How to Choose a Phono Cartridge. Listening to music recordings on vinyl records has been popular since the 1950s, while similar shellac records date to the early twentieth century. Vinyl remains popular even today in both the hi-fidelity...
Baby Thresholds. Baby Threshold or âend mouldingâ is typically used at the exterior of doorways as a transition between flooring and the doorway threshold. It can also be used as a transition from a wood floor to a different flooring surface when the reducer wonât do. Our standard Baby Threshold or âend-mouldingâ dimensions are as follow:
Newborn mask ventilation. Seventy doctors and nurses from neonatal units administered positive pressure ventilation to a term newborn manikin using a Neopuff T-piece device. Recordings were made (1) before training, (2) after training in mask handling and (3) 3 weeks later. Leak and obstruction were calculated.