1,720,995 research outputs found
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
Games and explorations in mathematics
Full text linkWho taught us how to use a smartphone? Didn’t
we learn by playing with it? Some of us are still
learning!
Many have argued the importance of play when it
comes to children’s learning. We are all familiar with
quotes like ‘play is the work of childhood’. When it
comes to children, in particular, we are beginning
to blur the dichotomy of ‘work’ and ‘play’. But why
is play so important? How does it help children
(and adults) learn? What role does it have in the
teaching and learning of maths in particular? Let us
start with what we mean by ‘play’ in this article
Optimizing A Product : A Brilliant Use of Some Lateral Thinking!
Full text linkThe game “Random Digits” demands Higher Order Thinking Skills (HOTS). The game starts with a common board for all players. The board is essentially
for addition, subtraction or multiplication with two multi-digit whole numbers. It specifies the operations and the size, i.e., the number of digits of each whole number used in the operation. However, the exact digits are left blank. As the facilitator names each digit, players have to immediately place them on the board. Once placed, the position of a digit cannot be changed. Zero cannot be a leading digit, i.e., it cannot be placed in the leftmost box of any number. If a player is forced to do that, then s/he is disqualified. If the players choose to maximize the sum, difference or product, then the winner is the one with the maximum result (sum, difference or product). However, the players can choose to aim for the minimum as well. In both cases, players have to think where to place each digit in order to optimize his/her result. It is always a good idea to discuss the optimum result after each game. More details on the game can be found at https://publications.azimpremjiuniversity.edu.in/5560/3/Random_digits.pd
Un-folding
Full text link“Mathematics in/from anything and everything” was the theme of the Association of Math Teachers of India (AMTI) conference at Kochi in January 2014. Swati Sircar, mathematics resource person at Azim Premji University delivered this talk in which she folded the cloth to match the math
Low floor high ceiling tasks : in-cyclic quads
No full textE very triangle has a circumcircle and an incircle. But is that
true for every quadrilateral? Definitely not; there are quads
which are not cyclic (recall that a quad with a circumcircle
is called ‘cyclic’). But what about quads with incircles? In this Low
Floor High Ceiling article, we not only explore the if and only if
condition for a quad to have an incircle, but also reflect a certain
duality. It is more fun if students are exposed to Tasks 1 and 2
before they learn the theorems related to cyclic quads
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