Dr. Ram Manohar Lohia Avadh University

Faizabad, India

Avadh University or Awadh University known as Ram Manohar Lohia Avadh University is one of the premier universities in India. It is on NH96 in Faizabad city of Uttar Pradesh province. It was established in 1975 by the government of Uttar Pradesh. Wikipedia.

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Maurya P.K.,Dr. Ram Manohar Lohia Avadh University
Clinical Medicine and Research | Year: 2016

Subacute sclerosing panencephalitis is a fatal infectious disease of childhood caused by persistence of the measles virus in the brain. The effect of human immunodeficiency virus (HIV) co-infection on subacute sclerosing panencephalitis remains elusive and rare. We report a child who developed subacute sclerosing panencephalitis following a short latency period and a rapidly progressive course with HIV co-infection. © 2016 Marshfield Clinic Health System.

Shukla S.,Dr. Ram Manohar Lohia Avadh University
2016 International Conference on Advances in Electrical, Electronic and Systems Engineering, ICAEES 2016 | Year: 2017

A new small-signal amplifying system with Sziklai pairs in triple transistor topology is proposed and qualitatively analyzed for the first time. Proposed amplifier design may be used at preamplifier stage of EEG, Radio/TV receivers and other audible frequency range communication systems. Combination of Q1-Q2 transistors in the proposed design constitutes PNP Sziklai pair whereas Q2-Q3 together acts as NPN Sziklai pair. Circuit successfully amplifies audio range signals swinging in 1μV-10mV range. It produces high voltage gain (190.95), current gain greater than unity (7.208), 250.83 KHz bandwidth, low harmonic distortion (0.817%) and can be tuned in 41Hz-250KHz frequency range. Resistance RA in the design is essential to maintain its voltage/current amplification property whereas REX can be optionally used. Proposed circuit is free from the poor response problem of small-signal Darlington pair amplifiers at higher frequencies and narrow bandwidth restrictions of recently announced PNP and NPN driven small-signal Sziklai pair amplifiers. Tuning performance, variation of voltage gain with frequency and different biasing resistances, small-signal AC analysis, harmonic distortion, temperature dependency of performance parameters and input/output noises of the circuit are widely discussed. © 2016 IEEE.

Vishwakarma S.R.,Dr. Ram Manohar Lohia Avadh University
Indian Journal of Pure and Applied Physics | Year: 2016

The n-type indium antimonide thin films of the thickness 900 nm have been fabricated by electron beam evaporation technique on ultrasonically cleaned glass substrates at different temperatures (298 K-473 K) using optimized source material. The electrical and optical properties of these films have been studied and optimized the film deposition temperature. The electrical resistivity decreases (1.50-0.25)×10-3 ohm.cm with increase of temperature up to 398 K. The Hall Effect measurement indicates that the films are n-type semiconductor having carrier concentration (0.100.040)×1018 cm-3 and mobility (3.03-53.20)×104 cm2/Vs. The type of semiconductivity has also been confirmed by TEP measurement. The direct band gap has been calculated by Fourier Transform Infrared (FTIR) transmission spectra recorded at room temperature. The direct band decreases from 0.195 to 0.180 eV with increase of substrate temperatures (298 K-473 K). The carrier concentration 0.040×1018 cm-3, Hall mobility 53.20×104 cm2/Vs, electrical resistivity 0.25×10-3 ohm.cm and direct band gap 0.18 eV have been observed for n-InSb film of 900 nm thick deposited at 398 K. © 2016, National Institute of Science Communication and Information Resources (NISCAIR). All rights reserved.

Mishra V.K.,B T Kumaon Institute Of Technology | Singh L.S.,Dr. Ram Manohar Lohia Avadh University | Kumar R.,Dr. Ram Manohar Lohia Avadh University
Journal of Industrial Engineering International | Year: 2013

In this paper, we considered a deterministic inventory model with time-dependent demand and time-varying holding cost where deterioration is time proportional. The model considered here allows for shortages, and the demand is partially backlogged. The model is solved analytically by minimizing the total inventory cost. The result is illustrated with numerical example for the model. The model can be applied to optimize the total inventory cost for the business enterprises where both the holding cost and deterioration rate are time dependent. © 2013, Mishra et al.; licensee Springer.

