Notes, summaries, assignments, exams, and problems for Vocational training

Morphological Units

Morphology requires identifying and describing extra units, which are the PABRA, root, base, and the morpheme.

• Word: Minimal free form. You can change its position in a sentence (but you can change the article by the noun). Its features are:
  • Separability: i.e., between two units, you can add others.
  • Potential pause: prior or posterior that delimits the unit.
  • If bounded by several morphemes, they are inseparable and have a fixed order.
• Root: Is the basic segment or constant in any significant word. It results from removing all morphemes that accompany it.
• Theme: Part of the underlying word for flexion, remaining stable in all the reflexive forms. It is the result of diminishing grammatical accidents. It can be simple or complex.

Prereality in Spanish Literature

Prereality began in 1849 with the publication of La Gaviota by Fernán Caballero (1796-1877), pseudonym of Cecilia Böhl de Faber.

Prereality novels have a costumbrista tone and a moralizing purpose, as shown in La Gaviota, which recounts the eventful love life of a young woman. She symbolizes the protagonist's transformation within the society of the time and vindicates traditional values. Prereality authors did not delve deeply into psychological analysis or social criticism; instead, they preferred colorful and picturesque detail and the defense of traditional values.

The chief representative of the Prereality current is Pedro Antonio de Alarcón (1833-1891), author of short stories and novels. In his most famous... Continue reading "Spanish Literature: Prereality and Realism" »

Fabrication Painting: Cleaning and Degreasing

The areas of the car body tend to accumulate fat and dust, which must be removed before painting to ensure the product's adherence to the wing area.

Phosphating

This is a surface treatment that converts the metal. The metal is treated with a layer of microcrystalline zinc phosphate. The bodywork is immersed in a bath of composite with phosphoric acid, zinc phosphate additives, and accelerators. This provides a more uniform coating and better penetration into the hollow parts than spraying.

Responsibilities

After the phosphating process, the surface is washed with a passivating aqueous solution, which improves grip and anticorrosion protection.

Drying

This is performed with hot air to harden the layers... Continue reading "Automotive Body Painting: Processes and Techniques" »

Prions and Disease Transmission

Prions are viral proteins that cause diseases. Direct transmission is not common, but the disease can appear several years after exposure to surgical instruments, needles, or other objects used on infected corpses. Therefore, it is crucial to destroy these instruments. STH or GH, this hormone found in the pituitary of dead bodies, requires disinfection of equipment to prevent contamination of the conjunctiva and injured nerve or blood tissue.

Tuberculosis Transmission and Disinfection

Tuberculosis is transmitted through inhalation. When handling fresh infected lungs, they should be perfused with sliced formalin before using routine disinfectants. This increases the time for disinfestation.

Other Infections and Handling

Psychoanalysis explores the development of personality from the perspective of individual integrity.

Sigmund Freud's Personality Model

Freud's model helps understand the psyche. The topographic model indicates three levels of consciousness:

• Conscious: Perceptions, thoughts, and memories formed at any given time.
• Preconscious: Memories not currently in awareness but readily accessible.
• Unconscious: Memories and intentions largely inaccessible to consciousness, influencing behavior through experiences that create tension.

The structural model describes the interplay between biological drives and social desires, resulting in internal conflict. It comprises three areas:

• Id: The primitive, instinct-driven part of the personality, operating unconsciously

What is a Car Battery?

The battery is a crucial power supply component in a vehicle. It provides the necessary electrical current to the starter motor, enabling the engine to start. Think of it like a water pump in a water circuit: the pump forces water through pipes to consumers. When the pump sends more water than is consumed, the excess goes into a reservoir, which can then supply consumers. Similarly, a battery provides a consistent power supply, preventing shocks or fluctuations.

Most cars use lead-acid batteries, which convert chemical energy into electrical energy through a process called electrolysis.

Electrolysis Explained

If you immerse two electrodes in distilled water and connect them to a power source with a lamp, the lamp won't light,... Continue reading "Car Batteries: Structure, Function, and Capacity" »

Collective Representation of Associations and Unions

Unions are non-profit associations of employees whose primary purpose is to achieve the economic and social progress of their members. This is accomplished through maintaining or improving their working conditions. They have standing, as maintained by Kapteyn, with varied partners.

Nervous System Anatomy

The nervous system is a complex network responsible for coordinating actions and transmitting signals throughout the body. It can be broadly divided into several key components:

Somatic Nervous System

The Somatic Nervous System is composed of mixed nerves, containing both sensory and motor axons. These nerves innervate somatic effectors, primarily skeletal muscles.

Central Nervous System (CNS)

The Central Nervous System has a sensory or afferent division that brings information from sensory receptors in the periphery. This includes visual, auditory, somatosensory, and chemoreceptor information. This information is transmitted to higher levels, reaching the motor cortex. The motor or efferent division carries information towards... Continue reading "Nervous System Anatomy: Somatic, Central, and Spinal Components" »

Classification of Optical Methods

Non-Spectroscopic Techniques

• Refractometry
• Polarimetry

Spectroscopic Techniques

• UV-Vis Spectrophotometry
• Atomic Absorption
• Flame Photometry

Classification of Spectroscopic Methods

Spectroscopic methods are categorized by absorption or emission.

Absorptiometry

This electromagnetic method uses light, which has both corpuscular and wave-like characteristics. Light is broken down into different wavelengths, arranged in what is called the electromagnetic spectrum.

Wave Constitution

A wave consists of two fields—electric and magnetic—perpendicularly intersecting each other and propagating in the direction of the wave.

Speed of Wave Propagation

In a vacuum, the speed of light (c) is 3x10¹⁰ cm/sec. This speed can change when... Continue reading "Spectroscopic Techniques in Optical Methods: A Comprehensive Guide" »