https://www.selleckchem.com/products/sodium-acrylate.html The application of mathematics, physics and engineering to medical research is continuously growing; interactions among these disciplines have become increasingly important and have contributed to an improved understanding of clinical and biological phenomena, with implications for disease prevention, diagnosis and treatment. This special issue presents examples of this synergy, with a particular focus on the investigation of cardiac and neural excitability. This issue includes 24 original research papers and covers a broad range of topics related to the physiological and pathophysiological function of the brain and the heart. Studies span scales from isolated neurons and small networks of neurons to whole-organ dynamics for the brain and from cardiac subcellular domains and cardiomyocytes to one-dimensional tissues for the heart. This preface is part of the Special Issue on "Excitable Dynamics in Neural and Cardiac Systems".COVID 19 pandemic struck the globe at a lightning speed mandating the use of containment measures like social distancing and work from home policies to prevent the transmission of this potentially lethal respiratory virus. Our institute, a tertiary referral cancer center catering to the whole of India (Western India in particular), implemented the "work from home" policy during COVID 19 pandemic. For the first time, the concept of "Practicing Pathology from the Distance" (telepathology) was implemented in the Department Of Pathology. This paper discusses how telepathology was factualized, integrated the problems faced during its reporting and possible solutions into the daily surgical pathology reporting at our institute. We analyzed 135 cases by Static Imagery Telepathology out of the total 385 cases reported during national lockdown in India (23rd March to 23rd May 2020) with later confirmation by light microscopy to search for percentage of diagnostic concordance and discrepancy, if an