Abstract: The present disclosure provides systems, methods, and computer readable storage devices for software distribution across a hierarchical network. A method includes sending, by a first node device, a registration request message to a second node device of a first distribution group of the hierarchical network. The registration request message indicates a request for the first node device to join the hierarchical network. The method further includes receiving, by the first node device, a registration response message from the second node device. The registration response message indicates an assignment of the first node device to a second distribution group corresponding to a tier that is below a tier that includes the first distribution group. The first node device may be authorized to perform peer-to-peer (P2P) communications to receive at least a portion of one or more files from node devices in the second distribution group or the second node device.

Abstract: A magnetic resonance method is disclosed. The method comprises applying to the sample a plurality of pairs of bipolar gradient pulse subsequences, acquiring a magnetic resonance signal from the sample, analyzing the signal, and issuing a report regarding the analysis.

Abstract: A magnetic resonance method is disclosed. The method comprises applying to the sample a plurality of pairs of bipolar gradient pulse subsequences, acquiring a magnetic resonance signal from the sample, analyzing the signal, and issuing a report regarding the analysis.