Jie Zhang

SEP 3, 2026 · PREPRINT

Clean Engineering, Unstable Measurement: A Preregistered Reliability Failure of Black-Box LLM Observers on Shared Endpoints

arXiv

A preregistered audit of measurement reliability in LLM-based evaluation systems, demonstrating systematic failure to meet validity thresholds; methodologically sound but non-peer-reviewed, addressing instrumental rather than clinical validity.

AUG 17, 2026 · PREPRINT

Task Specialization Fine-Tuning for Contextual Reinforcement Learning

arXiv

This is an unrefereed arXiv preprint presenting a novel algorithmic framework for contextual reinforcement learning; it has not undergone peer review.

AUG 14, 2026 · JOURNAL ARTICLE

Anti-Androgenic Potential of Plant Extracts: Molecular Mechanisms, Synergistic Effects, and Nutritional Interventions

Molecules

This is a narrative review synthesizing mechanistic and preclinical evidence on plant extracts and androgen regulation; it identifies research directions rather than reporting new empirical findings or clinical outcomes.

JUL 8, 2026 · JOURNAL ARTICLE

A novel targeted high-throughput workflow for serum chemical mixture profiling in population exposome-wide association studies.

Talanta

This is a methods development study with an observational application in a single cohort; the analytical validation is sound, but the epidemiological findings are exploratory associations without a comparator or causal design.