PAGE 459 A Schmitt trigger circuit which uses one multiple output current follower differential input transconductance amplifier (MO-CFDITA), and one grounded resistor is presented in this Letter. The circuit simultaneously provides clockwise and anticlockwise hysteresis, which are independently and electronically controllable. This research from India has applications in electric motor devices and dc-dc converters. PAGE 450 A low cost real-time model for mean arterial pressure (MAP) has been developed by researchers in Brazil. The model simulates the response of patients to the drug sodium nitroprusside (SNP). Compared with real patient data for a targeted MAP of 100 mmHg, the model gave an error of less than 3%. Schmitt trigger circuit using a single MO-CFDITA and grounded resistor. PAGE 487 A high-frequency waveguide bandpass filter based on TM120 resonators is proposed. TM120 resonators are nearly twice as large as conventional TE101 resonators and have a reduced aspect ratio, making the computer numerical control (CNC) milling process easier. The technology, a result of collaboration between researchers from the UK and China, can be applied to terahertz waveguide filters. Low cost, real-time mean arterial pressure model to simulate response to drug SNP. PAGE 454 A local common-mode feedback scheme for differential difference amplifiers is presented. This scheme improves the speed and accuracy of continuous-time common-mode feedback (CMFB) circuits without the need for extra power or supply voltage. Researchers from Spain and China used a 0.5 µm CMOS chip prototype to test the technology. W-band filter based on TM120 resonators. PAGE 493 Researchers from China have used a digital Wiener filter to enable PAM-4 single lane 100 Gb/s over 4-km and 320 Gb/s (4×80 Gb/s) over 8-km standard single-mode fibre (SSF). The work demonstrates the potential application of alternative digital signal processing methods to enable high-speed links in short reach optical interconnect. Improved accuracy and speed without extra power for CMFB circuits. Weiner filters used in short reach optical interconnect.