Branch xylem density variations across the Amazon Basin (2009)
S. Patiño, J. Lloyd, R. Paiva, T. R. Baker, C. A. Quesada, L. M. Mercado, ...
Xylem density is a physical property of wood that varies between individuals, species and environments. It reflects the physiological strategies of trees that lead to growth, survival and...
T-duality and spacetime supersymmetry (2008)
Alvarez, E, Alvarez-Gaumé, Luís, Bakas, I
We analyze in detail the possible breaking of spacetime supersymmetry under T-duality transformations. We find that when appropiate world-sheet effects are taken into account apparent puzzles...
Branch xylem density variations across Amazonia (2008)
Patiño, S., Lloyd, J., Paiva, R., Quesada, C. A., Baker, T. R., Santos, A. J. B., ...
Measurements of branch xylem density, Dx, were made for 1466 trees representing 503 species, sampled from 80 sites across the Amazon basin. Measured values ranged from 240 kg m?3 for a Brosimum...
Branch xylem density variations across Amazonia (2008)
Patiño, S., Lloyd, J., Paiva, R., Quesada, C. A., Baker, T. R., Santos, A. J. B., ...
Measurements of branch xylem density, Dx, were made for 1466 trees representing 503 species, sampled from 80 sites across the Amazon basin. Measured values ranged from 240 kg m?3 for a Brosimum...
Biological characterizacion of recombinant pseudorabies virus (2008)
Alvarez, E., Prieto Suárez, Cinta, Martínez Lobo, Francisco Javier, Castro, J.M.
In a previous study we obtained and characterized in vitro a novel pseudorabies virus (PRV) variant named gIp2 with a TK, gI/gE, 11k and 28k negative phenotype and a duplication of PK gene. The main...
Valoración del riesgo de violencia contra la pareja por medio de la SARA (2008)
Alvarez, E., Pueyo, Antonio Andrés, López, S.
La violencia contra la pareja, especialmente la ejercida por el hombre sobre la mujer, es una de las formas más graves de violencia interpersonal, presenta una elevada prevalencia y numerosos...
Branch xylem density variations across Amazonia (2008)
S. Patiño, J. Lloyd, R. Paiva, C. A. Quesada, T. R. Baker, ...
Measurements of branch xylem density, <i>D</i><sub>x</sub>, were made for 1466 trees representing 503 species, sampled from 80 sites across the Amazon basin. Measured values...
Nuevas tecnologías en el tratamiento de los trastornos de alimentación (2007)
Fernández-Aranda, F., Martínez, C., Núñez, A., Alvarez, E., Jiménez Murcia, S.
A. Plascencia, E. Alvarez, R.A. Zinn
Four Holstein steers (406 kg) with cannulas in the rumen and proximal duodenum were used in a 4x4 Latin square design to evaluate the influence of acetate infusion on characteristics of ruminal and...
A. Plascencia, E. Alvarez, R.A. Zinn
Four Holstein steers (406 kg) with cannulas in the rumen and proximal duodenum were used in a 4x4 Latin square design to evaluate the influence of acetate infusion on characteristics of ruminal and...
Some global aspects of duality in string theory (2006)
Alvarez, E, Alvarez-Gaumé, Luís, Barbón, José L F, Lozano, Y
Transverse Fierz-Pauli symmetry (2006)
Alvarez, E., Blas, D., Garriga, J., Verdaguer, E.
We consider some flat space theories for spin 2 gravitons, with less invariance than full diffeomorphisms. For the massless case, classical stability and absence of ghosts require invariance under...
Alvarez, E., Bernabeu, J., Nebot, M.
In this paper we discuss experimental consequences of a novel kind of CPT violation which would manifest itself in the symmetry of the entangled initial state of $B ^0$ and $\bar B ^0$ through their...
CP, T and CPT analyses in EPR - correlated $ B^0 \bar B ^0 $ decays (2006)
In this work we study the T, CP and CPT symmetries in the B-meson system. Our analysis and results are addressed to the case of correlated mesons in the B-factories. In the first set of theory and...
