Publications by authors named "A El-Gammal"

The main objective of this study was to use deep learning, and convolutional neural networks (CNN), integrated with field geology to identify distinct lithological units. The Samadia-Tunduba region of the South Eastern Desert of Egypt was mapped geologically for the first time thanks to the use of processed developed CNN algorithms using Landsat 9 OLI-2, which were further enhanced by geological fieldwork, spectral measurements of field samples, and petrographic examination. According to previously published papers, a significant difference was observed in the distribution of rocks and their boundaries, as well as the previously published geological maps that were not accurately compatible with the nature of the area.

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Dense and aligned Collagen I fibers are associated with collective cancer invasion led by protrusive tumor cells, leader cells. In some breast tumors, a population of cancer cells (basal-like cells) maintain several epithelial characteristics and express the myoepithelial/basal cell marker Keratin 14 (K14). Emergence of leader cells and K14 expression are regarded as interconnected events triggered by Collagen I, however the underlying mechanisms remain unknown.

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Chest pain with focal ST elevation in the presence of elevated cardiac markers is usually believed to be secondary to an acute myocardial infarction. Moreover, widespread ST elevation is believed to be a hallmark sign of acute pericarditis. However, we present the case of a young male who presented with chest pain, elevated troponins, and focal ST elevations; however, left heart catheterization showed patent coronary arteries.

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