Notes, summaries, assignments, exams, and problems for Baccalaureate

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Mexican Post-Revolutionary Era: Key Concepts & Events

Classified in Social sciences

Written on in English with a size of 8.41 KB

Crossword Definitions

Down:

  1. Subsidiarity: Principle according to which the state intervenes only in areas where individuals or private initiative cannot act.
  2. Citizenship: The position or status of being a citizen.
  3. Welfare State: Government model that seeks to guarantee social rights such as health, education.
  4. Liberalism: A political and economic current that promotes the free market.

Across:

  1. Crisis: Period of financial instability, marked by devaluations.
  2. Social Justice: Principle that seeks to guarantee equality and equity.
  3. Development Plan: Set of strategies implemented by the state.
  4. Solidarity: Value that encourages cooperation between citizens.

Key Historical Concepts & Events

  • During the period known as Maximato, Plutarco Elías Calles exercised
... Continue reading "Mexican Post-Revolutionary Era: Key Concepts & Events" »

Programming Fundamentals: Loops, Structures, Functions & File Handling

Classified in Computers

Written on in English with a size of 22.07 KB

When to Use For Loops vs. While Loops

A for loop and a while loop are both used for iteration in programming, but they serve different purposes and are used in different scenarios. Here are three key points to consider when deciding which loop to use:

  • Known vs. Unknown Iterations

    For Loop: Use a for loop when the number of iterations is known beforehand. For example, iterating over a fixed range of numbers or elements in a collection (like an array or list).

    While Loop: Use a while loop when the number of iterations is not known in advance and depends on a condition being met. This is useful for scenarios where you need to continue looping until a specific condition changes (e.g., reading input until a user decides to stop).

  • Control Structure Differences

    For

... Continue reading "Programming Fundamentals: Loops, Structures, Functions & File Handling" »

Essential .NET Concepts: CLR, FCL, MSII

Classified in Computers

Written on in English with a size of 3.35 KB

Key .NET Concepts Defined

Managed Code Explained

Managed code is the code executed by the .NET runtime (CLR), which provides memory management, security, and exception handling.

.NET Framework Class Library (FCL)

FCL is a collection of reusable classes, interfaces, and value types that provide core functionalities like file handling, data access, and networking in .NET applications.

Boxing in VB.NET

Boxing is the process of converting a value type (e.g., Integer) into an object type (Object), allowing it to be stored in the heap.

Option Explicit Statement

In VB.NET, Option Explicit forces variable declarations before use, preventing errors due to undeclared variables.

Progress Bar Control Use

A Progress Bar control visually represents the progress of... Continue reading "Essential .NET Concepts: CLR, FCL, MSII" »

Echinoderms & Arthropods: Morphology, Features, and Biology

Classified in Biology

Written on in English with a size of 3.65 KB

Echinoderms

Phylum: Echinodermata

  • Sea stars (starfish)
  • Sea urchins
  • Sand dollars
  • Sea cucumbers
  • Brittle stars

Key Features:

  • Symmetry: Larvae: Bilateral; Adults: Pentaradial
  • Body Covering: Spiny skin, endoskeleton made of calcium carbonate
  • Movement: Tube feet powered by water vascular system
  • Nervous System: No brain; nerve ring with radial nerves
  • Circulation: Water vascular system (no true circulatory system)
  • Respiration: Diffusion via tube feet or skin gills
  • Reproduction: Mostly external fertilization; can regenerate lost parts
  • Habitat: Marine only (no freshwater/terrestrial species)

Water Vascular System

A hydraulic system for movement, feeding, and respiration.

Frequently Asked Questions
  1. What type of symmetry do adult echinoderms have? Pentaradial symmetry
  2. Which
... Continue reading "Echinoderms & Arthropods: Morphology, Features, and Biology" »

Understanding Drug Dosage Forms and Their Applications

Classified in Chemistry

Written on in English with a size of 3.11 KB

What is a Dosage Form?

A dosage form may be defined as a blend of drugs and additives, produced in a definite physical form, size, and shape suitable for administration by a particular route.

Key Properties of Dosage Forms

  • Economical
  • Provides protection to the drug substance.
  • Provides a better therapeutic effect.
  • Easy to identify.
  • Conceals bitter taste or odor.
  • Easy to use and handle.
  • Easy to store.
  • Stable during use.

Importance and Need for Dosage Forms

The need for dosage forms, or their importance, is outlined below:

  1. To protect the drug substance from oxidation, reduction, and hydrolysis (e.g., coated tablets, sealed ampules).
  2. To provide a safe and convenient delivery of accurate dosage.
  3. To mask the bitter, salty, or obnoxious taste or odor of a drug substance
... Continue reading "Understanding Drug Dosage Forms and Their Applications" »

Core Web Development Concepts: Node.js, Express, React, Redux, MongoDB

Classified in Computers

Written on in English with a size of 38.95 KB

Node.js Fundamentals

Understanding Node.js Modules

Modules in Node.js are reusable pieces of code that can be exported from one file and imported into another. Each file in Node.js is considered a module, operating within its own scope. Modules help organize code into separate files for better maintainability and reusability.

