Abstract: A system according to one embodiment includes a first computing device comprising ultra-wideband communication circuitry, and a second computing device comprising ultra-wideband communication circuitry configured to communicate with the ultra-wideband communication circuitry of the first computing device to determine the angle and distance of the first computing device relative to the second computing device.

Abstract: Provided herein are polypeptides having hydrogenase activity. The polypeptide may be multimeric, and may have hydrogenase activity of at least 0.05 micromoles H2 produced min?1 mg protein?1. Also provided herein are polynucleotides encoding the polypeptides, genetically modified microbes that include polynucleotides encoding one or more subunits of the multimeric polypeptide, and methods for making and using the polypeptides.

Abstract: Provided herein are polypeptides having hydrogenase activity. The polypeptide may be multimeric, and may have hydrogenase activity of at least 0.05 micromoles H2 produced min?1 mg protein?1. Also provided herein are polynucleotides encoding the polypeptides, genetically modified microbes that include polynucleotides encoding one or more subunits of the multimeric polypeptide, and methods for making and using the polypeptides.

Abstract: Provided herein are polypeptides having hydrogenase activity. The polypeptide may be multimeric, and may have hydrogenase activity of at least 0.05 micromoles H2 produced min?1 mg protein?1. Also provided herein are polynucleotides encoding the polypeptides, genetically modified microbes that include polynucleotides encoding one or more subunits of the multimeric polypeptide, and methods for making and using the polypeptides.

Abstract: Systems, methods, and computer readable media are provided for automating the process of provisioning and maintaining Access Point Names (“APNs”) for use in digital networks, such as GPRS networks. A plurality of network elements including but not limited to GGSN tables, router tables, firewall systems, VPN tunnels, and Home Location Registry (“HLR”) tables can be provisioned and maintained via a centralized system. The invention integrates centralized logging of provisioning, maintenance, and access events, as well as acknowledgement from provisioned network elements, for enhanced security, reporting, and troubleshooting. The invention thus ensures accuracy and reduces operational costs of integrating mobile communications systems with digital networks.