Generalized information theoretic measure to discern the quantumness of correlations

A novel measure, quantumness of correlations is introduced here for bipartite states, by incorporating the required measurement scheme crucial in defining any such quantity. Quantumness coincides with the previously proposed measures in special cases and it vanishes for separable states - a feature not captured by the measures proposed earlier. It is found that an optimal generalized measurement on one of the parts leaves the overall state in its closest separable form, which shares the same marginal for the other part, implying that quantumness is non-zero for all entangled bipartite states and it serves as an upper bound to the relative entropy of entanglement.Comment: 5 pages, no figures, Revtex, Minor changes; Accepted for publication in Physical Review Letter

Local Invariants and Pairwise Entanglement in Symmetric Multi-qubit System

Pairwise entanglement properties of a symmetric multi-qubit system are analyzed through a complete set of two-qubit local invariants. Collective features of entanglement, such as spin squeezing, are expressed in terms of invariants and a classifcation scheme for pairwise entanglement is proposed. The invariant criteria given here are shown to be related to the recently proposed (Phys. Rev. Lett. 95, 120502 (2005)) generalized spin squeezing inequalities for pairwise entanglement in symmetric multi-qubit states.Comment: 9 pages, 2 figures, REVTEX, Replaced with a published versio

Antimicrobial Activity of a Rarely Known Species, Morinda citrifolia L.

Morinda Citrifolia is one of the most important traditional Polynesian medicinal plants. This small evergreen tree is native from South Eastern Asia to Australia and now it has a Pantropical distribution. It has antifungal, antibacterial, antiinflammatory and antiviral activities. Morinda citrifolia L. was studied for its antimicrobial activity. The leaves of this plant were dried, powdered and different extracts were prepared using different solvents like benzene, chloroform, ethyl acetate, ethanol and water. Four organisms, namely E.coli, Staphylococcus aureus, Candida albicans and Aspergillus niger, were used for investigation. The activity of each solvent extract was checked on each organism by disc diffusion method and then the zone size of each was measured. The results of our antimicrobial assay revealed that plant extracts showed inhibitory activity against the tested organisms

Quantum discord and classical correlation can tighten the uncertainty principle in the presence of quantum memory

Uncertainty relations capture the essence of the inevitable randomness associated with the outcomes of two incompatible quantum measurements. Recently, Berta et al. have shown that the lower bound on the uncertainties of the measurement outcomes depends on the correlations between the observed system and an observer who possesses a quantum memory. If the system is maximally entangled with its memory, the outcomes of two incompatible measurements made on the system can be predicted precisely. Here, we obtain a new uncertainty relation that tightens the lower bound of Berta et al., by incorporating an additional term that depends on the quantum discord and the classical correlations of the joint state of the observed system and the quantum memory. We discuss several examples of states for which our new lower bound is tighter than the bound of Berta et al. On the application side, we discuss the relevance of our new inequality for the security of quantum key distribution and show that it can be used to provide bounds on the distillable common randomness and the entanglement of formation of bipartite quantum states.Comment: v1: Latex, 4 and half pages, one fig; v2: 9 pages including 4-page appendix; v3: accepted into Physical Review A with minor change

Collective multipole-like signatures of entanglement in symmetric N-qubit systems

A cogent theory of collective multipole-like quantum correlations in symmetric multiqubit states is presented by employing SO(3) irreducible spherical tensor representation. An arbitrary bipartite division of this system leads to a family of inequalities to detect entanglement involving averages of these tensors expressed in terms of the total system angular momentum operator. Implications of this theory to the quantum nature of multipole-like correlations of all orders in the Dicke states are deduced. A selected set of examples illustrate these collective tests. Such tests detect entanglement in macroscopic atomic ensembles, where individual atoms are not accessible.Comment: REVTEX, 4 pages with 1 figure; To appear in Phys. Rev.

