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R. A. Paggi; M. C. Ferrari; M. Cerletti; M. I. Giménez; T. S. Schwarz; A. Marchfelder; R. E. De Castro – Biochemistry and Molecular Biology Education, 2025
Perturbation of gene expression using RNA interference (RNAi) or CRISPR interference (CRISPRi) is a useful strategy to explore the function of essential genes. In the archaeon "Haloferax volcanii," the CRISPR-Cas system has been adapted as a CRISPRi tool to silence the expression of specific genes. We developed a laboratory class (LC) to…
Descriptors: Undergraduate Students, Laboratory Experiments, Science Instruction, Biochemistry
Nicholas A. Arnold; Shiva K. Kyasa – Journal of Chemical Education, 2023
Herein, two simulated electrochemistry experiments, namely, the (i) electrochemical series, using an electronic half-cell module, and (ii) citrus fruit battery series are demonstrated for undergraduate chemistry students. The demonstration can be performed for in-person and remote students by connecting the electronic half-cell module to a…
Descriptors: Distance Education, Chemistry, Laboratory Experiments, Undergraduate Students
Ronald Soong; Lindsey Fiddes; Jacob Pellizzari; Katelyn Downey; Monica Bastawrous; Antonio Adamo; Andre Simpson; Vivienne Luk – Journal of Chemical Education, 2023
Cryogenic electron microscopy (cryo-EM) is a powerful technique capable of characterizing large protein complexes that are otherwise impossible to characterize using traditional crystallography methods. Cryo-EM has played a pivotal role in our understanding of the structure--function relationship of the spike proteins on the COVID-19 viral…
Descriptors: Undergraduate Students, Chemistry, Science Instruction, Laboratory Experiments
Federico De Lorenzis; Alessandro Visconti; Simone Restivo; Francesca Mazzini; Serena Esposito; Silvia Fraterrigo Garofalo; Luca Marmo; Debora Fino; Fabrizio Lamberti – Smart Learning Environments, 2024
The use of Virtual Reality (VR) in education is getting more and more common, especially when hands-on learning experiences have to be delivered. With VR it becomes possible, e.g., to simulate dangerous or costly procedures that could hardly be implemented in real settings. However, engaging large classes in immersive laboratory activities may be…
Descriptors: Computer Simulation, Cooperative Learning, Chemistry, Science Education
Thiago Costa Caetano; Camila Cardoso Moreira; Mikael Frank Rezende Junior – IEEE Transactions on Education, 2024
Contribution: This work seeks to ascertain the validity of a remote-controlled experiment of the Physics Remote Lab in the educational context, specifically among students from engineering courses. Background: In 2012, it has been started the development of the Physics Remote Lab at the Federal University of Itajubá, Brazil, a laboratory with a…
Descriptors: Engineering Education, Laboratory Experiments, Foreign Countries, Computer Uses in Education
Killian, Benjamin J.; Singletary, Steven – Journal of Chemical Education, 2022
We present a modernization of the undergraduate physical chemistry laboratory experiment for determining the speed of sound in various gases from resonant frequencies in a spherical resonator. The resonator (schematic IR = 7.5 cm) is constructed by 3D printing with eco-friendly poly(lactic acid), a commercially viable alternative to traditional…
Descriptors: Undergraduate Study, College Science, Chemistry, Physics
Sedky, Nada K.; Arafa, Reem K. – Biochemistry and Molecular Biology Education, 2022
Nowadays, novel Biochemistry lab techniques are being introduced at a very fast pace in scientific research. This requires development of new labs for undergraduate Biochemistry courses to equip the students with up-to-date techniques. However, the time limit of Biochemistry labs for undergraduate students represents a major obstacle. This article…
Descriptors: Biochemistry, Science Instruction, Undergraduate Study, College Science
Samon, Sigal; Levy, Sharona T. – Science & Education, 2021
How do different components of a learning environment contribute to learning in science? The study examines the contribution of laboratory experiments and computer model explorations to the learning of chemistry through a complex-systems approach. Specifically, junior high-school students' learning of chemistry via four different methods were…
Descriptors: Systems Approach, Laboratory Experiments, Computer Uses in Education, Chemistry
Wehrbein, William M. – Physics Teacher, 2022
Recognized as one of the most beautiful experiments of all time, the oil drop experiment performed by Robert Millikan and his graduate students (primarily Harvey Fletcher) is a standard in the repertoire of experiments performed by undergraduate physics students. However, "as a teaching lab it does not enjoy a good reputation for three…
Descriptors: Science Experiments, Science Laboratories, Undergraduate Students, College Science
Biswas, Subhrajyoti; Roy, Durjoy – Physics Education, 2022
At constant current (I) the forward bias potential (V) of a "pn" junction diode may be considered to vary linearly with temperature (t) within a temperature range. Based on this property we have constructed diode thermometer using germanium (Ge) and silicon (Si) diodes. The experimental "V-t" data at constant forward current…
Descriptors: Science Instruction, Physics, Science Experiments, Laboratory Experiments
Baker, Blane; Sherer, Maggie; Mossinghoff, Ben; Laycock, Will – Physics Teacher, 2022
A wood cantilever of length ~2.5 m is driven into resonance using the hand as a simple driver. Video recordings of these oscillations are analyzed to determine experimental second harmonic (n = 2) damped resonance frequencies. These frequencies are compared to theoretical ones, obtained from measurements of elastic moduli, damping properties, and…
Descriptors: Science Instruction, Science Laboratories, Science Experiments, Laboratory Experiments