The EJS Radioactive Decay Distribution Model simulates the decay of a radioactive sample using discrete random events. It displays the distribution of the number of events (radioactive decays) in a fixed time interval. If each event is assumed to occur independently and spontaneously with a... Platforms: Mac, Mac OSX

Keyword: Clicking, Compadre, Compiled, Constant, Decay, Distribution, Event, Events, Installed, Interval, Models, Number, Physics, Program, Radioactive, Source

The EJS Cellular Automata (Rule 90) model displays a lattice with any one of a finite number of states which are updated synchronously in discrete time steps according to a local (nearby neighbor) rule. Rule 90 is a specific nearby neighbor rule following the classification scheme developed by... Platforms: Mac, Mac OSX

Keyword: Automata, Cellular, Compadre, Compiled, Distributed, Installed, Itemthe, Model, Modeling, Modelquot, Models, Modify, Nearby, Neighbor, Physics, Quotopen, Readytorun, Simulations, Source

Ridom TraceEdit is a cross-platform graphical DNA trace viewer and editor. TraceEdit displays the chromatogram files from Applied Biosystems automated sequencers and files in the Staden SCF format. Incorrect base calls can be edited and saved. TraceEdit is freely available and designed to operate... Platforms: Mac, Mac OSX

Keyword: Automated, Calls, Diseases, Expect, Files, Formats, Genetic, Genome, Human, Microbial, Molecular, Mutations, Perform, Predisposition, Sequencers, Sequencing, Somatic, Trace, Traceedit

HawaiianNameTranslator is a fun tool that will enable you to view the Hawaiian version of your name or of any person you know. Just type in the name and press Search and you're done! Platforms: Mac, Mac OSX

Keyword: Enable, Hawaiian, Hawaiiannametranslator, Person, Press, Search, Version

How do you know if a chemical equation is balanced? What can you change to balance an equation? Play a game to test your ideas! Sample Learning Goals * Balance a chemical equation. * Recognize that atoms are conserved in a chemical reaction. * Describe the difference between coefficients and... Platforms: Mac, Mac OS X v10.4

Keyword: Atoms, Balance, Balanced, Change, Coefficients, Conserved, Describe, Difference, Equation, Ideassample, Matter, Molecular, Reaction, Recognize, Representations, Subscripts, Symbolic, Translate

Look inside a resistor to see how it works. Increase the battery voltage to make more electrons flow though the resistor. Increase the resistance to block the flow of electrons. Watch the current and resistor temperature change. Platforms: Mac, Mac OS X v10.4

Keyword: Battery, Block, Change, Current, Electrons, Increase, Inside, Resistance, Resistor, Temperature, Voltage, Watch, Works

Play hockey with electric charges. Place charges on the ice, then hit start to try to get the puck in the goal. View the electric field. Trace the puck's motion. Make the game harder by placing walls in front of the goal. This is a clone of the popular simulation of the same name marketed by... Platforms: Mac, Mac OS X v10.4

Keyword: Academic, Carolina, Chabay, Charges, Electric, Field, Front, Marketed, North, Physics, Place, Popular, Puck, Simulation, Software, Start, State, Trace, University, Written

Constraint satisfaction problems (CSPs) are pervasive in AI problems. A constraint satisfaction problem is the problem of assigning values to variables that satisfy some constraints. This tool lets you investigate arc consistency and domain splitting with backtracking as ways to solve these... Platforms: Mac, Mac OSX

Keyword: Assigning, Backtracking, Consistency, Constraint, Constraints, Domain, Investigate, Pervasive, Problem, Problems, Satisfaction, Satisfy, Solve, Splitting, Values, Variables

Explore forces and motion as you push household objects up and down a ramp. Lower and raise the ramp to see how the angle of inclination affects the parallel forces. Graphs show forces, energy and work. Sample Learning Goals * Predict, qualitatively, how an external force will affect the... Platforms: Mac, Mac OS X v10.4

Keyword: Acceleration, Affect, Diagram, Diagrams, Direction, Effects, Explain, Force, Graph, Graphs, Object, Position, Relate, Scenario, Sketch, Speed, Velocity, Versa

This script activates only the columns in a spreadsheet from which the script is run whose column labels are in another spreadsheet specified by the user. Any inactive columns in the other spreadsheet are not used in activating columns in the current spreadsheet. Non-unique columns in the current... Platforms: Mac, Mac OSX

Keyword: Activates, Activating, Column, Columns, Current, Inactive, Labels, Nonunique, Script, Spreadsheet, Supported

