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Lynch, Mark – International Journal of Mathematical Education in Science and Technology, 2012
We continue our study of topological X-rays begun in Lynch ["Topological X-rays and MRI's," iJMEST 33(3) (2002), pp. 389-392]. We modify our definition of a topological magnetic resonance imaging and give an affirmative answer to the question posed there: Can we identify a closed set in a box by defining X-rays to probe the interior and without…
Descriptors: Radiology, Topology, Diagnostic Tests, Body Composition
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George, Robert; Patterson, John – Teaching Science, 2014
Here is a brief history of the work of two of Australia's most famous scientists, Sir William Bragg and his son Sir Lawrence Bragg. Jointly awarded the Nobel Prize in 1915 for their groundbreaking research into the use of X-rays to study the chemical structure and function of molecules, they have contributed to our heritage and to science at…
Descriptors: Physical Sciences, Radiology, Intellectual History, Science Education History
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Ball, Stephen; Cowan, Celsi; Thyfault, John; LaFontaine, Tom – Measurement in Physical Education and Exercise Science, 2014
Skinfold prediction equations recommended by the American College of Sports Medicine underestimate body fat percentage. The purpose of this research was to validate an alternative equation for men created from dual energy x-ray absorptiometry. Two hundred ninety-seven males, aged 18-65, completed a skinfold assessment and dual energy x-ray…
Descriptors: Equations (Mathematics), Human Body, Body Composition, Diagnostic Tests
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Varberg, Thomas D.; Skakuj, Kacper – Journal of Chemical Education, 2015
Here we describe an experiment for the undergraduate physical chemistry laboratory in which students synthesize the intermetallic compounds AlNi and AlNi3 and study them by X-ray diffractometry. The compounds are synthesized in a simple one-step reaction occurring in the solid state. Powder X-ray diffractograms are recorded for the two compounds…
Descriptors: Chemistry, Science Laboratories, Undergraduate Study, College Science
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Zietz, Otto; Mylott, Elliot; Widenhorn, Ralf – Physics Teacher, 2015
Planar x-ray imaging is a ubiquitous diagnostic tool and is routinely performed to diagnose conditions as varied as bone fractures and pneumonia. The underlying principle is that the varying attenuation coefficients of air, water, tissue, bone, or metal implants within the body result in non-uniform transmission of x-ray radiation. Through the…
Descriptors: Radiation, Radiology, Clinical Diagnosis, Scientific Principles
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Kotzé, Sanet Henriët; Driescher, Natasha Darné; Mole, Calvin Gerald – Anatomical Sciences Education, 2013
In a study conducted in 2011, the use of full body digital X-ray images (Lodox® Statscan®) and drawings were described for surface anatomy education during which suggestions were made by students on how to improve the method. Educational innovations should continuously be adjusted and improved to provide the best possible scenario for student…
Descriptors: Anatomy, Followup Studies, Visual Aids, Radiology
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Bond, Charles – Teaching Science, 2014
William Henry Bragg moved from Cambridge in Britain to South Australia to take up a professorship at the University of Adelaide in 1885. He brought with him a broad interest in many areas of physics, but when Wilhelm Roentgen discovered X-rays in the 1890s, Bragg's interest was stimulated. William's Australian-born son, Lawrence (WL…
Descriptors: Physical Sciences, Science Experiments, Science Equipment, Science Education
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Braun, Gregory; Tierney, Dennis; Schmitzer, Heidrun – Physics Teacher, 2011
Rosalind Franklin, a chemical physicist (1920-1958), used x-ray diffraction to determine the structure of DNA. What exactly could she read out from her x-ray pattern, shown in Fig. 1? In lecture notes dated November 1951, R. Franklin wrote the following: "The results suggest a helical structure (which must be very closely packed) containing 2, 3…
Descriptors: Genetics, Women Scientists, Biophysics, Gender Bias
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Crane, Johanna L.; Anderson, Kelly E.; Conway, Samantha G. – Journal of Chemical Education, 2015
This advanced undergraduate laboratory experiment involves the synthesis and characterization of a metal-organic framework with microporous channels that are held intact via hydrogen bonding of the coordinated water molecules. The hydrothermal synthesis of Co[subscript 3](BTC)[subscript 2]·12H[subscript 2]O (BTC = 1,3,5-benzene tricarboxylic acid)…
Descriptors: Science Instruction, Thermodynamics, Spectroscopy, Undergraduate Study
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Hoang, Giang T.; Kubo, Tomohiro; Young, Victor G., Jr.; Kautzky, Jacob A.; Wissinger, Jane E. – Journal of Chemical Education, 2015
Two introductory organic chemistry laboratory experiments are described based on the Diels-Alder reaction of 2,3,4,5-tetraphenylcyclopentadienone, which is synthesized prior to or in a one-pot reaction, with styrene. Students are presented with three possible products, the "endo" and "exo" diastereomers and the decarbonylated…
Descriptors: Organic Chemistry, Science Instruction, Laboratory Experiments, Science Experiments
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Bussey, Katherine A.; Cavalier, Annie R.; Connell, Jennifer R.; Mraz, Margaret E.; Holderread, Ashley S.; Oshin, Kayode D.; Pintauer, Tomislav – Journal of Chemical Education, 2015
An integrated laboratory experiment applying concepts and techniques developed in organic chemistry, inorganic chemistry, and instrumental analysis is presented for use by students interested in undergraduate research. The experiment incorporates some advanced laboratory practices such as multistep organic synthesis and purification, detailed…
Descriptors: Undergraduate Students, College Science, Organic Chemistry, Inorganic Chemistry
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Kotze, Sanet Henriet; Mole, Calvin Gerald; Greyling, Linda Magdalena – Anatomical Sciences Education, 2012
It has been noted by staff at the Faculty of Health Sciences, Stellenbosch University that medical students neglect the study of surface anatomy during dissection. This study reports on the novel use of Lodox[R] Statscan[R] images in anatomical education, particularly the teaching of surface anatomy. Full body digital X-ray images (Lodox Statscan)…
Descriptors: Anatomy, Radiology, Visual Aids, Medical Students
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Campbell, Michael G.; Powers, Tamara M.; Zheng, Shao-Liang – Journal of Chemical Education, 2016
Implementing the case study method in a practical X-ray crystallography course designed for graduate or upper-level undergraduate chemistry students is described. Compared with a traditional lecture format, assigning small groups of students to examine literature case studies encourages more active engagement with the course material and…
Descriptors: Science Instruction, Chemistry, Case Studies, Teaching Methods
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Goodsell, David S. – Biochemistry and Molecular Biology Education, 2012
Data from electron microscopy, X-ray crystallography, and biophysical analysis are used to create illustrations of viruses in their cellular context. This report describes the scientific data and artistic methods used to create three illustrations: a depiction of the poliovirus lifecycle, budding of influenza virus from a cell surface, and a…
Descriptors: Molecular Biology, Microbiology, Science Instruction, College Science
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Pires, Joa~o – Journal of Chemical Education, 2015
A laboratory experiment is described in which a simple characterization of a historical lime mortar is made by the determination of its approximate composition by a gravimetric method. Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) are also used for the qualitative characterization of the lime mortar components. These…
Descriptors: Laboratory Experiments, Program Descriptions, Spectroscopy, Qualitative Research
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