Topics: Rural Sociology, Sociology Theories, Rural Agrarian Society, Social Change, Attitude Change, Resistance to Change, Group Structure, Rural Settlement, Urban Settlement, Rural Poverty

Topics: Chemical Thermodynamics, Energy, Thermochemistry, Spontaneous changes, Entropy, Equilibrium experiments, Electrochemical cells, Free energy, industrial processes, Computational thermochemistry

Topics: Chemical Thermodynamics, mechanical systems equilibrium, perfect gas, energy, work, heat, temperature, temperature measurement, molecular motion, energy conservation, enthalpy, heat capacity, entropy, equilibrium, free energy, Gibbs free energy, phase equilibria, Clapeyron equation, Clausius-Clapeyron equation, chemical potential, Le Chatelier's principle, Hess's law, free-energy changes determination, Ellingham diagram, free-energy functions, ideal solution, ideal dilute solution, freezing-point depression, osmotic pressure, solid solubility, electrochemical cells, standard electrode potentials, irreversible expansion, Joule-Thomson experiment, imperfect gases, energy levels, Boltzmann factor, rotational partition function, vibrational partition function, chemical equilibrium

Topics: soil properties, soil management, tropical environment, temperature, solar radiation, rainfall, tropical climates, vegetation, physiography, Anthropocene, biodiversity, climate change, demographics, Green Revolutions, Tropical Agroecosystems, land use, land-use change, Pedology, Physics, Chemistry, Biology, Laterite Paradigm, tropical soils, tropical soil research, Soil Taxonomy, soil classification systems, soil physical properties, soil temperature, soil structure, soil compaction, soil water, soil erosion, conservation, conservation agriculture, water, rainfed agriculture, irrigated agriculture, irrigation, mineralogy, clay minerals, mineralogy families, Anion Exchange Capacity, soil acidity capacity, Acid Soil Infertility, Liming, overliming, subsoil acidity, secondary acidity, soil biology, soil biodiversity, comminution, decomposition, nutrient elements transformation, soil structure regulation, organic carbon, carbon pools, carbon fractions, animal manures, composts, biochars, organic farming, soil fertility, nutrient cycling, nutrient uptake, determining fertilizer needs, nitrogen cycle, nitrogen pools, atmospheric deposition, biological nitrogen fixation, mineral fertilizers, organic nitrogen mineralization, soil nitrogen fertilizer reactions, Phosphorus Cycle, Phosphorus, Total Soil Phosphorus, inorganic Phosphorus, Phosphorus sorption, Phosphorus release, plant Phosphorus requirements, Phosphorus fertilization, sulfur cycle, sulfur sorption, Sulphur fertilization, Forest–Soil Nutrient Cycles, land clearing, Mechanized Land Clearing, Crop Yield Declines, Field Abandonment, Secondary Forest Fallows, puddling, flooding, rice cultivation systems, Nutrient Management, Yield Stagnation, Nitrogen Sequestration, Livestock-Based Tropical Systems, tropical pastures, Tropical Livestock Management Systems, pastoralism, Smallholder Mixed Crop–Livestock Systems, Extensive Pasture-Based Beef Production, Pasture Degradation, Crop–Pasture Integration, Tropical Tree-Based Systems, Plantation Forestry, Plantation Forestry Species, Agroforestry, Agroforestry Tree Species, Agroforestry Systems, Simultaneous Agroforestry, Sequential Agroforestry, tree crops

Topics: Fluid Mechanics, Fluid-Flow Phenomena, Equations of Fluid Flow, Flow of Incompressible Fluids, Flow of Compressible Fluids, Flow past immersed bodies, Transportation of fluids, Metering of fluids, Agitation of liquids, mixing of liquids, Heat transfer, heat flow in fluids, Heat transfer to fluids without phase change, Heat transfer to fluids with phase change, Radiation heat transfer, Heat exchange equipment, Evaporation, Equilibrium stage operations, Distillation, multicomponent distillation, Leaching, Extraction, Diffusion, Mass Transfer between Phases, Gas Absorption, Humidification Operations, Drying of Solids, Adsorption, Membrane Separation Processes, Crystallization, Properties of Particulate Solids, Handling of Particulate Solids, Mixing of Particulate Solids, Mechanical Separations

