61 research outputs found

    Deformation Effect on Proton Bubble Structure in N = 28 Isotones

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    Purpose: To study the effect of nuclear deformation on proton bubble structure of N = 28 isotones and and compare it with the spherical limits. The reduction of depletion fraction due to deformation can be explained by studying the relative differences in the central densities.Methods: In this work, we have employed relativistic Hartree-Bogoliubov (RHB) model withdensity-dependent meson-exchange (DD-ME2) interaction and separable pairing interaction. We have performed axially constrained calculations to investigate the deformed proton bubble structure in 40Mg, 42Si, 44S, and 46Ar, isotones of N = 28 shell closure.Results: We have observed that the nuclear deformation play againsts the formation of bubble structure. In the spherical limits, the isotones of N = 28 shell closure have pronounced bubble structure with large value of depletion fraction. But, the increase in deformation leads to the disappearance of bubble structure. The internal densities in deformed nuclei are found to increase with deformation which can be related to the decrease in depletion fraction.Conclusion: By using RHB model, we have investigated the ground state and proton bubble structure of N = 28 isotones. In 44S, and 46Ar, the 2s1/21d3/2 states get inverted due to the weakning of spin-orbit strength. Due to strong dynamical correlations, arising from deformation, the central depletion of proton density is greatly affected in these isotones. The decrease in depletion fraction can be related to increase in the internal density due to deformatio

    Impact of Nuclear Deformation on Neutron Dripline Prediction: A Study of Mg Isotopes

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    We have employed the relativistic Hartree-Bogoliubov (RHB) model with density-dependent meson-exchange interaction and separable pairing to investigate neutron dripline mechanisms for heavy Mg isotopes. In the present study, 40Mg is predicted to be dripline nuclei. The calculations are carried out by taking axial deformation into account. An investigation of shape transition is also done for even-even 32-42Mg isotopes. Our prediction for neutron dripline for 40Mg is consistent with some recent studies

    Nuclear shape evolution and shape coexistence in Zr and Mo isotopes

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    The phenomena of shape evolution and shape coexistence in even-even 88−126^{88-126}Zr and 88−126^{88-126}Mo isotopes is studied by employing covariant density functional theory (CDFT) with density-dependent point coupling parameter sets DD-PCX and DD-PC1, and with separable pairing interaction. The results for rms deviation in binding energies, two-neutron separation energy, the differential variation of two-neutron separation energy, and rms charge radii, as a function of neutron number, are presented and compared with available experimental data. In addition to the oblate-prolate shape coexistence in 96−110^{96-110}Zr isotopes, the correlation between shape transition and discontinuity in the observables are also examined. A smooth trend of charge radii in Mo isotopes is found to be due to the manifestation of triaxiality softness. The observed oblate and prolate minima are related to the low single-particle energy level density around the Fermi level of neutron and proton respectively. The present calculations also predict a deformed bubble structure in 100^{100}Zr isotope.Comment: this preprint contains incomplete data and some mistake

    Pregnancy outcome in women with intrahepatic cholestasis of pregnancy

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    Background: Intrahepatic cholestasis of pregnancy is a multifactorial condition of pregnancy diagnosed when otherwise unexplained pruritus with abnormal liver function test and neither of which has an alternative cause. The most appropriate gestational age for the delivery of women with ICP is yet to be determined. The present study is designed to determine whether with active intervention, pregnancy with ICP can be carried to a later gestation.Methods: Fifty Women with diagnosed a case of ICP were recruited into the study. The diagnosis of ICP was based on the symptoms, clinical examination and lab investigations. Group I: 25 women planned for delivery at POG 37 - 37+6 weeks of pregnancy. Group II: 25 women Planned for delivery at POG ≥38 weeks of pregnancy.Results: In group, one woman had preterm delivery at POG 36+2 weeks and rest of 24 women were delivered at POG 37-37+6 weeks. In group II, out of 25 women one woman had emergency LSCS at POG 35+3 weeks for MSL and induction of labour was done in 2nd for abnormal fetal well-being tests at POG 37 weeks. One woman had pre-term delivery at POG 36+1 weeks. Remaining 22 women in group II were delivered at POG ≥38 weeks. In the present study there was no significant difference in the gestational age at delivery between the two groups.Conclusions: It can be concluded that pregnancies with obstetric cholestasis can be carried to later gestation of ≥38 weeks under surveillance with UDCA treatment

    A study of incidence of congenital anomalies in newborn: a hospital based study

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    Background: Congenital anomalies have emerged as a main cause of perinatal mortality as well as infant morbidity and mortality. The aim of this study is to determine the incidence of congenital anomalies and to study associated factors.Methods: It is an observational study conducted in the Department of Obstetrics and Gynecology of SMGS Hospital during a period of one year from October, 2012 to September, 2013. All women with anomalies proven on Ultrasonography and those having no antenatal record but after delivery/abortion, examination of newborns revealed anomalies; were included in the study.Results: The pattern of congenital anomalies included Central nervous system (49.60%), Urinary system (13.79%), musculoskeletal system (12.99%), GIT (7.16%), CVS (5.83%) etc. The overall incidence of congenital anomalies was 1.85%. Higher incidence of anomalies was found in babies of mother between 26-30 years of age (2.13%) and parity of 4 and above (3.65%). Frequency was more common in Muslims as compared to Hindus (2.8% vs 1.68%), in non-cephalic presentation as compared to cephalic presentation (10.28% versus 1.51%).Conclusion: This study stresses upon incidence of congenital anomalies as they are an important cause of perinatal mortality. To decrease the incidence of various congenital anomalies and their prevalence in the particular region, it is important that the distribution and prevalence are identified in that region and country as a whole.

