A set of deterministic SIS models with density-dependent treatments are studied to understand the disease dynamics when different treatment strategies are applied.Qualitative analyses are carried out in terms of general treatment functions.It has become customary that a backward bifurcation leads to bistable dynamics.However, this study USB 3.1 Typ
The problem of maximizing the range of a propeller-driven aircraft in a level flight cruise is analyzed within the framework of optimal control.The specific fuel consumption and propeller efficiency of its propulsive system are characterized by functions of the velocity and engine power (full model), in contrast to previous works, where they were c
We present a practical guide and step-by-step flowchart for establishing uncertainty intervals for key model outcomes in a simulation model in the face of uncertain parameters.The process starts with Powell optimization to find a set of uncertain parameters (the optimum parameter set or OPS) that minimizes the model fitness error relative to histor
Juvenile xanthogranuloma (JXG) is an uncommon non-Langerhans cell histiocytic lesion that usually occurs at an early age and is asymptomatic.It is Aluminum Crutches usually a self-limiting disorder, and predilection sites are the head and neck, extremities, and trunk.We report a 3-year-old male child who presented to the hospital with asymptomatic
Abstract Background Headache is the dominant factor for quality of life related disability in idiopathic intracranial hypertension (IIH) and typically has migraine-like characteristics.There are currently no evidence-based therapeutics for headache in IIH, and consequently this is an important unmet clinical need.Case series We report a series of s