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The pyrimidine-deficient mutant (1298) of Neurospora crassa, utilizes erotic acid, uracil, uridine, or cytidine for growth, but neither cytosine nor thymine (1). It seems likely, therefore, that this mutant can convert erotic acid and uracil to the pyrimidine bases of ribonucleic acid and deoxyribonucleic acid, and can utilize the nucleoside directly for ribonucleic acid biosynthesis and for co...

BACKGROUND Methotrexate (MTX) is currently the anchor drug widely used worldwide in the treatment of rheumatoid arthritis (RA). However, the therapeutic response to MTX has been shown to vary widely among individuals, genders and ethnic groups. The reason for this has been not clarified but it is considered to be partially due to several mechanisms in the cellular pathway of MTX including singl...

The study analyses the phonological interference of phoneme pronunciation [q] by Sundanese and Javanese speakers compared with Arabic speakers. researchers used a descriptive comparative qualitative method. listened, took notes, documented voice recordings male students from ethnic groups when reading Qur'an to collect research data analyse it using Praat software version 6.2.13. From results r...

Abstract In this work, we consider the Hölder continuous regularity of stochastic convolutions for a class linear retarded functional differential equations with distributed delay in Hilbert spaces. By focusing on delays, first establish some more delicate estimates fundamental solutions than those given Liu (Discrete Contin. Dyn. Syst. Ser. B 25(4), 1279–1298, 2020). Then apply these to incurr...