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Search Results: 1 - 10 of 423902 matches for " Pooja S.K. Rai "
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Antioxidants deficiency: a sensitive indicator of cardiometabolic risk in chronic renal failure?
Pooja S.K. Rai,Sangita Kamath,Amruta A. Bakshi,Smita A. Deokar
International Journal of Research in Medical Sciences , 2013, DOI: 10.5455/2320-6012.ijrms20130510
Abstract: Background: Antioxidant depletion occurring in chronic renal failure patients is an important cause of associated morbidity & mortality, which in turn imposes a great socioeconomic burden of health care. Early diagnosis & targeted management of this preventable deficiency may have a positive impact on the management of co morbidities associated with chronic renal failure. Aims & Objectives: To evaluate the status of antioxidants as an early indicator of cardiometabolic risk in chronic renal failure patients. Settings & Design: This was a randomised case Control study including 10 controls of either sex with normal renal function between age group 20-60 years and 15 patients of chronic renal failure on dialysis between the age group of 16 - 60 years. Methods: 12 hour fasting venous blood samples were collected from all the participants and were assayed for various antioxidants. Statistical analysis: Results were analyzed by unpaired t test, p value was determined & Correlation coefficient was calculated amongst various parameters. Results: In the present study, significantly low levels of vitamin C ( Cases: 0.367 ± 0.13 mg/dl controls: 1.324 ± 0.61 mg/dl; p < 0.01) & vitamin E (cases: 0.235 ± 0.102 mg/dl, controls (0.854 ± 0.28 mg/dl; p < 0.01) were observed in chronic renal failure patients as compared to controls. Conclusion: Diminished levels of Vitamin C & E in our study may be an indicator of increased oxidative stress which can be a responsible factor for increased incidence of cardiovascular complications. Supplementing these patients with recommended dosage of these vitamins may provide an essential tool to reduce the burden of suffering. [Int J Res Med Sci 2013; 1(2.000): 87-92]
Cyanobacteria of Nepal: A Checklist with Distribution
S.K. Rai,R.K. Rai,S. Jha
Our Nature , 2010, DOI: 10.3126/on.v8i1.4342
Abstract: This compilation work presents an up-to-date list of the cyanophycean algae reported by various workers in past from Nepal. It comprises a total 274 taxa belonging to 61 genera under 12 families. DOI: 10.3126/on.v8i1.4342
Imparting Antimicrobial Finish By Microencapsulation Technique
International Journal of Innovative Research in Science, Engineering and Technology , 2013,
Abstract: Microencapsulation is a process in which tiny particles or a coating to give small capsules with many useful properties surrounds droplets. There are many methods to impart various end use applications like antimicrobial property, flame proof and many more functional properties to the various substrates like polyester, nylon, polypropylene etc., and it may be that most of the application methods may be durable or temporary. The microencapsules can introduce important new qualities to garments and fabrics, such as enhanced stability and the controlled release of active compounds. Microencapsulation technique is a unique one where a controlled release of these properties as and when required are possible and also regarding the durability it can withstand for a longer duration. The present work was carried out with an objective to study the effect of clove oil, neem oil, aloe Vera powder, Benzalkonium Chloride (BKC) with certain physical and performance properties on woven fabrics like cotton, P/C blend fabric and Non-woven Polypropylene fabric by the imparting antimicrobial finish by microencapsulation technique
Finite time thermodynamic analysis and optimization of solar-dish Stirling heat engine with regenerative losses
Sharma Arjun,Shukla S.K.,Rai Kumar Ajeet
Thermal Science , 2011, DOI: 10.2298/tsci110418101s
Abstract: The present study investigates the performance of the solar-driven Stirling engine system to maximize the power output and thermal efficiency using the non-linearized heat loss model of the solar dish collector and the irreversible cycle model of the Stirling engine. Finite time thermodynamic analysis has been done for combined system to calculate the finite-rate heat transfer, internal heat losses in the regenerator, conductive thermal bridging losses and finite regeneration process time. The results indicate that exergy efficiency of dish system increases as the effectiveness of regenerator increases but decreases with increase in regenerative time coefficient. It is also found that optimal range of collector temperature and corresponding concentrating ratio are 1000 K~1400 K and 1100~1400, respectively in order to get maximum value of exergy efficiency. It is reported that the exergy efficiency of this dish system can reach the maximum value when operating temperature and concentrating ratio are 1150 K and 1300, respectively.
Significance of Moisture Management for High Performance Textile Fabrics
International Journal of Innovative Research in Science, Engineering and Technology , 2013,
Abstract: Moisture management is one of the key performance criteria in today’s apparel industry, which decides the comfort level of that fabric. Apparel manufacturers have shifted their attention to the high-performance end of the moisture management fabric market and consumers place increasing importance on the performance of garments. This paper describes the need of moisture management in textile apparel, aims of development of moisture management fabrics, technical approach towards moisture management, desired attributes of moisture management fabric, route of moisture management, factors influencing wetting and wicking, various concepts of moisture managing textiles, developments in moisture management techniques and functional fields of application of moisture management technique.
