Return loss is caused by impedance mismatch between circuits. Mapping is a way of resolving the object-relational impedance mismatch problem. This problem is called "object-relational impedance mismatch". The strength of this effect depends on the size of the refractive index mismatch. There is also evidence for GC bias in the mismatch repair process. These difficulties are referred to as the object-relational impedance mismatch. Their 2016 article found a strong indication that racial preference results in a mismatch effect. This can lead to the formation of undesirable phases which contribute to the mismatch stress. These behaviours led to the proposal that MutH determines which strand contains the mismatch. Some organizations exist with a mismatch between name and function. It is caused by a mismatch between visual input and vestibular sensation. Their 2016 article found a strong indication that affirmative action results in a mismatch effect. A compelling example presented is sensitivity to "mismatch" stimuli. BRCA1 interacts with the DNA mismatch repair protein MSH2. Communication "is" possible over a connection in spite of a duplex mismatch.