Open Source Mac Scientific/Engineering Software

Skim is a PDF reader and note-taker for OS X. It is designed to help you read and annotate scientific papers in PDF, but is also great for viewing any PDF file. Skim requires OS X 10.10 or higher.

A programmable audio generator intended as an aural aid to meditation, implementing the binaural beat principle as described in Gerald Oster's Oct. 1973 Scientific American article "Auditory Beats in the Brain."

DEAS provides Data Envelopment Analysis tools for Stata. Version 2.0 is a major update centered on a unified dea command for Stata 16 or later. It consolidates sixteen DEA model families into one interface, keeps backward compatibility with the original inputs = outputs syntax, and adds a fast Mata two-phase revised simplex engine alongside Stata's LinearProgram() IPM engine. The package supports radial technical efficiency (CCR/BCC), SBM, additive model, radial and SBM super-efficiency, multiplier form, directional distance function, cost, revenue, profit, allocative efficiency, FDH, imprecise DEA, undesirable outputs, SBM with undesirable outputs, and congestion analysis. Extension commands provide Malmquist productivity index, window analysis, network DEA, cross-efficiency, bootstrap DEA, fuzzy DEA, and research-oriented game-theoretic DEA diagnostics. The release includes Stata help files, an OECD education application, and forthcoming Stata article and supplement materials.

Docear (pronounced dog-ear) is what we call an “academic literature suite”. It integrates everything you need to search, organize and create academic literature in a single application: a digital library, reference manager, PDF and file manager, note taking and mind mapping. And the best: Docear works seemlessly with many existing tools like Mendeley, Microsoft Word, and Foxit Reader. Docear is free and open source, based on Freeplane, funded by the German Federal Ministry of Technology and developed by scientists from around the world, among others from OvGU, and the University of California, Berkeley.

A Sequenced Binaural Wave Generator for Linux+Windows. May be used to generate sounds that entrain the brain's waves to oscillate at selected frequencies to aid in relaxation, lucid dreaming, meditation, clear thought, out-of-body experiences + more

CERCA is an open-source research tool that supports the verification of bibliographic references in scientific manuscripts. It extracts references from PDF files and checks their existence and consistency against authoritative metadata sources, producing explainable diagnostics, audit logs, and reproducible reports. It is intended for: - Researchers performing final manuscript checks - Reviewers assessing reference consistency - Editors supporting editorial quality control - Meta-research and reproducibility workflows CERCA is an experimental tool. It does not replace manual verification. CERCA is a Java desktop application built with JavaFX. To run it, you need a JRE that includes JavaFX, such as Azul Zulu JRE. Developed by: Lidiany Cerqueira, PhD Computer Science Researcher

NoteLab is an advanced "digital notebook" specifically designed for tablet computers. With its stroke smoothing, antialiasing, and "smart rendering," NoteLab provides a beautiful and powerful note taking environment on any operating system.

PROFESSIONAL HYDRAULIC CALCULATIONS A reliable engineering application created for designers, mechanics, and machine technicians. Perform precise technical calculations instantly, completely securely, and without ads.

K people is a software platform capable of integrating with enterprise systems. It enables workers to improve productivity, while giving management the the means to plan and monitor activity.

Multiplication Station will teach your child to add, subtract and multiply. All parameters configurable, like grid size and number ranges fonts and colors. Countdown timer keeps attention focused. High scores too.

The Rise and Shine LED clock has been designed to educate and encourage hacking and modifying of both software and hardware. This is a analogue style digital clock with multiple display states, a 24 hour alarm, a count down alarm, multiple alarm display states and a demo mode. One of the alarm states is a dawn simulating alarm, where the lights gradually come on over 20 minutes, enducing a natural waking sleeping pattern, with out the shock of a abrupt noisy alarm sound. Hence the name "Rise and Shine", although the name also works well with the educational objectives.

TouchFlow Pro is a high-performance typing training platform designed for Medical, Legal, and Tech professionals. Breaking the "OK Plateau" requires more than games; it requires data-driven drills, kinesthetic memory encoding, and real-time fatigue monitoring. Our engine tracks your burst-to-drift ratio to detect cognitive fatigue before your error rate spikes, ensuring every minute of practice is high-quality. Perfect for specialists who rely on their hands for their livelihood.

A tag based personal note taking system, written in python using sqlite. This program is designed to help you organize your thoughts. It uses tags in a way similar to Gmail's "labels" or del.icio.us tags. Any contribution welcome!