Attitude of the state and private forest owners towards forests as the basis for defining the model of forest management planning in Serbia

Phonon density of states, anharmonicity, electron-phonon coupling, and possible multigap superconductivity in the clathrate superconductorsBa8Si46andLortz1, Viennois2, Petrović3 et al. 2008Phys. Rev. B

“…A model with a continuous gap distribution cannot describe such a pronounced bump in the temperature dependence of the specific heat. In scanning-tunneling data at a fixed temperature, it may however be difficult to distinguish a two-gap order parameter from an anisotropic s-wave gap, 36 while the temperature dependence of the specific heat clearly favors a twogap scenario. Recent band-structure calculations 27 revealed that several bands cross the Fermi level in Ba 8 Si 46 .…”

Private forest owners' willingness to supply woody biomass in selected South-Eastern European countries

“…The SIZE variable indicates that the owners are more willing to supply woody biomass when the size of their forest is bigger. Petrovi c [67] found that private forest owners with bigger properties are more interested in obtaining the maximum annual cut compared to the smaller ones. Small scale forest properties which are in addition fragmented raise the transaction cost of the utilization of forest and the placement of woody biomass on the national market.…”