This cross-journal collection highlights studies on how geological and geochemical processes concentrate critical elements across environments such as epithermal, skarn and vein deposits, granitic intrusions, and weathering or sedimentary systems.

This special issue presents recent advances in metric fixed point theory and its growing influence across mathematics, engineering, and applied sciences. It welcomes work on new theoretical results and innovative applications of fixed-point methods in differential equations, nonlinear analysis, optimization, artificial intelligence, and related areas. The aim is to gather cutting‑edge research that strengthens both theory and practice while promoting interdisciplinary approaches.

The collections in this journal are not "special issues". Instead, the papers are grouped together based on their focus on the same type of cancer. This collection was curated by the Editor-in-Chief. The journal’s standard peer review policy applies here. Please see the submission guidelines instruction for authors for the peer review policy.

The collections in this journal are not "special issues". Instead, the papers are grouped together based on their focus on the same type of cancer. This collection was curated by the Editor-in-Chief. The journal’s standard peer review policy applies here. Please see the submission guidelines instruction for authors for the peer review policy.

The collections in this journal are not "special issues". Instead, the papers are grouped together based on their focus on the same type of cancer. This collection was curated by the Editor-in-Chief. The journal’s standard peer review policy applies here. Please see the submission guidelines instruction for authors for the peer review policy.

This Collection invites research on the mechanisms, magnitudes, and ecological consequences of nutrient transfer mediated by whales, including their roles in the biological pump, diel vertical migration interactions, cross‑ecosystem subsidies, carbon cycling, and ecosystem resilience. We invite studies spanning ecology, oceanography, biogeochemistry, conservation science, and modelling.

This Collection focuses on advancing water sustainability and urban flood resilience under climate change and rapid urbanization, with an emphasis on artificial intelligence, data-driven methods, and innovative technologies. It brings together interdisciplinary research spanning science, engineering, governance, and policy to support resilient and sustainable urban water systems across diverse global contexts.

This collection explores innovations across mechanistic, clinical, and surgical aspects of inflammatory bowel disease, with a strong focus on treat-to-target strategies and emerging therapeutic endpoints. Bringing together translational and real-world perspectives, it highlights advances that support more precise, effective, and patient-centered care for Crohn’s disease and ulcerative colitis.

In recognition of the role this research plays in UN Sustainable Development Goals 3 and 4, this Collection welcomes original research on health and well-being among university students, from studies examining the scale of the problem to interventions to improve health and well-being in this population. This Collection is open to studies examining physical or mental health.

This Collection welcomes original research articles investigating the clinical mechanism of cardiometabolic multimorbidity in T2DM through clinical and preclinical studies.

The collections in this journal are not "special issues". Instead, the papers are grouped together based on their focus on the same type of cancer. This collection was curated by the Editor-in-Chief. The journal’s standard peer review policy applies here. Please see the submission guidelines instruction for authors for the peer review policy.

The collections in this journal are not "special issues". Instead, the papers are grouped together based on their focus on the same type of cancer. This collection was curated by the Editor-in-Chief. The journal’s standard peer review policy applies here. Please see the submission guidelines instruction for authors for the peer review policy.

The collections in this journal are not "special issues". Instead, the papers are grouped together based on their focus on the same type of cancer. This collection was curated by the Editor-in-Chief. The journal’s standard peer review policy applies here. Please see the submission guidelines instruction for authors for the peer review policy.

This Collection aims to gather pioneering research on the application of Artificial Intelligence and predictive analytics in cardiothoracic care. We welcome submissions that explore innovative methodologies, clinical applications, and the impact of these technologies on patient outcomes. By fostering collaboration among researchers and clinicians, this Collection seeks to advance the integration of AI in cardiothoracic surgery and enhance the future of patient care.

This Scientific Data collection of Data Descriptors will focus on the outputs and efficiency of manufacturing and construction processes, from project or region‑level datasets through to national and global scales.

This Collection welcomes original research articles which use clinical, in-vitro, or in-vivo approaches to explore the metabolic and biochemical changes induced by exercising.

This collection invites cutting-edge research and comprehensive reviews that dissect the cellular and molecular mechanisms by which the TME drives tumor cell migrationdissemination and immune modulationadaptive cancer cell states. We welcome interdisciplinary contributions spanning molecular oncology, immunology, systems biology, and bioengineering, with an emphasis on translational insights that inform therapeutic targeting of migratory TME-driven and immune-regulatory pathways in cancer.

This Collection welcomes original research articles examining metabolomic signatures, mechanisms, and clinical impacts of polypharmacy and drug-drug interactions across clinical, translational, and preclinical studies.

Parasitic diseases affect billions and disproportionately impact vulnerable populations. Driven by diverse parasites and complex host–vector–environment interactions, they require multiscale insights. This collection highlights integrated approaches for better prevention, diagnosis, and control.

This Collection welcomes original research on wearable, or implantable soft bioelectronics, particularly advances in materials, device fabrications, and translational applications.