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Search Results: 1 - 10 of 775 matches for " Subhashree Sahoo "
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ANALYTICAL CHARACTERIZATION OF A CONTROLLED RELEASE POLYMERIC SUSPENSION
Subhashree Sahoo et al.
International Journal of Pharmaceutical Sciences and Research , 2011,
Abstract: Aims: Qualitative analysis of a mucoadhesive polymeric (Carbopol940) suspension of Norfloxacin was carried out with the aim of developing an oral controlled release gastro-retentive dosage form. Correspondence to Author:Mrs. Subhashree SahooAssociate Professor, Department of Pharmaceutics, Kanak Manjari Institute of Pharmaceutical Sciences, Rourkela – 769015, Orissa, India Methods: The characterization of ultrasonicated formulation was performed by Fourier Transform Infrared Spectroscopy (FTIR), Raman Spectroscopy, X-ray powder diffraction (XRD) and Scanning electron microscopy (SEM) analyses. For interpretation, FTIR (400 cm-1 to 4000 cm-1 region) and Raman (140 to 2400 cm-1 region) spectra were used. XRD data of pure drug, polymer and the mucoadhesive polymeric (Carbopol940) suspension were obtained using a powder diffractometer, scanned from a Bragg’s angle (2θ) of 10 to 70 . In addition, dispersion of particle was studied using SEM techniques. Results: The results from FTIR and Raman Spectroscopic analyses suggested that in the mucoadhesive suspension, carboxylic groups of Norfloxacin and hydroxyl groups of C940 undergo chemical interaction leading to esterification and hydrogen bonding. The XRD data indicated that the retention of crystalline nature of Norfloxacin in the mucoadhesive suspension. Moreover, the SEM image analysis suggested that in the formulation maximum particles exhibited network like structure to produce pseudoplastic flow. Conclusion: From our analysis, it can be concluded that homogeneous, uniformly dispersed, pharmaceutically stable controlled release Norfloxacin suspension was prepared, which had the property of better bioavailability and penetration capacity.
Studies on Inter and intra-population variability of Pongamia pinnata: a bioenergy legume tree
Gyana Ranjan Rout,Debee Prasad Sahoo,Subhashree Aparajita
Crop Breeding and Applied Biotechnology , 2009,
Abstract: Pongamia pinnata is an oil producing tree species with multiple uses and considerable potential as a bioenergycrop. The present investigation has been carried out to assess the extent of genetic structure in a representative set of 111individuals of P. pinnata encompassing seven populations as a prelude for utilization of promising and genetically divergentmaterial in the breeding program. Molecular polymorphism was 67.18% with 10 Inter Simple Sequence Repeats (ISSR)between the individuals indicating modest levels of genetic variation in the P. pinnata germplasm collected. The withinpopulation variation based on ISSR polymorphism was 32.34% and polymorphism at the species level was 94.34%. Geneticdifferentiation between populations (GST= 0.61) was positively correlated with geographical distance. The data obtainedindicated an immediate need for widening the genetic base of P. pinnata germplasm for proper characterization and extensiveplantations of elite varieties to meet the biodiesel demands.
IN VITRO ANTIBACTERIAL ACTIVITIES STUDY OF POLYMERIC CIPROFLOXACIN SUSPENSIONS
Sahoo Subhashree,Chakraborti Chandra Kanti,Behera Pradipta Kumar
International Research Journal of Pharmacy , 2012,
Abstract: To study the in vitro antibacterial activities of mucoadhesive suspensions containing Ciprofloxacin, three different formulations were prepared by using three polymers, such as Hydroxypropyl methylcellulose (HPMC) (S1), Carbapol934 (S2) and Carbapol940 (S3), along with some common ingredients (bases). For the investigation, agar well diffusion method was performed taking Staphylococcus aureus (ATCC 25923), Bacillus subtilis and Escherichia coli (ATCC 25922). Apart from S. aureus, S1 and Ciprofloxacin in distilled water (S4) produced more or less similar zones of inhibition against all the strains used. S2 was more potent than S4 against S. aureus, while S3 was not more effective than S4 as far as their antibacterial activities were concerned. Moreover, S4 was not inferior to Ciprofloxacin in citrate buffer, marketed product containing Ciprofloxacin and Ciprofloxacin disc. The negative controls of the study, i.e., the different bases, distilled water and citrate buffer did not show any antibacterial activity. Considering the overall antibacterial activity pattern of different formulations, it may be concluded that S1 was the most potent, while S2 was more effective than S3. In addition, S1 and S4 were almost equally potent against all the strains.
