Abstract: Provided herein are scaffolds and methods useful to promote the formation of functional clusters on a tissue, for example, motor endplates (MEPs) or a component thereof on skeletal muscle cells or tissue, as well as the use of scaffolds so produced for repairing a tissue injury or defect.

Abstract: Provided herein are scaffolds and methods useful to promote the formation of functional clusters on a tissue, for example, motor endplates (MEPs) or a component thereof on skeletal muscle cells or tissue, as well as the use of scaffolds so produced for repairing a tissue injury or defect.

Abstract: A vacuum cleaner dusting attachment. An attachment member is connected to a vacuum cleaner hose at a first end of the attachment member. The second end of the attachment member is attached to a dusting member. The first end of the attachment member is aligned with the second end of the attachment member with respect to a longitudinal axis. The dusting member is maintained attached to the attachment member by a plurality of support members extending from the dusting member to the attachment member. The support members are configured to create a vortex for suctioning dust.

Abstract: A vacuum cleaner dusting attachment. An attachment member is connected to a vacuum cleaner hose at a first end of the attachment member. The second end of the attachment member is attached to a dusting member. The first end of the attachment member is aligned with the second end of the attachment member with respect to a longitudinal axis. The dusting member is maintained attached to the attachment member by a plurality of support members extending from the dusting member to the attachment member. The support members are configured to create a vortex for suctioning dust.

Abstract: A method for converting HF alkylation unit to a sulfuric acid alkylation unit comprising the steps of retaining a reactor, an acid settler and a fractionation section from the HF alkylation unit and modifying at least a portion of the HF alkylation unit to produce a converted alkylation unit that is adapted to use sulfuric acid as a reaction catalyst.

Abstract: A data display communication system wherein data generated locally by a keyboard or generated remotely and communicated by modems is displayed on a display device. Data displayed on the screen can be edited or reformatted prior to storage, print-out, or transmission to a remote location. Data communicated between storage and the central processing unit is handled in blocks that make up one full line of characters on the display device. All edit and format functions are performed on the basis of these blocks of data. Timing for the display device controls the operation of the system. The communication system utilizes a microprocessor operating in conjunction with specific hardware logic to handle display oriented operations.

Abstract: An apparatus capable of transmitting digital data at high data rates over a communication link is disclosed. A carrier signal is modulated by serial groups of digital data signals to be transmitted during a plurality of successively appearing modulation periods. The data-modulated carrier is represented by a unique group of digital signals stored in a memory. The memory upon command, reads out a predetermined sequence of digital signals with each predetermined sequence representing the signal shape of a digital data modulated carrier signal which appears as though it has been passed through a narrow band limited linear phase network. The memory stores a predetermined number of such sequences of digital signals.The number of sequences is four in one preferred embodiment of this invention. In that preferred embodiment, each sequence occupies a spectrum frame which extends in time over four successive modulation periods.