Introduction: A Handbook for Documentary Geniza Research in the Twenty-First Century

Ontology for the Twenty First Century: An Introduction with Recommendations

Vygotsky in Twenty-First-Century research

The global nitrogen cycle in the twenty-first century: introduction.

Introduction: Special Collections in the Twenty-first Century

The Eight Managerial Competencies: Essential Competencies for Twenty First Century Managers

The objective of the present study was to identify managerial competencies. This study reviewed existing managerial competencies in a cultural context resulting in the development of a broad based psychometrically sound leadership questionnaire. The unit of analysis of the research was a theoretical and experimental research related to managerial competencies, provided from seventeen Iranian an...