1,720,984 research outputs found
Building the Open Source Science Stack
No full textThis document is a response from 2i2c.org to NASA RFI NNH23ZDA005L: Scientific Data and Computing Architecture to Support Open Science. The submission provides guidance for NASA on how technology and social innovations will help advance the agency's Open Source Science Initiative.
Science is a social enterprise that builds and organizes human understanding of the universe with testable explanations and predictions. Science is a doorway through which we can walk into a better tomorrow. The enterprise of science, carried out in social structures like universities and colleges, government agencies, academic societies, conferences and workshops, philanthropic institutions, publishers, laboratories, research teams,..., constantly evolves. The unification of federal agencies to declare 2023 as the Year of Open Science is an historical opportunity to innovate and improve science at NASA and beyond.
The inputs of the scientific enterprise are people and resources organized in social structures. The people participate in science by working with the resources and each other to generate the outputs of science: advances to human understanding of nature. What would it take to boost scientific productivity by an order of magnitude in a decade? A linear answer: a 10X boost in the inputs – people and resources – will generate a 10X boost in the outputs. The more exciting answer is nonlinear: improvements to the ways people participate in the science enterprise – open science – will generate massive gains in productivity.
Three guiding ideas summarize 2i2c’s advice for NASA. We encourage NASA to:
Recognize each person’s right to participate as a core tenet of open science
Eliminate accidental complexity to enable participation and collaboration
Build “digital villages” enabling open science communities to flourish.
2i2c will collaborate with NASA to enable communities that want to do science in the open by empowering them to do so with state-of-the-art digital and social infrastructure
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
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
Standing Ring Blowup Solutions for the Cubic Nonlinear Schrodinger Equation
Get PDFThe cubic focusing nonlinear Schrodinger equation is a canonical model equation that arises in physics and engineering, particularly in nonlinear optics and plasma physics. Cubic NLS is an accessible venue to refine techniques for more general nonlinear partial differential equations.
In this thesis, it is shown there exist solutions to the focusing cubic nonlinear Schrodinger equation in three dimensions that blowup on a circle, in the sense of L2-norm concentration on a ring, bounded H1-norm outside any surrounding toroid, and growth of the global H1-norm with the log-log rate.
Analogous behaviour occurs in higher dimensions. That is, there exists data for which the corresponding evolution by the cubic nonlinear Schrodinger equation explodes on a set of co-dimension two.
To simplify the exposition, the proof is presented in dimension three, with remarks to indicate the adaptations in higher dimension.Ph
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
Low Regularity Stability for Subcritical Generalized Korteweg-de Vries Equations
No full textIn this thesis we prove polynomial-in-time upper bounds for the orbital instability of solitons for subcritical generalized Korteweg-de Vries equations in [special characters omitted](R) with s < 1. By combining coercivity estimates of Weinstein with the I-method as developed by Colliander, Keel, Staffilani, Takaoka, and Tao, we construct a modified energy functional which is shown to be almost conserved while providing us with an estimate of the deviation of the solution from the ground state curve. The iteration of the almost conservation law for the modified energy functional over time intervals of uniform length yields the polynomial upper bound.Ph
- …
