916 research outputs found
Constraining gravity by dynamical system analysis
The evolutionary behavior of the Universe has been analysed through the
dynamical system analysis in gravity, where , , ,
and respectively represent torsion, boundary term, teleparallel
Gauss-Bonnet term and Gauss-Bonnet boundary term. We use the transformation,
in order to obtain the
deviation from the Teleparallel Equivalent of General Relativity (TEGR). Two
cosmological models pertaining to the functional form of have been studied. The well motivated forms are: (i) and (ii) . The evolutionary phases of the Universe have
been identified through the detailed analysis of the critical points. Further,
with the eigenvalues and phase space diagrams, the stability and attractor
nature of the accelerating solution have been explored. The evolution plots
have been analyzed for the corresponding cosmology and compatibility with the
present observed value of standard density parameters have been shown.Comment: 17 pages, 4 figures, 6 tables. Constructive comments are welcom
Studies on protein profile of Ascardia galli and its host Gallus gallus domesticus
The present investigation deals with the protein content in nematode parasite Ascardia galli and its host tissue i.e. normal and infected intestinal tissue of Gallus gallus domesticus. The result obtained an amount of protein content in the present study indicates that the amount of proteins present in nematode parasites is low as compared to protein present in infected intestine as well as in normal intestine. 
Effect of fillers and fire retardant compounds on hydroxy terminated polybutadiene based insulators
A series of polyurethane compositions have been formulated using hydroxy-terminated polybutadiene as polymeric binder and carbon black as a major filler. Various binder-to-filler ratios of the formulations were evaluated to get calendered sheets. The formulations have been characterised for pot-life and rollability and the calendered sheets for mechanical and thermal properties, bUm rate, glass transition temperature, shore hardness and density . The different fillers tried were varieties of carbon black as a major filler; metal oxides, silicates and organic compounds; and fire retardants, such as zinc borate, sodium metaborate, ammonium dihydrogen phosphate and antimony trioxide. The structure and morphology of the fillers have been correlated with the properties. The optimised composition has been evaluated in an end-burning motor, as an insulator for case-bonded application, using a typical composite propellant. The results of interface bonding between the propellant and the insulator have also been presented
Noether Symmetries in Cosmology
All degrees of freedom related to the torsion scalar can be explored by
analysing, the gravity formalism where, is a torsion scalar and
is the teleparallel counterpart of the Gauss-Bonnet topological invariant
term. The well-known Noether symmetry approach is a useful tool for selecting
models that are motivated at a fundamental level and determining the exact
solution to a given Lagrangian, hence we explore Noether symmetry approach in
gravity formalism with three different forms of and study
how to establish nontrivial Noether vector form for each one of them. We extend
the analysis made in \cite{capozziello2016noether} for the form
and discussed the symmetry for this
model with linear teleparallel equivalent of the Gauss-Bonnet term, followed by
the study of two models containing exponential form of the teleparallel
equivalent of the Gauss-Bonnet term. We have shown that all three cases will
allow us to obtain non-trivial Noether vector which will play an important role
to obtain the exact solutions for the cosmological equations.Comment: 12 page
A specific colour inhibiter gene in rice
This article does not have an abstract
THE ACCELERATED STABILITY STUDY OF CONSTALAX CHURNA- AN AYURVEDIC FORMULATION
Constalax churna, greenish brown powder with characteristic odor and bitter salty taste was evaluated for its stability, as per ICH guidelines Q1A (R2) at accelerated conditions (Temperature: 40 °C ± 2, Relative Humidity : 75% ± 5). The real time stability is estimated at temperature: 25 °C ± 2 &relative humidity 60% ± 5.The study sample was observed for changes in different parameters like physico-chemical, organoleptic and microbial load for 6 month under accelerated conditions and for real time stability study observed for one year. Real time stability was comparatively estimated to evaluate actual degradation rate of Constalax Churna with respect to accelerated conditions. Up to six months of storage at accelerated condition, no change was observed in organoleptic parameters like colour, odour and taste of Constalax Churna. Changes in of different physico-chemical parameters were taken into account to evaluate intercept and slope. Extrapolated shelf life of Constalax Churna was calculated with 10% degradation rate from physico-chemical parameters at accelerated condition 40 °C ± 2 and 75% ± 5 RH. The present evaluation supports that the Constalax Churna was appropriate at accelerated condition up to 6 month storage. From this accelerated stability study it could be extrapolated that shelf life of Constalax Churna is 25.42 months (2.11years) for climatic zone I & II countries. Real time stability data of Constalax Churna showed very good stability up to 2 years
ESTIMATION OF TOTAL PHENOL IN SOME MEDICINAL PLANTS OF MARATHWADA REGION IN MAHARASHTRA
An attempt has been made here to investigate occurrence of total phenol in the leaves , bark and wood  of Butea monosperma ÂÂLam, Madhuca indica Gmel, Mimusops elengi Linn and Syzygium cumini Linn. are medicinally important plants of Marathwada region in Maharashtra. Comparative account of total phenol content of leaves ,bark and wood of four species revealed that , Madhuca indica were rich ( range 2.156 to 4.410 mg / g dry wt. ) than Butea monosperma (range 1.987 to 4.138 mg / g dry wt.) ÂÂ, Mimusops elengi (range 2.601 to 3.438 mg / g dry wt.) and Syzygium cumini (range 1.621 to 3.330 mg / g dry wt. ) in all seasons. Key words: Total Phenol, Medicinal Plants, Marathwada region
Accelerating Cosmological Models in Gravitational Theory
In this paper, we have explored the field equations of f(T, B) gravity as an
extension of teleparallel gravity in an isotropic and homogeneous space time.
In the basic formalism developed, the dynamical parameters are derived by
incorporating the power law and exponential scale factor function. The models
are showing accelerating behaviour and approaches to CDM at late
time.The present value of the equation of state parameter for both the cases
are obtained to be in accordance with the range provided by cosmological
observations. The geometrical parameters and the scalar field reconstruction
are performed to assess the viability of a late time accelerating Universe.
Further the stability of both the models are presented. It has been observed
that both the models are parameters dependent. Since most of the geometrically
modified theories of gravity are favouring the violation of strong energy
condition, we have derived the energy conditions both for the power law and
exponential model. In both the models, the violation of strong energy condition
established.Comment: 14 Pages, 9 figure
An inhibitor for petiolate condition in Nicotiana tabacum L.
This article does not have an abstract
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