The objective of the present work was to analyze evolution productive indicators over time in Nelore cows Bolivian tropics. period between 1991 and 2016, corresponding 3899 calvings were used for research which belong Technology Center on Agriculture Livestock Bolivia belonging (FUNDATION CETABOL) Cooperativa Agropecuaria Integral San Juan de Yapacaní used. Cows ordered by birth into...

Americans’ attitudes toward same-sex relationships have liberalized considerably over the last 40 years. We examine how demographic processes generating social change in changed time. Using data from 1973 to 2018 General Social Survey and decomposition techniques, we estimate relative contributions of intracohort cohort replacement overall for three different periods. (1) period prior rapid inc...