A vorticity filament is investigated experimentally using the transmission of an ultrasonic wave through the flow.

We examined the transmission of the alleles of the Val145Ile and the dinucleotide repeat polymorphisms using the transmission disequilibrium test.

We found no evidence for linkage of the ADRA2A gene with ADHD, using the transmission disequilibrium test in this set of families.

We tested the hypothesis that GRIN1 polymorphisms were associated with schizophrenia using the transmission disequilibrium test (TDT) and comparing allele frequencies between cases and controls.