Abstract: Provided herein, inter alia, are nucleic acid sequencing devices and flow cells containing different flow paths to control the flow of fluidic solutions.

Abstract: An oxygen tube system that includes an upper-arm cuff portion with a tube collar affixed there to direct an oxygen tube from a patient's nasal cannula to their side, thereby reorienting the tube away from the feet. The arm cuff also includes a detachable fall detection medical alert transponder for alerting authorities in case there is a fall. In addition, a braided slit-tube sleeve with shape-memory is inserted over the oxygen tubes to prevent tangling and to impart an increased frictional resistance at the tube collar. Two sections of the braided slit-tube sleeve are inserted over the oxygen tubes in advance and arrears of a pivot coupling, which in combination prevent tangling of the tube, reorient and maintain the oxygen tube to the side and back of the patient away from the feet, and which ultimately detects a fall if one should occur.

Abstract: A solar power system capable of storing heat energy and converting sun light to electrical power. The solar power system includes a solar collection system which gathers and transmits concentrated solar energy to an absorber/cavity. The thermal energy is extracted from the absorber/cavity via a fluid and transported to a heat conversion system. The heat conversion system uses the thermal energy to create electricity.