Electrons in molecules

The electron density distribution in a molecule determines its stability, geometry and reactivity, in short its chemistry.     

Teacher self-report on learner engagement strategies in the early years classroom

Effective engagement of young children in the classroom is a critical step toward achieving positive learning outcomes. The Learning and Engagement Questionnaire (LEQ) was developed by the first two authors to identify ways in which teachers strive to engage learners in the classroom. In this study, the factor structure of the LEQ is examined. Participants were 274 teachers of children in their first 3 years of formal schooling. An exploratory factor analysis was conducted and supported a five factor solution: Goal Directed Learning; Task Selection; Teacher Responsiveness; Intensive Teaching; and Planning the Learning Environment.     

A new set of orthogonal functions and its application to the analysis of dynamic systems

The present work proposes a complementary pair of orthogonal triangular function (TF) sets derived from the well-known block pulse function (BPF) set. The operational matrices for integration in TF domain have been computed and their relation with the BPF domain integral operational matrix is shown. It has been established with illustration that the TF domain technique is more accurate than the BPF domain technique as far as integration is concerned, and it provides with a piecewise linear solution.As a further study, the newly proposed sets have been applied to the analysis of dynamic systems to prove the fact that it introduces less mean integral squared error (MISE) than the staircase solution obtained from BPF domain analysis, without any extra computational burden. Finally, a detailed study of the representational error has been made to estimate the upper bound of the MISE for the TF approximation of a function f(t) of Lebesgue measure.     

Reactions to “barriers to the implementation of career education for special education”

Journal of Career Development -     

Just the Facts, Ma'am

In this column, the author humorously relates how a childbirth educator transporting medical antiques caused a stir in airport security.     

Finding humor in the mundane

In this column, the author encourages everyone to find humor in the daily routine...and to use more lotion.     

Estimation of the levels of atrial natriuretic peptide (ANP) in cardiac blood samples by a simple and indigenous enzyme linked immunosorbent assay

Levels of Atrial Natriuretic Peptide (ANP) were estimated in twenty four blood samples collected from the right and the left ventricles of the patients undergoing cardiac catheterization by an Enzyme Linked Immunosorbent Assay (ELISA) developed to the sensitivity of 5 pp/well and within 10% of interassay coeficient of variance. Simultaneously, levels of ANP in plasma samples from the systemic venous blood of seventy five normal subjects were also estimated which ranged between 25–60 pg/ml.     

What if ... ?

In this column, a childbirth educator wonders how to impress upon parents the importance of accepting their children for who they are, just as they are.