United Nations University Institute for Water, Environment, and Health

A cellular automata framework to study the diffusion in single and binary solvent systems

Abstract In this work, we present a two-dimensional cellular automata (CA) model to study mass transfer by diffusion of molecules in single and binary solvent systems. The method builds on Vanag’s probabilistic cellular automata (PCA), where diffusion is simulated through stochas...

Anthropogenic aerosol reduction contributes to faster flash drought onset in a changing climate

Flash droughts have emerged as severe hazards, posing growing challenges to natural and socioeconomic systems, yet the influence of recent aerosol reductions on their onset remains unclear. Here, we investigate the impacts of aerosols and their underlying mechanisms using multi-s...

Transforming Agricultural Water Management for Healthy People and Planet: Thinking Beyond Water

ABSTRACT This paper develops the concept of Thinking Beyond Water , a transdisciplinary paradigm that reframes agricultural water management (AWM) as a systems catalyst for planetary health, equity, justice and resilience. Moving beyond conventional irrigation‐centric models, we...

Gender disparities in leadership of methodological research in health science

Objectives Gender disparities in methodological studies are largely unexplored. We aimed to examine gender representation between first and last authorship positions in methodological research in health science. Methods We searched for methodological articles as part of a large s...

Embodied harm, normalised suffering: experiences of unpaid care and domestic work among women across the life course in sub-Saharan Africa

Unpaid care and domestic work (UCDW) is an important determinant of women's health and wellbeing in sub-Saharan Africa (SSA). While its gendered burden and health consequences are increasingly documented, less is understood about how women interpret these consequences and how the...

Biomineralization-Assisted Valorization of Phosphogypsum

Abstract The sustainable management of phosphogypsum (PG), a solid waste generated during phosphate fertilizer production via the wet-process phosphoric acid route, remains a major environmental and resource challenge. Transforming this waste stream into functional resources is a...

Reconstruction-Free EIT for Injection-Pattern Classification and Superficial Gas Velocity Regression as Proxies for Local Gas Holdup in Bubble Columns

Abstract Electrical impedance tomography (EIT) as a noninvasive tomographic technique is increasingly applied to multiphase reactor monitoring; however, conventional image reconstruction is ill-posed and regularization-dependent and may be redundant in applications where the prim...

Advanced Micromolding Approach toward Scaling-Up Smart Hydrogel Microvalves

Abstract Smart hydrogel valves are a promising technology for autonomous process control. At the macroscale, hydrogel valves offer high flow rates with slow response times, whereas hydrogel microvalves offer low flow rates with fast response times. This contradiction limits the p...

Trends in HIV prevention outcomes among Northern and Indigenous adolescents: A repeated cross-sectional study of arts-based sexual health workshops in the Northwest Territories, Canada

Background: Arts-based sexual health workshops may improve adolescent sexual health, yet limited studies have evaluated outcome trends over time. This study examined HIV prevention outcomes before and after school-based workshop participation among adolescents in the Northwest Te...

Groundwater Variability Is Strongly Linked to Soil Temperature Across Global Aquifers

Abstract Groundwater plays a critical role in land‐atmosphere interactions by regulating soil moisture and surface energy fluxes, yet its contribution to land‐surface processes and heat extremes remains poorly quantified globally. Here, we combine observation‐based aquifer record...