Search results for " action"
showing 10 items of 3633 documents
Towards a framework for assessment and management of cumulative human impacts on marine food webs
2015
Effective ecosystem-based management requires understanding ecosystem responses to multiple human threats, rather than focusing on single threats. To understand ecosystem responses to anthropogenic threats holistically, it is necessary to know how threats affect different components within ecosystems and ultimately alter ecosystem functioning. We used a case study of a Mediterranean seagrass (Posidonia oceanica) food web and expert knowledge elicitation in an application of the initial steps of a framework for assessment of cumulative human impacts on food webs. We produced a conceptual seagrass food web model, determined the main trophic relationships, identified the main threats to the fo…
"Yksilöllistä huomiota arkisissa tilanteissa" : päiväkodin toimintakulttuurin kehittäminen lasten itsetuntoa vahvistavaksi
2007
Itsetunnon perustaa rakennetaan päiväkoti-iässä. Päivi Koiviston tutkimus yhden päiväkodin toimintakulttuurista osoittaa, että lasten itsetunnon vahvistaminen päiväkodin arjessa on mahdollista, mutta se vaatii kasvattajilta ja koko työyhteisöltä tietoista toimintaa ja uskallusta oman työn kriittiseen arviointiin ja kehittämiseen. Lasten itsetunnon vahvistaminen on vaativa ja moniulotteinen tehtävä. Koivisto kehitti teoriaa ja käytäntöä yhdistäen mallin niistä tekijöistä, jotka osoittautuivat oleellisiksi lasten itsetunnon vahvistamisessa päiväkodin arkipäivän tilanteissa. – Mielenkiintoista oli havaita lasten arvostavan näitä samoja asioita, joihin tutkimuksen aikana yritettiin kiinnittää h…
Dual action of phosphonate herbicides in plants affected by herbivore—Model study on black bean aphid Aphis fabae rearing on broad bean Vicia faba pl…
2008
Abstract The interactions between plants, herbicides and herbivore insects were studied as an aspect of possible side effect of the using of phosphonate herbicides. The experimental system was composed of phosphonate herbicides, broad bean Vicia faba (L.) plants and black bean aphid Aphis fabae (Scopoli). Two means of herbicide application, namely standard spraying and direct introduction of the herbicide into stem via glass capillary, were examined. The results obtained for N-2-piridylaminomethylene bisphosphonic acid and its derivatives show 10 times higher inhibition of the plant growth if glass capillary mode was used. When plants were infested by aphids 24 h after the use of herbicide,…
Fate of organic pollutants after sewage sludge spreading on agricultural soils: a 30-years field-scale recording
2006
Le DOI mentionné dans l'article 10.2166/WPT.2007.008 ne fonctionne pas; International audience; Toxic organic compounds, such as the surfactants linear alkylbenzene sulfonates (LAS) and nonylphenol polyethoxylates (NPE), Polycyclic aromatic hydrocarbons (PAH) and residues derived from plastics (PAE-phthalates) end up in sewage sludge. In order to evaluate and quantify the potential environmental risks associated with the xenobiotic introduction into biological life cycle, the EU BIOWASTE project (QLK5-CT-2002-01138) devotes one task to the study of the fate of xenobiotic in a sandy soil after sludge spreading on a 30-year field-scale record experiment. Experimental maize crop fields from Bo…
Percorsi della devianza e della diversità. Dall'"uomo atavico" al "senza permesso di soggiorno"
2007
Il volume, oltre a tracciare l’evoluzione dei concetti riconducibili all’ampia fenomenologia delle condotte devianti, ne rintraccia ed evidenzia i processi culturali e sociali che vi fanno da sfondo. Costituendosi come un articolata ed approfondita riflessione sulle teorie dell'agire sociale e sui i modi con cui si determinano le relazioni, il volume si sofferma sulle strategie argomentative e i processi interpretativi con cui i “devianti” – gli stranieri, i “senza fissa dimora”, i “diversi”, i “disoccupati” – costituendo proiettivamente una minaccia all’ordine sociale, sono stati nel tempo individuati, etichettati ed emarginati dalle istituzioni. Ogni capitolo è correlato, oltre che da una…
Social media influencer: a new hybrid professionalism in the age of platform capitalism?
2023
International audience; Chapter 13 Social media influencer: a new hybrid professionalism in the age of platform capitalism? by P. Sedda and O. Husson, analyses the way social media influencers, acting in the context of communities of practice, participate in redefining professionalism and professional practices in marketing and communications fields while promoting social values or advocating for a cause of public interest. Using a methodological approach based on interviews and ethnographic observation, the study considers the influencer as a specific case of “hybrid professionalism” (Noordegraaf 2007) in which quantitative performance criteria, prescribed by platforms, are combined with c…
On-Orbit Degradation of Solar Instruments
2013
International audience; We present the lessons learned about the degradation observed in several space solar missions, based on contributions at the Workshop about On-Orbit Degradation of Solar and Space Weather Instruments that took place at the Solar Terrestrial Centre of Excellence (Royal Observatory of Belgium) in Brussels on 3 May 2012. The aim of this workshop was to open discussions related to the degradation observed in Sun-observing instruments exposed to the effects of the space environment. This article summarizes the various lessons learned and offers recommendations to reduce or correct expected degradation with the goal of increasing the useful lifespan of future and ongoing s…
Total absorption γ -ray spectroscopy of niobium isomers
2019
15 pags. 17 figs., 5 tabs.
Urban Heat Island Monitoring and Impacts on Citizen's General Health Status in Isfahan Metropolis: A Remote Sensing and Field Survey Approach.
2020
Urban heat islands (UHIs) are one of the urban management challenges, especially in metropolises, which can affect citizens’ health and well-being. This study used a combination of remote sensing techniques with field survey to investigate systematically the effects of UHI on citizens’ health in Isfahan metropolis, Iran. For this purpose, the land surface temperature (LST) over a three-year period was monitored by Landsat-8 satellite imagery based on the split window algorithm. Then, the areas where UHI and urban cold island (UCI) phenomena occurred were identified and a general health questionnaire-28 (GHQ-28) was applied to evaluate the health status of 800 citizens in terms o…
Concilier finance et management. Un problème d'architecture organisationnelle
2009
This article has two objectives. On the one hand, it aims to explain the disturbances brought by finance to management as a problem of inconsistency or organizational architecture. On the other hand, it suggests some ways of reconciliation between finance and the other management functions. This reconciliation could be based on an evolution of the financial theory in order to be closer to the other management sciences, end on a subordination of financial performance objectives and indicators in the management of the firm