymisation does not confirm the hypothesis of reduced bias in grading.

Coeliac disease : what can we learn from prospective studies about disease risk?

Paediatric prospective studies of coeliac disease with longitudinal collection of biological samples and clinical data offer a unique perspective on disease risk. This Review highlights the information now available from international paediatric prospective studies on genetic and environmental risk factors for coeliac disease. In addition, recent omics studies have made it possible to study comple

Parenting strategies around young children’s education in urban China : intensive, responsible and stratifying

This project investigates the empirical realities of shifting norms and practices around young children’s education in urban East Asia. In particular, it examines how parenting strategies are entangled with aspirations for human capital accumulation and upward social mobility, as well as the best interest of the child, and how these notions are reconciled and enacted differently along gender, gene

Nanofiltration at elevated temperatures - An analysis of performance and economics

Nanofiltration is nowadays established in many industries for the separation and purification of aqueous solutions. The maximum operating temperature of commercial nanofiltration membrane is often given with 50 – 60 ºC based on the three-layer structure of membranes consisting of a polyester or polypropylene support paper with a polysulphone support layer and an active layer of polyamide. Operatin