Visualization of Disruptive Bubble Behavior in Ultrasonic Fields

Disruptive behavior

Prevalence of Disruptive Behavior Disorders in Elementary-School Students of Khorramabad

Namdari P1, Nazari H2 1. Instructor, Department of Social Medicine, Faculty of Medicine, Lorestan University of Medical Sciences 2. Assistant Professor, Department of Psychiatry, Faculty of Medicine, Lorestan University of Medical Sciences, Iran Abstract Background: Disruptive Behavior Disorder (DBD) is one of the most prevalent psychiatric disorders starting from childhood and is co...

Neuroimaging findings in disruptive behavior disorders.

Decades of research have shown that youths with disruptive behavior disorders (DBD) are a heterogeneous population. Over the past 20 years, researchers have distinguished youths with DBD as those displaying high (DBD/HCU) versus low (DBD/LCU) callous-unemotional (CU) traits. These traits include flat affect and reduced empathy and remorse, and are associated with more severe, varied, and persis...

Radiation damage of polymers in ultrasonic fields

Radiation damage has always been a topic of great interest in various fields of sciences. In this work, an attempt is made to probe into the effect of subthreshold ultrasonic waves on the radiation damage created by irradiation of deuterons in polymer samples wherein the polymer samples act as model systems. Two equal volumes of radiation damage were produced in a single polymer sample wherein ...

Visualization of a confined accelerated bubble

High-speed photography was used to study the collapse of a confined two-dimensional, air cavity in water, subjected to a propagating pressure disturbance. The 5–6 mm diameter cavity was confined in a rectangular duct. A sustained pressure disturbance was created by an accelerating piston in contact with the water 240 mm away from the bubble. The pressure increased from 0.1 MPa to about 0.12 MPa...