PURPOSE: Advanced radiotherapy treatments require appropriate quality assurance (QA) to verify 3D dose distributions. Moreover, increase in patient numbers demand efficient QA-methods. In this study, a time efficient method that combines model-based QA and measurement-based QA was developed; i.e., the …

The characteristics of a hydrogen plasma in an inductively coupled RF plasma setup were studied using a double Langmuir probe and an optical emission spectrometer. At various settings for the gas pressure, gas ow, RF power and probe position, values were obtained for the electron temperature and plasma …

The treatment of tumours in cancer patients have become more advanced and thus more complex. The verification of the dose distribution, calculated by clinical physicists, have thus become more complicated. VSL has started the development on measurements of absolute dose distributions in an antrhopomorphic …

Achtergrond: Vooralsnog is er geen behandeling bekend welke genezing van artrose kan geven. Vanuit de literatuur zijn er aanwijzingen dat het zinvol is de biomechanische toestand van het artrotische gewricht te herstellen. Met gewrichtsdistractie bij knie- en enkelartrose wordt gepoogd, door middel van …

Background Fatness and fitness both influence cardiometabolic risk. Objective The purpose of this study was to investigate whether childhood fatness and increasing fatness from childhood to adolescence are associated with cardiometabolic risk during adolescence and how fitness affects this association. …

The human population on earth has increased from 3 billion to 6 billion since 1960 and nearly 25% of the earth's terrestrial surface is now cultivated. The human pressure causes habitat fragmentation and has reduced populations of large carnivores throughout the world. Livestock depredation is the most …

We present a novel method to achieve light trapping in thin film silicon solar cells. Unlike the commonly used surface textures, such as Asahi U-type TCO, that rely on light scattering phenomena, we employ embossed periodically arranged micro-pyramidal structures with feature sizes much larger than the …

De levendbarende hagedis is in aantal sterk afgenomen in Nederland. Om achter de mogelijke oorzaak te komen en zo gericht maatregelen te kunnen treffen voor het behoud van de levendbarende hagedis, heeft Stichting RAVON de auteurs gevraagd om onderzoek te doen naar de populatie levendbarende hagedissen …

The aim of the present study was to gain a better understanding of the content characteristics that make online consumer reviews a useful source of consumer information. To this end, we content analyzed reviews of experience and search products posted on Amazon.com (N = 400). The insights derived from …

Een aantal van deze natuurgebieden zijn geschikt als broedhabitat voor ganzen die voornamelijk foerageren in de omliggende agrarische gebieden. De agrariërs ondervinden hierdoor voor het merendeel gewasschade. Ook op de terreinen van Staatsbosbeheer kan er schade worden ondervonden. Het gaat hier hoofdzakelijk …