The objective of this report is to document the process and summarize the results from the second phase of the pilot implementation of statistical models for measuring the value-added of Bulgarian schools through analysis of the national student' assessments results. This report presents the...

Bienaymé-Galton-Watson branching processes subordinated to a continuous time random index are considered. The branching processes are assumed to be critical with finite or infinite offspring variance. The indexing process is assumed to be a renewal one with finite or infinite mean of the...

Limiting distributions for the spent and residual life times in a superposition of independent renewal processes are obtained in the case when the interarrival times belong to domains of attraction of stable laws.

Stem and precursor cells play a critical role in tissue development, maintenance, and repair throughout the life. Often, experimental limitations prevent direct observation of the stem cell compartment, thereby posing substantial challenges to the analysis of such cellular systems. Two-type...

The objective of this report is to describe the process and summarize the results from the pilot implementation of statistical models for measuring the value-added of Bulgarian schools through analysis of the national student' assessments results. This report presents the technical aspects of...