Conserved

This interactive simulation allows students to collide two objects and investigate whether momentum and/or kinetic energy are conserved in the collision process. To keep things simple, the simulation involves an isolated system where the objects collide along a single line. Use the sliders to set... Platforms: Mac

VCMap, also known as The Virtual Comparative Map was developed in order to explore the conserved synteny between Rat, Mouse and Human. Genomes and annotations of additional species (Chicken, Cow, and Pig) were added to the database of information accessible to VCMap. VCMap was developed with... Platforms: Windows

IGBM (Identification of gene blocks in microorganisms) implements a BLAST-like method to infer conserved gene clusters among closely related prokaryotes, and provides a graphical user interface to navigate the identified clusters and their annotated info Platforms: Windows, Mac, Solaris, Linux

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

This is a standards-based simulation for grade level 6-9, developed to help students visualize how total energy is conserved in a simple pendulum. It depicts a child swinging on a swing suspended from a stationary point. Students can drag the swing to different heights, then activate the motion.... Platforms: Mac

Investigate collisions on an air hockey table. Set up your own experiments: vary the number of discs, masses and initial conditions. Is momentum conserved? Is kinetic energy conserved? Vary the elasticity and see what happens. * Draw "before-and-after" pictures of collisions. * Construct... Platforms: Mac

The Lennard-Jones PVT System simulates a two-dimensional system of particles confined between a thermal reservoir and a piston. This computer model is designed to study the equation of state for particles interacting via a simple but realistic molecular potential that has a weak long-range... Platforms: Mac

The Hard Disk PVT System simulates a two-dimensional system of particles confined between a thermal reservoir and a piston. This computer model is designed to study the equation of state for hard disks without other interactions. Slow-moving particles are color-coded as blue and fast particles... Platforms: Mac

libferris makes the file system and other hierarchical storage systems easier to use.Other than mounting things as a filesystem, the other core concept of libferris is extraction of interesting metadata from your libferris filesystems. This means that simple things like width and height of an... Platforms: Windows, Mac, *nix, C/C++, BSD Solaris

ferrisfuse is a FUSE module for mounting libferris filesystems through the Linux kernel. About libferris In non technical terms libferris makes the file system and other hierarchical storage systems easier to use. For the geeks out there, libferris is a virtual file system (VFS) that runs in... Platforms: *nix

The Drug Design and Optimization Lab (D2OL)¬ works to discover drug candidates against Anthrax, Smallpox, Ebola, SARS and other potentially devastating infectious diseases. By simply downloading a no-cost, non-intrusive software application, you can contribute the idle time available on your... Platforms: Mac

ncRNA Mapper is a computer program that gives more insight in the localization of sequencing fragments. Given that sequencing of RNA gives reads at fixed base-positions, ncRNA Mapper analyzes the alignments (generated by Short Sequence Location Mapper; SSLM) by: visualizing them, retrieving the... Platforms: Windows

Molecular-based diagnostic assays are the gold standard for infectious diseases today, since they allow a rapid and sensitive identification and typing of various pathogens. While PCR can be designed to be specific for a certain pathogen, a subsequent sequence analysis is frequently required... Platforms: Windows

Sleeper is a small utility program developed by PassMark Software to help test the ability of PC systems to enter and recover from sleep and hibernation. It has been designed to work with PassMark BurnInTest but will also work with 3rd party applications. Sleeper allows you to, * Put a PC into... Platforms: Windows

FOX is a C++ based Toolkit for developing Graphical User Interfaces easily and effectively. It offers a wide, and growing, collection of Controls, and provides state of the art facilities such as drag and drop, selection, as well as OpenGL widgets for 3D graphical manipulation. FOX also... Platforms: Windows, Linux

PanOCT, Pan-genome Ortholog Clustering Tool, is a program written in PERL for pan-genomic analysis of closely related prokaryotic species or strains. Unlike traditional graph-based ortholog detection programs, it uses micro synteny or conserved gene neighborhood (CGN) in addition to homology to... Platforms: Mac, Linux

Qdig is an easy-to-use PHP script that dynamically presents your digital image files as an online gallery or set of galleries. Qdig is a simple but flexible one-file script. It's easy to install and galleries are easy to organize and manage using your favorite FTP or SCP file management program.... Platforms: Windows, Mac, *nix, PHP, BSD Solaris

The simulation shows two marbles colliding in a perfect elastic collision, showing how momentum is conserved. Graphs of the velocities and momenta of both marbles are shown. The user can change the mass of either marble and the initial velocity of one of the marbles. This simulation was... Platforms: Mac

The EJS Molecular Dynamics model is constructed using the Lennard-Jones potential truncated at a distance of 3 molecular diameters. The motion of the molecules is governed by Newton's laws, approximated using the Verlet algorithm with the indicated time step. For sufficiently small time steps dt,... Platforms: Mac

The EJS Molecular Dynamics Demonstration model is constructed using the Lennard-Jones potential truncated at a distance of 3 molecular diameters. The motion of the molecules is governed by Newton's laws, approximated using the Verlet algorithm with the indicated Time step. For sufficiently small... Platforms: Mac