Abstract: Acoustic generating systems are provided. The acoustic generating systems include a handpiece that provides for adjustment of the penetration depth. In preferred embodiments, the adjustment of the penetration depth is provided by adjustment between a fixed part of the handpiece and an adjustable part of the handpiece. In even more preferred embodiments, adjustment of the penetration depth is provided through a plurality of interchangeable adjustable parts each configured to provide for a different penetration depth when coupled to the fixed part. Preferred embodiments further include an optical system that provides imaging of the treatment surface and is capable of adjusting to the change in penetration depth to continue to provide imaging of the treatment surface. In some embodiments, the interface between the fixed part and adjustable part of the handpiece passes through a chamber that holds a liquid acoustic coupling medium.

Abstract: Methods of treating the skin and in particular removing pigment from a tattoo are provided. In preferred embodiments, a piezoelectric transducer is placed at a plurality of locations above the skin and focused acoustic waves at 7 MHz or more are transmitted into the skin. The focal point of the focused acoustic waves is between 0.1 mm and 5 mm below the surface of the skin. The design of the piezoelectric transducer along with the frequency of operation are carefully chosen to create points of treatment with a desired size and shape. The correct amount of energy is supplied to the points of treatment to produce a lesion of a desired size and shape. The lesions are spaced and located to effect the treatment of the skin.

Abstract: Systems, methods, and non-transitory computer-readable media can provide a messaging interface that includes a first option for exchanging ephemeral messages with users of a social networking system and a second option for exchanging non-ephemeral messages with users of the social networking system; determine that a user operating the computing device has selected the first option for sending an ephemeral message; and cause the ephemeral message to be sent through the social networking system.

Abstract: Methods of treating the skin and in particular removing pigment from a tattoo are provided. In preferred embodiments, a piezoelectric transducer is placed at a plurality of locations above the skin and focused acoustic waves at 7 MHz or more are transmitted into the skin. The focal point of the focused acoustic waves is between 0.1 mm and 5 mm below the surface of the skin. The design of the piezoelectric transducer along with the frequency of operation are carefully chosen to create points of treatment with a desired size and shape. The correct amount of energy is supplied to the points of treatment to produce a lesion of a desired size and shape. The lesions are spaced and located to effect the treatment of the skin.

Abstract: Methods of treating the skin and in particular removing pigment from a tattoo are provided. In preferred embodiments, a piezoelectric transducer is placed at a plurality of locations above the skin and focused acoustic waves at 7 MHz or more are transmitted into the skin. The focal point of the focused acoustic waves is between 0.1 mm and 5 mm below the surface of the skin. The design of the piezoelectric transducer along with the frequency of operation are carefully chosen to create points of treatment with a desired size and shape. The correct amount of energy is supplied to the points of treatment to produce a lesion of a desired size and shape. The lesions are spaced and located to effect the treatment of the skin.

Abstract: Systems, methods, and non-transitory computer-readable media can provide a messaging interface that includes a first option for exchanging ephemeral messages with users of a social networking system and a second option for exchanging non-ephemeral messages with users of the social networking system; determine that a user operating the computing device has selected the first option for sending an ephemeral message; and cause the ephemeral message to be sent through the social networking system.

Abstract: Systems, methods, and non-transitory computer-readable media can provide a messaging interface that includes a first option for exchanging ephemeral messages with users of a social networking system and a second option for exchanging non-ephemeral messages with users of the social networking system; determine that a user operating the computing device has selected the first option for sending an ephemeral message; and cause the ephemeral message to be sent through the social networking system.

Abstract: Systems, methods, and non-transitory computer-readable media can determine a first ephemeral message to be shared through a first unified message thread corresponding to a group of recipients, the first ephemeral message being created by a user operating the computing device. The first ephemeral message can be provided to a social networking system for distribution to the group of recipients through the first unified message thread, wherein both ephemeral messages and non-ephemeral messages are exchanged between the group of recipients through the same first unified message thread.

Abstract: Methods of treating the skin and in particular removing pigment from a tattoo are provided. In preferred embodiments, a piezoelectric transducer is placed at a plurality of locations above the skin and focused acoustic waves at 7 MHz or more are transmitted into the skin. The focal point of the focused acoustic waves is between 0.1 mm and 5 mm below the surface of the skin. The design of the piezoelectric transducer along with the frequency of operation are carefully chosen to create points of treatment with a desired size and shape. The correct amount of energy is supplied to the points of treatment to produce a lesion of a desired size and shape. The lesions are spaced and located to effect the treatment of the skin.

