Coarse graining of slow variables in dynamic simulations of soft matter

A new Brownian dynamics model is presented to describe the coarse grain dynamics of particles with long-lived memory. Instead of solving a set of generalized Langevin equations we introduce a set of variables describing the slowly fluctuating thermodynamic state of the ignored degrees of freedom. These variables give rise to additional transient forces on the simulated particles, whose interpretation provides a new way of thinking about memory effects in soft-matter physics. We illustrate the proposed method by simulating shear thinning of synthetic resins.\u

Theology in Tennyson

Thesis (M.A.)--Boston Universit

Automatic analysis of transperineal ultrasound images

This thesis focuses on the automatic image analysis of transperineal ultrasound (TPUS) data, which is used to investigate female pelvic floor problems. These problems have a high prevalence, but the understanding of pelvic floor (dys-)function is limited. TPUS analysis of the pelvic floor is done manually, which is time-consuming and observer dependent. This hinders both the research into interpretation of TPUS data and its clinical use. To overcome these problems we use automatic image analysis. Currently, one of the main methods used, to analyse the TPUS is manually selecting and segmenting the slice of minimal hiatal dimensions (SMHD). In the first chapter of this thesis we show that reliable automatic segmentation of the urogenital hiatus and the puborectalis muscle in the SMHD can be successfully implemented, using deep learning. Furthermore, we show that this can also be used to successfully automate the process of selecting and segmenting the SMHD. 4D TPUS is available in the clinical practice but by the aforementioned method only provides 1D and 2D parameters. Therefore, information stored within TPUS about the volume appearance of the pelvic floor muscles and muscle functionality is not analyzed. In the third chapter of this thesis we propose a reproducible manual 3D segmentation protocol of the puborectalis muscle. The resulting manual segmentations can be used to train active appearance models and convolutional neural networks, these algorithms can be used for reliable automatic 3D segmentation. In the fifth chapter of we show that on this data it is possible to identify all subdivisions of the main pelvic floor muscle group, the levator ani muscles, on new TPUS data. In the last chapter we apply unsupervised deep learning to our data and show that this can be used for classification of the TPUS data. The segmentation results presented in this thesis are an important step to reduce the TPUS analysis time and will therefore ease the study of large populations and clinical TPUS analysis. The 3D identification and segmentation of the levator ani muscle subdivisions helps to identify if they are still intact. This is an important step to better informed clinical decision-making

De noodzaak en effectiviteit van het Nederlandse landbouwbeleid van Marshall-plan tot Mansholt - plan

Rede Wageninge

A domain-general monitoring account of language switching in recognition tasks : evidence for adaptive control

Language switching experience is assumed to have an effect on domain-general control abilities in bilinguals, but previous studies on the relationship between these two variables have generated mixed results. The present study investigated the effects of bilingual experiences on the interaction between language switching and domain-general control. Thirty-two Dutch-French bilingual young adults executed a bilingual categorisation task to assess their language switching abilities and a Simon task to assess domain-general control. The results show that global response times on the Simon task were correlated to the forward switch cost (from L1 to L2); moreover, interestingly, the forward switch cost was found to be related to recent language exposure but not to the age of second language acquisition. We suggest a monitoring account of language switching to integrate the first finding with previous studies and we interpret the second finding as support for the adaptive control hypothesis

Chaos en orde in de wereldlandbouw

Gebrek aan elasticiteit, solidariteit en autoriteit / door P.C. van den Noort ; Internationale arbeidsverdeling en marktorde / door J. de Hoogh ; Redes 6-12-1979 Wageninge

Screening Mothers: Representations of motherhood in Australian films from 1900 to 1988.

Although the position of mothers has changed considerably since the beginning of the twentieth century, an idealised notion of motherhood persists. The cinema provides a source of information about attitudes towards mothering in Australian society which is not diminished by the fact that mothers are often marginal to the narrative. While the study recognises that cinematic images are not unconditionally authoritative, it rests on the belief that films have some capacity to reflect and influence society. The films are placed in an historical context with regard to social change in Australian society, so that the images can be understood within the context of the time of the making and viewing of the films. The depictions of the mother are scrutinised with regard to her appearance, her attitude, her relationship with others and the expectations, whether explicit or implicit, of her role. Of particular significance is what happens to her during the film and whether she is punished or rewarded for her behaviour. The conclusions reached after analysis are used to challenge those ideas which assume that portrayals of motherhood are unchangeable and timeless. The study examines Australian feature films from 1900 to 1988. To augment its historical focus, it uses sociological, psychoanalytical and feminist theoretical writing with special relevance for motherhood and mothering practice. Looking at areas of importance to mothers, it comprises an exploration of what makes a mother good or bad; the significance of the birth of female and male children; the relationship of mothers to daughters; the mother's sexuality and the metaphor of the missing mother. It shows that images of motherhood on screen are organised according to political, social and economic requirements in the community. Further, films frequently show mothers in traditional roles which are useful for maintaining notions of patriarchal privilege in society. The analysis exposes stereotypical depictions of motherhood which are often inaccurate, unfair and oppressive to women

Ambulatory movement analysis systems in clinical motor function assessment: Applications of inertial sensors and an instrumented force shoe

Lankhorst, G.J. [Promotor]Harlaar, J. [Copromotor

The economic significance of speculations in science

The growth and development of economies can be described as a logistic evolution process, for which we have a mathematical formulation. This shows that without innovation highly developed economies go into recession or even depression. To prevent or repair this we need a stream of inventions, leading to innovations. Those inventions are based on new developments in science. For that we need scientists who are engaged in speculative theories. However, in times of growth there is no need for such people, they even become outsiders or mavericks. Until the phase of growth reaches its end and consequently the economies go into recession. It is very difficult for most people to see what is happening then as they are used to the continuous growth. When the insight comes it is difficult to find new inventive scientists within the good old organization of science. Some mavericks are perhaps present in their own way and hopefully they find their way to new science, new paradigms and inventions. Only then the economies can get out of the depressed stat