1,720,973 research outputs found
Consumer survey: Agroecological products
No full textThis survey is part of a scientific research project aimed at examining the psychological, economic, and behavioral factors influencing Tunisian consumers' preferences, attitudes, and willingness to pay for agroecological products
Enquête consommateur: produits agroécologiques
No full textCette enquête s’inscrit dans le cadre d’un projet de recherche scientifique visant à examiner les facteurs psychologiques, économiques et comportementaux influençant les préférences, les attitudes et la disposition à payer des consommateurs tunisiens pour les produits agroécologiques
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
CGIAR Innovation Packages and Scaling Readiness (IPSR) for the Protected Designation of Origin (Appellation d'Origine Contrôlée – AOC) of olive oil Innovation
No full textThe report presents in detail the different steps during the AOC IPSR workshop including the results like the six identified solutions to go to scale with the AOC and their innovation readiness and use level
Economic valuation of ecosystem services
No full textThis presentation introduces the concept and classification of ecosystem services and presents the theoretical foundation of valuation through the Total Economic Value (TEV) framework. It reviews key valuation methodologies, including non-demand based approaches, revealed and stated preference methods, and benefit transfer techniques, and outlines the main steps involved in conducting ecosystem service valuations. The session also discusses decision support tools used to integrate valuation results into policy and planning, and concludes by highlighting the key challenges and limitations associated with ecosystem service valuation
Olive Agrosilvopastoral Systems in Tunisia: Overview, Evaluation, and Valuation Methods and Tools
No full textAgroforestry, the deliberate integration of trees and shrubs into agricultural systems, is both a traditional practice and a multifunctional land-use approach that provides ecological, economic, and social benefits. In the Mediterranean Basin, these systems have developed over centuries in response to water scarcity, fragile soils, variable topography, and climatic variability, creating diverse land-use configurations that optimize resource efficiency and sustain agricultural productivity. Olive-based agrosilvopastoral systems play a central role in Mediterranean landscapes by improving soil structure, reducing erosion, and supporting diversified production through integration with crops and livestock. The olive tree, a historically and culturally significant perennial crop, underpins rural livelihoods, ecosystem services, and climate regulation in countries such as Tunisia. This guideline shows the methods and tools to evaluate Olive Agrosilvopastoral Systems in Tunisia. Ensuring the sustainability of these systems requires integrated management that combines ecological processes, traditional knowledge, and socio-economic considerations to maintain productivity while enhancing ecosystem functions
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Economic Valuation of Ecosystem Services
No full textEcosystem services include tangible goods such as food, water, timber, and fuel, as well as less visible but equally vital functions such as climate regulation, nutrient cycling, water purification, pollination, and cultural and spiritual enrichment. Despite their critical role in sustaining life and economies, many ecosystem services are not captured by market systems, resulting in their systematic undervaluation in land-use decisions, public investments, and economic planning. The economic valuation of ecosystem services seeks to address this imbalance by assigning monetary values to the benefits that ecosystems provide. This process makes the invisible visible, enabling environmental costs and benefits to be systematically integrated into national accounting, development planning, and environmental policy. In doing so, valuation provides a basis for revisiting and fine-tuning fiscal policies, such as taxes, subsidies, quotas and incentive schemes, thus encouraging more efficient and equitable resource use. Policymakers are increasingly turning to valuation and accounting of ecosystem services for improving cost-benefit analysis and policy appraisal. Such information helps guide decisions regarding the appropriate level of investment in natural infrastructure and supports the comparison of different land-use strategies or policy proposals. In this sense, ecosystem service valuation is fundamental to determining how much investment is required to sustainably manage landscapes and secure long-term ecosystem functionality. In the context of the Multifunctional Landscapes (MFL) Program, valuation is a central tool for guiding transitions toward more sustainable, inclusive, and resilient land-use systems. Landscapes in Tunisia are inherently multifunctional and dynamic, shaped by interactions among ecological processes, land users, and institutional frameworks. Recognizing and quantifying the full spectrum of ecosystem services at the landscape scale is essential to understanding how ecological, economic, and social functions are interlinked, and how they can be managed to generate multiple co-benefits for both people and nature. Within this context, ecosystem service valuation under Area of Work 3 (AoW3) “Markets and Business Models” goes beyond technical measurement. It is a strategic and participatory process that supports evidence-based policy design, empowers stakeholders, and catalyzes long-term stewardship of landscapes
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