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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

Showing 1 to 15 of 398 results
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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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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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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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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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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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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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Menneer, Tamaryn; Stroud, Michael J.; Cave, Kyle R.; Li, Xingshan; Godwin, Hayward J.; Liversedge, Simon P.; Donnelly, Nick – Journal of Experimental Psychology: Applied, 2012
Searching simultaneously for metal threats (guns and knives) and improvised explosive devices (IEDs) in X-ray images is less effective than 2 independent single-target searches, 1 for metal threats and 1 for IEDs. The goals of this study were to (a) replicate this dual-target cost for categorical targets and to determine whether the cost remains…
Descriptors: National Security, Visual Perception, Eye Movements, Reaction Time
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Gupta, Vipul; Ganegoda, Hasitha; Engelhard, Mark H.; Terry, Jeff; Linford, Matthew R. – Journal of Chemical Education, 2014
The traditional assignment of oxidation states to organic molecules is problematic. Accordingly, in 1999, Calzaferri proposed a simple and elegant solution that is based on the similar electronegativities of carbon and hydrogen: hydrogen would be assigned an oxidation state of zero when bonded to carbon. Here, we show that X-ray photoelectron…
Descriptors: Organic Chemistry, Spectroscopy, Scientific Concepts, Physics
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Palmer, Peter T. – Journal of Chemical Education, 2011
Portable Energy-Dispersive X-Ray Fluorescence (XRF) analyzers have undergone significant improvements over the past decade. Salient advantages of XRF for elemental analysis include minimal sample preparation, multielement analysis capabilities, detection limits in the low parts per million (ppm) range, and analysis times on the order of 1 min.…
Descriptors: Chemistry, Science Instruction, Spectroscopy, Radiology
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Durham, Chaney R.; Chase, Jeffery M.; Nivens, Delana A.; Baird, William H.; Padgett, Clifford W. – Journal of Chemical Education, 2011
X-ray fluorescence (XRF) data from an energy-dispersive XRF instrument were used to investigate the chlorine K[alpha] and K[beta] peaks in several group 1 salts. The ratio of the peak intensity is sensitive to the local chemical environment of the chlorine atoms studied in this experiment and it shows a periodic trend for these salts. (Contains 1…
Descriptors: Chemistry, Science Instruction, Science Experiments, Scientific Concepts
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Shivalingaswamy, T.; Kagali, B. A. – Physics Education, 2011
In deducing the change of wavelength of x-rays scattered by atomic electrons, one normally makes use of relativistic kinematics for electrons. However, recoiling energies of the electrons are of the order of a few keV which is less than 0.2% of their rest energies. Hence the authors may ask whether relativistic formulae are really necessary. In…
Descriptors: Mechanics (Physics), Motion, Physics, Scientific Concepts
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Poeylaut-Palena, Andres, A.; de los Angeles Laborde, Maria – Biochemistry and Molecular Biology Education, 2013
A learning module for molecular level analysis of protein structure and ligand/drug interaction through the visualization of X-ray diffraction is presented. Using DeepView as molecular model visualization software, students learn about the general concepts of protein structure. This Biochemistry classroom exercise is designed to be carried out by…
Descriptors: Introductory Courses, Class Activities, Molecular Structure, Science Activities
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Hughes, Stephen W. – Physics Education, 2010
This article describes a project of unwrapping an ancient Egyptian mummy using x-ray computed tomography (CT). About 600 x-ray CT images were obtained through the mummified body of a female named Tjetmutjengebtiu (or Jeni for short), who was a singer in the great temple of Karnak in Egypt during the 22nd dynasty (c 945-715 BC). The x-ray CT images…
Descriptors: Death, Visual Aids, Foreign Countries, Radiology
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Goodsell, David S. – Biochemistry and Molecular Biology Education, 2010
Diverse biological data may be used to create illustrations of molecules in their cellular context. I describe the scientific results that support a recent textbook illustration of a mitochondrion. The image magnifies a portion of the mitochondrion by one million times, showing the location and form of membranes and individual macromolecules,…
Descriptors: Molecular Biology, Biology, Biochemistry, Science Instruction
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Logiurato, F.; Gratton, L. M.; Oss, S. – Physics Teacher, 2008
In this paper we describe and discuss simple, inexpensive optical experiments used to simulate x-ray and electron diffraction according to the Debye-Scherrer theory. The experiment can be used to address, at the high school level, important subjects related to fundamental quantum and solid-state physics.
Descriptors: Science Instruction, High Schools, Secondary School Science, Optics
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