Abstract: Provided herein are systems, devices, and methods for sample collection. A sample collection device may comprise a vessel, a lid, and pre-loaded liquid solutions. The sample collection device may collect a liquid sample, such as a biological sample. The liquid solutions may comprise reagents for preserving and/or stabilizing biological samples, such as saliva, collected in the vessel. A chamber comprising the liquid solutions may be located in the vessel and/or the lid. In some instances, the liquid solution may be released from the chamber upon closure of the vessel with the lid. In some instances, the liquid solution may be released from the chamber upon actuation of an implement, such as a plunger. In some instances, the liquid solution may be released upon compression of an absorbent member. The sample collecting device may be delivered to a remote location for further processing and/or analysis.

Abstract: Systems and methods for managing multi-objective alignments in imprinting (e.g., single-sided or double-sided) are provided. An example system includes rollers for moving a template roll, a stage for holding a substrate, a dispenser for dispensing resist on the substrate, a light source for curing the resist to form an imprint on the substrate when a template of the template roll is pressed into the resist on the substrate, a first inspection system for registering a fiducial mark of the template to determine a template offset, a second inspection system for registering the imprint on the substrate to determine a wafer registration offset between a target location and an actual location of the imprint, and a controller for controlling to move the substrate with the resist below the template based on the template offset, and determine an overlay bias of the imprint on the substrate based on the wafer registration offset.

Abstract: A hydrogen system for generating power may include a fuel cell stack selectively coupled to a hydrogen fuel source. A control may be configured to cause the fuel cell stack to operate in a first mode in response to a first predetermined temperature threshold being met such that the fuel cell stack may generate electricity when below a target operating temperature. The control may be configured to cause the fuel cell stack to operate in a second mode in response to a second predetermined temperature threshold being met subsequent to the first predetermined temperature threshold being met. A method of operating a fuel cell stack is also disclosed.

Abstract: An illustrative example hydrogen concentration sensor includes a hydrogen chamber configured to isolate hydrogen within the hydrogen chamber from gas outside the hydrogen chamber. A hydrogen evolving electrode is configured to generate pure hydrogen within the hydrogen chamber. A reference electrode is situated to be exposed to pure hydrogen within the hydrogen chamber. A detection electrode associated with the reference electrode is situated to be exposed to gas outside the hydrogen chamber. The detection electrode is configured to provide an indication of a concentration of hydrogen in the gas outside the hydrogen chamber.

Abstract: The disclosure relates to compounds of formula (I) and pharmaceutically acceptable salts, and compositions thereof, wherein the substituents are as defined herein. Also provided are methods of making compounds of formula (I), and methods involving the compounds or compositions for treating disorders and diseases described herein.

Abstract: An illustrative example embodiment of method of making a fuel cell component includes placing a graphite substrate and a polytetrafluoroethylene (PTFE) layer in a heated press with a fluoroelastomer adhesive between the graphite substrate and the PTFE layer; pressing the PTFE layer, the fluoroelastomer adhesive and the graphite substrate together using the heated press; removing the graphite substrate, the fluoroelastomer adhesive and the PTFE layer from the heated press; and allowing the graphite substrate, the fluoroelastomer adhesive, and the PTFE layer to cool.

Abstract: An illustrative example embodiment of a fuel cell component includes a graphite substrate, a polytetrafluoroethylene (PTFE) layer adjacent a portion of the graphite substrate, and a plurality of segments of acrylic adhesive between the portion of the graphite substrate and the PTFE layer. The acrylic adhesive secures the PTFE layer to the portion of the graphite substrate. There is spacing between adjacent ones of the segments.

Abstract: Through a first processing thread, a first database is accessed via a first API to retrieve a list of event objects of the first database. Through a second processing thread, for each of the event objects, participant identifiers (IDs) are determined from the event object. For each of the participant IDs, a domain ID is extracted from the participant ID. A list of one or more entity objects are identified based on the domain ID, where the entity objects are stored in a second database such as a task database storing and managing many tasks. At least one attribute of at least one of the entity objects is modified based of the participant ID and the domain ID, which generates a modified entity object. Through a third processing thread, any event objects that have been modified are transmitted to the second database via a second API over the network.

Abstract: An illustrative example fuel cell component includes a plate with a plurality of flow channels in at least one side of the plate. Each of the flow channels has a length between an inlet and an outlet. Each of the flow channels has a width and a depth, which are transverse to the length. At least some of the flow channels include a portion near the inlet and the width or the depth of the portion is greater than the width or depth along a majority of the length of those flow channels.

