Allameh Tabataba'i University

Strategic repositioning of focal firms in business ecosystems: a trajectory-based perspective

Purpose This study examines how focal firms evolve within business ecosystems over time. While prior research has explored ecosystem strategies, structural changes, and firm-level adaptations, it has often examined these dynamics either through specific dimensions or within a lim...

Plasma p-tau217 as a two-cutoff approach to improve tau-PET screening and trial recruitment in Alzheimer’s disease

Abstract Blood-based biomarkers could broaden access to Alzheimer’s disease diagnostics, but their ability to approximate tau PET, and to address gray-zone results, remains uncertain. We evaluated plasma p-tau217 against tau PET using a harmonized ADNI baseline cohort and an inde...

Exploring EFL teachers' AI literacy: a phenomenological study within the P-GenAI-C framework

Purpose Generative artificial intelligence (GenAI) is rapidly reshaping English as a foreign language (EFL) teaching. However, little is known about how experienced teachers make sense of professional AI literacy in the absence of institutional guidance. This study explored how I...