Secondary Structure. This is where the secondary structure comes in. The secondary structure is a repetitive 3-D structure of a protein. These are things that people often come into contact with when they're looking at protein structures.
If your fish are more heat tolerant, try increasing the temperature to 32 C/89.5 F for the first 3-4 days to kill the Ich. Then reduce temperature slowly to 30 C/86 F, and hold it there for an additional 6-7 days, or until a total of 10 days have passed.
Agreed with hunter. 45 is safe, but of course it will heat up under load, and that's what matters. Figure out those temperatures and you can know if you're safe or not. Run Prime95 and HWMonitor. Prime95 is a stress test that will put you under maximum load, and after about 30 minutes you'll see the highest temperatures you'll reach, so you can watch those with HWMonitor. It's much better than playing a game for 4 hours and watching your temps, or playing and your computer suddenly shutting off.