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  1. Basics
    by Dr. Osama M. Khaled — published Jun 27, 2022 — last modified Jul 13, 2024 10:28 PM — filed under: Year 10
    Basic introductory questions in database systems
    Located in Computing / Database / Introduction
  2. Database Actors in the Scene
    by Dr. Osama M. Khaled — published Aug 31, 2025 — last modified Oct 18, 2025 12:14 PM — filed under: Year 10, Year 11, Year 12
    We identify the people whose jobs involve the day-to-day use of a large database but no actively interested in the content of the database.
    Located in Computing / Database / Introduction
  3. Advantages of using a DMBS approach
    by Dr. Osama M. Khaled — published Sep 04, 2025 — last modified Oct 18, 2025 12:15 PM — filed under: Year 10, Year 11, Year 12
    Some advantages that a good DMBS can provide to a software solution
    Located in Computing / Database / Introduction
  4. Cell Structure Definitions
    by Dr. Osama M. Khaled — published May 17, 2022 — last modified Jul 13, 2024 10:46 PM — filed under: Year 10
    Play hangman and get to know more definitions related to cell structure topic
    Located in Biology / Cell Structure
  5. Microscopes
    by Dr. Osama M. Khaled — published May 12, 2022 — last modified Jul 13, 2024 10:46 PM — filed under: Year 10
    A microscope is a laboratory instrument scientists use to examine objects that cannot be seen by naked eyes.
    Located in Biology / Cell Structure
    Microscopes
  6. Cells
    by Dr. Osama M. Khaled — published May 23, 2022 — last modified Jul 13, 2024 10:45 PM — filed under: Year 10
    Cells and cell theory
    Located in Biology / Cell Structure
    Cells
  7. Implication Statement Breakdown
    by Dr. Osama M. Khaled — published Jun 13, 2022 — last modified Sep 06, 2026 07:06 AM — filed under: Year 10
    Identify the antecedent and consequent in an implication statement
    Located in Mathematics / … / Formal Logic / Statements, Symbolic Representation, and Tautologies
  8. Negation of a statement
    by Dr. Osama M. Khaled — published Jun 13, 2022 — last modified Sep 06, 2026 07:06 AM — filed under: Year 10
    Expressing the negation of a statement must be done with care
    Located in Mathematics / … / Formal Logic / Statements, Symbolic Representation, and Tautologies
  9. Energy and Its Units
    by Dr. Osama M. Khaled — published Aug 02, 2026 — last modified Aug 06, 2026 09:59 PM — filed under: Year 10, Year 11
    Define energy, work, and the law of conservation of energy, and convert between joules and calories
    Located in Chemistry / Energy and Chemistry
  10. Angle of Inclination and Slope of a Line
    by Dr. Osama M. Khaled — published Aug 24, 2026 — last modified Aug 28, 2026 09:44 PM — filed under: Year 10, Year 11
    Covers the definition of the angle of inclination, the slope of a nonvertical line, and the relation tan(theta) = slope.
    Located in Mathematics / Calculus / From Geometry to Coordinate Geometry
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