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Evidence of the Great Attractor and Great Repeller from Artificial Neural Network Imputation of Sloan Digital Sky Survey

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Journal of High Energy Physics, Gravitation and Cosmology 2024年第3期10卷 1178-1194页

作者： christopher cillian o’neill School of Computing Ulster University Belfast UK Data Analysis CCT Dublin Ireland

The Sloane Digital Sky Survey (SDSS) has been in the process of creating a 3D digital map of the Universe, since 2000AD. However, it has not been able to map that portion of the sky which is occluded by the dust gas and stars of our own Milkyway Galaxy. This research builds on work from a previous paper that sought to impute this missing galactic information using Inpainting, polar transforms and Linear Regression ANNs. In that paper, the author only attempted to impute the data in the Northern hemisphere using the ANN model, which subsequently confirmed the existence of the Great Attractor and the homogeneity of the Universe. In this paper, the author has imputed the Southern Hemisphere and discovered a region that is mostly devoid of stars. Since this area appears to be the counterpart to the Great Attractor, the author refers to it as the Great Repeller and postulates that it is an area of physical repulsion, inline with the work of GerdPommerenke and others. Finally, the paper investigates large scale structures in the imputed galaxies.

关键词： Artificial Neural Networks Convolutional Neural Networks SDSS Anisotropies Great Attractor

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Cerebral microhaemorrhage in CoVID-19: a critical illness related phenomenon?

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Stroke & Vascular Neurology 2020年第4期5卷 315-322页

作者： Luke Dixon cillian McNamara Pritika Gaur Dermot Mallon christopher Coughlan Francesca Tona Wajanat Jan Mark Wilson Brynmor Jones Department of Neuroradiology Imperial College Healthcare NHS TrustLondonUK Department of Cardiac Intensive Care Imperial College Healthcare NHS TrustLondonUK Department of Neurosurgery Imperial College Healthcare NHS TrustLondonUK

Background Cerebral microhaemorrhages are increasingly being recognised as a complication of *** observational retrospective study aims to further investigate the potential pathophysiology through assessing the pattern of microhaemorrhage and clinical characteristics of patients with CoVID-19 and *** comparing with similar patterns of microhaemorrhage in other non-CoVID-19 disease,this study aims to propose possible common pathogenic *** A retrospective observational case series was performed identifying all patients with CoVID-19 complicated by cerebral microhaemorrhage on *** distribution and number of microhaemorrhages were recorded using the microbleed anatomical scale,and patients’baseline characteristics and salient test results were also *** Cerebral microhaemorrhages were noted to have a predilection for the corpus callosum,the juxtacortical white matter and *** patients had a preceding period of critical illness with respiratory failure and severe hypoxia necessitating intubation and mechanical *** This study demonstrates a pattern of cerebral microhaemorrhage that is similar to the pattern reported in patients with non-CoVID-19 related critical illness and other causes of severe *** raises questions regarding whether microhaemorrhage occurs from endothelial dysfunction due the direct effect of SARS-CoV-2 infection or from the secondary effects of critical illness and hypoxia.

关键词： Cerebral pattern critical

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