Population aging is a concern to policy makers in Cuba where by 2025 there will be more pensioners than workers.We describe a unique, exploratory study of older Cubans 60+ years of age and how they cope with stress associated with economic vulnerability and adverse living conditions.Many older persons have incomes too low to provide a minimum stand
Abstract The effective solution to avoid machinery damage caused by resonance has been perplexing the field of engineering as a core research direction since the resonance phenomenon was discovered by Euler in 1750.Numerous attempts have been performed to reduce the influence of resonance since the earlier of last century, by introducing a nonlinea
Regulatory T (Treg) cells maintain immune homeostasis by suppressing excessive immune responses.Treg cells induce tolerance against self- and foreign antigens, thus preventing autoimmunity, allergy, graft rejection, and fetus rejection during pregnancy.However, Treg cells also infiltrate into tumors and inhibit antitumor immune responses, thus inhi
The family Nosodendridae is a small group of tree sap beetles with only 91 described species representing three genera from the world.In 1930s, bacteria-harboring symbiotic organs, called bacteriomes, were briefly described in a European species Nosodendron fasciculare.Since then, however, no studies have been conducted on the nosodendrid endosymbi