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Search Results: 1 - 10 of 152 matches for " Bhakti Bhagwat "
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ante-natal population
Bhakti Deshmukh
Australasian Medical Journal , 2012,
Abstract: .
Multistep-ahead River Flow Prediction using LS-SVR at Daily Scale  [PDF]
Parag P. Bhagwat, Rajib Maity
Journal of Water Resource and Protection (JWARP) , 2012, DOI: 10.4236/jwarp.2012.47062
Abstract: In this study, potential of Least Square-Support Vector Regression (LS-SVR) approach is utilized to model the daily variation of river flow. Inherent complexity, unavailability of reasonably long data set and heterogeneous catchment response are the couple of issues that hinder the generalization of relationship between previous and forthcoming river flow magnitudes. The problem complexity may get enhanced with the influence of upstream dam releases. These issues are investigated by exploiting the capability of LS-SVR–an approach that considers Structural Risk Minimization (SRM) against the Empirical Risk Minimization (ERM)–used by other learning approaches, such as, Artificial Neural Network (ANN). This study is conducted in upper Narmada river basin in India having Bargi dam in its catchment, constructed in 1989. The river gauging station–Sandia is located few hundred kilometer downstream of Bargi dam. The model development is carried out with pre-construction flow regime and its performance is checked for both pre- and post-construction of the dam for any perceivable difference. It is found that the performances are similar for both the flow regimes, which indicates that the releases from the dam at daily scale for this gauging site may be ignored. In order to investigate the temporal horizon over which the prediction performance may be relied upon, a multistep-ahead prediction is carried out and the model performance is found to be reasonably good up to 5-day-ahead predictions though the performance is decreasing with the increase in lead-time. Skills of both LS-SVR and ANN are reported and it is found that the former performs better than the latter for all the lead-times in general, and shorter lead times in particular.
A new approach to microbial production of gallic acid
Bajpai, Bhakti;Patil, Shridhar;
Brazilian Journal of Microbiology , 2008, DOI: 10.1590/S1517-83822008000400021
Abstract: in a new approach to microbial gallic acid production by aspergillus fischeri mtcc 150, 40gl-1 of tannic acid was added in two installments during the bioconversion phase of the process (25gl-1 and 15gl-1 at 32 and 44h respectively). the optimum parameters for the bioconversion phase were found to be temperature: 35oc, ph: slightly acidic (3.3-3.5), aeration: nil and agitation: 250 rpm. a maximum of 71.4% conversion was obtained after 71h fermentation with 83.3% product recovery. the yield was 7.35 g of gallic acid per g of biomass accumulated and the fermenter productivity was 0.56 g of gallic acid produced per liter of medium per hour.
On Deligne's periods for tensor product motives
Chandrasheel Bhagwat
Mathematics , 2015, DOI: 10.1016/j.crma.2014.11.016
Abstract: In this paper, we give a description of Deligne's periods $c^\pm$ for tensor product of pure motives $M \otimes M'$ over $\mathbb{Q}$ in terms of the period invariants attached to $M$ and $M'$ by Yoshida. The period relations proved by the author and Raghuram in an earlier paper follow from the results of this paper.