The QM Position Expectation Value program displays the time evolution of the position-space wave function and the associated position expectation value. The default wave function is a two-state superposition of infinite square well states. Additional states and other potential energy functions... Platforms: Mac, Mac OSX

Keyword: Clicking, Compiled, Distributed, Eigenstate, Energy, Expansion, Expectation, Found, Function, Mechanics, Physics, Position, Program, Programs, Quantum, Readytorun, Source, States

The GR Embedding program displays a representation of the curvature of space near a massive object. GR Embedding is part of a suite of Open Source Physics programs that model aspects of General Relativity. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the... Platforms: Mac, Mac OSX

Keyword: Additional, Archive, Clicking, Compadre, Compiled, Double, Embedding, Embeddingjar, Found, General, Installed, Physics, Program, Programs, Provide, Relativity, Searching, Source, Visualizations

The EM Radiation program displays the electric field vectors (in the x-y plane) and magnetic field contours (for the field in the z direction) calculated from the Lienard-Wiechert potentials for a charged particle. The default scenario shows the resulting radiation from a charged particle in... Platforms: Mac, Mac OSX

Keyword: Archive, Charged, Compadre, Compiled, Distributed, Double, Electromagnetism, Field, Found, Particle, Physics, Program, Radiation, Readytorun, Searching, Source, Switch, Teaching, Written

The Light and Shadow Model shows light that either passes through a mask with a hole in it, or it is blocked by an object, as it travels to a screen on the right. The user can turn on and off two light bulbs (red and blue) and drag the bulbs around the screen to change their positions.... Platforms: Mac, Mac OSX

Keyword: Andor, Archive, Clicking, Compiled, Created, Distributed, Double, Ejs Light Shadowjar, Installed, Investigate, Modeling, Objectthe, Patterns, Positions, Program, Readytorun, Shadows, Simulations

This page contains curricular materials that I have developed for a course on the Copernican Revolution. The course is intended to satisfy a science requirement for non-science majors. The course explores the historical development of astronomy from the Ancient Greeks to Isaac Newton. The main... Platforms: Mac, Mac OSX

Keyword: Activities, Astronomy, Celestia, Commercial, Computer, Developed, Haven, Night, Planetarium, Program, Scientific, Simulations, Software, Starry, Stellarium

ErmineJ performs analyses of gene sets in expression microarray data or other genome-wide data that results in rankings of genes. A typical goal is to determine whether particular biological pathways are "doing something interesting" in the data. The software is designed to be used by biologists... Platforms: Mac, Mac OSX

Keyword: Analyses, Analysis, Application, Correction, Erminej, Expression, Interface, Method, Multiple, Ontology, Pvalues, Resamplingbased, Results, Scores, Simple, Software, Statistical, Users

This script imports multiple fields of data from Illumina Final Report text files. It can be used to just import genotype data, or multiple real-valued columns such as B-Allele Frequency, or Log R Ratios. The user can choose from all fields found in the text file and select which ones should be... Platforms: Mac, Mac OSX

Keyword: Allele, Choose, Column, Combined, Created, Dataset, Field, Fields, Files, Filter, Genotype, Genotypes, Import, Imported, Multiple, Score, Separate

This script creates 5 transposed spreadsheets, one for each column imported from the MIP Array copy number text file: Copy A, Copy B, CopyNumber, AlleleRatio, and AllelicDifference. Platforms: Mac, Mac OSX

Keyword: Alleleratio, Allelicdifference, Array, Column, Copy, Copynumber, Creates, Imported, Number, Script, Spreadsheets, Transposed

BioTapestry is designed around the concept of a developmental network model, and is intended to deal with large scale models with consistency and clarity. It is capable of representing systems that exhibit increasing complexity over time, such as the genetic regulatory network controlling... Platforms: Mac, Mac OSX

Keyword: Clarity, Complexity, Concept, Controlling, Designed, Development, Developmental, Embryos, Endomesoderm, Exhibit, Genetic, Increasing, Intended, Model, Network, Regulatory, Representing, Systems, Urchin

DNA is a Java-based application for qualitative category-based content analysis. It serves two purposes: coding statements of actors into categories, and converting these structured data into networks that are readable by UCINET, visone and other network-analytic software packages. The software... Platforms: Mac, Mac OSX

Keyword: Analysis, Application, Applied, Convert, Developed, Document, Documents, Graphsthe, Large, Manual, Networks, Project, Rendering, Representation, Single, Software