Two-neutrino double β decay of96Zr to excited 2+ state of96Mo

The two-neutrino double beta decay of⁹⁶Zr isotope for 0⁺ → 2⁺ transition has been studied in the PHFB model. In our earlier work, the reliability of the intrinsic wave functions of⁹⁶Zr and⁹⁶Mo isotopes has been established by obtaining an overall agreement between a number of theoretically calculated spectroscopic properties as well as half-lives of 2vββ decay for 0⁺ → 0⁺ transition and the available experimental data. In the present work, the half-life of 2vββ decay for 0⁺ ar 2⁺ transition T ₁ ^2/2v (0⁺ →²⁺) has been calculated using the same set of intrinsic wave functions.     

Coherent state in the roton region of superfluid helium-4

Summary Coherent states in the roton region of superfluid He⁴ are studied with a view to determine the transition probability from phonon to roton states. These states are formed in such a way that they are found to be identical to those of the angular-momentum states. During the editorial procedure we came to know that this author deceased.     

Exploring effective interactions through transition charge density study of70,72,74,76Ge nuclei

Transition charge densities (TCD) for 0⁺ → 2 ₁ ⁺ excitation have been calculated for^70,72,74,76Ge nuclei within microscopic variational framework employing 2p _3/2, 1f _5/2, 2p _1/2 and 1g _9/2 valence space. The calculated TCDs for different monopole variants of Kuo interaction are compared with available experimental results. Other systematics like reduced transition probabilitiesB(E2) and static quadrupole momentsQ(2) are also presented. It is observed that the transition density study acts as a sensitive probe for discriminating the response of different parts of effective interactions.     

Effect of quenching on the structural and dynamic properties of non-aqueous lyotropic mesophases

We focused to highlight the effect of quenching on the development and ordering of non-aqueous lyotropic liquid crystalline phases. Lyotropic mesophases are prepared from binary mixtures of sodium dodecyl sulphate and ethylene glycol at varying concentrations 30:70 and 50:50 wt%. The obtained self-assembled phases are characterised by X-ray diffraction, polarisation optical microscopy, differential scanning calorimetry and dielectric spectroscopy to evaluate the structural, optical, thermal and dielectric behaviours. Structural and textural measurements confirmed mesomorphic and crystalline phases for both mixtures. Calorimetric study gives insight about the growth of new phases at ≈335 K and isotropic temperatures of these mixtures. Both the mixtures are quenched from 335 K to the 303 K to analyse the effect of quenching on the structure and ordering of mesophases. We noticed well-defined hexagonal liquid crystalline mesophases for both concentrations after quenching at 303 K. Dielectric and relaxation behaviours of quenched mesophases were also examined. Higher capacitance and dielectric strength are noticed for quenched mixtures. The application prospective of such phases is also discussed.     

Ni0.9Mn0.1Fe2O4 nanoparticles preparation and sunlight-utilized photocatalytic activity

Research on Chemical Intermediates - The metal hydrazine precursor of Ni0.9Mn0.1Fe2O4 nanoparticles was prepared through co-precipitation technique. Infrared spectrum of the precursor was showed...     

AbSep--an amino acid based pseudobioaffinity adsorbent for the purification of immunoglobulin G

The present work deals with the development and characterization of a tryptophan based pseudobioaffinity adsorbent for the purification of monoclonal and polyclonal antibodies. Tryptophan as a ligand was selected based on molecular docking and experimental screening studies of the amino acids involved in IgG-Protein A interaction. The ligand was coupled to a polymethacrylate based rigid, porous SEPABEADS beaded matrix to obtain the desired affinity adsorbent, which was named AbSep. Characterization studies with regards to the effect of matrix properties (pore size, particle size, nature of matrix, spacer arm) and the medium properties (pH, conductivity, additives) were performed to elucidate the nature of IgG-AbSep interactions and to determine the optimal conditions for obtaining high binding and purity of IgG. The equilibrium binding capacity of AbSep and dissociation constant was found to be 78 mg/ml and 5.31×10(-6)M respectively. AbSep was able to successfully purify polyclonal human IgG from plasma and monoclonal antibody (chimeric IgG1) from CHO cell culture supernatant. Both binding and elution steps were performed at near neutral pH resulting in a purity and recovery of more than 90% and 85% respectively. Additionally, AbSep was shown to be stable to 0.5M NaOH solutions, the preferred agent for cleaning and sanitization of chromatographic media.     

Modeling reorientation phenomena in nonwoven materials with random fiber network microstructure

In this work, a micromechanically motivated affine full network model (AFNM) is used to simulate the load-displacement response of nonwoven materials. These materials are made from synthetic advanced fibers by bonding or interlocking networks of randomly laid fibers through mechanical, chemical or thermal processes. This results into a random fibrous network microstructure and a highly inhomogeneous response to external loadings with a very high degree of anisotropy. The load-displacement response under large strains is observed to be highly non-linear with a stiffening behavior which is also accompanied by complex dissipative phenomena. The preliminary simulation results with the AFNM, after reducing to two-dimensional setting, highlight its limitations and help identify the areas of improvement for a realistic material modeling. Reorientation of fibers are shown to play a critical role in the overall macroscale response of the materials. A new evolution law for reorientation is presented in the form of a first order ordinary differential equation where an exact analytical solution to the same is also computed. Improvements of the predicted load-displacement response signify the microscopic origins of the non-linear stiffening behavior as reorientation of fibers. (© 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)     

DDQ as a Mild and Efficient Catalyst for Deprotection of Tetrahydropyranyl Ethers

In the presence of a catalytic amount of 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ), tetrahydropyranyl ethers are readily hydrolysed to their corresponding alcohols in wet acetonitrile under mild conditions.     

Extension of certain types of generating relations

This paper gives a new expansion formula which essentially involves a double sum. As a consequence of our main result, eq. (6), various types of generating relations are seen to emerge and relevance with some known results is pointed out briefly. The usefulness of our main result is also indicated by considering its application to a probabilistic method for a lattice path enumeration problem.