1,721,342 research outputs found
Model data for East Antarctic Cooling Induced by Decadal Changes in Madden-Julian Oscillation During Austral Summer
No full textThis dataset pertains to the simulation outputs of paper "East Antarctic Cooling Induced by Decadal Changes in Madden-Julian Oscillation During Austral Summer". The AGCM experiment outputs for Figures 3B, 3C, 3E, and 3F were named by the figure numbers respectively. Coupled model outputs of CTRL and LP90 experiments used for plotting Figure 4 were named by model experiments and related variables
Model data for Multidecadal changes in zonal displacement of tropical Pacific MJO variability modulated by North Atlantic SST
No full textThis dataset pertains to the outputs of NESM sensitivity experiments as described in paper "Multidecadal changes in zonal displacement of tropical Pacific MJO variability modulated by North Atlantic SST"
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
Assessing genetic diversity of three species of potato tuber moths (Gelechiidae, Lepidoptera) in the Ecuadorian highlands
No full textFu, Zhen, Castillo Carrillo, Carmen I., Rashed, Arash, Asaquibay, César, Aucancela, Rodrigo, Camacho, José, López, Victoria, Quimbiamba, Verónica, Yumisaca, Fausto, Panchi, Nancy, Velasco, Claudio (2020): Assessing genetic diversity of three species of potato tuber moths (Gelechiidae, Lepidoptera) in the Ecuadorian highlands. Florida Entomologist 103 (3): 329-336, DOI: 10.1653/024.103.0304, URL: https://bioone.org/journals/florida-entomologist/volume-103/issue-3/024.103.0304/Assessing-Genetic-Diversity-of-Three-Species-of-Potato-Tuber-Moths/10.1653/024.103.0304.ful
Tetra-2,3-pyrazinoporphyrazines with Externally Appended Pyridine Rings. 12. New Heteropentanuclear Complexes Carrying Four Exocyclic Cis-platin-like Functionalities as Potential Bimodal (PDT/Cis-platin) Anticancer Agents
No full textHeteropentanuclear porphyrazines having the formula [(PtCl2)(4)LM] where L = tetrakis-2,3-[5,6-di(2-pyridyl)pyrazino]porphyrazinato dianion and M = Zn-II, Mg-11(H2O), Pd-II, Cu-II or Co-II were characterized by elemental analyses, IR-UV- visible spectroscopy and electrochemistry and the data compared to new and previously published results for the corresponding homopentanuclear compound [(PtCl2)(4)LPt]. This latter species has four external N2(py)PtCl2 coordination sites which closely resemble cis-platin, (NH3)(2)PtCl2, the potent chemotherapeutic anticancer drug, and is able to act as a photosensitizer for the generation of O-1(2), the cytotoxic agent in photodynamic therapy (PDT). UV-visible spectra and half wave potentials for reduction of [(PtCl2)(4)LM], [(PtCl2)(4)LPt], the parallel series of mononuclear [LM] compounds and the pentanuclear [(PdCl2)(4)LM] compounds were examined in the nonaqueous solvents dimethyl sulfoxide, pyridine, and dimethylformamide. The complete set of available data indicate that external coordination of the PtCl2 and PdCl2 units significantly increases the level of the electron-deficiency of the entire molecular framework despite the fact that these groups are far away from the central porphyrazine pi-ring system and have coordination sites nearly orthogonal to the plane of the macrocycle. The pentanuclear species [(M'Cl-2)(4)LM] (M' = pt(II), Pd-II) undergo multiple one-electron transfers and exhibit an easier reducibility as compared to related electrode reactions of the parent compounds [LM] having the same central metal. Aggregation phenomena and reducibility of the porphyrazines to their monoanionic form (prevalently in DMF) are observed for some of the examined compounds and were analyzed and accurately taken into account. Quantum yields of O-1(2) (Phi Delta), of interest in PDT, were measured for [(PtCl2)(4)LM] with M = Zn-II, Mg-II(H2O), or Pd-II and the related macrocycles [(PdCl2)(4)LM] and [LM] in dimethylformamide (DMF) and/or DMF preacidified with HCI (DMF/HCl, [HCl]: 1-2 x 10(-4) M). Excellent Phi(Delta) values (0.5-0.6) which qualify the compounds as potent photosensitizers in PDT were obtained for the pentanuclear species having Zn-II or Pd-II as central metal ions. The [(PtCl2)(4)LZn] and [(PtCl2)(4)LPd] complexes are of special interest as potential bimodal anticancer agents because of the incorporated four cis-platin-like functionalities
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