Queen Booker, Scott Farrar, Mick Mcquaid, Ana Lopez
The Internet has made transfer of knowledge of successful community development programs and processes possible by allowing practitioners to connect through computer-mediated-communications such as...
Chamon, Claudio, Fradkin, Eduardo, Lopez, Ana
While the values for the fractional charge and fractional statistics coincide for fractional Hall (FQH) states in the Laughlin sequence, they do not for more general FQH states, such as those in the...
Alvaro González-Hernandez, Joël LeMaoult, Ana Lopez, Estibaliz Alegre, Julien Caumartin, Solène Le Rond, ...
Nonclassical human leukocyte antigen (HLA) class I molecule HLA-G and indoleamine 2,3 dioxygenase (INDO) in humans and mice, respectively, have been shown to play crucial immunosuppressive roles in...
Fermion Chern Simons Theory of Hierarchical Fractional Quantum Hall States (2003)
We present an effective Chern-Simons theory for the bulk fully polarized fractional quantum Hall (FQH) hierarchical states constructed as daughters of general states of the Jain series, {\it i. e.}...
We present an effective theory for the bulk Fractional Quantum Hall states in spin-polarized bilayer and spin-1/2 single layer two-dimensional electron gases (2DEG) in high magnetic fields consistent...
Universal structure of the edge states of the fractional quantum Hall states (1998)
We present an effective theory for the bulk fractional quantum Hall states on the Jain sequences on closed surfaces and show that it has a universal form whose structure does not change from fraction...
Fermionic Chern-Simons Field Theory for the Fractional Hall Effect (1997)
We review the fermionic Chern-Simons field theory for the Fractional Quantum Hall Effect (FQHE). We show that in this field theoretic approach to the problem of interacting electrons moving in a...
Interacting electrons on a half line coupled to impurities (1997)
Lopez, Ana, Fuentes, Manuel, Fradkin, Eduardo
We generalize the bosonization methods for systems in the half line that we discussed elsewhere, to study the effects of interactions on electronic systems coupled to impurities. We introduce a model...
Exact effective action for fermions in one dimension with backscattering at a boundary (1995)
Fuentes, Manuel, Lopez, Ana, Fradkin, Eduardo
We report exact results for the partition function for free Dirac fermions on a half line with physically sensible boundary conditions. An exact effective action for general backscattering amplitudes...
Bosonization rules in $1/2 +1$ dimensions (1995)
Fuentes, Manuel, Lopez, Ana, Fradkin, Eduardo, Moreno, Enrique
We derive the bosonization rules for free fermions on a half-line with physically sensible boundary conditions for Luttinger fermions. We use path-integral methods to calculate the bosonized...
Fermionic Chern-Simons theory for the Fractional Quantum Hall Effect in Bilayers (1994)
We generalize the fermion Chern-Simons theory for the Fractional Hall Effect (FQHE) which we developed before, to the case of bilayer systems. We study the complete dynamic response of these systems...
Chern_simons Theory of the Anisotropic Quantum Heisenberg Antiferromagnet on a Square Lattice (1994)
Lopez, Ana, Rojo, A. G., Fradkin, Eduardo
We consider the anisotropic quantum Heisenberg antiferromagnet (with anisotropy $\lambda$) on a square lattice using a Chern-Simons (or Wigner-Jordan) approach. We show that the Average Field...
We calculate the electromagnetic response functions of a Fractional Quantum Hall system within the framework of the fermion Chern-Simons theory for the Fractional Hall Effect (FQHE) which we...
Phosphatidylinositol 3-Kinase Is a Negative Regulator of Cellular Differentiation
Ptasznik, Andrzej, Beattie, Gillian M., Mally, Martin I., Cirulli, Vincenzo, Lopez, Ana, Hayek, Alberto
Phosphatidylinositol 3-kinase (PI3K) has been shown to be an important mediator of intracellular signal transduction in mammalian cells. We show here, for the first time, that the blockade of PI3K...