Yahoo Finance

Per4mance Development LLC Launches Patented DIRS-R Differential Brace and Ultimate Reinforcement Package for High-Performance Dodge & Chrysler V8 Models

HARRISBURG, Pa., Oct. 1, 2025 /PRNewswire/ -- GetPer4mance.com, the official home of Per4mance Development LLC, has expanded its patented Differential Integration and Reinforcement System (DIRS) ...
Morningstar

Per4mance Development Fires Up the Mopar Racing Scene with the Next Evolution of Its Patented DIRS-R Differential Brace and Ultimate Reinforcement Package

The advanced DIRS-R takes everything the original DIRS accomplished and refines it for drag strips, sticky tires, and high-power builds. Built for serious strip and street use, it delivers ...
JSTOR Daily

REDUCTION OF TRICHOTILLOMANIA IN A RETARDED CEREBRAL PALSIED CHILD USING OVERCORRECTION, FACIAL SCREENING, AND DIFFERENTIAL REINFORCEMENT OF OTHER ...

Trichotillomania in a cerebral palsied boy was treated using a combination of differential reinforcement for other behavior (DRO) and overcorrection, and DRO and facial screening. The combination of ...