(Be ready to show students the 19-slide How Does an Ultrasonic Sensor Work? Presentation, a Microsoft Â® PowerPoint Â® file, to teach the lesson. In advance, make copies of the Ultrasonic Sensor Pre-Quiz and Ultrasonic Sensor Post-Quiz, one each per student, provided as attachments and slides.
Progression. Testicular cancer (specifically, germ cell tumors) is an aggressive cancer, doubling in size every 10 to 30 days. If not treated, testicular cancer can spread via the lymphatic pathways.The lymph glands around the aorta and the vena cava at the level of the kidneys are the first to be involved.n advanced cases it can spread to the lungs, liver, brain, bone, kidney, adrenal gland, and spleen. Without treatment, a testicular cancer patient will die on average 2-3 years from time of diagnosis.
The incubation period-the time from exposure to RSV until you have symptoms-ranges from 2 to 8 days but usually is 4 to 6 days. You are most likely to spread the virus within the first several days after symptoms of RSV infection begin. You remain contagious for up to 8 days.Babies and young children may spread the virus for at least 3 to 4 weeks. Many different viruses can cause lower respiratory tract infections in children. These viruses can cause symptoms that are similar to an RSV infection.he incubation period-the time from exposure to RSV until you have symptoms-ranges from 2 to 8 days but usually is 4 to 6 days. You are most likely to spread the virus within the first several days after symptoms of RSV infection begin. You remain contagious for up to 8 days.