Types of Node.js Modules:

  1. Core Modules: Built-in modules provided by Node.js, pre-installed and ready to use.
  2. Local Modules: Custom modules created by developers for specific application logic.
  3. Third-party Modules: Modules installed via npm (Node Package Manager), extending Node.js functionality.

Key Built-in Node.js Core Modules

Core modules are essential, pre-installed components of Node.js. You can use them directly in your... Continue reading "Core Web Development Concepts: Node.js, Express, React, Redux, MongoDB" »

Real-Time System Scheduling & Kernel Concepts

Classified in Electronics

Written on in English with a size of 17.9 KB

1. Task Constraints in Real-Time Systems

In real-time systems, task constraints refer to the limitations or requirements that must be met for timely and correct execution. The key constraints include:

  • Time constraints (hard and soft deadlines)
  • Precedence constraints (task dependencies)
  • Resource constraints (limited CPU, memory)
  • Synchronization constraints (shared resource management)

Failing to meet these constraints can result in system failure in critical applications like aircraft control and medical monitoring systems.

2. EDD (Earliest Due Date) Algorithm Explained

The EDD (Earliest Due Date) algorithm is used for aperiodic task scheduling, where tasks are executed in order of their deadlines. The task having the earliest due date is given the

... Continue reading "Real-Time System Scheduling & Kernel Concepts" »

Key English Language Concepts

Classified in Medicine & Health

Written on in English with a size of 5.53 KB

Essential English Vocabulary

Sports Venues & Equipment

  • Badminton Court = Pista de bàdminton
  • Boxing Ring = Ring de boxa
  • Diving Board = Trampolí de piscina
  • Golf Course = Camp de golf
  • Ice Rink = Pista de gel
  • Martial Arts Gym = Gimnàs d'arts marcials
  • Race Course = Hipòdrom / Pista de curses
  • Rugby Pitch = Camp de rugbi
  • Ski Slope = Pista d'esquí

Sports Equipment

  • Ball
  • Boots
  • Clubs
  • Gloves
  • Goggles
  • Horses (for equestrian sports)
  • Racket
  • Skates
  • Snow (for skiing/snowboarding)
  • Water (for water sports)

Crime & Justice Vocabulary

  • Prison Sentence = Sentència de presó
  • Millionaire = Milionari
  • Murders = Assassinats
  • Hostage = Ostatge
  • Thief = Lladre
  • Commit (a crime) = Cometre (un crim)
  • Crime = Crim
  • Arrest = Arrestar
  • Forge = Falsificar
  • Hijack = Segrestar (vehicle)
  • Kidnap = Segrestar
... Continue reading "Key English Language Concepts" »

Artificial Intelligence Fundamentals: Algorithms, Agents, and Applications

Classified in Other subjects

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Heuristic Functions in AI

A heuristic function is a function used in algorithms, especially in search and optimization problems, to estimate the cost or value of a particular state or action. It provides an informed guess to guide decision-making towards an optimal or near-optimal solution efficiently.

Key Aspects of a Heuristic Function

  • Estimation, Not Exact: It provides an approximate cost to reach the goal from a given state.
  • Improves Efficiency: Helps reduce the number of states explored, speeding up search algorithms.
  • Domain-Specific: Often designed based on the specific problem being solved.

The A* Algorithm Explained

A* (A-star) is one of the most popular and widely used pathfinding and graph traversal algorithms. It is commonly used in artificial... Continue reading "Artificial Intelligence Fundamentals: Algorithms, Agents, and Applications" »

Digital Logic: Moore's Law, Logic Gates, and Number Systems

Classified in Computers

Written on in English with a size of 708.55 KB

Lecture 1: Moore's Law

Moore's Law: The number of transistors on microchips doubles every two years.

Lecture 2: Logic Gates

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AND, OR, and NOT gates are universal.

Logic word problem steps:

Example: In a bank, there were four employees: the bank manager, assistant manager, teller, and the security guard. The bank has a single vault for the storage of their money. This vault was designed so that it needs four signals to open it. These four signals are from the bank manager, assistant manager, teller, and the security guard. For the vault to open, it needs the following conditions:

  1. No single employee can open the vault.
  2. It can be opened with three employees as long as one of them is the manager.
  3. It can be opened by the manager together with the assistant
... Continue reading "Digital Logic: Moore's Law, Logic Gates, and Number Systems" »