Kenniseconomie vraagt actieve houding

De beoogde kenniseconomie vergt niet alleen investeringen, maar vooral een meer ondernemende, verantwoordelijke houding van iedere burger, aldus Thijs Boekhoff, Paul Iske en Mathieu Weggeman

"Physical education", "health and physical education", "physical literacy" and "health literacy": Global nomenclature confusion.

The title “physical education” (PE) is the traditional taxonomy used to represent the education discipline. Health and physical education (HPE) is regarded to be an all-encompassing health-dimensional title that has been recently embraced by various education systems around the world. Hence, it can be argued that PE and HPE are often used interchangeably by educationalists, portraying a similar meaning and understanding. This can be regarded as internationally confusing, as historically PE and HPE have represented different and at times paradoxical discourses and ideologies. Amongst the ambiguity of which title to use, PE or HPE, new terms of branding such as “physical literacy” and “health literacy” have re/emerged. The purpose of this interpretivist study is to identify if associated terms used for the original PE label are a help or hindrance to practitioners? Participants were asked an open-ended question relating to PE nomenclatures. The data gathered were analysed and findings confirmed that practitioner confusion does exist. It is suggested that children are first and foremost “physically educated”; therefore a strong, clear and comprehensive grounding in quality PE is essential for teachers and students

On the cavitation and pore blocking in cylindrical pores with simple connectivity

We present a grand canonical Monte Carlo (GCMC) simulation of argon adsorption in connected cylindrical pores at 87.3 K. A number of pore models are constructed from various components: finite cylinder, finite cone, and flat surface. In the case of two cylinders of different sizes connected to each other with open ends, the adsorption isotherm can be described by a combination of two independent pores, the smaller of which is opened at both ends while the larger one is closed at one end. The adsorption isotherm depends on the relative size between the two sections of the connected pore. In the case of a cavity connected to the bulk surrounding gas via one or two narrower cylindrical necks, the phenomenon of either pore blocking or cavitation is observed, depending on the relative size between the neck and the cavity. If the neck size is smaller than a critical size, D(c), we observe cavitation, while pore blocking is observed when it is greater than D(c). This is due to the dominance of one of two mechanisms for removal of the adsorbates: either the receding of the menisci or the stretching of the fluid in the cavity. We also explore the effects of neck length and cavity length on the adsorption isotherm and conclude that while the neck length has a negligible effect on cavitation, it is of considerable importance when pore blocking occurs, because this process is controlled by the formation and movement of the meniscus in the pore neck. The effect of cavity length is found to be negligible in both cases