Evolutionary Psychology (behavior and mental processes are influenced by evolutionary factors)
Biological Psychology (behavior is influenced by biological processes and structures)
Social Psychology (behavior is influenced by social and cultural factors)
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Biology
Evolutionary theory (explains how species change and adapt over time through natural selection)
Cell theory (states that all living organisms are composed of cells, which are the basic unit of life)
Genetics (studies how traits are inherited and passed down from generation to generation)
Ecology (studies the relationships between living organisms and their environment)
Physiology (focuses on the functions and processes of living organisms and their parts)
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Economics
Supply and Demand (The theory that the price and quantity of a good or service is determined by the interaction of buyers and sellers in a market.)
Keynesian Economics (The theory that government intervention is necessary to stabilize the economy during times of recession.)
Monetarism (The theory that the money supply is the main driver of economic growth and that controlling it is crucial for economic stability.)
Rational Choice Theory (The theory that individuals make rational decisions based on the information and choices available to them.)
Behavioral Economics (The theory that individuals often make decisions that are not rational and are influenced by psychological factors.)
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Physics
Theory of General Relativity (describes the laws of gravity and the structure of the universe)
Quantum Mechanics (explains the behavior of matter and energy on a small scale)
Newton's Laws of Motion (describe how objects move and interact with each other)
Thermodynamics (explains the relationship between heat, energy, and work)
Electromagnetism (describes the behavior of electrically charged particles and their interactions with magnetic fields)
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Evolution
Darwin's Theory of Evolution (organisms evolve over time through natural selection)
Lamarck's Theory of Evolution (organisms can pass on traits acquired during their lifetime to their offspring)
Wallace's Theory of Natural Selection (similar to Darwin's theory, but with a focus on geographic isolation and the role of chance)
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Philosophy
Moral relativism (The belief that moral truths are relative to a particular culture or society)
Utilitarianism (The belief that the best action is the one that maximizes overall happiness or pleasure)
Existentialism (The belief that existence precedes essence, and individuals create meaning in their lives through their choices and actions)
Stoicism (The belief that individuals should focus on what is within their control and accept what is not)
Feminist theory (The belief that gender inequality is a result of societal structures and norms, and that activism is necessary to achieve gender equality)
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Metaphysics
Substance theory (Objects are made up of substances that have inherent properties)
Idealism (Reality is ultimately mental or spiritual in nature)
Dualism (Reality is composed of two fundamentally different substances, typically mind and matter)
Materialism (All that exists is physical matter and its properties)
Nominalism (Universals do not actually exist, only particular things do)
Ontology (The study of being and existence)
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Sociology
Structural functionalism (views society as a complex system with interdependent parts that work together to promote stability and order)
Conflict theory (emphasizes the role of power and coercion in social order and highlights the inequalities that exist in society)
Symbolic interactionism (focuses on how individuals interact and create meaning through shared symbols and language)
Feminist theory (examines the ways in which gender inequality affects social structures and relationships)
Rational choice theory (posits that individuals make decisions based on maximizing their own self-interest)
Postmodernism (challenges traditional ideas of truth and knowledge, emphasizing the subjective nature of reality)
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Chemistry
Atomic Theory (all matter is made up of tiny, indivisible particles called atoms)
Organic Chemistry (study of carbon-based compounds and their properties)
Thermodynamics (study of energy transfer and its effects on chemical reactions)
Electrochemistry (study of the relationship between electricity and chemical reactions)
Quantum Mechanics (study of the behavior of matter and energy at the atomic and subatomic level)
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Complex Systems
Chaos Theory (the study of nonlinear, dynamic systems that exhibit unpredictable behavior)
Complexity Theory (the study of how systems with many interacting components can self-organize and exhibit emergent properties)
Network Theory (the study of complex systems as interconnected networks of nodes and edges)
Game Theory (the study of decision-making in situations where the outcome depends on the choices of multiple agents)
Information Theory (the study of how information is transmitted and processed in complex systems)
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Neuroscience
Neural Darwinism (also known as the theory of neuronal group selection) - proposes that the brain is organized into functional modules that compete for survival and dominance during development and learning (similar to natural selection in evolution).
