Articles: function.
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Bump attractors are localized activity patterns that can self-sustain after stimulus presentation, and they are regarded as the neural substrate for a host of perceptual and cognitive processes. One of the characteristic features of bump attractors is that they are neutrally stable, so that noisy inputs cause them to drift away from their initial locations, severely impairing the accuracy of bump location-dependent neural coding. Previous modeling studies of such noise-induced drifting activity of bump attractors have focused on normal diffusive dynamics, often with an assumption that noisy inputs are uncorrelated. ⋯ We demonstrate that subdiffusive dynamics can significantly improve the coding accuracy of bump attractors, since the variance of the bump displacement increases sublinearly over time and is much smaller than that of normal diffusion. Furthermore, we reanalyze existing psychophysical data concerning the spread of recalled cue position in spatial working memory tasks and show that its variance increases sublinearly with time, consistent with subdiffusive dynamics of bump attractors. Based on the probability density function of bump position, we also show that the subdiffusive dynamics result in a long-tailed decay of firing rate, greatly extending the duration of persistent activity.
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Retraction Of Publication
Increased counts and degranulation of duodenal mast cells and eosinophils in functional dyspepsia- a clinical study.
The above article published in Medicinski Glasnik online on 26 June 2014 by the Medical Association of Zenica-Doboj Canton (http://www.ljkzedo.com.ba/index.php/u-sljedecem-broju) and in Volume 11, Issue 2, pages 276-282, has been retracted by agreement between the authors, the journal Editor-in-Chief, Professor Selma Uzunović, and the Medical Association of Zenica-Doboj Canton. The reasons for this retraction are as follows: The work reported in the paper was about the role of duodenal eosinophils and mast cells in the pathogenesis of functional dyspepsia. Most of the experiments were carried out by a former member of the authors' team named Yuan Haipeng, who has left the team for more than two years. ⋯ REFERENCE Shijun Song, Yan Song, Haishan Zhang, Gaiqin Li, Xiaopei Li, Xiaohong Wang, Zhen Liu. Increased counts and degranulation of duodenal mast cells and eosinophils in functional dyspepsia- a clinical study. Med Glas (Zenica) 2014; 11(2):276-82.
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Randomized Controlled Trial
The influence of mild hypothermia on reversal of rocuronium-induced deep neuromuscular block with sugammadex.
Mild hypothermia may be frequently induced due to cool environments in the operating room. The study analyzed patient recovery time and response to sugammadex after a prolonged rocuronium-induced deep neuromuscular block (NMB) during mild hypothermia. ⋯ Sugammadex safely and securely reversed deep rocuronium-induced NMB during mild hypothermia. An additional 46 s was required for recovery from a deep NMB in hypothermia patients. Based on the results, we think this prolonged recovery time is clinically acceptable.