Search results for " jun"

Schede didattiche per Docenti, “Conoscere per conservare la biodiversità”, Diversità dal cielo scheda 10

2007

Si tratta di una scheda didattica per docenti sul tema dell'educazione ambientale applicata all'insegnamento dell'astronomia di base. Il percorso didattico prevede osservazioni dirette, uso di strumenti astronomici come lo gnomone durante il corso delle stagioni, nonché attività artistiche ed espressive. La pubblicazione è stata realizzata all'interno del progetto Junior Ranger per la Natura della Sicilia, realizzato da Europarc Federation su commissione di ARPA Sicilia.

A Logic Fuzzy Model for Evaluation of the Railway Station’s Practice Capacity in Safety Operating Conditions

2013

Abstract The practice capacity of a railway junction depends, in addition to the effective operation’s conditions, by the potential risk factors related to the design plan of the railway station. With the aim of an approach based on the “fuzzy sets” it is possible to determine the numeric value of the practice capacity by the logic - qualitative relations between the features of the railway junction and the potential risk factors. This methodology permits to try out the absolute value of a suitable vector β, (less then the unit) for the utilization of the theoretic capacity in conditions of maximum reliability of the system related to the aspect of safety (technique “fail safe”).

Gap junction intercellular communication (GJIC) is regulated by plasmalogens in retinal macroglial cells

2019

International audience

Distribution and Function of Gap Junction Coupling in Cortical GABAergic Neurons.

2013

Although gap junctions have been observed in GABAergic interneurons of several brain regions, this chapter focuses on the distribution and functions of gap junctions and connexins in inhibitory interneurons of the cerebral cortex and hippocampus. Evidence for interconnections mediated by electrical synapses is reported for at least eight cerebral cortex interneuron types, classified on the basis of morphology, electrophysiology and molecular markers. The main differences in the organization of these interneuronal networks are summarized in terms of homologous and heterologous electrical coupling and mutual chemical inhibition. The role of connexin36 (Cx36) in forming neuronal electrical syn…

How to make a transverse triple junction—New evidence for the assemblage of Gondwana along the Kaoko-Damara belts, Namibia

2016

T-shaped orogenic triple junctions between mobile belts usually form in two unrelated stages by subsequent and oblique continental collisions separated by a significant time span. Besides these “oblique triple junctions”, another type, named “transverse triple junctions”, may exist. Such junctions are created by a more complex mechanism of partly contemporaneous convergence of three cratons in a restricted time frame, involving strike slip. The Neoproterozoic–Cambrian Kaoko-Damara junction between the Rio de la Plata, Congo, and Kalahari cratons in Namibia is an example of such a transverse orogenic triple junction, formed by at least four subsequent but partly related deformation events. I…

Cultivating a ‘Digital Jungle’ : Toward a Hybrid Governance Perspective on Infrastructure Evolution

2020

Digital infrastructures (DIs) evolve rather than following planned development trajectories. We know this phenomenon as drift, that is, infrastructures drift from management control. Infrastructure drift has motivated research into infrastructure governance recognizing two governance approaches: top-down and bottom-up. Yet, what happens if an organization engaging in its digital transformation expands its DI following top-down governance while simultaneously introducing elements of bottomup governance? We study how an industrial manufacturer expanded its DI for collaboration top-down while also giving employees leeway for bottom-up governance. As a result, it found that its digital collabor…

On the Fast and Rigorous Analysis of Compensated Waveguide Junctions Using Off-Centered Partial-Height Metallic Posts

2007

In this paper, we present an efficient and rigorous method, based on the 3-D boundary integral-resonant-mode expansion technique, for the analysis of multiport rectangular waveguide junctions compensated with partial-height cylindrical metallic posts. The electrical performance of a great variety of commonly used wideband microwave circuits has been improved drastically thanks to the introduction of a new design parameter, i.e., the relative position of the metallic post in the structure. To the authors' knowledge, this parameter has not been taken into account in previous studies concerning compensated junctions using partial-height metallic posts. The developed tool has been successfully …

Fabrication, Electrical Characterization and 1/f Noise Study of Submicron-sized Superconducting Tunnel Junctions

2016

L’importance de l’image dans le malaise social. Colloques de Bruxelles. « L’Esprit de ce temps et l’Esprit des profondeurs », Château de la Hulpe, S…

2019

Noise phenomena and soliton dynamics in long Josephson junctions

2013

In this work we computationally explore the transient dynamics of a noisy Josephson junction (JJ). Principal purpose is to investigate the behavior of the lifetime of the superconductive state as a function of the system and noise source parameters. The relations between the emerging phenomena and the evolution of the JJ order parameter φ, that is the phase difference between the macroscopic wave functions describing the superconducting condensate in the two electrodes, is deeply investigated. We focus our interest on the switching events from the superconducting metastable state, and in particular on the mean escape time (MET). In the used model, a long JJ can be represented by a string co…