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  2. Entry Level Certificate - Wikipedia

    en.wikipedia.org/wiki/Entry_Level_Certificate

    The Entry Level Certificate was launched as the Certificate of Achievement [4] (Certificate of Educational Achievement if offered by WJEC [5]) in September 1996, [6] with the first awards being made in 1998. The grades were originally known as Distinction (now Entry 3), Merit (Entry 2) and Pass (Entry 1).

  3. Certificate of Conformity (Russia) - Wikipedia

    en.wikipedia.org/wiki/Certificate_of_Conformity...

    In Russia, a Certificate of Conformity, also called a Quality Certificate, Safety Certificate or Customs Certificate, affirms that a product or service conforms to legal safety and quality requirements. There are two types of certificate: one demonstrates conformity to the national standards known as GOST, and the other to a particular ...

  4. Data science - Wikipedia

    en.wikipedia.org/wiki/Data_science

    Data science is an interdisciplinary field [10] focused on extracting knowledge from typically large data sets and applying the knowledge and insights from that data to solve problems in a wide range of application domains. The field encompasses preparing data for analysis, formulating data science problems, analyzing data, developing data ...

  5. Thermal desorption spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Thermal_desorption...

    Temperature programmed desorption (TPD) is the method of observing desorbed molecules from a surface when the surface temperature is increased. When experiments are performed using well-defined surfaces of single-crystalline samples in a continuously pumped ultra-high vacuum (UHV) chamber, then this experimental technique is often also referred to as thermal desorption spectroscopy or thermal ...

  6. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    In science and engineering, the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities, e.g. mole fraction or mass fraction. Since these fractions are quantity-per-quantity measures, they are pure numbers with no associated units of measurement. Commonly used are parts-per-million ( ppm ...

  7. Certificate of deposit - Wikipedia

    en.wikipedia.org/wiki/Certificate_of_deposit

    A certificate of deposit ( CD) is a time deposit sold by banks, thrift institutions, and credit unions in the United States. CDs typically differ from savings accounts because the CD has a specific, fixed term before money can be withdrawn without penalty and generally higher interest rates. The bank expects the CDs to be held until maturity ...

  8. Professional certification - Wikipedia

    en.wikipedia.org/wiki/Professional_certification

    A certification is a third-party attestation of an individual's level of knowledge or proficiency in a certain industry or profession. They are granted by authorities in the field, such as professional societies and universities, or by private certificate-granting agencies. Most certifications are time-limited; some expire after a period of ...

  9. Birth certificate - Wikipedia

    en.wikipedia.org/wiki/Birth_certificate

    Birth certificate. A birth certificate is a vital record that documents the birth of a person. The term "birth certificate" can refer to either the original document certifying the circumstances of the birth or to a certified copy of or representation of the ensuing registration of that birth. Depending on the jurisdiction, a record of birth ...