bipolar transistors   85.30.Pq  
bipolarons   71.38.Mx  
birefringence   42.25.Lc  
birefringence   78.20.Fm  
birefringence, polarization   42.81.Gs  
bistability, multistability, and switching (see also 42.60.Gd Q-switching; 42.79.Ta optical computers, logic elements, interconnects, switches; neural networks) # optical    42.65.Pc  
Bj oscillations, chaos, and bifurcations in physical chemistry and chemical physics) # nonequilibrium and irreversible thermodynamics (see also 82.40.   05.70.Ln  
BL Lacertae objects, blazars, Seyfert galaxies, Markarian galaxies, and active galactic nuclei) # active and peculiar galaxies and related systems (including    98.54.Cm  
black hole and distance measurements) # galactic center, bar, circumnuclear matter, and bulge (including    98.35.Jk  
black holes   97.60.Lf  
black holes # classical    04.70.Bw  
black holes # physics of    04.70.-s  
black holes) # late stages of stellar evolution (including    97.60.-s  
black holes), circumnuclear matter, and bulges # galactic nuclei (including    98.62.Js  
black holes, evaporation, thermodynamics # quantum aspects of    04.70.Dy  
blazars, Seyfert galaxies, Markarian galaxies, and active galactic nuclei) # active and peculiar galaxies and related systems (including BL Lacertae objects,    98.54.Cm  
blending # mixing and    83.50.Xa  
blends # polymer    83.80.Tc  
block copolymers   83.80.Uv  
blockade; single-electron tunneling # Coulomb    73.23.Hk  
blocking, energy loss, etc.) # channeling phenomena (   61.85.+p  
Blodgett films on liquids # Langmuir -    68.18.-g  
Blodgett films on solids, polymers on surfaces, biological molecules on surfaces # Langmuir -    68.47.Pe  
blood, collagen, etc.) # physiological materials (e.g.    83.80.Lz  
blooming # beam trapping, self-focusing, and thermal    42.65.Jx  
blue phases and other defect-phases   61.30.Mp  
blue stars (including blue stragglers), white dwarfs, degenerate stars, nuclei of planetary nebulae # faint    97.20.Rp  
blue stragglers), white dwarfs, degenerate stars, nuclei of planetary nebulae # faint blue stars (including    97.20.Rp  
blue variables (alpha Cygni, beta Cephei, delta Scuti, delta Delphini, delta Canis Majoris, SX Phoenicius, etc.) # low-amplitude    97.30.Dg  
Blue Variables, Wolf - Rayet, etc.) # emission-line stars (Of, Be, Luminous    97.30.Eh  
bodies # dynamics and kinematics of rigid    45.40.-f  
body and gyroscope motion # rigid    45.40.Cc  
body fluids # rheology of    87.19.Tt  
body waves # surface and    91.30.Fn  
Bok globules, bipolar outflows, cometary nebulae, etc.) # pre-main sequence objects, young stellar objects (YSO's) and protostars (T Tauri stars, Orion population, Herbig-Haro objects,    97.21.+a  
bolometers # photoconductors and    95.55.Rg  
bolometers; infrared, submillimeter wave, microwave, and radiowave receivers and detectors   07.57.Kp  
bond calculations # valence    31.15.Rh  
bond strengths, dissociation energies   33.15.Fm  
bonding # structure and    87.15.By  
bonding, hydrophilic effects # hydrogen    82.30.Rs  
bonds, dimensions) # configuration (   36.20.Hb  
bone densitometry   87.58.Xs  
bone densitometry   87.59.Ls  
book reviews   01.30.Vv  
Borealis variables, etc.) # flare stars (UV Ceti, RS Canum Venaticorum, FU Orionis, R Coronae    97.30.Nr  
borides, carbides, chalcogenides, etc. # elements, oxides, nitrides,    77.84.Bw  
borides, carbides, hydrides, nitrides, oxides, and silicides) # ceramics and refractories (including    81.05.Je  
Bose effects, phase space filling, and excitonic phase transitions) # collective effects (   71.35.Lk  
boson degeneracy and superfluidity of 4He   67.40.-w  
boson systems   05.30.Jp  
bosons # decays of intermediate    13.38.-b  
bosons # decays of W    13.38.Be  
bosons # decays of Z    13.38.Dg  
bosons # gauge    14.70.-e  
bosons # non-standard-model Higgs    14.80.Cp  
bosons # other gauge    14.70.Pw  
bosons # standard-model Higgs    14.80.Bn  