A photometric redshift of z = 6.39 0.12 for GRB 050904 (2006)
Haislip, J.B., Nysewander, M.C., Reichart, D., Levan, A., Tanvir, N., Cenko, S.B., ...
Bilateral subthalamotomy in Parkinson's disease: initial and long-term response (2005)
Alvarez, L., Macias, R., Lopez, G., Alvarez, E., Pavon, N., Rodriguez-Oroz, M. C., ...
We conducted an open label pilot study of the effect of bilateral subthalamotomy in 18 patients with advanced Parkinson's disease. In seven patients, the first subthalamotomy pre-dated the second by...
Bilateral subthalamotomy in Parkinson's disease: initial and long-term response (2005)
Alvarez, L., Macias, R., Lopez, G., Alvarez, E., Pavon, N., Rodriguez-Oroz, M. C., ...
Summary We conducted an open label pilot study of the effect of bilateral subthalamotomy in 18 patients with advanced Parkinson's disease. In seven patients, the first subthalamotomy pre-dated the...
CPT violation in entangled B0-B0bar states and the demise of flavour tagging (2004)
Alvarez, E., Bernabeu, J., Mavromatos, N. E., Nebot, M., Papavassiliou, J.
We discuss the demise of flavour tagging due to the loss of the particle-antiparticle identity of neutral B-mesons in the Einstein-Podolsky-Rosen correlated states. Such a situation occurs in cases...
Frampton, P. H., Melchiorri, A., Bonora, L., Bracic, A. Borstnik, Borstnik, N. Mankoc, Nielsen, H. B., ...
Contents of Part 1: 1. Status of the Standard Model(P.H. Frampton), 2. Cosmological Constraints from MBA and Polarization (A. Melchiorri), 3. AdS/CFT Correspondence and Unification at About 4 TeV...
The above-ground coarse wood productivity of 104 Neotropical forest plots (2004)
Malhi, Y., Baker, Timothy Russell, Phillips, O. L., Almeida, S., Alvarez, E., Arroyo, L., ...
Fernández, J., Alvarez, E., Jiménez, J.M., Cañada, A., Donate, I., Vallejo Seco, Guillermo, ...
El objetivo de este estudio es analizar la situación del consumo de drogas de síntesis entre la población juvenil del Principado de Asturias, así como identificar las variables relacionadas con...
Victoir, K., De Doncker, S., Cabrera, L., Alvarez, E., Arevalo, J., Llanos-Cuentas, A., ...
Accurate identification of Leishmania species is important for monitoring clinical outcome, adequately targeting treatment, and evaluation of epidemiological risk in tegumentary leishmaniasis. This...
Pretreatment Deoxycytidine Kinase Levels Predict in Vivo Gemcitabine Sensitivity (2002)
Kroep, J.R., Loves, W.J.P., Alvarez, E., Talianidis, I., Boven, E., ...
Training Extension Course Utilization Survey. (2002)
The Army's Training Extension Course (TEC) Program consists of performance oriented, self-pace lessons designed to provide individual instruction for enlisted men in Army units. This report provides...
Composicion floristica y diversidad en bosques del Choco y la Amazonian Colombiana. (2001)
Cogollo, A., Alvarez, E., Londono Vega, A.C., Sarria, E., Correa, E., Jimenez, E.M.
Non-Critical Poincar\'e Invariant Bosonic String Backgrounds and Closed String Tachyons (2000)
Alvarez, E., Gomez, C., Hernandez, L.
A new family of non critical bosonic string backgrounds in arbitrary space time dimension $D$ and with $ISO(1,D-2)$ Poincar\'e invariance are presented. The metric warping factor and dilaton agree...
Holography and the C-Theorem (2000)
We review the geometric definition of C-function in the context of field theories that admit a holographic gravity dual.
The role of deoxycytidine kinase in gemcitabine cytotoxicity. (2000)
Kroep, J.R., Bergman, A.M., Loves, W.J.P., Alvarez, E., Talianidis, I., ...
