All ajarns and students who hope to publish research on open access websites must be aware that some of these are predatory publishers.
Self-plagiarism is an awkward term which can mean different things depending on who you are.
General pointers on academic writing.
There is no mystery or secret about how to write well in English. You just have to read a lot in English.
Writing the Discussion.
The discussion section of your thesis or article describes what you have done, compared to the rest of the work in your field.
In a thesis or academic article, presenting results is essential, to tell readers what you achieved.