Search results for " CAD"
showing 10 items of 211 documents
Production of very neutron-deficient isotopes near Sn via reactions involving light-particle and cluster emission
2000
Abstract The production of very neutron-deficient isotopes near 100Sn has been investigated by using on-line mass separation of evaporation residues produced by heavy-ion induced complete-fusion reactions. We measured the cross sections for 99Cd, 100In, 101Sn and 102In via 58Ni+58Ni fusion reactions followed by cluster emission, and via 58Ni+50Cr fusion reactions accompanied by evaporation of protons, neutrons or α particles. Both types of reactions yield similar cross sections for the production of exotic nuclei near 100Sn. The data are discussed in comparison with results obtained from statistical-model calculations.
Medium-spin structure of neutron-rich Pd and Cd isotopes
2003
Cadmium isotopes are traditionally considered as good examples of nearly spherical, vibrational nuclei, which can be described by quadrupole vibrators in the collective model, as well as the U(5) dynamical symmetry in the interacting boson model (IBM). However, the shape coexistence of more deformed intruder states originating from proton 2p–4h excitation across the Z = 50 major shell is another interesting structural aspect, whose presence in Pd-isotopes has also been demonstrated [1,2].
First Glimpse of the N=82 Shell Closure below Z=50 from Masses of Neutron-Rich Cadmium Isotopes and Isomers
2020
We probe the $N=82$ nuclear shell closure by mass measurements of neutron-rich cadmium isotopes with the ISOLTRAP spectrometer at ISOLDE-CERN. The new mass of $^{132}\mathrm{Cd}$ offers the first value of the $N=82$, two-neutron shell gap below $Z=50$ and confirms the phenomenon of mutually enhanced magicity at $^{132}\mathrm{Sn}$. Using the recently implemented phase-imaging ion-cyclotron-resonance method, the ordering of the low-lying isomers in $^{129}\mathrm{Cd}$ and their energies are determined. The new experimental findings are used to test large-scale shell-model, mean-field, and beyond-mean-field calculations, as well as the ab initio valence-space in-medium similarity renormalizat…
Spins and electromagnetic moments of Cd101–109
2018
The neutron-deficient cadmium isotopes have been measured by high-resolution laser spectroscopy at CERN-ISOLDE. The electromagnetic moments of $^{101}\mathrm{Cd}$ have been determined for the first time and the quadrupole-moment precision of $^{103}\mathrm{Cd}$ has been vastly improved. The results on the sequence of $5/{2}^{+}$ ground states in $^{101--109}\mathrm{Cd}$ are tentatively discussed in the context of simple structure in complex nuclei as similarities are found with the $11/{2}^{\ensuremath{-}}$ states in the neutron-rich cases. Comparison with shell-model calculations reveals a prominent role of the two holes in the $Z=50$ core.
Promptγ-ray spectroscopy of the neutron-rich124Cd
2013
Prompt γ -ray spectroscopy of neutron-rich cadmium isotopes has been performed. The nuclei of interest have been populated via a 25-MeV, proton-induced fission of the 238 U thick target and prompt γ -rays measured using the multi-detector HPGe array JUROGAM II. New high-spin decays have been observed and placed in the level scheme using triple coincidence gates. The experimental results are compared to shell-model calculations and show good agreement.
SVB en el adulto: parada cardiorespiratoria
2010
Procedimiento a seguir ante una parada cardiorespiratoria en el adulto. El sujeto esta inconsciente, no respira y no presenta pulso. Compresiones toracicas y ventilaciones (30:2). Revalorización periódica cada dos minutos, hasta que acude el equipo de soporte vital avanzado.
Il processo civile telematico. 2. Duplicati informatici, copie informatiche, attestazione di conformità
2023
L’autore esamina la nuova disciplina, introdotta dal d.lgs. 149/2022 nel codice civile, in materia di duplicati informatici, copie informatiche e attestazione di conformità, evidenziandone le criticità, con particolare riferimento all’insufficiente coordinamento delle disposizioni con il Codice dell’Amministrazione Digitale.
Development of the private university in angola and professionalization of lecturers
2021
Our research comes within the scope of Social Sciences, and more particularly within Management Sciences, since our central question concerns the professionalization of lecturers, their career path, their training practices, and their skills.Two surveys carried out among a sample of lecturers from private universities in Angola, as well as analyses of responses to closed and open questionnaires, show that human resources management concerns both lecturers and the future managers trained by them.
Sea urchin embryos exposed to cadmium as an experimental model for studying the relationship between autophagy and apoptosis
2014
The sea urchin embryo is a suitable model that offers an excellent opportunity to investigate different defence strategies activated in stress conditions. We previously showed that cadmium accumulates in a dose- and time-dependent manner into embryonic cells, activating different stress and defence mechanisms, including the synthesis of HSPs and the onset of apoptosis and/or autophagy. In this paper we investigated the functional relationship between autophagy and apoptosis, evaluating apoptosis signals in cadmium-exposed Paracentrotus lividus embryos with inhibited autophagy. We found that the inhibition of autophagy produced the concurrent reduction of apoptosis, suggesting that the two p…