The role of deoxycytidine kinase in gemcitabine cytotoxicity (2000)
Kroep, J.r., Bergman, A.M., Loves, W.J.P., Alvarez, E., Talianidis, I., ...
Non-Critical Confining Strings and the Renormalization Group (1999)
String vacua for non critical strings satisfying the requirements of Zig-Zag invariance are constructed. The Liouville mode is shown to play the r\^ole of scale in the Renormalization Group...
This is the written version of a set of introductory lectures on string theory.
The Holographic Principle and the Renormalization Group (1998)
We prove a c-theorem for holographic theories.
String Representation of Wilson Loops (1998)
Alvarez, E., Gomez, C., Ortin, T.
We explore the consequences of imposing Polyakov's zig/zag-invariance in the search for a confining string. We first find that the requirement of zig/zag-invariance seems to be incompatible with...
Black-holes, Duality and Supersymmetry (1997)
Alvarez, E., Meessen, P., Ortin, T.
In order to study the discrepancy between the supersymmetry bound and the extremality bound for rotating black holes, the effect of duality transformations on the class of stationary and axially...
Newtonian M(atrix) Cosmology (1997)
A Newtonian matrix cosmology, correspoding to the BFSS model of eleven-dimensional M-theory in the IMF as a (0+1) M(atrix) model is constructed. Interesting new results are obtained, such as the...
Killings, Duality and Characteristic Polynomials (1997)
Alvarez, E., Borlaf, J., León, J. H.
In this paper the complete geometrical setting of (lowest order) abelian T-duality is explored with the help of some new geometrical tools (the reduced formalism). In particular, all invariant...
T-Duality without Quantum Corrections (1997)
Alvarez, E., Borlaf, J., León, J. H.
It is a well known fact that the classical (``Buscher'') transformations of T-duality do receive, in general, quantum corrections. It is interesting to check whether classical T-duality can be exact...
T-duality for open strings (1996)
Alvarez, E., Barbon, J. L. F., Borlaf, J.
The T-duality transformations between open and closed superstrings in different D-manifolds are generalized to curved backgrounds with commuting isometries. We address some global aspects like the...
Supersymmetry and Dualities (1995)
Alvarez, E., Alvarez-Gaume, L., Bakas, I.
Duality transformations with respect to rotational isometries relate supersymmetric with non-supersymmetric backgrounds in string theory. We find that non-local world-sheet effects have to be taken...
T-duality and space-time supersymmetry (1995)
Alvarez, E, Alvarez-Gaumé, Luís, Bakas, Ioannis
We analyze in detail the possible breaking of space-time supersymmetry under T-duality transformations. We find that when appropriate world-sheet effects are taken into account, apparent puzzles...
T-duality and spacetime supersymmetry (1995)
Alvarez, E., Alvarez-Gaume, L., Bakas, I.
We analyze in detail the possible breaking of spacetime supersymmetry under T-duality transformations. We find that when appropiate world-sheet effects are taken into account apparent puzzles...
An Introduction to T-Duality in String Theory (1994)
Alvarez, E., Alvarez-Gaume, L., Lozano, Y.
In these lectures a general introduction to T-duality is given. In the abelian case the approaches of Buscher, and Ro\u{c}ek and Verlinde are reviewed. Buscher's prescription for the dilaton...
A Canonical Approach to Duality Transformations (1994)
Alvarez, E., Alvarez-Gaume, L., Lozano, Y.
We show that Buscher's abelian duality transformation rules can be recovered in a very simple way by performing a canonical transformation first suggested by Giveon, Rabinovici and Veneziano. We...
Alvarez, E., Gracia-Bondía, J. M., Martín, C. P.
We study the evolution under the renormalization group of the restrictions on the parameters of the standard model coming from Non-Commutative Geometry, namely $m_{top} = 2\,m_W$ and $m_{Higgs} =...
Some Global Aspects of Duality is String Theory (1993)
Alvarez, E., Alvarez-Gaume, L., Barbon, J. L. F., Lozano, Y.
