Rabbit Anti-Human FOS (Phospho-Ser362) polyclonal antibody

This study improved two parts of the virtual element method (VEM) to ensure that the stability of a stony soil slope, especially under excavation conditions, could be better studied. One of the improvements was the specific realization of the excavation algorithm, including the determination of how to identify polygonal elements that needed to be excavated, and the "deactivate and reactivate polygonal elements" used to calculate the excavation load during the slope excavation process. The second improvement was the calculation of the factor of safety (FOS) of a slope by combining shear strength reduction and the phi-nu inequality so that the stability of the stony soil slope could be better evaluated. The principal goal was to extend the latest developed virtual element method to the analysis and calculation of the excavation of a stony soil slope. Because the VEM was shape independent, it also allowed the number of nodes in an element to be chosen flexibly and fluidly, so the number of nodes could be changed easily during a simulated procedure. Two numerical examples of the one-step excavation of a homogeneous slope and the two-step excavation of a stony soil slope were solved with the improved VEM. The numerical results showed that the VEM could accurately simulate the excavation process of the slope.

Aging, obesity, and insulin resistance are known to cause the impairment of bone regulation, resulting in an imbalance in bone homeostasis and pathological bone. The natural deterioration associated with the aging process, including increased adipogenicity, menopause, andropause and alteration of mesenchymal stem cell fate have been shown to be potential causes of decreased bone density, resulting in osteoporosis, in which is a major risk factor of bone fracture in elderly people. Furthermore, functional limitations of the aging musculoskeletal system cause physical inactivity and increased adipogenicity. Therefore obesity in aged population has been dramatically observed. Several evidence demonstrated that obesity in aged individual leads to the acceleration and aggravation of unfavorable effects to general health, particularly the deterioration of bone health, including reduction in bone formation, increased bone resorption, greater adipose tissue accumulation, impaired bone architecture, and bone fragility. Therefore, the present review aimed to summarize and discuss the effects of aging, obesity, and aging with obesity on bone remodeling. The possible mechanistic insights of bone homeostasis and the interventions for the improvement of bone quality in aged and obese individuals have been included and discussed.