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Gestion Dynamique de la Nature Temporaire en Carrières
Full text linkLIFE in Quarries - LIFE14 NAT/BE/00036
Gestion Dynamique de la Nature Temporaire en Carrières
Full text linkThe guide is based on the experience gained during the LiFE in Quarries project. An EU LIFE Programme funded project. Running from 2015 to 2021, it demonstrated that operational biodiversity solutions can be proposed and implemented through controlled investments benefiting nature protection as well as the private sector. The general idea of the project was to define measures favorable to biodiversity acceptable to the private operator, legally and scientifically valid. The partnership forged on this basis included the private sector, regional authorities, scientists and NGOs. The project was led by FEDIEX (Fédération des Entreprises Extractives) in partnership with the Walloon region (Department of Nature and Forests), University of Liège – Gembloux Agro-Bio Tech – Biodiversity and Landscape Unit, Natagora asbl and the Scheldt Plain Nature Park.PublishedLe guide est basé sur l’expérience acquise au cours du projet LIFE in Quarries. Le LIFE in Quarries (LIFE14 NAT/BE/000364) est un projet du programme LIFE financé par l’UE. Courant de 2015 à 2021, il a démontré que des solutions opérationnelles pour la biodiversité peuvent être proposées et mises en œuvre grâce à des investissements maîtrisés bénéficiant à la protection de la nature ainsi qu’au secteur privé. L’idée générale du projet était de définir des mesures favorables à la biodiversité acceptables pour l’opérateur privé, juridiquement et scientifiquement valables. Le partenariat noué sur cette base incluait le secteur privé, les autorités régionales, les scientifiques et les ONG. Le projet a été porté par la FEDIEX (Fédération des Entreprises Extractives) en partenariat avec la Région wallonne (Département de la Nature et des Forêts), l’Université de Liège – Gembloux Agro-Bio Tech – Cellule Biodiversité et Paysage, Natagora asbl et le Parc naturel des Plaines de l’Escaut
Dynamic Management of Temporary Nature in Quarries
Full text linkThe guide is based on the experience gained during the LiFE in Quarries project. An EU LIFE Programme funded project. Running from 2015 to 2021, it demonstrated that operational biodiversity solutions can be proposed and implemented through controlled investments benefiting nature protection as well as the private sector. The general idea of the project was to define measures favorable to biodiversity acceptable to the private operator, legally and scientifically valid. The partnership forged on this basis included the private sector, regional authorities, scientists and NGOs. The project was led by FEDIEX (Fédération des Entreprises Extractives) in partnership with the Walloon region (Department of Nature and Forests), University of Liège – Gembloux Agro-Bio Tech – Biodiversity and Landscape Unit, Natagora asbl and the Scheldt Plain Nature Park.Publishe
Contribution à l’écologie de la restauration des écosystèmes cuprifères : Analyses des relations sols-communautés végétales de deux collines de cuivre du Katanga, RDC
No full textCopper-cobalt hills in Katanga (D.R. Congo) host singular plant communities. Those
are highly endangered by mining activities. The preservation of communities requires the
relations with the edaphic factors to be well understood. The study site is composed of two
copper outcrops – Fungurume V and Kavifwafwaulu I – situated within the Tenke Fungurume
mining claim. 84 and 43 quadrats were sampled for soils and plants covers were determined.
Pedological drills descriptions completed the field work. Collected data on vegetation and
soils analyzed for granulometry, pHs, bioavailables contents in Cu, Co, Zn, Mn, Fe, K, Mg,
Ca and P were subjected to statistical analysis to determine: (1) whether or not hills are
distinct; (2) soils groups and their edaphic characteristics; (3) plant communities, their
conservatory status and the edaphic factors influencing and (4) the aggregation between
communities and soils groups. The results from this study indicate that (i) soils and
communities are distinct from one hill to the other; (ii) five and four soils groups form
continuums within the hills for the edaphic parameters; (iii) seven and five communities are
split between steppe savannas and steppes/swards and are notably determined by
bioavailables Cu, Co and Mg and (iv) Fungurume V presents a good aggregation between
soils groups and plants communities while the situation is not as clear for Kavifwafwaulu I
were communities present a pronounced overlapping. Recommendations based on soils
groups are provided for the preservation of interesting plant communities.Les collines de cuivre-cobalt du Katanga (R. D. Congo) hébergent des communautés
végétales uniques grandement menacées par l’exploitation minière. La conservation des
communautés nécessite une compréhension fine des relations entretenues avec leur
environnement édaphique. Situées dans la concession de Tenke Fungurume les clairières de
Fungurume V et de Kavifwafwaulu I, sont l’objet d’une étude détaillée sur 84 et 43 quadrats.
Des échantillons composites de sols y ont été prélevés et les recouvrements spécifiques y ont
été déterminés. Ils sont accompagnés de descriptions de sondages pédologiques. Les données
collectées et analysées pour la granulométrie, les pH, les teneurs en C organique et N total, et
en Cu, Co, Zn, Mn, Fe, K, Mg, Ca et P biodisponibles sont soumises à des analyses
statistiques afin de déterminer : (1) si les collines sont distinctes, (2) les groupes de sols et
leurs caractéristiques édaphiques, (3) les communautés végétales présentes, leur intérêt
conservatoire et les paramètres édaphiques les influençant, et (4) l’organisation des
communautés sur les différents groupes de sols. Les résultats des analyses indiquent que (i)
les sols et communautés végétales sont différents d’une colline à l’autre, (ii) cinq et quatre
groupes de sols forment des continuums pour les valeurs des paramètres édaphiques, (iii) sept
et cinq communautés sont réparties entre savanes steppiques et steppes/pelouses et sont
discriminées pour les deux collines par le Cu, le Co et le Mg et (iv) Fungurume V présente
une bonne agrégation entre groupes de sols et communautés végétales tandis que le cas de
Kavifwafwaulu I est plus nuancé, la végétation s’y interpénétrant plus. Des recommandations
basées sur les groupes de sols sont apportées pour la préservation des communautés végétales
d’intérêt
Dynamic Management of Temporary Nature in Quarries
Full text linkLIFE in Quarries - LIFE14 NAT/BE/00036
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
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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