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Search Results: 1 - 10 of 213634 matches for " U. N. Dwivedi "
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Analysis of Simple Sequence Repeats Information from Floral Expressed Sequence Tags Resources of Papaya (Carica papaya L.)  [PDF]
Priyanka Priyanka, Dileep Kumar, Anurag Yadav, Kusum Yadav, U. N. Dwivedi
American Journal of Plant Sciences (AJPS) , 2017, DOI: 10.4236/ajps.2017.89155
Abstract: Papaya (Carica papaya L.) is one of the most economically, medicinally and nutritionally important tropical fruit crops. Expressed sequence tags (ESTs) derived simple sequence repeat (SSR) markers are more valuable as they are derived from conserved genic portion. Development of EST-SSRs markers through in silico approach is cheaper, less time consuming and labour-intensive. In this study, we aimed to mine SSRs and developed EST-SSR primers from papaya floral ESTs. A total of 75,846 papaya floral ESTs were downloaded from public database National Centre for Biotechnology Information (NCBI). A total of 26,039 floral unigenes (7961 contigs and 18,078 singletons) were generated after assembly of these ESTs. From these floral unigenes, 433,782 perfect SSRs, 204,968 compound SSRs and 6061 imperfect SSRs were mined, respectively.
Power Quality Monitoring and Analysis: An Overview and Key Issues
U.D. Dwivedi,Deepti Shakya,S.N. Singh
International Journal of Systems Signal Control and Engineering Application , 2012,
Abstract: Power quality (PQ) issue is rising due to more penetration of power electronics derives used for improvement in the efficiency, control etc. The ongoing regulatory policy and structural changes in the electricity industry all over the world have also contributed toward major concern of PQ, making it a figure-of-merit amongst the competing distribution utilities. In this stduy, a comprehensive overview of different PQ problems, their cause, effects and suitable existing remedies has been presented. Various standards evolved to define and characterize different PQ problems as well as voltage acceptability curves proposed to quantify PQ are critically reviewed. Need objective or requirement and challenges of intelligent monitoring system using advanced signal processing and artificial intelligence tools for detection and classification of PQ disturbances have also been critically examined in this stduy. Advanced and powerful tools for the analysis, operation and control of power systems, as well as for PQ diagnosis are currently available. A comparative study has been carried out on the applicability of the state of the art techniques for assessment and analysis of PQ, which include both nonparametric decomposition based and model based techniques. Major Key issues and challenges in analyzing PQ are also outlined.
Bilateral single system ectopic ureters: Case report with literature review
Kumar A,Goyal N,Trivedi S,Dwivedi U
African Journal of Paediatric Surgery , 2008,
Abstract: Bilateral single system ureteral ectopia (BSSEU) is one of the rarest entities in urology, with less than 80 cases reported so far. Incontinence resulting from the underlying anomaly can be devastating to the child. It is generally agreed that suitable urinary continence and long dry intervals are seldom obtainable because of poorly developed trigone and bladder neck area. We herein report a case of BSSEU managed by bilateral ureteric reimplantation, achieving satisfactory continence and bladder capacity without the need for urinary diversion or bladder neck reconstruction.
Power Quality Monitoring and Analysis: An Overview and Key Issues
U.D. Dwivedi, Deepti Shakya and S.N. Singh
International Journal of Systems Signal Control and Engineering Application , 2008,
Abstract: Power quality (PQ) issue is rising due to more penetration of power electronics derives used for improvement in the efficiency, control etc. The ongoing regulatory policy and structural changes in the electricity industry all over the world have also contributed toward major concern of PQ, making it a figure-of-merit amongst the competing distribution utilities. In this stduy, a comprehensive overview of different PQ problems, their cause, effects and suitable existing remedies has been presented. Various standards evolved to define and characterize different PQ problems as well as voltage acceptability curves proposed to quantify PQ are critically reviewed. Need objective or requirement and challenges of intelligent monitoring system using advanced signal processing and artificial intelligence tools for detection and classification of PQ disturbances have also been critically examined in this stduy. Advanced and powerful tools for the analysis, operation and control of power systems, as well as for PQ diagnosis are currently available. A comparative study has been carried out on the applicability of the state of the art techniques for assessment and analysis of PQ, which include both nonparametric decomposition based and model based techniques. Major Key issues and challenges in analyzing PQ are also outlined.
