1,721,009 research outputs found
Focal mechanism of an earthquake of Baroque Age in the `Regno delle Due Sicilie' (southern Italy)
No full textSource complexity of the 1980 southern Italian earthquake from the analysis of strong-motion S-wave polarization
No full text
Acarus siro L. (Acarina, Acaridae)'nun değişik sıcaklık ve nem ortalamalarındaki gelişmesi üzerinde incelemeler
No full textBu araştırmada 10°C ve 25°C sıcaklık ile %70 ve %90 orantılı nem kombinasyonlarında Acarus siro L. (Acarina, Acaridae ) 'nun biyolojik dönemlerin gelişme süresi, yumurta açılma oranı, cinsiyet oranı, pre-ovipozisyon süreleri ve verimliliğine ilişkin bilgiler elde edilmiştir. Ayrıca Acarus siro'nun sıcaklık sabitesi ve gelişme eşiği de belirlenmiştir. Düşük sıcaklık ve nem kombinasyonlarının A. siro'nun gelişimini geciktirdiği ve verimliliğini azalttığı, belirlenmiştir. Düşük orantılı nemlerde dişi birey oranında da düşme olmuştur. Değişik sıcaklık ve nem kombinasyonlarında yürütülen denemelerde A. siro'nun gelişimine ilişkin verilerden yapılan hesaplamalarda bu zararlının gelişme eşiği 3.75°C ve sıcaklık sabitesi de 303.625 gün-derece olarak saptanmıştır. Abstract In these experiments, conducted at 10°C and 25°C, and 70% and 90% relative humidities, the developmental periods of the immature stages; hatching ratios; sex ratios; the pre-oviposition, oviposition and post-oviposition periods; and fecundity of Acarus siro L. were ob tained. The developmental threshold, and the thermal constant of A. siro were also considered. According the results lower temperatur and relative humidity combinations prolonged the developmental periods, and reduced fecundity of Acarus siro L. The lower relative humidities reduced the female ratio. As the results of the experiments carried out different temperatures and relative humidities, the developmental threshold and the thermal constant were calculated as 3.75°C, and 303.625 days-degrees respectively
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
- …
