Long Le Kim

Vietnam National University, Hanoi | VNU · Faculty of Chemistry

Given principals’ central role in school performance, this study seeks to explore factors that influence school principal competency. The study employed a quantitative research approach. A survey questionnaire was administered to 290 principals across six northwestern mountainous provinces in Vietnam. The questionnaire considered eight areas of pri...

Molecular structures of N‐Trifluoroacetylpiperidine 1 and 4‐Methylpyridine‐N‐oxide 2 are studied by gas‐phase electron diffraction/mass spectrometry (GED / MS) and quantum chemical (QC) calculations. The strong conjugation of the electron lone pair on the nitrogen atom and the double bond of the carbonyl cause molecule 1 to exist solely in the form...

This study gives a quantitative structure-activity relationship (QSAR) analysis of the estrogen activities of bisphenol A and analogs. The chemical structures of 23 Bisphenol A analogs have been characterized by quantum-electronic descriptors. The present study was performed using multiple regression analysis (MLR) and artificial neural network (AN...

This article presents the results of the quantitative structure – activity relationship (QSAR) study of bisphenol A (BPA) and its analogs using quantum chemistry calculations and method of artificial neural networks (ANN). Molecular structural analysis is performed using Density Functional Theory (DFT) at the B3LYP/6-31+G(d) level. The quantum calc...

This article presents the results of the QSAR study of bisphenol A and its analogs. Molecular-chemical analysis of these substances is performed on base of the Density Functional Theory (DFT), using the function 6-31 + G *. The calculation of the characteristic parameters of the structure is given by optimizing molecular structures, vibrational fre...

The International Journal of Humanities and Social Studies, 4 (2), 324-330. This study focuses attention on a comparative analysis of teachers’ professional identities in Malaysia and Vietnam. Study employed a qualitative approach in its investigation of novice teachers’ professional identities for consequent comparison in the two countries of stud...