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Petrovich theorized a Cybernetic Model for the Servosystem Theory. This theory states that occlusion provides a constantly changing input which influences the horizontally regulated growth of the midface and anterior cranial base. This midface growth then serves as a rate limiting factor for the growth of the mandible.
Helen Lorraine (Cook) Erickson (born 1936) is the primary author of the modeling and role-modeling theory of nursing. [1] Her work, co-authored with Evelyn Tomlin and Mary Ann Swain, was published in the 1980s and derived from her experience in clinical practice.
The elastic deformation of bone is measured in μStrain. [2] [3] 1000μStrain = 0.1% change of length of the bone.Strain E at length l and change of length Δl: =; It has to be considered that bone strength is highly dependent on geometry and direction of the acting forces in relation to this geometry.
Each vertebrate species exhibits a distinct duration of bone regeneration and remodeling, and it appears as though there is an inversely proportional relationship between the rate of bone regeneration and the phylogenetic evolution of the animal. [7] Each remodeling period lasts 3–6 months in humans, 3 months in dogs, and 6 weeks in rabbits. [8]
Models can be composed of different units (models at finer granularity) linked to achieving a specific goal; for this reason they can be also called modeling solutions. More generally, modeling and simulation is a key enabler for systems engineering activities as the system representation in a computer readable (and possibly executable) model ...
Bone tissue is removed by osteoclasts, and then new bone tissue is formed by osteoblasts. Both processes utilize cytokine (TGF-β, IGF) signalling.In osteology, bone remodeling or bone metabolism is a lifelong process where mature bone tissue is removed from the skeleton (a process called bone resorption) and new bone tissue is formed (a process called ossification or new bone formation).
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The initiative "Models at Work" studies the creation, management and use of domain models in scientific and industrial practice, aiming at a diversity of goals, varying from (as truthful as possible) representation of the conceptual structure of the domain that is modelled, via animation, simulation, execution and gamification, until automated (logic-based) reasoning.