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Articles 1 - 17 of 17
Full-Text Articles in Physical Sciences and Mathematics
Directed Panspermia. 3. Strategies And Motivations For Seeding Star-Forming Clouds, Michael Noah Mautner
Directed Panspermia. 3. Strategies And Motivations For Seeding Star-Forming Clouds, Michael Noah Mautner
Chemistry Publications
Microbial swarms aimed at star-forming regions of interstellar clouds can seed stellar associations of 10 - 100 young planetary systems. Swarms of millimeter size, milligram packets can be launched by 35 cm solar sails at 5E-4 c, to penetrate interstellar clouds. Selective capture in high-density planetary accretion zones of densities > 1E-17 kg m-3 is achieved by viscous drag. Strategies are evaluated to seed dense cloud cores, or individual protostellar condensations, accretion disks or young planets therein. Targeting the Ophiuchus cloud is described as a model system. The biological content, dispersed in 30 μm, 1E-10 kg capsules of 1E6 freeze-dried microorganisms …
Math, Science And Adventures In Space, K. Thornton
Math, Science And Adventures In Space, K. Thornton
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
On The Relationships Between Mathematics And Science In Schools, Z. Usiskin
On The Relationships Between Mathematics And Science In Schools, Z. Usiskin
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Using Graphing Calculators To Integrate Mathematics And Science, J. Garofalo, F. Pullano
Using Graphing Calculators To Integrate Mathematics And Science, J. Garofalo, F. Pullano
Journal of Mathematics and Science: Collaborative Explorations
The computational, graphing, statistical and programming capabilities of today’s graphing calculators make it possible for teachers and students to explore aspects of functions and investigate real-world situations in ways that were previously inaccessible because of computational constraints. Many of the features of graphing calculators can be used to integrate topics from mathematics and science. Here we provide a few illustrations of activities that use the graphing, parametric graphing, regression, and recursion features of graphing calculators to study mathematics in science contexts.
Developing Mathematics Enrichment Workshops For Middle School Students: Philosophy And Sample Workshops, H. Keynes, A. Olson, K. Singer
Developing Mathematics Enrichment Workshops For Middle School Students: Philosophy And Sample Workshops, H. Keynes, A. Olson, K. Singer
Journal of Mathematics and Science: Collaborative Explorations
This paper describes our approach to organizing enrichment activities using advanced mathematics topics for diverse audiences of middle school students. We discuss our philosophy and approaches for the structure of these workshops, and then provide sample schedules and resource materials. The workshops cover activities on the following topics: Graphing Calculators; The Chaos Game; Statistical Sampling; CT Scans–the reconstruction problem; The Platonic and Archimedean solids; The Shape of Space; Symmetry; The Binary Number System and the game of NIM; Graph Theory: Proof by Counterexample.
Solving Problems Involving Hamilton Circuits, T. Wainwright
Solving Problems Involving Hamilton Circuits, T. Wainwright
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Educational Research Abstracts, G. Bass Jr.
Educational Research Abstracts, G. Bass Jr.
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Aims & Scope
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
One Hour Of Chemical Demonstrations, S. Solomon, M. Oliver-Hoyo, J. Tian, B. Brook
One Hour Of Chemical Demonstrations, S. Solomon, M. Oliver-Hoyo, J. Tian, B. Brook
Journal of Mathematics and Science: Collaborative Explorations
This article describes a diverse set of chemistry demonstrations especially selected to encourage student interaction and to be easily transported. The demonstrations may be presented at a level that can be tailored to any audience– from very young children to high school students planning careers in science. An ideal environment is a small classroom with 20-30 students where everyone can take part in the discussion. Once the chemicals are prepared, the collection of demonstrations takes about ten minutes to set-up, and one hour (or less) to perform. Very little is needed at the visiting site, no more than a table …
Structure And Magnetism Of Multiphase Sm0.080co0.645fe0.276 Powders, V. G. Harris, M. Liou, B. N. Das, V. M. Browning, J. E. Snyder, M. Rubinstein, S. H. Lawrence, R. Littleton Iii, D. P. Pappas
Structure And Magnetism Of Multiphase Sm0.080co0.645fe0.276 Powders, V. G. Harris, M. Liou, B. N. Das, V. M. Browning, J. E. Snyder, M. Rubinstein, S. H. Lawrence, R. Littleton Iii, D. P. Pappas
Physics Publications
A Sm-poor mixture of Fe-substituted Sm2Co17, having the nominal stoichiometry of Sm0.080Co0.645Fe0.276, was ball-milled to explore the possibility of enhancing its remanence through direct microstructural refinement. With milling, the Sm2(Co0.7Fe0.3)17 compound disassociates to a body-centered-cubic supersaturated SmCoFe solid solution and a residual SmCoFe amorphous phase. Correspondingly, the coercive field values first increase, peaking at 0.83 kOe after 180 min of milling, then decrease with continued milling to
Random Processes With Convex Coordinates On Triangular Graphs, J. N. Boyd, P. N. Raychowdhury
Random Processes With Convex Coordinates On Triangular Graphs, J. N. Boyd, P. N. Raychowdhury
Mathematics and Applied Mathematics Publications
Probabilities for reaching specified destinations and expectation values for lengths for random walks on triangular arrays of points and edges are computed. Probabilities and expectation values are given as functions of the convex (barycentric) coordinates of the starting point.
Mathematics For General Education: Another Rule Of Three, G. Rublein
Mathematics For General Education: Another Rule Of Three, G. Rublein
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Title Page
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Atomic And Electronic Structures Of Neutral And Charged Boron And Boron-Rich Clusters, J. Niu, B. K. Rao, P. Jena
Atomic And Electronic Structures Of Neutral And Charged Boron And Boron-Rich Clusters, J. Niu, B. K. Rao, P. Jena
Physics Publications
Ab initio molecular orbital theory based on both density functional formalism and quantum chemical methods has been used to calculate the equilibrium geometries, binding energies, ionization potentials, fragmentation patterns, and electronic structures of neutral and charged boron clusters containing up to six atoms. Calculations have also been performed on restricted geometries for BnX (n=1,5,12; X=Be, B, C) and B20 clusters to see if clusters can be designed so as to increase their stability. Energetics of doubly chargedB++n clusters have also been studied to find the critical size for Coulomb explosion. The results are compared with existing experimental and theoretical data.
Contents
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Journal Of Mathematics And Science: Collaborative Explorations
Journal Of Mathematics And Science: Collaborative Explorations
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Student Work Section, R. Howard
Student Work Section, R. Howard
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.