Self-reported adverse childhood experiences and quality of life among children in the two last grades of Dutch elementary education

Background Adverse Childhood Experiences (ACEs) may have a life-long impact on mental health and are related to physical disease, such as diabetes and cardiovascular diseases in adulthood. Research on ACEs suffers from recall bias when performed with adults. Objective To estimate the prevalence of ACEs and the interrelationships between ACEs as...

BMI-for-age in South Asian children of 0–20 years in the Netherlands: secular changes and misclassification by WHO growth references

Background: South Asians are prone to cardiometabolic disease at lower BMI levels than most other ethnic groups, starting in childhood. The magnitude of BMI misclassifications is unknown. Aim: To compare the BMI distribution of contemporary South Asian 0–20 year olds in the Netherlands with: (1) The South Asian norm reference (secular trends);...

Using bio- and neurofeedback to enhance psychological recuperation in Afghanistan veterans

Both bio- and neurofeedback (training) protocols are hypothesized to be beneficial in the management of arousal states and psychological recuperation after aversive and potentially traumatic experiences. As military deployments in theatres like Iraq or Afghanistan imply an significant risk for potentially traumatic experiences and stress related...

Stochastic modelling of migration from polyolefins

A method is presented to predict diffusion coefficients in polyolefins using stochastic modelling. A large number of experimental diffusion coefficients, published in the literature as one dataset, was used to derive probability distributions of diffusion coefficients in the polymers low-density polyethylene and linear low-density polyethylene,...

Packaging: Predicitng migration

Additive diffusion from LDPE slabs into contacting solvents as a function of solvent absorption

This article describes the simultaneous diffusion of a migrant and a solvent in low density polyethylene (LDPE). The migrant (Irganox 1076) moves out of the slab, while the solvent (isooctane, n-heptane or cyclohexane) moves inwards. Solvent absorption was measured separately by following the increase of the mass of the slab in time. It can be...

Predictive modelling of migration from packaging materials into food products for regulatory purposes

Migration of low-molecular weight compounds is one of the most important problems of packaging plastics and other plastics intended to come into contact with food products. Since migration experiments are time consuming and expensive, predictive modelling has been introduced as a promising alternative. The main objective of this article is to...

Direct measurement of additive migration from low-density polyethylene as a function of space and time

A method, based on microtoming and GC analysis, for studying migration of additives inside polymers as a function of space and time was validated for Irganox 1076 migrating from low-density polyethylene to ethanol. The consistency of the mass balance of the total amount of Irganox 1076 in the polymer and the solvent after different incubation...

Influence of solvent absorption on the migration of Irganox 1076 from LDPE

The effect of solvent absorption on additive migration was studied by relating the diffusion coefficient (D) of Irganox 1076 to the maximum solvent absorption of different solvents in low-density polyethylene (LDPE) film. Solvents tested were ethanol, isopropanol, isooctane, ethylacetate, cyclohexane, tributyrin, tricaprylin and olive oil....

Duflexpronovatie II. Toetsing van een alternatief raamwerk voor het ontwerpproces

Dit artikel is het derde artikel in een reeks over het IFD demonstratieproject Duflexpronovatie' in het TVVL magazine. In het eerste artikel `Duflexpronovatie' [ 1 J is vanuit de visie van de opdrachtgever een beschrijving gegeven van de doelstelling van het project en de relatie met de thema's Industrieel, Flexibel en Demontabel Bouwen. Het...

Functional foods: position and future perspectives