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Realization of a Bilayer Elastic Topological Insulator

open access: yesAdvanced Science, EarlyView.
Bilayer elastic wave topological insulators are experimentally realized, introducing the layer degree of freedom to access four topological phases. This enables diverse domain walls and transmission behaviors, including interlayer conversion and beam splitting.
Chengzhi Ma   +4 more
wiley   +1 more source

Achievement for All national evaluation : final report [PDF]

open access: yes, 2011
Humphrey, Neil, Squires, Garry
core  

Investigating the health and safety condition of the care environment of primary schools based on crisis prevention approach. [PDF]

open access: yesJ Educ Health Promot
Ahmadi-Mazhin S   +11 more
europepmc   +1 more source

What Are School Attendance Problems?

2021
This chapter provides an overview of types of school attendance problems, including full-day absences, partial absences or skipped classes, tardiness, morning behavior problems in an attempt to miss school, and distress during the school day. This chapter also includes a summary of what the book is about as well as a discussion of conditions under ...
C. Kearney
openaire   +2 more sources

Assessing school attendance problems: A critical systematic review of questionnaires

International Journal of Educational Research, 2021
Abstract Assessment methods for school attendance problems (SAPs) have burgeoned tremendously in recent years. This study involved a systematic review of questionnaires assessing SAPs. Literature searches up to November 2019 were conducted in four databases (Web of Science, Scopus, PsycINFO and ERIC). Nine instruments met the four selection criteria:
Gonzálvez, Carolina   +3 more
openaire   +3 more sources

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