# License and Attributions

This project, **Arabic Spine Atlas (أطلس العمود الفقري)**, is distributed under the **Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0)**.

To view a copy of this license, visit:
https://creativecommons.org/licenses/by-sa/4.0/

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## Attributions & Upstream Sources

The 3D anatomical models and base data in this application are derived from:

1. **BodyParts3D**
   - Source: Database Center for Life Science (DBCLS), Japan
   - License: Creative Commons Attribution-ShareAlike 2.1 Japan (CC BY-SA 2.1 JP)
   - Original Author: Kousaku Okubo
   - URL: https://dbarchive.biosciencedbc.jp/en/bodyparts3d/download.html

2. **Z-Anatomy**
   - Source: Z-Anatomy — The libre 3D atlas of anatomy
   - License: Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
   - Authors:
     - Gauthier Kervyn (Design, 3D Modeling, Anatomy)
     - Marcin Zielinski (Blender Add-on & Data Pipeline)
     - Lluis Vinent (Unity Development)
   - URL: https://www.z-anatomy.com / https://github.com/Z-Anatomy/Models-of-human-anatomy

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## Derivative Work Modifications

This work is an adapted derivative under CC BY-SA 4.0 with the following modifications:
- Extraction of the isolated human vertebral column (26 articulated bones and 23 intervertebral cartilaginous discs; 49 anatomical structures in total).
- Draco geometric compression applied for real-time mobile and web rendering.
- Creation of an interactive Three.js 3D web application with anatomical isolation, removal simulation, and physiological effect demonstrations.
- Original Arabic educational labels, pedagogical teacher explanations, and Egyptian dialect voice scripts crafted for Egyptian 3rd Secondary biology curriculum alignment.
- RTL Arabic user interface design and typography.