1,720,971 research outputs found
Agroforstsysteme: sorgfältige Pflege in den ersten Jahren
Full text linkIn Agroforstsystemen sind die ersten Jahre nach der Anpflanzung die heikelsten. Daher gilt es, alle notwendigen Massnahmen zu ergreifen, um einen guten Start und das Erreichen der langfristigen Ziele sicherzustellen
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
Vers des systèmes agricoles innovants et durables en Suisse romande
Full text linkDe nombreux domaines liés à l’agriculture s’inscrivent dans une démarche similaire de transition tournée vers l’agroécologie et la création d’un système alimentaire durable. L’identification de leurs dénominateurs communs doit permettre de mieux les accompagner
Frederick H. Varley's self-portraits unmasked by his autobiographical writings : a reflection of the effects of war, religious/spiritual influences and communion with nature
Full text linkThe objective of this thesis is to support Frederick H. Varley's self-portraits with his autobiographical writings thereby creating a dialogue which closely reflects his feelings and intentions at the time he painted these portraits. In Chapter I, Varley's Self-Portrait (1919) and Self-Portrait, Days of 1943 (1945) will be discussed within the context of his experience as a war artist in the First World War and his pre-occupation with the Second World War. In Chapter II, I will address the spiritual in Varley's art and specifically how the influence of Albrecht Durer contributed to its expression in his self-representation of Liberation (1936/1937). In Chapter III, Varley's attachment to nature and the landscape of Lynn Valley, British Columbia will be the focus of my discussion of Mirror of Thought (1943). The criteria developed by Philippe Lejeune for his autobiographical pact, Richard Brilliant's study on portraiture, and Ernst Van Alphen's examination of portraiture within new conceptions of subjectivity will be important sources in this effort
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
Prendre soin de son système agroforestier les premières années
Full text linkDans les systèmes agroforestiers, les premières années après la plantation sont les plus délicates. Dès lors, il s’agit de prendre toutes les mesures nécessaires pour assurer un bon départ
The perception of ecosystem services in the wooded pastures of the Swiss Franches-Montagnes : an assessment using public participation GIS
No full textAgroforestry has long proved itself to provide many ecosystem services, ranging from provision of biodiversity to climate mitigation. In Switzerland, the region of Les Franches-Montagnes is famous for its large areas of wooded pastures, which compose the typical mosaic structure of the landscape. Integrated management plans and typologies of the wooded pastures have been developed to better understand and manage these silvopastoral systems. However, few studies have considered their benefits to the local population and assessed their role in the landscape as an ecosystem services provider. This study aims to show how the people of the region perceive ecosystem services provision in their surrounding landscape and how the latter contributes to their well-being. To do so, a survey using public participation GIS developed for the AGFORWARD project, was answered by the inhabitants of Muriaux, one of the 13 municipalities of the district of Les Franches-Montagnes. In this survey, they were asked to map different ecosystem services indicators on web-based maps of the region. Their answers were analyzed and the relationship between the ecosystem services indicators and land cover types was assessed. The results show that the diversified landscape of Les Frances-Montagnes provides many ecosystems services. However, the wooded pastures do not seem to hold more importance than other elements of the landscape in the provision of the latter. Answers to additional question of the survey suggest that the contribution of the landscape to personal well- being is mainly based on people-landscape relationships, such as tranquility and space and on social interaction between the inhabitants. Because this study only assesses a small proportion of the population of the region, it can be regarded as an exploratory work on the perception of ecosystem services in the Franches-Montagnes.M-A
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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