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Using linear difference equations to model nonlinear cryptographic sequences
Article
Article
Using linear difference equations to model nonlinear cryptographic sequences
Caballero-Gil, Pino et al · RI ITBA · 2011 · ISSN 1565-1339
"A new class of linear sequence generators based on cellular automata is here introduced in order to model several nonlinear keystream generators with practical applications in symmetric cryptography. The output sequence...
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Computación de altas prestaciones para la resolución de sistemas dispersos de grandes dimensiones: tomografía óptica difraccional como caso de estudio
E-book
E-book
Computación de altas prestaciones para la resolución de sistemas dispersos de grandes dimensiones: tomografía óptica difraccional como caso de estudio
Garzón Gracía, Martín; Ortega López, Gloria; García Fernández, Inmaculada · Editorial Universidad de Almería · 2014 · ISBN 9788416027583
This thesis, entitled €High Performance Computing for solving large sparse systems. Optical Diffraction Tomography as a case of study€ investigates the computational issues related to the resolution of linear systems o...
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Dichotomy spectrum and almost topological conjugacy on nonautonomus unbounded difference systems
Article
Article
Dichotomy spectrum and almost topological conjugacy on nonautonomus unbounded difference systems
Castañeda González, Alvaro et al · American Institute of Mathematical Sciences · 2018 · ISSN 1078-0947
We construct a bijection between the solutions of a linear system of nonautonomous difference equations which is uniformly asymptotically stable and its unbounded perturbation. The key idea used to made this bijection is...
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Numerical solution of initial boundary value problems involving maxwell's equations in isotropic media
Article
Article
Numerical solution of initial boundary value problems involving maxwell's equations in isotropic media
K.S. Yee · IEEE Transactions on Antennas and Propagation · 1966
Maxwell's equations are replaced by a set of finite difference equations. It is shown that if one chooses the field points appropriately, the set of finite difference equations is applicable for a boundary condition invo...
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Model selection: using information measures from ordinal symbolic analysis to select model subgrid-scale parameterizations
Article
Article
Model selection: using information measures from ordinal symbolic analysis to select model subgrid-scale parameterizations
Pulido, Manuel et al · RI ITBA · 2019 · ISSN 0022-4928
"The use of information measures for model selection in geophysical models with subgrid parameterizations is examined. Although the resolved dynamical equations of atmospheric or oceanic global numerical models are well ...
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The Effect of Human Growth Hormone, 17 α-methyl-17 β-hydroxyandrost-1,4-dien-3one and 1-methyl-⊿’-5 α-androsten-17 β-ol-3-on-17 β-acetate on the Net Protein Utilization of a 10% Casein Diet and on the Carcass Composition of the Rat L’effet de l’hormone de
Article
Article
The Effect of Human Growth Hormone, 17 α-methyl-17 β-hydroxyandrost-1,4-dien-3one and 1-methyl-⊿’-5 α-androsten-17 β-ol-3-on-17 β-acetate on the Net Protein Utilization of a 10% Casein Diet and on the Carcass Composition of the Rat L’effet de l’hormone de
Ballester, Digna et al · Universidad de Chile · 2019 · ISSN 14219697
The effect of human growth hormone (HGH) and of two anabolic drugs: 17 α methyl-17 ²-hydroxyandrost-1,4-dien-3one (Dianabol) and 1-methyl- Delta'-5 α-androsten-17 β-ol-3-ou-17 㬒-acetate, on the effici ency (measure...
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Numerical Methods for Unconstrained Optimization and Nonlinear Equations
Book
Book
Numerical Methods for Unconstrained Optimization and Nonlinear Equations
J. E. Dennis; Robert B. Schnabel · Society for Industrial and Applied Mathematics eBooks · 1996
Preface 1. Introduction. Problems to be considered Characteristics of 'real-world' problems Finite-precision arithmetic and measurement of error Exercises 2. Nonlinear Problems in One Variable. What is not possible Newto...
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A New Equation to Estimate Glomerular Filtration Rate
Article
Article
A New Equation to Estimate Glomerular Filtration Rate
Andrew S. Levey; Lesley A. Stevens; Christopher H. Schmid; Yaping Zhang; Alejandro Castro; Harold I. Feldman; John W. Kusek; Paul W. Eggers · Annals of Internal Medicine · 2009
BACKGROUND: Equations to estimate glomerular filtration rate (GFR) are routinely used to assess kidney function. Current equations have limited precision and systematically underestimate measured GFR at higher values. OB...
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Numerical Calculation of Time-Dependent Viscous Incompressible Flow of Fluid with Free Surface
Article
Article
Numerical Calculation of Time-Dependent Viscous Incompressible Flow of Fluid with Free Surface
Francis H. Harlow; J. Eddie Welch · The Physics of Fluids · 1965
A new technique is described for the numerical investigation of the time-dependent flow of an incompressible fluid, the boundary of which is partially confined and partially free. The full Navier-Stokes equations are wri...
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Using Standardized Serum Creatinine Values in the Modification of Diet in Renal Disease Study Equation for Estimating Glomerular Filtration Rate
Article
Article
Using Standardized Serum Creatinine Values in the Modification of Diet in Renal Disease Study Equation for Estimating Glomerular Filtration Rate
Andrew S. Levey; Josef Coresh; Tom Greene; Lesley A. Stevens; Yaping Zhang; Stephen Hendriksen; John W. Kusek; Frederick Van Lente · Annals of Internal Medicine · 2006
BACKGROUND: Glomerular filtration rate (GFR) estimates facilitate detection of chronic kidney disease but require calibration of the serum creatinine assay to the laboratory that developed the equation. The 4-variable eq...
