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Carvalho, Josue´; Queiroz, João A.; Cruz, Carla – Journal of Chemical Education, 2017
Circular dichroism (CD) has emerged as one of the standard biophysical techniques for the study of guaninequadruplex (G4) folding, cation effect, and ligand binding. The utility of this technique is based on its robustness, ease of use, and requirement of only small quantities of nucleic acid. This experiment is also extendable to the classroom…
Descriptors: Science Experiments, Laboratory Experiments, Science Laboratories, Chemistry
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Muthyala, Rajeev S.; Butani, Deepali; Nelson, Michelle; Tran, Kiet – Journal of Chemical Education, 2017
Sense of smell is one of the important senses that enables us to interact with our environment. The molecular basis of olfactory signal transduction is a fascinating area for organic chemistry educators to explore in terms of developing undergraduate laboratory activities at the interface of chemistry and biology. In this paper, a guided-inquiry…
Descriptors: Science Instruction, Organic Chemistry, Scientific Concepts, Science Laboratories
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Albright, Jessica C.; Beussman, Douglas J. – Journal of Chemical Education, 2017
Capillary electrophoresis is an important analytical separation method used to study a wide variety of samples, including those of biological origin. Capillary electrophoresis may be covered in the classroom, especially in advanced analytical courses, and while many students are exposed to gel electrophoresis in biology or biochemistry…
Descriptors: Science Instruction, College Science, Undergraduate Study, Science Laboratories
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Bopegedera, A. M. R. P. – Journal of Chemical Education, 2016
General chemistry and introductory chemistry students were presented with a laboratory exploration for the determination of the mass percent of copper in rock and mineral samples. They worked independently in the laboratory, which involved multiple lab (pipetting, preparing standard solutions by quantitative dilution, recording visible spectra…
Descriptors: Chemistry, Science Instruction, Spectroscopy, Science Laboratories
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Murphy, John J.; Driver, Ross B.; Walsh, Ria; Stephens, John C. – Journal of Chemical Education, 2016
The development of novel, high-yielding, and selective methodologies for the asymmetric synthesis of stereocenters is at the forefront of modern synthetic chemistry research. Organocatalysis can now be viewed as a viable alternative to the use of the sometimes toxic transition-metal catalysts. In this experiment, the simple synthesis of an achiral…
Descriptors: Science Instruction, College Science, Organic Chemistry, Science Laboratories
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Martin, William R.; Davidson, Ada S.; Ball, David W. – Journal of Chemical Education, 2016
In this article, a bomb calorimeter experiment and subsequent calculations aimed at determining the strain energy of the cyclobutane backbone are described. Students use several butanol isomers instead of the parent hydrocarbons, and they manipulate liquids instead of gases, which makes the experiment much easier to perform. Experiments show that…
Descriptors: Science Instruction, Science Laboratories, Laboratory Experiments, Science Experiments
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Parker, Ashley; Slack, Candace; Skoe, Erika – Journal of Speech, Language, and Hearing Research, 2020
Purpose: Miniaturization of digital technologies has created new opportunities for remote health care and neuroscientific fieldwork. The current study assesses comparisons between in-home auditory brainstem response (ABR) recordings and recordings obtained in a traditional lab setting. Method: Click-evoked and speech-evoked ABRs were recorded in…
Descriptors: Neurosciences, Comparative Analysis, Brain Hemisphere Functions, Family Environment
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Schaffner, Sabina – Language Learning in Higher Education, 2020
This paper discusses the potential of language centres in higher education as laboratories for innovation. Despite their hybrid character as central service providers that are also defined by their teaching, their positioning at the academic periphery, and the lack of a mandate to do academic research, language centres still have an obligation to…
Descriptors: Language Laboratories, Resource Centers, Higher Education, Research
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Kvittingen, Lise; Sjursnes, Birte Johanne – Journal of Chemical Education, 2020
An easily constructed and inexpensive polarimeter with an optical rotation angle resolution of about 0.5° is presented. It is made from small pieces of polarizing film, 2 LEDs, a protractor, and a few wires, all held in place with plastic interlocking toy bricks, such as Lego bricks. The instrument was used to demonstrate the optical rotation of…
Descriptors: High School Students, Secondary School Science, Science Activities, Optics
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Aslan, Erhan – Classroom Discourse, 2020
Even though small talk has been investigated in a variety of business contexts and service encounters, it is understudied in instructional settings. This paper explores the occurrence of small talk in a university chemistry lab between a Chinese international teaching assistant (ITA) and American students. Drawing on naturally occurring…
Descriptors: Undergraduate Students, Chemistry, Science Laboratories, Interpersonal Communication
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Bogomolova, Katerina; Hierck, Beerend P.; van der Hage, Jos A.; Hovius, Steven E. R. – Anatomical Sciences Education, 2020
Visual-spatial abilities are considered a successful predictor in anatomy learning. Previous research suggest that visual-spatial abilities can be trained, and the magnitude of improvement can be affected by initial levels of spatial skills. This case-control study aimed to evaluate (1) the impact of an extra-curricular anatomy dissection course…
Descriptors: Anatomy, Laboratory Procedures, Visual Acuity, Spatial Ability
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Pillay, Letitia – Journal of Chemical Education, 2020
Inductively coupled plasma optical emission spectroscopy (ICP-OES) is one of the most commonly used analytical techniques for the measurement of metals in environmental matrices. However, one of the drawbacks of ICP-OES is interference, viz., spectral and nonspectral (due to transport effects) interference. In this simple laboratory experiment,…
Descriptors: Science Experiments, Spectroscopy, Chemistry, Laboratory Experiments
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Cahill, Samuel T.; Bergstrom Mann, Patrick E.; Worrall, Andrew F.; Stewart, Malcolm I. – Journal of Chemical Education, 2020
The COVID-19 pandemic has resulted in a need for social distancing measures in public spaces and will have an important impact on university level teaching going forward. Remote methods to complete laboratory related activities are a potential means of students achieving practical credit while still isolating or social distancing. We outline the…
Descriptors: COVID-19, Pandemics, School Closing, Distance Education
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Perri, M. J. – Journal of Chemical Education, 2020
Students used an Excel spreadsheet and a Jupyter notebook located at https://chemcompute.org/jupyterhub/ to generate data in lieu of face-to-face laboratory instruction during COVID-19. This communication discusses strengths and weaknesses of both exercises. First, students generated absorbance data using an Excel spreadsheet, but they were…
Descriptors: Distance Education, Science Instruction, Chemistry, Spreadsheets
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Qiang, Zhe; Obando, Alejandro Guillen; Chen, Yuwei; Ye, Changhuai – Journal of Chemical Education, 2020
The rapid transition in teaching format due to COVID-19 gives rise to many challenges, especially for research and lab activities since they may require a different approach with more constrained resources compared with lecture-based courses, in which various virtual communication platforms have now been employed. As essential parts for student's…
Descriptors: COVID-19, Pandemics, Distance Education, Online Courses
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