Escobedo, Jorge, Schargrodsky, Herman, Champagne, Beatriz, Silva, Honorio, Boissonnet, Carlos P, Vinueza, Raul, ...
Abstract Background Metabolic syndrome increases cardiovascular risk. Limited information on its prevalence in Latin America is available. The Cardiovascular Risk Factor Multiple Evaluation in Latin...
Gomez, Cesar, Gunnesson, Johan, Hernandez, Rafael
We extract from the double logarithmic contributions to DGLAP anomalous dimensions for twist-two operators up to three-loops the magnon dispersion relation for planar N=4 supersymmetric Yang-Mills....
Walking without crutches: culture, politics and critical thought in Cuba (2008)
Rafael Hernandez argues that the development of a high culture in Cuba has created a thinking civil society. The act of thinking implies a critical disposition, a capacity for spiritual and...
The Ising model and planar N=4 Yang-Mills (2007)
Gomez, Cesar, Gunnesson, Johan, Hernandez, Rafael
The scattering-matrix for planar Yang-Mills with N=4 supersymmetry relies on the assumption that integrability holds to all orders in perturbation theory. In this note we define a map from the...
Quantum deformed magnon kinematics (2007)
Gomez, Cesar, Hernandez, Rafael
The dispersion relation for planar N=4 supersymmetric Yang-Mills is identified with the Casimir of a quantum deformed two-dimensional kinematical symmetry, E_q(1,1). The quantum deformed symmetry...
Integrability and non-perturbative effects in the AdS/CFT correspondence (2006)
Gomez, Cesar, Hernandez, Rafael
We present a non-perturbative resummation of the asymptotic strong-coupling expansion for the dressing phase factor of the AdS_5xS^5 string S-matrix. The non-perturbative resummation provides a...
A Crossing-Symmetric Phase for AdS_5 x S^5 Strings (2006)
Beisert, Niklas, Hernandez, Rafael, Lopez, Esperanza
We propose an all-order perturbative expression for the dressing phase of the AdS_5 x S^5 string S-matrix at strong coupling. Moreover, we are able to sum up large parts of this expression. This...
The magnon kinematics of the AdS/CFT correspondence (2006)
Gomez, Cesar, Hernandez, Rafael
The planar dilatation operator of N=4 supersymmetric Yang-Mills is the hamiltonian of an integrable spin chain whose length is allowed to fluctuate. We will identify the dynamics of length...
Quantum corrections to the string Bethe ansatz (2006)
Hernandez, Rafael, Lopez, Esperanza
One-loop corrections to the energy of semiclassical rotating strings contain both analytic and non-analytic terms in the 't Hooft coupling. Analytic contributions agree with the prediction from the...
A Crossing-Symmetric Phase for AdS5 x S5 Strings (2006)
Beisert, Niklas, Hernandez, Rafael, Lopez, Esperanza
We propose an all-order perturbative expression for the dressing phase of the AdS_5 x S^5 string S-matrix at strong coupling. Moreover, we are able to sum up large parts of this expression. This...
A Crossing-Symmetric Phase for AdS5 x S5 Strings (2006)
Beisert, Niklas, Hernandez, Rafael, Lopez, Esperanza
We propose an all-order perturbative expression for the dressing phase of the AdS_5 x S^5 string S-matrix at strong coupling. Moreover, we are able to sum up large parts of this expression. This...
On supersymmetry and other properties of a class of marginally deformed backgrounds (2005)
Hernandez, Rafael, Sfetsos, Konstadinos, Zoakos, Dimitrios
We summarize our recent work on supergravity backgrounds dual to part of the Coulomb branch of N=1 theories constructed as marginal deformations of N=4 Yang-Mills. In particular, we present a summary...
Gravity duals for the Coulomb branch of marginally deformed N=4 Yang-Mills (2005)
Hernandez, Rafael, Sfetsos, Konstadinos, Zoakos, Dimitrios
Supergravity backgrounds dual to a class of exactly marginal deformations of N supersymmetric Yang-Mills can be constructed through an SL(2,R) sequence of T-dualities and coordinate shifts. We apply...
Finite size effects in ferromagnetic spin chains and quantum corrections to classical strings (2005)
Hernandez, Rafael, Lopez, Esperanza, Perianez, Africa, Sierra, German
N=4 supersymmetric Yang-Mills operators carrying large charges are dual to semiclassical strings in AdS_5xS^5. The spectrum of anomalous dimensions of very large operators has been calculated solving...
Spin chain sigma models with fermions (2004)
Hernandez, Rafael, Lopez, Esperanza
The complete one-loop planar dilatation operator of N=4 supersymmetric Yang-Mills is isomorphic to the hamiltonian of an integrable PSU(2,2|4) quantum spin chain. We construct the non-linear sigma...
Supersymmetry and Lorentzian holonomy in various dimensions (2004)
Hernandez, Rafael, Sfetsos, Konstadinos, Zoakos, Dimitrios
We present a systematic method for constructing manifolds with Lorentzian holonomy group that are non-static supersymmetric vacua admitting covariantly constant light-like spinors. It is based on the...
