Coupling and higher-order effects in the 12C(d,p)13C and 13C(p,d)12C reactions

Coupled channels calculations are performed for the 12C(d,p)13C and 13C(p,d)12C reactions between 7 and 60 MeV to study the effect of inelastic couplings in transfer reactions. The effect of treating transfer beyond Born approximation is also addressed. The coupling to the 12C 2+ state is found to change the peak cross-section by up to 15 %. Effects beyond Born approximation lead to a significant renormalization of the cross-sections, between 5 and 10 % for deuteron energies above 10 MeV, and larger than 10 % for lower energies. We also performed calculations including the remnant term in the transfer operator, which has a small impact on the 12C(d,p)13C(g.s.) and 13C(p,d)12C(g.s.) reactions. Above 30 MeV deuteron energy, the effect of the remnant term is larger than 10 % for the 12C(d,p)13C(3.09 MeV) reaction and is found to increase with decreasing neutron separation energy for the 3.09 MeV state of 13C. This is of importance for transfer reactions with weakly bound nuclei.Comment: 7 pages, 7 figures, submitted to Phys. Rev.

Peripherality of breakup reactions

The sensitivity of elastic breakup to the interior of the projectile wave function is analyzed. Breakup calculations of loosely bound nuclei (8B and 11Be) are performed with two different descriptions of the projectile. The descriptions differ strongly in the interior of the wave function, but exhibit identical asymptotic properties, namely the same asymptotic normalization coefficient, and phase shifts. Breakup calculations are performed at intermediate energies (40-70 MeV/nucleon) on lead and carbon targets as well as at low energy (26 MeV) on a nickel target. No dependence on the projectile description is observed. This result confirms that breakup reactions are peripheral in the sense that they probe only the external part of the wave function. These measurements are thus not directly sensitive to the total normalization of the wave function, i.e. spectroscopic factor.Comment: Reviewed version accepted for publication in Phys. Rev. C; 1 new section (Sec. III E), 2 new figures (Figs. 3 and 5

El rol mediador de la virtuosidad en la gestión de recursos humanos y los resultados del trabajo

In this study, we explore the role of organizational virtuousness (OV) as a mechanism through which human resource management practices (HRMP) affect employee outcomes. We propose that HRMP lead to higher levels of organizational citizenship behaviors and affective commitment by stimulating OV. In a sample of 525 workers, from 22 stores of a retailing company, we found evidence that HRMP predicts OV, in turn predicting members’ citizenship behaviors and affective commitment. By suggesting this new mediator, this study contributes to a better understanding of the causal chain linking HRMP and performance.info:eu-repo/semantics/publishedVersio

Individualism vs. collectivism in a sharing economy context: A study on what determines Portuguese consumers’ participation

Consumers rely on warmth and competence, two fundamental dimensions that drive social judgments of people, to form perceptions of companies and, ultimately, make their market consumption decisions. In a Sharing Economy (SE) context, however, are there more profound and hidden motives for consumer behavior, namely the orientation–individualistic/idiocentric or collectivist/allocentric (Triandis & Gelfand, 1998) –of individuals of a given culture, for example? Meaning: does an individualistic/idiocentric orientation (in a “selfish” and “opportunistic” perspective without any kind of collectivist concerns that they are participating in something that is for the good of society and community as a whole) and/or a collectivist/allocentric orientation (in an “altruist” perspective, towards a collectivist/communal orientation) play a central role in determining consumers’ willingness to participate in sharing-based programs (SBP) of the SE? Furthermore, what drives such relationship? Meaning: what mediates such two variables (independent variable: individualism/collectivism; and dependent variable: willingness to participate)? In searching for an answer, this research conducted two studies: 1) Correlation –with the aim to find out whether these two variables are associated or related in some way, in other words, whether Individualism and/or Collectivism have a positive, a negative or no effect whatsoever on the willingness to participate in SBP of the SE; 2) Mediation analysis –with the aim to find out what explains (what mediates) the relationship between the two variables. Having Portuguese consumers as our targeted population, our tentative findings are expected to reveal that (i) individualism is the dominant dimension that plays a determinant role in influencing Portuguese consumer’s participation in the SE and (ii) such relationship is driven by the transformation expectations that such participation may in stil in their lives –at the level of emotions and experiential benefits. We present an innovative research, as, to the best of our knowledge, it is the first in investigating the relationship between individualistic/idiocentric or/and collectivist/allocentric orientation and consumers’ participation in SBP of the SE.info:eu-repo/semantics/acceptedVersio

From hospital to post-acute care organizations: the relationship between patient experience and health recovery

Objective: To determine to what extent patient health status and recovery in post-acute care organizations (PACO) is related to patient experience of the discharge process from hospital and to patient experience while staying in these facilities. Design: Longitudinal study of patients discharged from hospitals to post-acute care organizations. Setting: 12 hospitals and 14 PACO Portuguese organizations. Participants: 181 patients participated in the both stages of data gathering. Main Outcome Measures: Patients’ physical and mental health status was measured through the SF-36 scale. The experience of transition from hospital to post-acute care organizations was measured with the Care Transition Measure. The Picker Adult In-Patient Questionnaire was used to measure patients’ experience in these organizations. Results: Patients reporting better physical condition in post-acute care organizations had a better experience on discharge [b = 0.21, 95% CI (0.10, 0.31)] and perceive fewer problems inside facilities [b = -0.19, 95% CI (-0.31, 0.08)]. The experience in post-acute care organizations is significantly related to patients’ mental health status [b = -0.47, 95% CI (-0.59, -0.36)]. Patients showing higher levels of physical recovery had a better experience on discharge [b = -0.18, 95% CI (0.08, 0.28)], while those registering better mental recovery experienced fewer problems during their stay [b = -0.41, 95% CI (-0.52, -0.30)]. Conclusions: PACO play a key role in maintaining and promoting patients’ health and this goal is influenced by their experience both in the transition from hospitals to PACO and while staying in these facilities.info:eu-repo/semantics/acceptedVersio