Connectivity of Parameter Regions of Multistationarity for Multisite Phosphorylation Networks.

The parameter region of multistationarity of a reaction network contains all the parameters for which the associated dynamical system exhibits multiple steady states. Describing this region is challenging and remains an active area of research. In this paper, we concentrate on two biologically relevant families of reaction networks that model multisite phosphorylation and dephosphorylation of a substrate at n sites.

Biomechanical comparison of two fixation methods for pediatric femoral neck fractures: an in vitro study using ovis aries lambs.

Objective: In pediatric patients, femoral neck fracture is a relatively rare injury with a high complication rate despite proper diagnosis and treatment. Fixation of femoral neck fractures is usually performed with screws placed along the neck axis. In this study, we aim to compare two different implants and methods in terms of biomechanics.

Effects of Focal Cerebellar Injury on Fracture Healing and Oxidative Stress in Rat Model: An Experimental Animal Study.

Aim: To examine the effect of cerebellar damage on the process of fracture healing.

Material And Methods: A total of forty-two male rats were selected at random and subsequently allocated into three distinct groups. The experimentals were divided into two subgroups within each group, with the intention of sacrificing them during the third and sixth weeks.

A Prospective Randomized Trial: Does Full Weight Bearing Improve Functional Outcomes in Elderly Patients With Proximal Intramedullary Nailing After an Intertrochanteric Femur Fracture?

Introduction This study aimed to compare the functional outcomes and degree of independence in activities of daily living in patients aged >65 years who were treated with a proximal femoral nail (PFN) after an intertrochanteric femur fracture (ITFF) and underwent full and partial load-bearing in the early stage. Methods Overall, 133 patients who were hospitalized for ITFF and treated with PFN between August 2018 and March 2021 were randomly assigned to two groups. During the follow-up period, 45 patients who underwent partial load bearing (Group 1) and 40 patients who underwent full load bearing (Group 2) were prospectively evaluated.

Topological descriptors of the parameter region of multistationarity: Deciding upon connectivity.

Switch-like responses arising from bistability have been linked to cell signaling processes and memory. Revealing the shape and properties of the set of parameters that lead to bistability is necessary to understand the underlying biological mechanisms, but is a complex mathematical problem. We present an efficient approach to address a basic topological property of the parameter region of multistationary, namely whether it is connected.