Weak ferromagnetism in non-centrosymmetric BiPd 4K superconductor

We report synthesis of non-centrosymmetric BiPd single crystal by self flux method. The BiPd single crystal is crystallized in monoclinic structure with the P21 space group. Detailed SEM (Scanning Electron Microscopy) results show that the crystals are formed in slab like morphology with homogenous distribution of Bi and Pd. The magnetic susceptibility measurement confirmed that the BiPd compound is superconducting below 4K. Further, BiPd exhibits weak ferromagnetism near the superconducting transition temperature in isothermal magnetization (MH) measurements. The temperature dependent electrical resistivity also confirmed that the BiPd single crystal is superconducting at Tc=4K. Magneto transport measurements showed that the estimated Hc2(0) value is around 7.0kOe. We also obtained a sharp peak in heat capacity Cp(T) measurements at below 4K due to superconducting ordering. The normalized specific-heat jump, DC/{\gamma}Tc, is 1.52, suggesting the BiPd to be an intermediate BCS coupled superconductor. The pressure dependent electrical resistivity shows the Tc decreases with increasing applied pressure and the obtained dTc/dP is -0.62K/Gpa.Comment: 11 pages Text+Fig

EFFECT OF NITROGEN LEVELS ON GROWTH ATTRIBUTES, YIELD AND NUTRIENT UPTAKE OF DIFFERENT RICE (Oryza sativa L.) VARIETIES UNDER THE TRANSPLANTED CONDITION

Rice is very responsive to nitrogen fertilization under transplanted conditions; however N use efficiency and uptake by different varieties may vary. A field study was conducted during the rainy season of 2017 to assess the effect of four nitrogen levels in three rice varieties under the transplanted condition at Agricultural Research Farm, Banaras Hindu University, Varanasi, Uttar Pradesh. The experiment was carried out in a split-plot design (SPD) with three replications. The total number of treatments was twelve involving three rice varieties (V1- BPT-5204, V2- Rajendra Kasturi and V3- HUBR 2-1) in main plots and four nitrogen levels (N1- 100, N2- 120, N3- 140, and N4- 160 kg ha-1) in sub-plots. Rice variety BPT- 5204  recorded significantly higher growth parameters viz. leaf number hill-1(37.17), SPAD value (chlorophyll content 31.83), the higher number of days taken to 50 percent flowering (103 days), maturity (130.17 days), grain yield (50.73 q ha-1), biological yield (112.90 q ha-1) and harvest index (0.45) as well as NPK uptakes by grain (60.96, 13.01 & 10.95 kg ha-1) and straw (29.72, 7.15 & 101.55 kg ha-1) as compared to other varieties. However, straw yield (62.17 q ha-1) was reported higher under HUBR 2-1 as compared to the rest varieties. Among the nitrogen levels, N4-160 kg N ha-1 was recorded significantly higher above the same parameter as compared to other nitrogen levels. Hence, the application of N @ 160 kg ha-1 along with rice variety BPT- 5204 can be recommended for achieving higher rice yield, nutrient uptake, and efficiency in Eastern Uttar Pradesh

Cytotoxic and genotoxic assessment of wastewater on HEK293 cell line

558-564The increasing industrialisation and urbanisation have deteriorated the quality and quantity of water bodies, harming the surrounding flora and fauna. Therefore, in our studies, we have chosen the HEK293 cell line to examine further the level of wastewater toxicity to which living beings are exposed. The water samples were collected from various sites around the Agra Canal in the Faridabad region of Haryana. Furthermore, cytotoxicity and genotoxicity confirmation of wastewater samples were done by MTT and comet assay, respectively. The water quality of the Agra canal is heavily influenced by agricultural, domestic, and industrial waste, which may affect the genetic material of species exposed to contaminated water and the sustainability of the local environment. As a result, continuous environmental monitoring and proper policy formulation are required to minimise the adverse effects of pollutants in waste, which would further enrich India’s preparation to take India a step ahead, and that could be the best possible way to commemorate India’s 75th year of Independence with the Azadi Ka Amrit Mahotsav

Genomic characterization and epidemiology of an emerging SARS-CoV-2 variant in Delhi, India

Delhi, the national capital of India, experienced multiple severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreaks in 2020 and reached population seropositivity of >50% by 2021. During April 2021, the city became overwhelmed by COVID-19 cases and fatalities, as a new variant, B.1.617.2 (Delta), replaced B.1.1.7 (Alpha). A Bayesian model explains the growth advantage of Delta through a combination of increased transmissibility and reduced sensitivity to immune responses generated against earlier variants (median estimates: 1.5-fold greater transmissibility and 20% reduction in sensitivity). Seropositivity of an employee and family cohort increased from 42% to 87.5% between March and July 2021, with 27% reinfections, as judged by increased antibody concentration after a previous decline. The likely high transmissibility and partial evasion of immunity by the Delta variant contributed to an overwhelming surge in Delhi