    Molecular interactions studies of doxycycline hyclate in water, aqueous L-phenylalanine and glycyl glycine at different temperatures by using volumetric, ultrasonic and viscometric parameters

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    The density, sound velocity and viscosity of doxycycline hyclate in water, aqueous solution of L-phenylalanine and aqueous solution of glycyl glycine have been determined at different temperatures (305.15, 310.15, 315.15 and 320.15) K. The calculated values of partial molar volume (V_ϕ^o), standard partial molar volume of transfer (〖Δ_tr V〗_ϕ^o), partial molar adiabatic compressibility (κ_(ϕ,s)^o) and partial molar adiabatic compressibility of transfer (〖Δ_tr κ〗_(ϕ,s)^o) for doxycycline hyclate in water, aqueous solution of L-phenylalanine and aqueous solution of glycyl glycine infer the dominance of ion-hydrophilic interactions over hydrophobic-hydrophobic interactions. The Jones-Dole viscosity B-coefficient, viscosity B-coefficient of transfer (ΔtrB), free energy of activation of viscous flow per mole of pure solvent (〖Δμ〗_1^(o*)) and solute (〖Δμ〗_2^(o*) ), respectively, activation entropy (〖ΔS〗_2^(o*)) and activation enthalpy (〖ΔH〗_2^(o*)) of doxycycline hyclate in water, aqueous solution of L-phenylalanine and aqueous solution of glycyl glycine also have been calculated using viscosity data. The structure making and breaking behaviour of doxycycline hyclate in water, aqueous solution of L-phenylalanine and aqueous solution of glycyl glycine are obtained from the values of Hepler’s constant i.e.((δ^2 V_ϕ^o)/(δT^2 )) and (dB/dT). The presence and absence of caging effect has been studied with the help of partial molar adiabatic expansibility (E_ϕ^o). The isobaric thermal expansion coefficient (α^o= (E_ϕ^o)/(V_ϕ^o )), intermolecular free length and acoustic impedance for doxycycline hyclate in water, aqueous solution of L-phenylalanine and aqueous solution of glycyl glycine also have been determined

    Relativistic Mean Field Model parameterizations in the light of GW170817, GW190814, and PSR J0740 + 6620

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    Three parameterizations DOPS1, DOPS2, and DOPS3 (named after the Department of Physics Shimla) of the Relativistic Mean Field (RMF) model have been proposed with the inclusion of all possible self and mixed interactions between the scalar-isoscalar (\sigma), vector-isoscalar (\omega) and vector-isovector (\rho) mesons up to quartic order. The generated parameter sets are in harmony with the finite and bulk nuclear matter properties. A set of Equations of State (EOSs) composed of pure hadronic (nucleonic) matter and nucleonic with quark matter (hybrid EOSs) for superdense hadron-quark matter in \beta-equilibrium is obtained. The quark matter phase is calculated by using the three-flavor Nambu-Jona-Lasinio (NJL) model. The maximum mass of a non-rotating neutron star with DOPS1 parameterization is found to be around 2.6 M⊙\odot for the pure nucleonic matter which satisfies the recent gravitational wave analysis of GW190814 Abbott et al.,(2020) with possible maximum mass constraint indicating that the secondary component of GW190814 could be a non-rotating heaviest neutron star composed of pure nucleonic matter. EOSs computed with the DOPS2 and DOPS3 parameterizations satisfy the X-Ray observational data and the recent observations of GW170817 maximum mass constraint of a stable non-rotating neutron star in the range 2.01 \pm 0.04 - 2.16 \pm 0.03 M\odot and also in good agreement with constraints on mass and radius measurement for PSR J0740+6620 (NICER) Riley et al., L27 (2021)}, Miller et al., (2021). The hybrid EOSs obtained with the NJL model also satisfy astrophysical constraints on the maximum mass of a neutron star from PSR J1614-2230 and Demorest et al., (2010) .We also present the results for dimensionless tidal deformability, Λ{\Lambda} which are consistent with the waveform models analysis of GW170817.Comment: 14 Pages, 10 Figures. arXiv admin note: text overlap with arXiv:2110.07877 by other author

    Knowledge and treatment seeking behavior regarding malaria among the residents of tribal dominated areas of Mandla district in central India – A cross-sectional study

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    Background: Malaria is both a result and a cause of a lack of development. Dearth of information, education, and communication activities and awareness, knowledge regarding malaria is poor particularly in tribal population of Mandla. Aims and Objectives: The aim of the study was to assess the malaria knowledge and treatment-seeking behavior among the residents of the tribal dominated areas of Mandla district and to study their association with the sociodemographic characteristics. Materials and Methods: A total of eight villages were selected from which 25 households were randomly selected making a total sample size of 200 households, from these 200 households, 200 adult respondents were identified for administration of the study questionnaire. Results: The age of the respondents ranged from 18 to 80 years, with a mean age of 37 years (SD=14.7). Overall, 48.5% of respondents had correct knowledge about perceived cause of getting malaria. The treatment seeking behavior of the respondents were associated with sociodemographic profile of the participants the age of the participants, the association was found to be highly statistically significant (P=0.001). Conclusion: Malaria prevention campaigns should be tailored according to knowledge gaps, practices, environment, resources, and preferences in different areas of the Mandla District, using the health education/awareness most likely to outreach the far corners of the district where most residents were tribals
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