Kondo and Dicke effect in quantum-dots side coupled to a quantum wire

Electron tunneling through quantum-dots side coupled to a quantum wire, in equilibrium and nonequilibrium Kondo regime, is studied. The mean-field finite-$U$ slave-boson formalism is used to obtain the solution of the problem. We have found that the transmission spectrum shows a structure with two anti-resonances localized at the renormalized energies of the quantum dots. The DOS of the system shows that when the Kondo correlations are dominant there are two Kondo regimes with its own Kondo temperature. The above behavior of the DOS can be explained by quantum interference in the transmission through the two different resonance states of the quantum dots coupled to common leads. This result is analogous to the Dicke effect in optics. We investigate the many body Kondo states as a function of the parameters of the system.Comment: 5 figures. To appear in Phys. Rev.

Kondo effect in a double quantum-dot molecule under the effect of an electric and magnetic field

Electron tunneling through a double quantum dot molecule, in the Kondo regime, under the effect of a magnetic field and an applied voltage, is studied. This system possesses a complex response to the applied fields characterized by a tristable solution for the conductance. The different nature of the solutions are studied in and out thermodynamical equilibrium. It is shown that the interdot coupling and the fields can be used to control the region of multistability. The mean-field slave-boson formalism is used to obtain the solution of the problem.Comment: 5 pages, 4 figures. To appear in Sol. State Com

Nurturing Cultural Humility and Responsiveness Through Restorative Pedagogy In Graduate Education

In an increasingly diverse world that is characterized by significant social and educational inequities, the development of educators and leaders who embody cultural humility and culturally responsive practices is necessary and transformational. Moving beyond individual and deficit-centered models of student support systems towards ecological and relational paradigms of education are critical to the goals of equity and justice. In order to make progress on these goals, training programs must prioritize and embed the values of cultural humility and culturally responsive practice as foundational constructs for future educators. This multi-authored reflective paper describes the use of Restorative Pedagogy, an approach grounded in Restorative Justice and Practices, as a vehicle to facilitate the development of these important qualities. Key concepts and activities used within a graduate level course designed for students studying to be school counselors, school psychologists, and school leaders are described throughout. Limitations and implications for this pedagogical approach are also included

Density-Dependent Prevalence of Francisella tularensis in Fluctuating Vole Populations, Northwestern Spain

Self Archiving; https://wwwnc.cdc.gov/eid/page/copyright-and-disclaimers J.J.L.L., F.M., and R.R.P. held official licenses for trapping wildlife in Spain. Capture permits were provided by the Dirección General del Medio Natural, Junta de Castilla y León. This study was supported by projects ECOVOLE (grant CGL2012-35348), ECOTULA (grant CGL2015-66962-C2-1-R), and RESERTULA (grant CLG2015-66962-C2-2-R), which were funded by the Ministerio de Economía y Competitividad MINECO/FEDER, Spain. R.R.P. was supported by a PhD studentship from the University of Valladolid (co-funded by Banco Santander).Peer reviewedPublisher PD

Tristability in a non-equilibrium double-quantum-dot in Kondo regime

Electron tunneling through a non-equilibrium double quantum dot in the Kondo regime is studied. In the region of negative differential resistance, it is shown that this system possesses a complex response to the applied potential characterized by a tristable solution for the current. Increasing the applied potential or reducing the inter-dot coupling, the system goes through a transition from a coherent inter-dot regime to an incoherent one. The different nature of the solutions are characterized and it is shown that the effects of the asymmetry in the dot-lead coupling can be used to control the region of multistability. The mean-field slave-boson formalism is used to obtain the solution of the problem.Comment: 4 pages, 4 figures. To appear in Sol. State. Com

Impact accelerations during a prolonged run using a microwavable self-customised foot orthosis

[EN] The use of custom-made foot orthoses has been associated with numerous benefits, such as decreased impact accelerations. However, it is not known whether this effect could be due to better customisation. The present study analysed the effects of the first generation of a microwavable prefabricated self-customised foot orthosis vs. a prefabricated standard one on impact accelerations throughout a prolonged run. Thirty runners performed two tests of 30-min running on a treadmill, each one with an orthosis condition. Impact acceleration variables of tibia and head were recorded every 5 min. Microwavable self-customised foot orthosis increased the following variables in the first instants compared to the prefabricated standard one: tibial peak (min1: 6.5 (1.8) vs. 6.0 (1.7) g, P = .009, min5: 6.6 (1.7) vs. 6.2 (1.7) g, P = .035), tibial magnitude (min1: 8.3 (2.6) vs. 7.7 (2.4) g, P = .030, min5: 8.5 (2.6) vs. 7.9 (2.5) g, P = .026) and shock attenuation (min1: 61.4 (16.8) vs. 56.3 (16.3)%, P = .014, min5: 62.0 (15.5) vs. 57.2 (15.3)%, P = .040), and tibial rate throughout the entire run (504.3 (229.7) vs. 422.7 (212.9) g/s, P = .006). However, it was more stable throughout 30-min running (P < .05). These results show that the shape customisation entailed by the thermoformable material does not provide impact acceleration improvements.This work was supported by the Centre for Industrial Technological Development (CDTI) [Project SPORT@FUTURE (IDI 20141290-IDI 20141296)], and the work of IJP was supported by the Ministry of Science, Innovation and Universities of the Spanish Government [grant number FPU 14/05626].Jiménez-Pérez, I.; Priego-Quesada, JI.; Camacho-García, A.; Cibrian Ortiz De Anda, RM.; Pérez-Soriano, P. (2021). Impact accelerations during a prolonged run using a microwavable self-customised foot orthosis. Sports Biomechanics. 1-15. https://doi.org/10.1080/14763141.2021.190255311

Irruptive mammal host populations shape tularemia epidemiology

Funding: This work was funded by Programa Estatal de I+D+i Orientada a los Retos de la Sociedad; Ministerio de Economía y Competitividad, Gobierno de España (Spain). This publication is part of the project ECOTULA (reference: CGL2015-66962-C2-1-R). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Peer reviewedPublisher PD