Abstract: Systems, methods, and computer program products are provided herein for continual device authentication in virtual environments. An example method includes receiving a request for authentication of a first user device associated with a first user where the first user device is associated with a virtual reality environment for the first user. The method further includes receiving authentication credentials associated with the first user and authenticating the first user device for accessing the virtual reality environment based on the authentication credentials. The received authentication credentials may include one or more unique device identifiers associated with the first user device. The method may further include causing presentation of a plurality of virtual input objects in the virtual reality environment and receiving one or more user inputs via the plurality of virtual input objects in the virtual reality environment for determining the authentication credentials associated with the first user.

Abstract: Tracking digital resources used in resource exchange events conducted in virtual reality computing environments. Digital resources used in resource exchange events conducted in virtual reality computing environments are tagged with data that at least identifies the location of the resource exchange event in terms of virtual reality computing environment and/or sub-environments. In response, machine-learning algorithm(s) are implemented that analyze the tags to determine resource exchange event movement patterns for specific digital resources. The resource exchange event movement patterns may include digital resource movement across multiple different virtual computing environments.

Abstract: Reverse authentication of (i) virtual objects (e.g., avatars or the like) located in or proximate to sub-environments of virtual reality computing environments and, in some embodiments, (ii) the sub-environments themselves. The virtual object is authenticated as being associated with an individual/associate of the entity in control of the sub-environment and/or the sub-environment is authenticated as being associated with/controlled by the entity and, in response, a sensory-perceptible indicator (e.g., audible, visual, haptic indicator) is obtained/generated, which is communicated to a user device that outputs the sensory-perceptible indicator to notify the virtual reality user that the virtual object and/or sub-environment has been authenticated.

Abstract: The present invention provides methods and materials useful delivering liquids, including liquids comprising nucleic acid molecules into cells. In particular, the present invention provides methods for delivering saline solution, exogenous compositions, and isolated vectors to kidney cells, using the renal vein as a guide and under hydrodynamic pressure. The delivery methods and materials herein are useful to research, prognose, ameliorate symptoms of kidney injury, and treat kidney pathologies.

Abstract: The present invention provides methods and materials useful delivering liquids, including liquids comprising nucleic acid molecules into cells. In particular, the present invention provides methods for delivering saline solution, exogenous compositions, and isolated vectors to kidney cells, using the renal vein as a guide and under hydrodynamic pressure. The delivery methods and materials herein are useful to research, prognose, ameliorate symptoms of kidney injury, and treat kidney pathologies.

Abstract: An apparatus for measuring phase angle difference between two conductors uses a hot stick, a field unit, and reference unit. Voltage is sensed at a conductor, and the voltage is passed through an automatic gain control which adjusts the voltage input to a voltage detector to a level which prevents saturation of the voltage detector. Non-saturation of the voltage detector enables detection of all of the data in a detected sine wave. Pulse width modulation and pulse width modulation RF transmission are used to provide for data transmission from a hot stick to a field unit.

Abstract: A method for detecting loss of SF6 gas from electrical utility apparatus determines a molar ratio of gas in a container at an initial time and of gas in the container at a subsequent time. Measurement of temperature is determined by averaging ambient temperature and temperature of the surface of the container.

Abstract: A filter tape 10 for sealing the ends of sheeting. The tape 10 comprising a central portion 16 of an air permeable material 12, which portion 16 is locatable over the end of the sheeting, and longitudinal side portions 14 with adhesive thereon for adhering to the sides of the sheet.

Abstract: Methods for the prediction of the frequency of high order resonant ultrasound spectroscopy (RUS) diagnostic modes are used to limit the band width of diagnostic testing at high order mode frequencies. Testing of parts at low order frequency modes is used to calculate part dimensions, and then these calculated part dimensions are used to predict high order diagnostic mode frequencies. Lower order mode frequencies are used to predict high order diagnostic mode frequencies.

Abstract: Methods for the prediction of the frequency of high order resonant ultrasound spectroscopy (RUS) diagnostic modes are used to limit the band width of diagnostic testing at high order mode frequencies. Testing of parts at low order frequency modes is used to calculate part dimensions, and then these calculated part dimensions are used to predict high order diagnostic mode frequencies. Lower order mode frequencies are used to predict high order diagnostic mode frequencies.