bosons # W    14.70.Fm  
bosons # Z    14.70.Hp  
bosons (majorons, familons, etc.) # axions and other Nambu - Goldstone    14.80.Mz  
both 25.75.-q and the 13. or 25. category appropriate to the light ions) # relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy ion collisions, should be classified under    25.75.-q  
bottom baryons   14.20.Mr  
bottom mesons   14.40.Nd  
bottom mesons # decays of    13.20.He  
bottom mesons # decays of    13.25.Hw  
bottom processes # ocean    91.50.Ey  
bottom quarks   14.65.Fy  
bound and unstable states; Bethe - Salpeter equations   11.10.St  
bound states # pump probe experiments with    82.53.Hn  
bound states # solutions of wave equations:    03.65.Ge  
boundaries # grain and twin    61.72.Mm  
boundaries (including magnetic transitions, metamagnetism, etc.) # magnetic phase    75.30.Kz  
boundary effects (interfacial and free surface flows) # slip    83.50.Lh  
boundary effects; reflection and refraction # edge and    42.25.Gy  
boundary layer and shear turbulence   47.27.Nz  
boundary layer effects # plasma-material interactions;    52.40.Hf  
boundary layer heat flow   44.20.+b  
boundary layer structure and processes   92.60.Fm  
boundary layers # laminar    47.15.Cb  
boundary value problems # ordinary and partial differential equations;    02.60.Lj  
boundary, and point contact devices # surface barrier,    85.30.Hi  
boundary-integral methods   02.70.Pt  
boundary-value problems # electrostatics; Poisson and Laplace equations,    41.20.Cv  
boundary-value problems # magnetostatics; magnetic shielding, magnetic induction,    41.20.Gz  
brachytherapy   87.53.Jw  
branch, metal poor, etc.) # population II stars (horizontal    97.20.Tr  
branches of physics and astronomy # instruments, apparatus, and components common to several    07.  
branches of physics and astronomy # measurements common to several    06.30.-k  
branches of physics and astronomy # other topics in instruments, apparatus, and components common to several    07.90.+c  
breakdown and space-charge effects # dielectric    77.22.Jp  
breakdown and tunneling devices (including resonance tunneling devices) # junction    85.30.Mn  
breakdown, electron and ion mobility, etc.) # electrical properties (ionization,    51.50.+v  
breaking # spontaneous and radiative symmetry    11.30.Qc  
breaking models) # Monte_Carlo simulations (including hadron and parton cascades and string    24.10.Lx  
breaking of gauge symmetries # spontaneous    11.15.Ex  
breakup and momentum distributions   25.60.Gc  
breeder reactors # fast and    28.50.Ft  
bright-field, dark-field, phase contrast, DIC # light microscopy:    87.64.Rr  
Brillouin and Raman scattering # Rayleigh scattering; stimulated    52.38.Bv  
Brillouin and Rayleigh scattering # stimulated    42.65.Es  
Brillouin and Rayleigh scattering; other light scattering   78.35.+c  
Brillouin zone sampling, iterative diagonalization, pseudopotential construction) # computational methodology (   71.15.Dx  
brittleness, fracture, and cracks # fatigue,    62.20.Mk  
broken symmetry phases   73.22.Gk  
bromide based, radiochromic, etc. # films: silver    87.66.Cd  
brown dwarfs # low luminosity stars, subdwarfs, and    97.20.Vs  
Brownian dynamics # molecular dynamics,    83.10.Mj  
Brownian motion   05.40.Jc  
Brownian motion # fluctuation phenomena, random processes, noise, and    05.40.-a  
bubbles # drops and    47.55.Dz  
bubbles # intercloud medium (ICM); hot and highly ionized gas;    98.38.Kx  
bubbles # intercloud medium (ICM); hot and highly ionized gas;    98.58.Kh  
bubbles) # domain structure (including magnetic    75.70.Kw  
buckling and instability # static    46.32.+x  
bulge (including black hole and distance measurements) # galactic center, bar, circumnuclear matter, and    98.35.Jk  
bulges # galactic nuclei (including black holes), circumnuclear matter, and    98.62.Js  
bulk materials # electronic structure of    71.  
