Barbie Barbie, effect self-image in young girls. Dittmar, Halliwell, and Ive gave picture books to girls age 5–8, one with photos of Barbie and the other with photos of Emme, a doll with more realistic physical features. The girls were then asked about their ideal body size. Their research found that the girls who were exposed to the images of Barbie had significantly lower self-esteem than the girls who had photos of Emme. Barbie Barbie is a fashion doll manufactured by the American toy company Mattel, Inc. and launched in March 1959. American businesswoman Ruth Handler is credited with the creation
Air handler The blowers in an air handler can create substantial vibration and the large area of the duct system would transmit this noise and vibration to the occupants of the building. To avoid this, vibration isolators (flexible sections) are normally inserted into the duct immediately before and after the air handler and often also between the fan compartment and the rest of the AHU. The rubberized canvas-like material of these sections allows the air handler components to vibrate without transmitting this motion to the attached ducts. The fan compartment can be further isolated by placing it on a spring suspension, which