Notes, summaries, assignments, exams, and problems

COSO ERM is more structured and closely tied to strategy, governance, and performance.
ISO 31000 is more flexible and principle-based, so it can fit many types of organizations.
In practice, COSO is often used for stronger internal control, while ISO is easier to adapt.

2.
Controls help reduce inherent risk to an acceptable target or residual risk level.
They work by preventing, detecting, or correcting problems.
Their effectiveness should be evaluated by checking whether they actually lower likelihood, impact, and repeated failures.

3.
ISO defines risk management as a way to create and protect value. COSO focuses more on managing uncertainty to improve strategy and performance.
This means ISO is broader, while COSO is more linked to business objectives... Continue reading "The Tempest, Act 1" »

The Transformation of the Soviet Union (1928–1941)

Joseph Stalin transformed the Soviet Union between 1928 and 1941 through radical economic and social changes. He prioritized rapid industrial growth and forced agricultural reform to strengthen the nation. However, he relied on violence, fear, and propaganda to achieve his objectives. Although Stalin modernized the Soviet Union, his leadership is widely condemned because his methods caused widespread suffering and mass death.

Industrialization and Agricultural Reform

Stalin implemented major changes to both industry and agriculture:

• Five-Year Plans: Stalin set aggressive production targets for electricity, coal, oil, pig iron, and steel to build a robust industrial economy.
• Collectivization: Small

How to Plan a Presentation

Effective planning requires careful consideration of the following elements:

• Occasion: The context of the event.
• Audience: Understanding who you are addressing.
• Purpose: The primary goal of your talk.
• Thesis Statement: The core message you wish to convey.
• Material: The research and content supporting your points.

Types of Presentations

• Informative: Providing facts and data.
• Persuasive: Influencing the audience's viewpoint.
• Motivational: Inspiring action or change.
• Instructive: Teaching a specific skill or process.

Presentation Methods and Techniques

Choose the delivery style that best suits your needs:

• Impromptu or Unscripted: Speaking without prior preparation.
• Memorizing: Learning the content by heart.
• Extemporaneous: Speaking

Frames of Reference

Inertial frame of reference – A frame at rest or moving with constant velocity where Newton’s First Law of Motion holds true and no extra forces are needed.

Non-inertial frame of reference – A frame that is accelerating or rotating where Newton’s laws need fictitious (pseudo) forces to explain motion.

Radiation Laws and Hypotheses

Wien’s displacement law – It states that the wavelength at which a body emits maximum radiation is inversely proportional to its temperature. λmax ∝ 1/T and λmaxT = Constant.

Stefan’s law – It states that the total energy radiated per unit surface area of a black body per unit time is directly proportional to the fourth power of its absolute temperature.

de Broglie hypothesis –... Continue reading "Principles of Modern Physics: Relativity and Quantum Theory" »

The Dual Nature of Technology for Teenagers

Nowadays, technology is very popular among young people, and we use it every day. In my opinion, technology is useful, but it also has some negative effects.

Benefits and Drawbacks of Digital Tools

• Advantages: We can use the internet to study and find information quickly and easily. Also, we can communicate with friends through messages or social media.
• Disadvantages: Technology can be a problem if we use it too much. Many teenagers spend too much time on their phones and do not pay attention to school or family.

In conclusion, I think technology is good for young people, but we should use it in a balanced and responsible way.

The Debate Over School Uniforms

Nowadays, many schools have rules about uniforms,... Continue reading "The Impact of Technology and School Policies on Students" »

The Excretory System

The excretory system is responsible for eliminating waste substances from the body. The main organs involved are:

• The kidneys: They filter the blood and produce urine.
• The lungs: They eliminate carbon dioxide (CO2).
• The liver: It processes bilirubin (a product of red blood cell breakdown) and excretes it with the feces.
• The sweat glands: They produce sweat to regulate body temperature.

The Urinary System

The urinary system is a key part of the excretory system and is made up of:

• Ureters: Tubes that connect the kidneys to the bladder.
• Urinary bladder: A muscular organ that stores urine.
• Urethra: The tube through which urine leaves the body. In men, the urethra is shared by the urinary and reproductive systems, while in women it is

1. The Culture of Being Late

Introduction

In many cultures, punctuality is very important, while in others, being a little late is normal. In Spain, for example, arriving ten or fifteen minutes late to a social event is usually accepted. This raises the question of whether a relaxed attitude towards time is positive or disrespectful.

Body

On the one hand, a flexible attitude towards time can reduce stress. If people did not worry so much about arriving exactly on time, they would probably feel more relaxed in social situations. For instance, when I meet my friends, some of them arrive a bit late, but nobody gets angry because we understand that it is part of our culture.

On the other hand, if someone arrived very late without a good reason, it could... Continue reading "Cultural Perspectives on Punctuality and Teenage Stress" »

Core Concepts of Accrual Accounting

Accrual accounting dictates that we record revenue when we have actually delivered the product or service—not when the customer pays.

Fundamental Accounting Equations

• Balance Sheet: Assets = Liabilities + Equity
• Income Statement: Revenue - Expenses = Net Income

The income statement does not include dividends. A consolidated balance sheet represents the total of the parent company and all its subsidiaries.

Financial vs. Tax Reporting

Firms must maintain at least two sets of books:

• Financial Reporting (GAAP): For investors and external users.
• Tax Reporting (Tax Code): For determining taxable income.

Key Accounting Entries

Accounts Receivable (Asset)

Accounts receivable increase and retained earnings increase (revenue)... Continue reading "Essential Principles of Accrual Accounting and Financial Statements" »

Robinson Crusoe: A Study of Individualism

This fragment belongs to the first chapter of Robinson Crusoe (1719), written by Daniel Defoe. It is considered one of the first modern English novels. The text is a prose narrative, written in the form of an autobiographical account, which gives it realism and credibility.

The novel was published in the early 18th century, during a period of commercial expansion, colonial growth, and the rise of the middle class in England. Although the story begins in 1632, it reflects the values of Defoe’s own time:

• Individualism
• Economic ambition
• Social mobility

These ideas are connected to the Enlightenment, which promoted reason, self-improvement, and personal responsibility. In this fragment, Crusoe introduces his... Continue reading "Literary and Historical Analysis: Defoe and Jefferson" »