نتایج جستجو برای: valid

تعداد نتایج: 76700  

Journal: :African Anthropologist 1999

Journal: :Philosophy of Science 2016

2006
Carlo Combi Barbara Oliboni

In this paper we propose an approach to manage in a correct way valid time semantics for semistructured temporal clinical information. In particular, we use a graph-based data model to represent radiological clinical data, focusing on the patient model of the well known DICOM standard, and define the set of (graphical) constraints needed to guarantee that the history of the given application do...

2003
Dengfeng Gao Richard T. Snodgrass

As with relational data, XML data changes over time with the creation, modification, and deletion of XML documents. Expressing queries on timevarying (relational or XML) data is more difficult than writing queries on nontemporal data. In this paper, we present a temporal XML query language, XQuery, in which we add valid time support to XQuery by minimally extending the syntax and semantics of X...

2006
Rafik Bouaziz Mohamed Mkaouar Mohamed Moalla

The methodological integration of the temporal dimension in databases requires primitives that allow rigorous and progressive specification of this dimension since the conceptual and organizational levels. For this goal, we propose concepts and graphic formalisms, in accordance with the abstractions of the tow levels of the entity-relationship model. These concepts allow the expression of requi...

Journal: :Český finanční a účetní časopis 2020

Journal: :Neuropsychopharmacology 2018

Journal: :Combinatorics, Probability and Computing 1996

Journal: :Journal of medical ethics 2008
G L Bock

Patient requests for "inappropriate" medical treatment (violations of the standard of care) based on religious beliefs should have special standing. Nevertheless, not all such requests should be honored, because some are morally disturbing. The trouble lies in deciding which ones count. This paper proposes criteria that would qualify a religious belief as medically valid to help physicians deci...

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