1,723,653 research outputs found
Linked collectors and determiners for: Colección de Nemertinos del Museo de Historia Natural Marina de Colombia - Makuriwa.
No full textNatural history specimen data linked to collectors and determiners held within, "Colección de Nemertinos del Museo de Historia Natural Marina de Colombia - Makuriwa". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/55008a90-47f7-4da2-9545-dcfba33dc725">https://bionomia.net/dataset/55008a90-47f7-4da2-9545-dcfba33dc725</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/55008a90-47f7-4da2-9545-dcfba33dc725">https://gbif.org/dataset/55008a90-47f7-4da2-9545-dcfba33dc725</a>. Formatted as a Frictionless Data package
Efficient Manufacturing Process for the Selective Estrogen Receptor Degrader GDC-9545 (Giredestrant) via a Crystallization-Driven Diastereoselective PictetSpengler Condensation
No full textGDC-9545 is a selective estrogen
receptor degrader that is being
developed as a treatment for ER+/HER2– breast cancer. A robust,
convergent manufacturing process for GDC-9545 was developed. The process
features a Wenker aziridine synthesis to produce the key starting
material tryptamine 11, a highly efficient C–N
coupling between aminoazetidine 9 and 2,6-difluoro-4-bromobenzaldehyde
diethyl acetal (33) to construct key intermediate 10, and a crystallization-driven diastereoselective Pictet–Spengler
reaction to furnish the active pharmaceutical ingredient GDC-9545·tartrate
Linked collectors and determiners for: Phylogenomics and the rise of the angiosperms.
No full textNatural history specimen data linked to collectors and determiners held within, "Phylogenomics and the rise of the angiosperms". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="http://bionomia.net/dataset/4195e042-b632-47ba-9545-32a5e3033ff7">https://bionomia.net/dataset/4195e042-b632-47ba-9545-32a5e3033ff7</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/4195e042-b632-47ba-9545-32a5e3033ff7">https://gbif.org/dataset/4195e042-b632-47ba-9545-32a5e3033ff7</a>. Formatted as a Frictionless Data package
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
External tagging does not affect the feeding behavior of a coral reef fish, Chaetodon vagabundus (Pisces: Chaetodontidae)
Get PDFAuthor Posting. © The Author(s), 2009. This is the author's version of the work. It is posted here by permission of for personal use, not for redistribution. The definitive version was published in Environmental Biology of Fishes 86 (2009): 447-450, doi:10.1007/s10641-009-9545-9.Increasingly, the ability to recognize individual fishes is important for studies of population
dynamics, ecology, and behavior. Although a variety of methods exist, external tags remain one
of the most widely applied because they are both effective and cost efficient. However, a key
assumption is that neither the tagging procedure nor the presence of a tag negatively affects the
individual. While this has been demonstrated for relatively coarse metrics such as growth and
survival, few studies have examined the impact of tags and tagging on more subtle aspects of
behavior. We tagged adult vagabond butterflyfish (Chaetodon vagabundus) occupying a 30-ha
insular reef in Kimbe Bay, Papua New Guinea, using a commonly-utilized t-bar anchor tag. We
quantified and compared feeding behavior (bite rate), which is sensitive to stress, of tagged and
untagged individuals over four separate sampling periods spanning four months post-tagging.
Bite rates did not differ between tagged and untagged individuals at each sampling period and,
combined with additional anecdotal observations of normal pairing behavior and successful
reproduction, suggest that tagging did not adversely affect individuals.The authors gratefully
acknowledge funding from the Fulbright Program, National Science Foundation and the
Australian Research Council
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
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