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Transformation01:26

Transformation

Microbial communities are dynamic environments where cell lysis releases free DNA into the surroundings. Other cells can take up this extracellular DNA through a process known as transformation.When a cell incorporates this foreign DNA into its genome, resulting in genetic modification, the process is known as transformation. Cells capable of this process are termed competent. Competence can be natural, as observed in certain bacteria and archaea, or artificially induced in the...
The First Law of Thermodynamics01:13

The First Law of Thermodynamics

The first law of thermodynamics deals with the total amount of energy in the universe. It states that this total amount of energy is constant. In other words, there has always been, and always will be, exactly the same amount of energy in the universe. Energy exists in many different forms. According to the first law of thermodynamics, energy may transfer from place to place or transform into different forms, but it cannot be created or destroyed. The transfers and transformations of energy...
Forced Transdifferentiation01:28

Forced Transdifferentiation

Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
Artificial transdifferentiation occurs...
Information Processing Approach01:30

Information Processing Approach

The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is also...
Transformations of Functions III01:20

Transformations of Functions III

Transformations modify the graphical representation of a function without changing its fundamental form. One common transformation is reflection, which flips the graph across a designated axis. When the vertical coordinates of all points are multiplied by the negative one, the entire graph is mirrored over the horizontal axis. This transformation reverses the vertical orientation of peaks and troughs, akin to signal inversion in electrical systems, where a waveform is flipped, but the timing of...
Social Foundations of Self IV: Self in Digital Communication01:30

Social Foundations of Self IV: Self in Digital Communication

Since the early 2000s, computer-mediated communication (CMC) has grown rapidly, playing a crucial role in self-development. A key distinction between CMC and real-life interactions is the lack of a physically present partner. This absence makes non-verbal cues such as facial expressions, body language, and paralinguistic signals unavailable in CMC platforms like email, instant messaging, or social media. The lack of these cues can create ambiguity and complicate how feedback is interpreted.The...

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Video Experimental Relacionado

Updated: Jul 12, 2026

Morphology-Based Distinction Between Healthy and Pathological Cells Utilizing Fourier Transforms and Self-Organizing Maps
08:59

Morphology-Based Distinction Between Healthy and Pathological Cells Utilizing Fourier Transforms and Self-Organizing Maps

Published on: October 28, 2018

La autoorganización, la transformación y la información.

H T Odum

    Science (New York, N.Y.)
    |November 25, 1988
    PubMed
    Resumen

    Los ecosistemas utilizan flujos de energía pulsantes, lo que introduce la transformación para medir los tipos de energía. Esta nueva métrica energética ofrece un sistema de valores basado científicamente para diversas aplicaciones, desde la economía hasta la política ambiental.

    Área de la Ciencia:

    • Ecología Ecología Ecología.
    • Ciencia de los sistemas Ciencia de los sistemas Ciencia de los sistemas.
    • Energética Energética es la energía.

    Sus antecedentes:

    • Los ecosistemas y los sistemas autoorganizados exhiben patrones de uso de energía caracterizados por la producción y el consumo pulsantes.
    • La energética de la cadena alimentaria ecológica ofrece información sobre la redefinición del trabajo y la medición de la energía.
    • Se propone una nueva cantidad, la transformación, para distinguir y escalar diferentes tipos de energía.

    Objetivo del estudio:

    • Introducir y definir la transformación como una nueva cantidad científica para la escala de energía.
    • Para explorar la aplicación de la transformación en la comprensión de las jerarquías universales, incluida la información.
    • Establecer un sistema de valores basado científicamente utilizando la transformación para aplicaciones sociales y económicas.

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    Principales métodos:

    • Análisis de la energética de la cadena alimentaria ecológica.
    • Definición y cuantificación de la transformación (energía de un tipo requerida por unidad de otro).
    • Cálculo de las transformaciones solares en toda la biosfera, desde la insolación solar hasta la información.

    Principales resultados:

    • La transformación proporciona un factor de escala de energía aplicable a las jerarquías universales.
    • Las transformaciones solares en la biosfera van desde 1 (insolación solar) hasta billones (información compartida).
    • Multiplicando las contribuciones de los recursos por sus transformidades se obtiene un valor científicamente fundamentado.

    Conclusiones:

    • Transformity ofrece un nuevo enfoque para cuantificar y comparar diversas formas de energía.
    • La métrica de la transformación se puede aplicar para establecer un sistema de valores basado científicamente.
    • Este sistema de valores tiene implicaciones para los servicios humanos, la mitigación ambiental, el comercio, la política y la vitalidad económica.