bulk materials and thin films # optical properties of    78.20.-e  
bulk semiconductor and conductivity oscillation devices (including Hall effect devices, space-charge-limited devices, and Gunn effect devices)   85.30.Fg  
bumpy tori, and other toroidal confinement devices # stellarators, torsatrons, heliacs,    52.55.Hc  
buoyancy-driven instability   47.20.Bp  
bursts # gamma-ray sources; gamma-ray    98.70.Rz  
bursts # x-ray sources; x-ray    98.70.Qy  
bursts, and related phenomena # flares,    96.60.Rd  
bursts; galactic winds and fountains # jets and    98.62.Nx  
business, and financial markets # economics,    89.65.Gh  
c Big_Bang nucleosynthesis) # origin, formation, and abundances of the elements (see also 26.35.+   98.80.Ft  
c computational techniques in mathematical methods in physics) # computational methods in continuum mechanics (see also 02.70.-   46.15.-x  
C, S, R, and N) # carbon stars, S stars, and related types (   97.30.Hk  
cables (including superconducting cables) # high-current and high-voltage technology: power systems; power transmission lines and    84.70.+p  
cables) # high-current and high-voltage technology: power systems; power transmission lines and cables (including superconducting    84.70.+p  
calculations # ab initio    31.15.Ar  
calculations # hadron mass models and    12.40.Yx  
calculations # lattice QCD    12.38.Gc  
calculations # methods of electronic structure    71.15.-m  
calculations # other nonperturbative    12.38.Lg  
calculations # perturbative    12.38.Bx  
calculations # specific    12.20.Ds  
calculations # total energy and cohesive energy    71.15.Nc  
calculations # valence bond    31.15.Rh  
calculations (Car - Parrinello) and other numerical simulations # molecular dynamics    71.15.Pd  
calculations (differential overlap, Hueckel, PPP methods, etc.) # semi-empirical and empirical    31.15.Ct  
calculations (including Thomas - Fermi and Thomas - Fermi - Dirac models) # statistical model    31.15.Bs  
calculations and mathematical techniques in atomic and molecular physics (excluding electron correlation calculations)   31.15.-p  
calculations and measurements; effective mass, g factor # fermi surface:    71.18.+y  
calculations and modeling # theory of crystal structure, crystal symmetry;    61.50.Ah  
calculations for atoms and ions: excited states # electron correlation    31.25.Jf  
calculations for atoms and ions: ground state # electron correlation    31.25.Eb  
calculations for atoms and molecules # electron correlation    31.25.-v  
calculations for diatomic molecules # electron correlation    31.25.Nj  
calculations for polyatomic molecules # electron correlation    31.25.Qm  
calculations of adsorbate structure and reactions # ab initio    68.43.Bc  
calculations) # calculations and mathematical techniques in atomic and molecular physics (excluding electron correlation    31.15.-p  
calculus # operational    02.30.Vv  
calculus methods # perturbation and fractional    45.10.Hj  
calculus of variations   02.30.Xx  
calendars # ephemerides, almanacs, and    95.10.Km  
calibrate relativistic heavy ion collisions, should be classified under both 25.75.-q and the 13. or 25. category appropriate to the light ions) # relativistic heavy-ion collisions (collisions induced by light ions studied to    25.75.-q  
calorimeters   07.20.Fw  
calorimeters   29.40.Vj  
calorimetric dosimetry   87.66.Na  
cameras # scintillation    87.58.Pm  
cameras, etc. # display and recording equipment, oscilloscopes, TV    07.07.Hj  
Canis Majoris, SX Phoenicius, etc.) # low-amplitude blue variables (alpha Cygni, beta Cephei, delta Scuti, delta Delphini, delta    97.30.Dg  
canonical formalism, Lagrangians, and variational principles   04.20.Fy  
canonical quantization   04.60.Ds  
Canum Venaticorum, FU Orionis, R Coronae Borealis variables, etc.) # flare stars (UV Ceti, RS    97.30.Nr  
cap ionosphere # polar    94.20.Kj  
capacitance, inductance, impedance, and admittance, etc.) # electric variable measurements (including voltage, current, resistance,    84.37.+q  
capacities and heats of phase transitions # heat    82.60.Fa  
