Energy and momentum of Bianchi Type VI_h Universes

We obtain the energy and momentum of the Bianchi type VI_h universes using different prescriptions for the energy-momentum complexes in the framework of general relativity. The energy and momentum of the Bianchi VI_h universe are found to be zero for the parameter h = -1 of the metric. The vanishing of these results support the conjecture of Tryon that Universe must have a zero net value for all conserved quantities.This also supports the work of Nathan Rosen with the Robertson-Walker metric. Moreover, it raises an interesting question: "Why h=-1 case is so special?

Management of Haemorrhoids (Arsha) with Yogic Life Style

Arsha (haemorrhoids) is an ailment that affects all economical groups of population. Though the disease is within the limits of management, it has its own complications like severe haemorrhage, inflammation and thrombosis, by which a patient gets severe pain and is unable to continue his routine work. Haemorrhoids are inflamed and swollen veins around the anus and lower part of rectum. They usually occur as a result of altered dietary pattern, altered life style, genetics, and pregnancy. One of the most common ailments of the rectum, affecting as much as half the population by the age group of 50. Suffering from haemorrhoids is not only painful but embarrassing as well. They may be classified as either internal or external. Many not only want to know how to heal haemorrhoids but how to heal them fast and naturally. The authors review the role of Ayurveda in the management of haemorrhoids (Arshas). It has been proved by scientific studies that botanicals improve microcirculation, capillary flow and to strength of the surrounding connective tissues of anus and lower rectum. Purpose of this article is to create the awareness regarding modification of life style for the prevention of Arshas / piles by regular practise of Yogic Asanas, following strict Pathya Ahara and Viharas according to Ayurveda

Phyto physico-chemical profile of Ashwagandha (Withania somnifera Dunal)

Introduction: The present article deals with study of phytochemical analysis of Withania somnifera Dunal roots. Ashwagandha (Withania somnifera Dunal - Solanaceae), The use of Ashwagandha (WS) is increasing due to a number of chemical constituents present in are found useful for promotion of health. Important bio-active constituents of Ashwagandha root powder are alkaloids, tannins and flavonoid and phenolic compound helps to promote the health benefits. Objective: Evolution of Physico- chemical and phyto chemical analysis of Ashwagandha (WS) powder. Materials and methods: The current investigation deals with extraction and detection or screening of active phytochemical compounds from different extracts of Withania somnifera root. Pharmacognostic studies, Physico-chemical studies, Preliminary phytochemical studies and HPTLC was carried out. Result and conclusion: The result drown were 2% foreign mater was determined. Loss on drying 1.6%, total ash obtained was 9%, acid insoluble ash was 1% and water soluble extractive was 12% and Alcohol soluble extractive was 13%. The phytochemical investigation revealed the presence of various phytochemical constituents such as alkaloids, flavonoids, carbohydrate, Steroids and Saponin Glycoside. HPTLC chromatograms of methanol extracts obtained from root of Withania somnifera revealed that higher quality of with a nolides was present. Hence the root of Withania somnifera was considered to mostly prefer for commercial preparation of drugs

Ayurvedic management of Chirakari Vicharchika (Eczema) : A Case Report

Skin is the largest organ of the body that constitutes the first line of defence and hence is first to be exposed to disease. Among them eczema is one of the most common clinical presentations. With an incidence of 2 -3 % of all medical problems and about 30 percent of all the dermatitis. Eczema is a non-contagious inflammation of the skin, characterised by erythema, scaling, oedema, vesiculation and oozing. In Ayurveda it is correlated with Vicharchika because of similar features like Kandu, Srava, Pidaka. Vicharchika is considered as Kshudra Kushta.[1] In the contemporary science there is no satisfactory treatment available with a lot of side effects and increased rate of recurrence. The unique line of management in Ayurveda helps in removing disease right from its root. Here is a case of Vicharchika (eczema) treated with this thinking to highlight treatment principles

Dual effect of anionic surfactants in the electrodeposited MnO2 trafficking redox ions for energy storage

