Search results for "LISA"

Use of bitumen-stabilised ballast for improving railway trackbed conventional maintenance

2018

Despite its many advantages, ballasted track needs frequent maintenance to ensure an adequate quality of service. However, tamping, traditionally used to correct geometry, causes ballast degradation and loosening of the already compacted ballast layer, which quickly returns the track to its pre-maintenance position. Then, other maintenance techniques such as stoneblowing, as well as diverse solutions that reinforce trackbed, have been developed to reduce ballast settlement and particles degradation. Given the need to further advance research in this field, bitumen-stabilised ballast (BSB) has started to be investigated by the authors as a feasible solution thanks to its easy and quick appl…

Lepori, Maria: Bande, fazioni, trame. La nobiltà rurale tra violenza e giustizia nella Sardegna del Settecento

2021

La banlieue du "20 heures". Ethnographie de la production d'un lieu commun journalistique

2013

International audience; Plongés dans un collectif de travail régi par des logiques économiques (audience, productivité), le poids des sources légitimes et des modèles professionnels importés de l’audiovisuel commercial, les journalistes de France 2 fabriquent et perpétuent les lieux communs sur les habitants des quartiers populaires pour satisfaire dans l’urgence la commande de reportages prédéfinis par leur hiérarchie. À partir d’une enquête menée au plus près des pratiques quotidiennes des journalistes, ce livre propose une explication sociologique à la permanence des représentations réductrices véhiculées par certains contenus médiatiques.

Pigmented desmoplastic trichilemmoma

2016

Desmoplastic trichilemmoma (DT), the pseudomalignant variant of conventional trichilemmoma described by Hunt et al in 1990, displays a superficial lobular growth pattern of glycogen-rich cells with peripheral nuclear palisading surrounded by a thickened basement membrane. DT differs from its conventional counterpart by showing a central hyalinized area with epithelial cords and strands mimicking invasive carcinoma. We report a case that fully satisfies the criteria for DT and, in addition, shows an extensive melanocytic cell component and prominent melanin deposition. To our knowledge, a pigmented variant of DT has not been reported and should be recognized in order to appropriately face th…

Five Challenges for Benefits Management in Complex Digitalisation Efforts – and a Research Agenda to Address Current Shortcomings

2019

Over the past decades a number of benefits realisation (BR) frameworks have been developed. The benefits management model (BMM) is considered to be the most widely adopted and is often seen as a reference for good practice in digitalisation efforts in single organisations. However, this literature provides little support for complex, inter‑organisational efforts. This is problematic, considering that digitalisation increasingly involves multiple organisations. To explore this gap, we studied the phenomenon in a Norwegian inter‑organisational eHealth effort. Based on a qualitative study involving 50 interviews, observations and document analyses, we identify five distinct challenges and sugg…

Recensione a: Stefano Bacin, Imperativo, Guida, Napoli 2011, in: "Il Cannocchiale", 2013.

2013

Si presenta il volume di Stefano Bacin, in cui l'autore analizza il concetto di imperativo nella filosofia kantiana e nelle elaborazioni etiche contemporanee.

Mentoring of newly qualified teachers. A bilateral comparison between Germany and Finland

2017

Mentoring stellt in der Begleitung von in den Beruf einsteigenden Lehrpersonen eine international gängige Praxis dar. Ausgehend von theoretischen und empirisch fundierten Annahmen wird in diesem Beitrag der Ansatz der practice architectures genutzt, um Formen des Mentorings in Deutschland und Finnland im Hinblick auf länderspezifische Verständnisse vom Berufseinstieg von Lehrpersonen und deren Professionalisierung zu untersuchen. (DIPF/Orig.) Internationally, mentoring is a well-recognized practice in supporting newly qualified teachers. Based on theoretical and empirical understanding, this paper compares mentoring practices in two countries: Germany and Finland. The theoretical framework …

Pollen‐tube growth rate and seed‐siring success among Betula pendula clones

1999

The aim of this study was to investigate whether genetically different pollen donors (Betula pendula clones) differed in pollen-tube growth rate across 11 maternal plants and in vitro, and whether the differences between the donors were consistent across the recipients. To compare the seed-siring success of competing pollen donors, a two-donor hand-pollination experiment with six donors and six recipients was conducted. The experiments were performed at a plastic-house seed orchard. The donors showed significant variation in pollen-tube growth rate on all the 11 recipients. The rankings of the pollen donors were statistically consistent across different maternal plants. A significant positi…

Les limites de la procédure d'estimation de Kmenta d'une fonction CES généralisée

1982

Towards Service-oriented 5G: Virtualizing the Networks for Everything-as-a-Service

2018

It is widely acknowledged that the forthcoming 5G architecture will be highly heterogeneous and deployed with a high degree of density. These changes over the current 4G bring many challenges on how to achieve an efficient operation from the network management perspective. In this article, we introduce a revolutionary vision of the future 5G wireless networks, in which the network is no longer limited by hardware or even software. Specifically, by the idea of virtualizing the wireless networks, which has recently gained increasing attention, we introduce the Everything-as-a-Service (XaaS) taxonomy to light the way towards designing the service-oriented wireless networks. The concepts, chall…