Abstract: Systems, methods, and non-transitory computer-readable media can provide a messaging interface, the messaging interface including one or more options for accessing at least one unified message thread, wherein both ephemeral messages and non-ephemeral messages are exchanged between a group of users through the unified message thread. A determination can be made that a user operating the computing device has created a message to be sent through the unified message thread. The message can be provided for distribution to the group of users through the unified message thread.

Abstract: Systems, methods, and non-transitory computer-readable media can provide a messaging interface, the messaging interface including a first region and a second region, the first region being segmented from the second region; provide access to one or more ephemeral message threads in the first region, the ephemeral message threads being ranked according to one or more criteria; and provide access to one or more non-ephemeral message threads in the second region, the non-ephemeral message threads being ranked according to one or more criteria.

Abstract: Systems, methods, and non-transitory computer-readable media can provide a messaging interface, the messaging interface including a first region and a second region, the first region being segmented from the second region; provide access to one or more ephemeral message threads in the first region, the ephemeral message threads being ranked according to one or more criteria; and provide access to one or more non-ephemeral message threads in the second region, the non-ephemeral message threads being ranked according to one or more criteria.

Abstract: Systems, methods, and non-transitory computer-readable media can provide a messaging interface, the messaging interface including one or more options for accessing at least one unified message thread, wherein both ephemeral messages and non-ephemeral messages are exchanged between a group of users through the unified message thread. A determination can be made that a user operating the computing device has accessed the unified message thread. Content relating to the unified message thread can be provided for display through the computing device.

Abstract: A method of fabricating an acoustic transducer comprising: fabricating a substrate; depositing a bottom electrode on the substrate; depositing an active layer on the bottom electrode; depositing a top electrode on the active layer; wherein at least one electrode is patterned to form at least two active elements; and, wherein a ratio of a thickness coupling coefficient kt to an effective lateral coupling coefficient k31,eff of the active layer is 1.3 or greater.

Abstract: Systems, methods, and non-transitory computer-readable media can acquire a request for a map of a particular region. A first set of one or more map portions for representing a first portion of the particular region can be identified based on the particular region. The first set can be associated with a first map data source. A second set of one or more map portions for representing a second portion of the particular region can be identified based on the particular region. The second set can be associated with a second map data source. The map of the particular region can be generated based on a combination of the first set and the second set.

Abstract: Methods of treating the skin and in particular removing pigment from a tattoo are provided. In preferred embodiments, a piezoelectric transducer is placed at a plurality of locations above the skin and focused acoustic waves at 7 MHz or more are transmitted into the skin. The focal point of the focused acoustic waves is between 0.1 mm and 5 mm below the surface of the skin. The design of the piezoelectric transducer along with the frequency of operation are carefully chosen to create points of treatment with a desired size and shape. The correct amount of energy is supplied to the points of treatment to produce a lesion of a desired size and shape. The lesions are spaced and located to effect the treatment of the skin.

Abstract: In general, certain embodiments of the present disclosure provide methods and systems for a building-integrated communication system. The system comprises a building, one or more processors, and memory. The memory includes one or more programs comprising instructions for transmitting one or more data packets over a network to one or more mobile user devices, the one or more data packets including identification information for a user; authenticating the user based on the identification information; monitoring actions of the user, wherein monitoring includes adding occurrence events and corresponding locations to a data base; and predicting a future action of the user based on the monitored actions.

Abstract: An energy harvesting unit comprising: a package formed by a base and a lid, the package including a sealed interior volume and an exterior; a ledge formed in the sealed interior volume with a first cavity above and a second cavity below the ledge; a plurality of inner electrical contacts formed on the ledge; a plurality of outer electrical contacts formed on the exterior of the package wherein the outer electrical contacts are electrically connected to the inner electrical contacts through the package; and, a piezo-electric member in electrical communication with the inner electrical contacts and coupled to the ledge on a first side of the package and spanning across the cavity and coupled to the ledge on an opposite side of the package.

Abstract: In general, certain embodiments of the present disclosure provide methods and systems for a building-integrated communication system. The system comprises a building, one or more processors, and memory. The memory includes one or more programs comprising instructions for transmitting one or more data packets over a network to one or more mobile user devices, the one or more data packets including identification information for a user; authenticating the user based on the identification information; and after authenticating the user, allowing the user to be able to access certain building functions and communication channels between other authenticated users.

Abstract: Systems, methods, and non-transitory computer-readable media can provide a messaging interface, the messaging interface including a first region and a second region, the first region being segmented from the second region; provide access to one or more ephemeral message threads in the first region, the ephemeral message threads being ranked according to one or more criteria; and provide access to one or more non-ephemeral message threads in the second region, the non-ephemeral message threads being ranked according to one or more criteria.