Results 101 to 110 of about 559,488 (309)

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Los desafíos, aún pendientes, de la sociedad de envejecimiento

open access: yesForum Revista Departamento de Ciencia Política
En este texto se intentan debatir algunos de los desafíos que tiene por delante la llamada sociedad de envejecimiento, enfatizando dos ejes de análisis. Uno refiere a que no basta solo con indicar tendencias demográficas, sociales, poblacionales u otras
Alejandro Klein
doaj   +1 more source

Population ageing and endogenous economic growth [PDF]

open access: yes
This article investigates the consequences of population ageing for longrun economic growth perspectives. We introduce population ageing into a generalized model of endogenous technological change incorporating the model of Romer (1990) and Jones (1995 ...
Klaus Prettner
core  

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Population aging and health [PDF]

open access: yesBMJ, 1997
People in industrialised nations are living longer than ever before. In this century alone, average life expectancy from birth has increased by more than 25 years, and nearly five of those 25 years has been added to average life expectancy from base age 65.
openaire   +2 more sources

Population ageing, inequality and the political economy of public education [PDF]

open access: yes
Population ageing has triggered concerns about the sustainability of public systems of education. The empirical evidence is still inconclusive, whereas some theoretical results present a somewhat optimistic view (Gradstein and Kaganovich, 2004; Levy ...
Francisco Martínez-Mora
core  

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

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