1,720,961 research outputs found
Oribatid mite (Acari: Oribatida) communities of urban brownfields in Tallinn, Estonia, and their potential as bioindicators of wasteland successional stage
No full textVacht, Piret, Niglas, Helin, Kuu, Annely, Koff, Tiiu, Kutti, Sander, Raamets, Jane (2019): Oribatid mite (Acari: Oribatida) communities of urban brownfields in Tallinn, Estonia, and their potential as bioindicators of wasteland successional stage. Acarologia 59 (1): 26-32, DOI: 10.24349/acarologia/2019431
Indoor Air Microbiological Quality in Reed-Bale and Straw-Bale Houses in Estonia. Sise\uf5hu mikrobioloogiline kvaliteet Eesti roo- ja p\uf5hupakist elamutes
No full textEffects of Agrotechnological techniques on soil fauna groups in various age Blueberry plantations
Full text linkMagistritöö
Aianduse õppekavalMuld vastutab nii kliima regulatsiooni, veeringluse, reostuskontrolli ja varude säilitamise
eest.Samuti on muld elukeskkonnaks mullafaunale, kes osaleb nii mullas toimuvas aine –
ja energiavahetuses kui ka lagunemisprotsessides
Käesoleva magistritöö eesmärgiks oli välja selgitada pinnasepüüniste ja mullaproovide
abil, kas agrotehnilised võtted omavad mõju mullafauna gruppide esinemisele eri
vanuselistes mustikaistandikes.
Töö tulemustest selgub, et kõige arvukam on mullafauna vanas, 2003. aastal rajatud
mustikaistandikus. Uuel alal (2017. aastal rajatud mustikaistandikus), kus kasutatakse
erinevaid agrotehnilisi võtteid (multśimine, kastmissüsteemid) olid arvukusnäitajad pea
poole madalamad. Töö tulemustest selgus ka, et mikrovihmutamine omab mõju
mullafauna gruppidele. Alal, kus kasutati mikrovihmutamist, puudusid 2018.aasta juunis
nälkjad, sarnastiivalised (Homoptera), lehetäilised (Aphidoidea), teod (Gastropoda) ja
augustis ka lutikalased (Heteroptera)). Lisaks agrotehniliste võtete kasutamisele tuleb
arvesse võtta ka istandike vanust. Vanal alal on kooslus koos eksisteerinud pikemat aega
ja seega ka stabiilsem. Kindlamate järelduste tegemiseks on soovitav korrata läbiviidud
katseid rohkemate paralleelide arvu ja kontrollalade kaasamisega.Soil is responsible for climate regulation, water circulation, pollution control and stock
conservation. Soil is also a living environment for soil fauna, which participates in both
soil and energy exchange and degradation processes.
The aim of this thesis was to find out, using soil traps and soil samples, whether
agrotechnological techniques have an impact on the occurrence of soil fauna groups in
blueberry stands of different ages.
The results of the work presented that the most abundant is soil fauna in the old blueberry
plantation, which was founded in 2003. In the new area (a plantation, which was founded
in 2017), were different agrotechnological techniques (mulching, irrigation systems) are
used, the abundance was almost half from the abundance of old plantation. The results
also presented that micro-sprinkling has an impact on soil fauna groups. In the area where
micro-sprinkling was used, in June 2018 there were no species of slugs, snails, homoptera,
aphids found. In August there were no animals from genus Heteroptera found. In addition
to the use of agrotechnological techniques, the age of plantations must also be taken into
consideration. In the old area, the community has co-existed for a long time and thus more
stable. In order to draw more firm conclusions, it is advisable to repeat the experiments
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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