The dual effect of in-situ addition of anionic surfactants, sodium octyl sulfate (SOS), sodium dodecyl sulfate (SDS) and sodium tetradecyl sulfate (STS) on the microstructure and electrochemical properties of electrolytic manganese dioxide (EMD) produced from waste low grade manganese residue is discussed. X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), BET-surface area studies, thermogravimetry-differential thermal analysis (TG-DTA) and Fourier transform infrared spectroscopy (FTIR) were used to determine the structure and chemistry of the EMD. All EMD samples were found to contain predominantly gamma-phase MnO2, which is electrochemically active for energy storage applications. FESEM images showed that needle, rod and flower shaped nano-particles with a porous surface and platy nano-particles were obtained in the case of EMD deposited with and without surfactant respectively. Thermal studies showed loss of structural water and formation of lower manganese oxides indicating high stability of the EMD samples. The cyclic voltammetry and charge - discharge characteristics implied the presence of surfactants enhances the energy storage within the MnO2 structure. Addition of the surfactant at its optimum concentration greatly increased the EMD surface area, which in turn improved the cycle life of the EMD cathode. EMD obtained in the presence of 25, 50, 25 ppm of SOS, SDS, and STS respectively showed an improved cycle life relative to the EMD obtained in the absence of surfactant. EMD obtained without surfactant showed a capacity fade of 20 mAh g(-1) within 15 discharge-charge cycles, while surfactant modified samples showed stable cyclic behavior of capacity 95 mAh g(-1) even after 15 cycles

Gravitating dyons and the Lue-Weinberg bifurcation

Gravitating t'Hooft-Polyakov magnetic monopoles can be constructed when coupling the Georgi-Glashow model to gravitation. For a given value of the Higgs boson mass, these gravitating solitons exist up to a critical value of the ratio of the vector meson mass to the Planck mass. The critical solution is characterized by a degenerate horizon of the metric. As pointed out recently by Lue and Weinberg, two types of critical solutions can occur, depending on the value of the Higgs boson mass. Here we investigate this transition for dyons and show that the Lue and Weinberg phenomenon is favorized by the presence of the electric-charge degree of freedom.Comment: RevTeX, 6 pages, 8 figure

Proton radioactivity half lives with Skyrme interactions

The potential barrier impeding the spontaneous emission of protons in the proton radioactive nuclei is calculated as the sum of nuclear, Coulomb and centrifugal contributions. The nuclear part of the proton-nucleus interaction potential is obtained in the energy density formalism using Skyrme effective interaction that results into a simple algebraic expression. The half-lives of the proton emitters are calculated for the different Skyrme sets within the improved WKB framework. The results are found to be in reasonable agreement with the earlier results obtained for more complicated calculations involving finite range interactions.Comment: 10 pages including 4 figures and 4 tables; Some typographical mistakes in text and in Eq.(8) are correcte

Driven Lattice Gases with Quenched Disorder: Exact Results and Different Macroscopic Regimes

We study the effect of quenched spatial disorder on the steady states of driven systems of interacting particles. Two sorts of models are studied: disordered drop-push processes and their generalizations, and the disordered asymmetric simple exclusion process. We write down the exact steady-state measure, and consequently a number of physical quantities explicitly, for the drop-push dynamics in any dimensions for arbitrary disorder. We find that three qualitatively different regimes of behaviour are possible in 1-$d$ disordered driven systems. In the Vanishing-Current regime, the steady-state current approaches zero in the thermodynamic limit. A system with a non-zero current can either be in the Homogeneous regime, chracterized by a single macroscopic density, or the Segregated-Density regime, with macroscopic regions of different densities. We comment on certain important constraints to be taken care of in any field theory of disordered systems.Comment: RevTex, 17pages, 18 figures included using psfig.st

Eczema : Management through Ayurveda - A Case Report

Introduction: Eczema, Greek for ‘boil out’[1] is a pruritic disease associated with IgE sensitization. Usually occurring in childhood[2] with a recognised adult onset variation. The frequency of Eczema is as high as 20% in childhood and 0.9% in adults. 1/3rd of the affected individuals develop allergic rhinitis and 1/3rd develop asthma as a complication,[3] making early intervention essential. Vicharchika clinically correlates to Eczema. Management principle is primarily based on Shodhana and Raktaprasadana. Methods: The current report is based on a case of Eczema that presented as scaly skin lesions, intense itching, purulent discharge associated with tenderness and burning sensation. It was diagnosed as Vicharchika with Pittanubandha. Treatment included Raktamokshana, DeepanaPachana, Snehapana, Abhyanga and Virechana. Assessment was done based on subjective and objective parameters. Result: Reduction in pruritus, burning sensation and discharge was noted. Discussion: Ayurveda management with Kushta Chikitsa provided accelerated results in this case