1,720,968 research outputs found

    Effetti del contenuto pragmatico degli enunciati e della disponibilità, esplicita o implicita, di antecedenti alternativi sul ragionamento condizionale.

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    La ricerca valuta congiuntamente gli effetti degli antecedenti alternativi e del contenuto pragmatico degli enunciati sul ragionamento con sillogismi condizionali con l’obiettivo di accertarne la relativa incidenza. I primi sono stati forniti ai partecipanti sia implicitamente che esplicitamente, secondo due modalità inedite in letteratura. Per la valutazione del contenuto si sono invece scelti sette diversi enunciati tematici. I risultati hanno mostrato che gli antecedenti alternativi, sia impliciti sia espliciti, hanno esercitato un consistente impatto sul ragionamento condizionale mentre quello riconducibile al contenuto si è rivelato più debole

    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

    A process-based approach to collect food information to satisfy consumer needs through a voluntary traceability information system, an Organic Olive Oil case study

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    In the last years, several food hazards have increased consumer awareness about food product. Traceability is widely recognized as able to guarantee product quality and consumer safety. However, consumers appear dissatisfy about the product information shown on label. Voluntary traceability could be used to collect product information during its lifecycle starting from farming phase. This paper proposes a research case study to detect, following a process-based approach, Organic Olive Oil information, to create an information system for voluntary traceability able to satisfy consumer information needs. Researcher, organic certification control body, farmer and olive oil mill take part to case study. Through interviews and using a process-based approach, Organic Olive Farming and Organic Olive Oil Transformation Processes were modelled. For each process, actors and activities were identified detecting data, format and collection mode

    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

    An Integrative Conceptual Framework of Food Certifications: Systematic Review, Research Agenda, and Macromarketing Implications

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    Food certifications guarantee food quality and reduce information asymmetry regarding food between consumers and producers. There are numerous certifications that facilitate global food systems. While scholars have addressed this issue from several viewpoints, a systematic synchronization of the research in international food certification studies is lacking. The purpose of this study is to explore the field of food certifications. This includes identifying certification definitions, related categories, the main purposes and topics of existing studies in this field. This study uses a systematic literature review. It proposes an integrative conceptual framework, that summarizes the main findings of the study. Additionally, new research routes, as well as both theoretical and macromarketing implications are discussed. This study provides a comprehensive understanding of the international field of food certification, giving researchers, consumers, and food companies a guide to understand the complexity of the global food certification and the related macromarketing effects

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    Agriculture 4.0 as Enabler of Sustainable Agri-Food: A Proposed Taxonomy

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    Global population growth, climate change, and food safety are some of the challenges that the agri-food sector is current facing. Addressing these in a sustainable way requires the adoption of sustainable-oriented innovations capable of developing new knowledge and reshaping production methods and business models. Digitalization and technological evolution in the agri-food sector, culminating within Agriculture 4.0 (A4.0), represent the latest revolution, as testified by the extant body of knowledge. The lack of a systematic model to map the body of knowledge in A4.0 and how it addresses the agri-food sustainability challenges represents the input of our review. We propose a systematic literature review to discover the research routes in A4.0, increasing the understanding of this paradigm as agri-food sustainability enabler. A taxonomy, composed of 566 terms grouped in seven categories representative of the extant research routes, is proposed: the names assumed by agri-food digitalization process, the main aims and issues of A4.0, the features of the agricultural sector, the parameters monitorable and calculable through A4.0, data, and technologies. It emerged that A4.0 absolve the role of enabler in sustainability agri-food providing to the company a set of data and technological sustainable oriented innovations able to solve, according to an interdisciplinary approach, environmental, social, and economic challenges. The findings identify research gaps and theoretical and practical implications for a wide range of stakeholders, such as engineering managers, agri-food companies, researchers, or companies involved in the web content analysis. Limitations and future research route complete the study
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