Blog

What is DKIM in emails and why is it important?

DKIM: verified and reliable emails with digital signature to enhance security and domain reputation.

DomainKeys Identified Mail (DKIM) is an email authentication mechanism that uses digital signatures to verify the authenticity and integrity of messages. When you send an email, the sending server digitally signs it with a private key. This signature includes a…

WordPress Child Theme: practical guide to customize without losing essence

Child Theme WP - deGalaLab

A WordPress Child Theme is the safest and most flexible way to customize your site. By inheriting design and functionality from the parent theme, it keeps your core stable while giving you creative freedom to add custom CSS, functions, and templates. This step-by-step guide explains how to create and install a child theme, why it matters, and how it helps preserve your work while boosting site performance and SEO.

Foundations of Semantic Web Technologies

Minimalist illustration of a book combined with a neural network diagram, symbolising the foundations of Semantic Web Technologies, in DeGalaLab corporate colours (fuchsia, blue, grey) on a white background.

The book explains the formal and practical foundations of the Semantic Web, that is, how to represent and manage knowledge on the web in a way that machines can understand and reason with.

Artificial Neural Networks

Diagram illustrating how artificial neural networks mimic the human brain

Discover how artificial neural networks work in this introductory course on artificial intelligence. Learn how they mimic human cognitive functions and explore both simple networks and more advanced architectures that power modern AI.

SLE – Rank of a Matrix and Consistency of Systems

In a matrix, the rank is always ≤ the minimum of (m, n),where m, n indicate the dimensions of the matrix (m × n). Types of systems SCD = Sistema Compatible Determinat (una solució)→ Consistent System with a Unique Solution…

Direction Vector

A direction vector is a vector that indicates the direction of a line or a plane in a given space. It does not fix a specific point in space, but only describes the direction in which a line or a…

Generative Grammar and the Faculty of Language: Discoveries, Questions, and Challenges

Chomsky et al. examine the foundations of generative grammar and the human language faculty. The article highlights core properties such as discrete infinity and displacement, explores operations like MERGE and AGREE, and analyses cognitive interfaces. Despite progress, unresolved questions remain, opening new directions for future linguistic research.