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What is step or phace factor? 


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The Steps Model emphasizes key components for successful community-engaged research, focusing on trust building, mutually beneficial outcomes, and clear impact metrics . On the other hand, the PHACE system is a low-cost tool developed for evaluating volumetric and morphological changes in the periorbital region and ocular adnexa, particularly useful in cases of oculofacial trauma or aging processes . These two concepts, the Steps Model and the PHACE system, represent different approaches in research and healthcare. While the Steps Model guides the process of community engagement and impact assessment, the PHACE system provides a practical solution for objective monitoring of anatomical changes. Both models contribute to enhancing research outcomes and improving community health over time.

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Step or PHACE factor refers to the optimized workflow using a low-cost, automated photogrammetry system for precise volumetric and morphological analysis of periocular and adnexal tissue changes.
Step factor refers to the process in the prime factor algorithm where a one-dimensional DFT is transformed into a multidimensional DFT using short DFTs with mutually prime lengths.
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