We explore some of the global aspects of duality transformations in String Theory and Field Theory. We analyze in some detail the equivalence of dual models corresponding to different topologies at...
Quantum properties of the polytopic action in some simple geometries (1993)
Alvarez, E., Cespedes, J., Verdaguer, E.
The partition function corresponding to the "polytopic" action, a new action for the gravitational interaction which we have proposed recently, is computed in the simplest two-dimensional geometries...
Alvarez, E., Gracia-Bondia, J. M., Martin, C. P.
We have investigated the standard one-loop quantum corrections for a particularly simple non-commutative geometry model containing fermions interacting with a unique abelian gauge field and a unique...
Alvarez, E., Vinardell, I., Fagundo, J. R., Vega, J., Reguera, E.
The objective of this work is to ilustrate the use of the SAMA automatic system (Water Monitoring Automatic System) to aid the water chemical composition control. This system is based in the...
Karyotypic characterization of three Chilean subspecies of Liolaemus monticola (1981)
Lamborot, M., Alvarez, E., Campos, I., Espinoza, A.
Liolaemus monticola, Müller and Hellmich, is a highly variable, endemic montane species distributed along the temperate Andes in Chile. The subspecies (Müller and Hellmich) karyotypes established...
QUARK MATTER IN NEUTRON STARS (1980)
A semi-phenomenological model for quark matter is given and applied to dense stars (and also to a possible quark era in cosmology). In this model, the confinement of quarks occurs via the use of...
QUARK MATTER IN NEUTRON STARS (1980)
A semi-phenomenological model for quark matter is given and applied to dense stars (and also to a possible quark era in cosmology). In this model, the confinement of quarks occurs via the use of...
QUARK MATTER IN NEUTRON STARS (1980)
A semi-phenomenological model for quark matter is given and applied to dense stars (and also to a possible quark era in cosmology). In this model, the confinement of quarks occurs via the use of...
RADIATIVE LIFETIMES OF HIGHLY IONIZED AND FOIL-EXCITED Al. (1979)
Denne, B., Pegg, D., Ishii, K., Alvarez, E., Hallin, R., Pihl, J., ...
Foil-excited spectra of multiply charged Al ions in the spectral range ~300-1000 Å have been recorded at 10, 20, 30 and 45 MeV beam energies using the Uppsala tandem accelerator. Radiative lifetimes...
RADIATIVE LIFETIMES OF HIGHLY IONIZED AND FOIL-EXCITED Al. (1979)
Denne, B., Pegg, D., Ishii, K., Alvarez, E., Hallin, R., Pihl, J., ...
Foil-excited spectra of multiply charged Al ions in the spectral range ~300-1000 Å have been recorded at 10, 20, 30 and 45 MeV beam energies using the Uppsala tandem accelerator. Radiative lifetimes...
RADIATIVE LIFETIMES OF HIGHLY IONIZED AND FOIL-EXCITED Al. (1979)
Denne, B., Pegg, D., Ishii, K., Alvarez, E., Hallin, R., Pihl, J., ...
Foil-excited spectra of multiply charged Al ions in the spectral range ~300-1000 Å have been recorded at 10, 20, 30 and 45 MeV beam energies using the Uppsala tandem accelerator. Radiative lifetimes...
An ordered collection of Bacillus subtilis DNA segments cloned in yeast artificial chromosomes.
Azevedo, V, Alvarez, E, Zumstein, E, Damiani, G, Sgaramella, V, Ehrlich, S D, ...
A collection of 772 Bacillus subtilis DNA segments was obtained by cloning in yeast artificial chromosomes. The B. subtilis inserts of 288 clones were mapped by hybridization using as probes 65...
Barredo, J L, Alvarez, E, Cantoral, J M, Diez, B, Martin, J F
One glucokinase-deficient mutant (glk1) of Penicillium chrysogenum AS-P-78 was isolated after germ tube-emitting spores were mutated with nitrosoguanidine and selected for growth on...
