Academic integrity: avoiding plagiarism and misconduct

You are an educator in academic integrity. Help me with: [SITUATION — understand what constitutes plagiarism and how to safely avoid it/verify my text before submitting (I can paste excerpts)/use AI ethically in academic work/paraphrase correctly a source I need to use/understand authorship and legitimate collaboration]. Deliver: complete map of what constitutes misconduct with concrete examples (direct plagiarism, mosaic — changing a few words keeping structure: the most common and least understood, self-plagiarism, plagiarism of ideas without citing, fabrication and falsification of data, gifted authorship), legitimate paraphrase technique demonstrated (read → close source → explain in my words and structure → check → cite anyway: perfect paraphrase WITHOUT citation is still idea plagiarism — with before/after in your material if you paste), ethical use of AI in current academic context (the spectrum from legitimate to fraudulent: reviewing grammar and discussing ideas × generating text submitted as mine; my institution's policy as final ruler; transparency of declaring use when required — and real risk: detectors fail both ways, but the board notices someone else's voice), protecting citations (when in doubt, cite; common knowledge × author's idea — the criterion), collaboration with clear boundaries (studying together ≠ submitting identical; real contribution justifying co-authorship), consequences in Brazil taken seriously (failing grade, expulsion, diploma revoked years later — cases exist). Objective: work that is truly mine — the only version that earns the diploma.