Hebbian theory - suggests that synaptic connections between neurons are strengthened when they fire together, which is thought to underlie learning and memory.
Plasticity theory - posits that the brain is capable of changing its structure and function in response to experiences and environmental factors, including injury and disease.
Predictive coding - proposes that the brain generates predictions about incoming sensory information and updates these predictions based on feedback from the environment, which is thought to be a fundamental principle of perception and cognition.
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Learning
Behaviorism (focuses on observable behaviors and the environmental factors that influence them)
Constructivism (emphasizes the active role of the learner in constructing their own understanding of the world)
Cognitive load theory (examines how the limits of working memory affect learning and suggests ways to optimize learning by managing cognitive load)
Social learning theory (proposes that learning occurs through observation and imitation of others)
Multiple intelligences theory (challenges the notion of a single, general intelligence and suggests that individuals have different strengths and ways of learning)
Connectivism (posits that learning is a process of making connections between different sources of information and creating a network of knowledge)
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Mathematics
Set Theory (a branch of mathematical logic that studies sets, which informally are collections of objects.)
Number Theory (the study of the properties of numbers in general, and integers in particular.)
Calculus (the mathematical study of continuous change.)
Linear Algebra (the branch of mathematics concerning linear equations such as linear maps.)
Geometry (the study of shapes, sizes, relative positions of objects, and the properties of space.)
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Politics
Pluralism (Multiple groups compete for power)
Elite Theory (Power is held by a small, wealthy group)
Marxism (Class struggle drives political change)
Liberalism (Individual rights and freedoms are paramount)
Conservatism (Protecting traditional values and institutions)
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Engineering
Systems theory (views a system as a set of interrelated components working together to achieve a common goal)
Control theory (deals with the analysis and design of control systems)
Information theory (deals with the quantification, storage, and communication of information)
Signal processing theory (deals with the analysis and manipulation of signals)
Probability theory (deals with the analysis of random phenomena and events)
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Operations Research
Linear Programming Theory (maximizing or minimizing a linear objective function subject to linear inequality and equality constraints)
Queueing Theory (analyzing and optimizing waiting lines)
Decision Analysis Theory (making decisions under uncertainty and risk)
Simulation Theory (using models to imitate real-world systems and study their behavior)
Integer Programming Theory (solving optimization problems where variables can only take integer values)
Network Theory (analyzing complex systems of interconnected components)
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Linguistics
Structuralism (focuses on the underlying structures of language)
Generative Grammar (proposes that humans have an innate ability to learn and produce language)
Cognitive Linguistics (studies the relationship between language and thought)
Sociolinguistics (examines the social factors that influence language use)
Psycholinguistics (investigates how humans acquire, use, and understand language)
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Anthropology
Cultural evolutionism (suggested that cultures evolve in a similar way to biological organisms)
Functionalism (emphasizes the importance of social institutions and practices in maintaining social order)
Structuralism (focuses on underlying structures and patterns in cultures)
Symbolic anthropology (emphasizes the importance of symbols and meaning in culture)
Cultural ecology (studies the relationship between human cultures and their environments)
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Pedagogy
Behaviorism (learning is a result of stimulus-response associations)
Constructivism (learning is an active process of constructing knowledge)
Cognitivism (learning is a mental process that involves acquiring, processing, and organizing information)
Humanism (learning is a personal and holistic experience that emphasizes individual growth and self-actualization)
Connectivism (learning is a networked process that involves connecting and sharing information and ideas through technology)
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Political Science
Rational choice theory (individuals make decisions based on rational calculations of costs and benefits)
Institutionalism (political institutions shape behavior and outcomes)
Pluralism (power is distributed among many groups and individuals, rather than concentrated in a few)
Elite theory (power is held by a small, privileged group)
Marxism (political power is based on control of the means of production)