Topics: Thermodynamics, steady-flow equation, working fluid, reversible process, polytropic process, heat engine, entropy, exergy, heat engine cycle, carnot cycle absolute temperature scale, constant pressure cycle, air standard cycle. Otto cycle, diesel cycle, dual combustion cycle, combustion, fuels, combustion equations, enthalpy, power plant thermal efficiency, steam cycles, rankine cycle, gas turbine cycles, nozzles, jet propulsion, rotodynamic machinery, reciprocating internal-combustion engines, engine output, engine efficiency, supercharging, refrigeration, heat pumps, reversed heat engine cycles, vapour-compression cycles, gas cycles, psychrometry, air-conditioning, heat transfer, conduction equation, conduction, convection, heat exchangers, black-body radiation, combined cycles

Topics: Engineering Thermodynamics, First Law of Thermodynamics, Control Volume Analysis, Second Law of Thermodynamics, Exergy Analysis, entropy, vapor power systems, gas power systems, Refrigeration, Heat Pump Systems, Thermodynamic Relations, Ideal Gas Mixture, Reacting Mixtures, Combustion, Chemical Equilibrium, Phase Equilibrium, energy storage, Generalized Compressibility Chart.ideal gas model, Polytropic Process Relations.nozzle, diffuser, turbine, compressor, pump, heat exchanger, throttling devices, transient analysis, mass rate balance

Topics: Engineering Thermodynamics, First Law of Thermodynamics, Control Volume Analysis, Second Law of Thermodynamics, Exergy Analysis, entropy, vapor power systems, gas power systems, Refrigeration, Heat Pump Systems, Thermodynamic Relations, Ideal Gas Mixture, Reacting Mixtures, Combustion, Chemical Equilibrium, Phase Equilibrium, energy storage, Generalized Compressibility Chart.ideal gas model, Polytropic Process Relations.nozzle, diffuser, turbine, compressor, pump, heat exchanger, throttling devices, transient analysis, mass rate balance

Topics: Calculus, Analytic Geometry, real numbers, real line, coordinates, functions, shifting graphs, trignometric functions, rates of change, limits, continuity, tangent lines, derivative of a function, differentiation rules, rates of change, chain rule, derivatives, implicit differentiation, rational exponents, extreme values of functions, mean value theorem, first derivative test, optimization, linearization, differentials, Newton's method, integration, indefinite integrals, differential equations, initial value problems, mathematical modelling, Riemann sums, definite integrals, mean value theorem, fundamental theorem, numerical integration, cylindrical shells, application of integrals, work, fluid pressure, inverse functions, natural logarithms, transcendental functions, L'Hopital's rule, inverse trignometric functions, hyperbolic functions, first order differential equations, Euler's numerical method, Integration formulas, integration by parts, integral tables, infinite series, power series, Maclaurin series, Taylor series, conic sections

Topics: Gas laws, Gas, Boyle's law, Charles law, Gay-Lussac's law, Dalton's law, general gas equation, ideal gas, Avogardo's law, kinetic theory, Boltzmann distribution, intermolecular distribution, Vander Waal's equation, viscosity, dilute solution, molarity, mole fraction, colligative properties, osmotic pressure, thermodynamics, internal energy, heat change, heat capacity, isothermal process, phase change, adiabatic process, adiabatic reversible expansion, thermodynamic equilibrium, chemical equilibrium, thermochemistry, heat of reaction, heat of formation, heat of combustion, bond energy, chemical equilibrium, dynamic equilibrium, law of mass action, solubility, chemical kinetics, chemical reaction, reaction rate, rate laws, differential rate laws, integrated rate laws, activation energy, action complex, activated complex, ionic equilibrium, electrolytes, acid, bases, Bronsted-Lowry theory, Lewis theory, dissociation constant, hydrolysis, buffer solution, buffer capacity, crystals, crystalline phases, polymorphism, amorphous, crystal growth, nucleation, crystal systems, cubic structures, mirror symmetry