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Reconstruction‐engineered electrocatalysts with enriched high active Ni species for urea oxidation reaction (UOR) have recently become promising candidates for energy conversion. However, to inhibit the over‐oxidation of urea brought by the high valence state of Ni, tremendous efforts are devoted to obtaining low‐value products of nitrogen gas to avoid toxic nitrite formation, undesirably causing inefficient utilization of the nitrogen cycle. Herein, we proposed a mediation engineering strategy to significantly boost high‐value nitrite formation to help close a loop for the employment of a nitrogen economy. Specifically, platinum‐loaded nickel phosphides (Pt‐Ni2P) catalysts exhibit a promising nitrite production rate (0.82 mol kWh−1 cm−2), high stability over 66 h of Zn‐urea‐air battery operation, and 135 h of co‐production of nitrite and hydrogen under 200 mA cm−2 in a zero‐gap membrane electrode assembly (MEA) system. The in situ spectroscopic characterizations and computational calculations demonstrated that the urea oxidation kinetics is facilitated by enriched dynamic Ni3+ active sites, thus augmenting the "cyanate" UOR pathway. The C−N cleavage was further verified as the rate‐determining step for nitrite generation. [ABSTRACT FROM AUTHOR]

Purpose: Verruciform xanthoma (VX) is a rare, chronic, and benign lesion affecting the skin and mucous membranes. We reported a case of VX in the vulva of a female child. Patients and Methods: A 12-year-old female had vulvar lesions for over 10 years without any discomfort. Physical examination revealed red lobulated patches on the left labia majora with a few scales attached to the surface. Histopathological examination indicated excessive and incomplete keratinization, hypertrophic spinous layer hyperplasia, neutrophil infiltration in the epidermis, and foam-like tissue could be seen in the dermal papilla. Lymphocyte-dominated inflammatory cell infiltration was scattered around the blood vessels. Immunohistochemical results showed positive CD68. Results: The final diagnosis confirmed the presence of VX. Conclusion: Surgical intervention proved successful in achieving favorable outcomes for the patient. Plain Language Summary: Verruciform xanthoma (VX) is a rare and non-cancerous skin condition that usually appears in the mouth but can occur on the genitals. In this case, a 12-year-old girl had red, warty lesions on her left labia majora for over 10 years. The cause of VX is not well understood but may be linked to inflammation, trauma, or immune disorders rather than lipid metabolism. The girl's condition was confirmed through a biopsy, and she underwent surgical removal with no recurrence after a year. VX in the genital area is known as Vegas xanthomas. Though VX can look like other skin issues, a detailed examination of tissue samples is crucial for an accurate diagnosis. Treatment options include surgery, laser therapy, or topical creams. While VX is generally benign, seeking medical attention is important to rule out other concerns. [ABSTRACT FROM AUTHOR]

In this paper, we investigate the presentation for little q-Schur algebra uk (3,5) at odd roots. The Poincaré-Birkhoff-Witt (PBW) basis of uk (3,5) is obtained through the basis of q-Schur algebra U(3,5). Then we present a new set for generators and relations for uk (3,5) by PBW basis. [ABSTRACT FROM AUTHOR]

Novel quaternary ammonium/magnetic graphene oxide composites (M-PAS-GO) that efficiently remove Cr(VI) ions were fabricated through the introduction of the (3-aminopropyl) triethoxysilane and Fe3O4 nanoparticles on the surface of GO, and then modified with n-butyl bromide. The fabricated M-PAS-GO was comprehensively characterized by SEM, TEM, EDX, XRD, Raman spectroscopy and FTIR, and the results manifest that the quaternary ammonium group was introduced onto the surface of GO. Under the reaction conditions of pH 3.20, temperature of 25 °C and M-PAS-GO dosage of 0.01 g/50 mL, 90% of 10 mg/L Cr(VI) ions were removed from the solution within 20 min. The kinetics study indicates that the adsorption process followed the pseudo-second-order model and was surface reaction-controlled. The thermodynamic parameters calculated from temperature-dependent adsorption isotherms suggest that the adsorption process was an exothermic and spontaneous process. The maximum adsorption capacities of Cr(VI) ions on M-PAS-GO composites calculated by the Langmuir model were 46.48 mg/g. Moreover, the reusability and stability of M-PAS-GO demonstrates its economic sustainability. This study suggests that M-PAS-GO is a potential candidate adsorbent for the separation of Cr(VI) from wastewater. [ABSTRACT FROM AUTHOR]