1,721,054 research outputs found
The journey toward microbial photo-electrochemical biosensors: harnessing photosynthetic organisms for next-generation environmental sensing
No full textThe urgent need for cost-effective and reliable environmental monitoring systems has sparked interest in developing innovative biosensing platforms. Among these, microbial photoelectrochemical biosensors, which leverage the unique properties of photosynthetic microorganisms, have emerged as promising tools for environmental analysis. This perspective examines recent advances in microbial photoelectrochemical biosensor technology, focusing on the fundamental mechanisms of photosynthetic organisms and their integration with materials science. The current limitations in the implementation of microbial photoelectrochemical biosensors will be discussed, highlighting emerging solutions through nanomaterial integration and exploring how these biological systems can be engineered to detect environmental pollutants. Accordingly, a roadmap to transform these biological systems into practical environmental monitoring tools is presented, paving the way to unprecedented opportunities for the development of sustainable, sensitive, and targeted microbial biosensing platforms for real-world pollutant detection. To fully utilize the promise of these next-generation biosensing platforms, future research should concentrate on enhancing signal transduction and its stability over time, optimizing biointerface engineering, and encouraging interdisciplinary collaboration
La piattaforma costiera dell'alto Lazio: dalla foce del Fiume Marta a Torre Sant'Agostino.
No full text
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
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
I depositi carbonatici palustrini paleocenici della Sardegna centro-meridionale (Italia)
No full textIn the late Cretaceous-Paleocene, Sardinia experienced a long period of subaerial exposure, partially
interrupted by the marine transgression of the late Paleocene-early Eocene.
Palustrine deposits are preserved in very small and thin outcrops sparse in the central and southern part of the
island. Most of them are recognized and described for the first time.
The palustrine deposits are mainly characterized by the abundance of charophyte remains, microbialitic laminae
and envelopes and microcodium; ostracods and gastropods are also present.
The richness in microcodium and microbialites, the predominance of calcified thalli and the scarcity of fructifications
of the charophytes, the evidences of a pedogenetic evolution of the deposits are good proxies of a very
shallow water sedimentary environment.
The wide areal distribution of the outcrops suggests the presence of at least six main palustrine basins, grouped
in two main regions.
Palustrine and lacustrine deposits of the same age are well known from southern France and the Pyrenees; the
Sardinian deposits confirm the environmental and climatic uniformity of the southeastern margin of the European
paleocontinent, to which the Corso-Sardinian block was joined, in late Cretaceous-Paleocene times
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