1,722,181 research outputs found
New alkaloids from a hawaiian fungal strain Aspergillus felis FM324
Full text linkFil: Wang, Cong. University of Hawaiʻi at Hilo. Daniel K. Inouye College of Pharmacy. Department of Pharmaceutical Sciences; United States.Fil: Wang, Cong. Guangxi University for Nationalities. School of Chemistry and Chemical Engineering. Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products. Guangxi Key Laboratory of Chemistry and Engineering of Forest Products. State Ethnic Affairs Commission. Key Laboratory of Chemistry and Engineering of Forest Products; China.Fil: Sarotti, Ariel Marcelo. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR-CONICET); ArgentinaFil: Uz Zaman, Ahammad. University of Hawaiʻi at Hilo. Daniel K. Inouye College of Pharmacy. Department of Pharmaceutical Sciences; United States.Fil: Wu, Xiaohua. University of Hawaiʻi at Hilo. Daniel K. Inouye College of Pharmacy. Department of Pharmaceutical Sciences; United States.Fil: Cao, Shugeng. University of Hawaiʻi at Hilo. Daniel K. Inouye College of Pharmacy. Department of Pharmaceutical Sciences; United States
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
Tense as an ‘Altaic’ feature in Northern Sinitic?
No full textSinitic languages are very often described as ‘tenseless’, since they are
mostly seen as lacking grammatical markers of tense. However, the debate
concerning the tenseless nature of Sinitic has not settled yet: several types
of items (modal and aspectual particles, verbs, etc.) have actually been
analyzed as expressing both aspect and tense, tense and modality, or even
tense only. In this paper, we would like to critically evaluate the role that
contact with non-Sinitic (‘Altaic’) languages may have had in the
grammaticalization of grammatical tense markers in Sinitic. Based on a
survey of the proposals concerning the presence vs. absence of tense as a
grammatical category in Sinitic languages, we shall argue that, just as as for many other defining features of the East and Mainland Southeast
Asian Area, the prominence of aspect and the general indeterminatedness
of utterances appear to be somewhat less evident in (part of) Northern
China than in Southern China. We shall assess the claims that contact favoured the development of tense in different Sinitic varieties: while this
is very likely to be true for future markers in the Qinghai-Gansu region and
perhaps in some other Northern Sinitic varieties, other tense
(proto-)systems seem to be mostly explained by internal developments. We
shall also discuss the reasons behind the apparent asymmetry between
future/nonpast and past tense markers in this respect, exploring the role of
the Mongolic languages of China in the establishment of mixed aspect-tense
systems based on the past vs. nonpast opposition
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
Plasticity of mitochondrial translation.
No full textMitochondria maintained a genome during evolution to synthesize core subunits of the oxidative phosphorylation system. Expression of the mitochondrial genome requires intraorganellar replication, transcription, and translation. Membrane-associated ribosomes translate mitochondrial-encoded proteins and facilitate co-translational insertion of newly synthesized polypeptides into the inner membrane. Considering that mitochondrial-encoded proteins assemble with imported, nuclear-encoded proteins into enzyme complexes of the oxidative phosphorylation system, it is expected that expression of mitochondrial genes should adapt to the availability of their nuclear-encoded partners. Recent work shows that mitochondrial translation is influenced by the cellular environment. We discuss how mitochondrial translation is affected by the cellular environment and propose models of translational plasticity that modulate mitochondrial translation in response to the availability of imported proteins
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
- …
