We investigated domain wall networks as a possible candidate to explain the present accelerated expansion of the universe. We discuss various requirements that any stable lattice of frustrated walls...
We investigated domain wall networks as a possible candidate to explain the present accelerated expansion of the universe. We discuss various requirements that any stable lattice of frustrated walls...
Dynamics of domain wall networks with junctions (2008)
Avelino, P. P., Menezes, J., Menezes, R.
We use a combination of analytic tools and an extensive set of the largest and most accurate three-dimensional field theory numerical simulations to study the dynamics of domain wall networks with...
Reverse logistics for recycling: The customer service (2008)
Menezes, J., Reis, E., Rebelo, E.
Customer service is a central concern in the logistics practice and a study topic in the forward logistics research. This article investigates the elements of customer service and their importance in...
Scaling of cosmological domain wall networks with junctions (2006)
Avelino, P. P., Menezes, J., Menezes, R.
We describe the results of the largest and most accurate three-dimensional field theory simulations of domain wall networks with junctions. We consider a previously introduced class of models which,...
Defect Junctions and Domain Wall Dynamics (2006)
Avelino, P. P., Menezes, J., Menezes, R.
We study a number of domain wall forming models where various types of defect junctions can exist. These illustrate some of the mechanisms that will determine the evolution of defect networks with...
Frustrated Expectations: Defect Networks and Dark Energy (2006)
Avelino, P. P., Menezes, J., Menezes, R.
We discuss necessary conditions for a network of cosmic domain walls to have a chance of providing the dark energy that might explain the recent acceleration of the universe. We derive a strong bound...
Gravitational Effects of Varying Alpha Strings (2006)
Menezes, J., Avelino, P. P., Santos, C.
We study spatial variations of the fine-structure constant in the presence of static straight cosmic strings in the weak-field approximation in Einstein gravity. We work in the context of a generic...
Evolution of the fine-structure constant in the non-linear regime (2005)
Avelino, P. P., Menezes, J., Santos, C.
We study the evolution of the fine-structure constant, $\alpha$, induced by non-linear density perturbations in the context of the simplest class of quintessence models with a non-minimal coupling to...
Global Defects in Field Theory with Applications to Condensed Matter (2005)
Bazeia, D., Menezes, J., Menezes, R.
We review investigations on defects in systems described by real scalar fields in (D,1) space-time dimensions. We first work in one spatial dimension, with models described by one and two real scalar...
Varying Alpha Monopoles (2005)
Menezes, J., Avelino, P. P., Santos, C.
We study static magnetic monopoles in the context of varying alpha theories and show that there is a group of models for which the t'Hooft-Polyakov solution is still valid. Nevertheless, in general...
Cosmic strings in Bekenstein-type models (2004)
Menezes, J., Avelino, P. P., Santos, C.
We study static cosmic string solutions in the context of Bekenstein-type models. We show that there is a class of models of this type for which the classical Nielsen-Olesen vortex is still a valid...
New Global Defect Structures (2003)
Bazeia, D., Menezes, J., Menezes, R.
We investigate the presence of defects in systems described by real scalar field in (D,1) spacetime dimensions. We show that when the potential assumes specific form, there are models which support...
Complete factorization of equations of motion in Wess-Zumino theory (2001)
Bazeia, D., Menezes, J., Santos, M. M.
We prove that the equations of motion describing domain walls in a Wess-Zumino theory involving only one chiral matter multiplet can be factorized into first order Bogomol'nyi equations, so that all...
Complete factorization of equations of motion in supersymmetric field theories (2001)
Bazeia, D., Menezes, J., Santos, M. M.
We investigate bosonic sectors of supersymmetric field theories. We consider superpotentials described by one and by two real scalar fields, and we show how the equations of motion can be factorized...
We have recently shown that infection of Epstein-Barr virus (EBV) genome-positive B cells by human herpesvirus 6 (HHV-6) results in the expression of the immediate-early EBV Zebra gene, followed by...
Activation of the Epstein-Barr virus replicative cycle by human herpesvirus 6.
Flamand, L, Stefanescu, I, Ablashi, D V, Menezes, J
One common attribute of herpesviruses is the ability to establish latent, life-long infections. The role of virus-virus interaction in viral reactivation between or among herpesviruses has not been...
Khyatti, M, Patel, P C, Stefanescu, I, Menezes, J
Cell surface-associated viral glycoproteins are thought to play a major role as target antigens in cellular cytotoxicity and antiviral immunosurveillance. One such glycoprotein is the Epstein-Barr...
Flamand, L, Gosselin, J, D'Addario, M, Hiscott, J, Ablashi, D V, Gallo, R C, ...
The human herpesvirus 6 (HHV-6) is known to interact intimately with cells of the immune system. Here we report that HHV-6 is a potent inducer of interleukin-1 beta (IL-1 beta) and tumor necrosis...
Use of fluoresceinated Epstein-Barr virus to study Epstein-Barr virus-lymphoid cell interactions.
As a direct approach to visualize Epstein-Barr virus (EBV) binding to its cellular receptors and to learn more on the nature of this binding, virus preparations were conjugated to fluorescein...
Gosselin, J, Flamand, L, D'Addario, M, Hiscott, J, Menezes, J
Infection by herpesviruses can result in profound immunosuppressive or immunomodulatory effects. However, no significant information is available on the effect of such infections on the production of...
