University of Puerto Rico, Medical Sciences Campus

Crystallizationfor Manufacturing in Microgravity;Are We There Yet?

Abstract Crystallization in microgravity has been extensively investigated because of its potential to enhance crystal quality compared to terrestrial conditions. While early efforts were primarily directed toward single-crystal growth for structural studies, increasing attention...

Systemic Tau and Hierarchical Ordinal Conjunctions: A Relational Theory of Critical Transitions

Foundations paper (English, ~30 pp.) for a dual relational account of critical transitions in complex systems. Systemic Tau (τs) is an ordinal, multivariate measure of cross-variable coupling: sliding-window Kendall-type rank concordance tracks relational coherence rather than th...

Systemic Tau and Hierarchical Ordinal Conjunctions: A Relational Theory of Critical Transitions

Foundations paper (English, ~30 pp.) for a dual relational account of critical transitions in complex systems. Systemic Tau (τs) is an ordinal, multivariate measure of cross-variable coupling: sliding-window Kendall-type rank concordance tracks relational coherence rather than th...

Risk of Permanent Dental Staining Following Exposure to Newer-Generation Tetracycline Derivatives in Children: A Systematic Review and Meta-Analysis

Background/Objectives: Historical concerns regarding permanent dental staining have restricted the use of tetracycline antibiotics in children younger than 8 years. However, newer-generation tetracycline derivatives, particularly doxycycline, differ pharmacologically from first-g...