Generation, annotation, and analysis of ESTs from midgut tissue of adult female Anopheles stephensi mosquitoes
Deepak P Patil, Santosh Atanur, Dhiraj P Dhotre, D Anantharam, Vineet S Mahajan, Sandeep A Walujkar, Rakesh K Chandode, Girish J Kulkarni, Pankaj S Ghate, Abhishek Srivastav, Kannayakanahalli M Dayananda, Neha Gupta, Bhakti Bhagwat, Rajendra R Joshi, Devendra T Mourya, Milind S Patole, Yogesh S Shouche
BMC Genomics , 2009, DOI: 10.1186/1471-2164-10-386
Abstract: We obtained 7061 and 8306 ESTs from the sugar-fed and P. yoelii infected mosquito midgut tissue libraries, respectively. ESTs from the combined dataset formed 1319 contigs and 2627 singlets, totaling to 3946 unique transcripts. Putative functions were assigned to 1615 (40.9%) transcripts using BLASTX against UniProtKB database. Amongst unannotated transcripts, we identified 1513 putative novel transcripts and 818 potential untranslated regions (UTRs). Statistical comparison of annotated and unannotated ESTs from the two libraries identified 119 differentially regulated genes. Out of 3946 unique transcripts, only 1387 transcripts were mapped on the A. gambiae genome. These also included 189 novel transcripts, which were mapped to the unannotated regions of the genome. The EST data is available as ESTDB at http://mycompdb.bioinfo-portal.cdac.in/cgi-bin/est/index.cgi webcite.3946 unique transcripts were successfully identified from the adult female A. stephensi midgut tissue. These data can be used for microarray development for better understanding of vector-parasite relationship and to study differences or similarities with other malaria vectors. Mapping of putative novel transcripts from A. stephensi on the A. gambiae genome proved fruitful in identification and annotation of several genes. Failure of some novel transcripts to map on the A. gambiae genome indicates existence of substantial genomic dissimilarities between these two potent malaria vectors.Anopheles stephensi is a major malaria vector in the Indian subcontinent [1]. Rapid urbanization and development in the region has stimulated a corresponding increase in their population resulting in frequent malaria outbreaks [2]. Although, recent malaria epidemics occurred at higher frequencies, mortality was considerably low. For example during 2003, of the reported 1.78 million cases, only 1006 deaths were recorded in India [3].Absence of an efficient vaccine [4], evolution of drug-resistance in the parasites [5]
Phylogenetic inference under varying proportions of indel-induced alignment gaps
Bhakti Dwivedi, Sudhindra R Gadagkar
BMC Evolutionary Biology , 2009, DOI: 10.1186/1471-2148-9-211
Abstract: (1) In general, there was a strong – almost deterministic – relationship between the amount of gap in the data and the level of phylogenetic accuracy when the alignments were very "gappy", (2) gaps resulting from deletions (as opposed to insertions) contributed more to the inaccuracy of phylogenetic inference, (3) the probabilistic methods (Bayesian, PhyML & "MLε, " a method implemented in DNAML in PHYLIP) performed better at most levels of gap percentage when compared to parsimony (MP) and distance (NJ) methods, with Bayesian analysis being clearly the best, (4) methods that treat gapped sites as missing data yielded less accurate trees when compared to those that attribute phylogenetic signal to the gapped sites (by coding them as binary character data – presence/absence, or as in the MLε method), and (5) in general, the accuracy of phylogenetic inference depended upon the amount of available data when the gaps resulted from mainly deletion events, and the amount of missing data when insertion events were equally likely to have caused the alignment gaps.When gaps in an alignment are a consequence of indel events in the evolution of the sequences, the accuracy of phylogenetic analysis is likely to improve if: (1) alignment gaps are categorized as arising from insertion events or deletion events and then treated separately in the analysis, (2) the evolutionary signal provided by indels is harnessed in the phylogenetic analysis, and (3) methods that utilize the phylogenetic signal in indels are developed for distance methods too. When the true homology is known and the amount of gaps is 20 percent of the alignment length or less, the methods used in this study are likely to yield trees with 90–100 percent accuracy.DNA sequences are used routinely to infer phylogenies [1-3]. The sequences within lineages (branches of the phylogenetic tree) evolve independently over time by means of several evolutionary processes, including point replacements of nucleotides (base subst
Study of the External Hyphae of AMF in Understanding the Function to Contribution of P Sorption by Plants Using the Thin Section Method
Machfud Effendy,Bhakti Wisnu Wijayani
Jurnal Tanah Tropika , 2008,
Abstract: The study of the external hyphae of AMF was conducted for getting data of the soil hyphae distribution from the observation using thin section preparation. The experiment was arranged in factorial fully randomized design. The first factors were dosages of P application: 0; 45; 90; 135; and 180 kg ha-1. The second factors were AMF spore inoculation: with inoculation and without inoculation. The observations were conducted to roots and shoots oven dried, absorption of P, P32- fertilizer and P31 from soil. The soil was separated from T-pots and to prepare for making the thin section of soil for observation to hyphae distribution at every 2 cm level. The experiment results showed that the prepared of thin section was documented at the 200 μm x 200 μm (= 40.000 μm2) dimension can be used for external hifas observation. In the 400 μm2 areas of soil without AMF inoculated has about 24 to 27 external hyphal, so at the 40.000 μm2 areas has 2.400 until 2.700 hyphae. The soil was AMF inoculated has 19 to 25 hyphae at 400 μm2 areas of soil, and in the 40.000 μm2 areas has 1.900 until 2.500 hyphae and the length of hyphae about 67-75 m g-1. The diameter hifas at soil without AMF inoculation about 8-10 μm, and at the soil with AMF inoculated has hyphae diameter about 8-11 μm, and the long of hyphae about 53-69 m g-1. The growth speed of hyphae about 0.74-0.89 m day-1 or about 0.031-0.035 m hour-1. The inoculated plant with AMF spore gave more in contribution to P32 fertilizer and soil P31 than that in uninoculated plant, but the yield of shoot and root oven dried was higher for plants without inoculated AMF spore. The inoculated soil with spore of AMF caused to sum of AMF spore and soil P availability was higher than that in uninoculated soil.
