940 research outputs found
First results from the INDRA-FAZIA apparatus on isospin diffusion in 58,64 Ni+58,64 Ni systems at Fermi energies
An investigation of the isospin equilibration process in the reactions 58;64Ni+58;64Ni at two bombarding
energies in the Fermi regime (32 MeV/nucleon and 52 MeV/nucleon) is presented. Data
have been acquired during the first experimental campaign of the coupled INDRA-FAZIA apparatus
in GANIL. Selecting from peripheral to semi-central collisions, both the neutron content of the
quasiprojectile residue and that of the light ejectiles coming from the quasiprojectile evaporation
have been used as probes of the dynamical process of isospin diffusion between projectile and target
for the asymmetric systems. The isospin transport ratio technique has been employed. The relaxation
of the initial isospin imbalance with increasing centrality has been clearly evidenced. The
isospin equilibration appears stronger for the reactions at 32 MeV/nucleon, as expected due to the
longer projectile-target interaction time than at 52 MeV/nucleon. Coherent indications of isospin
equilibration come from the quasiprojectile residue characteristics and from particles ascribed to
the quasiprojectile decay.This work was partially supported by the National Research Foundation of Korea (NRF;
Grant No. 2018R1A5A1025563) and by the Spanish Ministerio de Econom a y Empresa
(PGC2018-096994-B-C22). We acknowledge support from R egion Normandie under R eseau
d'Int er^et Normand FIDNEOS (RIN/FIDNEOS). Many thanks are due to the accelerator
sta of GANIL for delivering a very good quality beam and to the technical sta for the
continuous support
On the effect of measurementmodel misspecification in PLS Path Modeling: the reflective case
The specification of a measurement model as reflective or formative is the object of a lively
debate. Part of the existing literature focuses on measurement model misspecification. This
means that a true model is assumed and the impact on the path coefficients of using a wrong
model is investigated. The majority of these studies is restricted to Structural Equation
Modeling (SEM). Regarding PLS-Path Modeling (PLS-PM), a few authors have carried out
simulation studies to investigate the robustness of the estimates, but their focus is the
comparison with SEM. The present paper discusses the misspecification problem in the PLSPM
context from a novel perspective. First, a real application on Alumni Satisfaction will be
used to verify whether different assumptions for the measurements models influence the
results. Second, the results of a Monte-Carlo simulation study, in the reflective case, will help
to bring some clarity on a complex problem that has not been sufficiently studied yet
Estimativa de diversidade genética de Cedro (Meliaceae), uma espécie ameaçada.
bitstream/CENARGEN/29612/1/cot171.pd
Análise genética em populações de Butia eriospatha (Mart. ex Drude) Becc utilizando marcadores moleculares RAPD.
bitstream/CENARGEN/29611/1/cot170.pd
Protocolo para desenvolvimento de marcadores microssatélites.
bitstream/CENARGEN/24380/1/ct020.pd
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