The analogy among momentum, heat and mass transport phenomena is an important concept in chemical engineering education. This paper presents the analogy between heat exchanger and packed column calculations. The effectiveness-NTU method used to calculate outlet temperatures of hot and cold streams in an exchanger is introduced in a packed column…

This paper provides seven topics on sodium hydrogen carbonate (NaHCO[subscript 3]) and its ions for readers looking for familiar material phenomena to strengthen students' understanding of the chemical concepts of thermodynamics. The first concept is the ideal gas law, followed by the van't Hoff equation, Gibbs energy, pH change, chemical…

Background: General anaesthesia (GA) remains a vital modality to facilitate dental treatment for patients with special needs but there is limited literature to describe the types of patients requiring this form of care and the treatment they receive. Method: A cross-sectional clinical audit was conducted of patients treated under GA at the Day…

Purpose: Many institutions of higher education have committed to carbon neutrality. Given this goal, the main economic issue is minimizing cost. As for society as a whole, dominant decarbonization strategies are renewable electricity generation, electrification of end uses and energy efficiency. The purpose of this paper is to describe the optimum…

In 2017 Georgia instituted a flexibility policy through which school districts enter into performance contracts with the state that grant districts waivers from state rules and allow schools and districts greater autonomy. In exchange, schools and districts must meet academic performance targets. The performance contracts are intended to…

Beyond students' ability to manipulate variables and solve problems, chemistry instructors are also interested in students developing a deeper conceptual understanding of chemistry, that is, engaging in the process of sensemaking. The concept of sensemaking transcends problem-solving and focuses on students recognizing a gap in knowledge and…

The vocabulary size and composition of one group of full-term and three groups of low risk preterm children with different gestational ages (GA) were longitudinally compared at 10, 22 and 30 months of age. Expressive vocabulary development was assessed through the CDI. Cognitive development was also assessed at 22 months (Batelle Developmental…

Despite clear scientific evidence to support an urgent need to cut greenhouse gas emissions, societal action remains inadequate to meet international climate goals. New approaches in climate change communication are needed to motivate climate action. "World Climate" is an interactive, engaging, and socially rich role-play simulation that…

In this paper, we present simple demonstrations aimed at explaining the fundamental principles of the photoacoustic effect. To display the audible phenomenon that occurs as laser radiation gets absorbed by ethene gas, an optical chopper was used to modulate the power of a continuous-wave laser whose beam was directed into a gas. The absorbed…

Background: Cognitive-communication disorders are common following an acquired brain injury (ABI). Remediation should involve individualized goal-setting, yet few reports describe the effectiveness of setting communication goals in a group setting. Aims: To describe a process for setting and achieving goals for people with ABI. Methods &…

We present several modules that address social justice issues in an introductory statistics course. The activities consider possible disparities of housing location, language spoken at home, and job sector as they relate to, respectively, access to healthy foods, air pollution via proximity to traffic, and health concerns via proximity to fracking…

Background: Goal setting is a core aspect of human behaviour that drives action. The intention to achieve one's goals, however, does not necessarily translate into desired outcomes. Although the mental contrasting with implementation intentions (MCII) strategy has demonstrated strong efficacy, limited investigations have been conducted in a…

We describe a novel experiment for high school students that uses gas chromatography (GC) equipment to demonstrate the principles of chemical quantitation in the context of fragrant compounds. A highlight of the work is the use of inexpensive equipment and tools accessible to the usual high school laboratory. The students use control samples,…

The challenge of connecting employers and educators to collaboratively plan for training future workers is an enduring one -- particularly for jobs that are rapidly changing because of technological advancements. This report addresses this challenge as it pertains to employers and educators in the oil and natural gas industry located in and around…

This paper reports an experiment that investigates interpretive distinctions between two different expressions of generalization in Spanish. In particular, our aim was to find out when the distinction between generic statements (GS) such as "Tigers have stripes" and universally quantified statements (UQS) such as "All tigers have…