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Search Results: 1 - 10 of 3782 matches for " Patel Dipti "
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Robust Image Watermarking Based on Average and Significant Difference
Dipti Patel,Suprava Patnaik
Lecture Notes in Engineering and Computer Science , 2011,
Abstract:
RP-HPLC method for the estimation of dutasteride in tablet dosage form
Patel Dipti,Patel N,Patel S,Prajapati A
Indian Journal of Pharmaceutical Sciences , 2010,
Abstract: A simple, sensitive and precise RP-HPLC method was developed for the determination of dutasteride in tablet dosage form. The RP-HPLC separation was achieved on phenomenex C 18 column (250 mm, id 4.6 mm, 5 μm) using mobile phase methanol:water (90:10 v/v) at a flow rate of 1 ml/min at an ambient temperature. Quantification was achieved with photodiode array detection at 235 nm over the concentration range 1-12 μg/ml. The method was validated statistically and was applied successfully for the determination of dutasteride in tablets.
DEVELOPMENT AND VALIDATION OF FIRST ORDER DERIVATIVE SPECTROPHOTOMETRIC METHOD FOR SIMULTANEOUS ESTIMATION DICLOXACILLIN AND CEFPODOXIME PROXETIL IN TABLET DOSAGE FORM
Acharya Drupad R,Patel Dipti B,Patel Vikram V
Journal of Drug Delivery and Therapeutics , 2012,
Abstract: The present manuscript describe simple, sensitive, rapid, accurate, precise and economical first derivative spectrophotometric method for the simultaneous determination of dicloxacillin and cefpodoxime proxetil in combined tablet dosage form. The derivative spectrophotometric method was based on the determination of both the drugs at their respective zero crossing point (ZCP). The first order derivative spectra was obtained in methanol and the determinations were made at 233.8 nm (ZCP of cefpodoxime proxetil) for dicloxacillin and 321 nm (ZCP of dicloxacillin) for cefpodoxime proxetil. The linearity was obtained in the concentration range of 10-80 μg/ml for dicloxacillin and 4-32 μg/ml for cefpodoxime proxetil. The mean recovery was 100.70 ± 0.38 and 99.90 ± 0.36 for dicloxacillin and cefpodoxime proxetil, respectively. The method was found to be simple, sensitive, accurate and precise and was applicable for the simultaneous determination of dicloxacillin and cefpodoxime proxetil in pharmaceutical tablet dosage form. The results of analysis have been validated statistically and by recovery studies.
Validated Stability Indicating HPTLC Method for the Determination of Dutasteride in Pharmaceutical Dosage Forms
Dipti B. Patel,Natubhai J. Patel,Sejal K. Patel,Paresh U. Patel
Chromatography Research International , 2011, DOI: 10.4061/2011/278923
Abstract: This paper describes simple, sensitive, precise, specific, and stability-indicating high-performance thin-layer chromatographic method for the determination of dutasteride (DUTA) in bulk and tablet formulation. Validation was carried out in compliance with International Conference on Harmonization guidelines. The thin-layer chromatographic method employed aluminium plates precoated with silica gel G60F254 as stationary phase. The solvent system consisted of toluene/methanol/triethylamine (9 : 2 : 1, v/v/v). This solvent system was found to give compact spots for dutasteride with value 0.71 ± 0.01. Densitometric analysis of DUTA was carried out in the absorbance mode at 274 nm. Linear regression analysis showed good linearity (2=0.9989) with respect to peak area in the concentration range of 200–3000 ng per spot. The method was validated for precision, accuracy, specificity, and robustness. Pure drug was subjected to acid and alkali hydrolysis, oxidation, photo degradation, dry heat and wet heat treatment. The drug underwent degradation under acidic, basic, oxidative, and wet heat conditions. The degraded products were well separated from the pure drug. Statistical analysis proved that the method is reproducible and selective for estimation of DUTA in bulk and tablets. As the method could effectively separate the drugs from their degradation products, it can be employed as a stability indicating method.
On the Theory of Topological Computation in the Lowest Landau Level of QHE  [PDF]
Dipti Banerjee
Journal of Quantum Information Science (JQIS) , 2011, DOI: 10.4236/jqis.2011.13017
Abstract: We have studied the formation of Hall-qubit in lowest Landau level of (LLL) Quantum Hall effect due to the Aharonov-Bhom oscillation of quasiparticles.The spin echo method plays the key role in the topological entanglement of qubits. The proper ratio of fluxes for maximally entangling qubits has also been pointed out. The generation of higher Quantum Hall state may be possible with the help of quantum teleportation.