Genotypic Variability and Correlation Studies in Pod and Seed Characteristics of Pongamia pinnata (L.) Pierre in Orissa, India
Deebe Prasad Sahoo,Gyana Ranjan Rout,Swarnalata Das,Subhashree Aparajita,A. K. Mahapatra
International Journal of Forestry Research , 2011, DOI: 10.1155/2011/728985
Abstract: Pongamia pinnata (L.) Pierre is a fast growing leguminous tree with high potential for oil seed production. Fifty-three candidate plus trees (CPTs) of Pongamia pinnata were selected from different locations in Orissa, India, on the basis of their seed and pod characteristics to identify suitable seed source with high oil content for production of quality planting seedling for use in afforestation programs. All the CPTs showed significant variation among themselves in respect to their pod and seed characters. Phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) estimates were high for pod thickness, seed thickness, 100-pod weight, and 100-seed weight. High heritability values accompanied by high genetic advance for 100-seed weight (96.1%, 59.6) and 100-pod weight (90.9%, 37.3) indicated additive gene action. High estimates of genotypic correlations than the corresponding phenotypic correlations indicated the presence of strong inherent association between pod length and pod breadth; 100-pod weight, and pod thickness; 100-pod weight and seed length; 100-seed weight and 100-pod weight. Seed length, seed breadth, seed thickness, 100-pod weight and 100-seed weight had significant positive correlation with each other, and these characters should be considered as effective parameters to select CPTs for different agroforestry programs. 1. Introduction Self-reliance in energy is vital for overall economic development of India and other developing countries. The recent oil crises and depleting fossil fuel reserves have rekindled interest in promotion of tree-borne oil seed species. Amongst the many plant species, Pongamia pinnata—a fast growing leguminous tree that has a high potential for high oil seed production and ability to grow on marginal lands—supports its cultivation as a potential biofuel crop for biodiesel industry [1]. Pongamia pinnata (L.) Pierre is an arboreal legume belonging to subfamily Papilionoideae. The medium size tree is indigenous to the Indian subcontinent and South-East Asia and has been successfully introduced to humid tropical regions including parts of Australia, New Zealand, China, and United States. The mature tree can withstand water logging and slight frost and is highly tolerant to salinity, and it can be grown along seashores with its roots surviving in saltwater. In its natural habitat, the species tolerates a wide range of temperature that is up to 50°C. P. pinnata had also a positive bioameliorative effect with contributions to soil nitrogen, phosphorous, potassium, and organic carbon. It is a
SCANNING ELECTRON MICROSCOPY AS AN ANALYTICAL TOOL FOR PARTICLE SIZE DISTRIBUTION AND ASPECT RATIO ANALYSIS OF CIPROFLOXACIN MUCOADHESIVE POLYMERIC SUSPENSION
Subhashree Sahoo, Chandra Kanti Chakraborti, Subash Chandra Mishra & Upendra Nath Nanda
International Journal of Research and Reviews in Applied Sciences , 2011,
Abstract:
Modified BB84 Protocol Using CCD Technology  [PDF]
Subhashree Basu, Supriyo Sengupta
Journal of Quantum Information Science (JQIS) , 2016, DOI: 10.4236/jqis.2016.61004
Abstract: Quantum cryptography and especially quantum key distribution (QKD) is a technique that allocates secure keys only for a short distance. QKD protocols establish secure key by consent of both the sender and receiver. However, communication has to take place via an authenticate channel. Without this channel, QKD is vulnerable to man-in-the-middle attack. While not completely secure, it offers huge advantages over traditional methods by the use of entanglement swapping and quantum teleportation. In our research, we adopt the principle of charge-coupled device (CCD) to transfer the qubit from the sender to the receiver via a quantum channel. This technology has an added advantage over polarizer as only the circuit for transmitting the qubit is sufficient. No extra circuitry to implement the polarizer is required.