capacities, critical exponents, etc.) # static properties (order parameter, static susceptibility, heat    75.40.Cx  
capacitor banks # energy storage systems, including    84.60.Ve  
capacitors   84.32.Tt  
capacity # heat    65.40.Ba  
capacity, thermal expansion, etc. # thermal properties of amorphous solids and glasses: heat    65.60.+a  
capacity, thermal expansion, etc. # thermal properties of liquids: heat    65.20.+w  
capillary waves   92.10.Cg  
capillary waves) # dynamics (   68.03.Kn  
capture # beta decay; double beta decay; electron and muon    23.40.-s  
capture # radiative    25.40.Lw  
Car - Parrinello) and other numerical simulations # molecular dynamics calculations (   71.15.Pd  
carbides, chalcogenides, etc. # elements, oxides, nitrides, borides,    77.84.Bw  
carbides, hydrides, nitrides, oxides, and silicides) # ceramics and refractories (including borides,    81.05.Je  
carbon stars, S stars, and related types (C, S, R, and N)   97.30.Hk  
carbon, diamond, graphite   81.05.Uw  
carbonitridation # surface hardening: nitridation, carburization,    81.65.Lp  
carburization, carbonitridation # surface hardening: nitridation,    81.65.Lp  
cardiac dynamics   87.19.Hh  
carrier phenomena # surface conductivity and    73.25.+i  
carriers # electrical injection of spin polarized    72.25.Hg  
carriers # optical creation of spin polarized    72.25.Fe  
carriers: generation, recombination, lifetime, and trapping # charge    72.20.Jv  
CARS # stimulated Raman scattering;    42.65.Dr  
cartography   91.10.Da  
cascades and string breaking models) # Monte_Carlo simulations (including hadron and parton    24.10.Lx  
cataclysmic (eruptive) variables # novae, dwarf novae, recurrent novae, and other    97.30.Qt  
cataclysmic binaries (novae, dwarf novae, recurrent novae, and nova-like objects); symbiotic stars   97.80.Gm  
catalogs, atlases, sky surveys, databases, retrieval systems, archives, etc. # astronomical    95.80.+p  
catalysis # surface structure, reactivity and    82.45.Jn  
catalysis at surfaces # surface and interface chemistry; heterogeneous    82.65.+r  
catalysis in solution, polymers and zeolites # homogeneous    82.30.Vy  
catalysis in zeolites (measurements or simulations) # mechanism and kinetics of    82.75.Qt  
catalytic methods   81.16.Hc  
category appropriate to the light ions) # relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy ion collisions, should be classified under both 25.75.-q and the 13. or 25.    25.75.-q  
cathodoluminescence, ionoluminescence   78.60.Hk  
causal structure, spinor structure # spacetime topology,    04.20.Gz  
caused by infrared radiation # processes    82.50.Bc  
caused by visible and UV light # processes    82.50.Hp  
caused by x-rays or gamma-rays # processes    82.50.Kx  
cavitation   47.55.Bx  
cavities # laminar flows in    47.15.Rq  
cavities, amplifiers, arrays, and rings # resonators,    42.60.Da  
CCD detectors) # photodetectors (including infrared and    85.60.Gz  
celestial mechanics   45.50.Pk  
celestial mechanics (including n-body problems)   95.10.Ce  
cell complexes # manifolds and    02.40.Sf  
cell locomotion; chemotaxis and related directed motion   87.17.Jj  
cell method # particle-in-   52.65.Rr  
cell walls   87.16.Gj  
cells # aggregation and other collective behavior of motile    87.18.Ed  
cells # electrochemical conversion and storage: electrochemical cells and batteries; fuel    84.60.Dn  
cells # electrophysiology of nerve    87.17.Nn  
cells # high-pressure apparatus; shock tubes; diamond anvil    07.35.+k  
cells and arrays # photoelectric conversion: solar    84.60.Jt  
cells and batteries; fuel cells # electrochemical conversion and storage: electrochemical    84.60.Dn  
cells and higher organisms # effects of radiation and external fields on biomolecules,    87.50.-a  
cellular engineering and biotechnology # tissue and    87.80.Rb  
cellular populations # spatiotemporal pattern formation in    87.18.Hf  
cellular structure and processes   87.17.-d  
cenozoic   91.70.Bf  
censorship # singularities and cosmic    04.20.Dw  
center, bar, circumnuclear matter, and bulge (including black hole and distance measurements) # galactic    98.35.Jk  