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Ethnicity and earnings in urban Perú
Text / resource
Text / resource
Ethnicity and earnings in urban Perú
Ñopo, Hugo et al · SEDICI UNLP · 2003
Our approach to the concept of ethnicity involves the usage of instruments in many of its several dimensions: mother tongue, parental background, religion, migration events and race. In order to approximate what can be c...
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Formulation and characterization of both hydrophilic and hydrophobic HPMC based hydrogels containing diclofenac potassium
Article
Article
Formulation and characterization of both hydrophilic and hydrophobic HPMC based hydrogels containing diclofenac potassium
Ghosal, Kajal et al · SEDICI UNLP · 2010
The aim of this study was to develop topical hydrogels containing diclofenac potassium (DP) at 1 % w/v concentration using conventional hydrophilic hydroxypropyl methyl cellulose (HPMC, 50cPs) and modified hydrophobic ...
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Numerical solution of coupled mass and energy balances during osmotic microwave dehydration
Article
Article
Numerical solution of coupled mass and energy balances during osmotic microwave dehydration
Arballo, Javier Ramiro et al · SEDICI UNLP · 2012
The mass and energy transfer during osmotic microwave drying (OD-MWD) process was studied theoretically by modeling and numerical simulation. With the aim to describe the transport phenomena that occurs during the combin...
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<i>Computational Methods for Fluid Dynamics</i>
Article
Article
<i>Computational Methods for Fluid Dynamics</i>
Joel H. Ferziger; Milovan Perić; Anthony Leonard · Physics Today · 1997
Preface. Basic Concepts of Fluid Flow.- Introduction to Numerical Methods.- Finite Difference Methods.- Finite Volume Methods.- Solution of Linear Equation Systems.- Methods for Unsteady Problems.- Solution of the Navier...
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A Model for Collision Processes in Gases. I. Small Amplitude Processes in Charged and Neutral One-Component Systems
Article
Article
A Model for Collision Processes in Gases. I. Small Amplitude Processes in Charged and Neutral One-Component Systems
P. L. Bhatnagar; Eugene P. Gross; Max Krook · Physical Review · 1954
A kinetic theory approach to collision processes in ionized and neutral gases is presented. This approach is adequate for the unified treatment of the dynamic properties of gases over a continuous range of pressures from...
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CAPITAL ASSET PRICES: A THEORY OF MARKET EQUILIBRIUM UNDER CONDITIONS OF RISK*
Article
Article
CAPITAL ASSET PRICES: A THEORY OF MARKET EQUILIBRIUM UNDER CONDITIONS OF RISK*
William F. Sharpe · The Journal of Finance · 1964
One of the problems which has plagued those attempting to predict the behavior of capital markets is the absence of a body of positive microeconomic theory dealing with conditions of risk. Although many useful insights c...
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Relative expression software tool (REST(C)) for group-wise comparison and statistical analysis of relative expression results in real-time PCR
Article
Article
Relative expression software tool (REST(C)) for group-wise comparison and statistical analysis of relative expression results in real-time PCR
Michael W. Pfaffl · Nucleic Acids Research · 2002
Real-time reverse transcription followed by polymerase chain reaction (RT-PCR) is the most suitable method for the detection and quantification of mRNA. It offers high sensitivity, good reproducibility and a wide quantif...
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Scalable molecular dynamics with NAMD
Article
Article
Scalable molecular dynamics with NAMD
J. C. Phillips; Rosemary Braun; Wei Wang; James C. Gumbart; Emad Tajkhorshid; Elizabeth Villa; Christophe Chipot; Robert D. Skeel · Journal of Computational Chemistry · 2005
NAMD is a parallel molecular dynamics code designed for high-performance simulation of large biomolecular systems. NAMD scales to hundreds of processors on high-end parallel platforms, as well as tens of processors on lo...
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TCS: a computer program to estimate gene genealogies
Article
Article
TCS: a computer program to estimate gene genealogies
Mark Clement; David Posada; Keith A. Crandall · Molecular Ecology · 2000
Phylogenies are extremely useful tools, not only for establishing genealogical relationships among a group of organisms or their parts (e.g. genes), but also for a variety of research once the phylogenies are estimated. ...
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THE weighted histogram analysis method for free‐energy calculations on biomolecules. I. The method
Article
Article
THE weighted histogram analysis method for free‐energy calculations on biomolecules. I. The method
Shankar Kumar; John M. Rosenberg; Djamal Bouzida; Robert H. Swendsen; Peter A. Kollman · Journal of Computational Chemistry · 1992
Abstract The Weighted Histogram Analysis Method (WHAM), an extension of Ferrenberg and Swendsen's Multiple Histogram Technique, has been applied for the first time on complex biomolecular Hamiltonians. The method is pres...
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The Log of Gravity
Article
Article
The Log of Gravity
João Santos Silva; Silvana Tenreyro · The Review of Economics and Statistics · 2006
Abstract Although economists have long been aware of Jensen's inequality, many econometric applications have neglected an important implication of it: under heteroskedasticity, the parameters of log-linearized models est...
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Towards the ultimate conservative difference scheme. V. A second-order sequel to Godunov's method
Article
Article
Towards the ultimate conservative difference scheme. V. A second-order sequel to Godunov's method
Bram van Leer · Journal of Computational Physics · 1979
Subjects / keywords: Godunov's scheme; Mathematics; Conservation law; Nonlinear system; Applied mathematics; Dissipative system; Monotonic function; Order (exchange); Euler equations; Flow (mathematics); Mathematical analysis; Stability (lea...
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