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Munukutla, Srikar; Bertoy, Alec; Rush, Stephen; Ramamoorthy, Ayyalusamy – Journal of Chemical Education, 2022
The NMR spectrometer is a commonly used spectroscopic instrument that records resonance frequencies of nuclei present in molecular systems. While the NMR frequencies fall within the radio frequency regime for a given molecular system, they are presented in terms of chemical shifts in the audio frequency regime, thereby having the versatility to be…
Descriptors: Spectroscopy, Molecular Structure, Chemistry, Music
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Greenslade, Thomas B., Jr. – Physics Teacher, 2022
This article is about a famous physics course taken by thousands of students at Amherst College in the 1950s, designed and taught by its distinguished instructor, Arnold B. Arons. There are very few of us left who have taken the course. The youngest one would be, as the course was discontinued in 1968, about 72 years old!
Descriptors: College Science, Physics, Educational History, College Faculty
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Sharpe, J. P.; Yee, C. – Physics Teacher, 2021
The Young's two-slits experiment is arguably one of the most famous and beautiful experiments in physics. In introductory physics labs the experiment is almost exclusively carried out using a laser, and it is introduced this way in some introductory physics textbooks. In the case of laser illumination, light passes directly through the slits and…
Descriptors: Science Experiments, Physics, Introductory Courses, College Science
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Lee, Ilbong; Hwang, Ilha; Mukhopadhyay, Rahul Dev; Kim, Kimoon – Journal of Chemical Education, 2022
The formation of chemical patterns is in general difficult to control due to the random diffusive motions of the reacting chemical species in solution. In this paper, we present a new method using audible sound to control the formation of chemical patterns obtained in blue bottle experiments. The waves generated on the surface of the solution by…
Descriptors: Chemistry, Acoustics, Science Experiments, Science Instruction
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Pence, Harry E.; Pence, Laura E. – Journal of Chemical Education, 2022
Nationally, as the chemical community aspires to become more diverse, it is essential to make students of all races, ethnicities, gender expressions, and physical abilities feel welcomed and represented in the introductory courses in the field. One way to accomplish this goal is to present examples of scientists who are not traditionally included…
Descriptors: Chemistry, Introductory Courses, College Science, Diversity
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De Micheli, Andrea J.; Valentin, Thomas; Grillo, Fabio; Kapur, Manu; Schuerle, Simone – Journal of Chemical Education, 2022
Natural sciences can be difficult to grasp because physical and chemical phenomena can take place across time and length scales that are beyond the reach of human perception. This problem is particularly true for students attempting to learn about microfluidics, a discipline that involves intricate engineering methods and fluid phenomena that are…
Descriptors: Computer Simulation, Chemistry, Laboratory Training, College Science
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Dessent, Caroline E. H.; Dawood, Ruhee A.; Jones, Leonie C.; Matharu, Avtar S.; Smith, David K.; Uleanya, Kelechi O. – Journal of Chemical Education, 2022
Discussions on decolonizing the curriculum are common in Humanities and Social Science Faculties but still rare in the Physical Sciences. In this commentary, we describe the work we have conducted to begin decolonizing and diversifying our undergraduate chemistry curriculum. We also discuss what it means to decolonize chemistry and reflect on why…
Descriptors: College Science, Chemistry, Undergraduate Study, Equal Education
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Basu, Partha; Deiss, Frédérique; Long, Eric C. – Journal of Chemical Education, 2022
A time- and cost-effective strategy aimed at increasing awareness of diversity, equity, inclusion, respect (DEIR), safety, and other issues within a typical graduate program is described. Using a brief portion of time (up to [approximately]10 min) at the commencement of each weekly departmental colloquium event, graduate students under faculty…
Descriptors: Diversity, Equal Education, Inclusion, Safety
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Filgueiras, Matheus Fernandes; Borges, Endler Marcel – Journal of Chemical Education, 2022
Students quantified the protein content in beer, milk, powdered milk, and whey protein using the Bradford assay. The assay was carried out using absorbance measured at 595 nm (standard method) and 96-well-plate images (proposed method). They built analytical curves using bovine serum albumin (BSA) and casein and determined that protein type…
Descriptors: Chemistry, Color, Visual Aids, Science Instruction
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Li, Tiandong; Zhu, Ruotong; Jin, Huilin; Yang, Hongchun; Wu, Minghe; Teng, Baohua – Physics Teacher, 2021
At the undergraduate level, the composite motion of simple harmonic vibrations has always been the main content of physics as well as several other scientific disciplines. Many textbooks tell us clearly that when the frequency ratio [omega][subscript 1]/[omega][subscript 2] of two perpendicular vibrations is simple integer ratio n[subscript…
Descriptors: Physics, Scientific Concepts, Motion, College Science
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Forringer, Edward – Physics Teacher, 2021
When authoring physics problems, professors may develop an intuition for how much information they need to provide such that the problem has a unique answer and is not over constrained. It is an open question as to whether using intuition leads to a sufficiently broad range of problems. In this paper we discuss a systematic way of authoring…
Descriptors: Motion, Physics, Science Instruction, College Science
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Stephens, Isaiah O.; Thomas, Elizabeth M. – Journal of Chemical Education, 2022
Apurinic/apyrimidinic (AP or abasic) sites are deoxyribonucleic acid (DNA) lesions that result from the loss of a nucleobase by hydrolysis of the "N"-glycosyl bond. AP sites are the most frequent lesions in cells and are caused by environmental and cancer therapeutic genotoxins. Herein, the bicinchoninic colorimetric assay, typically…
Descriptors: Science Instruction, Chemistry, Genetics, Undergraduate Study
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Yao, Bo; Sun, Danyang; Ren, Yongan; Wang, Min – Journal of Chemical Education, 2022
Quantitative analysis in analytical chemistry is divided into semi-,relative, and absolute analysis. An example of each analysis is pH test paper, internal standard, and standard addition, respectively. However, their definition and differences have not yet been explained to students sufficiently in classes as well as textbooks. Polymerase chain…
Descriptors: College Science, Science Instruction, Graduate Students, College Seniors
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Manos, Harry – Physics Teacher, 2022
"Ulysses" by James Joyce (1882-1941) has a surprising amount of 19th-century, classical physics. The physics community is familiar with the name James Joyce mainly through the word "quark" (onomatopoeic for the sound of a duck or seagull), which Murray Gell-Mann (1929-2019 -- Physics Nobel Prize 1969) sourced from Joyce's…
Descriptors: Novels, Classics (Literature), Literature Appreciation, Physics
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Ji, Xuan; Liu, Xiaomei; Li, Muzi; Shao, Songxue; Chang, Jing; Du, Jing; Ma, Xiaofei; Feng, Xia; Zhu, Lina; Yu, Xi; Hu, Wenping – Journal of Chemical Education, 2021
As simple and ubiquitous redox-active organic molecules, quinones participate in diverse electron transfer processes in chemistry and biological systems for energy transformation and signal transduction. We introduce here a practical exercise to study the redox potentials of benzoquinone and its two derivatives by combining the electrochemistry…
Descriptors: Chemistry, Computation, Energy, Thermodynamics
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