Background There are surprisingly few resources available which offer an introductory guide to preparing a national population projection using cohort-component model. Many demography textbooks cover projections quite briefly, and many academic papers on focus advanced technical issues.
 Aims The aim of this paper is provide short accessible producing national-scale the model.
 Data m...

This paper evaluate the influence of dead load reduction in seismic design a public building to be built at zone bigger hazard Cuba on soil type D by Cuban code NC 46:2017. The evaluation was carried out comparing structural heavy and lightened variant, based critical sections superstructure including joints. solicitations static equivalent method are offered computers program SAP 2000NL versio...