ASSESSMENT OF STRESS END POINTS IN VIGNA RADIATA SEEDLINGS EXPOSED TO PRE-ACTIVATED TIO2 AND TISIO4 NANOPARTICLES UNDER SOLAR RADIATION

Objective: The present study was aimed to evaluate the phototoxic effects of sunlight pre-irradiated/nonirradiated TiO2, TiSiO4 nanoparticles and TiO2 bulk powder to Vigna radiata seedlings.Methods: Different concentrations (0.05, 0.2, 0.5 and 1.0 g/l) of nano/bulk particles were applied to the germinated seedlings for 24 h and various biochemical end points were assessed. The end points were superoxide dismutase activity, catalase activity, malondialdehyde (MDA) and proline content.Results: The irradiated nano TiO2 was more phototoxic to the seedlings as compared to both the non-irradiated nano TiO2 as well as the irradiated/non-irradiated TiO2 bulk powder, as revealed by the increased level of antioxidant enzymes activity in irradiated TiO2 nanoparticles treated group. Toxicity in nano TiO2 group was more confined to the lowest concentration (0.05 g/l). Proline, a well-recognized stress biomarker, was found to increase in all the irradiated as well as the non-irradiated groups in a dose dependent manner (0.20 to 1.0 g/l), offering a different mechanism of toxicity from that of antioxidative enzymes. TiSiO4 nanoparticles were not found to be phototoxic significantly under either exposure conditions.Conclusion: The seedlings of the three treatment groups responded variably to the stress biomarkers, indicating that the mode of action of the nanoparticles to the plant was different from that of the bulk particles in irradiated and non-irradiated conditions and was governed by more than a single factor

Cytotoxic and genotoxic assessment of wastewater on HEK293 cell line

The increasing industrialisation and urbanisation have deteriorated the quality and quantity of water bodies, harming the surrounding flora and fauna. Therefore, in our studies, we have chosen the HEK293 cell line to examine further the level of wastewater toxicity to which living beings are exposed. The water samples were collected from various sites around the Agra Canal in the Faridabad region of Haryana. Furthermore, cytotoxicity and genotoxicity confirmation of wastewater samples were done by MTT and comet assay, respectively. The water quality of the Agra canal is heavily influenced by agricultural, domestic, and industrial waste, which may affect the genetic material of species exposed to contaminated water and the sustainability of the local environment. As a result, continuous environmental monitoring and proper policy formulation are required to minimise the adverse effects of pollutants in waste, which would further enrich India’s preparation to take India a step ahead, and that could be the best possible way to commemorate India’s 75th year of Independence with the Azadi Ka Amrit Mahotsav

Model Suitability Analysis of Survival Time to Ovarian Cancer Patients Data

In this paper, we propose a suitable statistical model for survival time of the ovarian cancer patients data. The proposition followed by checking the suitability of twelve lifetime models through different statistical tools like the value of logarithmic of likelihood, Akaike Information Criterion, Kolmogorov-Smirnov distance and Bayesian Information Criterion. The maximum likelihood estimate of the parameters for the considered models has been obtained. Also, the non-parametric procedure has been used to show the validity of the conclusion

Enhanced spin-orbit coupling and charge carrier density suppression in LaAl1-xCrxO3/SrTiO3 hetero-interfaces

We report a gradual suppression of the two-dimensional electron gas (2DEG) at the LaAlO3/SrTiO3 interface on substitution of chromium at the Al sites. The sheet carrier density at the interface (n(square)) drops monotonically from similar to 2.2 x 10(14) cm(-2) to similar to 2.5 x 10(13) cm(-2) on replacing approximate to 60% of the Al sites by Cr and the sheet resistance (R-square) exceeds the quantum limit for localization (h/2e(2)) in the concentrating range 40-60% of Cr. The samples with Cr <= 40% show a distinct minimum (T-m) in metallic R-square (T) whose position shifts to higher temperatures on increasing the substitution. Distinct signatures of Rashba spin-orbit interaction (SOI) induced magnetoresistance (MR) are seen in R-square measured in out of plane field (H-perpendicular to) geometry at T <= 8K. Analysis of these data in the framework of Maekawa-Fukuyama theory allows extraction of the SOI critical field (H-SO) and time scale (tau(SO)) whose evolution with Cr concentration is similar as with the increasing negative gate voltage in LAO/STO interface. The MR in the temperature range 8K <= T <= T-m is quadratic in the field with a +ve sign for H-perpendicular to and -ve sign for H-parallel to. The behaviour of H-parallel to MR is consistent with Kondo theory which in the present case is renormalized by the strong Rashba SOI atT < 8K