Comment on the paper: "Water content and its effect on ultrasound propagation in concrete- the possibility of NDE". Ultrasonic 38(2000) 546-552 by Etsuzo Ohdaira and Nobuyoshi Masuzawa

Comment on Zarechnaya et al. Pressure-induced isostructural phase transformation in gamma-B28. Phys. Rev. B 82, 184111 (2010)

Comment on ``Analysis of Floquet formulation of time-dependent density-functional theory'' [Chem. Phys. Lett. {\bf 433} (2006), 204]

Comment on ``Coherent Control of a V-Type Three-Level System in a Single Quantum Dot''

Comment on ``Collapse of Coherent Quasiparticle States in $θ$-(BEDT-TTF)$_2$I$_3$ Observed by Optical Spectroscopy''

Comment on ``Comparison of the $Cc$ and $R3c$ space groups for the superlattice phase of Pb(Zr$_{0.52}$Ti$_{0.48}$)O$_3$''

Comment on ``Conduction states in oxide perovskites: Three manifestations of Ti$^{3 +}$ Jahn-Teller polarons in barium titanate''

Comment on ``Determination of Interlayer Diffusion Parameters for Ag(111)''

Comment on ``Elastic Stabilization of a Single-Domain Ferroelectric State in Nanoscale Capacitors and Tunnel Junctions" [N.A. Pertsev and H. Kohlstedt, Phys. Rev. Lett. 98, 257603 (2007).]

Comment on ``Local dimer-adatom stacking fault structures from 3x3 to 13x13 along Si(111)-7x7 domain boundaries''

Comment on ``Measurement of the $^3$He mass diffusion coefficient in superfluid $^4$He over the 0.45--0.95 K temperature range

Comment on ``Method to analyze electromechanical stability of dielectric elastomers" [Appl. Phys. Lett. 91, 061921 (2007)]

Comment on ``Solidification of a Supercooled Liquid in a Narrow Channel''

Comment on ``Spin and cyclotron energies of electrons in GaAs/GaAlAs quantum wells''

Comment on: "Different Results for the Equilibrium Phases of Cerium above 5 GPa"

Comment on: "Ferroelectricity in spiral magnets"

Comment on: High-Pressure Elasticity of alpha-Quartz: Instability and Ferroelastic Transition

Comment to "Experimental Evidence of a Dynamic Jahn-Teller Effect in C60+"

Comment to: "Noncovalent functionalization of carbon nanotubes by aromatic organic molecules" [ Appl. Phys. Lett. 82, 3746 (2003) ]

Comment: "Electrical injection and detection of spin accumulation in silicon at 500 K with magnetic metal / silicon dioxide contacts" [Nature Commun. 2:245 doi:10.1038/ncomms125 (2011)]