Rashtrasant Tukadoji Maharaj Nagpur University

www.nagpuruniversity.org
Nagpur, India

Rashtrasant Tukadoji Maharaj Nagpur University , formerly known as Nagpur University, was established on August 4, 1923 in the city of Nagpur in the Maharashtra state of central India. Named after Tukdoji Maharaj, its focus was in teaching languages of India, including Sanskrit, Marathi, Hindi and Urdu. The institution has offered a medical degree since 1947. The university was divided on May 1, 1983, when some of its facilities were rededicated to the creation of Amravati University. It is the member of Association Of Indian Universities. It has been accredited with the highest, A Grade by the National Assessment and Accreditation Council , New Delhi. It is now labeled as one of the toughest universities in the country due to its strict assessment and extremely high standards of academia. It has also once been ranked amongst some of the top Universities in India. Wikipedia.

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Narule M.N.,Rashtrasant Tukadoji Maharaj Nagpur University
Journal of Chemical and Pharmaceutical Research | Year: 2011

2-acetyl pyrrole undergoes condensation with aromatic aldehydes to yield 2-((3-aryl) propan-1- one) pyrroles 1, which on cyclization with phenyl hydrazine gives 2-((1-phenyl, 5-aryl)-pyrazol- 3-yl) pyrroles 2. Reaction of 2, 3, 4, 6-tetra-O-acetyl- β -D-glucopyranosyl bromide with these 2- ((1-phenyl, 5-aryl)-pyrazol-3-yl) pyrroles afford 1-N- (2, 3, 4, 6-tetra-O-acetyl- β -Dglucopyranosyl)- 2-((1-phenyl, 5-aryl)-1H-pyrazol-3-yl) pyrroles 3, which on deacetylation gives 1-N- (β-D-glucopyranosyl)-2-((1-phenyl, 5-aryl)-1H-pyrazol-3-yl) pyrroles 4. The structures of synthesized products have been characterized on the basis of FT-IR, 1HNMR, FAB-MS, optical activity and elemental analysis. The title compounds are found to have antibacterial and antifungal activities.


Dhoble S.J.,Rashtrasant Tukadoji Maharaj Nagpur University
Renewable and Sustainable Energy Reviews | Year: 2012

This paper reflects the achievements and the challenges ahead in the field of organic light emitting diodes (OLEDs). The primary intention of this paper is to study different organic materials synthesized so far and the OLEDs fabricated for solid-state lighting. After deep review of literature we have synthesized and characterized rare earth based europium organic complexes Eu(TTA) 3Phen, Eu (x)Y (1-x)(TTA) 3Phen, and Eu (x)Tb (1-x)(TTA) 3Phen, where x = 0.4 and 0.5 by solution technique maintaining stoichiometric ratio. Blended films of pure and doped Eu complexes that are molecularly doped into polymer resins namely polymethylmethacrylate (PMMA) and polystyrene (PS) are prepared according to weight percentage. Concentration effect on absorption and emission spectra of the blended films was studied for different weight percentages (10, 25, 50, 60%). All the complexes doped in PMMA showed an excellent transparency of 90-97% while the complexes doped in polystyrene showed a transparency of 85-90%, bit less than in PMMA. Energy gap of the synthesized complexes have been determined in PMMA and PS. Considering the facts that these complexes have good solubility in most of the organic solvents, the absorption spectra of Eu(TTA) 3Phen, Eu 0.5Y 0.5(TTA) 3Phen and Eu 0.5Tb 0.5(TTA) 3Phen complexes are studied, and OLED devices having the structure ITO/m-MTDATA/α-NPD/TPBi:Eu (x)Y (1-x)(TTA) 3Phen/Alq 3/LiF:Al (where x = 0.4, 0.5) were fabricated and characterized. Significant red emission was observed from fabricated OLED devices at 612 nm when operated in a range of 10-18 V. Thus the synthesized rare earth based organic complexes are the best suitable candidates for fabrication of red OLED devices. The extensive review on OLEDS concludes that our present lighting system can be replaced with white OLEDS, recently developed energy saving lighting technology. © 2012 Elsevier Ltd. All rights reserved.


Thejokalyani N.,Laxminarayan Institute of Technology | Dhoble S.J.,Rashtrasant Tukadoji Maharaj Nagpur University
Renewable and Sustainable Energy Reviews | Year: 2014

This paper emphasizes on the novel approaches for energy efficient and eco-friendly solid state lighting. Limitations and global haphazards of currently used lighting systems such as Incandescent lamps, compact fluorescent lamps can be overcome by replacing the present lighting system by green technology called solid state lighting, which is possible only with organic light emitting diodes (OLEDs) and polymer light emitting diodes (PLEDs). This paper also explains important characterization techniques used to evaluate the performance, efficiency, life time; colour rendering index (CRI), Internationale de l'Eclairage (CIE) coordinates and correlated color temperature (CCT) of OLEDs. Review of literature on red, blue, green (RBG) light emitting materials and OLED devices is illustrated since the very first synthesized complex and a range of device architectures are presented and appraised. Measures to increase the efficiency and the life time of OLEDs and handling the degradation issues of the organic materials for OLEDs are also discussed. With these measures if we succeed in improving the efficiency, performance and life time, the present lighting system can be replaced by eco-friendly, energy efficient green technology called Solid state lighting, which would play a significant role in reducing global energy consumption. © 2014 Elsevier Ltd. All rights reserved.


