
Michael MastroianniState University of New York | SUNY · Educational Theory and Practice
Michael Mastroianni
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8
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Introduction
Skills and Expertise
Publications
Publications (8)
This study examines elementary teachers reading children's science books aloud to students in the US. Our findings show that science read-aloud semiosis (meaning-making) extends beyond text delivery. In addition to making a written text orally available to students, teachers also deploy different types of gestures (pointing and iconic gesticulation...
This study examines how three elementary teachers refer to pictorial models (photographs, drawings, and cartoons) during science read-alouds. While one teacher used realistic photographs for the purpose of visually verifying facts about crystals, another employed analytical diagrams as heuristic tools to help students visualize complex target syste...
Promising pathways for photoassociative formation of ultracold heteronuclear alkali metal dimers in their lowest rovibronic levels (denoted X(0,0)) are examined using high-quality ab initio calculations of potential energy curves currently available. A promising pathway for KRb, involving the resonant coupling of the 2(1)Pi and 1(1)Pi states just b...
Promising pathways for photoassociative formation of ultracold heteronuclear alkali metal dimers in their lowest rovibronic levels (denoted X(0,0)) are examined using high quality ab initio calculations of potential energy curves currently available. A promising pathway for KRb, involving the resonant coupling of the $2 ^1\Pi$ and $1 ^1\Pi $ states...
We have studied the resonant coupling between rovibronic levels of different electronic states for the ten heteronuclear alkali dimers formed from combinations of Li, Na, K, Rb, and Cs. We focus on the energy range < 100 cm-1 below the lowest two excited asymptotes, which is relevant for photoassociative molecule formation. Within this range, we co...
We report on the construction of an apparatus for the trapping and detection of single metastable krypton atoms, which will be used to measure krypton contamination in other rare gases by Atom Trap Trace Analysis (ATTA). A beam of atoms excited to the 5s[3/2]2 (^3P2) metastable state are decelerated in a Zeeman slowing magnet, and loaded into a mag...
We report the construction of an optically excited metastable krypton atomic beam source. Ground-state Kr atoms are excited to the 5s[3/2]1 state by a 123 nm photon from a krypton resonance line lamp, then to the 5p[5/2]2 state by an 819 nm photon from a diode laser. From the 5p[3/2]2 state, they spontaneously decay into the 5s[3/2]2 (^3P2) metasta...