ON HYBRID INTERIOR IDEALS IN SEMIGROUPS

In this paper, we introduce the notion of hybrid interior ideals and hybrid characteristic interior ideals of a semigroup. We obtain some equivalent conditions for a hybrid structure to be a hybrid interior ideal of a semigroup. Also, we show that hybrid interior ideals and hybrid ideals coincide for a regular semigroup and a intra-regular semigroup

Unique cellular immune signatures of multisystem inflammatory syndrome in children

The clinical presentation of MIS-C overlaps with other infectious/non-infectious diseases such as acute COVID-19, Kawasaki disease, acute dengue, enteric fever, and systemic lupus erythematosus. We examined the ex-vivo cellular parameters with the aim of distinguishing MIS-C from other syndromes with overlapping clinical presentations. MIS-C children differed from children with non-MIS-C conditions by having increased numbers of naïve CD8(+) T cells, naïve, immature and atypical memory B cells and diminished numbers of transitional memory, stem cell memory, central and effector memory CD4(+) and CD8(+) T cells, classical, activated memory B and plasma cells and monocyte (intermediate and non-classical) and dendritic cell (plasmacytoid and myeloid) subsets. All of the above alterations were significantly reversed at 6–9 months post-recovery in MIS-C. Thus, MIS-C is characterized by a distinct cellular signature that distinguishes it from other syndromes with overlapping clinical presentations. Trial Registration: ClinicalTrials.gov clinicaltrial.gov. No: NCT04844242

Turbulence and noise suppression of a high-speed jet by water injection

An experimental investigation has been carried out on a supersonic jet of air issuing from an M =1.44 convergingx2013;diverging rectangular nozzle of aspect ratio 4. Particle13; image velocimetry measurements of the flow field along with near-field acoustic measurements were made. The effect of injection of a small amount of water (x223C;5% of the mass flow rate of the jet) into the shear layer of the jet, on the unsteady flow structure and sound generation were examined. The presence of water droplets in the jet modified the turbulence structure significantly, resulting in axial and normal r.m.s.velocity reductions of about 10% and 30%, respectively, as compared to that of a13; normal jet. An even larger effect is found on the peak values of the turbulent shear stress with a reduction of up to 40%. The near-field noise levels (OASPL) were found13; to reduce by about 2x2013;6 dB depending on the location of the injection and the water mass flow rate. Far-field acoustic measurements carried out on a heated M =0.9 (jet13; exit velocity=525msx2212;1) jet show significant (6 dB) reductions in the OASPL with moderate amounts of water injection (17% of the mass flow rate of the jet) suggesting13; that the technique is viable at realistic engine operating conditions

P A ON STRONG IFP NEAR-RINGS

Abstract: In this paper, we introduce the notion of strong IFP and weak IFP near-rings. Weak IFP near-ring is a generalization of IFP near-ring. We study the basic properties of right weak IFP near-rings. We show that if N is a 2-primal near-ring and if N is strong IFP, then N is left weakly regular if and only if every prime ideal of N is maximal

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Not AvailableFish protein hydrolysates (FPH) from fresh water carps Catla catla, Labeo rohita and Cirrhinus mrigala were prepared with 5, 10, 15 and 20% degree of hydrolysis (DH) using papain enzyme. FPH were evaluated for antioxidant properties using in vitro assays such as DPPH free radical scavenging activity (at 10 mg/ml), ferric reducing antioxidant power assay (at 20 mg/ml) and linoleic acid peroxidation inhibition activity (at 10 mg/ml). Antioxidant properties of FPH varied with species and DH. The DPPH radical scavenging activity, linoleic acid peroxidation inhibition activity and ferric reducing antioxidant power (as absorbance at 700 nm) of FPH from carps was in the range of 59–92%, 52–85% and 0.388–0.663 respectively. Based on the overall antioxidant activity, FPH from C. catla with 20% DH was added to oil sardine mince at different concentration (0.1, 0.2 and 0.4%) and found to inhibit effectively the formation of peroxides and malonaldehyde in dose dependent manner. FPH from C. catla with 20% DH was fractionated using size exclusion chromatography and had three different peptide fractions with the approximate molecular weight of 6561–2106 Da (fraction 1), 1942–994 Da (fraction 2) and 935–383 Da (fraction 3). The present study showed promising results that the fish protein hydrolysates from fresh water carps muscle proteins can be used as natural antioxidants in food system. Production of fish protein hydrolysates with nutraceutical properties could be the way forward for better utilization and value addition.Not Availabl

Weakly Prime Ideals in Near-Rings

[[abstract]]In this short note, we introduce the notion of prime ideals in nearring and obtain equivalent conditions for an ideal to be a weakly prime ideal

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Not AvailableIn this study, antioxidant and surface-active properties of gelatin hydrolysates (GH) were evaluated. Gelatin obtained from croaker fish (Johnius dussumieri) skin was hydrolysed by the application of visceral proteases extracted from gastrointestinal (GI) tract of two freshwater fish species rohu (Labeo rohita)and catla (Catla catla). The resultant GH was designated as ‘gelatin hydrolysate-rohu protease’ (GH-RP) and ‘gelatin hydrolysate-catla protease’ (GH-CP). Surface-active properties (foaming and emulsion) of GH-RP were significantly higher than GH-CP at concentrations studied (P 10 kDa, 5-10 kDa, 3-5 kDa, 1-3 kDa and 50 value of DPPH radical scavenging activity of fraction 1-3 kDa from GH-RP and fractionNot Availabl

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Not AvailableGelatin protein hydrolysates (GPH) was prepared by using gelatin extracted from the skin of croaker (Johnius sp.), by the application of proteolytic enzymes extracted from gastrointestinal (GI) tract of two freshwater fish species rohu (Labeo rohita) and catla (Catla catla). The resultant hydrolysates were designated as gelatin protein hydrolysate-rohu protease (GPH-RP) and gelatin protein hydrolysate-catla protease (GPH-CP). Both the gelatin hydrolysates were fractionated into different ranges of molecular weight  10 kDa using ultrafiltration (UF) membranes. The fraction 1–3 kDa of GPH-RP hydrolysate and the fraction < 1 kDa GPH-CP hydrolysate were showed most potent angiotensin I-converting enzyme inhibitory (ACE) activity, and were subjected to liquid chromatography–mass spectroscopy (LC–MS/MS) for peptide sequencing, Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM) and amino acid analysis. The peptide sequence of gelatin hydrolysate fractions of GPH-RP (1–3 kDa) and GPH-CP (< 1 kDa), were identified as GLTGRPGDAGPQGK and GFPGER with relative molecular mass values of 1310.67 Da and 662.32 Da, respectively. FT-IR spectra in both fractions revealed random coil-structure and β-sheet. Microstructure of GPH fractions had crystalline, broken glass like structure, flake-like and wrinkled structure.Not Availabl