1,721,016 research outputs found
sj-docx-1-trr-10.1177_03611981221149431 – Supplemental material for Strategic Multi-Echelon and Cross-Modal CO2 Emissions Calculation in Parcel Distribution Networks: First Step Toward a Common Language
No full textSupplemental material, sj-docx-1-trr-10.1177_03611981221149431 for Strategic Multi-Echelon and Cross-Modal CO2 Emissions Calculation in Parcel Distribution Networks: First Step Toward a Common Language by Arevalo-Ascanio Rafael, Gevaers Roel and Dewulf Wouter in Transportation Research Record</p
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
Unlocking the benefits of pick-up points for sustainable E-commerce distribution in urban areas
No full textAbstract: E-commerce has been increasing dramatically during the last decade. This disruption in shopping behaviour has brought about changes to the way freight moves in cities. For example, in the US, in 2009, one out of three freight trips had a household as a final destination. Within only 10 years, by 2019, the number of household deliveries had tripled and now three out of five freight trips are destined to households. For the future, this trend is expected to continue. Despite the obvious convenience of home deliveries, the last mile of e-commerce is the most expensive leg of the supply chain. Additionally, home deliveries cause a number of negative impacts to residential areas such as street blocking because of double parking, an increased risk of accidents, as well as other negative externalities linked to freight vehicles (e.g. pollution, congestion, noise). Pick-up points are therefore widely regarded as a solution for increasing the efficiency and reducing the traffic of freight vehicles in residential areas. If doorstep deliveries get consolidated in pick-up points, household freights trips become less frequent. Municipalities and companies are recognising this potential and start focusing their attention on densifying pick-up point networks. From their perspective, those pick-up point networks constitute an instrument to mitigate the negative impacts of e-commerce in urban areas. Estimations suggest that in Europe so far there are about 200,000 pick-up points, while in Belgium this number is getting close to 7,000. Simply densifying the pick-up points may however lead to unintended consequences: the positive side is that a high density of pick-up points provides more convenience to the customer while at the same time discouraging the use of individual motorized trips to collect packages. However, if there are too many pick-up points, the consolidation effect gets lost commercial vehicles will still need to drive in residential areas causing high operational and external costs. In this dissertation, the conditions under which pick-up points can be beneficial for society were disentangled. A cost model was developed to understand the effects on operational and external costs resulting from location and density patterns of pick-up points. Our results show that the total costs (external and operational) are almost insensitive to the density of the pick-up point network. However, it appears that the same costs decrease proportionately to an increase in the flow of parcels through the pick-up point network. This suggests that a wider acceptance for off-home deliveries will further unlock the benefits of pick-up points. To reach a larger audience, not only geographical proximity between home and pick-up points should be considered, but also other service level attributes
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
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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