1,720,953 research outputs found
Circular Pathways in Construction: Environmental Life Cycle Assessment of Bio-based Fiber Reinforced Building Component
Full text linkData availability statement:
The original contributions presented in the study are included in the article/Supplementary material, further inquiries can be directed to the corresponding authors.Supplementary material:
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/frsus.2025.1716779/full#supplementary-materialGenerative AI statement:
The author(s) declared that generative AI was not used in the creation of this manuscript.The construction sector is one of the most significant contributors to global environmental impacts, particularly due to its high material and energy demands. Developing sustainable alternatives to conventional building materials is, therefore, a critical step toward reducing the environmental impact of this sector. The integration of recycled bio-based fibers with traditional reinforcement is proposed as an alternative solution to mitigate environmental impacts. This study evaluated the environmental benefits of replacing traditional steel reinforcement with recycled bio-based hemp and bamboo fibers in a reinforced concrete beam using the Life Cycle Assessment (LCA) methodology, excluding the evaluation of the mechanical performance of the replacement materials from its scope. The results show that, overall, replacing steel has significant benefits for several impact categories even at low replacement rates for the reinforced concrete beam. For instance, in terms of global warming potential (GW), the emissions decrease from 362 kg CO2 eq for beam for the steel-reinforced concrete to 324 kg CO2 eq for beam for 30% steel replacement with recycled hemp and 312 kg CO2 eq for beam for 30% steel replacement with recycled bamboo fiber. Therefore, the GW emissions decrease by around 14% for the reinforced concrete beam. This study contributes to the scientific literature by providing concrete data on the benefits of using bio-based recycled fibers even at low replacement rates. This research suggests that utilizing recycled bio-based materials could be a practical approach to enhancing the sustainability of construction materials from a circular economy perspective.The author(s) declared that financial support was received for this work and/or its publication. This research received no external funding
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
A Systematic Review on Life Cycle Assessment of Prefabricated Buildings
Full text linkData availability:
All data generated or analysed during this study are included in this published article.Supplementary materials are available online at: https://www.sciencedirect.com/science/article/pii/S2772737825000380?via%3Dihub#sec0032 .The construction sector has a significant impact on the environment, highlighting the need for sustainable building practices to decrease the emissions and propose alternative construction solutions. In this framework, prefabricated construction methods offer a promising solution, providing benefits such as reduced material waste, improved energy efficiency, and alignment with net-zero principles. The Life Cycle Assessment (LCA) approach represents a key tool for evaluating the environmental performance of buildings throughout their entire life cycle, enabling a direct comparison between prefabricated and traditional construction methods. This systematic review examines the application of LCA methodologies to assess the environmental impacts of modular and prefabricated buildings. By analysing recent peer-reviewed articles, this study investigates the use of key LCA elements, including software, databases, System Boundaries, Functional Unit, and environmental impact categories. The impact categories analysis indicates that, in terms of global warming potential, 1 m² of structure impacts an average of 325, 327, and 389 kg CO₂ eq for steel, wood, and concrete, respectively, for phases A and C. Furthermore, this review highlights and discusses the main limitations and the research gaps of the current studies of LCA methodology applied to modular construction, emphasising the need to intervene on five potential improvement areas: (i) methodological development, (ii) policy implications, (iii) stakeholder engagement and awareness, (iv) digital tools and innovation and (v) Circular Economy (CE) integration.This research received no external funding
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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