Radical lifespan disparities exist in the animal kingdom. While the ocean quahog can
survive for half a millennium, the mayfly survives for less than 48 h. The evolutionary …

Are diseases caused by aging? What are the mechanisms of aging? Do all species age?
These hotly debated questions revolve around a unitary definition of aging. Because we use …

A methodology for maintenance planning is developed which helps in improving the
reliability of the components and safety performance in process facilities. This methodology …

The concept of actuarial senescence (defined here as the increase in mortality hazards with
age) is often confounded with life span duration, which obscures the relative role of age …

Significance: The two foremost concepts of aging are the mechanistic free radical theory
(FRT) of how we age and the evolutionary antagonistic pleiotropy theory (APT) of why we …

The risk of dying increases exponentially with age, in humans as well as in many other
species. This increase is often attributed to the “accumulation of damage” known to occur in …

The compensation effect of mortality (CEM) was tested and species-specific lifespan was
estimated using data on one-year age-specific death rates from the Human Mortality …

When mortality (μ), aging rate (γ) and age (t) are treated according to the Gompertz model μ
(t)= μ 0 e γt (GM), any mean age corresponds to a manifold of paired reciprocally changing μ …

The article focuses on mortality models with a random effect applied in order to evaluate
human mortality more precisely. Such models are called frailty or Cox models. The main …

Several non-human mammalian species provide grandparental care but remain fertile until
death, unlike our species. This might call into question the 'grandmother hypothesis' that the …