If your database is running fine right now, why maintain a second copy somewhere else? Because machines break, networks fail, and data centers flood. Strip away all the complexity and replication comes down to one word: writes. Every change on one machine has to find its way to every other copy — how you handle that propagation determines everything about your system's behavior.

Stronger systems matter for cancer care in Kenya Each cancer journey is unique, shaped by factors such as family, finances, geography and timing. This year’s World Cancer Day theme, United by Unique , highlights our shared responsibility to build systems that address individual needs. Effective policies provide funding, set guidelines and design adaptable systems for diverse patient experiences. By using these policy tools, policymakers can ensure care is tailored to each per

Lessons from Handling patient data in the HIV Context