84 research outputs found
An Ayurvedic approach in the management of Unexplained Infertility - A Case Study
No full textInfertility is an emerging health problem that has profound socioeconomic and health implication on both the individual and society. Unexplained Infertility is defined as the inability to conceive even after one year with routine investigations of infertility showing no abnormality; with overall incidence of 10-30%. Ayurveda explained female infertility as Vandhyatva and mentioned Garbha Sambhava Samagri (proper union of four factors like fertile period, healthy reproductive system, nutrition and healthy ovum and sperm) and Manasika Abhitapa (psychological and emotional factors) as chief factors responsible for conception. In this case study patient aged 32 years who was anxious to conceive since four years of regular and satisfactory marital relationship seeking Ayurvedic management in Ahalia Ayurveda Medical College Hospital was taken. On detailed evaluation, vitiation of Vatadosha, loss of appetite, and loss of sleep was noticed. The line of treatment followed in this case was Sadhyo Virechana (Purgation) followed Vatanulomana (pacifies Vata Dosha), Deepana (appetizers), Pachana (digestives), Garbhasthapana (maintaining pregnancy), Rasayana Chikitsa (rejuvinative) with psychological assurance that favours conception in this couple
Polyaniline doped with orthophosphoric acid - A material with prospects for optoelectronic applications
No full textPolyaniline (PANI) is one of the highly pursued conducting polymers in recent times owing to its excellent electrical and optical properties, better air stability and easy and cheap synthesis route. Doped PANI has been extensively investigated as a hole-injecting electrode in polymer light en-fitting diodes (LEDs). However, the work on doped PANI as emissive layers in polymer LEDs is quite scanty. Though there are reports on the photoluminescence characteristics of doped PANI, a detailed investigation on a comparative study of the photo luminescence in PANI doped with different dopants, which is the essence of our work, has not been carried out earlier. In the present work, we compare the photoluminescence (PL) emission intensity of PANI doped with hydrochloric acid (HCl), camphor sulphonic acid (CSA) and orthophosphoric acid, with a view to assessing the prospects of doped PANI as emissive layer in polymer LEDs. The PL emission peak is centered around 450 nm when excited at 365 nm. PANI doped with orthophosphoric acid exhibits the highest photoluminescent intensity followed by PANI doped with HCl and CSA. A comparison of the X.R.D spectra of the samples show that both HCl doped PANI and CSA doped PANI, do not show any significant crystalline nature whereas orthophosphoric acid doped PANI exhibits considerable crystallanity. The observed long-range order in orthophosphoric acid doped PANI could be a consequence of the more orderly arrangement of benzenoid and quinonoid units, resulting in enhanced PL emission intensity. (C) 2007 Elsevier B.V. All rights reserved
Review of Shodhana in Rasashastra
No full textAyurveda, the science of life is being practised by Aryans from Vedic period. Kalpana is the process through which a substance transformed into different medicine form according to the need. In Rasashastra almost all the drugs are advised to be processed with specific Shodhana process before their internal uses. Shodhana, which literally means purification and converting drug fit for further procedure. Hence, the Shodhana process is aimed to remove impurities present in the drugs. Shodhana procedure is necessary for every drug before taking it for adding in any compound or subjecting it for further processes. After Shodhana process the drug - Physical, Chemical and biological changes take place, which are required for proper therapeutic action of the end product
Enhanced luminescence observed in polyaniline-polymethylmethacrylate composites
No full textPolyaniline (PANI) is one of the highly pursued conducting polymers owing to its high electrical conductivity, interesting optical properties and excellent environmental stability. Recently, it is also being used extensively as hole-injecting electrodes in polymer LEDs. Inspite of its excellent electrical properties, the mechanical strength and processibility are not very attractive. It is reported that making composites of PANI with conventional polymers such as polymethylmethacrylate (PMMA), significantly improves the mechanical strength and processibility. Recently, we have observed that the DC electrical conductivity of HCl doped PANI can be further enhanced by making composites with PMMA. PMMA has been reported to have excellent optical properties such as very good transparency in the visible region and fairly good photoluminescence emission. This prompted us to carry out investigations on the optical properties of this composite, especially the photoluminescence characteristics. In the present work, we have synthesized PANI-PMMA composites using bulk polymerized PMMA. The FTIR spectrum reveals that PANI has been dispersed as an interpenetrating network in the PMMA matrix. The change in the photoluminescence (PL) behaviour of PANI-PMMA composites with different aniline to PMMA feed ratios has been investigated. It is observed that the photoluminescence intensity increases with increase in the PMMA content in the composite, possibly due to greater chances of exciton formation and subsequent radiative decay to the ground state. The PL spectrum of PMMA is also taken for comparison. The enhancement in the PL intensity of the composites with increase in the aniline to PMMA feed ratio is quite comparable with the enhancement in the DC electrical conductivity of these composites. (c) 2006 Elsevier B.V. All rights reserved
A Research Protocol on the Assessment of Comparative Efficacy of Svadamstradi Kalka with a Polyherbal Formulation in the Management of Mutrashmari (Urolithiasis)
No full textMutrashmari (Urolithiasis) is one of the Ashta Mahagada described by Acharya Sushruta due to its severe and recurrent nature. The term Ashmari, derived from Ashma (stone) and Ari (enemy), denotes an affliction causing excruciating pain. Modern medicine offers both surgical and non-surgical therapies such as lithotripsy and medical expulsive therapy, which, while effective, carry limitations including recurrence, cost, and adverse effects. Ayurvedic formulations have long been recognized for their Mutrala (diuretic), Ashmarighna (litholytic), and Shoolahara (analgesic) actions. Svadamstradi Kalka, described in Chakradatta, consists of Svadamstra, Ikshuraka, Kantakari, Brihati, and Urubu, Ksheera and Dadhi offering synergistic efficacy in disintegrating and expelling urinary calculi. This protocol aims to evaluate the comparative therapeutic potential of Svadamstradi Kalka with a standardized Polyherbal Formulation in the management of Mutrashmari (Urolithiasis)
Dynamic Analysis of Deep Water Tension Leg Platforms Under Random Waves
No full textThe effect of tether-riser dynamics on the response characteristics of deep water tension leg platforms in water depths 900 m and 1800 m under random waves is investigated using a developed nonlinear finite element analysis program in the time-domain. Updated Lagrangian coordinates and incremental iterative solution based on Newmark’s integration scheme are adopted. Linear wave theory is used. Relative velocity form of Morison’s equation is used for estimating the wave forces. Current forces are also included in the analysis. Results are reported in the form of statistical values of responses. The statistical values of responses are found to increase with water depth and significant increase is observed when risers are included.</jats:p
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