1,720,963 research outputs found
Network layer protocols with Byzantine robustness
No full textThesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1988.Includes bibliographical references.by Radia Perlman.Ph.D
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
Using Computer Technology to Provide a Creative Learning Environment for Preschool Children
No full textTORTIS is a system of special terminals together with software which is designed to provide programming capability and be accesible for use by very young children. The system is designed to add capabilities in small increments so that the child is never overwhelmed by too much to learn at one time, and maintains a feeling of control over the environment. This system facilitates learning of various concepts such as relative size of numbers, frames of reference, procedures, conditionals, and recursion, but more importantly it teaches good problem solving techniques and a healthy approach to learning
TORTIS: Toddler's Own Recursive Turtle Interpreter System
No full textTORTIS is a device for preschool children to communicated with and program the turtle. It consistst of several boxes (currently 3 button boxes and two blox boxes) designed so that only a few new concepts are introduced at a time but more can be added when the child becomes familiar with what he has. Hopefully transitions are gradual enough so that the child never thinks talking to the turtle is too hard or that he is "too dumb". And hopefully playing with the system should teach such concepts as numbers, breaking large problems into small solvable steps, writin and debugging procedures, recursion, variables, and conditionals. Most important of all, it should teach that learning is fun
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
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