Romanian Academy

Spectral sequences, Massey products and homology of covering spaces

Abstract We revisit the equivariant spectral sequence considered by Papadima–Suciu, and show that all its differentials are computed by higher order Massey products. As a first application, we extend to arbitrary field coefficients results of Pajitnov relating the size of Jordan...

Traceability and Health Risk Assessment in the Feed–Animal–Milk Chain: A Comparative Evaluation of Traditional and Industrial Dairy Systems in Romania

Cow milk and dairy products may reflect environmental elemental inputs transferred through the feed–animal–milk chain. This study investigated the elemental traceability, regional differentiation, dairy processing effects, and dietary exposure associated with milk and dairy produ...

The Cost of the Cure: Antibiotic Exposure as a Risk Factor for Irritable Bowel Syndrome

The intricate interplay between the gut microbiome and the enteric nervous system remains a paramount focus in understanding the multifactorial pathogenesis of disorders of gut–brain interaction (DGBI), most notably irritable bowel syndrome (IBS). While the clinical entity of pos...

Sustainable Corrosion Mitigation Using Aqueous Spent Coffee Grounds Extract: Comparative Performance in Different Acidic Media

This study investigates the efficiency of green corrosion inhibitors derived from spent coffee grounds (SCGs) for OL 37 carbon steel in 0.5 M H2SO4 and 1 M HCl environments. The aqueous extracts, labeled K1 and K2, were obtained through specialized extraction techniques and chara...