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Digital subtraction angiography (DSA) is a fluoroscopy technique used in interventional radiology to clearly visualize blood vessels in a bony or dense soft tissue environment. Images are produced using contrast medium by subtracting a "pre-contrast image" or mask from subsequent images, once the contrast medium has been introduced into a ...
The Democratic Socialists of America (DSA) is a big tent, democratic socialist political organization in the United States. [10] After the Socialist Party of America (SPA) was renamed Social Democrats, USA, Michael Harrington formed the Democratic Socialist Organizing Committee (DSOC). [11]
A domain-specific architecture (DSA) is a programmable computer architecture specifically tailored to operate very efficiently within the confines of a given application domain. The term is often used in contrast to general-purpose architectures, such as CPUs , that are designed to operate on any computer program .
Disabled Students' Allowance (DSA) is a non-repayable grant available to disabled students of higher education in the United Kingdom.It is paid by the Student Loans Company [1] on behalf of Student Finance England, [2] Student Finance Wales, [3] Student Awards Agency Scotland, [4] Student Finance Northern Ireland, [5] and the governments of Jersey, [6] Guernsey, [7] and the Isle of Man.
The Digital Signature Algorithm (DSA) is a public-key cryptosystem and Federal Information Processing Standard for digital signatures, based on the mathematical concept of modular exponentiation and the discrete logarithm problem. In a public-key cryptosystem, a pair of private and public keys are created: data encrypted with either key can ...
Dynamic Site Acceleration (DSA) is a group of technologies which make the delivery of dynamic websites more efficient. [1] Manufacturers of application delivery controllers and content delivery networks (CDNs) use a host of techniques to accelerate dynamic sites, including:
Directed self-assembly (DSA) is a type of directed assembly which utilizes block co-polymer morphology to create lines, space and hole patterns, facilitating for a more accurate control of the feature shapes. Then it uses surface interactions as well as polymer thermodynamics to finalize the formation of the final pattern shapes. [1]
A Directory System Agent (DSA) is the element of an X.500 directory service that provides User Agents with access to a portion of the directory (usually the portion associated with a single Organizational Unit).