1,721,059 research outputs found
Kleines Plastik, grosse Wirkung?
No full textPlastik beherrscht in vielen Bereichen unseren Alltag – so auch in der Landwirtschaft. Wie viel bereits in unsere Äcker eingetragen wurde und welche Folgen dies für Mensch, Tier und Umwelt hat, ist noch nicht hinreichend bekannt. Ein Überblick von Dominika Kundel und Kolleg*innen
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
FiBL Gemüsebau-Newsletter 04/25
No full textDer Frühling hat ja in den letzten Wochen so richtig Einzug gehalten: mit warmen, sonnigen Tagen, aber doch vielerorts noch Bodenfrost durch die Nacht! Wir melden uns in dieser April-Ausgabe des Newsletters mit neuen Themen aus dem Biogemüsebau. Dieses Mal stellen wir die aktualisierten Pflanzenschutzempfehlungen für den Biogemüsebau vor. Das Merkblatt umfasst detaillierte Informationen über die wichtigsten Schaderreger und Pflanzenkrankheiten, deren Merkmale sowie gezielte Massnahmen vor und nach der Aussaat und bei Befall. Die Ausgabe 2025 enthält umfassende Strategien für neunzehn Kulturgruppen, darunter Tomaten, Lauch, Karotten und erstmals auch Basilikum. Weitere Themen sind:
• Einsatz von Kulturschutznetzen
• Falsches Saatbett
• Aktuelles zum Jordanviru
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
The quality of organic market data: providing data that is both fit for use and convenient
No full textMembers of the organic supply chain need high-quality data to make correct investment decisions, but data with sufficient depth and quality are not widely available in Europe. The quality of available data is a key concern for both data collectors and data users. The aim of this study is to identify whether the commonly used quality attributes (accuracy, coherence, comparability, timeliness, punctuality, accessibility, relevance), which have been developed from the perspective of data collectors, are also appropriate from the perspective of end users of organic market data. A further aim is to assess whether the data quality needs of end users are being met by the existing data. The results of two surveys carried out in Europe, one of data collectors and one of end users, are presented. Sales data at retail level (values and volumes) are used as an illustrative example and the perceptions of end users are compared with the reported data collection approaches, quality checks and availability of data. Correlation analysis and principal component analysis were used to investigate the relationship between users’ perceptions of the data quality attributes and their overall perceptions of
data quality. The findings suggest that data quality checks do help to improve the quality of data as perceived by end users but that people will use whatever data they can get, even if it has poor quality. This could have potentially negative consequences, such as a lack of confidence in the organic market, if important decisions are based on poor quality data. The analysis also suggests that the commonly used attributes represent two dimensions of data quality: ‘fitness for use’ which encompasses accuracy, relevance, comparability and punctuality; and ‘convenience’, which encompasses affordability, comparability, timeliness and accessibility. The attribute of comparability belongs to both dimensions as it contributes to both fitness for use and convenience. Data collectors wishing to improve the quality of their data should focus on enhancing fitness for use first and then on the convenience of their data for users
Zellfusion in der Biogemüsezüchtung
Full text linkGrundsätzlich dürfen auf Bio Suisse-Betrieben keine Gemüsesorten aus Zellfusionszüchtung angebaut werden. Doch gilt für Brokkoli, Blumenkohl, Weisskohl, Wirz und Chicorée eine Ausnahme
Liste des intrants 2023 pour l'agriculture biologique en Suisse
No full textLa liste des intrants contient tous les produits phytosanitaires, les engrais, les substrats du commerce, les produits de lutte contre les mouches des étables, les agents d'ensilage, les aliments minéraux et complémentaires, les produits pour la désinfection des stabulations et les produits contre les maladies des abeilles autorisés pour l'agriculture biologique. Cette liste est contraignante pour les producteurs de Bio Suisse et Demeter. Sur les fermes Bio Suisse, seuls les produits mentionnés sont autorisés. Les exceptions sont décrites séparément dans les introductions aux différents chapitres. Le numéro d'autorisation doit désormais être noté dans les enregistrements phytosanitaires pour tous les produits. Pour simplifier cela, ces numéros sont indiqués dans la liste
Vorsicht bei Sortenwahl
Full text linkGemüse aus Zellfusion darf nicht angebaut werden. Nun gibt es Petersilie aus dieser Züchtung
- …
