1,723,302 research outputs found
Características estruturais de Capim-buffel cvs. Áridus e CPATSA 7754 submetidas à adubação fosfatada no Semiárido.
Full text linkO objetivo deste trabalho foi determinar, em casa de vegetação, características estruturais de Cenchrus ciliaris L. cultivares Áridus e Cpatsa 7754 submetidas à adubação fosfatada
Características morfogênicas de Capim buffel cvs. Áridus e CPATSA 7754 adubados com fósforo no Semiárido pernambucano.
Full text linkO objetivo deste trabalho foi determinar, em casa de vegetação, o filocrono das cultivares Aridus e Cpatsa 7754 de Cenchrus ciliaris L. submetidas à adubação com doses crescentes de fósforo
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
[Cia Paulista de E. de F., Brazil, Engine Drawing Card, Sketch No. 7754]
No full textThis engine drawing card was created for Companhia Paulista de Estradas de Ferro, Class 14-3-42 1/4 E. Section J-14 1/4 E. Sketch 7754. Copy Spec. 25F325
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
Dynamic Combinatorial Libraries: From Exploring Molecular Recognition to Systems Chemistry
Full text linkDynamic combinatorial chemistry (DCC) is a subset of combinatorial chemistry where the library members interconvert continuously by exchanging building blocks with each other. Dynamic combinatorial libraries (DCLs) are powerful tools for discovering the unexpected and have given rise to many fascinating molecules, ranging from interlocked structures to self-replicators. Furthermore, dynamic combinatorial molecular networks can produce emergent properties at systems level, which provide exciting new opportunities in systems chemistry. In this perspective we will highlight some new methodologies in this field and analyze selected examples of DCLs that are under thermodynamic control, leading to synthetic receptors, catalytic systems, and complex self-assembled supramolecular architectures. Also reviewed are extensions of the principles of DCC to systems that are not at equilibrium and may therefore harbor richer functional behavior. Examples include self-replication and molecular machines.
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
SKIP'S DETIALS IN GOVERNMENT AUTHOR: ANIEFIOK A. ISONG
Full text linkThe book, SKIP'S DETAILS IN GOVERNMENT can be rightly described as Mr.
Aniefiok A. I song's Magnum Opus" because from the preface to the end of the 1ndex
on page 240, one sees a budding scholar from Obbrong, Nkari in ln1 Local
Government Area of Akwa lbom State bring1ng to sharp focus all what the New
policy on Education 6-3-3-4 system has to offer for Government at the Senior
Secondary Level.
In chapter one, the author did not only show that Homo sapiens are gregarious, he
went further to give a series of definitions of Government and the scope of the
subject matter. Government, according to the author, could be "defined as an
institution or machinery setup within the state to mange the affairs oft he state"
(lsong,2002:1 ). He quoted Thomas Hobbes to drive home the importance of
government in any society thus: "Man's life without government is nasty, poor,
brutish and short"
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
- …