Alvarez, E, Cantoral, J M, Barredo, J L, Díez, B, Martín, J F
The acyl coenzyme A (CoA):6-aminopenicillanic acid (6-APA) acyltransferase of Penicillium chrysogenum AS-P-78 was purified to homogeneity, as concluded by sodium dodecyl sulfate-polyacrylamide gel...
Esmahan, C, Alvarez, E, Montenegro, E, Martin, J F
Penicillium chrysogenum L2, a lysine auxotroph blocked in the early steps of the lysine pathway before 2-aminoadipic acid, was able to synthesize penicillin when supplemented with lysine. The amount...
Revilla, G, Ramos, F R, López-Nieto, M J, Alvarez, E, Martín, J F
The content of alpha-aminoadipyl-cysteinyl-valine, the first intermediate of the penicillin biosynthetic pathway, decreased when Penicillium chrysogenum was grown in a high concentration of glucose....
Nucleotide sequence of the Penicillium chrysogenum pyrG (orotidine-5'-phosphate decarboxylase) gene.
Cantoral, J M, Barredo, J L, Alvarez, E, Díez, B, Martín, J F
Alvarez, E, Gironès, N, Davis, R J
The human transferrin receptor is expressed as a disulfide-linked dimer at the cell surface. The sites of intermolecular disulfide bonds are Cys-89 and Cys-98. We have examined the functional...
Insulin secretion stimulated by allogeneic lymphocytes in an inbred strain of mice.
García, J B, Venturino, M C, Alvarez, E, Braun, M, Pivetta, O H, ...
Effects of intraperitoneal injection of allogeneic lymphocytes on insulin secretion were studied in incubated pancreas slices from BALB/c mice. Injection of allogeneic lymphocytes from C57BL/6J (H2b)...
A point mutation in the cytoplasmic domain of the transferrin receptor inhibits endocytosis.
Alvarez, E, Gironès, N, Davis, R J
The rate of receptor-mediated endocytosis of diferric 125I-transferrin by Chinese-hamster ovary cells expressing human transferrin receptors was compared with the rate measured for cells expressing...
Decrease in free-radical production with age in rat peritoneal macrophages.
Alvarez, E, Conde, M, Machado, A, Sobrino, F, Santa Maria, C
The respiratory-burst reaction has been studied in rat peritoneal macrophages of different ages (3, 12 and 24 months) using phorbol 12-myristate 13-acetate (PMA) to stimulate NADPH oxidase....
Sylvester, D R, Alvarez, E, Patel, A, Ratnam, K, Kallender, H, Wallis, N G
The UDP-N-acetylenolpyruvylglucosamine reductase (MurB) from a Gram-positive pathogen, Streptococcus pneumoniae, was identified and characterized. The enzyme from S. pneumoniae shows 31% identity...
An ordered collection of Bacillus subtilis DNA segments cloned in yeast artificial chromosomes.
Azevedo, V, Alvarez, E, Zumstein, E, Damiani, G, Sgaramella, V, Ehrlich, S D, ...
A collection of 772 Bacillus subtilis DNA segments was obtained by cloning in yeast artificial chromosomes. The B. subtilis inserts of 288 clones were mapped by hybridization using as probes 65...
Barredo, J L, Alvarez, E, Cantoral, J M, Diez, B, Martin, J F
One glucokinase-deficient mutant (glk1) of Penicillium chrysogenum AS-P-78 was isolated after germ tube-emitting spores were mutated with nitrosoguanidine and selected for growth on...
Alvarez, E, Cantoral, J M, Barredo, J L, Díez, B, Martín, J F
The acyl coenzyme A (CoA):6-aminopenicillanic acid (6-APA) acyltransferase of Penicillium chrysogenum AS-P-78 was purified to homogeneity, as concluded by sodium dodecyl sulfate-polyacrylamide gel...
Esmahan, C, Alvarez, E, Montenegro, E, Martin, J F
Penicillium chrysogenum L2, a lysine auxotroph blocked in the early steps of the lysine pathway before 2-aminoadipic acid, was able to synthesize penicillin when supplemented with lysine. The amount...
