3 research outputs found

    Outcomes from elective colorectal cancer surgery during the SARS-CoV-2 pandemic

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    This study aimed to describe the change in surgical practice and the impact of SARS-CoV-2 on mortality after surgical resection of colorectal cancer during the initial phases of the SARS-CoV-2 pandemic

    A comparison of surgical outcomes of perineal urethrostomy plus penile resection and perineal urethrostomy in twelve calves with perineal or prescrotal urethral dilatation

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    Abstract The clinical diagnosis, ultrasonographic findings, surgical management, outcome, and survival rate of perineal or prescrotal urethral dilatation in 12 male calves are described. All calves were crossbred and intact males. The most noticeable clinical presentations were perineal (n= 10) or prescrotal (n= 2) swellings and micturition problems. The main ultrasonographic findings were oval shaped dilatation of the urethra in all animals with dimensions of 40-75 X 30-62 mm. The calves with perineal urethral dilatation were treated by perineal urethrostomy (n= 4) and partial penile transection including the dilated urethra and urethral fistulation (n= 6). Prescrotal urethral dilatations were treated by penile transection proximal to the dilatation site (n= 2). Cystitis and stricture of the urethra were recorded postoperatively for two of the calves that underwent perineal urethrostomy. Nine animals were slaughtered at normal body weight approximately 6-8 months after the surgical treatment. Three animals were slaughtered after approximately three to four months, two of them having gained insufficient body weight. Our study shows that ultrasonography is a useful tool for the diagnosis of urethral dilatation in bovine calves. Our study also shows that the partial penile transection may be a suitable and satisfactory choice of surgical treatment for correcting the urethral dilatation in bovine calves

    Design, Implementation and Assessment of a New Automatic Hydraulic Braking System

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    In this research, a new automatic braking system was designed and tested to prevent collisions between a driver’s vehicle andobstacles (vehicles, pedestrians). The primary objective of this work is to develop a safety car braking system using ultrasonicsensor and to design a vehicle with that can manage less human attention to the driving. An appropriate mechanism was used tooperate and control the brake system automatically and it different from the previous systems which operate brake pedalaccording to signals incoming. A suitable electric pump is used to provide fluid flow and pressure value and two solenoid valvesare used to control the direction of brake fluid in the hydraulic brake system.The proposed system operated using three parts; sensing part, the second part depends on using a control unit and another partdepends on a suitable actuator. It can detect the distance between obstacles and the driver’s vehicle by the ultrasonic sensor andusing a hydraulic pump and solenoids valves to operate the brake system if the driver does not push the brake pedal in the righttime to stop the vehicle, this system can automatically stop the vehicle without driver input. The performance of the system wasexcellent and the errors between measured braking time and theoretical braking time were between one and two percent
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