Tailor-designed carbon-based novel fluorescent architecture for nanomolar detection of radioactive elements U(VI) and Th(IV) in pH ± 5.0.

Highly stable nitrogen-doped Graphene Quantum Dots (N-GQD) functionalized with Pamoic Acid (PA@N-GQD) are utilized for nanomolar detection of radioactive elements, Uranium (VI) and Thorium (IV), in pH ± 5.0. The absorption, fluorescence, crystalline nature, elemental composition, functional groups, and morphological state of as-prepared PA@N-GQD are evaluated by UV-visible absorption, photoluminescence, XRD, XPS, FTIR, HRTEM, FESEM, and AFM characterizations.

Replacement of failed items in a two commodity retrial queueing-inventory system with multi-component demand and vacation interruption.

This study investigates a crucial aspect of inventory management, which is the process of replacing failed items. In dynamic commercial environments, it is essential to efficiently and strategically replace failed items to maintain operational efficiency and ensure profitability. We consider a two-commodity retrial queueing-inventory system with vacation interruption.

Brocq's geometric phagedena over penis with keloidal scars.

Pyoderma gangrenosum is a rare neutrophilic inflammatory skin disorder commonly seen over lower limbs. Involvement of penile area is rare. We report this rare case of occurrence of ulcerative type of pyoderma gangrenosum over penis with pustular type elsewhere over the body, healing with keloids in an immunocompetent young man with no systemic associations.

Serum levels of soluble urokinase plasminogen activator receptor (suPAR) as a marker of tuberculosis treatment efficacy.

Background: Upon diagnosis, Pulmonary Tuberculosis patients are treated for TB for a period of 6-9 months. At present, there exists very little indication of the efficacy of the particular treatment. A few previous studies have shown that soluble urokinase plasminogen activator receptor (SuPAR) may be used as treatment efficacy marker.