Thejo Kalyani N.,Laxminarayan Institute of Technology | Dhoble S.J.,Rashtrasant Tukadoji Maharaj Nagpur University
Renewable and Sustainable Energy Reviews | Year: 2015

Around 20% of the electrical power generated on the planet is consumed inefficiently in lighting application. With the running out of the fossil fuels; lighting utilization will seriously contribute to the worldwide energy problem in the approaching future. Hence measures are to be taken right from this instant in order to conquer the power shortage problem by efficiently utilizing the available power. White organic light-emitting diodes (WOLEDs) and displays represent the next generation energy-saving light source to alleviate the energy crisis. Within the last decade OLEDs have become an internationally highly recognized unique area light source, which has immense potential for the recent display applications and paves a novel path to create white light. This paper reflects the recent advances in the OLED materials and the critical tactics employed in designing the anatomy of OLED devices for energy-saving solid-state lighting (SSL) towards lighting revolution. Novel transparency electrodes for flexible OLEDs, the stability of OLEDs, topical progress regarding various materials used for different layers to fabricate eco friendly and energy efficient OLEDs by innovative fabrication techniques and the necessity of encapsulation are also discussed. In addition, the ongoing challenges and future perspectives of this research frontier with certain measures that can be employed to reduce the driving voltage, minimize the degradation issues and augmentation of their life time are illustrated. Once we accomplish the said challenges, OLEDs can be considered as next generation flat panel displays and solid state lighting sources, which would proffer a world of expanding opportunities in the field of lighting. © 2014 Elsevier Ltd. All rights reserved.


Manna S.S.S.,Rashtrasant Tukadoji Maharaj Nagpur University | Umathe S.N.,Rashtrasant Tukadoji Maharaj Nagpur University
Epilepsy Research | Year: 2012

Anandamide, an endogenous agonist of CB1 receptors, also activates TRPV1 but at a higher concentration. Studies demonstrate the anticonvulsant activity of anandamide via CB1 receptors, while its action through TRPV1 is still ambiguous. Thus, the present study investigated the influence of anandamide on pentylenetetrazole-induced seizures in mice pretreated with TRPV1 or CB1 receptor antagonists. Acute intracerebroventricular administration of low doses of anandamide (10, 20, or 40μg/mouse) produced anticonvulsant effect, while the pro-convulsant effect was evident at high doses (80 or 100μg/mouse). Interestingly, AM251 (2μg/mouse), a CB1 antagonist pretreatment blocked the anticonvulsant effect, but augmented the pro-convulsant effect. Conversely, in the presence of inactive dose of capsazepine (1μg/mouse), a TRPV1 antagonist, anandamide exhibited significant anticonvulsant effect even at high doses with no change in its anticonvulsant effect. Moreover, mice treated with capsaicin, a TRPV1 agonist (10, or 100μg/mouse) exhibited pro-convulsant activity that was blocked by capsazepine pretreatment. However, capsazepine, per se at doses 10 or 100μg/mouse exhibited anticonvulsant effect. Like anandamide, the agents (AM404 and URB597), which increase its synaptic concentrations produced similar biphasic effects. Thus, these results indicate that anandamide exhibits both pro- and anticonvulsant activities by activating TRPV1 and CB1 receptor respectively. © 2012 Elsevier B.V.


Surface-active potential of biosurfactants produced cost-effectively in curd whey by Pseudomonas aeruginosa strain-PP2 and Kocuria turfanesis strain-J were tested using parameters viz. surface tension (ST) reduction, F(CMC) (highest dilution factor to reach critical micelle concentration) and emulsification index (EI-24) of pesticides; monocrotophos and imidacloprid at extreme environmental conditions. Results have shown that ST reduction of biosurfactants was stable at pH 2-11. High F(CMC) of the biosurfactant in the fermented whey at low pH improved emulsification of pesticides. ST marginally increased at 5% and 15% NaCl, resulting in high EI-24 and F(CMC). Over a range of temperatures 30-121 °C, ST remained low with a higher F(CMC) and EI-24 at 60 °C than at 121 and 30 °C. The biosurfactants have shown differences in their surface-active property and have marked specificity to emulsify pesticides in extreme environmental conditions. Copyright © 2012 Elsevier Ltd. All rights reserved.


