Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Classifying Matter by State02:49

Classifying Matter by State

102.6K
Chemistry is the study of matter and the changes it undergoes. Matter is anything that has mass and occupies space. Matter is all around us; the air, water, soil, mountains, even our bodies are all examples of matter. Matter is divided into three states — solid, liquid, and gas — that are commonly found on earth. The fourth state of matter, plasma, occurs naturally in the interiors of stars. 
102.6K
Physical and Chemical Properties of Matter02:57

Physical and Chemical Properties of Matter

165.5K
The characteristics that enable us to distinguish one substance from another are called properties.
165.5K
Classifying Matter by Composition03:35

Classifying Matter by Composition

89.7K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures. 
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated. 
A mixture is composed of two or...
89.7K
The Atomic Theory of Matter02:59

The Atomic Theory of Matter

127.0K
The earliest recorded discussion of the basic structure of matter comes from ancient Greek philosophers. Leucippus and Democritus argued that all matter was composed of small, finite particles that they called atomos, meaning “indivisible.” Later, Aristotle and others came to the conclusion that matter consisted of various combinations of the four “elements” — fire, earth, air, and water — and could be infinitely divided. Interestingly, these philosophers...
127.0K
States of Matter01:20

States of Matter

2.7K
Solids, liquids, and gases are the three states of matter commonly found on Earth. A solid is rigid and possesses a definite shape. A liquid flows and takes the shape of its container, except it forms a flat or slightly curved upper surface when acted upon by gravity. Both liquid and solid samples have volumes nearly independent of pressure. A gas takes both the shape and volume of its container.
Scientists have discovered a fourth state of matter, plasma, that occurs naturally in the interiors...
2.7K
What is Matter?01:13

What is Matter?

15.0K
The substance of the universe—from a grain of sand to a star—is called matter. Scientists define matter as anything that occupies space and has mass. An object’s mass and its weight are related concepts, but not quite the same. An object’s mass is the amount of matter contained in the object and is the same whether that object is on Earth or in the zero-gravity environment of outer space. An object’s weight, on the other hand, is its mass as affected by the pull of...
15.0K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Spectral Insights into Active Matter: Exceptional Points and the Mathieu Equation.

Entropy (Basel, Switzerland)·2026
Same author

Nonreciprocal antialigning active mixtures: Deriving the exact Boltzmann collision operator.

Physical review. E·2025
Same author

Emergent flocking in mixtures of antialigning self-propelled particles.

Physical review. E·2025
Same author

Kinetic Theory of Self-Propelled Particles with Nematic Alignment.

Entropy (Basel, Switzerland)·2025
Same author

The Impact of Membrane Protein Diffusion on GPCR Signaling.

Cells·2022
Same author

Phases and homogeneous ordered states in alignment-based self-propelled particle models.

Physical review. E·2021

Video Experimental Relacionado

Updated: Jan 22, 2026

Measuring Microbial Mutation Rates with the Fluctuation Assay
07:44

Measuring Microbial Mutation Rates with the Fluctuation Assay

Published on: November 28, 2019

24.8K

Reducción de fluctuaciones de densidad mediante anti-alineación en materia activa

Horst-Holger Boltz1, Thomas Ihle1

  • 1Greifswald University, Institute for Physics, 17489 Greifswald, Germany.

Physical review. E
|January 21, 2026
PubMed
Resumen

Las correlaciones de largo alcance en la materia activa, incluso sin orden global, reducen las fluctuaciones de densidad. Este estudio demuestra analítica y numéricamente la reducción de fluctuaciones y la emergencia de hiperuniformidad en sistemas de partículas autopulsadas.

Palabras clave:
materia activafluctuaciones de densidadhiperuniformidadcorrelaciones de largo alcancepartículas autopulsadasruido imaginariomecánica estadísticafísica de materia blandasistemas complejos

Más Videos Relacionados

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

3.5K
Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
05:59

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity

Published on: March 7, 2019

7.1K

Videos de Experimentos Relacionados

Last Updated: Jan 22, 2026

Measuring Microbial Mutation Rates with the Fluctuation Assay
07:44

Measuring Microbial Mutation Rates with the Fluctuation Assay

Published on: November 28, 2019

24.8K
Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

3.5K
Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
05:59

Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity

Published on: March 7, 2019

7.1K

Área de la Ciencia:

  • Mecánica Estadística
  • Física de Materia Blanda
  • Sistemas Complejos

Sus antecedentes:

  • Los sistemas de materia activa exhiben comportamientos complejos debido a partículas autopulsadas.
  • La comprensión de las correlaciones de largo alcance es crucial para caracterizar estos sistemas, incluso sin orden global o interacciones estéricas.

Objetivo del estudio:

  • Demostrar la reducción de las fluctuaciones de densidad de largo alcance en sistemas de materia activa.
  • Investigar analítica y numéricamente la emergencia de la hiperuniformidad y su relación con las correlaciones.

Principales métodos:

  • Derivación analítica utilizando una representación de Poisson para un proceso de red 1D.
  • Derivación de hidrodinámica fluctuante para campos de Poisson.
  • Corroboración numérica utilizando modelos de tipo Vicsek fuera de la red con interacciones anti-alineadas.

Principales resultados:

  • Demostración analítica de la reducción de fluctuaciones de densidad de largo alcance.
  • Emergencia de ruido imaginario que indica fluctuaciones de número no poissonianas.
  • Observación de aparente hiperuniformidad no universal en simulaciones numéricas, interpretada como una reducción de ley de potencias.

Conclusiones:

  • Las correlaciones de largo alcance juegan un papel importante en la materia activa, lo que lleva a una reducción de las fluctuaciones de densidad.
  • Los hallazgos sugieren una conexión entre la reducción de fluctuaciones, las estadísticas no poissonianas y la hiperuniformidad en estos sistemas.