Abstract: Methods of using grids in connection with suitable microscopy techniques, such as for determining the structure of target compounds including proteins, are disclosed. Said grid comprising a coating modified with one or more capture agents and a deactivating agent.

Abstract: Systems and methods are described herein for detecting the inadvertent modification to or deletion of data in a data store and taking automated action to prevent the deletion of data from becoming permanent. The described techniques may also be utilized to detect anomalous changes to a policy or affecting storage of data and taking automated action to mitigate the effects of those changes. In one example, events generated as a result of requests to perform operations on data objects in a data storage service may be obtained, where at least some of the events indicate a failure to fulfill respective requests. Data from the events may be input into a model to detect an anomaly indicative of inadvertent modification of data. As a result of detection of the anomaly, a set of operations may be initiated or performed to prevent the inadvertent modification of data from becoming permanent.

Abstract: Churn-aware training of a classifier which reduces the difference between predictions of two different models, such as a prior generation of a classification model and a subsequent generation. A second dataset of labelled data is scored on a prior generation of a classification model, wherein the prior generation was trained on a first dataset of labelled data. A subsequent generation of a classification model is trained with the second dataset of labelled data, wherein in training of the subsequent generation, weighting of at least some of the labelled data in the second dataset, such as labelled data threat yielded an incorrect classification, is adjusted based on the score of such labelled data in the prior generation.

Abstract: A mechanical trigger device comprises a reset screw configured to re-assemble the mechanical trigger device. The resettable screw may be disposed in a slot in a housing of the mechanical trigger device and coupled to a firing pin disposed within the housing. The reset screw may be configured to translate the firing pin within the housing and re-engage a sear after use of the mechanical trigger device.

Abstract: Embodiments of a cashdrawer exoskeleton system are disclosed. In one embodiment, a modular base piece has an integrated fastener configured to facilitate a coupling to a cash drawer. An aperture is formed through the top surface of the modular base piece and leads to an area where the cash drawer is positioned when the modular base piece is coupled to the cash drawer utilizing the integrated fastener. At least one spacer is then configured to facilitate creation of a gap between the modular base piece and the cash drawer when the modular base piece is coupled to the cash drawer utilizing the integrated fastener.

Abstract: Aspects of the disclosure generally relate to connecting panoramic images. One or more computing devices may load and display a first panoramic image captured at a first location and receive a selection of an area on the first panoramic image, the area corresponding to where a connection to other panoramic images may be made. The one or more computing devices may identify and display one or more nearby panoramic images which were captured near the first location and receive a selection of one of the one or more nearby panoramic images. The one or more computing devices may display the selected panoramic image and the first panoramic image and align the selected panoramic image with the first panoramic image such that the selected panoramic image is oriented in the same direction as the first panoramic image. The one or more computing devices may connect the selected panoramic image with the first panoramic image.

Abstract: Aspects of the disclosure generally relate to connecting panoramic images. One or more computing devices may load and display a first panoramic image captured at a first location and receive a selection of an area on the first panoramic image, the area corresponding to where a connection to other panoramic images may be made. The one or more computing devices may identify and display one or more nearby panoramic images which were captured near the first location and receive a selection of one of the one or more nearby panoramic images. The one or more computing devices may display the selected panoramic image and the first panoramic image and align the selected panoramic image with the first panoramic image such that the selected panoramic image is oriented in the same direction as the first panoramic image. The one or more computing devices may connect the selected panoramic image with the first panoramic image.

Abstract: Aspects of the disclosure generally relate to connecting panoramic images. One or more computing devices may load and display a first panoramic image captured at a first location and receive a selection of an area on the first panoramic image, the area corresponding to where a connection to other panoramic images may be made. The one or more computing devices may identify and display one or more nearby panoramic images which were captured near the first location and receive a selection of one of the one or more nearby panoramic images. The one or more computing devices may display the selected panoramic image and the first panoramic image and align the selected panoramic image with the first panoramic image such that the selected panoramic image is oriented in the same direction as the first panoramic image. The one or more computing devices may connect the selected panoramic image with the first panoramic image.

Abstract: Techniques are described for switching streaming of media content between content delivery networks (CDNs) during mid-stream. An initial CDN can be used to stream the media content. The performance of a second CDN can be measured by requesting a fragment of the media content as a measurement or test fragment. Streaming of the media content can be switched to the second CDN if its performance is determined to be better than the initial CDN.