Estimation of Available Phosphorus in Soil Using the Population of Arbuscular Mycorrhizal Fungi Spores
Machfud Effendy,Bhakti Wisnu Wijayani
Jurnal Tanah Tropika , 2011,
Abstract: Soil microbes, such as arbuscular mycorrhizal fungi (AMF) have the ability to dissolve unavailable phosphorus (P) and they can be used as an indicator of the P availability in soil. The study was conducted on upland soil in East Java. The soil was sampled twice, before and after planting at the harvesting time. The population of AMF spores and soil P availability were observed. The AMF spores were isolated using wet sieving method, decanting, and followed by sucrose density gradient centrifugation. The available P was observed using the Olsen extraction. The numbers of AMF spore was corelated with available P, moreover the numbers of AMF spore was compared to the availabality of P. The results showed that the total number of AMF spores at six sites were ranged from a little to midle, and the available P ranged from low to high level. All soil site samples had a linear corelation between numbers of AMF spore and available P in soil. The greater the number of AMF spore, the higher the available P in soil. It was likely that the availability of P in soil can be predicted by the population of AMF spores in soil. Therefore, the number of AMF spore can be need as a biological method to predict the available P in soil and to make a recommendation the use of P fertilizer.
The impact of sequence parameter values on phylogenetic accuracy
Bhakti Dwivedi,Sudhindra R Gadagkar
Biology and Medicine , 2009,
Abstract: An accurately inferred phylogeny is important to the study of molecular evolution. Factors affecting the accuracy of aphylogenetic tree can be traced to several sequential steps leading to the inference of the phylogeny. I examine herethe features of the sequences in the alignment which impact phylogenetic (topological) accuracy rather than anysource of error during the process of sequence alignment or choice of the method of inference. Specifically, I studythe implications of the following five parameters, individually and in combination: sequence length, substitution rate,nucleotide base composition, the transition-transversion rate ratio and the rate heterogeneity among the sites. It isfound that the transition-transversion rate ratio or kappa has a significant impact on phylogenetic accuracy, with astrong positive interaction with accuracy at high substitution rates, contrary to general belief. This work on knownexpected tree has implications for the researcher in field and would enable them to choose from among the multiplegenes typically available today for an accurate phylogenetic inference. In addition, the increased accuracy withincrease in kappa suggest that the phylogenetic signal may be strong in the nucleotide sites that have experiencedconsiderable number of transversion than transition substitutions and thus can be useful in inference of a meaningfulphylogeny.
Development and Validation of First Derivative Spectrophotometric Method for Simultaneous Estimation of Cefixime and Moxifloxacin in Synthetic Mixture
Bharatkumar Ganeshbhai Chaudhari,Bhakti Patel
International Journal For Pharmaceutical Research Scholars , 2012,
Abstract: A simple and economical first derivative spectrophotometric method has been developed for the simultaneous estimation of cefixime and moxifloxacin in their synthetic mixture. The method involved determination of Zero Crossing points (ZCP) in their respective derivative spectra. By scanning first derivative spectra of cefixime and moxifloxacin, ZCP for cefixime was found to be at 289 nm and for moxifloxacin at 316.4 nm. For cefixime 316.4 nm and for moxifloxacin 289 nm was chosen as an analytical wavelength. The method involved solving of an equation based on measurement of absorbances at wavelengths 289 and 316.4 nm. The proposed method was found to be simple, economical, accurate, and reproducible for routine analysis of both drugs in tablet dosage form.
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