centers and other defects # color    76.30.Mi  
centers, etc.) and defect clusters # point defects (vacancies, interstitials, color    61.72.Ji  
Cephei, delta Scuti, delta Delphini, delta Canis Majoris, SX Phoenicius, etc.) # low-amplitude blue variables (alpha Cygni, beta    97.30.Dg  
Cephei, W Virginis) # cepheids (delta    97.30.Gj  
cepheids (delta Cephei, W Virginis)   97.30.Gj  
ceramic and refractory composites # cermets,    81.05.Mh  
ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides)   81.05.Je  
ceramics, etc. # niobates, titanates, tantalates, PZT    77.84.Dy  
cermets, ceramic and refractory composites   81.05.Mh  
Ceti, RS Canum Venaticorum, FU Orionis, R Coronae Borealis variables, etc.) # flare stars (UV    97.30.Nr  
chain reactions; molecule-molecule reactions # atom and radical reactions;    82.30.Cf  
chains and sequences) # constitution (   36.20.Fz  
chalcogenides, etc. # elements, oxides, nitrides, borides, carbides,    77.84.Bw  
chambers, auxiliary apparatus, and materials # vacuum    07.30.Kf  
chambers, proportional, and avalanche counters # gas-filled counters: ionization    29.40.Cs  
change # global    92.70.-j  
changes # dynamics and conformational    87.15.He  
changes # morphological instability; phase    47.20.Hw  
changes # phase    91.60.Hg  
changes # structural and phase    83.10.Tv  
channel and internal heat flow   44.15.+a  
channeling phenomena (blocking, energy loss, etc.)   61.85.+p  
channeling, and filamentation in plasmas # self-focussing,    52.38.Hb  
channels # active transport processes; ion    87.16.Uv  
channels # flow in    83.50.Ha  
channels # hydrodynamics in specific geometries, flow in narrow    67.40.Hf  
channels, nozzles, and conduits # flows in ducts,    47.60.+i  
chaos   47.52.+j  
chaos # communication using    05.45.Vx  
chaos # control of chaos, applications of    05.45.Gg  
chaos # high-dimensional    05.45.Jn  
chaos # low-dimensional    05.45.Ac  
chaos ("quantum chaos") # semiclassical    05.45.Mt  
chaos and complexity, and optical spatio-temporal dynamics # dynamics of nonlinear optical systems; optical instabilities, optical    42.65.Sf  
chaos in nuclear systems   24.60.Lz  
chaos phenomena # fluctuation and    52.25.Gj  
chaos") # semiclassical chaos ("quantum    05.45.Mt  
chaos, and bifurcations # oscillations,    82.40.Bj  
chaos, and bifurcations in physical chemistry and chemical physics) # nonequilibrium and irreversible thermodynamics (see also 82.40.Bj oscillations,    05.70.Ln  
chaos, applications of chaos # control of    05.45.Gg  
chaotic dynamics   95.10.Fh  
chaotic models # numerical simulations of    05.45.Pq  
chaotic phenomena, inflationary universe, etc.) # particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings,    98.80.Cq  
characteristics # beam    29.27.Fh  
characteristics # diffraction efficiency, resolution, and other hologram    42.40.Lx  
characteristics and properties # planetary, asteroid, cometary, and satellite    96.35.-j  
characteristics and properties # stellar    97.10.-q  
characteristics and properties of external galaxies and extragalactic objects   98.62.-g  
characteristics and properties of the Milky_Way galaxy   98.35.-a  
characteristics of energy conversion systems; figure of merit # performance    84.60.Bk  
characteristics: profile,intensity, and power; spatial pattern formation # beam    42.60.Jf  
characterization # nanoscale materials and structures: fabrication and    81.07.-b  
characterization by particle-surface scattering # surface    68.49.-h  
characterization, design, and modeling # magnetic device    85.70.Ay  
characterization, design, and modeling # optoelectronic device    85.60.Bt  
characterization, design, and modeling # semiconductor-device    85.30.De  
characterization, design, and modeling # superconducting device    85.25.Am  
characterization, design, and modeling # vacuum microelectronic device    85.45.Bz  
charge (electron, proton) transfer in biological systems   82.39.Jn  
charge carriers: generation, recombination, lifetime, and trapping   72.20.Jv  
charge conjugation, parity, time reversal, and other discrete symmetries   11.30.Er