Exploring the Efficacy & Suitability of Flipped Classroom Instruction at School Level in India: A Pilot Study  [PDF]
Atasi Mohanty, Dipti Parida
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.75079
Abstract: The objective of this study was to compare the impact of flipped mode and traditional mode of instruction, on the learning outcomes of Grade VIII school children in History and Science; 90 primary school children from Odisha (India) were randomly assigned to either of control (traditional instruction) or experimental (flipped instruction) group. Pre-test scores of both the groups were compared through “t” test; the obtained “t” values of -0.019 and 1.931 were found to be insignificant (p > 0.05) which revealed no significant difference between these groups at the beginning. Thus, both the groups were assumed to have equal variance and after 01 month their post-test scores in History and Science were again compared to examine the impact of different instructional intervention/s. The obtained “t” values of both the groups’ post-test scores comparisons were -5.592, -3.260, found to be significant at p < 0.01 level, and confirmed the difference between control and experimental groups. Mean scores of flipped and traditional instructional groups further strengthened the positive impact of flipped mode of instruction on children’s learning outcomes in History and Science. The study recommends for future work on flipped instruction with larger sample for educational implications.
Antifungal Potential of Transition Metal Hexacyanoferrates against Fungal Diseases of Mushroom  [PDF]
Charu Arora Chugh, Dipti Bharti
Open Journal of Synthesis Theory and Applications (OJSTA) , 2012, DOI: 10.4236/ojsta.2012.13005
Abstract: Ferrocyanides of Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) were synthesized and characterized by IR spectra, magnetic susceptibility, thermal gravimetric analysis, elemental analysis and X ray diffraction studies. Antimicrobial potential of these complexes have been evaluated. Antifungal screening of these complexes has been carried out against Mycogone perniciosa and Verticillium fungicola causing wet and dry bubble diseases of button mushroom respectively. Nickel ferrocyanide has been found to be most effective against Mycogone perniciosa with 60% inhibitory effect while cadmium ferrocyanide has exhibited significant potential of 85% against Verticillium fungicola.
Non-Esterified Fatty Acids Generate Distinct Low-Molecular Weight Amyloid-β (Aβ42) Oligomers along Pathway Different from Fibril Formation
Amit Kumar,Rebekah L. Bullard,Pritesh Patel,Lea C. Paslay,Dipti Singh,Ewa A. Bienkiewicz,Sarah E. Morgan,Vijayaraghavan Rangachari
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0018759
Abstract: Amyloid-β (Aβ) peptide aggregation is known to play a central role in the etiology of Alzheimer’s disease (AD). Among various aggregates, low-molecular weight soluble oligomers of Aβ are increasingly believed to be the primary neurotoxic agents responsible for memory impairment. Anionic interfaces are known to influence the Aβ aggregation process significantly. Here, we report the effects of interfaces formed by medium-chain (C9–C12), saturated non-esterified fatty acids (NEFAs) on Aβ42 aggregation. NEFAs uniquely affected Aβ42 aggregation rates that depended on both the ratio of Aβ:NEFA as well the critical micelle concentration (CMC) of the NEFAs. More importantly, irrespective of the kind of NEFA used, we observed that two distinct oligomers, 12–18 mers and 4–5 mers were formed via different pathway of aggregation under specific experimental conditions: (i) 12–18 mers were generated near the CMC in which NEFAs augment the rate of Aβ42 aggregation towards fibril formation, and, (ii) 4–5 mers were formed above the CMC, where NEFAs inhibit fibril formation. The data indicated that both 12–18 mers and 4–5 mers are formed along an alternate pathway called ‘off-pathway’ that did not result in fibril formation and yet have subtle structural and morphological differences that distinguish their bulk molecular behavior. These observations, (i) reflect the possible mechanism of Aβ aggregation in physiological lipid-rich environments, and (ii) reiterate the fact that all oligomeric forms of Aβ need not be obligatory intermediates of the fibril formation pathway.
Extended Fuzzy Hyperline Segment Neural Network for Handwritten Character Recognition
Dipti Pawar
Lecture Notes in Engineering and Computer Science , 2012,
Abstract:
ANALGESIC EFFECT OF THE ETHANOLIC EXTRACT OF MORINGA OLEIFERA LINN. PLANT ON INDUCED ALBINO MICE
Sachan Dipti
International Research Journal of Pharmacy , 2012,
Abstract: The ethanolic extract of whole part of Moringa oleifera plant in Eddy’s Hot plate method shows markedly increase in the pain threshold of mice. The three different Extract Curative doses of 100 mg/kg, 200 mg/kg and 400 mg/kg were compared with standard drug i.e. Aspirin. The increased pain threshold of mice by curative treatment using alcohol extract was significant. Moringa oleifera is a deciduous tree of immense medicinal properties. Whole plant specially root, bark, leaves and fruits contain many important phytoconstituents. Literature survey revealed that plant contains flavonoids, glycosides, vitamins, and important inorganic metals that’s why used as an important medicine traditionally in many ailments. This laid the basis for selection of whole plant for the anti-inflammatory activity.
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