Significance Of Moisture Management In Textiles
International Journal of Innovative Research in Science, Engineering and Technology , 2013,
Abstract: Comfort is one of the most important aspects of all clothing. In this research an attempt has been made to finish the fabric with various softeners. Four different types of bleached fabrics like cotton, heavy cotton, P/ V blend, P/C blend were used for the study. These fabrics were treated with softeners like Anionic, Nonionic, PE Emulsion, Amino Silicone, Micro Amino Silicone, Reactive Softener, Glycerin, Micro Silicone and hydrophilic silicones like Silkofeel HP 678, Silkofeel HP 387 to improve the comfort properties of fabrics. The softener concentrations were varied as 10 gpl, 20 gpl, 30 gpl and 40 gpl. The results have shown that the fabrics treated with Silkofeel HP 678 had significant improvement in all comfort properties like wicking, water absorbency, air permeability, bending length.
Genetic divergence and its implication in breeding of desired plant type in coriander -Coriandrum sativum L.-
Singh S.P.,Katiyar R.S.,Rai S.K.,Tripathi S.M.
Genetika , 2005, DOI: 10.2298/gensr0502155s
Abstract: Seventy germplasm lines of coriander (Coriandrum sativum L.) of diverse eco-geographical origin were undertaken in present investigation to determine the genetic divergence following multivariate and canonical analysis for seed yield and its 9 component traits. The 70 genotypes were grouped into 9 clusters depending upon the genetic architecture of genotypes and characters uniformity and confirmed by canonical analysis. Seventy percent of total genotypes (49/70) were grouped in 4 clusters (V, VI, VIII and IX), while apparent diversity was noticed for 30 percent genotypes (21/70) that diverged into 5 clusters (I, II, III, FV, and VII). The maximum inter cluster distance was between I and IV (96.20) followed by III and IV (91.13) and I and VII (87.15). The cluster VI was very unique having genotypes of high mean values for most of the component traits. The cluster VII had highest seeds/umbel (35.3 ± 2.24), and leaves/plant (12.93 ± 0.55), earliest flowering (65.05 ± 1.30) and moderately high mean values for other characters. Considering high mean and inter cluster distance breeding plan has been discussed to select desirable plant types.
Evaluation of antibiotics and their suitable use against bacterial blight of paddy [Xanthomonas oryzae pv. oryzae (Ishiyama) Dye]
Indian Phytopathology , 2011,
Economic Assessment of Granite Quarrying in Oyo State, Nigeria
S.K. Osasan
Journal of Engineering and Applied Sciences , 2012,
Abstract: For centuries, the mining industry has been contributing to the development of nations, a vibrant mining sector like any other sector provides good platform for a country s growth. Quarrying, a branch of mining is one of the bedrock of the construction sector in any economy. This study examines the economic contribution of granite quarrying in Oyo State, South-Western Nigeria. Fourteen granite quarrying companies exist in the state, out of which twelve are operational. The twelve quarries were visited in the course of this study and relevant data were gathered from them. All the companies share a total of 220.7x106 tons of proven granite reserve. Estimated revenue generated by the federal government is 500,000 day-1. A total of 845 people are directly employed by the quarries, while 1018 people are employed indirectly in the company s community. The study also revealed a substantial increase in the level of income of the indirect employees after relocating to their businesses to the company s community. It was equally discovered that 80% of the granite produced in the state is sold and used in Lagos state (a neighbouring state). Granite quarrying in Oyo state is very profitable and rewarding for investors but government should improve power supply to encourage investors and reduce the cost of operating the quarries.
The Development of a Novel in vitro Model Using Kidney Biopsy Specimens to Study the Effects of Warm and Cold Ischaemia on the Kidney
S.K. Tagboto
Cell & Tissue Transplantation & Therapy , 2012,
Abstract: Traditional experimental methods of assessing renal function typically rely on whole kidneys and subsequent measures of glomerular filtration rate. In this study, we measured the viability of kidney biopsy samples of fixed length using formazan-based colorimetry in an attempt to evaluate the suitability of this assay in predicting whole organ viability. A series of experiments were set up to study the response of the ischaemic rabbit kidney tissue of fixed length (5 mm) obtained using a 16-gauge needle to various preservative solutions at various temperatures. Samples were maintained at 37 °C in a Hereaus EK/O2 incubator in an atmosphere of 5% CO2 in air, or at 1–4 °C in a Labheat incubator (Borolabs, U.K.) or at 20 °C in air for up to 96 hours. The formation of formazan within renal biopsy cores was most rapid during the first hour and then levelled off for the rest of the assay period (4 hours). Formazan formation was marginally more from renal cortex than medulla, although the differences were not statistically significant. The viability of kidney tissue was temperature dependent such that incubating a non-perfused kidney for 20 hours resulted in a 90% reduction in formazan formation and therefore viability at 37 °C compared to 1 °C. Formazan formation from rabbit kidney biopsy samples taken on day 0 and placed singly wells of a 24 well at-bottomed tissue culture plate containing 1.8 ml of preservative solution was assessed daily for 4 days. This was compared with the viability of tissue taken daily from whole kidneys perfused with the same preservative solution. Initial viability assessments were similar as were changes with time. This assay was able to demonstrate the superiority of the currently available renal preservative solutions Soltran and Viaspan in maintaining the viability of renal tissue at low temperatures compared with other randomly selected solutions. In conclusion, maintaining freshly obtained renal biopsy samples in a tissue culture system is a cheap, convenient and potentially useful model of renal ischaemia. Biochemical tests of cellular viability including formazan based colorimetry on isolated tissue may offer the opportunity to study the effects of ischaemia on the kidney, and may aid in the development of drugs for treating renal ischaemia.
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