This Collection focuses on the critical roles of regulatory T cells (Tregs) in immune regulation and self-tolerance. We welcome submissions that investigate their mechanisms of action, implications in autoimmunity, and potential therapeutic applications. By advancing our understanding of Tregs, this Collection aims to foster new insights that could translate into innovative treatments for a variety of immune-related conditions.

This Collection highlights original research that report synthetic, structural, spectroscopic, or theoretical advances, as well as applications in catalysis, magnetism, materials science, nuclear chemistry, and sustainability. Studies that address challenges of bonding interpretation, selective separations, and the integration of f-element chemistry into emerging technologies are particularly welcome.

This collection explores plant–soil microbiome networks, highlighting how microbial diversity and community interactions around plant roots shape crop performance, soil health, and ecosystem resilience. By integrating network-based analyses, molecular tools, and field applications, it connects fundamental microbiome science with sustainable and climate-resilient agricultural practices.

Chemistry using data science or mathematical treatment

BMC Psychiatry invites research to our First episode psychosis: diagnosis, treatment, and outcomes Collection. This Collection seeks to gather research that explores the complexities of first episode psychosis, including its neurobiological basis, longitudinal course, effective early intervention strategies, and long-term outcomes.

This Collection aims to advance the science of sea level change by integrating multi-source observations to elucidate underlying mechanisms and improve coastal impact assessments. It emphasizes cross-validation of datasets and rigorous uncertainty quantification to strengthen the scientific foundation for risk assessment and adaptation planning.

This Topical Collection examines how global migration reshapes societies and fuels policy debates, with a focus on the interplay between geopolitical change and fiscal sustainability. It welcomes comparative, empirically grounded studies that employ diverse methods to inform evidence-based responses to migration in an interconnected world.

This collection seeks to address the new demands and challenges for high-performance electronic sensors in the age of Artificial Intelligence.

This Collection aims to collate innovative research on cardiac arrest, focusing on critical aspects such as out-of-hospital cardiac arrest (OHCA), return of spontaneous circulation (ROSC), and post-cardiac arrest care. We welcome submissions that explore advancements in treatment protocols, management strategies, and technology to improve outcomes in patients experiencing cardiac arrest, contributing to the ongoing evolution of emergency medicine.

We welcome Original Research articles, Reviews, and Perspectives that address the development, characterization, and application of next-generation materials for sustainable water treatment

This Collection focuses on digital twin–enabled smart water treatment systems, spanning centralized, decentralized, and hybrid infrastructures.

This Collection brings together interdisciplinary research that advances hypersaline brine management toward zero liquid discharge while enabling circular-economy outcomes.

This Collection centers on the theme Wastewater Resource Recovery and Carbon Mitigation, and underlines key research areas such as water-energy-carbon nexus mechanisms in treatment processes, accurate accounting of carbon emissions, comprehensive assessment of co-benefits for pollution and carbon reduction, and the development of green, low-carbon technologies for resource recovery.

This Collection aims to explore sensor validation, standardization of evaluation protocols, scalability, and regulatory alignment for the translation of monitoring technologies from laboratory development to real-world deployment.

The objective of this Topical Collection is to present recent advances and to discuss current and emerging multi-disciplinary approaches in the field of structural design and optimization.

EPJ Quantum Technology is calling for submissions to our Collection on Quantum Education. Appropriate contributions in this topical collection include: discussion of new topics relevant for the teaching of modern quantum physics; new teaching methods and ideas; implementation of demonstration and student experiments; novel methodologies for workforce training and lifelong learning in Quantum Technologies; and more.

The intelligent fusion of multi-modal data for complex systems involves the integration and analysis of diverse data types, such as images, text, sensor data, and more, to gain a comprehensive understanding of complex phenomena. This approach is crucial for addressing the challenges posed by intricate systems in various domains, including healthcare, transportation, environmental monitoring, and beyond.

The objective of this special collection in Journal of International Humanitarian Action is to take stock of the progress on the Agenda for Humanity, seven years after its adoption. We welcome contributions from a variety of disciplinary fields.

This topical collection dives into the forefront of environmental innovation highlighting the most recent breakthroughs and research in sustainable methodologies for wastewater management. Featuring contributions from leading experts, the issue covers a wide range of topics including cutting-edge biological treatments, advanced filtration techniques, and pioneering applications of nanotechnology.

This collection addresses the complexities of pain and sedation management in NICU/PICU settings. It brings together international experts to explore guidelines, clinical trials, and the evolving roles of healthcare professionals and parents in providing compassionate, effective care for critically ill neonates and children.