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Three balance of systems (BOS) connector designs common to industry were investigated as a means of assessing reliability from the perspective of arc fault risk. These connectors were aged in field and laboratory environments and performance data captured for future development of a reliability model. Comparison of connector resistance measured during damp heat, mixed flowing gas and field exposure...
Aging is associated with exacerbated brain injury after ischemic stroke. Herein, we explored the possible mechanisms underlying the age-associated exacerbated brain injury after ischemic stroke and determined whether therapeutic intervention with anesthetic post-conditioning would provide neuroprotection in aged rats. Male Fisher 344 rats (young, 4months; aged, 24months) underwent 2h of middle cerebral...
BACKGROUNDIncreasing age is a significant risk factor for prostate cancer. The prostate is exposed to environmental and endogenous stress that may underlie this remarkable incidence. DNA methylation, genomic imprinting, and histone modifications are examples of epigenetic factors known to undergo change in the aging and cancerous prostate. In this review we examine the data linking epigenetic alterations...
A facile route to synthesis silver nanoparticles into polyvinylpyrrolidone (PVP) or silica (SiO2) matrices using sol-gel method has been developed. The influence of matrices on the size and optical properties of silver nanoparticles were studied. Because the particle size increases at different rate with silver nitrate (AgNO3) concentration in different matrices, there is an up-limit for AgNO3 concentration...
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