Attenuation is the reduction in intensity of a number of different things. It is the opposite of amplification. In physics or electronics the change is usually referred to using decibels (dB), noting the number of decibels by which a particular signal is reduced as it passes through a particular medium a certain distance. This concept is used quite a bit in the telecom industry because of its importance in determining where a repeater is needed.
Answer for DSL CBT
Dissipation of the power of a transmitted signal as it travels over a wire
None. Light and sound waves can be attenuated, but not matter.
attenuated virus consist of same virus but its capacity to cause disease has deleted by the process of attenuation.
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They are called attenuated vaccines. Attenuated means weakened, they do this usually with chemicals and then the attenuated viruses are not able to make you sick, but they are strong enough to trigger the immune response to provide immunity.An attenuated virus. Attenuated simply means weakened. For example, you will see references to this in regard to the flu vaccines. This is also abbreviated when talking about the flu vaccines as LAIV, Live Attenuated Influenza Vaccine.That is a good description of what a vaccine is, although some other substances also could be described similarly. The weakened or killed virus in a vaccine is non-threatening to most people. It can be a problem for infants under six months old, some children and adults with under-developed immune systems or who have immune system disorders.
Attenuated vaccines are created by destabilizing the virulence of the strain while still keeping the organism alive. Attenuated vaccines were first developed by Albert Calmette and Camille Guerin in their efforts to use an immunization as a cure for Tuberculosis in 1906.
Absorbed or attenuated.
B.C.G Vaccine
Angular or attenuated.
They are called live attenuated vaccines. Attenuated means weakened. The nasal mist flu vaccine is an example of a live attenuated vaccine. The vaccines for flu that are injected are made from pieces of viruses or "dead" viruses. See the related question below for more information on these two types of vaccines.
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Attenuated simply means "weakened". An attenuated flu vaccine refers to vaccines made with live viruses (so you get a good immune response), but they have been weakened chemically so that they are unable to give you the flu. There are two types of flu vaccines available in the US. What is called inactivated, inactive or "dead" vaccine and what is called "live", weakened/attenuated vaccine. The injectable vaccines (intradermal and intramuscular) are made with "dead" viruses and the nasal spray is made with "live" attenuated viruses.
An attenuated pathogen is a weakened form of a disease-causing microorganism that is used in vaccines to stimulate an immune response without causing the full-blown disease. Attenuated pathogens are less virulent than their wild-type counterparts, reducing the risk of causing illness in vaccinated individuals while still eliciting a protective immune response.