Results 141 to 150 of about 14,125,984 (386)
DETERMINANT FACTORS FOR FERTILITY. CASE OF ALBANIA [PDF]
Fertility Rates in Albania have suffered a great change over the past 20 years. Starting from this fact the main objective of this study is to investigate the relation between fertility rate and its determinant factors.
Arjan Tushaj, Valentina Sinaj
core
Genome Biology, 2017 BackgroundAge-associated epigenetic changes are implicated in aging. Notably, age-associated DNA methylation changes comprise a so-called aging “clock”, a robust biomarker of aging.
John J. Cole +13 more
semanticscholar +1 more source
Hydrogel‐Based Capacitive Sensor Model for Ammonium Monitoring in Aquaculture
Advanced Engineering Materials, EarlyView.Traditional techniques for monitoring aquaculture water quality, particularly ammonium levels, harm fish. This work presents a novel capacitive sensor with an ionic hydrogel transducer to monitor ammonium concentration in real time based on the ammonium‐induced hydrogel dissociation and osmotic pressure. Monitoring aquaculture water quality, especially
Mohammad Mirzaee +3 more
wiley +1 more source
On the relationship between period and cohort mortality [PDF]
In this paper I explore the formal relationship between period and cohort mortality, focusing on a comparison of measures of mean lifespan. I consider not only the usual measures (life expectancy at birth for time periods and birth cohorts) but also some
John R. Wilmoth
core
The coevolution of lifespan and reversible plasticity
Nature Communications, 2019 Reversible phenotypic plasticity, the ability to change one’s phenotype repeatedly throughout life, can be selected for in environments that do not stay constant throughout an individual’s lifetime.
I. Ratikainen, H. Kokko
semanticscholar +1 more source
Anomaly Detection Method for Hybrid Workpieces Using Dynamic Time Warping
Advanced Engineering Materials, EarlyView.Monitoring of hybrid workpieces: when machining hybrid workpieces, unavoidable axial deviations of the material transition zone cause temporal shifts in the process force signals. A new anomaly detection method based on dynamic time warping is proposed to detect material defects.
Berend Denkena +3 more
wiley +1 more source
Tracing the development and lifespan change of population-level structural asymmetry in the cerebral cortex. [PDF]
Elife, 2023 Roe JM +13 more
europepmc +1 more source
Advanced Engineering Materials, EarlyView.A hybrid system for de‐icing made of gradient polymer coatings, deposited on aluminum coupled with an electromechanical system, is demonstrated as an effective and durable strategy for reducing drastically ice adhesion. The system is capable of detaching ice blocks over the coating in less than 1 s, regardless of the ice type and covered area ...
Gabriel Hernández Rodríguez +8 more
wiley +1 more source
Epigenetic drift of H3K27me3 in aging links glycolysis to healthy longevity in Drosophila
eLife, 2018 Epigenetic alteration has been implicated in aging. However, the mechanism by which epigenetic change impacts aging remains to be understood. H3K27me3, a highly conserved histone modification signifying transcriptional repression, is marked and ...
Zaijun Ma +14 more
doaj +1 more source
Upper bound for lifespan of solutions to certain semilinear parabolic, dispersive and hyperbolic equations via a unified test function method [PDF]
arXiv, 2017 This paper is concerned with the blowup phenomena for initial-boundary value problem for certain semi linear parabolic, dispersive and hyperbolic equations in cone-like domain. The result proposes a unified treatment of estimates for lifespan of solutions to the problem by test function method.
arxiv