The SU(3) spin chain sigma model and string theory (2004)
Hernandez, Rafael, Lopez, Esperanza
The ferromagnetic integrable SU(3) spin chain provides the one loop anomalous dimension of single trace operators involving the three complex scalars of N=4 supersymmetric Yang-Mills. We construct...
Supersymmetric quantum mechanics from wrapped branes (2003)
Hernandez, Rafael, Sfetsos, Konstadinos
We explicitly construct a solution of eight-dimensional gauged supergravity representing D6-branes wrapped on six-cycles inside Calabi-Yau fourfolds. The solution preserves two supercharges and...
The Department of Defense (DoD) has numerous sites that contain groundwater contaminated with 2,4,6-trinitrotoluene (TNT). The currently applied technologies for treating TNT contaminated waters are...
The Department of Defense (DoD) has numerous sites that contain groundwater contaminated with 2,4,6-trinitrotoluene (TNT). The currently applied technologies for treating TNT contaminated waters are...
Holonomy from wrapped branes (2002)
Hernandez, Rafael, Sfetsos, Konstadinos
Compactifications of M-theory on manifolds with reduced holonomy arise as the local eleven-dimensional description of D6-branes wrapped on supersymmetric cycles in manifolds of lower dimension with a...
Looking at Cuba: Notes toward a Discussion (2002)
boundary 2 - Volume 29, Number 3, Fall 2002
Branes with fluxes wrapped on spheres (2002)
Hernandez, Rafael, Sfetsos, Konstadinos
Following an eight-dimensional gauged supergravity approach we construct the most general solution describing D6-branes wrapped on a Kahler four-cycle taken to be the product of two spheres of...
An eight-dimensional approach to G_2 manifolds (2002)
Hernandez, Rafael, Sfetsos, Konstadinos
We develop a systematic approach to G_2 holonomy manifolds with an SU(2)xSU(2) isometry using maximal eight-dimensional gauged supergravity to describe D6-branes wrapped on deformed three-spheres. A...
Thesis (Ph. D.)--Mississippi State University. Department of Chemical Engineering.
The Department of Defense (DoD) has numerous sites that contain groundwater contaminated with 2,4,6-trinitrotoluene (TNT). The currently applied technologies for treating TNT contaminated waters are...
Thesis (Ph. D.)--Mississippi State University. Department of Chemical Engineering.
Branes Wrapped on Coassociative Cycles (2001)
We obtain a supergravity solution arising when D6-branes are wrapped on coassociative four-cycles of constant curvature in seven manifolds of G_2 holonomy. The solutions preserve two supercharges and...
Glueball Masses for the Deformed Conifold Theory (2000)
Caceres, Elena, Hernandez, Rafael
We obtain the spectrum of glueball masses for the N=1 non-conformal cascade theory whose supergravity dual was recently constructed by Klebanov and Strassler. The glueball masses are calculated by...
Wilson Loops in the Higgs Phase of Large N Field Theories on the Conifold (2000)
Caceres, Elena, Hernandez, Rafael
We study the quark-antiquark interaction in the large N limit of the superconformal field theory on D-3branes at a Calabi-Yau conical singularity. We compute the Wilson loop in the AdS_5xT^{11}...
Calibrated Geometries and Non Perturbative Superpotentials in M-Theory (1999)
We consider non perturbative effects in M-theory compactifications on a seven-manifold of G_2 holonomy arising from membranes wrapped on supersymmetric three-cycles. When membranes are wrapped on...
Typescript.
Fleming, Elizabeth C., Zappi, Mark E., Toro, Evelyn, Hernandez, Rafael, Myers, Karen
Chemical oxidation processes that result in the generation of the hydroxyl radical (OH) have been referred to as advanced oxidation processes (AOPs) by the American Water Works Association. The U.S....
Fleming, Elizabeth C., Zappi, Mark E., Miller, Jerry, Hernandez, Rafael, Toro, Evelyn
Peroxone technology is based on the combination of hydrogen peroxide (H202) and ozone (03) for the generation of the hydroxyl radical (OH*), which is a powerful reactive species in water, to further...
M-Theory, Torons and Confinement (1997)
Gomez, Cesar, Hernandez, Rafael
We study the decompactification limit of M-theory superpotentials for N=1 four dimensional supersymmetric gauge theories. These superpotentials can be interpreted as generated by toron...
M and F-Theory Instantons, N=1 Supersymmetry and Fractional Topological Charges (1997)
Gomez, Cesar, Hernandez, Rafael
We analize instanton generated superpotentials for three dimensional N=2 supersymmetric gauge theories obtained by compactifying on S^1 N=1 four dimensional theories. In the N_f=1 case, we find that...
Electric-Magnetic Duality and Effective Field Theories (1995)
Gomez, Cesar, Hernandez, Rafael
Lectures given by C.G. in the Advanced School on Effective Theories (Almu\~{n}ecar, Granada, 1995) on duality in N=2 supersymmetric Yang-Mills, and the coupling to gravity.
Thesis (Master of Medical Sciences)--Harvard School of Dental Medicine, 1992.
Suarez, Jose L., Hernandez, Rafael
El volumen de las inversiones del sector seguros y fondos de pensiones europeo representa un porcentaje elevado del mercado inversor de la Unión Europea (UE) y, en particular, este sector es uno de...