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Medium 9780596519247

Getting Started

Joseph Albahari O'Reilly Media ePub

The basic units of data in LINQ are sequences and elements. A sequence is any object that implements the generic IEnumerable interface, and an element is each item in the sequence. In the following example, names is a sequence, and Tom, Dick, and Harry are elements:

We call such a sequence a local sequence because it represents a local collection of objects in memory.

A query operator is a method that transforms a sequence. A typical query operator accepts an input sequence and emits a transformed output sequence. In the Enumerable class in System.Linq, there are around 40 query operators, all implemented as static extension methods, called standard query operators.

LINQ also supports sequences that can be dynamically fed from a remote data source such as a SQL Server. These sequences additionally implement the IQueryable<> interface and are supported through a matching set of standard query operators in the Queryable class. For more information, see the upcoming Interpreted Queries section.

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Medium 9781780426839

Michel-Ange l’architecte

Eugène Müntz Parkstone International PDF

Michel-Ange l’architecte

La contribution de Michel-Ange à l’architecture est assez tardive dans sa vie d’artiste. La relation entre la construction et l’espace qu’il occupe devient primordiale dans l’approche de Michel-Ange. La Renaissance voulait déjà accorder la taille des éléments d’architecture aux dimensions humaines. Michel-Ange considère pour sa part que la proportion n’est pas le seul élément à prendre en compte, il faut également envisager l’aspect viable et fonctionnel du bâtiment tout en respectant les correspondances avec l’anatomie humaine.

À Rome, Michel-Ange fait ses premiers pas d’architecte, entre 1513 et 1516, en dessinant et exécutant une petite façade pour la chapelle dédiée à saint Côme et saint

Damien, les deux patrons des Médicis. L’artiste utilise des éléments d’architecture classique, mais déjà il leur adjoint des éléments révolutionnaires. Ainsi les corniches se brisent, permettant l’alternance de zones d’ombre et de lumière. Il poursuit ces brisures de perspective en ajoutant des éléments de reliefs au mur : modillons et autres éléments ornementaux. Le marbre n’est pas qu’une surface, il est une matière permettant des jeux de veinure, de lumière et d’épaisseur. L’année suivante, il réalise à Florence les fenêtres du palais Médicis.

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Medium 9781449383138

12. Testing

Laurent, Simon St. O'Reilly Media ePub

Testing can spare you much of the work you learned to do in the previous chapter, replacing spot-check debugging with more structured and thorough repetitive testing. Ruby culture places a high value on testing, and Ruby and Rails have grown up with agile development methods where testing is assumed to be a normal part of development. While testing is a complicated subject worthy of a book or several, its definitely worthwhile to start including tests early in your project development, even while youre still learning the Rails landscape.

Rails provides a number of facilities for creating and managing tests. This chapter will explore Rails basic testing setup and note some options for building more advanced test platforms. (Examples for this chapter are in ch12/students006.)

Many developers use RSpec, an additional framework for testing noted at the end of this chapter, but its worth understanding the foundations provided in Rails itself.

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Medium 9781601322593

A User-Centric Privacy-Aware Protection System

Kevin Daimi, Hamid R. Arabnia, Michael R. Grimaila, Kathy Liszka, George Markowsky, and Ashu, M. G. Solo CSREA Press PDF

Int'l Conf. Security and Management | SAM'13 |


A User-Centric Privacy-Aware Protection System

Li Yang, Travis Tynes

Department of Computer Science, University of West Georgia, Carrollton, GA 30118, USA

Abstract - Nowadays it is increasingly important to protect private information from unintended and unauthorized use.

Traditional access control models generally lack the support for privacy protection. Some studies have been done in the area of integrating privacy control with XML access control.

However, often the focus is placed on organization-specific privacy policies. And how to handle user consent and user preferences are often not addressed. In this paper, we describe our approach based on XACML to integrating XML data access control and privacy control with user consent, preferences and break-glass access procedure considered. We also present a prototype system being developed in the context of health care systems to demonstrate the feasibility of our approach.

Keywords: XML, Privacy Access Control, XACML, User

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Medium 9781617833649

Natural Wonder

Murray, Julie ABDO PDF

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