The ultimate dental book since 1920

Book Circulation Per U.S. Public Library User Since 1856

Underappreciated data concerning libraries’ holdings and circulation over the past century and a half offer insights into the behavior of libraries and their users. Book circulation per public library user indicates an outcome of users’ demand for books and libraries’ supply of books. From 1856 to 1978, library users borrowed from U.S. public libraries about 15 books per user per year. From 197...

Influence of the ultimate torsion on the geometry of dental implants.

This study evaluated the profile of implants subjected to torsion test. Four types of implants (Conexão®) were analyzed: Master Porous (MP - external hexagon, cylindrical, double-porous surface implants; 11.5 X 3.75 mm), Master Screw (MS - external hexagon, cylindrical, machined implants; 11.5 X 3.75 mm), Conect Conic (CC - external hexagon, cylindrical, machined implants; 11.5 X 3.5 mm) and Ma...

The European Metropolis 1920-2000

Comparative studies of urbanisation can be characterized by their emphasis on the quantitative and visual aspects of urban growth, which is amongst other things reflected in the analysis of spatial patterns and rates of urban population growth. The visual aspects relate both to the spatial realisation of the demand for urban land use and its functional variation. This emphasis can be understood...

Homer F. Swift, 1920

Since Since Kai

• The Perfect introduces a time interval: the “perfect time span” (PTS). • The Right Boundary (RB) of the PTS is set by Tense. • The Left Boundary (LB) of the PTS may be set by “perfect adverbials”. • The lower predicate (event) is predicated of the PTS, either directly or mediated by various devices, most notably operators associated with the Perfective or Imperfective. • When the predicate ha...