oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

时间不限

2019 ( 46 )

2018 ( 259 )

2017 ( 277 )

2016 ( 449 )

自定义范围…

匹配条件: “Balaraman R” ,找到相关结果约223627条。
列表显示的所有文章,均可免费获取
第1页/共223627条
每页显示
Protective Effects of Lagenaria siceraria (Molina) Fruit Juice in Isoproterenol Induced Myocardial Infarction
A. Upaganlawar,R. Balaraman
International Journal of Pharmacology , 2010,
Abstract: Present study was carried to evaluate the protective effect of Lagenaria siceraria fruit juice (LSFJ) in isoproteranol (ISO) induced myocardial infarction in rats. Rats treated with ISO (200 mg kg-1, s.c.) for two consecutive days at an interval of 24 h resulted in a significant (p<0.001) alteration in cardiac marker enzymes (alkaline phosphatase, Lactate dehydrogenase, creatine kinase-MB, serum Aspartate Transaminase and alanine Transaminase), lipid peroxidation and endogenous antioxidants activities (reduced glutathione, glutathione peroxidase, glutathione s-transferase, superoxide dismutase and catalase). It also showed alteration in electrocardiographic and hemodynamic parameters. Treatment with LSFJ (400 mg/kg/day, p.o.) for 30 days and challenged with ISO on 29th and 30th day showed a protective effect on serum marker enzymes, LPO, endogenous antioxidants activity, electrocardiographic and hemodynamic changes. These finding indicates, protective effect of LSFJ during isoproterenol induced myocardial infarction and associated oxidative stress in rats.
Effect of chronic administration of green tea extract on chemically induced electrocardiographic and biochemical changes in rat heart
Patil Leena,Bothara Sunil,Balaraman R
International Journal of Green Pharmacy , 2010,
Abstract: Many chemicals induce cell-specific cytotoxicity. Chemicals like doxorubicin induce oxidative stress leading to cardiotoxicity causing abnormalities in ECG and increase in the biomarkers indicating toxicity. Green tea extract (GTE), Camellia sinensis (Theaceae), is reported to exert antioxidant activity mainly by means of its polyphenolic constituent, catechins. Our study was aimed to find out the effect of GTE (25, 50, 100 mg/kg/day p.o. for 30 days) on doxorubicin-induced (3 mg/kg/week, i.p. for 5 weeks) electrocardiographic and biochemical changes in rat heart. It is observed that GTE administered rats were less susceptible to doxorubicin-induced electrocardiographic changes and changes in biochemical markers like lactate dehydrogenase (LDH), creatine kinase (CK), and glutamic oxaloacetate transaminase (GOT) in serum, and superoxide dismutase (SOD), catalase (CAT) and reduced glutathione (GSH), membrane bound enzymes like Na + K + ATPase, Ca 2+ ATPase, Mg 2+ ATPase and decreased lipid peroxidation (LP) in heart tissue, indicating the protection afforded by GTE administration.
Occurrence and diversity of mosquitocidal strains of Bacillus thuringiensis
K. Balaraman
Journal of Vector Borne Diseases , 2005,
Abstract: Ever since the discovery of the first Bacillus thuringiensis strain capable of killing mosquito larvae,namely, B. thuringiensis var israelensis, there are several reports from different parts of the worldabout the occurrence of mosquitocidal strains belonging to different subspecies/serotypes numberingthirty-six. The main sources of these wild type strains are soils/sediments, plants, animal feces,sick/moribund insects and waters. The toxicity of the strains within a subspecies/serotype variedwidely. Some of the strains exhibited toxicity to mosquitoes as well as lepidopterans and dipterans(including mosquitoes) as well as plant parasitic nematodes.
Mitigation of Voltage Unbalance in Traction System
B.R.Lakshmikantha,Dr Murugesh Mudaliar,Dr K.Balaraman,Dr R.Nagaraja
Lecture Notes in Engineering and Computer Science , 2008,
Abstract:
Phase Transition Behavior of Nanocrystalline Al2O3 Powders  [PDF]
Balaraman Sathyaseelan, Iruson Baskaran, Kandasamy Sivakumar
Soft Nanoscience Letters (SNL) , 2013, DOI: 10.4236/snl.2013.34012
Abstract: Alumina (Al2O3) has been synthesized through combustion synthesis (CS) technique. The calcined products were characterized using X-ray diffractional analysis (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and thermo-gravimetric analysis (TGA). TG-DTA results reveal the various stages involved in transition from γ-phase to α-Al2O3 phase. The first phase γ-Al2O3 was presented in the temperature range from 600°C-875°C as deduced from the XRD patterns with cubic crystal structure. The second stage occurs in the temperature range from 900°C-1000°C. In the final step, above 1000°C, the aluminium oxide appears completely as α-Al2O3, showing high crystallinity. The particle sizes are closely related to γ- to α-Al2O3 phase transition.
Hemidesmus indicus and Hibiscus rosa-sinensis Affect Ischemia Reperfusion Injury in Isolated Rat Hearts
Vinoth Kumar Megraj Khandelwal,R. Balaraman,Dezider Pancza,Táňa Ravingerová
Evidence-Based Complementary and Alternative Medicine , 2011, DOI: 10.1155/2011/802937
Abstract: Hemidesmus indicus (L.) R. Br. (HI) and Hibiscus rosa-sinensis L. (HRS) are widely used traditional medicine. We investigated cardioprotective effects of these plants applied for 15 min at concentrations of 90, 180, and 360 g/mL in Langendorff-perfused rat hearts prior to 25-min global ischemia/120-min reperfusion (I/R). Functional recovery (left ventricular developed pressure—LVDP, and rate of development of pressure), reperfusion arrhythmias, and infarct size (TTC staining) served as the endpoints. A transient increase in LVDP (32%–75%) occurred at all concentrations of HI, while coronary flow (CF) was significantly increased after HI 180 and 360. Only a moderate increase in LVDP (21% and 55%) and a tendency to increase CF was observed at HRS 180 and 360. HI and HRS at 180 and 360 significantly improved postischemic recovery of LVDP. Both the drugs dose-dependently reduced the numbers of ectopic beats and duration of ventricular tachycardia. The size of infarction was significantly decreased by HI 360, while HRS significantly reduced the infarct size at all concentrations in a dose-dependent manner. Thus, it can be concluded that HI might cause vasodilation, positive inotropic effect, and cardioprotection, while HRS might cause these effects at higher concentrations. However, further study is needed to elucidate the exact mechanism of their actions.
