Use of advanced corrosion monitoring for risk based management of concrete structures

Reinforced concrete is a cost effective material used widely in our infrastructure. The durable combination of steel and concrete provides safety and serviceability. Normally, the physics and chemistry of concrete protects reinforcing steel against corrosion. Over time this protection can be lost due to aggressiveness from the environment, for...

Glass-aluminium bonded joints ; testing, comparing and designing for the ATP

This article presents the research to the bonded joints of the All Transparent Pavilion (ATP), an experimental project built in November 2004 at the faculty of Architecture in Delft. The pavilion is designed to use structural glass elements, bonded with Delo Photobond GB 368, a photo-catalytic transparent adhesive. To avoid bonding on-site and...

Effects of polypropylene fibres in concrete: Microstructure after fire testing and chloride migration

Explosive spalling of pieces of concrete from the heated surface is considered to be the most dangerous effect of damage of concrete subjected to intense fire attack, especially when it occurs in restricted areas such as underground tunnels. Recent investigations have revealed that the amount of explosive spalling and the extent of cracking can...

Arbeidsongevallen met lichamelijk en geestelijk letsel en de relatie met ziekteverzuim

In dit artikel staat centraal in hoeverre arbeidsongevallen met lichamelijk en geestelijk letsel samengaan met verzuim van werknemers. Hiervoor zijn analyses uitgevoerd op een groot databestand met gegevens van 10.075 Nederlandse werknemers. Dit bestand is representatief voor alle werknemers in Nederland wat betreft geslacht, leeftijd en...

Effectiviteit van re-integratie: onbenutte potenties van privatisering

In deze bijdrage is de netto-effectiviteit van private reïntegratiebedrijven vergeleken met die van de publieke arbeidsvoorziening. Daarnaast is het effect van privatisering aan de opdrachtgeverszijde onderzocht door de WAO-instroom na eigenrisicodragen te analyseren. De onderzoekers concluderen ondere andere dat de match tussen opdrachtgever en...

Activation of nuclear receptor Nur77 by 6-mercaptopurine protects against neointima formation

BACKGROUND - Restenosis is a common complication after percutaneous coronary interventions and is characterized by excessive proliferation of vascular smooth muscle cells (SMCs). We have shown that the nuclear receptor Nur77 protects against SMC-rich lesion formation, and it has been demonstrated that 6-mercaptopurine (6-MP) enhances Nur77...

Twinson-project krijgt vervolg: Vermindering discards belangrijkste doelstelling

Study of wettability and improvement of adhesion of UV curable powder coatings on polypropylene substrates

Different benzophenone type photoinitiators were photografted onto polypropylene. The polymer surfaces were analysed by means of contact angle measurements, UV spectroscopy, and FTIR-ATR. The modified samples showed a better wettability and higher surface energies increasing from 26 mN/m for pure polypropylene up to 36 mN/m for the modified...

Multimode equivalent networks for the design and analysis of frequency selective surfaces

A modular technique originally proposed for waveguide junctions, the multimode equivalent network approach based on the integral equation formulation (IEMEN), is extended to the analysis of multilayer Frequency Selective Surfaces integrated with waveguide array antennas. This technique represents each layer and transition between layers in terms...

Low levels of prenatal alcohol exposure can cause fetal damage

Space sickness on earth

During the first days in space, i.e., after a transition from 1G to 0G, more than 50% of the astro- (and cosmonauts) suffer from the Space Adaptation Syndrome (SAS).The symptoms of SAS, like nausea and dizziness, are especially provoked by head movements. Astronauts have mentioned close similarities between the symptoms of SAS and the symptoms...

Henoch-Schönlein purpura in children: An epidemiological study among Dutch paediatricians on incidence and diagnostic criteria

Background: The aim of the present study on the occurrence of Henoch-Schönlein Purpura (HSP) in Dutch children is to give some insight into the epidemiology of HSP in the Netherlands, to record the diagnostic criteria used by Dutch paediatricians and to evaluate the accuracy of the latter using the presence of IgA in the skin when biopsies are...

ACE inhibition with perindopril and endothelial function. Results of a substudy of the EUROPA study: PERTINENT

Objectives: EUropean trial on Reduction Of cardiac events with Perindopril in stable coronary Artery disease [EUROPA] demonstrates reduction in cardiovascular mortality and myocardial infarction for a possible vascular and antiatherosclerotic effect of angiotensin-converting enzyme (ACE) inhibition with perindopril. Our objective was to study...

Chronic PYY3-36 treatment promotes fat oxidation and ameliorates insulin resistance in C57BL6 mice

PYY3-36 is a gut-derived hormone acting on hypothalamic nuclei to inhibit food intake. We recently showed that PYY3-36 acutely reinforces insulin action on glucose disposal in mice. We aimed to evaluate effects of PYY3-36 on energy metabolism and the impact of chronic PYY3-36 treatment on insulin sensitivity. Mice received a single injection of...