1,720,983 research outputs found

    Direct access to markets by farmers and the role of traders: insights from Kenyan and Tanzanian leafy vegetables markets

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    The research literature shows that agriculture has potential for development, job creation and structural change if agricultural value chains are considered in their entirety: from inputs, to farm, through processing, until marketing. This is particularly important in the case of Africa, where agriculture contributes in a major way to GDP and employment. However, this focus on value chains does not seem to have been accompanied by attention to the diversity of actors operating along value chains. Based on an extensive literature review on access to markets by farmers and on participatory research with farmers, traders, and sectoral stakeholders of leafy vegetables value chains in Kenya and Tanzania, this study argues that the role played by traders in local fresh produce markets in Africa is poorly understood and supported. It is argued that powerful narratives about the benefits of direct access to market by farmers, which are also present in academic literature, are sometimes overoptimistic, or interpreted beyond their scope and applied regardless of the specific features of actors and produce. The study shows that the leafy vegetables trade provides self-employment for many women, and that it has positive impacts on other groups, notably farmers

    L'orientamento delle matricole tra informazione e riflessione

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    Il passaggio dalla scuola superiore all’università, oltre che occasione di apertura a nuove possibilità, può essere fonte di preoccupazione, soprattutto oggi che, in conseguenza di un quindicennio di riforme, il contesto universitario si presenta quanto mai incerto e mutevole. Per questo motivo nell’anno accademico 2007-2008, nell’ambito dell’orientamento delle matricole del Corso di laurea in formatore nelle organizzazioni, si è intrecciata l’abituale proposta informativa con dei lavori di gruppo in cui gli studenti sono stati chiamati a confrontarsi sui fattori che li hanno condotti alla scelta universitaria, sulle loro aspettative nei confronti della struttura e sulle loro aspirazioni, con l’intento di promuovere in loro una progressiva consapevolezza critica di sé nel contesto. Ne è sortito un percorso di cui il presente saggio costituisce un tentativo di sistematizzazione, al cui interno viene proposta, senza alcuna pretesa di esaustività interpretativa, una riflessione che cerca di integrare varie prospettive – diagnostico-attitudinale, caratterologico-affettiva, clinico-dinamica e maturativo-personale – e di evidenziare come per rivelarsi efficace sia necessario che l’orientamento si configuri come autenticamente esistenziale, investendo la persona nella globalità del suo porsi in rapporto con se stessa e con la comunità di cui è parte

    Educare alla pace. Percorso di formazione per insegnanti

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    L'articolo propone fondamenti pedagogici e metodologici per un progetto pluriennale di educazione alla pace per insegnanti di scuola dell'infanzia, primaria e secondaria di primo grado. Il progetto è frutto di un'esperienza di formazione già attuata in vari contesti e ora rielaborata con un più approfondito supporto teorico

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

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    We 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

    Author Index

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