MODELING FLOW AND PRESSURE FIELDS IN POROUS MEDIA WITH HIGH CONDUCTIVITY FLOW CHANNELS AND SMART PLACEMENT OF BRANCH CUTS FOR VARIANT AND INVARIANT COMPLEX POTENTIALS

A long overdue distinction between so-called variant and invariant complex potentials is proposed here for the first time.Invariant complex potentials describe physical flows where a switch of the real and imaginary parts of the function will still describe the same type of physical flow (but only rotated by π/2).Such invariants can be formula

Background Health care workers are vital service providers in primary healthcare, playing a crucial role in safeguarding public health, disease prevention, and chronic disease management.At present, research on healthcare resources mainly focuses on the quantity and structure, and there are few studies on the spatial distribution characteristics of

BackgroundMany users of Internet interventions do not persist with the full treatment program.As persistence may influence outcomes of such interventions, being able to maximize persistence is vital.However, while studies have begun to explore the predictors of dropout in Internet interventions, few have explored reasons why users persist with the

Abstract Background The UK Clinical Research Collaboration (UKCRC) registered Clinical Trials Units (CTUs) Network aims to support high-quality, efficient and sustainable clinical trials research in the UK.To better understand the challenges in efficient trial conduct, and to help prioritise tackling these challenges, we surveyed CTU staff.The aim