Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transferring ownership privileges. In one aspect, a method includes identifying an ownership privilege in a system that permits users to acquire a write lock on one or more resources in a plurality of resources. The ownership privilege for a first plurality of users located in a first geographic region is revoked based at least partly on a determination that a current time of day in a different, second geographic region satisfies a criteria. The ownership privilege is granted to a different second plurality of users located in the second geographic location responsive to the determination.

Abstract: Redox-active NPs are disclosed that can potentiate innate immunity and stimulate distinct adaptive responses, producing distinct T cell subset polarization outcomes. Nanomaterials that can alter the cellular redox environment through ROS modulation can impact human immunology. TiO2 nanoparticles potentiate DC maturation, inducing the secretion of IL-12, p70, and IL-1B, while treatment with CeO2 nanoparticles induces IL-10, a hallmark of suppression. When delivered to T cells, the materials direct distinct TH polarization, where TiO2 stimulates largely a TH1 dominated response, whereas CeO2 stimulates a TH2 bias and TReg differentiation.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for transferring ownership privileges. In one aspect, a method includes identifying an ownership privilege in a system that permits users to acquire a write lock on one or more resources in a plurality of resources. The ownership privilege for a first plurality of users located in a first geographic region is revoked based at least partly on a determination that a current time of day in a different, second geographic region satisfies a criteria. The ownership privilege is granted to a different second plurality of users located in the second geographic location responsive to the determination.