CLINICAL EFFICACY OF UDVARTANA WITH LEKHANA BASTI IN HYPERCHOLESTEROLEMIA

Now a day, due to increase in industrialized population include a sedentary lifestyle and a diet characterized by the excessive consumption of saturated fats, trans fatty acids and cholesterol which tends to increase blood cholesterol levels. Raised total cholesterol is a major cause of disease burden in both the developed and developing world as a risk factor for Ischemic heart disease and stroke. In Ayurveda, this condition can be considered under Santarpanotthavyadhi.  Due to Santarpanothanidanas there will be increase in the Pichilla and Snehagunas which in turn causes Ama, if further same nidanas are continued leads to Madhuratara of Ama and Annarasa causes the circulation of increased Medaie: Shareera Anukraman Atisnehan Medo Janayati.  To combat this condition Acharyas have mentioned about VatagnaAnnapana, Ruksha- Ushna i.e., Ruksha Udvartana, Lekhana Basti etc lines of treatment.  Hence this study was taken up to see the efficacy of the treatment protocol mentioned for the better management. It was an open label clinical study done on 10 patients.  Patients were subjected to Sarvanga Udvartana with Kolakulatthadichurna and Lekhanabasti for a period of fifteen days. In the present study, the effect of the treatment has shown statistically Highly Significant   (p<0.01) results on Serum Cholesterol and LDL.  As the study was conducted to know the combined effect of Bahyaupakrama along with the Lekhanabasti, the usefulness of individual Upakrama found limited.  So probably administration of these upakramas in single dimension one after the other along with proper diet and physical exercise in frequent intervals may yield good results

Dual Polarization of Antenna for Wireless Applications

An antenna can be designed with simple inductance and capacitance (LC) circuit. The resonant frequency can be introduce with C-shaped cut to increase the inductance value L without affecting any disturbance for parallel capacitor C. This paper presents a design of an antenna with C shaped metamaterials for polarization. The T-shape is used as feed to C slot cut metamaterials for widen bandwidth. This can be used for short range two way communications which provides low cost profil

Non-local properties of a symmetric two-qubit system

Non-local properties of symmetric two-qubit states are quantified in terms of a complete set of entanglement invariants. We prove that negative values of some of the invariants are signatures of quantum entanglement. This leads us to identify sufficient conditions for non-separability in terms of entanglement invariants. Non-local properties of two-qubit states extracted from (i) Dicke state (ii) state generated by one-axis twisting Hamiltonian, and (iii) one-dimensional Ising chain with nearest neighbour interaction are analyzed in terms of the invariants characterizing them.Comment: 5 pages, no figure

Impact of pollination strategies on fruit set and fruit growth attributes in jasmine

Jasmine occupies predominant position among the flower crops in India in terms of area, production and productivity. The demand for jasmine flowers is growing day by day owing to its wide range of uses and there is a pressing need for improving the crop by exploring strategies to evolve diverse genotypes. The present study focuses on the hybridization of Jasminum spp with the objective of introgression of desirable traits that would aid in creation of wider genetic variability. Pollination is the basis in any hybridization programme. The main aim of this research study was to determine the suitable pollination methods among self, open and cross pollination and to assess the effect of the pollination methods on the fruit set and fruit characteristics. The results of the study revealed that the overall response of J. auriculatum was found effective with maximum fruit set percentage. J. auriculatum cv Parimullai yielded the highest fruit set of 76.43% under open pollination and the least fruit set rate of 2.14% under self-pollination. Among the possible cross combination involving J. auriculatum and J. grandiflorum cultivars as seed parents with various pollen parents, J. flexile showed considerable results. Cross combination of J. auriculatum x J. flexile recorded maximum fruit set revealing best cross compatibility while crosses involving J. sambac resulted in no fruit set indicating the prevalence of fertilization barriers that hinder hybridization

Variable association of DNA polymerase with the cytoskeletal fractions of resting and dividing cells

A DNA polymerase activity associated with the detergent insoluble cytoskeletal fraction has been identified in dividing and non-dividing rat hepatocytes and a hepatoma (the Zajdela Ascitic Hepatoma). About 35 % of the enzyme is found associated with the cytoskeletal fraction of non-dividing cells as compared to about 3-6 % of the enzyme in dividing cells even though the dividing cells contain larger amounts of the extranuclear enzyme. The properties of the enzyme are similar to those of DNA polymerase-α . It is suggested that the association of the enzyme with the cytoskeletal fraction has functional significance