Abstract: An improved backplane apparatus for transmitting signals to and from a modem system. The modem system includes more than one modem for transmitting data via at least one telephone line and via at least one network. The modem system has a first bus for management signal communication with the modems at a predetermined first data rate, and a second bus for transmitting data between the telephone line and the modems at a predetermined second data rate greater than the first data rate. The modem system also has a third bus for transmitting data between the modems and the network at a predetermined third data rate greater than the second data rate, and a fourth bus for distributing DC power and ground potential. The modem system defines a first impedance for terminating the first bus, a second impedance for terminating the second bus, and a third impedance for terminating the third bus.

Abstract: A hinged connector for joining a first structural member to a second structural member in a support structure, comprising first and second metal connector members each having a base portion for attachment to a respective structural member and a tab integral with the base portion. Each base portion includes an integral upset gusset welded to the tab of the respective connector member to add support to the tab and add stiffness to the connector member.

Abstract: A calendar and mail sorting structure which includes a series of monthly calendar sheets joined to a bottom sheet member by a binding along top edges of the sheets and with the sheets being rotatable on the binding enabling each sheet to be successively rotated into a front viewing position. Each of the sheets have a series of rows of slots. Indicia is mounted on front sides of the calendar sheets in adjacency to the slots for viewing when each sheet is successively rotated into the front viewing position at a front side of the calendar. Mail supports are mounted on the calendar and mail supporting structure between the bottom sheet member and the current monthly calendar sheet for supporting mail from behind the current monthly sheet when mail is inserted through the slots from a front viewing position of the current monthly calendar sheet while leaving a part of the mail protruding from the slot at a front side of the current monthly calendar sheet.

Abstract: A self-contained dispensing mechanism includes a main body joined to a reservoir, cylinder and piston structure on the main body and a stop assembly for securing containers on said main body. A pump is provided in the main body for pumping liquid from the reservoir to the cylinder to actuate the piston therein. A piston rod, secured to the piston and movable therewith actuates push rods with push ends for dispensing viscous material from the containers. The push ends are adjustably secured on the push rods for accommodating different sizes of containers.

Abstract: Compounds of general formula I: ##STR1## Wherein: R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 are variables. These compounds have collagenase inhibition activity and are useful in the management of disease involving collagen degradation. Its uses include rheumatoide arthritis, corneal ulceration, osteoporosis, periodontitis, gingivitis and tumor invasion.

Abstract: A modem suitable for transmitting encrypted data over voice-grade telephone line. The modem is implemented by the combination of integrated circuit components including a microprocessor, a serial communications controller which communicates with connected data terminal equipment, and a modulator/demodulator for translating between voice band tone signals and digital data. Pseudo random number generators are employed at both the transmitting and receiving stations to supply identical sequences of encryption keys to a transmitting encoder and a receiving decoder. An initial random number seed value is made available to both stations. The random number generators are advanced at times determined by predetermined characteristics of the data being transmitted so that, after transmission has taken place, the common encryption key can be known only to the transmitting and receiving stations.

Abstract: Peptide derivatives of 3-5 optionally substituted amino acids, a process for preparing the peptides, a pharmaceutical composition containing at least one peptide derivative active against glaucoma and intraocular hypertension and a method for treating glaucoma and intraocular hypertension.

Abstract: A cutting machine for sheet material comprising a frame, a stationary knife on the frame and a reciprocating blade cooperating with the stationary knife. A motor on the frame is connected to a gear reducer that is in turn connected to a single push rod through a crank. The push rod is operatively connected to a torque tube that is connected adjacent its ends by link means to the reciprocating blade. Rotation of the crank by the gear reducer will actuate the single push rod and the torque tube operatively connected thereto to reciprocate the reciprocating blade. Spring means for assisting movement of the reciprocating blade are readily adjusted from exterior of the frame of the cutting machine. A rotatable cam follower on the reciprocating blade engages a guide block on the frame for moving the reciprocating blade into proper cooperative engagement with the stationary knife in use.

Abstract: The invention concerns compounds of the formula I: ##STR1## wherein the variables are described in the specification which are antagonists of platelet activity factor.

Abstract: Disclosed are methods and compositions for preparing rigid foams by contacting a polyisocyanate with a polyol mixture comprising(a) from about 40-95% by weight of a polyester or polyether polyol;(b) a catalytic amount of a catalyst system comprising a primary catalyst and an amino acid salt catalyst derived from sarcosine; and(c) a non-chlorofluorocarbon blowing agent.

Abstract: The present invention is a method and an apparatus for automatically tuning a plant. The method includes the steps of applying a plurality of sinusoidal signals to the plant, and measuring the frequency response of the plant to the plurality of sinusoidal signals to detect frequencies at which the plant is resonant. The coefficients of at least one digital filter are calculated such that the at least one filter when combined with the plant suppresses the detected resonances. The method further includes applying at least one sinusoidal signal having a frequency substantially equal to a crossover frequency of the system to the at least one filter and plant, and measuring the frequency response to calculate the magnitude and phase response of the filters and plant at that frequency. The coefficients of the compensator are calculated such that when combined with the plant and the at least one filter the combination provides a response which yields said predetermined system response.

Abstract: The invention relates to radiolabeled imaging of a mammalian body. The invention in particular provides for reagents labeled with technetium-99m for such imaging. The invention specifically provides somatostatin, somatostatin derivatives, somatostatin analogues or peptides that bind to the somatostatin receptor and contain at least 2 cysteine residues that form a disulfide or wherein the disulfide is reduced to the sulfhydryl form that are labeled with technetium-99m and that can be targeted to specific sites within a mammalian body for imaging.

Abstract: An improved adapter assembly for use in a railcar truck where an axle and bearing are loosely journaled in the pedestal area of a side frame, the adapter assembly being mounted above the bearing in the pedestal opening and including an adapter plate which is mounted on the top of the adapter, the adapter together with the bearing and axle being capable of lateral movement relative to the side frame.

Abstract: A digital signal transmission using OFDM modulation scheme in which the valid transmission data can be reproduced without requiring a recovery of the carriers at a receiver side. On a transmitter side, the transmission data sequence in which predetermined reference data for each carrier are placed among valid transmission data is modulated according to an orthogonal frequency division multiplexing (OFDM) modulation scheme using a plurality of carriers and obtained OFDM transmission signals are transmitted. On a receiver side, the received OFDM transmission signals are demodulated to obtain received data sequence containing valid received data and received reference data, and the valid transmission data are estimated from the received data sequence according to the valid received data, the received reference data, and the predetermined reference data for each carrier.