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Kidney and Urinary Tract Conditions

Renal Failure Explained

Renal failure signifies insufficient filtration of blood at the Malpighian glomeruli. This leads to reduced urine production and inadequate elimination of excretory substances.

Symptoms include nausea, vomiting, seizures, and fainting. If untreated, it can lead to death.

Common causes include:

• Renal injuries
• Deficient blood pressure in the kidneys
• Urine retention due to an obstruction in the urinary tract

Nephritis: Kidney Inflammation

Nephritis is kidney inflammation resulting from infectious or non-infectious causes. Symptoms typically include pain, goosebumps, and fever.

Cystitis: Bladder Inflammation

Cystitis refers to inflammation of the bladder, generally caused by an infection. It results... Continue reading "Human Body Systems: Renal, Reproductive, and Cellular Functions" »

Imagen Escaleras

• Promulgation of the Constitution
• Recognize individual rights like equality before the law
• Established national sovereignty and the separation of powers
• Cortes of Cadiz
• Liberal system

Ej 11: Industrial Revolution

• Around 1830
• Two main characteristics: slow and partial
• Five causes of industrialization: low demand for industrial articles, lack of entrepreneurial spirit among the bourgeoisie, technological gap, shortage of raw materials, political instability
• Basic industrial sectors: mining, iron and steel industry, textile sector
• Concentrated in Catalonia: textile sector
• Transport: thanks to the law of highways
• First railways: Barcelona-Mataro, Madrid-Aranjuez
• Scarce due to reduced international demand
• Badly affected by the loss of American

• Thermal energy is the energy that is exchanged between two bodies or systems of matter that have different temperatures. Thermal energy is also exchanged when a body changes from one physical state to another.

• Kinetic energy (Ec) is the energy of a body in motion. It depends on the mass and the speed of the body.

• Potential energy (Ep) is the energy of a body determined by its position. It depends on the body’s mass and position

• Gravitational Potential Energy
• Elastic potential energy

• Electrical energy is energy produced by the movement of charged particles (electrons), due to a potential difference.

• Radiant energy is energy carried by the electromagnetic waves, such as light, radio waves, microwaves, X-ray or γ rays. It’s called radiation. 

• Chemical

Martin Luther King Jr.

Economic Context

During the Great Depression of the 1930s, the USA faced economic hardship. People lost their jobs, struggled to afford food, and experienced widespread poverty.

Family and Career

Following in the footsteps of his grandfather and father, Martin Luther King Jr. became a church pastor.

Inspiration from Mahatma Gandhi

Mahatma Gandhi's philosophy of nonviolent resistance in the fight for civil rights deeply inspired Martin Luther King Jr.

The Montgomery City Code and Rosa Parks

Montgomery City Code

Buses in Montgomery were segregated, with separate sections for white and black people. Black people were required to give up their seats to white people, even if it meant standing.

Rosa Parks' Act of Defiance

Rosa Parks was... Continue reading "Civil Rights Pioneers: Martin Luther King Jr. and Emmeline Pankhurst" »

U11: Count on

to be confident that you can depend on someone. Fall out: to argue with someone and stop being friendly with them. Finish with: to end a romantic relationship with someone. go off: to stop linking or being interested in someone or something. Hit it off: people hit it off, they like each other and become friendly immediately. let down: to disappoint someone by failing to do what you agreed to do or were expected to do. look down on: to think that you are better than someone. look up to: to admire and respect someone. stick together: people stick together, they support and help each other. take after: to be similar to an older member of you family in appearance or character. Compound adjectives: Badly behaved: behaving in a way that... Continue reading "English Phrasal Verbs and Compound Adjectives" »

What is economic activity?

Economic activities are all the processes used to obtain the goods and services that people need. The three phases of economic activity are:

• Production → is all the goods and services which are created as a result of an economic activity.
• Distribution → is the process of moving goods and services from the place of production to the consumer.
• Consumption → is all the goods and services that people buy to satisfy their wants and needs.

History of payment

• Barter → direct exchange of goods
• Natural coins → valuable natural items, with an agreed value like shells, cocoa, salt, furs
• Metal coins → the first metal coins were made in Lidia (present-day Turkey) in the 7th century BC
• Paper money → notes first appeared in

Projecting Points and Shapes

Projecting points onto a plane involves rays passing through the points and intersecting the plane. These intersections are called projections. Projecting a shape involves projecting its vertices.

Projection Systems

There are two main systems of projection:

Perspective Projection

When the rays originate from a single point, the system is called perspective projection. The resulting shape is proportionally smaller or larger.

Parallel Projection

When the rays are parallel, the system is called parallel projection. The resulting shape is congruent (same shape and size). There are two variations:

1. Oblique Projection: The rays are oblique to the projection plane.

2. Orthographic Projection: The rays are perpendicular to the projection

The Urbanization Process

The urbanization process consists of concentrating population and the most dynamic economic and cultural activities within cities.

Antiquity

In Europe, the urbanization process began around the third millennium BC with the creation of cities in the Eastern Mediterranean by trading civilizations like Crete. However, the definitive push toward urbanization came in the 8th century BC, first with the Greeks and then with Roman rule, which spread cities all across the empire.

In Spain, the first cities (Cádiz and Ampurias) emerged in the 8th century BC thanks to colonization by Mediterranean peoples (Phoenicians and Greeks). The number of cities increased during the period of Roman rule, when numerous cities were founded, such... Continue reading "The Urbanization Process: From Ancient Cities to Modern Metropolises" »