Transporter (#16 in Ell Donsaii Stories)

This is the sixteenth book in a series of near future Hard-SciFi Thrillers. Their heroine Ell Donsaii has a nerve mutation that’s rendered her a genius as well as providing astonishing athletic abilities. Her genius has let her revolutionize our world with a number of inventions, including instantaneous communications and trans-dimensional portals that deliver fuel, water, and food all around the world
In “Transporter,” Ell and her friend Roger think have found a way to transport people without the pain and seizures that have plagued attempts in the past. This will change the world in untold ways.
Having left the country to get away from all the attention brought by the attack on Ell’s son Zage in the last book, they find themselves confronted by debt-slavery in the Dominican Republic. Rather than (as so many of us do) just pretending it isn’t happening, they decide to do something about it.
Zage’s working to evaluate his promising test-tube Alzheimer’s results in an animal model. But while this is being done, Ell’s grandmother is becoming more and more demented. The ethical question of whether or not to try an unproven treatment in her presents them with a terrible dilemma.