1,720,971 research outputs found
Screening of 18 species for digestate phytodepuration.
No full textThis experiment assesses the aptitude of 18 species
in treating the digestate liquid fraction (DLF) in a floating
wetland treatment system. The pilot system was created in NE
Italy in 2010 and consists of a surface-flow system with 180
floating elements (Tech-IA®) vegetated with ten halophytes
and eight other wetland species. The species were transplanted
in July 2011 in basins filled with different proportions of DLF/
water (DLF/w); periodic increasing of the DLF/w ratio was
imposed after transplanting, reaching the worst conditions for
plants in summer 2012 (highest EC value 7.3 mS cm/L and
NH4-N content 225 mg/L). It emerged that only Cynodon
dactylon, Typha latifolia, Elytrigia atherica, Halimione
portulacoides, Salicornia fruticosa, Artemisia caerulescens,
Spartina maritima and Puccinellia palustris were able to
survive under the system conditions. Halophytes showed
higher dry matter production than other plants. The best root
development (up to 40-cm depth) was recorded for
Calamagrostis epigejos, Phragmites australis, T. latifolia
and Juncus maritimus. The highest nitrogen (10–15 g/m2)
and phosphorus (1–4 g/m2 ) uptakes were obtained with
P. palustris, Iris pseudacorus and Aster tripolium. In conclusion,
two halophytes, P. palustris and E. atherica, present the
highest potential to be used to treat DLF in floating wetlands
A new functional approach to Class II treatment with clear aligners in growing patients
No full textIn this edition of the Aligner Corner, the authors present two case reports using the F22* aligner system with a
mandibular-advancement feature referred to as the “advancement block.” This is a protuberance of plastic placed behind the upper incisors that causes the patient to posture forward, thus imparting functional-appliance
forces to the aligners. In the first case, a 10-year-old male wore the advancement aligner for 10 months and achieved a correction to Class I. The second phase, which occurred two years later, consisted of six months
of treatment with aligners and a fixed sectional appliance using lingual buttons on the lower left lateral incisor, canine, and first premolar. In the second case, the female patient had already undergone 12 months of rapid palatal expansion at age 6, during the mixed dentition. Her aligner and mandibular-advancement phase commenced
at age 12 and involved nine sets of aligners, with the advancement block added only to the last tray. As in the first
case, the mandibular advancement occurred first (10 months), followed by refinement (three months), resulting in a
still-impressive 13-month treatment time. As always, there are many ways to reach the same objectives, but these authors did achieve excellent results
Skeletally anchored running-loop technique for mandibular first-molar uprighting
No full textAgenesis or loss of a lower second premolar can lead to mesial tipping of the lower first molar. This Pearl describes a molar-uprighting spring that is supported with indirect miniscrew anchorage and segmental posterior fixed appliances
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
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