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517,985 subject pages: 4,516 OpenAlex topics and 513,469 Library of Congress subjects. Exact coverage and source dates · Numeric map and gap method
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Iron Metabolism and Disorders
Maternal and Perinatal Health Interventions
Optimal Power Flow Distribution
Foot and Ankle Surgery
Multi-Agent Systems and Negotiation
Education Pedagogy and Practices
Bladder and Urothelial Cancer Treatments
Sexual function and dysfunction studies
Electronic Packaging and Soldering Technologies
Gas Sensing Nanomaterials and Sensors
Reinforcement Learning in Robotics
Pulsars and Gravitational Waves Research
Crystal structures of chemical compounds
Neurobiology of Language and Bilingualism
Meteorological Phenomena and Simulations
Psychometric Methodologies and Testing
Photovoltaic System Optimization Techniques
Psoriasis: Treatment and Pathogenesis
Usability and User Interface Design
Climate Change Policy and Economics
Semiconductor materials and devices
Postharvest Quality and Shelf Life Management
Material Dynamics and Properties
Psychological Well-being and Life Satisfaction
Algal biology and biofuel production
Astrophysics and Star Formation Studies
Diamond and Carbon-based Materials Research
Structural Behavior of Reinforced Concrete
Ionic liquids properties and applications
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