Ortega y Gasset’s Philosophy: Relevance in Modern Times

The existence of a thinker is always present and patent. Given that José Ortega y Gasset died in 1955, we can say that his thinking is still fully relevant today. The late twentieth and early twenty-first centuries have been distinguished, among other things, by a concern for the vital or existential, and hence the influence of Ortega is crucial. Just walk through a bookstore or view catalogs specializing in publications to check how there is a huge interest in the issues of daily life, from self-

Read More

The Origin and Evolution of Life: From Bacteria to Humans

The Living Planet: From Bacteria to Humans

The Origin of Life

  • A creature performs three vital functions (nutrition, relationships, and reproduction) and consists of one or more cells.
  • The chemical elements that constitute living things are mainly C, H, O, and N.
  • Other elements are present in very small quantities but are essential for smooth operation (iron, iodine, etc.).

What Are the Theories About the Origin of Life?

  • Spontaneous generation: For centuries, there was a belief that life was created from
Read More

Properties and Extraction of Non-Ferrous Metals

Non-Ferrous Metals: Properties and Uses

There are also other non-ferrous metals.

1. Chrome

Chrome has a steely gray color, is very hard, and possesses great sharpness. It resists oxidation and corrosion very well. It is used as polished chrome for decorative objects, as hard chrome for the manufacture of stainless steels and tool steels.

  • Density: 6.8 kg/dm³
  • Melting point: 1900 °C
  • Resistivity: 1.1 ohm ⋅ mm²/m

2. Nickel

Nickel has a bright silver color and can be polished very easily. It is magnetic

Read More

Musical Textures and History: From Gregorian Chants to Renaissance Composers

Musical Textures: Monody, Polyphony, and Homophony

Monody: The simplest texture, featuring a single melodic line without accompaniment.

Polyphony: This texture results from the simultaneous combination of two or more melodies.

Homophony or Chordal Texture: Music is developed vertically, meaning the voices are aligned. The four notes of the chord are distributed among the four voices, which have the same rhythm. The text becomes comprehensible to the listener because all voices simultaneously sing the

Read More

FIR Filter Design and DFT/IDFT Computation Techniques

Experiment 11: FIR Filter Design Using Frequency Sampling

11.1: Low Pass Filter Design and Frequency Response

Design a Low Pass Filter as per the given specifications and plot the Frequency Response.


1. clc;
2. close;
3. clear;
4. delta1=0.1; // Attenuation
5. delta2=0.1;
6. fl=400; // Low Cut-Off Frequency
7. fh=500; // High Cut-Off Frequency
8. fs=8000; // Sampling Frequency
9. A=-20*log10(min(delta1:delta2));
10. w1=2*%pi*fl/fs;
11. w2=2*%pi*fh/fs;
12. temp=1+((A-8)/(2.285*((2*3.14*fh/fs)-(2*3.
Read More

Economic and Political Impacts of World War I and the Interwar Period

Economic and Political Consequences of the First World War (1914-1918)

The consequences of World War I were very significant in terms of direct loss. Population losses during the war and the following years were estimated in the millions. In proportional terms, the greatest losses were concentrated among the male working population. Core capital losses were severe due to direct damage (total war), depreciation, and lack of investment, especially in countries that were fighting. The loss of foreign

Read More

Key Concepts in Statistics: From Distributions to Data Analysis

Binomial Distribution

Binomial distribution is a common discrete distribution used in statistics, as opposed to a continuous distribution, such as normal distribution. This is because binomial distribution only counts two states, typically represented as 1 (for a success) or 0 (for a failure), given a number of trials in the data. Binomial distribution thus represents the probability for x successes in n trials, given a success probability p for each trial. The underlying assumptions of binomial

Read More

Public Finance Law: National and International Principles

National and International Law

International Law refers to the rules governing the financial relations between two or more sovereign states or between a sovereign state and a person associated with several sovereign states. National Law refers to the rules governing financial relations between a state and the people subject to it. It can be classified as constitutional or ordinary, referring to the standards set forth in the constitution or in common law.

Public Finance Law can be divided into multiple

Read More

India’s Independence Movement and Economic Sectors: A Historical Overview

Khilafat Movement

  1. While the Rowlatt Satyagraha was a widespread movement, it was still limited mostly to cities and towns.
  2. Mahatma Gandhi felt the need to launch a more broad-based movement in India.
  3. He was certain that no such movement could be organized without bringing Hindus and Muslims closer together.
  4. The First World War ended with the defeat of Ottoman Turkey. Rumors circulated that a harsh peace treaty would be imposed on the Ottoman Emperor, the spiritual head (Khalifa) of the Islamic world.
Read More

Radio: History, Evolution, and Impact on Music

Radio

Etymology: From Latin radius, meaning “ray of light.” In the eighteenth century, it was applied to the radiation (emission) of the element radium.

In 1888, the German physicist Heinrich Hertz discovered radio waves. Hertz also gave his name to the physical unit of vibrations per second (Hertz), which determines the pitch of sounds and the wavelength. Between 1895 and 1896, the Italian physicist Guglielmo Marconi developed a method for producing and receiving electromagnetic waves. In 1898, he

Read More