Efficient Computation of the Shapley Value for Game-Theoretic Network Centrality
Tomasz Pawel Michalak,Karthik V Aadithya,Piotr L. Szczepanski,Balaraman Ravindran,Nicholas R. Jennings
Computer Science , 2014, DOI: 10.1613/jair.3806
Abstract: The Shapley value---probably the most important normative payoff division scheme in coalitional games---has recently been advocated as a useful measure of centrality in networks. However, although this approach has a variety of real-world applications (including social and organisational networks, biological networks and communication networks), its computational properties have not been widely studied. To date, the only practicable approach to compute Shapley value-based centrality has been via Monte Carlo simulations which are computationally expensive and not guaranteed to give an exact answer. Against this background, this paper presents the first study of the computational aspects of the Shapley value for network centralities. Specifically, we develop exact analytical formulae for Shapley value-based centrality in both weighted and unweighted networks and develop efficient (polynomial time) and exact algorithms based on them. We empirically evaluate these algorithms on two real-life examples (an infrastructure network representing the topology of the Western States Power Grid and a collaboration network from the field of astrophysics) and demonstrate that they deliver significant speedups over the Monte Carlo approach. For instance, in the case of unweighted networks our algorithms are able to return the exact solution about 1600 times faster than the Monte Carlo approximation, even if we allow for a generous 10% error margin for the latter method.
E-Commerce Evaluation and E Business Trends
Premkumar Balaraman,Kalpana Kosalram
International Journal of Information Engineering and Electronic Business , 2012,
Abstract: E–Commerce in recent times has exploded many folds due to the invention of new Information and Communication (ICT) technologies and applications. Business models of today are highly depending upon internet based transaction and trading platforms, use of Web portals and mobile applications. Proposition of new business models sans the inclusion of internet and their application has become almost impossible for business. Business data pertaining to E Commerce has become highly valuable in recent times. Social networking websites, sharing of product data and its reviews in blogs paves ways for promoting business in new methods. There is need to develop metrics to assess the strength of E Commerce penetration in Business and also evaluate the various E Commerce platforms. Use of E business tools for data analysis, prediction and decision making has become the latest order of the day. Changing trends in E business has a drastic impact on the organizations depending upon internet based applications for handling its business processes and day to day transactions.
Application of Differential Evolution for Congestion Management in Power System
Sujatha Balaraman,Kamaraj N
Modern Applied Science , 2010, DOI: 10.5539/mas.v4n8p33
Abstract: In the emerging restructured power system, the congestion management (CM) has become extremely important in order to ensure the security and reliability of the system. This paper proposes an algorithm for congestion management in a pool based electricity market based on differential evolution (DE). The aim of the proposed work is to minimize deviations from preferred transaction schedules and hence the congestion cost. Numerical results on test system namely IEEE 30 Bus System is presented for illustration purpose and the results are compared with Particle swarm optimization (PSO) in terms of solution quality. The comprehensive experimental results prove that the DE is one among the challenging optimization methods which is indeed capable of obtaining higher quality solutions for the proposed problem.
Study on Enhanced Antibacterial and Cytotoxicity of Pure and Cadmium Doped Cerium Oxide against Gram-Positive and Gram-Negative Bacteria  [PDF]
Killivalavan Govindarasu, Kavitha Gnanasekaran, Sathyaseelan Balaraman, Baskaran Iruson, Senthilnathan Krishnamoorthy, Sathyaseelan Balaraman, Babu Padmaraj, Elayaperumal Manikandan, Sivakumar Dhananjayan
Soft Nanoscience Letters (SNL) , 2019, DOI: 10.4236/snl.2019.91001
Abstract: Pure and Cadmium (Cd) doped Cerium oxide nanoparticles (CeNPs) have been synthesised by the simple chemical co-precipitation technique. Cadmium ions of concentrations 1, 3 and 5 mol% were doped to investigate their influence on the structural and optical properties of CeO2. The synthesised samples have been subjected to X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) analysis and high-resolution transmission electron microscopy (HRTEM). The XRD and Raman patterns have witnessed the cubic structure of the cerium oxide nanoparticles. The average particle size of CeO2 was found to be around 10 nm. SEM image has also ascertained that the grain size of pure CeO2 appeared is bigger than that of the Cd-doped, which intern indicates the grain growth upon doping. Besides, the antibacterial activity of the cadmium doped cerium oxide nanoparticles against some human pathogens revealed that they have exhibited the maximum zone of inhibition against gram-positive bacteria than the gram-negative species. Further, the cytotoxic effect of Cd-doped CeO2 sample is examined in cultured (MCF-7, A549 and Hep-2) cell.
第1页/共223627条
每页显示


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.