Revilla, G, Ramos, F R, López-Nieto, M J, Alvarez, E, Martín, J F
The content of alpha-aminoadipyl-cysteinyl-valine, the first intermediate of the penicillin biosynthetic pathway, decreased when Penicillium chrysogenum was grown in a high concentration of glucose....
Nucleotide sequence of the Penicillium chrysogenum pyrG (orotidine-5'-phosphate decarboxylase) gene.
Cantoral, J M, Barredo, J L, Alvarez, E, Díez, B, Martín, J F
Alvarez, E, Gironès, N, Davis, R J
The human transferrin receptor is expressed as a disulfide-linked dimer at the cell surface. The sites of intermolecular disulfide bonds are Cys-89 and Cys-98. We have examined the functional...
Insulin secretion stimulated by allogeneic lymphocytes in an inbred strain of mice.
García, J B, Venturino, M C, Alvarez, E, Braun, M, Pivetta, O H, ...
Effects of intraperitoneal injection of allogeneic lymphocytes on insulin secretion were studied in incubated pancreas slices from BALB/c mice. Injection of allogeneic lymphocytes from C57BL/6J (H2b)...
A point mutation in the cytoplasmic domain of the transferrin receptor inhibits endocytosis.
Alvarez, E, Gironès, N, Davis, R J
The rate of receptor-mediated endocytosis of diferric 125I-transferrin by Chinese-hamster ovary cells expressing human transferrin receptors was compared with the rate measured for cells expressing...
Decrease in free-radical production with age in rat peritoneal macrophages.
Alvarez, E, Conde, M, Machado, A, Sobrino, F, Santa Maria, C
The respiratory-burst reaction has been studied in rat peritoneal macrophages of different ages (3, 12 and 24 months) using phorbol 12-myristate 13-acetate (PMA) to stimulate NADPH oxidase....
Sylvester, D R, Alvarez, E, Patel, A, Ratnam, K, Kallender, H, Wallis, N G
The UDP-N-acetylenolpyruvylglucosamine reductase (MurB) from a Gram-positive pathogen, Streptococcus pneumoniae, was identified and characterized. The enzyme from S. pneumoniae shows 31% identity...
Comparative evaluation of oculokinetic perimetry and conventional perimetry in glaucoma.
Alvarez, E., Damato, B. E., Jay, J. L., McClure, E.
Oculokinetic perimetry is a new method of visual field assessment in which the patient moves the eye around a central static target to look sequentially at an array of numbers. When fixation on a...
Alvarez, E, Ruiz-Gutiérrez, V, Sobrino, F, Santa-María, C
The O·2− production has been studied in rat peritoneal neutrophils of different age (3, 12 and 24 months), in order to analyse whether the neutrophil respiratory burst is modified with increasing...
Interleukin 2 exerts autocrine stimulation on murine T-cell leukaemia growth.
Waldner, C. I., Mongini, C., Alvarez, E., Sánchez Lockhart, M., Gravisaco, M. J., Hajos, S. E.
As it has been suggested that an autocrine mechanism may control tumour cell growth, in this work cells from a spontaneous murine T lymphocyte leukaemia (LB) expressing the interleukin-2 receptor...
Antibody levels against BK virus and prostate, kidney and bladder cancers in the EPIC-Oxford cohort
Newton, R, Ribeiro, T, Casabonne, D, Alvarez, E, Touzé, A, Key, T, ...
In a case–control study nested within the EPIC-Oxford cohort, there were no statistically significant differences in the prevalence or titre of antibodies against BK virus measured in plasma taken...
Antitumour and antiangiogenic effects of Aplidin® in the 5TMM syngeneic models of multiple myeloma
Caers, J, Menu, E, De Raeve, H, Lepage, D, Van Valckenborgh, E, Van Camp, B, ...
Aplidin® is an antitumour drug, currently undergoing phase II evaluation in different haematological and solid tumours. In this study, we analysed the antimyeloma effects of Aplidin in the syngeneic...