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  2. List of conventions of the Democratic Socialists of America

    en.wikipedia.org/wiki/List_of_conventions_of_the...

    Conventions generally are held biennially; although special conventions can be held any time, no special conventions have been called in DSA's history. The convention is the highest governing body of DSA. [1] Convention delegates are elected from the general membership of individual chapters.

  3. Digital subtraction angiography - Wikipedia

    en.wikipedia.org/wiki/Digital_subtraction...

    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 ...

  4. Digital Signature Algorithm - Wikipedia

    en.wikipedia.org/wiki/Digital_Signature_Algorithm

    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 ...

  5. Direct Selling Association - Wikipedia

    en.wikipedia.org/wiki/Direct_Selling_Association

    The Direct Selling Association (DSA) is a trade association in the United States that represents direct selling companies, primarily those that use multi-level marketing compensation plans. On behalf of its members' companies, the DSA engages in public relations and lobbying efforts against regulation of the multi-level marketing industry, and ...

  6. Oral exam - Wikipedia

    en.wikipedia.org/wiki/Oral_exam

    The viva voce is a component of music diploma examinations administered by ABRSM, Trinity College of Music and London College of Music. Candidates are posed a series of questions by the examiner about their chosen pieces, the composer and musical era. Depending on exam board, candidates may also be required to do a short writeup on their pieces.

  7. Donor-specific antibody - Wikipedia

    en.wikipedia.org/wiki/Donor-specific_antibody

    Donor-specific antibodies (DSA) are a concept in transplantation medicine and describe the presence of antibodies specific to the Donor's HLA-Molecules. These antibodies can cause antibody-mediated rejection and are therefore considered a contraindication against transplantation in most cases. [ 1 ]

  8. Data structure - Wikipedia

    en.wikipedia.org/wiki/Data_structure

    A data structure known as a hash table.. In computer science, a data structure is a data organization and storage format that is usually chosen for efficient access to data. [1] [2] [3] More precisely, a data structure is a collection of data values, the relationships among them, and the functions or operations that can be applied to the data, [4] i.e., it is an algebraic structure about data.

  9. Defence Space Agency - Wikipedia

    en.wikipedia.org/wiki/Defence_Space_Agency

    [10] [11] The DSA is a downsized implementation of this proposal. [3] The creation of the Defence Space Agency (DSA), the Defence Cyber Agency (DCA), and the Armed Forces Special Operations Division (AFSOD) was approved by Prime Minister Narendra Modi during the Combined Commanders' Conference at Jodhpur Air Force Station on 28 September 2018.