Search results for "forme"
showing 10 items of 1192 documents
Civil society participation in international decision making: recent developments and future perspectives in the indigenous rights arena
2012
This article focuses on key issues and recent developments concerning indigenous peoples' involvement in international decision making affecting their rights and interests. Based on a human rights-based approach to participation, it suggests that while a number of positive steps have been taken to allow indigenous peoples the possibility to take part to, and influence, relevant intergovernmental decision-making processes, there's a need to provide their own self-governing institutions and organisations with a more influential status than that granted to civil society organisations (CSOs) generally, whereby they can exercise different levels of participatory rights, depending upon the nature…
Metrological performances of voltage and current instrument transformers in harmonics measurements
2018
In the new electrical system scenario, the increasing presence of non-linear loads and renewable energy sources makes the measurement of harmonics an essential task. The accuracy of harmonic measurement firstly depends on the used instrument transformers for voltage and current sensing. Since the behavior of instrument transformers in non-sinusoidal conditions is not always well defined, this paper presents an experimental study on the metrological performances of current and voltage instrument transformers (CTs and VTs) in the presence of harmonics. Proper tests procedures are defined and measurement setups are developed for both CTs and VTs calibration. The analysis is carried out by usin…
Current transformers effects on the measurement of harmonic active power in LV and MV networks
2011
The harmonic active power is used to determine the location of polluting loads, the direction of harmonic power flow and to estimate how consequential a certain current harmonic source is. The highest uncertainties, when measuring harmonic active power, are introduced by the current and voltage transducers. This paper presents experimental results which show the impact of current transformers (CTs) on the accuracy of the harmonic power measurements. An expression for the evaluation of the power error in distorted conditions was developed which can be easily utilized in the case of linear current transducers. It is shown how CTs cannot be considered linear transducers and how the higher the …
Interpretazione conforme e processo penale
2012
Breeding near heterospecifics as a defence against brood parasites: can redstarts lower probability of cuckoo parasitism using neighbours?
2022
Breeding habitat choice based on the attraction to other species can provide valuable social information and protection benefits. In birds, species with overlapping resources can be a cue of good quality habitats; species with shared predators and/or brood parasites can increase joint vigilance or cooperative mobbing, while raptors may provide a protective umbrella against these threats. We tested whether the migratory common redstart (Phoenicurus phoenicurus) is attracted to breed near active nests of the great tit (Parus major), a keystone-information source for migrant passerine birds, or a top predator, the northern goshawk (Accipiter gentilis). This system is unique to test these quest…
Design and Realization of a Bidirectional Full Bridge Converter with Improved Modulation Strategies
2020
In this paper a Full-Bridge Converter (FBC) for bidirectional power transfer is presented. The proposed FBC is an isolated DC-DC bidirectional converter, connected to a double voltage source&mdash
Testing a physical education-delivered autonomy supportive intervention to promote leisure-time physical activity in lower secondary school students:…
2020
© 2020 The Author(s). Background: Inadequate physical activity in young people is associated with several physical and mental health concerns. Physical education (PE) is a potentially viable existing network for promoting physical activity in this population. However, little research has been conducted on whether PE teachers can influence students' engagement in leisure-time physical activity. The present study therefore examined the efficacy of an intervention aimed at increasing PE teachers' autonomy support on students' leisure-time physical activity (the PETALS trial). The intervention was guided by the trans-contextual model (TCM) explaining the processes by which PE teachers' provisio…
Le choix de la forme organisationnelle en matière d’investissement en R&D à l’étranger par les firmes multinationales:la contribution de la théorie d…
2008
(VF)L’objectif de ce papier est d’évaluer la contribution de la théorie des coûts de transaction à l’explication du choix du mode de gouvernance des activités de R&D à l’étranger par les firmes multinationales. Nous avons identifié principalement trois grandes formes organisationnelles en matière d’investissement en R&D à l’étranger:l’internalisation totale, les alliances en R&D et l’externalisation totale (licences unilatérales). Suite à une étude quantitative par le biais d’un questionnaire diffusé auprès de 769 firmes multinationales, nos principaux résultats montrent que le choix de l’internalisation des activités de R&D est favorisé en cas de fréquence élevée des transactions, le choix…
Teologiczny postkalwinizm
2018
Artykuł ukazuje kilka teorii ilustrujących wpływ Jana Kalwina na teologiczne dziedzictwo jego nauki. Wylicza cztery płaszczyzny widocznych wpływów. Związane są one z rozwojem ortodoksji reformowanej, purytanizmu, neoortodoksji oraz teologii wyzwolenia.
intervento
2017
l'articolo esamina alcuni profili critici del lavoro su piattaforma nella gig economy