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Search Results: 1 - 10 of 464616 matches for " Patel A "
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Virtual Numbers to Represent Entangled Quantum States  [PDF]
Lalit A. Patel
Journal of Quantum Information Science (JQIS) , 2014, DOI: 10.4236/jqis.2014.41002
Abstract:

In the existing formalism of quantum states, probability amplitudes of quantum states are complex numbers. A composition of entangled quantum states, such as a Bell state, cannot be decomposed into its constituent quantum states, implying that quantum states lose their identities when they get entangled. This is contrary to the observation that a composition of entangled quantum states decays back to its constituent quantum states. To eliminate this discrepancy, this paper introduces a new type of numbers, called virtual numbers, which produce zero upon multiplication with complex numbers. In the proposed formalism of quantum states, probability amplitudes of quantum states are general numbers made of complex and virtual numbers. A composition of entangled quantum states, such as a Bell state, can then be decomposed into its constituent quantum states, implying that quantum states retain their identities when they get entangled.

Hartnup disease
Patel A,Prabhu A
Indian Journal of Dermatology , 2008,
Abstract: A 10 year old girl presented with clinical signs and symptoms of the triad of niacin deficiency namely skin eruptions, ataxia, mental changes and diarrhea. Although this deficiency could be nutritional where maize is a staple diet, this patient had neutral aminoaciduria which indicated a defective transport of neutral amino acid transporter in the kidneys and intestine resulting in failure of transport of tryptophan and other neutral (ie, monoaminomonocarboxylic) alpha-amino acids in the small intestine and the renal tubules.
Nanoparticles and its applications in field of pharmacy
Dr. Rakesh P. Patel,N. A. Patel,D. J. patel
Pharmaceutical Reviews , 2008,
Abstract: Nanotechnology is the synergy of mechanical, material sciences, microelectronics, electrical, chemical and biological screening. Nanotechnologies are the design, characterization, production and application of structures, devices and systems by controlling shape and size at nanometer scale.This systemic review highlights classifications, preparation techniques, characterization methods, applications, health implications and clinical aspects of nanoparticles. 1. Introduction on Nanotechnology and NanoparticlesNanoscience is the study of phenomenon and manipulation of materials at atomic, molecular and macromolecular scales, where properties differ significantly from those at a larger scale. Nanoelement can be defined as:
DEVELOPMENT AND VALIDATION OF SPECTROPHOTOMETRIC METHOD FOR SIMULTANEOUS ESTIMATION OF DIAZEPAM AND PROPRANOLOL HYDROCHLORIDE IN COMBINED DOSAGE FORM
Patel Satish A,Patel Paresh U,Patel Natavarlal J.
International Research Journal of Pharmacy , 2011,
Abstract: The present manuscript describe simple, sensitive, rapid, accurate, precise and economical first derivative spectrophotometric method for the simultaneous determination of diazepam and propranolol hydrochloride 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 0.05M methanolic sulphuric acid and the determinations were made at 248 nm (ZCP of propranolol hydrochloride) for diazepam and 242 nm (ZCP of diazepam) for propranolol hydrochloride. The linearity was obtained in the concentration range of 2.5-30 μg/ml for both diazepam and propranolol hydrochloride. The mean recovery was 99.77 ± 1.39 and 100.6 ± 1.18 % for diazepam and propranolol hydrochloride, respectively. The method was found to be simple, sensitive, accurate and precise and was applicable for the simultaneous determination of diazepam and propranolol hydrochloride in pharmaceutical tablet dosage form. The results of analysis have been validated statistically and by recovery studies.
SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF MONTELUKAST SODIUM AND BAMBUTEROL HYDROCHLORIDE IN TABLETS
Patel Satish A,Patel Dhara J,Patel Natavarlal J.
International Research Journal of Pharmacy , 2011,
Abstract: The present manuscript describe simple, sensitive, rapid, accurate, precise and economical first derivative spectrophotometric method for the simultaneous determination of montelukast sodium and bambuterol hydrochloride 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 chloroform and the determinations were made at 241 nm (ZCP of bambuterol hydrochloride) for montelukast sodium and 258.4 nm (ZCP of montelukast sodium) for bambuterol hydrochloride. The linearity was obtained in the concentration range of 10-60 μg/ml for montelukast sodium and 10-80 μg/ml for bambuterol hydrochloride. The mean recovery was 100.1 ± 1.25 and 99.70 ± 1.38 for montelukast sodium and bambuterol hydrochloride, respectively. The method was found to be simple, sensitive, accurate and precise and was applicable for the simultaneous determination of montelukast sodium and bambuterol hydrochloride in pharmaceutical tablet dosage form. The results of analysis have been validated statistically and by recovery studies.
SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF CEFIXIME TRIHYDRATE AND OFLOXACIN IN TABLETS
Patel Satish A,Patel Paresh U,Patel Natavarlal J.
International Research Journal of Pharmacy , 2011,
Abstract: The present manuscript describe simple, sensitive, rapid, accurate, precise and economical Q-absorbance ratio method for the simultaneous determination of cefixime trihydrate and ofloxacin in combined tablet dosage form. Absorbance ratio method uses the ratio of absorbances at two selected wavelengths, one which is an isoabsorptive point and other being the λ-max of one of the two components. Cefixime trihydrate and ofloxacin show an isoabsorptive point at 280.2 nm in methanol. The second wavelength used is 291.4 nm, which is the λ-max of cefixime trihydrate in methanol. The linearity was obtained in the concentration range of 2-14 μg/ml for both cefixime trihydrate and ofloxacin. The concentrations of the drugs were determined by using ratio of absorbances at isoabsorptive point and at the λ-max of cefixime trihydrate. The method was successfully applied to pharmaceutical dosage form because no interference from the tablet excipients was found. The results of analysis have been validated statistically and by recovery studies.
ABSORBANCE CORRECTION METHOD FOR SIMULTANEOUS DETERMINATION OF NEBIVOLOL AND AMLODIPINE BESYLATE IN COMBINED TABLET DOSAGE FORM
Patel Satish A,Patel Paresh U,Patel Natavarlal J.
International Research Journal of Pharmacy , 2011,
Abstract: The manuscript describes validated absorbance correction method for the estimation of nebivolol and amlodipine besylate in combined dosage form. Absorbance correction method was based on property of additivity of absorbances. The two wavelengths on amlodipine besylate curve were found out where it showed same absorbance, which were 262 and 332.5 nm. At 332.5 nm, amlodipine besylate showed some absorbance while nebivolol showed zero absorbance. Both the drugs gave absorbance at 262 nm. The method involved solving of an equation based on measurement of absorbance at two wavelengths 262 and 332.5 nm. The determinations were made at 262 for nebivolol and amlodipine besylate and 332.5 nm for amlodipine besylate over the concentration range of 10-70 μg/ml for both nebivolol and amlodipine besylate with mean recovery of 99.7 ± 0.15 and 99.4 ± 0.18 % for nebivolol and amlodipine besylate, respectively by absorbance correction method. This method was found to be simple, sensitive, accurate, precise, reproducible, and economical and can be applicable for the simultaneous determination of nebivolol and amlodipine besylate in combined dosage form.
VALIDATED SPECTROPHOTOMETRIC METHOD FOR ESTIMATION OF CEFTAZIDIME IN DRY POWDER FOR INJECTION
Patel Satish A,Patel Harita M,Patel Natavarlal J
International Research Journal of Pharmacy , 2011,
Abstract: The present manuscript describes simple, sensitive, accurate, precise and economical visible spectrophotometric method for estimation of ceftazidime in pharmaceutical dosage form. Method is based on the reaction of ceftazidime with Folin-Ciocalteu (FC) reagent in presence of 10 % sodium carbonate solution, giving blue colour chromogen, which shows maximum absorbance at 752 nm against reagent blank. Beer’s law was obeyed in the concentration range of 2.5-50 μg/ml. The method was successfully applied to pharmaceutical dosage form because no interference from the dosage form excipients was found. The results of analysis have been validated statistically and by recovery studies.
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.
GENERIC DRUG USER FEE: AN OVERVIEW
Darshit S. Patel*, Abhishek R. Patel and Narendra A. Patel
International Journal of Pharmaceutical Sciences and Research , 2012,
Abstract: The globalization of generic drug manufacturing, supply and testing, and a growing workload that has far outpaced USFDA’s resources has created new challenges. USFDA & Industry propose generic drug user fee to address the need for globalization of the inspection process, and to speed the timely review of generic product applications. The Generic Drug User Fee (GDUF) proposal is agreed by generic industry & USFDA and is focused on three key aims: safety, access, and transparency. Under the program, USFDA will receive nearly $1.5 billion over five years in supplemental funding through generic industry user fees in order to help the agency expedite access to generic drugs, enhance drug quality and safety and ensure inspection parity of both foreign and domestic manufacturing sites. GDUF also will help accelerate the market entry of additional manufacturers of drugs currently in short supply and improve quality, consistency, and availability within the supply chain, further helping to mitigate drug shortages. The GDUF new legislation is a milestone for the generic giants and a major win for American health care consumers.
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