Carbon and nutrient flow at the soil root interface is bidirectional, with C being lost from roots as rhizodeposits, and simultaneously taken up from the soil, predominantly in the form of low molecular weight solutes and amino acids28,29.
The relationship between depression and metabolic syndrome is bidirectional, with the syndrome also predictive of increased risk for depression [ 100].
In ϕKMV, genome replication is bidirectional with the origin and terminus in the DNA polymerase gene and an internal virion protein gene, respectively [ 33].
The relationship of depression and disability is bidirectional with empirical evidence suggesting that late-life depression promotes disability, and likewise, disability increases the risk of depression.
The Internet differs from other media in one major way: the communication process is bidirectional, with an information source in the active role and the receiver in a more passive role [ 17].
While most studies have focused on diabetes as a risk factor for TB, emerging evidence suggests that the relationship is bidirectional, with a higher prevalence of diabetes found among TB-infected people (33).
