1,720,994 research outputs found
Exploring the nexus between social and environmental sustainability within EU organic agriculture: a systematic literature review
Full text linkThe European Union's Farm-to-Fork Strategy and Green Deal underscore organic farming's critical role in promoting sustainability and addressing socio-economic issues, including precarious, seasonal, and undeclared labor. The EU's objective to have at least 25% of the agricultural land dedicated to organic farming by 2030 highlights the need for research into the social implications of organic practices, particularly concerning labor conditions, which remains largely unexplored. While existing literature often focuses on organic agriculture's job creation potential, the specifics of labor conditions within this sector remain insufficiently examined. Limited attention has been paid to how private certification schemes shape labour processes, or to the effects of increased preventive measures on organic farmworkers' workloads. This study conducts a systematic review of 41 articles to assess how labor issues are framed within the organic farming sector, identifying three main themes: 1. regulatory frameworks; 2. production practices; 3. farmworkers' employment conditions. These themes are contextualized within the global agri-food value chain, demonstrating how organic agriculture is embedded in a globalized industry. The findings suggest that the social role of organic agriculture is often framed as an economic opportunity for farmers and rural communities or as a means of promoting rural development and increasing revenues through job creation. However, such perspectives risk overlooking the sector's potential to improve labor conditions. The review reveals an urgent need for qualitative studies that explore the experiences of marginalized groups, including migrant and female workers, in organic farming. It advocates for future research that incorporates labor issues into policy discourse, aiming to enhance labor standards within organic certification schemes. Empirical research is therefore essential to deepening our understanding of the intersection between social and environmental sustainability, particularly in relation to the varied labor regimes present in organic agriculture. This work offers a foundational basis for future studies on the evolving relationship between organic agriculture and social sustainability in the context of the green transition
Skin decontamination procedures against potential hazards substances exposure
No full textDecontamination of unprotected skin areas is crucial to prevent excessive penetration of chemical contaminants after criminal or accidental release. A review of literature studies was performed to identify the available decontamination methods adopted to treat skin contamination after chemical, radiological and metal exposures. In this bibliographic review, an overview of the old and recent works on decontamination procedures followed in case of potential hazards substances contaminations with a comparison between these systems are provided. Almost all data from our 95 selected studies conducted in vitro and in vivo revealed that a rapid skin decontamination process is the most efficient way to reduce the risk of intoxication. The commonly-used or recommended conventional procedures are simple rinsing with water only or soapy water. However, this approach has some limitations because an easy removal by flushing may not be sufficient to decontaminate all chemical deposited on the skin, and skin absorption can be enhanced by the wash-in effect. Other liquid solutions or systems as adsorbent powders, mobilizing agents, chelation therapy are also applied as decontaminants, but till nowadays does not exist a decontamination method which can be adopted in all situations. Therefore, there is an urgent need to develop more efficient and successful decontaminating formulations
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
Structure des vanadite, chromite et ferrite monocalciques
No full textLa méthode statistique de détermination de signes relatifs (Bertaut, 1956) est appliquée à la résolution de la structure de R₂CaO₄ (R = V, Cr, Fe ; groupe Pbnm — 16/2h). La figure de coordination de R est un octaèdre, celle de Ca est composée d'un prisme droit à base triangle et d'un triangle d'atomes d'oxygène. On a dans V₂CaO₄ a = 10,66 Å, b = 9,20 Å, c = 3,01 Å.
On montre au cours de cette étude que la méthode statistique permet encore de lever des ambiguïtés de signe là où la méthode des inégalités n'est pas applicable. Une méthode de différences est décrite pour le traitement des pseudo-symétries.Lewy-Bertaut Erwin Félix, Blum P., Magnano G. Structure des vanadite, chromite et ferrite monocalciques. In: Bulletin de la Société française de Minéralogie et de Cristallographie, volume 79, 10-12, 1956. pp. 536-561
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
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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