Tangde V.M.,Rashtrasant Tukadoji Maharaj Nagpur University
AIP Conference Proceedings | Year: 2013

The discipline, today known as Quantum Chemistry for atomic and subatomic level interactions has no doubt made a significant historical contributions to the society. Despite of its significant achievements, quantum chemistry is also known for its widespread denial of insufficiencies it inherits. An Italian-American Scientist Professor Ruggero Maria Santilli during his more than five decades of dedicated and sustained research has denounced the fact that quantum chemistry is mostly based on mere nomenclatures without any quantitative scientific contents. Professor R M Santilli first formulated the iso-, geno- and hyper-mathematics [1-4] that helped in understanding numerous diversified problems and removing inadequacies in most of the established and celebrated theories of 20th century physics and chemistry. This involves the isotopic, genotopic, etc. lifting of Lie algebra that generated Lie admissible mathematics to properly describe irreversible processes. The studies on Hadronic Mechanics in general and chemistry in particular based on Santilli's mathematics[3-5] for the first time has removed the very fundamental limitations of quantum chemistry [2, 6-8]. In the present discussion, we have briefly reviewed the conceptual foundations of Hadronic Chemistry that imparts the completeness to the Quantum Chemistry via an addition of effects at distances of the order of 1 fm (only) which are assumed to be Non-linear, Non-local, Non-potential, Non-hamiltonian and thus Non-unitary and its application in development of a new chemical species called Magnecules. © 2013 AIP Publishing LLC.


Tangde V.M.,Rashtrasant Tukadoji Maharaj Nagpur University
AIP Conference Proceedings | Year: 2012

The decades of research of R M Santilli resulted into the formulation of iso-, geno- and hyper- mathematics [1,2] that helped in understanding numerous diversified problems and removing inadequacies in most of the established and celebrated theories of 20th century physics and chemistry, for example, the theories of relativity, quantum mechanics (chemistry), astrophysics, particle physics, and so on. This involves the isotopic, genotopic, etc. lifting of Lie algebra that generated Lie admissible mathematics to properly describe irreversible processes. The studies on Hadronic m Mechanics based on Santilli's mathematics for the first time has removed the very fundamental limitations of quantum chemistry [3, 4] [2,3, 4]. Herein, we review a Santilli-Shillady model[3, 4, 5] of hydrogen and water molecules characterized by a bond at short distances of the two valance electrons into a singlet quasi-particle state called isoelectronium for hydrogen molecule and two isoelctronia (one per H-O dimer) in case of water molecule. We especially emphasis on: the numerically exact representation of binding energies from unadulterated first axiomatic principle, the reduction of the hydrogen molecule to a restricted three body problem that admits exact analytic solutions and the reduction of computer time by at least a factor of 1000 folds due to a much faster convergent series. © 2012 American Institute of Physics.


Meshram C.,Rashtrasant Tukadoji Maharaj Nagpur University
Information Processing Letters | Year: 2015

ID-based encryption (identity-based) is a very useful tool in cryptography. It has many potential applications. The security of traditional ID-based encryption scheme wholly depends on the security of secret keys. Exposure of secret keys requires reissuing all previously assigned encryptions. This limitation becomes more obvious today as key exposure is more common with increasing use of mobile and unprotected devices. Under this background, mitigating the damage of key exposure in ID-based encryption is an important problem. To deal with this problem, we propose to integrate forward security into ID-based encryption. In this paper, we propose a new construction of ID-based encryption scheme based on integer factorization problem and discrete logarithm problem is semantically secure against chosen plaintext attack (CPA) in random oracle model. We demonstrate that our scheme outperforms the other existing schemes in terms of security, computational cost and the length of public key. © 2014 Elsevier B.V. All rights reserved.


Khandale A.P.,Rashtrasant Tukadoji Maharaj Nagpur University | Bhoga S.S.,Rashtrasant Tukadoji Maharaj Nagpur University
Journal of Power Sources | Year: 2010

It is found that the solid solubility of Ce in Nd2-xCe xCuO4±δ is limited up to x = 0.2. A semiconductor to metallic transition is observed at 600 °C in d.c. conductivity data, which coincides with a transition in temperature-dependent area-specific resistance (ASR). Nd1.8Ce0.2CuO 4±δ is thermodynamically and chemically stable against gadolinia-doped ceria (GDC) up to 1200 °C. On the other hand, it reacts with a yttria-stabilized zirconia electrolyte to form Nd2Zr 2O7. At 700 °C, the ASR of a Nd1.8Ce 0.2CuO4±δ/GDC/Nd1.8Ce 0.2CuO4±δ cell sintered at 800 °C is 0.13 ohm cm2, and the ASR proportionally improves with increase in the sintering temperature of the electrochemical cell. The improved ASR and electrochemical performance are attributed to the nanocrystalline nature of the cathode material. © 2010 Elsevier B.V. All rights reserved.

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