Abstract: A mosquito surveillance device includes one or more mosquito traps having a camera capable of taking images of mosquitos and transmitting the images electronically to a receiver. Suitable traps include an ovitrap, for example. Images may be transmitted from inside or outside the trap to a receiver using low bandwidth cellular phone networks. The images are processed and displayed using software forming mosquito data. The images may be analyzed and the number of live mosquitos identified, the number of dead mosquitos identified, the species of mosquitos identified, or mapped vector densities in real time identified preferably at high resolution.

Abstract: The disclosure relates to compounds of formula (I) and pharmaceutically acceptable salts, and compositions thereof, wherein the substituents are as defined herein. Also provided are methods of making compounds of formula (I), and methods involving the compounds or compositions for treating disorders and diseases described herein.

Abstract: An artificial intelligence testing apparatus may include processing circuitry configured to execute instructions that, when executed, cause the apparatus to create initial sample points based on a simulation received at the apparatus, and employ cyclic evaluation of the simulation until a stopping criteria is met. Employing the cyclic evaluation includes running the simulation at design points for a set of queries associated with a current iteration of the cyclic evaluation, training a set of meta-models of parameter space associated with the simulation for the current iteration, computing a set of metrics for the current iteration, and employing a selected sampling approach to select a new set of design points for a next iteration of the cyclic evaluation.

Abstract: An illustrative example fuel cell component includes a plate with a plurality of flow channels in at least one side of the plate. Each of the flow channels has a length between an inlet and an outlet. Each of the flow channels has a width and a depth, which are transverse to the length. At least some of the flow channels include a portion near the inlet and the width or the depth of the portion is greater than the width or depth along a majority of the length of those flow channels.

Abstract: An illustrative example porous fuel cell component includes a plurality of fibers, a plurality of first pores defined by spaces between the fibers, and a plurality of second pores defined by an interior space in at least some of the fibers. Another illustrative example porous fuel cell component includes a plurality of first fibers and a plurality of second fibers that are different than the first fibers. The second fibers are hollow.

Abstract: A mosquito surveillance device includes one or more mosquito traps having a camera capable of taking images of mosquitos and transmitting the images electronically to a receiver. Suitable traps include an ovitrap, for example. Images may be transmitted from inside or outside the trap to a receiver using low bandwidth cellular phone networks. The images are processed and displayed using software forming mosquito data. The images may be analyzed and the number of live mosquitos identified, the number of dead mosquitos identified, the species of mosquitos identified, or mapped vector densities in real time identified preferably at high resolution.

Abstract: An illustrative example fuel cell assembly includes at least one cooler and a plurality of fuel cells each having an anode and a cathode. Each of the anodes includes an anode flow plate configured to allow fuel to flow through the anode. The anode flow plates have a respective flow resistance that varies among at least some of the anodes based on a distance between the corresponding anode and the cooler.

Abstract: Through a first processing thread, a first database is accessed via a first API to retrieve a list of event objects of the first database. Through a second processing thread, for each of the event objects, participant identifiers (IDs) are determined from the event object. For each of the participant IDs, a domain ID is extracted from the participant ID. A list of one or more entity objects are identified based on the domain ID, where the entity objects are stored in a second database such as a task database storing and managing many tasks. At least one attribute of at least one of the entity objects is modified based of the participant ID and the domain ID, which generates a modified entity object. Through a third processing thread, any event objects that have been modified are transmitted to the second database via a second API over the network.

Abstract: Through a first processing thread, a first database is accessed via a first API to retrieve a list of event objects of the first database. Through a second processing thread, for each of the event objects, participant identifiers (IDs) are determined from the event object. For each of the participant IDs, a domain ID is extracted from the participant ID. A list of one or more entity objects are identified based on the domain ID, where the entity objects are stored in a second database such as a task database storing and managing many tasks. At least one attribute of at least one of the entity objects is modified based of the participant ID and the domain ID, which generates a modified entity object. Through a third processing thread, any event objects that have been modified are transmitted to the second database via a second API over the network.

Abstract: A plant support system includes a support ring having at least one wall portion, and at least one support beam coupled to the at least one wall portion and configured to increase rigidity of the at least one wall portion. Further, the plant support system also includes a base coupled to the at least one wall portion and having at least one stationary clamping surface; a clamp spine having a movable clamping surface situated opposite the at least one stationary clamping surface; and a plurality of spring leaves coupled to the clamp spine and configured to bias the clamp spine.