Traditional theories of child language acquisition center around the existence of a language acquisition device which is speciically tuned for learning a particular class of languages. More recent proposals suggest that language acquisition is assisted by the evolution of languages towards forms that are easily learnable. In this paper, we evolve combinatorial languages which can be learned by ...

Length-biased time-to-event data are commonly encountered in applications ranging from epidemiological cohort studies or cancer prevention trials to studies of labor economy. A longstanding statistical problem is how to assess the association of risk factors with survival in the target population given the observed length-biased data. In this article, we demonstrate how to estimate these effect...

t his paper investigates the gain of bilateral trade between china and u.s. in manufacturing sectors when both countries play a role in asymmetric (biased) growth of  international trade. our model includes a special case of biased growth theory in international trade. we collected labor productivity, export and import data by using classification of manufacturing industries, for u.s. and china...

Gibel carp is a very successful invasive fish species in the waters of Georgian inland and the only fish species in Lake Madatapa. However, almost nothing is known about its biology and morpho-ecological peculiarities at the national level and even the distribution data is not documented. For the first time, we studied the population characteristics of gibel carp in Lake Madatapa (South Georgia...