Featured Special Issues

• Special issue: papers from the conference “Semigroups and Groups, Automata, Logics” SandGAL 2019 Guest Editors: Achille Frigeri, Victoria Gould, Patrizia Longobardi and Emanuele Rodaro The conference “Semigroups and Groups, Automata, Logics”, known as SandGAL2019, successfully brought together experts from different areas of algebra, logic, theoretical computer science and combinatorics in which semigroup and group theory play an important role and interact with these disciplines in an interesting way. This edition of the International Journal of Algebra and Computation is devoted to publishing papers from that meeting.

  Special Issue: Molecular Interactions on Two-Dimensional Materials Guest Editors: Andrew Wee, Kostya S. Novoselov and Arramel This special issue addresses the fundamental and applied topics in molecular interactions on 2D materials. It begins with an introduction of 2D materials by Novoselov himself. Various experts then introduce on-surface molecular interactions on surfaces, and then specifically on the molecular functionalization of 2D materials. The electronic structure at molecular-2D material heterointerfaces is presented followed by related screening effects at these heterointerfaces. Analytical techniques used to study such heterointerfaces are then described, such as synchrotron techniques, scanning probe microscopy, and electron holography. The final papers cover related topics such as the molecule-2D perovskite heterointerface, and graphene oxide membranes.

  Special Issue: Computational and Technological Innovations for Epilepsy Diagnosis and Control Guest Editors: Vasilios K. Kimiskidis and Steven Schachter The cornerstone of the diagnosis of epilepsy is the careful analysis of the clinical history and seizure semiology in conjunction with the time-honored visual examination of EEG and the critical assessment of other paraclinical tests. For ongoing management of patients with drug-resistant seizures, computer-aided EEG diagnostic or even predictive algorithms are being developed and waiting to enter the clinical arena. This trend is clearly evident in the 2021 special issue of IJNS on Computational and Technological Innovations for Epilepsy Diagnosis and Control. This issue comprises six original research articles, each one rigorously reviewed by 6–8 reviewers, and focusing on the clinically important issue of the automated detection and prediction of epileptic seizures.