Formal & Physical Sciences ChemistryENAldol CondensationAndrey KJune 27, 2014 11 min★ ★ ★ ★ ☆ 4/5Aldol CondensationOrganic ChemistryReaction Mechanism
Formal & Physical Sciences ChemistryENAlpha Hydrogens of Carbonyl CompoundsAndrey KJune 26, 2014 13 min★ ★ ★ ★ ☆ 4/5Alpha HydrogenCarbonyl CompoundsEnolate
Formal & Physical Sciences ChemistryENImine and Enamine FormationAndrey KJune 24, 2014 15 min★ ★ ★ ★ ☆ 4/5ImineEnamineReaction Mechanism
Formal & Physical Sciences Science — General & HistoryENThe Inner Workings of an Enigma MachinePerimeter Institute for Theoretical PhysicsJune 23, 2014 14 min★ ★ ★ ★ ☆ 4/5Enigma MachineCryptographyHistory of Computing
Humanities, Social Sciences & Thought Economics & FinanceENPaying Dividends: How Federally Funded Biomedical Research Fuels the Pharmaceutical IndustryMarc Tessier-LavigneJune 23, 2014 60 min★ ★ ★ ★ ☆ 4/5NIH FundingPharmaceutical IndustryBiomedical Research
Formal & Physical Sciences ChemistryENEquilibrium of Carbonyl Addition ReactionsAndrey KJune 20, 2014 10 min★ ★ ★ ★ ☆ 4/5CarbonylNucleophilic AdditionEquilibrium
Formal & Physical Sciences ChemistryENSynthesis Reactions with Benzene (2)Andrey KJune 18, 2014 14 min★ ★ ★ ★ ☆ 4/5BenzeneSynthesisOrganic Chemistry
Formal & Physical Sciences ChemistryENNucleophilic Addition to Benzene ExampleAndrey KJune 18, 2014 13 min★ ★ ★ ★ ☆ 4/5Organic ChemistryNucleophilic AdditionBenzene
Formal & Physical Sciences ChemistryENOrtho, Meta and Para SubstitutionAndrey KJune 17, 2014 12 min★ ★ ★ ★ ☆ 4/5Electrophilic Aromatic SubstitutionOrtho Meta ParaBenzene
Formal & Physical Sciences ChemistryENMeta Substitution ExampleAndrey KJune 17, 2014 10 min★ ★ ★ ★ ☆ 4/5Organic ChemistryElectrophilic Aromatic SubstitutionResonance
Formal & Physical Sciences ChemistryENInductive Effects in Electrophilic SubstitutionAndrey KJune 17, 2014 10 min★ ★ ★ ★ ☆ 4/5Inductive EffectElectrophilic Aromatic SubstitutionCarbocation Stability
Formal & Physical Sciences ChemistryENFriedel-Crafts Alkylation ExampleAndrey KJune 14, 2014 10 min★ ★ ★ ★ ☆ 4/5Friedel-CraftsAlkylationReaction Mechanism
Formal & Physical Sciences ChemistryENFriedel-Crafts AlkylationAndrey KJune 14, 2014 12 min★ ★ ★ ★ ☆ 4/5Friedel-CraftsAlkylationReaction Mechanism
Formal & Physical Sciences ChemistryENBasicity of Pyrrole and PyridineAndrey KJune 12, 2014 10 min★ ★ ★ ★ ☆ 4/5PyrrolePyridineBasicity
Formal & Physical Sciences ChemistryENFrost Circle MethodAndrey KJune 11, 2014 11 min★ ★ ★ ★ ☆ 4/5Frost CircleAromaticityMolecular Orbitals
Formal & Physical Sciences ChemistryENAromatic Molecules ExamplesAndrey KJune 11, 2014 10 min★ ★ ★ ★ ☆ 4/5AromaticityHückel's RuleOrganic Chemistry
Formal & Physical Sciences ChemistryENMolecular Orbitals of BenzeneAndrey KJune 10, 2014 14 min★ ★ ★ ★ ☆ 4/5Molecular OrbitalsBenzenePi System
Formal & Physical Sciences ChemistryENAromaticity and Huckel's RuleAndrey KJune 10, 2014 12 min★ ★ ★ ★ ☆ 4/5AromaticityHückel's RuleOrganic Chemistry
Formal & Physical Sciences ChemistryENDiels-Alder ReactionAndrey KJune 7, 2014 10 min★ ★ ★ ★ ☆ 4/5Diels-AlderOrganic ChemistryConcerted Mechanism
