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The viability of employing flow analysis coupled to Fourier transform infrared spectroscopy (FA-FTIR) as a useful tool for quantitative measuring of magnesium sulphate in pharmaceuticals was explored, developed and valid...

An efficient method for the calculation of the interactions of a 2m factorial experiment was introduced by Yates and is widely known by his name.The generalization to 3m was given by Box et al. [1].Good [2] generalized t...

A multiple sequence alignment program, MAFFT, has been developed. The CPU time is drastically reduced as compared with existing methods. MAFFT includes two novel techniques. (i) Homo logous regions are rapidly identified...

The use of the fast Fourier transform in power spectrum analysis is described. Principal advantages of this method are a reduction in the number of computations and in required core storage, and convenient application in...

SIR 97 is the integration of two programs, SIR 92 and CAOS , the first devoted to the solution of crystal structures by direct methods, the second to refinement via least-squares–Fourier procedures. Several new feature...

With a conventional lens sharpness of the image is always limited by the wavelength of light. An unconventional alternative to a lens, a slab of negative refractive index material, has the power to focus all Fourier comp...

An N⋅log(N) method for evaluating electrostatic energies and forces of large periodic systems is presented. The method is based on interpolation of the reciprocal space Ewald sums and evaluation of the resulting convol...

a etilcelulosa (EC) ha sido ampliamente usada como material adecuado en el desarrollo de nuevos sistemas para liberación modificada de fármacos. Algunos oligo-polisacáridos como inulina (IN), goma guar(GG) y sus deriv...

The present study involves the preparation of nimesulide-chitosan microparticles (NCM) as sustained delivery carriers with different polymer concentrations by pH change coacervation method using glutaraldehyde as cross-l...

The aim of the present study was to develop sustained release swelling tablets containing metformin HCl and confine them into the stomach for enhancement of bioavailability. The different batches were manufactured by wet...

The influence of the nonionic surfactant lauryl alcohol ethoxylate with 12 moles ethylene oxide (LAE-12OE) was evaluated on the Stratum corneum model biomembrane (SCMM) of shed snake skin (Bothrops jararaca and Spilotes ...

Spherical crystallization (SC) is a promising alternative for improiving micromeritic properties and dissolution rate of active pharmaceutical ingredients. In the present work spherical agglomerates of carvedilol (CAR) w...

Debido a su biodegradabilidad, recientemente los polisacáridos han sido bastante estudiados para su utilización en sistemas de liberación controlada de farmacos, ya que ellos pueden ser degradados específicamente por...

The present investigation aims at feasibility assessment of ethyl cellulose (EC) and polyvinylpyrrolidone (PVP) based ondansetron hydrochloride matrix type transdermal systems. The effects of polymeric concentration, its...

This paper outlines and deals with the problem of fault detection, isolation and identification of the four-elements detector system attached to the Cairo Fourier diffractometer facility (CFDF) used for neutron time-of-f...

Resveratrol exhibits wide pharmacological activities, such as, anti-oxidant, anti-inflammatory, analgesic, cardio-protective, neuro-protective, chemo-preventive, chemo-therapeutic, and anti-aging. However, its aqueous so...

Se estudió la biodegradación de películas del polímero etil-vinil-alcohol -EVOH-, en fermentación semi-sólida (FSS) con el hongo Phanerochaete chrysosporium, usando como sustrato la mezcla de iguales cantidades de ...

The goal of any drug delivery system is to provide a therapeutic amount of drug (s) to the proper site in the body in order to promptly achieve and there by to maintain the desired drug concentrations during treatment. T...

Sodium alginate microspheres of domperidone for intranasal systemic delivery were developed to eliminate first pass metabolism, improve patient compliance and obtain improved therapeutic efficacy in treatment of migrai...

The objective of present work was to assess ion exchange resins for taste masking of Dextromethorphan Hydrobromide (DM) - a highly bitter drug. A strong cationic exchange resin (Amberlite® IRP-69) and weak cationic exch...

Debido a su biodegradabilidad varios polímeros naturales, tales como los polisacáridos, han sido propuestos como excipientes adecuados para desarrollar sistemas de liberación controlada para la administración oral. E...

The parallel computing model used in this paper, the Collective Computing Model (CCM), is a variant of the well-known Bulk Synchronous Parallel (BSP) model. The synchronicity imposed by the BSP model restricts the set of...

A practical step-by-step guide to wavelet analysis is given, with examples taken from time series of the El Niño–Southern Oscillation (ENSO). The guide includes a comparison to the windowed Fourier transform, the choi...

1. Bessel functions before 1826 2. The Bessel coefficients 3. Bessel functions 4. Differential equations 5. Miscellaneous properties of Bessel functions 6. Integral representations of Bessel functions 7. Asymptotic expan...