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Sweet, Chelsea; Akinfenwa, Oyewumi; Foley, Jonathan J., IV – Journal of Chemical Education, 2018
We present an interactive discovery-based approach to studying the properties of real gases using simple, yet realistic, molecular dynamics software. Use of this approach opens up a variety of opportunities for students to interact with the behaviors and underlying theories of real gases. Students can visualize gas behavior under a variety of…
Descriptors: Discovery Learning, Molecular Structure, Courseware, Kinetics
Ji, Li Li – Advances in Physiology Education, 2015
Skeletal muscle contraction is associated with the production of ROS due to altered O[subscript 2] distribution and flux in the cell. Despite a highly efficient antioxidant defense, a small surplus of ROS, such as hydrogen peroxide and nitric oxide, may serve as signaling molecules to stimulate cellular adaptation to reach new homeostasis largely…
Descriptors: Aging (Individuals), Exercise, Exercise Physiology, Older Adults
Peterson, Karen I.; Pullman, David P. – Journal of Chemical Education, 2016
A laboratory project for the upper-division physical chemistry laboratory is described, and it combines IR and Raman spectroscopies with Gaussian electronic structure calculations to determine the structure of the oxalate anion in solid alkali oxalates and in aqueous solution. The oxalate anion has two limiting structures whose vibrational spectra…
Descriptors: Science Instruction, Chemistry, Spectroscopy, Computation
Roy, Urmi – Biochemistry and Molecular Biology Education, 2016
This work presents a three-dimensional (3D) modeling exercise for undergraduate students in chemistry and health sciences disciplines, focusing on a protein-group linked to immune system regulation. Specifically, the exercise involves molecular modeling and structural analysis of tumor necrosis factor (TNF) proteins, both wild type and mutant. The…
Descriptors: Science Instruction, Cancer, Computer Simulation, Chemistry
Adem, Seid M.; Lueng, Sam H.; Elles, Lisa M. Sharpe; Shaver, Lee Alan – Journal of Chemical Education, 2016
Experiments in laboratory manuals intended for general, organic, and biological (GOB) chemistry laboratories include few opportunities for students to engage in instrumental methods of analysis. Many of these students seek careers in modern health-related fields where experience in spectroscopic techniques would be beneficial. A simple, rapid,…
Descriptors: Laboratory Experiments, Spectroscopy, Undergraduate Students, Hands on Science
Zhang, Yili; Smolen, Paul; Alberini, Cristina M.; Baxter, Douglas A.; Byrne, John H. – Learning & Memory, 2016
Inhibitory avoidance (IA) training in rodents initiates a molecular cascade within hippocampal neurons. This cascade contributes to the transition of short- to long-term memory (i.e., consolidation). Here, a differential equation-based model was developed to describe a positive feedback loop within this molecular cascade. The feedback loop begins…
Descriptors: Inhibition, Animals, Animal Behavior, Brain Hemisphere Functions
Ramalho, Maria J.; Pereira, M. Carmo – Journal of Chemical Education, 2016
In this work, a laboratory experiment to introduce graduate students to nanotechnology is described. Students prepared poly(lactic-"co"-glycolic acid) (PLGA) nanoparticles using two different synthesis procedures, a single and a double emulsion-solvent evaporation method. The students also performed a physicochemical characterization of…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Science Experiments
Paul Marshall; Timothy W. Bredy – npj Science of Learning, 2016
A complete understanding of the fundamental mechanisms of learning and memory continues to elude neuroscientists. Although many important discoveries have been made, the question of how memories are encoded and maintained at the molecular level remains. So far, this issue has been framed within the context of one of the most dominant concepts in…
Descriptors: Learning Processes, Memory, Neurosciences, Brain Hemisphere Functions
Stowe, Ryan L.; Herrington, Deborah G.; McKay, Robert L.; Cooper, Melanie M. – Journal of Chemical Education, 2019
Widespread adoption of the Next Generation Science Standards (NGSS) has created a need to carefully consider how chemistry curricula should support students in understanding the world in terms of atomic/molecular behavior. We argue that Standards-aligned coursework should be "core-ideas centered" due to evidence that curricula embedded…
Descriptors: High School Students, Science Instruction, Chemistry, Standards
Harakas, George N. – Journal of Chemical Education, 2018
This work describes an effective, low cost method to anodize small aluminum objects. The use of a PVC spacer between the anode and cathode significantly reduces the size of the electrochemical cell and electrolyte required for its operation. Students will explore the physical and chemical properties of aluminum and anodized aluminum. They will…
Descriptors: Chemistry, Metallurgy, Cost Effectiveness, Molecular Structure
Newman, Karla – Journal of Chemical Education, 2018
Almost all commercial quadrupole ICP-MS instruments use collision/reaction cells to either attenuate spectral interferences or shift the analyte of interest to an interference-free "m/z" (e.g., by O addition). A laboratory practical was developed to introduce the students to the basic operating principles of ICP-MS using a hands-on…
Descriptors: Molecular Structure, Spectroscopy, College Science, Laboratory Experiments
Cheng, Maurice M. W.; Gilbert, John K. – International Journal of Science Education, 2017
This paper proposes a model-based notion of "submicro representations of chemical reactions". Based on three structural models of matter (the simple particle model, the atomic model and the free electron model of metals), we suggest there are two major models of reaction in school chemistry curricula: (a) reactions that are simple…
Descriptors: Science Instruction, Chemistry, Scientific Concepts, Models
Jean, Ming-Der; Jiang, Ji-Bin; Chien, Jia-Yi – European Journal of Engineering Education, 2017
The purpose of this study was to construct the indicators of professional competencies of the nanotechnology-based sputtering system industry based on industry requirements and analyse the core competencies of the industry for promoting the human resource of physical vapour deposition technology. The document analysis, expert interview, and Delphi…
Descriptors: Competence, Engineering Education, Delphi Technique, Foreign Countries
Elsworth, Catherine; Li, Barbara T. Y.; Ten, Abilio – Journal of Chemical Education, 2017
In this letter we present an innovative and cost-effective method of constructing crystal structures using Dual Lock fastening adhesive tape with table tennis (ping pong) balls. The use of these fasteners allows the balls to be easily assembled into layers to model various crystal structures and unit cells and then completely disassembled again.…
Descriptors: Hands on Science, Science Activities, Models, Physical Sciences
Erman, Erman – Journal of Research in Science Teaching, 2017
This study aims to identify students' misconceptions regarding covalent bonds. Seventy-seven graduate students in the middle of Indonesia participated in the study. Data were collected in three stages. First, misconceptions were identified by using the Semi Open Diagnostic Test. Ten students who experienced the worst misconceptions were…
Descriptors: Misconceptions, Chemistry, Science Instruction, Graduate Students