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Showing 2,356 to 2,370 of 2,813 results Save | Export
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Raghevendran, Vijayendran; Nielsen, Jens; Olsson, Lisbeth – Biochemistry and Molecular Biology Education, 2005
The yeast "Saccharomyces cerevisiae" has been used by human beings since ancient times for its ability to convert sugar to alcohol. Continual exposure to glucose in the natural environment for innumerable generations has probably enabled "S. cerevisiae" to grow in fermentative mode on sugars by switching off the genes responsible for respiration…
Descriptors: Undergraduate Students, Physiology, Student Research, Microbiology
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Casey, Ryan E.; Pittman, Faith A. – Journal of Chemical Education, 2005
A module that can be incorporated into chemistry or environmental science classes at the high school or undergraduate level is described. The module is divided into a series of segments, each of which incorporates several concepts and results in students making significant predictions about the behavior of organic xenobiotics.
Descriptors: Environmental Education, Organic Chemistry, Learning Modules, Molecular Structure
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Skamp, Keith – Primary Science Review, 2005
If teachers decide to introduce the idea that the behaviour of matter ("stuff") can be explained by thinking about it as being made up of particles that exhibit particular properties, then they need to be aware of the learning difficulties involved. Before using this approach, therefore, more immediate consideration needs to be directed…
Descriptors: Science Instruction, Elementary School Science, Scientific Concepts, Molecular Structure
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Mershin, Andreas; Pavlopoulos, Elias; Fitch, Olivia; Braden, Brittany C.; Nanopoulos, Dimitri V.; Skoulakis, Efthimios M. C. – Learning & Memory, 2004
Mutations in the neuronal-specific microtubule-binding protein TAU are associated with several dementias and neurodegenerative diseases. However, the effects of elevated TAU accumulation on behavioral plasticity are unknown. We report that directed expression of wild-type vertebrate and "Drosophila" TAU in adult mushroom body neurons, centers for…
Descriptors: Memory, Entomology, Dementia, Neurological Impairments
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Wiltgen, Brian J.; Sanders, Matthew J.; Ferguson, Carolyn; Homanics, Gregg E.; Fanselow, Michael S. – Learning & Memory, 2005
The [delta] subunit of the GABA[subscript [Alpha]] receptor (GABA[subscript [Alpha]]R) is highly expressed in the dentate gyrus of the hippocampus. Genetic deletion of this subunit reduces synaptic and extrasynaptic inhibition and decreases sensitivity to neurosteroids. This paper examines the effect of these changes on hippocampus-dependent trace…
Descriptors: Conditioning, Inhibition, Fear, Animals
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Cox, Anne J.; Belloni, Mario; Dancy, Melissa; Christian, Wolfgang – Physics Education, 2003
This paper describes the use of interactive, Physlet[R]-based curricular material designed to help students learn concepts of thermodynamics with a particular focus on the use of kinetic theory models. These exercises help students visualize ideal gas particle dynamics and engine cycles, make concrete connections between mechanics and…
Descriptors: Mechanics (Physics), Internet, Thermodynamics, Science Instruction
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Bottomley, Steven; Chandler, David; Morgan, Eleanor; Helmerhorst, Erik – Biochemistry and Molecular Biology Education, 2006
A new computer-based molecular visualization tool has been developed for teaching, and learning, molecular structure. This java-based jmol Amalgamated Molecular Visualization Learning Environment (jAMVLE) is platform-independent, integrated, and interactive. It has an overall graphical user interface that is intuitive and easy to use. The…
Descriptors: Visualization, Educational Environment, Molecular Structure, Biotechnology
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Woodworth, Jennifer K.; Terrance, Jacob C.; Hoffmann, Markus M. – Journal of Chemical Education, 2006
A laboratory experiment is presented for the upper-level undergraduate physical chemistry curriculum in which the ternary phase diagram of water, 1-propanol and n-heptane is measured using proton nuclear magnetic resonance (NMR) spectroscopy. The experiment builds upon basic concepts of NMR spectral analysis, typically taught in the undergraduate…
Descriptors: Spectroscopy, Thermodynamics, Organic Chemistry, Laboratory Experiments
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Cortes-Figueroa, Jose E.; Moore-Russo, Deborah A. – Journal of Chemical Education, 2006
The kinetics experiments on the ligand-C[subscript 60] exchange reactions on (dihapto-[60]fullerene) pentacarbonyl tungsten(0), ([eta][superscript 2]-C[subscript 60])W(CO)[subscript 5], form an educational activity for the inorganic chemistry laboratory that promotes graphical thinking as well as the understanding of kinetics, mechanisms, and the…
Descriptors: Learning Activities, Kinetics, Inorganic Chemistry, Thermodynamics
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Cooper, Scott; Hanmer, Deborah; Cerbin, Bill – American Biology Teacher, 2006
We studied the effect of formative assessment and feedback on learning. Students produced phylogenetic trees based upon morphological and molecular data. The trees were projected in class, feedback provided, and the process repeated twice with new data. Assessment revealed that these in-class modules resulted in significant improvement in student…
Descriptors: Feedback, Formative Evaluation, Problem Solving, Learning Modules
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Hands, R. A. – School Science Review, 1975
Describes the use of disc or ring magnets magetized axially and iron discs, in conjunction with an overhead projector, as a model of nuclear structure and of complete molecules. (GS)
Descriptors: Chemistry, Demonstrations (Educational), Instruction, Models
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Bennett, Alice S.; Schwenk, Karl – American Biology Teacher, 1974
Describes how to use the distinctive properties of osazone formation in conjunction with molecular model construction to demonstrate the relationship between the three-dimensional structures of simple sugars and the shapes of crystals they form. (BR)
Descriptors: Biology, Chemical Reactions, College Science, Instructional Materials
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Reedijk, J.; And Others – Education in Chemistry, 1975
Describes an experiment, for the general chemistry laboratory, intended to introduce the student to infrared spectroscopy. After being introduced to the theory of molecular vibrations on an elementary level, each student receives a list of 5-7 nickel (II) ammines to be prepared, analyzed and characterized by infrared spectoscopy. (MLH)
Descriptors: Chemical Analysis, Chemistry, College Science, Coordination Compounds
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Mason, Joan – Journal of Chemical Education, 1975
Describes an experiment designed for second-level summer school chemistry students enrolled in Great Britain's Open University. (GS)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, College Science
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Ellis, Jerry W.; Buchanan, David H. – Journal of Chemical Education, 1975
Descriptors: Chemical Analysis, Chemistry, College Science, Higher Education
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