Social engineering is the acquisition of information about computer systems by methods that deeply include non-technical means. While technical security of most critical systems is high, the systems remain vulnerable to attacks from social engineers. Social engineering is a technique that: (i) does not require any (advanced) technical tools, (ii) can be used by anyone, (iii) is cheap. While som...

Drawing on recent advances in the study of reference dependent utility we model financial markets as a coordination game with multiple equilibria. Asset valuations may change endogenously through re-coordination which induces fluctuations in output. These fluctuations are shown to be quantitatively relevant and inefficient. JEL-Classification: G12 Acknowledgements: I am grateful to Roger Farmer...

INTRODUCTION Cases of plagiarism among professional writers have gained increasing media attention in recent years. As a result, many students of professional writing fear that they may be “stealing,” or committing intellectual “theft,” whenever they make use of any existing material in their writing. They have been warned against such uses by several sources. Instructors and university adminis...

10 11 Abstract Studying how collaborative activity takes shape interactionally in the con12 text of technological settings is one of the main challenges in the field of Computer13 Supported Collaborative Learning (CSCL). It requires us, amongst other things, to 14 look into the ‘black box’ of how technical artifacts are brought into use, or rather, 15 how they are attuned to, interacted with, a...

The purpose of this research is to identify the disciplines’ participation which are related to the drawing teaching in 74 engineering undergraduate courses in the Santa Catarina State, and to figure out what are the disciplines’ focus in their 19 modalities. We have opted for an analysis in the curricular grid’s use for these courses in order to spot which disciplines work with contents relate...

ÐImage indexing, namely, the problem of retrieving content information from images in response to queries, is a key problem underlying the operations in image databases. In this paper we present a method of indexing for 3D object queries in a database of a class of images called technical line drawings. Indexing is achieved as a combination of query-specific region selection and object recognit...

We present a syntactic approach to technical drawing dimensions analysis. A speciic grammar is used to describe dimensions of drawings. This grammar can be graphically designed by combining diierent graphic primitives. The algorithm used for analysis can start at diierent points of the grammar. The analysis proceeds bottom-up and top-down according to previously obtained results.

The rapid change in teaching of engineering drawing using computer aided design (CAD) technology makes a tremendous change on the staff/students in teaching/understanding engineering drawing in technical institutions. Mastering CAD technology has become order of the day for staff/students especially in technical institutions. CAD course have become a compulsory subject in many technical univers...