The influence of the reference standard employed in the calculation of 13C NMR chemical shifts was investigated over a large variety of known organic compounds, using different quantum chemistrymethods and basis sets. After ...

The relationship between differential item functioning (DIF) and item difficulty on the SAT is such that more difficult items tended to exhibit DIF in favor of the focal group (usually minority groups). These results were ...

This paper compares the development, characteristics and implementation of standards in different OECD countries. More specifically, it focuses on three different levels for which standards can be developed: (i) students ...

This paper compares the development, characteristics and implementation of standards in different OECD countries. More specifically, it focuses on three different levels for which standards can be developed: (i) students ...

This article examines the challenges posed to education planners by a standards-based approach

Purpose The use of standards is currently characterized by International Organization for Standardization (ISO) as essential for the efficient development of products, processes, services and systems in organizations; that ...

Gauge including atomic orbitals (GIAO)1H NMR chemical shift calculations have been performed for 66 organic compounds at 72 di fferent levels of theory using the multi-standard approach (MSTD) previously developed for 13C ...

Space standards are envisioned as a powerful means to regulate dwelling design, ensuring the quality, functionality, and safety of homes. Their ultimate objective is to guarantee a minimum level of design quality that can ...