1,720,970 research outputs found
Circular economy and food waste in supply chains: a literature review
Full text linkThis paper aims to analyse how circular economy (CE) is implemented in the context of food supply chains (SCs) and understand how supply chain management (SCM) can support the transition towards a CE of food waste (FW). Based on a Systematic Literature Review (SLR) and Citation Network Analysis (CNA) of 333 papers, the focus of the study is located at the intersection of three areas, i.e. FW, CE and SCM. We explored how these concepts and fields of research relate to each other and identified research trajectories. The analysis and the synthesis of the reviewed papers allow for identifying research areas and highlighting a lack of a holistic discussion of FW, CE and SCM, which appear weakly related to each other in the existing literature, even if they are essential to the development of circular SCs in the food industry. A research agenda is drawn to drive future research endeavours
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
Alstroemeria: GA3 per la programmazione della fioritura
No full textAllo scopo di valutare l’influenza del trattamento con GA3 sulla fioritura di Alstroemeria, una ricerca è stata condotta in serra riscaldata in ferro e PE (set point 10 °C) su piante ottenute da rizomi vernalizzati. L’impianto è avvenuto nel mese di novembre, alla densità di 3 piante al m2 ed il protocollo sperimentale ha previsto il confronto tra 2 varietà, Napoli e Monica, e 2 trattamenti ormonali, somministrazione per via radicale di GA3 rispetto ad un testimone non trattato. Il trattamento con GA3 è stato realizzato alla concentrazione di 20 ppm, con un volume di 500 ml pianta-1 per intervento, con cadenza quindicinale da fine novembre a fine luglio (totale 16 applicazioni). Le raccolte sono iniziate nella terza settimana di marzo, senza differenze tra le varietà ed i trattamenti a confronto. La durata del periodo di raccolta è stata di 115 giorni nella media delle varietà ed è stata protratta di oltre 8 giorni dal trattamento radicale con GA3. La produzione di steli fiorali è stata di 40.6 steli pianta-1, senza differenze tra di Napoli e Monica, mentre il numero di steli ciechi è stato maggiore in Monica. Il numero di steli fiorali è aumentato per effetto del trattamento con GA3 (+36%). La qualità degli steli recisi è stata migliore in Napoli, con valori più elevati di altezza (66 vs 50 cm in Monica), diametro (4.5 vs 2.8 mm) e numero di fiori per infiorescenza (14 vs 10). Il trattamento con GA3 ha migliorato la qualità commerciale degli steli recisi solo in Napoli
Prolonged air leak after robotic lung resection: a narrative review
Full text linkBackground and Objective: Prolonged air leak (PAL) following lung resection is related to an increase in morbidity and both direct and indirect costs. In recent years, robotic-assisted thoracic surgery (RATS) has proved to be a safe technique with comparable perioperative outcomes of video-assisted thoracic surgery (VATS), optimal oncological results, and potential advantages in case of sublobar resection. We here focus on the incidence and clinical impact of PAL in the field of robotic surgery and discuss the therapeutic strategies currently available. Methods: We conducted a search on PubMed/MEDLINE and Scopus database from inception until May 27th 2022 to select the relevant literature published in English exploring the occurrence of PAL following Key Content and Findings: The implementation of robotic surgery led to a significant reduction in PAL occurrence after pulmonary resection compared to open thoracotomy, while there is still no clear advantage with respect to VATS. However, the enhanced dexterity and improved visualization of the robot seem to particularly valuable in case of sublobar lung resection, especially complex ones. Accurate selection of patients based on the presence of risk factors allows the implementation of intraoperative measures in order to reduce the occurrence of PAL. Conclusions: Robotic lung resection is a safe technique, advantageous compared to traditional open thoracotomy in terms of PAL occurrence reduction and it is a valid alternative to manual VATS. Moreover, with the extension of indications for sublobar resection in the treatment of early stage lung cancer, RATS may prove to be the technique of choice thanks to its intrinsic advantages
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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