Notes, summaries, assignments, exams, and exercises for Electronics for Secondary education

Key Digital Audio Concepts Explained

Frequency

The number of vibrations per second that gives rise to analog sound. The sound spectrum is characterized by its frequency range, which is measured in Hertz (Hz). The human ear picks up only those sounds within the frequency range of 20 Hz to 20,000 Hz.

Sampling Rate (Sample Rate)

Digital audio is a sequence of zeros and ones obtained by sampling an analog signal. The sampling rate, or sample rate, defines how often the value of the analog signal is taken to generate digital audio. This rate is measured in Hertz (Hz). For example, 44,100 Hz indicates that in one second, 44,100 samples were taken from the analog audio signal to create the corresponding digital audio. Higher-quality audio will have a...

1. Conceptual Analysis of Education and Changing Approaches

• 1. Framework and Delimitation: Introductory Outline
• 2. A Perspective History
  • 2.1. Segregation
  • 2.2. Changing Status of Maladjustment Prevention
  • 2.3. Perspective
• 3. Terminological Analysis
• 4. The Standardization Movement
  • 4.1. Introduction: Origins
  • 4.2. Formulation of the Normalization Principle
  • 4.3. Final Considerations
• 5. The Issue Evolution
  • 5.1. Deficit, Disability, and Handicap
• 6. Current Understanding of Special Education

2. School Integration

• 1. Levels of Integration (Soder)
• 2. School Integration Concepts
• 3. Constraints for School Integration Practice
  • 3.1. General Constraints
• 4. Renovating Elements Facilitating Integration
  • 4.1. Integrative Approaches
  • 4.2. The Child as Protagonist and Respect for Differences
  • 4.

Rhetorical Devices and Literary Figures

Sound and Repetition Figures

• Alliteration: The repetition of sounds in two or more words.
• Onomatopoeia: Used in poetry and comics, this is the reproduction of natural sounds (e.g., "toc toc").
• Paronomasia: The use of words that sound similar but have different meanings (e.g., "notary" is a "notorious" example).
• Anaphora: Two or more lines that begin the same way (e.g., "Because he was banished, because he ran out of bird flight").
• Epanadiplosis: A repetition where a line begins and ends with the same word (e.g., "Green, I want you green").
• Pun (Calambur): A play on sounds where changes in sound logically alter the meaning of the words (e.g., "make dice counties").

Syntactic and Structural Figures

• Asyndeton: The

Genetika: osnovni pojmi

Genom = vse informacije organizma zapisane v DNA.

Gen = odsek DNA, ki se prepiše v m-RNA in nato v beljakovino.

Kromosomi = DNA + beljakovina.

Velikost kromosomov = število baznih parov.

Nukleinske kisline

Nukleinske kisline so shramba dednega zapisa, prenos DNA in nadzor beljakovin ter s tem nadzor življenjskih procesov. Gre za makromolekule iz nukleotidov, ki tvorijo polinukleotidno verigo.

Nukleotid sestavljajo: fosfat (PO₄) + sladkor (pentoza) + dušikova baza.

• DNA: adenin, timin, gvanin, citozin
• RNA: adenin, citozin, gvanin, uracil

Nasprotna veriga je antiparalelna in komplementarna. Verigi se povezujeta med nukleotidoma s komplementarnima bazama (A–T, G–C).

Vrste RNA

RNA so ribosomska (rRNA), obveščevalna (mRNA),...