This is the submitted version of the paper, published with corrections in AI&Society. This theoretical paper elucidates the nature of educational technology and, in the process, sheds light on a number of phenomena in ...

There has been much controversy concerning the value of efforts to reduce blood cholesterol levels. In this contribution, the risks and benefits of interventions are discussed. Lowering cholesterol level by drugs is ...

Image of Cassiopeia constellation with Algolcam I

data from Puvurnituq (PUVR) Feb 2 2017 in local magnetic coordinates

This paper is concerned with the application of Web 2.0 technologies within a conventional institutional learning setting. After considering the affordances of Web 2.0 technologies vs Web 1.0 technologies and a framework ...

Homogenates made from the mucosa of the guinea pig small intestine were fractionated in a zonal rotor by rate and isopycnic centrifugation in sucrose gradients. Density perturbation of endoplasmic reticulum vesicles was ...

1. Rate sedimentation and isopycnic centrifugation were used to analyse the subcellular sites of enzymes in homogenates of goldfish intestinal mucosa. 2. The results allowed the following allocations to be made: carnitine ...