context1: Prof. Joshi's <strong>broad</strong> areas of interest are in theory of Condensed Matter and Collision Processes. His early research was in the study of phonons in metals and insulators. Later he studied electronic states in disordered systems and theory of electron correlation in <strong>narrow</strong> band solids.
context2: It is a medium-sized deciduous tree growing to 15–25 m (rarely to 35 m) tall, with pale gray bark, smooth on young trees, becoming scaly on old trees. The leaves are alternate, rhombic to <strong>narrow</strong> elliptic, 4–10 cm long and 2–5 cm <strong>broad</strong>, with a finely serrated margin and a rounded to acute apex; they are thinly hairy below. The flowers are produced in catkins.