1,721,052 research outputs found
Lamentowicz, M., Marcisz, K., Guzowski, P., Gałka, M., Diaconu, A.C., Kołaczek, P. 2020. How Joannites’ economy eradicated primeval forest and created anthroecosystems in medieval Central Europe. Sci Rep 10:18775.
No full textSite Description. Pawski Ług is an ombrotrophic Sphagnum-dominated peatland located in western Poland in the Łagów Lakeland (52°19′45″N, 15°16′30″E). The area is covered by morainic hills and a number of small glacial lakes. The peatland covers an area of 3.67 ha, and its vegetation is currently dominated by Sphagnum fallax, S. angustifolium, and other species typical for raised bogs: Drosera rotundifolia, Oxycoccus palustris, Eriophorum vaginatum, and Ledum palustre. The peatland is surrounded by the mixed forest mainly composed of Quercus, Fagus sylvatica, and Pinus sylvestris. Pawski Ług is protected as a nature reserve since 1970.
The proxies analyses are:
- Pollen
- Plant macros
- Testate amoebae
- Macrocharcoal
- Microcharcoa
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
Seasonal patterns of testate amoeba diversity, community structure and species-environment relationships in four Sphagnum-dominated peatlands along a 1300 m altitudinal gradient in Switzerland
No full textAltitudinal gradients are useful to study the potential effects of climate change on ecosystems. Historically, studies on elevation gradients have primarily focused on macro-organisms and ecosystem processes, while
microorganisms have been mostly ignored despite their ubiquity and functional importance. We studied the temporal (about every two months from June 2008 until May 2009) variation of testate amoeba
communities in four Sphagnum-dominated peatlands along a 1300 m elevation gradient in the Swiss
Mountains (580-1880m) in relation to water table depth and hydrochemistry with special focus on
dissolved organic carbon (DOC), a useful proxy for changes in C-cycling in peatlands.
The lowest site had significantly (P < 0.01) lowest testate amoeba density, species richness. The highest site
had highest testate amoeba density (38 ind.mg-1 28 dry mass of Sphagnum). Seasonal fluctuations in testate
amoeba species richness and diversity were not consistent among sites but density tended to peak in spring
at all sites, autumn in the three highest sites and mid-winter in the upper two sites. In a redundancy
analysis (RDA) community structure was more strongly correlated to altitude (33.8% of variance explained
in living community) than to soil hydrological and hydro-chemical variables (together explaining 16.2% of
variance). In a partial RDA with altitude used as covariable, the four sites were separated by DOP, DOC,
DON, pH and average depth to water table.
The abundance of high trophic level testate amoeba species (shell-aperture over their body size >0.20; i.e.
primarily predators of protists and micro-metazoa) as well as the community size structure increased from
lowest to highest elevation (respectively by 3.7x and 6x) and followed the seasonal patterns of total
density, while DOC, DON, and DOC/DON decreased with elevation.
These results agree with previously reported alteration of peatland microbial food chains in response to
experimental warming, suggesting that climate-induced changes in microbial community structure (here a
shortening of microbial food chains) represent a mechanism controlling the carbon balance of peatlands
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
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Lamentowicz, M., Marcisz, K., Guzowski, P., Gałka, M., Diaconu, A.C., Kołaczek, P. 2020. How Joannites’ economy eradicated primeval forest and created anthroecosystems in medieval Central Europe. Sci Rep 10:18775.
No full textSite Description. Pawski Ług is an ombrotrophic Sphagnum-dominated peatland located in western Poland in the Łagów Lakeland (52°19′45″N, 15°16′30″E). The area is covered by morainic hills and a number of small glacial lakes. The peatland covers an area of 3.67 ha, and its vegetation is currently dominated by Sphagnum fallax, S. angustifolium, and other species typical for raised bogs: Drosera rotundifolia, Oxycoccus palustris, Eriophorum vaginatum, and Ledum palustre. The peatland is surrounded by the mixed forest mainly composed of Quercus, Fagus sylvatica, and Pinus sylvestris. Pawski Ług is protected as a nature reserve since 1970.
The proxies analyses are:
- Pollen
- Plant macros
- Testate amoebae
- Macrocharcoal
- Microcharcoa
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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