An integrated pair of experiments has been developed to introduce undergraduate students to the ways in which electrochemistry can complement conventional synthetic chemistry involving redox reactions. Students first use cyclic voltammetry and linear scan voltammetry to characterize and quantify the products of the reaction between…

A laboratory experiment is described in which students determine the concentration and speciation of iron in beer samples using cloud point extraction and absorbance spectroscopy. The basis of determination is the complexation between iron and 2-(5-bromo-2- pyridylazo)-5-diethylaminophenol (5-Br-PADAP) as a colorimetric reagent in an aqueous…

The convenient synthesis of dihydroberberine by the reduction of berberine is described as an experiment for an upper-division undergraduate organic chemistry laboratory course. Students obtained up to 74% yield of the desired pure product without the use of chromatographic techniques. The antimicrobial activities of both compounds against…

The electrocardiogram (ECG) is the primary diagnostic tool in cardiovascular diseases. Hence its interpretation is a core competency in medicine, where obvious deficiencies have been reported among learners. The aim of this study was to introduce the fundamentals of ECG knowledge and interpretation through early clinical exposure (ECE) based on a…

Purpose: Sustainable development is an issue of high relevance for all countries and universities play a fundamental role in promoting the participation of society members in achieving this objective. This study aims to conduct an open laboratory of social innovation (OPENLAB_SI) inside a university with society stakeholders, as a research and…

Moral ethic prevails in the science and education of chemistry. These issues are unique to chemistry and arise from between the theoretical and the practical behavior in laboratory. The study reported in the paper investigated the impact of personal moral philosophies on the safety practices of students in chemistry and related majors. The results…

Diffraction is an important phenomenon in physics. This paper describes using a scanning electron microscope (SEM) to produce cross-sectional images of iridescent seashells. When seashell cross-sections are viewed in a SEM, regular structure is seen. Seashells are a good example of a biocomposite material and good natural objects for introducing…

The Americans with Disabilities Act allows a student with a disability to bring a service dog into any facility where the public is allowed, including academic teaching and research laboratories. However, the presence of the service dog does have an impact on the safety of the student, the service dog, and others in the laboratory. This article…

This work shows the redesign of an elemental experience based on the Helmholtz resonator using 3D printing. A Helmholtz resonator is based on a volume and at least one opening that can include a tube or not. The air column inside the tube can be considered the mass of the system, whereas the volume represents the system's stiffness. Due to these…

Many college students struggle with technical difficulties when enrolled in an online or hybrid class. Sometimes students do not even have a choice about online options, such as in the COVID-19 era, when the shift to remote instruction has happened and could happen at any time. Students need support for success in the online environment, yet many…

A gamified approach toward Viva voce was implemented in a postlab activity to evaluate students in teams. In a game-show manner, students in teams of three select from an array of anonymized options to reveal a random question. They then chose one member of the team to answer. The assessor evaluated the team by the side instead of facing the…

This article discusses the question 'How is learning supported within innovation labs and what are its impeding factors?' It is based on three case studies already carried out on innovation labs in the social welfare sector in Germany. The use of innovation labs creates a specific setting for learning in the context of the workplace for its…

Architecture education may be able teach students more about real-life problem-solving than traditional subjects.

Laboratory practical sessions are critical to scientific training in biology but usually fail to promote logical and hypothesis-driven reasoning and rely heavily on the teacher's instructions. This paper describes a 2-day laboratory practicum in which students prepare and analyze larval cuticle preparations of "Drosophila" segmentation…

For science students doing traditional laboratory experiments, often it may feel as if the apparatus and experiment have been specifically chosen for good results. They suspect that the science they are learning in the classroom will not match nearly as well in the real world. However, many educators have observed that student motivation and…