Sharma S.,Indian Institute of Toxicology Research | Singh R.L.,Dr. Ram Manohar Lohia Avadh University | Kakkar P.,Indian Institute of Toxicology Research
Food and Chemical Toxicology | Year: 2011

Oxidative stress is an important factor in drug induced hepatotoxicity and antioxidants from natural sources have potential to ameliorate it. The present study was aimed to investigate cyto-protective potential of probiotic Enterococcus lactis IITRHR1 (ElSN) and Lactobacillus acidophilus MTCC447 (LaSN) lysate against acetaminophen (APAP) induced hepatotoxicity. Cultured rat hepatocytes pretreated with ElSN/LaSN showed higher cell viability under APAP stress. Pre-treatment with ElSN, restored glutathione level and reduced ROS generation significantly which are major biomarkers of oxidative stress. It also reduced NO level, MDA formation and enhanced SOD activity. Pre-treatment with probiotic lysates significantly inhibited the translocation of pro-apoptotic protein (Bax), enhanced anti-apoptotic (Bcl-2) protein levels and prevented release of cyt c to cytosol; suggesting involvement of mitochondrial proteins in protection against APAP induced oxidative cellular damage. Loss in mitochondrial membrane potential due to APAP treatment was prevented in the presence of probiotic lysates. Protective action of ElSN/LaSN pretreatment was further supported by prevention of procaspase-3 activation, DNA fragmentation and chromatin condensation, in turn inhibiting APAP induced apoptotic cell death. The results indicate that probiotic preparations modulate crucial end points of oxidative stress induced apoptosis and may be used for management of drug induced liver injury. © 2010 Elsevier Ltd.

Garg S.K.,Dr. Ram Manohar Lohia Avadh University | Tripathi M.,Dr. Ram Manohar Lohia Avadh University
Reviews of Environmental Contamination and Toxicology | Year: 2011

The potential hazards associated with industrial effluents, coupled with increasing awareness of environmental problems, have prompted many countries to limit the indiscriminate discharge of untreated wastewaters. The pulp and paper industry has been among the most significant of industrial polluters of the waterways, and therefore has been one of the industries of concern. © 2011 Springer Science+Business Media, LLC.

Garg S.K.,Dr. Ram Manohar Lohia Avadh University | Tripathi M.,Dr. Ram Manohar Lohia Avadh University | Srinath T.,Indian Institute of Science
Reviews of Environmental Contamination and Toxicology | Year: 2012

Pollution of the environment by toxic metals results largely from industrial activities, although sources such as agriculture and sewage disposal also contribute to some extent (Nriagu and Pacyna 1989). Toxic metallic species, once mobilized into the environment, tend to persist, circulate, and eventually accumulate at different trophic levels in members of the food chain. Ultimately, metal pollutants pose a serious threat to the environment, and affect plants, animals, and humans (Olson and Foster 1956; Reidske 1956; Sauter et al. 1976; Levis and Bianchi 1982; Mance 1987; Xing and Okrent 1993). Metal pollutants eventually affect ecosystem function, and impose an economic and public health burden. The problems associated with wastewater disposal in developing countries can generally be attributed to lack of adequate treatment/management policies, coupled with ineffective legislation on the part of entrusted governmental agencies (The Environmental Protection Act 1991; Oboh and Aluyor 2008). Environmental awareness has grown among consumers and industrialists in recent decades, and more recently has culminated in legal constraints being imposed on emissions; such constraints have increasingly become more strict necessitating cost-effective emission control (Gadd and White 1993). © 2012 Springer Science+Business Media, LLC.

Pandey P.K.,Dr. Ram Manohar Lohia Avadh University | Jamal F.,Dr. Ram Manohar Lohia Avadh University
Pesticide Biochemistry and Physiology | Year: 2014

