Search results for "exploitation"
showing 10 items of 122 documents
La valorisation de l'exploitation agricole : totem et tabou
2017
International audience; Depuis la profondeur des âges et l’ordre éternel des champs, les sociétés agraires se sont toujours montrées réfractaires à la finance. Jusqu’au tournant du milieu XXème siècle, l’esprit paysan – baigné de catholicisme - cultivait même soigneusement sa différence en regard du monde marchand. Il n’est guère étonnant, dans ce contexte, que la valorisation des exploitations agricoles fasse figure de tabou. Mais au-delà des mentalités, c’est la politique juridique française qui a rendu la question impensable. A l’origine de la loi, il y a le souci impérieux d’éviter la spéculation foncière. La terre étant le substrat de la plupart des unités de production agricoles, le l…
Ecosystem dynamics: exploring the interplay within fintech entrepreneurial ecosystems
2021
AbstractScholars and practitioners continue to recognize the crucial role of entrepreneurial ecosystems (EEs) in creating a conducive environment for productive entrepreneurship. Although EEs are fundamentally interaction systems of hierarchically independent yet mutually dependent actors, few studies have investigated how interactions among ecosystem actors drive the entrepreneurial process. Seeking to address this gap, this paper explores how ecosystem actor interactions influence new ventures in the financial technology (fintech) EE of Singapore. Guided by an EE framework and the use of an exploratory-abductive approach, empirical data from semi-structured interviews is collected and ana…
Why corporates syndicate their investments with a specific partner? An explorative analysis of corporate venture capital co-investments
2016
The 80% of corporates that engage in CVC activities, make these investments with other corporates, recognizing the strategic benefits provided by co-investors. Despite the relevance of this phenomenon, no studies focus on the motivations that drive a corporate to syndicate its investments and most important there are no researches that investigate antecedents that drive a corporate in choosing the partner with whom to syndicate the CVC investments. Thus, the aim of this paper is to study why corporates syndicate their CVC investment with a specific partner. Based on the CVC and the alliance literatures we propose a research framework that considers two main elements characterizing a CVC syn…
Special Issue: Enhancing Sustainable Performance in Organizational and Inter-Institutional Systems
2013
Sustainability is not just for Christmas… it’s for life. Sustainable solutions, whether sought in terms of business strategies, social policies, or the exploitation of natural resources have to serve organizations and communities in the long term, sometimes very long term, as well as the short term. Static analysis is unlikely to be able to evaluate candidate solutions fully, and is more likely to focus on the short-term future to the detriment of the longer-term. Sustainable solutions are more likely to be developed from studies based on deep analysis using systems approaches, and from system dynamics (SD) approaches in particular.
Vegetation and firewood uses in the western Catalan plain from Neolithic to the Middle Age
2011
In this study is presented the synthesis of the results of the anthracological analysis in the western Catalan plain from the Neolithic to the Middle Ages. The data is evaluated in order to provide a preliminary approximation on the development of vegetation and forest exploitation. S. Vila is funded by a FI-DGR 2010 scholarship,granted by the Generalitat de Catalunya (AGAUR), in the framework of the projects HAR2008-05256, and SGR2009-198.
Vulnerabilità, consenso, responsabilità: alcuni casi di grave sfruttamento lavorativo e tratta delle donne migranti in Italia
2017
A partire dalla definizione di sfruttamento e dalla problematizzazione dell'idea di libertà contrattuale e di consenso, il contributo analizza alcuni casi di grave sfruttamento lavorativo e di tratta ai danni delle donne migranti nell'ambito del settore domestico e di quello agricolo. I dati e le interviste qualitative raccolte sul campo confermano quindi le premesse teoriche (e normative) che avevano ricostruito la vulnerabilità in termini di mancanza di alternative percorribili e la tratta come abuso della posizione di vulnerabilità così definita.
Cultivation of some mushrooms species originating from Tunisia and exploration of their valuable metabolites
2017
Mushrooms present interests for consumption as food, as traditional medicine or in bioremediation, due to their nutritional, antioxidant, antimicrobial, therapeutic and enzymatic values. The valorisation of indigenous species of mushrooms requires well characterized collections. Although macrofungi are widespread in Tunisian forests, their diversity and ecology remain generally underexplored which hindered their exploitation. In particular, the in vitro cultivation of the mycelial form could have many advantages: (a) it offers faster growth rates which may have industrial and biotechnological benefits, and (b) will allow better resource management (longer conservation of active forms) and g…
Model to Assess the Quality of Magmatic Rocks for Reliable and Sustainable Constructions
2017
Geomechanical assessment of rocks requires knowledge of phenomena that occur under the influence of internal and external factors at a macroscopic or microscopic scale, when rocks are submitted to different actions. To elucidate the quantitative and qualitative geomechanical behavior of rocks, knowing their geological and physical–mechanical characteristics becomes an imperative. Mineralogical, petrographical and chemical analyses provided an opportunity to identify 15 types of igneous rocks (gabbro, diabases, granites, diorites, rhyolites, andesites, and basalts), divided into plutonic and volcanic rocks. In turn, these have been grouped into acidic, neutral (intermediate) and basic magmat…
Geobotanical approach to detect land-use change of a Mediterranean landscape: a case study in Central-Western Sicily
2018
A landscape is a palimpsest of the interactions between human activities and ecological dynamics. In an interdisciplinary perspective of dialogue between the ‘Two Cultures’ (Natural Sciences and Humanities), a study of a rural area has been carried out through a reading of plant ecosystems as signs of human impact. The purpose of this paper—as part of the project ‘Harvesting Memories’: Ecology and landscape archaeology of Castro/Giardinallo Valley and Mt. Barrau district (Corleone, Palermo, Sicily)—is to analyse the formative-processes of a Sicilian rural landscape and its changes in the last century. A key element in the reconstruction of the formation of the present landscape is the serie…
Study and characterization of polyphenol oxidase from eggplant (Solanum melongena L.)
2011
ABSTRACT: In this study the catecholase and cresolase activities of eggplant polyphenol oxidase (PPO) were investigated. Enzyme activity was determined by measuring the increase in absorbance using catechol as substrate and 3-methyl-2- benzothiazolinone hydrazone (MBTH) as coupled reagent. The effects of substrate specificity, heat inactivation, temperature, pH, and inhibitors were investigated to understand the enzymatic alteration of ready-to-eat preparations. Browning of vegetables was determined through a colorimeter. Decrease of lightness (L*) and increase of color difference values (ΔE*) were correlated with tissue browning. Antibrowning agents were tested on PPO under the same condit…