Results 11 to 20 of about 1,392,331 (344)

Aging: damage accumulation versus increasing mortality rate [PDF]

open access: greenMathematical Biosciences, 2006
If aging is understood as some process of damage accumulation, it does not necessarily lead to increasing mortality rates. Within the framework of a suggested generalization of the Strehler-Mildwan (1960) model, we show that even for models with ...
Maxim S. Finkelstein
core   +5 more sources

Cyclic Damage Accumulation in the Femoral Constructs Made With Cephalomedullary Nails [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Background: The purpose of this study was to evaluate the risk of peri-prosthetic fracture of constructs made with cephalomedullary (CM) long and short nails.
Farah Hamandi   +5 more
doaj   +2 more sources

Damage accumulation in quasibrittle fracture [PDF]

open access: yesPhysical Review E, 2013
The strength of quasibrittle materials depends on the ensemble of defects inside the sample and on the way damage accumulates before failure. Using large-scale numerical simulations of the random fuse model, we investigate the evolution of the microcrack
Alava, Mikko J.   +2 more
core   +9 more sources

Nonlinear Fatigue Damage Accumulation [PDF]

open access: yesFatigue of Aircraft Structures, 2015
One important element of any computational fatigue analysis is the adoption of a hypothesis of fatigue damage accumulation. The most commonly used is the hypothesis of linear accumulation of fatigue damage called the Palmgren-Miner hypothesis.
Dębski Daniel Krzysztof
doaj   +2 more sources

Real-time imaging of DNA damage in yeast cells using ultra-short near-infrared pulsed laser irradiation. [PDF]

open access: yesPLoS ONE, 2014
Analysis of accumulation of repair and checkpoint proteins at repair sites in yeast nuclei has conventionally used chemical agents, ionizing radiation or induction of endonucleases to inflict localized damage.
Estrella Guarino   +4 more
doaj   +11 more sources

Cell aging preserves cellular immortality in the presence of lethal levels of damage. [PDF]

open access: yesPLoS Biology, 2019
Cellular aging, a progressive functional decline driven by damage accumulation, often culminates in the mortality of a cell lineage. Certain lineages, however, are able to sustain long-lasting immortality, as prominently exemplified by stem cells.
Audrey Menegaz Proenca   +4 more
doaj   +4 more sources

The repeated low-velocity impact response and damage accumulation of shape memory alloy hybrid composite laminates [PDF]

open access: golde-Polymers
The repeated low-velocity impact responses of traditional glass fiber-reinforced composites and shape memory alloy (SMA) hybrid composites were explored in this work.
Li Hao   +4 more
doaj   +2 more sources

Exponential increase in mortality with age is a generic property of a simple model system of damage accumulation and death. [PDF]

open access: yesPLoS ONE, 2020
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 many biological structures and systems.
Anders Ledberg
doaj   +2 more sources

Damage accumulation of bovine bone under variable amplitude loads [PDF]

open access: yesBone Reports, 2016
Stress fractures, a painful injury, are caused by excessive fatigue in bone. This study on damage accumulation in bone sought to determine if the Palmgren-Miner rule (PMR), a well-known linear damage accumulation hypothesis, is predictive of fatigue ...
Abbey M. Campbell   +3 more
doaj   +2 more sources

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