Epistemic contextualists think that the truth-conditions of ‘knowledge’ ascriptions depend in part on the context in which they are uttered. But what features of context play a role in determining truth-conditions? The idea that the making salient of error-possibilities is a central part of the story has often been attributed to contextualists, and a number of contextualists seem to endorse it ...

Normative cognition – a uniquely human cognitive capacity ’Normative cognition’ is a ’mongrel’ concept covering human cognition of symbolically mediated normative information. Humans have social and cultural cognition of which normative cognition is a subset. Humans can produce, distribute, acquire and implement social norms and values. Normative cognition requires certain cognitive skills such...

INTRODUCTION Cognitive neuropsychology focuses on the concepts of dissociation and double dissociation. The performance of number processing and calculation tasks by patients with acquired brain injury can be used to characterise the way in which the healthy cognitive system manipulates number symbols and quantities. The objective of this study is to determine the components of the numerical pr...

BACKGROUND The current methodology for sample size calculations for stepped-wedge cluster randomised trials (SW-CRTs) is based on the assumption of equal cluster sizes. However, as is often the case in cluster randomised trials (CRTs), the clusters in SW-CRTs are likely to vary in size, which in other designs of CRT leads to a reduction in power. The effect of an imbalance in cluster size on th...

There is a certain family of conformally invariant first order elliptic systems which include the Dirac operator as its first and simplest member. Their general definition is given and some of their basic properties are described. A special attention is paid to the Rarita-Schwinger operator, the second simplest operator in the row. Its basic properties are described in more details. In the last...

OBJECTIVES To assess quality of reporting of sample size calculation, ascertain accuracy of calculations, and determine the relevance of assumptions made when calculating sample size in randomised controlled trials. DESIGN Review. DATA SOURCES We searched MEDLINE for all primary reports of two arm parallel group randomised controlled trials of superiority with a single primary outcome publi...