Menezes, J, Jondal, M, Leibold, W, Dorval, G
In order to further understand Epstein-Barr virus (EBV)-lymphocyte interactions, we investigated a chain of events including: (i) EBV binding to human lymphocyte subpopulations; (ii) the earliest...
Human herpesvirus-6 enhances natural killer cell cytotoxicity via IL-15.
Flamand, L, Stefanescu, I, Menezes, J
The marked tropism of human herpesvirus-6 (HHV-6) for natural killer (NK) cells and T lymphocytes has led us to investigate the effect of HHV-6 on cellular cytotoxicity. We describe here how HHV-6...
Menezes, J, Seigneurin, J M, Patel, P, Bourkas, A, Lenoir, G
This paper reports a unique type of interaction of Epstein-Barr virus (EBV) with an EBV receptor-positive, genome-negative human lymphoid T cell line (Molt 4), which can be summarized as follows....
We have recently shown that infection of Epstein-Barr virus (EBV) genome-positive B cells by human herpesvirus 6 (HHV-6) results in the expression of the immediate-early EBV Zebra gene, followed by...
Activation of the Epstein-Barr virus replicative cycle by human herpesvirus 6.
Flamand, L, Stefanescu, I, Ablashi, D V, Menezes, J
One common attribute of herpesviruses is the ability to establish latent, life-long infections. The role of virus-virus interaction in viral reactivation between or among herpesviruses has not been...
Khyatti, M, Patel, P C, Stefanescu, I, Menezes, J
Cell surface-associated viral glycoproteins are thought to play a major role as target antigens in cellular cytotoxicity and antiviral immunosurveillance. One such glycoprotein is the Epstein-Barr...
Flamand, L, Gosselin, J, D'Addario, M, Hiscott, J, Ablashi, D V, Gallo, R C, ...
The human herpesvirus 6 (HHV-6) is known to interact intimately with cells of the immune system. Here we report that HHV-6 is a potent inducer of interleukin-1 beta (IL-1 beta) and tumor necrosis...
Use of fluoresceinated Epstein-Barr virus to study Epstein-Barr virus-lymphoid cell interactions.
As a direct approach to visualize Epstein-Barr virus (EBV) binding to its cellular receptors and to learn more on the nature of this binding, virus preparations were conjugated to fluorescein...
Gosselin, J, Flamand, L, D'Addario, M, Hiscott, J, Menezes, J
Infection by herpesviruses can result in profound immunosuppressive or immunomodulatory effects. However, no significant information is available on the effect of such infections on the production of...
Menezes, J, Jondal, M, Leibold, W, Dorval, G
In order to further understand Epstein-Barr virus (EBV)-lymphocyte interactions, we investigated a chain of events including: (i) EBV binding to human lymphocyte subpopulations; (ii) the earliest...
Human herpesvirus-6 enhances natural killer cell cytotoxicity via IL-15.
Flamand, L, Stefanescu, I, Menezes, J
The marked tropism of human herpesvirus-6 (HHV-6) for natural killer (NK) cells and T lymphocytes has led us to investigate the effect of HHV-6 on cellular cytotoxicity. We describe here how HHV-6...
Menezes, J, Seigneurin, J M, Patel, P, Bourkas, A, Lenoir, G
This paper reports a unique type of interaction of Epstein-Barr virus (EBV) with an EBV receptor-positive, genome-negative human lymphoid T cell line (Molt 4), which can be summarized as follows....
Lamontagne, L, Jolicoeur, P, Decarie, D, Menezes, J
A chronic viral infection can occur when the host fails to mount an effective immune response to clear the virus. Mouse hepatitis virus type 3 (MHV3) appears to be an excellent model for the study of...
A familial syndrome of susceptibility to chronic active Epstein-Barr virus infection.
Joncas, J. H., Ghibu, F., Blagdon, M., Montplaisir, S., Stefanescu, I., Menezes, J.
In two members of a family (daughter and father) active Epstein-Barr virus (EBV) infections persisted over periods of 4 and 3 years respectively (possibly 10 years in the father). Both had persistent...
Joncas, J. H., Rioux, E., Wastiaux, J. P., Leyritz, M., Robillard, L., Menezes, J.
Two nasopharyngeal carcinomas of the lymphoepithelioma type and two Burkitt's lymphomas with the characteristic histopathologic features developed in three siblings and one first-degree cousin in a...
Sundar, S K, Bergeron, J, Menezes, J
Immunosuppression is a generally observed phenomenon in patients with malignancies. Here we report that plasminogen activating factor (PAF) produced by human (P3HR-1) and simian (B95-8) lymphoid...
We investigated the influence of the Epstein-Barr virus (EBV) replication cycle on natural killing (NK) activity and antibody-dependent cellular cytotoxicity (ADCC) against EBV-infected cells....
Dorval, G, Bourkas, A E, Menezes, J
Characteristics of the specificity and affinity of surface Fc-receptors induced on Raji (a Burkitt's lymphoma derived B cell line) and Molt-4 (a T cell line derived from a leukaemic patient) after...
AHMAD, R, BLAGDON, M, AHMAD, A, TOMA, E, MORISSET, R, ...
Cytotoxic T lymphocytes (CTL) are key players to suppress viral load (VL) but CTL responses become compromised with progression of HIV-infection/AIDS. Some progressors develop MHC-unrestricted CTL...