Time Ratios Or Hazard Ratios: Accelerating Toward A New Approach?

Time Ratios Or Hazard Ratios: Accelerating Toward A New Approach?

A Mathematical Approach for Describing Time-Dependent Poisson’s Ratios of Periodontal Ligaments

Periodontal ligament is a thin layer of soft tissue that connects root of a tooth to the surrounding alveolar bone. These ligaments play an important role in initiating tooth movement when loads are applied to teeth with orthodontic appliances. The majority of such soft tissues exhibit as viscoelastic bodies or have a time-dependent behavior. Due to the viscoelastic behavior of the periodontal ...

The estimation of average hazard ratios by Cox regression

s for Seminar Series available at: http://www.mcgill.ca/epi-biostat-occh/seminars/biostatistics/ Professor Michael Schemper Section for Clinical Biometrics, Core Unit for Medical Statistics and Informatics, Medical University of Vienna, Vienna, Austria. The estimation of average hazard ratios by Cox regression. Tuesday, 27 January, 2009 4:00 pm 5:00 pm Purvis Hall, 1020 Pine Ave. West, Room 24

a mathematical approach for describing time-dependent poisson’s ratios of periodontal ligaments

periodontal ligament is a thin layer of soft tissue that connects root of a tooth to the surrounding alveolar bone. these ligaments play an important role in initiating tooth movement when loads are applied to teeth with orthodontic appliances. the majority of such soft tissues exhibit as viscoelastic bodies or have a time-dependent behavior. due to the viscoelastic behavior of the periodontal ...

Are corporates ’ target leverage ratios time - dependent ?

This paper extends the stationary-leverage-ratio model to incorporate a time-dependent target leverage ratio. The theoretical hypothesis of the existence of a time-dependent target leverage ratio reflects the movement of a firm’s initial target ratio toward a long-term target ratio over time. Using some simple scenarios about the time-dependence of the target leverage ratio, the numerical resul...