Related by context. Frequent words. (Click for all words.) 52 melittin 52 angular momentum 50 MeV 50 alpha particle 50 alpha particles 50 GeV 49 subatomic particle 49 electrically conducting 49 proton 49 ribozyme 49 hydrogen atom 49 protostar 49 histidine 49 muon 49 nuclei 49 ionize 48 z axis 48 porphyrin 48 helium atoms 48 γ 48 atomic nuclei 48 oxygen atom 48 quantum bits 48 toroidal 48 antiprotons 47 epididymis 47 biomolecule 47 carbon atom 47 electrochemical reaction 47 exciton 47 phospholipid 47 ionised 47 angstroms 47 red supergiant 47 silicon atoms 47 radial velocity 47 neutrons 47 decoherence 47 millivolts 47 transduction 47 ADAM# 47 outer membrane 46 electron spins 46 organelle 46 reactants 46 accretion disk 46 optical biosensors 46 hydrogen ions 46 tubules 46 Gamma rays 46 atomic nucleus 45 plasmon 45 cell cytoplasm 45 analyte 45 collimator 45 nitrogen atoms 45 quadrupole 45 radially 45 positrons 45 orbitals 45 polypeptide 45 quanta 45 adenosine triphosphate ATP 45 myosin 45 protoplanetary disk 45 photon 45 ionized gas 45 isotropic 45 riboswitch 45 spacetime 45 quantum gravity 45 nanometers nm 45 cytosolic 44 subatomic 44 cubic millimeter 44 Earth magnetosphere 44 microliter 44 #μm [002] 44 transmembrane 44 cytosol 44 metastable 44 magnetic flux 44 nanobubbles 44 bosons 44 interferometric 44 bilayer 44 sodium ions 44 calorimeter 44 smoker inhales 44 gaseous hydrogen 44 electron 44 stimulated emission 44 collimated 44 circular orbits 44 shorter wavelengths 44 molecular motors 44 RNA molecule 44 electron density 44 spintronic 44 hydrogen atoms 44 microliters