Formal & Physical Sciences ChemistryENAllyl CompoundsAndrey KJune 6, 2014 10 min★ ★ ★ ★ ☆ 4/5Allyl CompoundsResonanceSN1
Formal & Physical Sciences ChemistryENConjugated Molecular Orbitals of 1,3 ButadieneAndrey KJune 5, 2014 12 min★ ★ ★ ★ ☆ 4/5Molecular OrbitalsConjugationButadiene
Formal & Physical Sciences ChemistryENConjugated BondsAndrey KJune 4, 2014 10 min★ ★ ★ ★ ☆ 4/5Conjugated BondsOrganic ChemistryResonance
Formal & Physical Sciences ChemistryEN1,2-Dienes (Allenes)Andrey KJune 3, 2014 11 min★ ★ ★ ★ ☆ 4/5Allene1,2-DieneOrganic Chemistry
Formal & Physical Sciences ChemistryENSpin-Spin CouplingAndrey KMay 16, 2014 11 min★ ★ ★ ★ ☆ 4/5NMRSpin-Spin CouplingOrganic Chemistry
Formal & Physical Sciences ChemistryENElectron Shielding GroupsAndrey KMay 11, 2014 10 min★ ★ ★ ★ ☆ 4/5NMR SpectroscopyElectron ShieldingAlkanes
Formal & Physical Sciences ChemistryENChemical Shift and Shielding EffectAndrey KMay 10, 2014 11 min★ ★ ★ ★ ☆ 4/5NMR SpectroscopyChemical ShiftShielding
Formal & Physical Sciences ChemistryENProton NMR SpectroscopyAndrey KMay 9, 2014 14 min★ ★ ★ ★ ☆ 4/5NMRProton NMRSpectroscopy
Formal & Physical Sciences ChemistryENMass and Infrared Spectrum ExampleAndrey KMay 9, 2014 12 min★ ★ ★ ★ ☆ 4/5Mass SpectrometryInfrared SpectroscopyEmpirical Formula
Life & Natural Systems Medicine & HealthENHIV/AIDS in 2014: Progress and PrioritiesAnthony FauciMay 9, 2014 55 min★ ★ ★ ★ ★ 5/5HIVAIDSPublic Health
Formal & Physical Sciences ChemistryENInfrared SpectroscopyAndrey KMay 8, 2014 14 min★ ★ ★ ★ ☆ 4/5Infrared SpectroscopyAnalytical ChemistryMolecular Vibrations
Formal & Physical Sciences ChemistryENThin Layer Chromatography and Retention FactorAndrey KMay 7, 2014 10 min★ ★ ★ ★ ☆ 4/5ChromatographyTLCRetention Factor
Formal & Physical Sciences PhysicsENStandard Model, Electroweak Theory and Higgs Boson ParticleAndrey KMay 4, 2014 11 min★ ★ ★ ★ ☆ 4/5Standard ModelElectroweak TheoryHiggs Boson
Formal & Physical Sciences PhysicsENColor Force and Quark ConfinementAndrey KMay 3, 2014 10 min★ ★ ★ ★ ☆ 4/5Quantum ChromodynamicsQuarksGluons
Formal & Physical Sciences PhysicsENLaws of Conservation Lepton and Baryon NumberAndrey KApril 30, 2014 10 min★ ★ ★ ★ ☆ 4/5Particle PhysicsConservation LawsBaryon Number
Formal & Physical Sciences PhysicsENFeynman DiagramAndrey KApril 30, 2014 11 min★ ★ ★ ★ ☆ 4/5Feynman DiagramQuantum ElectrodynamicsVirtual Photon
Formal & Physical Sciences PhysicsENAntiparticles and AntimatterAndrey KApril 30, 2014 11 min★ ★ ★ ★ ☆ 4/5AntiparticlesAntimatterDirac Equation
Formal & Physical Sciences PhysicsENTypes of Particle AcceleratorsAndrey KApril 29, 2014 11 min★ ★ ★ ★ ☆ 4/5Particle AcceleratorCyclotronSynchrotron
Formal & Physical Sciences Medicine & HealthENMagnetic Resonance Imaging (MRI)Andrey KApril 28, 2014 15 min★ ★ ★ ★ ☆ 4/5MRINuclear Magnetic ResonancePhysics
Formal & Physical Sciences ChemistryENNuclear Magnetic Resonance (NMR)Andrey KApril 27, 2014 15 min★ ★ ★ ★ ☆ 4/5NMRNuclear Magnetic ResonanceLarmor Frequency
Formal & Physical Sciences PhysicsENDosimetry and Measuring RadiationAndrey KApril 26, 2014 10 min★ ★ ★ ★ ☆ 4/5DosimetryRadiationAbsorbed Dose