Topics: Trans-Saharan trade, Trans-Atlantic Slave Trade, Captain Antam Goncalvez, Prince Henry, Sources of Slaves

Topics: photoelectricity

Topics: birth control, Hormonal contraception, Billings method, rhythm method, Intrauterine devices, Emergency contraception, Levonorgestrel, ulipristal acetate

Topics: Contemporary Public Relations, Public Relations, Communication Theories, Internal Relations, Employee Communication, External Media, Media Relations, Public Relations Problems, planning, programming, Military Public Affairs, Nonprofit Organizations, Nongovernmental Organizations, health care, education

Topics: Electronics, Power Electronics, Optoelectronics, Microwaves, Electromagnetics, Radar, semiconductors, diodes, semiconductor manufacturing, Microlithography, transistors, Junction Field-Effect Transistors, Bipolar Transistors, Metal-Oxide Semiconductor Field-Effect Transistor, Single Electron Transistors, integrated circuits, integrated circuit technology, Surface Mount Technology, amplifier, signal analysis, active filters, power electronics, Power Semiconductor Devices, power conversion, Lasers, Electromagnetic Fields, magnetism, magnetic fields, magnetic recording, wave propagation, space propagation, wave guides, antennas, Fresnel Zone Plate Antenna, Microwave Devices, Lightning, pulse radar, continuous radar, Electroacoustic Transducers, Ferroelectric Materials, Piezoelectric Materials, Electrostriction, hall effect, superconductivity, dielectric, insulators

Topics: Abductor Hallucis, Flexor Digitorum Brevis, Abductor Digiti Minimi, quadratus plantae muscle, Lumbrical muscles, Flexor Hallucis Brevis, Flexor Digiti Minimi Brevis, Plantar Interossei, Dorsal Interossei, Medial Plantar Nerve Entrapment, Extensor Digitorum Brevis

Topics: Business Communication Skills, Business Communication, Effective Communicator, Effective Communication, Personality Development, reading skills, speaking skills, conversation skills, listening skills, non-verbal skills, writing skills, Organizational Communication, Cross-cultural Communication, Business Letters, Memos, E-mails, Effective Presentations, social media, Business Reports, Business Etiquette, Effective Negotiations, Conflict Management

Topics: Pharmacokinetics, Pharmacodynamics, Life Cycle of a Drug, Slow Absorption, Faster Absorption, Bioavailability, Depot Binding, Degradation, Excretion, Drug Effectiveness, Dose-response curve, Therapeutic Index, Effective dose, Lethal dose, Effective concentration, Drug Efficacy, Drug potency, Drug-drug Interactions, Cumulative Effects, Additive Effects, Synergistic Effects, Antagonistic Effects, Agonism, Antagonism, drug-receptor interaction

Topics: Semiconductor, solids, crystal structure, lattice dynamics, semiconductor statistics, Energy Band Theory, Bloch–Floquet Theorem, Kronig–Penney Model, Band-to-Band Radiative Recombination, Band-to-Band Auger Recombination, Charge-Neutrality Equation, Haynes–Shockley Experiment, Photoconductivity Decay Experiment, Impurity Scattering, Phonon Scattering, p-n Junction Diodes, photoelectric effects, solar cells, photodetectors, light-emitting devices, Bipolar Junction Transistors, Metal-Oxide-Semiconductor Field-Effect Transistors, Metal–Semiconductor Field-Effect Transistors, High Electron Mobility Transistors, Hot-Electron Transistors, Resonant Tunneling Devices, Transferred-Electron Devices, Advanced Bipolar Junction Transistors, Heterojunction Bipolar Transistors, thyristors, Zener Breakdowns, Avalanche Breakdowns, tunnel diodes, Thermionic Emission Theory, Metal Work Function, Schottky Effect, ideal Schottky contact

Topics: Dielectrics, capacitor, conductor, resistivity, resistance, Wheatstone bridge, Lenz's law, Hall effect