Cobalamin (vitamin B₁₂) deficiency occurs with several disorders, involving different organs and systems, including blood, bowel, nervous system and eyes. Although the most important features are usually haematological ones, presence of neurological involvement, in the absence of blood count alterations, has just been described in the literature. Here we report the case of a 48-year-old man, su...

German case syncretism is often assumed to be the accidental by-product of historical development. This paper contradicts this claim and argues that the evolution of German case is driven by the need to optimize the cognitive effort and memory required for processing and interpretation. This hypothesis is supported by a novel kind of computational experiments that reconstruct and compare attest...

Two experiments examine the use of the recognition heuristic which states that, in the absence of other information, individuals make judgments on the basis on recognition alone. This has been shown to be adaptive (Borges, Goldstein, Ortmann & Gigerenzer, 1999) and in Experiment 1 we demonstrate that the heuristic is reliably employed when participants are placed under time pressure. Experiment...

med/20479116. [4] Sumitran-Holgersson S, Ge X, Karrar A, Xu B, Nava S, Broome U, et al. A novel mechanism of liver allograft rejection facilitated by antibodies to liver sinusoidal endothelial cells. Hepatology 2004;40:1211–1221. Available from: http://www.ncbi.nlm.nih.gov/pubmed/15486937. [5] Haniffa M, Shin A, Bigley V, McGovern N, Teo P, See P, et al. Human tissues contain CD141hi cross-pres...

While critics of Twitter, the most popular microblogging application, dismiss the service as frivolous, proponents tout a variety of educational, political and commercial uses. Drawing from social construction theories of technology, this research uses the grounded theory approach to analyze press coverage of this emerging technology from 2006 through the first months of 2009. While the specifi...

The unknown cause of mass kills in juvenile Clarias gariepinus was investigated using different markers as a prerequisite to provide solution for disease outbreaks. Thus, the following analyses were conducted; namely, hematology and serum biochemical analyses, stress biomarkers detection quantification, water quality test, elemental quantification from pond soil sampled, quantitative qualitativ...