Referential integrity is a database constraint that ensures that references between data are indeed valid and intact. Referential integrity is a fundamental principle of database theory and arises from the notion that a database should not only store data, but should actively seek to ensure its quality. Here are some additional definitions that we found on the Web. • “Referential integrity in a...

Connor et al. (2008) mention “specifying textual requirements of genres” (p.12) as one of the reasons which have motivated researchers in the analysis of writing. Members of each genre should be able to produce and retrieve these textual requirements appropriately to be considered communicatively proficient. One of the textual requirements of genres is regularities of specific forms and content...

There has been increasing interest in utilizing corpora in linguistic research and pedagogy in recent years. Rhetorical organization of different sections of research articles may appear similar in various disciplines, but close examination may show subtle differences nonetheless. One of the features that has been at the center of attention especially in recent years is the idiomaticity of a di...

nanocomposites made of carbon nanotube (cnt) bundles have attracted researchers’ attention due to their unusual properties such as: light weight, flexibility and stiffness.  in this paper, the effects of straight and rope-shaped bundles on nanocomposite effective mechanical properties are investigated.  first, fea models are created consisting of cnts with different shapes of straight and rope-...

This is a paper to the panel “Conceptualizing the workpractice context of IS” at the ALOIS*2006 conference. It is a position statement concerning workpractice theory as a practical theory. Practice theory is concerned with workpractices and as such an example of “referential pragmatism”. A practical theory intends to be of value to practices and such a theory is seen as an example of “functiona...

Referential integrity underlies the relational representation of objeceoriented structures. The concept of referential integrity in relational databases is hindered by the confusion surrounding both the concept itself and its implementation by relational database management systems (RDBMS). Most of this confusion is caused by the diversity of relational representations for object-oriented struc...

    This study investigates the relationship between extraversion/introversion personality dimension and the use of strategic competence (SC) in oral referential communication by Iranian EFL learners. Referential communication refers to a kind of guided communication in which the referents (or topics) are given to the speakers to convey their meanings to the listeners. 50 sophomore English stud...

The Lie derivation of multivector fields along multivector fields has been introduced by Schouten (see cite{Sc, S}), and studdied for example in cite{M} and cite{I}. In the present paper we define the Lie derivation of differential forms along multivector fields, and we extend this concept to covariant derivation on tangent bundles and vector bundles, and find natural relations between them and...

Referential integrity, which guarantees that named resources can be accessed when referenced, is an important property for reliability and security. In distributed systems, however, the attempt to provide referential integrity can itself lead to security vulnerabilities that are not currently well understood. This paper identifies three kinds of referential security vulnerabilities related to t...