Phylogenic Study of Twelve Species of Phyllanthus Originated from India through Molecular Markers for Conservation  [PDF]
Gyana Ranjan Rout, Subhashree Aparajita
American Journal of Plant Sciences (AJPS) , 2010, DOI: 10.4236/ajps.2010.11005
Abstract: The objective of the study was to characterize the germplasm for identification and phylogeny study for conservation. Identification and characterization of germplasm is an important link between the conservation and utilization of plant genetic resources. The present investigation was undertaken to draw the phylogenetic relationship between twelve species from India belonging to genus Phyllanthus with the help of molecular markers. In total, 259 marker loci were assessed, out of which 249 were polymorphic revealing 96.13% polymorphism. Nei’s similarity index varies from 0.23 to 0.76 for RAPD and 0.26 to 0.81 for ISSR marker systems. Cluster analysis by unweighted pair group method (UPGMA) of Dice coefficient of similarity generated dendogram with more or less similar topology for both the analysis that gave a better reflection of diversity and affinities between the species. The phylogenetic tree obtained from both RAPD and ISSR marker has divided the 12 species in two groups: group I consisting of only one species Phyllanthus angustifolius and the group II with the rest 11 species. This molecular result is comparable to notable morphological characteristics. The present study revealed the distant variation within the species of Phyllanthus. This investigation will help for identification and conservation of Phyllanthus species.
Maximum Leftover Energy-Distance routing protocol (MLE-LD) using absolute distance and Euclidean distance in WSNs
SWEET SUBHASHREE, NEELAMANI SAMAL
International Journal of Innovative Research in Computer and Communication Engineering , 2013,
Abstract: :WSN consists of a large number of sensors nodes which senses data from surrounding environment and gathers data collectively and send to aggregator which are called as clusters. As sensor nodes are deployed in sensing field, they can help people to monitor and aggregate data by consuming some energy through the process. Researchers also try to find more efficient ways of utilizing limited energy of sensor node in order to give longer life time of WSN. Network lifetime, scalability, and load balancing are important requirements for many data gathering sensor network applications. That is why many protocols are introduced for better performance and less consumption of energy. The efficient node-energy utilization is one of important performance factors in wireless sensor networks but besides this reliability is also an issue. In this paper, we proposed a cluster based routing algorithm to ensure high reliability such that the network life time will enhance and energy consumption will decrease and thereby giving better performance measure.
Genomic selection - Revolutionary breeding practice in Domestic animals
Manjit Panigrahi,Subhashree Parida
Veterinary World , 2012,
Abstract: With more and more Single Nucleotide Polymorphisms (SNPs) being identified throughout the genome, some of those SNPs will be found to be located within candidate genes, allowing the researchers to use the candidate gene approach on a genomewide scale. SNPs have some drawbacks but when compared to other markers they are more efficient and SNP consortium is growing to meet the requirements of genome-wide scans. Genomic selection should be able to at least double the rate of genetic gain in the dairy industry but the incorporation of genomic information into the breeding programs must be carefully considered. One needs to have around 2000 genotypes means a large reference population (population with both phenotype and genotype recorded) to achieve meaningful increases in accuracy. The available information, selection objectives, production circumstances and benefit/cost analysis must be evaluated in order to decide whether or not the population is suitable for GS implementation, and which would be the most convenient way, if any, for its implementation. Animal breeders will need to lead the way on the integration of genomic and phenotypic data into a new era of genome-enabled animal improvement and management. [Vet. World 2012; 5(7.000): 433-436]
A Finite Element Study of Elastic-Plastic Hemispherical Contact Behavior against a Rigid Flat under Varying Modulus of Elasticity and Sphere Radius  [PDF]
Prasanta Sahoo, Biplab Chatterjee
Engineering (ENG) , 2010, DOI: 10.4236/eng.2010.24030
Abstract: The present study considers a finite element analysis of elastic-plastic axi-symmetric hemispherical contact for a frictionless deformable sphere pressed by a rigid flat. The material of the sphere is modeled as elastic perfectly plastic. Analysis is carried out to study the effect of varying modulus of elasticity and sphere radius in wide range of dimensionless interference until the inception of plasticity as well as in plastic range. Results are compared with previous elastic-plastic models. It is found that materials with Young’s modulus to yield strength (E/Y) ratio less than and greater than 300 show strikingly different contact phenomena. The dependency of E on dimensionless interference at which the plastic region fully covers the surface is observed. However with different radius, finite element study exhibits similar elastic-plastic phenomena.
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