1,844,264 research outputs found
G2 & G1 plants species of SW Colorado
No full textPresented at the 16th symposium held on September 27, 2019 in Grand Junction, Colorado.2019 G2 species of SW Colorado -- 2019 G1 species of SW Colorado
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
No full text“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
No full textWe 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
SW-FCCS analysis of CENP-S and CENP-X.
No full text(a): ACF curves of EGFP-(s)-CENP-S (green) and mCherry-(s)-CENP-X (red), and CCF curves (blue, purple) in the nucleoplasm of interphase HEK293 cells. The data show high cross-correlation between CENP-S and CENP-X, indicating an interaction between CENP-S and CENP-X. (b) and (c): Kd determination using Scatter plot (b) and a histogram (c) of multiple SW-FCCS measurements to determine the effective Kd of the interaction.</p
SW-FCCS analysis of CENP-T and CENP-W.
No full text(a): ACF curves of EGFP-(s)-CENP-W (green) and mCherry-(s)-CENP-T (red), and CCF curves (blue, purple) in the nucleoplasm of interphase HEK293 cells. The data show cross-correlation between CENP-T and CENP-W, indicating interaction. (b) and (c): Kd determination using Scatter plot (b) and a histogram (c) of multiple SW-FCCS measurements to determine an effective Kd of the interaction. (d): ACF curves of EGFP-(s)-CENP-T∆N (green) and mCherry-(s)-CENP-W (red), and CCF curves (blue, purple) in the nucleoplasm of interphase HEK293 cells. The data show reduced cross-correlation between CENP-T∆N and CENP-W. (e) and (f): Kd determination using Scatter plot (e) and a histogram (f) of multiple SW-FCCS measurements to determine the effective Kd of this interaction between the histone-fold domain of CENP-T (CENP-T∆N) and CENP-W. A defined interaction is detected by both, the linear fit of the scatter plot as well as the log-normal fit of the histogram.</p
Hymenophyllum polyanthos (Sw.) Sw.
No full textHonduras, Comayagua, Comayagua, Quebrada Agua Amarilla. LAT (14°54'46'' N) N; LONG (87°54'31'' W ) W. ALT (1740). "Dense moist hardwood clouf forest along both sides of the Agua Amarilla stream. Nuclear zone of the Azul Meambar National Park, 10.5 km east of Lago Yojoa. Epiphytic fern on thin climbing stem and growing 1 m above the ground. Common.
Hymenophyllum polyanthos (Sw.) Sw.
No full textHonduras, La Paz, Quilito. LAT (14°07'24'' N) N; LONG (87°50'16'' W) W. ALT (2100). "4 km to the north-west of Gúajiquiro. Remnant patch of primary forest. On fallen, decaying tree trunk on side.
Niemcza diorites and moznodiorites (Sudetes, SW Poland): a record of changing geotectonic setting at ca. 340 Ma
No full textGranites sensu lato in the Sudetes intruded in several episodes during the Variscan orogeny recording different stages of crust and mantle evolution. Correlating precise ages with geochemistry of the Variscan granites provides information on the evolution of these sources within the Variscan orogen. The Variscan intrusive rocks from the Niemcza Zone (Bohemian Massif, Sudetes, SW Poland) include undeformed dioritic to syenitic rocks and magmatically foliated granodiorites. In this study we analysed low SiO2 (48–53 wt.%) monzodioritic rocks from Przedborowa and Koźmice. The monzodiorites contain late-magmatic zircons with ages of 341.8 ± 1.9 Ma for Przedborowa and 335.6 ± 2.3 Ma for Koźmice, interpreted as emplacement ages of the dioritic magmas. Older Przedborowa rocks are lower in K, Mg, Rb and Ni than the Koźmice rocks and similar compositional trend is also observed in the Central Bohemian Plutonic Complex. The implication is that the mantle underlying the Niemcza Zone became more enriched from ca. 342 to ca. 336 Ma, probably following the collision of the Saxothuringian and Moldanubian/Lugian domains. The magmatism related to the collision occurred ca. 12 Ma later than that in the Central Bohemian Plutonic Complex, but was accompanied by a similar change in magma chemistry from high-K (Przedborowa) to shoshonitic (Koźmice, Kośmin enclaves) and probably to ultrapotassic (Wilków Wielki)
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