Abstract: A computer-readable medium includes computer-executable instructions that cause a processing unit of a user device to instruct a user to stand a predetermined distance from the user device, acquire an image of the user, and determine a user interpupillary distance based on the acquired image. The user interpupillary distance indicates a distance between the user's pupils in terms of pixels. The computer-executable instructions further cause the processing unit to determine a current distance between the user and the user device based on the user interpupillary distance, a predetermined interpupillary distance, a width of the acquired image in terms of pixels, and a field of view of the camera. Additionally, the computer-executable instructions cause the processing unit to display the current distance between the user and the user device on a display and display an eye chart when the determined current distance is equal to the predetermined distance.

Abstract: A computer-readable medium includes computer-executable instructions that cause a processing unit of a user device to instruct a user to stand a predetermined distance from the user device, acquire an image of the user, and determine a user interpupillary distance based on the acquired image. The user interpupillary distance indicates a distance between the user's pupils in terms of pixels. The computer-executable instructions further cause the processing unit to determine a current distance between the user and the user device based on the user interpupillary distance, a predetermined interpupillary distance, a width of the acquired image in terms of pixels, and a field of view of the camera. Additionally, the computer-executable instructions cause the processing unit to display the current distance between the user and the user device on a display and display an eye chart when the determined current distance is equal to the predetermined distance.

Abstract: A computer-readable medium includes computer-executable instructions that cause a processing unit of a user device to instruct a user to stand a predetermined distance from the user device, acquire an image of the user, and determine a user interpupillary distance based on the acquired image. The user interpupillary distance indicates a distance between the user's pupils in terms of pixels. The computer-executable instructions further cause the processing unit to determine a current distance between the user and the user device based on the user interpupillary distance, a predetermined interpupillary distance, a width of the acquired image in terms of pixels, and a field of view of the camera. Additionally, the computer-executable instructions cause the processing unit to display the current distance between the user and the user device on a display and display an eye chart when the determined current distance is equal to the predetermined distance.

Abstract: A method is disclosed for modifying a dynamic of an online game for a user based on characteristics of an advertising campaign that led to an acquiring of the user into the online game of a game networking system. An acquisition of a user into the online game is identified. A characteristic of an advertising campaign that led to the acquisition of the user into the online game is identified. A dynamic of the online game is modified based on the characteristic of the advertising campaign. In various embodiments, the modifying of the dynamic includes modifying initial characteristics of the online game.

Abstract: A method is disclosed for acquiring users to play one or more online games of a game networking system. An acquiring of a user into an online game of the game networking system is identified. Information pertaining to the acquiring of the user is determined. This information includes a game identifier, a campaign identifier, and a user identifier. A map of the information is generated. The map represents relationships between the user identifier, the campaign identifier, and the game identifier. An action based on the map of the information is performed.

Abstract: A surgical clamp including a first arm and a second arm, a source of high intensity unfocused ultrasound the source coupled to the first arm, and an ultrasound reflector coupled to the second arm is provided. At least one of the first arm and the second arm is moveable to position the reflector to reflect non-focused high intensity ultrasound emitted by the source and to clamp an organ or tissue intermediate the source and the reflector.

Abstract: A forming fabric has a paperside warp layer and a machine side warp layer. The fabric comprises at least one set of machine side wefts and at least one set of weft triplets, the weft triplets together forming two continuous weft paths on the paperside. All of the weft triplets interweave with at least some paperside warps and at least some machine side warps.

Abstract: A forming fabric has a paperside warp layer and a machine side warp layer. The fabric comprises at least one set of machine side wefts and at least one set of weft triplets, the weft triplets together forming two continuous weft paths on the paperside. All of the weft triplets interweave with at least some paperside warps and at least some machine side warps.

Abstract: A backstand threading device to be mounted on a paper sheeter to permit an operator to move the device and himself along the length of the paper sheeter to thread each of the plurality of webs moving through the paper sheeter.