Please capitalize where necessary: note: this is a personal homepage, and has nothing to do with hellas flying dolphins.
A: Note: This is a personal homepage, and has nothing to do with Hellas Flying Dolphins.

Q: chemotherapy treatment damages cells that have a rapid rate of growth. as well as destroying cancer cells, it adversely affects other fast-growing cells in the body.

A: Chemotherapy treatment damages cells that have a rapid rate of growth. As well as destroying cancer cells, it adversely affects other fast-growing cells in the body.

Q: saturday 10 february, 2018 61834141 requests since tuesday 16 december, 2003
A: Saturday 10 February, 2018 61834141 requests since Tuesday 16 December, 2003

Problem: whiteboard pockets are perfect for short notes, messages or check lists.
Can you repeat this sentence, but capitalize it?
Answer: Whiteboard pockets are perfect for short notes, messages or check lists.

Text: the sentiment has been long echoed by reports from technology companies with a presence in australia, such as it outsourcing company infosys, which reported last year that 50 percent of young australians believe their education did not prepare them for what to expect from working life.

Correct capitalization: The sentiment has been long echoed by reports from technology companies with a presence in Australia, such as IT outsourcing company Infosys, which reported last year that 50 percent of young Australians believe their education did not prepare them for what to expect from working life.

Problem: colonel lawrence loved semites, for he had lived with the arabs and roused them in the desert against their turkish rulers.
Can you repeat this sentence, but capitalize it?
Answer:
Colonel Lawrence loved Semites, for he had lived with the Arabs and roused them in the desert against their Turkish rulers.