Design a comprehensive ethical framework for AI systems that make decisions affecting human lives, such as medical diagnosis, loan approval, or criminal justice recommendations. Your framework should include: 1) Core ethical principles that should guide AI decision-making, 2) Methods for implementing these principles in technical systems, 3) Approaches to transparency and explainability for different stakeholder needs, 4) Processes for identifying and mitigating bias in both training data and algorithms, 5) Governance structures for ongoing ethical review and adjustment. Address how to balance competing ethical principles when they conflict, how to adapt the framework across different cultural contexts, and how to incorporate public input into the development of ethical standards for AI.