Abstract: A water bottle filling system includes a water collection vessel, a water storage reservoir having an inlet valve and an outlet valve, an air pump connected to the water storage reservoir, a coupling downstream from the outlet valve and a refillable water bottle connected to the coupling. A method for collecting, cleaning and dispensing potable water into a refillable water bottle is also provided.

Abstract: A virtual reality (VR) kit for storing and transporting components of a VR system is described. The VR kit includes receptacles for receiving and/or retaining positions of one or more of a VR headset, a tablet device, a controller, and a charging module. The VR kit can also include receptacles for receiving and/or retaining positions of a set of headphones, a set of earphones, and other material associated with use of a VR system. The VR kit includes a handle that maintains balance of the system during transportation the components of a VR system, while allowing a user to carry other objects. The VR kit is also designed for use in a clinical setting, by including materials that promote sanitization of components of a VR system. The VR kit is compact to facilitate storage of multiple units of the system in small spaces.

Abstract: An artificial reality system and method dynamically provides digital content to a user for treatment of a mental health condition. A digital content processor transmits digital content (e.g., a video stream) to a user. A state detection system monitors one or more states of the user as the user interacts with the digital content in a virtual environment. The digital content processor receives information from the state detection system and/or input from a clinician device about one or more states of the user, and generates a modified video stream based on the information and/or the inputs. The digital content processor transmits the modified video stream to a device associated with a virtual reality platform.

Abstract: An artificial reality system and method provides immersive digital content to a user via a device with limited capabilities. A digital content processor generates a video stream of a real-world environment in a first video resolution regime. The digital content processor identifies static regions across frames of the video stream. The digital content processor applies one or more of a stitching operation, a blending operation, and a layering operation to replace static regions of the video stream with still image pixels. The digital content processor transmits the modified video stream to a display unit of a virtual reality (VR) device at a second video resolution regime of lower resolution than the first video resolution regime.

Abstract: Disclosed are various embodiments for predictive caching of content to facilitate use of the content. If account is likely to commence use of a content item, the content item is cached before the use is commenced. The cache may be divided into multiple segments with different content selection criteria.

Abstract: A water bottle filling system includes a water collection vessel, a water storage reservoir having an inlet valve and an outlet valve, an air pump connected to the water storage reservoir, a coupling downstream from the outlet valve and a refillable water bottle connected to the coupling. A method for collecting, cleaning and dispensing potable water into a refillable water bottle is also provided.

Abstract: Disclosed are various embodiments for client-side predictive caching of content to facilitate use of the content. If account is likely to commence use of a content item through a client, the client is configured to predictively cache the content item before the use is commenced. In doing so, the client may obtain an initial portion of the content item from another computing device. The client may then initialize various resources to facilitate use of the content item by the client. The client-side cache may be divided into multiple segments with different content selection criteria.

Abstract: A gun cleaning system and method is disclosed. The system includes a housing with a retractor. A tether is coupled with the retractor. A connector hoop is disposed at one end of the tether. A cleaning attachment separate from the housing and the tether is configured to detachably couple with the tether. The cleaning attachment has a coupling recess with an opening providing access to the recess. Inserting the tether's connector hoop into the recess couples the tether and the cleaning attachment. A catch adjacent to the opening prevents the connector hoop from exiting the recess. A method of cleaning a gun bore includes passing the tether through the bore, attaching a cleaning patch to the cleaning attachment, coupling the cleaning attachment and the connector hoop, and pulling the tether and the cleaning hoop member back through the bore in the opposite direction. Other embodiments are also included herein.

Abstract: Disclosed are various embodiments for predictive caching of content to facilitate use of the content. If account is likely to commence use of a content item, the content item is cached before the use is commenced. The cache may be divided into multiple segments with different content selection criteria.

Abstract: Embodiments include a disposable shooting target. The disposable shooting target can include a substrate, a first ink layer, a second ink layer, and a third ink layer. The first ink layer can contact the substrate. The second ink layer can be disposed over the substrate. The second ink layer can include a first color that defines a first portion of a target image. The second ink layer can also include a second color that defines a second portion of the target image. The third ink layer can be disposed over the second ink layer. The third ink layer can be partially translucent. The third ink layer can partially obscure portions of the target image. Other embodiments are also included herein.

Abstract: A method and apparatus for focusing light onto a plurality of solar cells. The apparatus comprises a plurality of solar cells, a plurality of groups of reflectors corresponding to the plurality of solar cells, and a control module in communication with the plurality of solar cells and the plurality of groups of reflectors. The control module includes control logic for monitoring an electrical output from the plurality of solar cells and repositioning the plurality of groups of reflectors when the electrical output is below a selected threshold.