Academic Literature Synthesizer

Act as a research assistant. I have notes and findings from several academic papers. Please synthesize them into a structured literature review matrix.

Here are the notes:
[PAPER 1: Author, Year, Key Findings, Method]
[PAPER 2: Author, Year, Key Findings, Method]
[PAPER 3: Author, Year, Key Findings, Method]

Please analyze these papers and provide:
1. Synthesis Matrix: A markdown table containing Columns: Concept/Theme, Paper 1 Support, Paper 2 Support, Paper 3 Support, and Common Synthesis.
2. Key Areas of Agreement: Summary of where these papers align.
3. Key Areas of Contradiction / Disagreement: Divergent methodologies or conclusions.
4. Research Gaps: Identify questions left unanswered by these papers collectively.