User profiles for P. Colmenares
PJ ColmenaresUniversidad de Los Andes Verified email at ula.ve Cited by 266 |
Stochastic effects of the solvent on the absorptive and dispersive processes in a two-level system up to first order in the external field
… In this work, we will employ the technique applied by Colmenares (1993) in different
context. The procedure is based on taking the ensemble average of equation (4) over all …
context. The procedure is based on taking the ensemble average of equation (4) over all …
Generalized dynamics and fluctuation-dissipation theorem for a parabolic potential
PJ Colmenares - Physical Review E, 2023 - APS
This article revisits the fluctuation-dissipation relationship of a generalized Brownian particle
constrained in a harmonic potential and immersed in a thermal bath whose degrees of …
constrained in a harmonic potential and immersed in a thermal bath whose degrees of …
Fourteen new generic and ten new specific synonymies in Pholcidae (Araneae), and transfer of Mystes Bristowe to Filistatidae
BD Huber, PA Colmenares, MJ Ramirez - 2014 - ri.conicet.gov.ar
Between 1998 and 2011, the Venezuelan arachnologist Manuel Ángel González-Sponga (GS)
published a series of taxonomic papers devoted to the Pholcidae of Venezuela. Of his 22 …
published a series of taxonomic papers devoted to the Pholcidae of Venezuela. Of his 22 …
[HTML][HTML] High prevalence of asthma symptoms in Warao Amerindian children in Venezuela is significantly associated with open-fire cooking: a cross-sectional …
…, E Valladares, J Goecke, L Rasquin, P Colmenares… - Respiratory …, 2013 - Springer
… daily in the household (p < 0.01) and negatively associated with age (p < 0.01). A … p < 0.01).
Furthermore, prevalence of asthma symptoms was significantly higher in boys than in girls (p …
Furthermore, prevalence of asthma symptoms was significantly higher in boys than in girls (p …
Molecular dynamics and analytical Langevin equation approach for the self-diffusion constant of an anisotropic fluid
We carried out a molecular-dynamics (MD) study of the self-diffusion tensor of a Lennard-Jones-type
fluid, confined in a slit pore with attractive walls. We developed Bayesian equations, …
fluid, confined in a slit pore with attractive walls. We developed Bayesian equations, …
Direct evaluation of the position dependent diffusion coefficient and persistence time from the equilibrium density profile in anisotropic fluids
W Olivares-Rivas, PJ Colmenares… - The Journal of Chemical …, 2013 - pubs.aip.org
We derive expressions for the transverse diffusion coefficient D (z) and the average persistence
time τ (z; L) within a layer of width L, for particles of a non-homogeneous fluid enclosed …
time τ (z; L) within a layer of width L, for particles of a non-homogeneous fluid enclosed …
Fokker-Planck equation of the reduced Wigner function associated to an Ohmic quantum Langevin dynamics
PJ Colmenares - Physical Review E, 2018 - APS
This article has to do with the derivation and solution of the Fokker-Planck equation
associated to the momentum-integrated Wigner function of a particle subjected to a harmonic …
associated to the momentum-integrated Wigner function of a particle subjected to a harmonic …
A formalism to analyze effects of the electromagnetic field on the optical properties of a two-level system immersed in a thermal bath
… Thus, considering Xs as the expansion parameter, we can write the coherence p,Ju) …
The superscripts Re P and Im P denote that these magnitudes were derived from the real and …
The superscripts Re P and Im P denote that these magnitudes were derived from the real and …
[PDF][PDF] Cryptic diversity in the whip spider genus Paraphrynus (Amblypygi: Phrynidae): integrating morphology, karyotype and DNA
…, P Colmenares… - Arthropod …, 2020 - arthropod-systematics.arphahub …
… Although the gonopod processus internus is well developed in P. pseu domexicanus and …
Seiter coordinated the study and conducted the morphological analysis; Colmenares and …
Seiter coordinated the study and conducted the morphological analysis; Colmenares and …
On the optical stochastic Bloch equations
We present a methodology, based on the use of a theorem due to Novikov, to solve the
optical stochastic Bloch equations for a two-level system up to first order in the external field in …
optical stochastic Bloch equations for a two-level system up to first order in the external field in …