A trypsin inhibitor purified from the seeds of Tamarindus indica by Sephadex G-75, DEAE-Sepharose and Trypsin-Sepharose CL-4B columns was studied for its antifeedant, larvicidal, pupicidal and growth inhibitory activities against Helicoverpa armigera larvae. Tamarindus trypsin inhibitor (TTI) exhibited inhibitory activity towards total gut proteolytic enzymes of H. armigera (~87%) and bovine trypsin (~84%). Lethal doses which caused mortality and weight reduction by 50% were 1% w/w and 0.50% w/w, respectively. IC50 of TTI against Helicoverpa midgut proteases and bovine trypsin were ~2.10 μg/ml and 1.68 μg/ml respectively. In larval feeding studies the 21 kDa Kunitz-type protein was found to retard growth and development, prolonged the larval-pupal development durations along with adversely affecting the fertility and fecundity of H. armigera. In artificial diet at 0.5% w/w TTI, the efficiency of conversion of ingested food as well as of digested food, relative growth rate, growth index declined whereas approximate digestibility, metabolic cost, relative consumption rate, consumption index and total developmental period enhanced for H. armigera larvae. These results suggest that TTI has toxic and adverse effect on the developmental physiology of H. armigera and could be useful in controlling the pest H. armigera. © 2014 Elsevier Inc..

Singh S.K.,Dr. Ram Manohar Lohia Avadh University | Tripathi V.R.,Dr. Ram Manohar Lohia Avadh University | Garg S.K.,Dr. Ram Manohar Lohia Avadh University
Process Biochemistry | Year: 2012

A thermoalkaline protease with a molecular weight of 22 kDa was purified from the Bacillus cereus SIU1 strain using a combination of Q-Sepharose and Sephadex G-75 chromatography. The kinetic analyses revealed the K m, V max and k cat to be 1.09 mg ml -1, 0.909 mg ml -1 min -1 and 3.11 s -1, respectively, towards a casein substrate. The protease was most active and stable at pH 9.0 and between a temperature range of 45-55 °C. It was fully stable at 0.0-2.0% and moderately stable at 2.5-10.0% (w/v) sodium chloride. Phenyl methyl sulfonyl fluoride, ethylene diamine tetra acetic acid and ascorbic acid were inhibitory with regard to enzyme activity, whereas cysteine, β-mercaptoethanol, calcium, magnesium, manganese and copper at concentration of 1.0 mM increased enzyme activity. Sodium dodecyl sulfate, Triton X-100, Tween 80, hydrogen peroxide and sodium perborate significantly enhanced protease activity at 0.1 and 1.0% concentrations. In the presence of 0.1 and 1.0% (w/v) detergents, the protease was fairly stable and retained 50-76% activity. Therefore, it may have a possible application in laundry formulations. An initial analysis of the circular dichroism (CD) spectrum in the ultraviolet range revealed that the protease is predominantly a β-pleated structure and a detailed structural composition showed ∼50% β-sheets. The CD-based conformational evaluation of the protease after incubation with modulators, metal ions, detergents and at different pH values, revealed that the change in the β-content directly corresponded to the altered enzyme activity. The protease combined with detergent was able to destain blood stained cloth within 30 min. © 2012 Elsevier Ltd. All rights reserved.

In this study, Bacillus cereus isolate efficiently remediated 57% PCP and 74% Cr6+ simultaneously with uptake rate of 0.65 mg Cr6+ g-1 biomass h-1 at initial 200 mg Cr6+ and 500 mg PCP l-1 concentration under optimized 0.4% glucose, 0.2% NH 4Cl, pH 7.0, 35 °C, 1.0% inoculum during 60 h incubation. Optimization of agitation (100 rpm) and aeration (0.6 vvm) in bioreactor further enhanced PCP dechlorination by ∼5.0% and Cr6+ removal 7.5%. Presence of other heavy metals variedly affected bioremediation of both the toxicants. Maximum and minimum inhibition was exhibited by mercury and lead, respectively. Out of 74% Cr6+ remediated, 90% reduced to Cr 3+, of which 52.8% was associated with cell biomass and 37.2% with culture supernatant. Maximum chromate reductase activity was evident in culture supernatant followed by cytosolic fraction and cell debris. A direct correlation existed between chromate reductase activity and reduced Cr3+ in different cell fractions. Among matrices, alginate was most suitable for biomass immobilization, which enhanced Cr6+ removal by 20.2% compared to free cells at 36 h. Gas chromatography and mass spectrometry detected 2,3,4,6-tetrachlorophenol, 2,4,6-trichlorophenol, 2,6-dichlorophenol and 6-chlorohydroxyquinol as PCP dechlorination products. Our promising strain can be efficiently employed for simultaneous bioremediation of PCP and Cr 6+ under wide environmental conditions. © 2013 Elsevier Ltd. All rights reserved.

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