1,720,974 research outputs found
Palynology for Sustainability: A Classical and Versatile Tool for New Challenges
No full textPalynology is a bridge between different research fields. This centenary discipline studying fossils and modern pollen and spores represents a landmark in multidisciplinary studies on both past and current environmental issues. Palynology plays an important role not only in ‘basic research’ on botanical taxonomy, phylogeny, reproductive biology, and phenology but also in ‘applied research’ focused on the measurement of environmental variables, including the quality of food and air. Aerobiology is one of the main fields, together with palaeoecology, which demonstrates the great power of pollen as a methodological approach to add details and information to other methods. In addition, paleoenvironmental studies are based on the analysis of pollen from sediments and archaeological layers, which provides a long-term perspective to understand ecosystem responses to different human and climate triggers. In this sense, recent palynological research has repeatedly demonstrated that past cultures adopted cultural choices to tackle environmental and climate changes to ensure social resilience by using multi-functional land uses to exploit nature without compromising the environment.
Starting from the MedPalynoS-2021 meeting, this issue aims to collect groundbreaking papers using palynology as a cornerstone for their research, including some papers awarded during the conference. Pollen, non-pollen palynomorphs, and sedimentary charcoal are excellent bioindicators for detecting human impact and landscape development. For this reason, interdisciplinary bio-geo-archaeo investigations on on-site/off-site integration and Holocene contexts and palynology in studies on phylogeny, reproductive strategy, melissopalynology, and forensic sciences are welcomed.
We encourage submissions of research articles from the palynological community on all aspects of the discipline, especially reporting the latest updates to face future challenges
BRAIN id: NFV26 – pollen dataset
No full textPalù di Livenza - PaluON1 (PN, N Italy).
Dataset including pollen counts from sediment samples collected from a trench excavated at the Neolithic pile-dwelling archaeological site of Palù di Livenza (Pordenone, N Italy; 46°01'19.9" N 12°28'56.8" E, 33 m asl; site chronology: c. 4400-3650 BC). The dataset was created as part of the National Biodiversity Future Center (NBFC, Palermo, Italy). The site is included in the BRAIN database (https://brainplants.successoterra.net/; site id: NFV26)
Supplemental material of the paper "Modern analogues for understanding pollen-vegetation dynamics in a Mediterranean mosaic landscape (Balearic Islands, Western Mediterranean)"
No full textThis supplementary material includes a dataset including information of environmental variables and sample information and an RMarkdown with the analytical codes used in the paper. This project received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie [grant agreement 895735; Olea-project); Movilidad y conectividad de las comunidades prehistóricas en el Mediterraneo occidental durante la prehistoria reciente: El caso de las Islas Baleares [PID2019-108692GB-I00], financed by the Ministry of Science, Innovation and Universities (Spanish Government). GSV also received funding from Juan de la Cierva-Incorporación [IJCI-2016-30581], Vicenç Mut program [GOIB & ESF: PD-018-2017] and José Castillejo [CAS16/00040] fellowships. GS research was also supported in part by an appointment to the United States Forest Service (USFS) Research Participation Program administered by the Oak Ridge Institute for Science and Education (ORISE) through an interagency agreement between the U.S. Department of Energy (DOE) and the U.S. Department of Agriculture (USDA). ORISE is managed by ORAU under DOE contract number DE-SC0014664. All opinions expressed in this paper are the author's and do not necessarily reflect the policies and views of USDA, DOE, or ORAU/ORISE
Transported landscape and social resilience in the Balearic Islands since Prehistory. The study-case of Santa Ponça (Mallorca, Western Mediterranean).
No full textPaisatges de l’Eivissa Preromana
No full text[cat] Aquest treball és una revisió de l'estat de la qüestió sobre les dades paleoambientals a Eivissa
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
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