Aeromonas caviae septicemia in immunocompetent gastrointestinal carriers
Dwivedi, M.;Mishra, A.;Prasad, A.;Azim, A.;Singh, R.K.;Baronia, A.K.;Prasad, K.N.;Dwivedi, U.N.;
Brazilian Journal of Infectious Diseases , 2008, DOI: 10.1590/S1413-86702008000600023
Abstract: aeromonas caviae strains have been isolated from blood and stool cultures of three immunocompetent patients, residents of northern india, who presented with community acquired septicemia without any recent history of diarrhea. cell culture infectivity test performed on hep-2 cells have shown substantial degree of invasiveness in the isolated strains. this case unleashes a possibility of asymptomatic gastrointestinal carriage of such strains of a. caviae in a very large population of india, as several areas of india have very high rates of aeromonas induced acute diarrhea/gastroenteritis (up to 13%). it needs to be appraised further in india as well as other countries having high rates of aeromonas induced acute diarrhea/gastroenteritis.
Study of Intermolecular Interactions in Liquid Crystals: Para-butyl-p’-cyano-biphenyl  [PDF]
K. K. Dwivedi, M. K. Dwivedi, S. N. Tiwari
Journal of Crystallization Process and Technology (JCPT) , 2014, DOI: 10.4236/jcpt.2014.41005
Abstract:

Various characteristics of mesomorphism can be explained using intermolecular interactions between a pair of liquid crystalline molecules. The intermolecular interactions have been calculated considering multipole-multicentere expansion method and modified by second order perturbation treatments. For calculation of multipole i.e. charge, dipole, etc. at each atomic center of molecules, para-butyl-p’-cyano-biphenyl, GAMESS, an ab initio program, with 6-31G* basis set has been used. The stacking, in-plane and terminal interaction energies explain the liquid crystalline behaviour of the system.

Dorsal onlay buccal mucosal graft urethroplasty in long anterior urethral stricture
Datta, Biswajit;Rao, M. P.;Acharya, R. L.;Goel, N.;Saxena, Vaibhav;Trivedi, S.;Dwivedi, U. S.;Singh, P. B.;
International braz j urol , 2007, DOI: 10.1590/S1677-55382007000200008
Abstract: objective: to assess the success of buccal mucosal graft (bmg) urethroplasty by the dorsal onlay technique in long anterior urethral stricture (> 2 cm long) through the midline perineal incision. materials and methods: from january 1998 to december 2003, 43 patients with long anterior urethral strictures were managed by dorsal onlay bmg urethroplasty. after voiding trial, they were followed up at 3 months with uroflowmetry, retrograde urethrogram (rgu) and american urological association symptoms score (aua symptoms scores). successful outcome was defined as normal voiding with a maximum one attempt of viu after catheter removal. patients were further followed-up with uroflowmetry at 3 months interval and rgu every 6 months interval. results: mean stricture length was 4.8 cm (range 3 to 9 cm) and mean follow up was 48 months (range 12 to 84 months). only five patients were found to develop stricture at anastomotic site, during follow-up. two of them voided normally after single attempt of viu. other three patients (6.9%) required further open surgery or repeat viu during follow up and were considered as failure. conclusion: dorsal onlay bmg urethroplasty is a simple technique with good surgical outcome.
Ophthalmia nodosa
Sethi P,Dwivedi N
Indian Journal of Ophthalmology , 1982,
Abstract:
Effect of electron inertial delay on Debye sheath formation
Deka, U.;Dwivedi, C.B.;
Brazilian Journal of Physics , 2010, DOI: 10.1590/S0103-97332010000300014
Abstract: present contribution deals with the role of weak but finite electron inertia on the sheath formation condition. as reported earlier this becomes effective when the ions' drift velocity exceeds the phase velocity of the acoustic wave fluctuations. such situation has natural existence near the sheath edge. keeping this in mind we have revisited the problem of usual bohm sheath condition. analytical and numerical analysis have been performed to re- derive the local condition for plasma sheath formation. it is found that the weak but finite electron inertia reduces the threshold value of ion mach number that may be, at least in principle, of qualitative value to define the sheath edge boundary. consideration of finite but weak equilibrium electron flow at the defined sheath edge shrinks the width of non- neutral space charge layer over which major potential drop and charge imbalance occurs. detailed numerical analysis and results of quantitative and qualitative importance are included in the text.
Methylene Blue Sensitized Photodechlorination of Isomeric Mono- and Dichloroanilines via Molecular Complex Formation Mechanism
U. C. Pande,A. H. Dwivedi
Journal of Chemistry , 2011, DOI: 10.1155/2011/827145
Abstract:
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