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Videos de Conceptos Relacionados

Anatomical Movements00:51

Anatomical Movements

Anatomical movements refer to the various actions or motions that can be performed by the body's joints and muscles. These movements are described using specific terms to provide a standardized way of discussing and understanding the range of motion at different joints.
Here are some common anatomical movements:
Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist, metacarpophalangeal,...
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the drone...
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
Relative Motion Analysis - Acceleration01:10

Relative Motion Analysis - Acceleration

A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...
Equation of Motion for a Rigid Body01:12

Equation of Motion for a Rigid Body

The movement of a rigid object can be understood through the equations that explain both translational and rotational motion about the center of mass of the object, point G. This center of mass is the point where the equation of motion for translational motion comes into play, as per Newton's Second Law.
The combined moments generated about the center of mass of the object are equal to the rate of change of the angular momentum of the body. An external force, when applied at a different point...
Movement Joints in Buildings01:27

Movement Joints in Buildings

Movement joints in buildings are essential design elements that accommodate inevitable motions caused by various factors such as temperature changes, moisture content variations, and structural deflections. These motions, if not considered in design and construction, can lead to unsightly or dangerous damage. Movement joints are incorporated in different forms to manage these stresses and allow materials to move without causing distress.
The simplest type of movement joints, working joints, are...

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A feedback regulatory module formed by LITTLE ZIPPER and HD-ZIPIII genes.

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Video Experimental Relacionado

Updated: May 12, 2026

Movement Retraining using Real-time Feedback of Performance
08:16

Movement Retraining using Real-time Feedback of Performance

Published on: January 17, 2013

Dar sentido al movimiento.

M K Barton1

  • 1Department of Genetics, University of Wisconsin-Madison, Madison, WI 53706, USA. barton@andrew2.stanford.edu

Cell
|October 24, 2001
PubMed
Resumen

Los factores de transcripción de las plantas se mueven entre las células, con la proteína SHORTROOT que señala información posicional entre las capas de células raíz. Este movimiento intercelular es crucial para el desarrollo de las raíces y la comunicación celular.

Área de la Ciencia:

  • Biología vegetal Biología vegetal
  • Biología molecular La biología molecular.
  • Biología del desarrollo Biología del desarrollo.

Sus antecedentes:

  • Los factores de transcripción de las plantas juegan un papel crítico en la regulación de la expresión génica.
  • La comunicación intercelular es esencial para coordinar las actividades celulares durante el desarrollo de la planta.
  • La evidencia sugiere que algunas proteínas vegetales pueden moverse entre las células.

Objetivo del estudio:

  • Para investigar el movimiento de los factores de transcripción de las plantas entre las células.
  • Para aclarar el papel de la proteína SHORTROOT en la señalización intercelular dentro de la raíz de la planta.

Principales métodos:

  • Análisis de la localización y el movimiento de proteínas dentro de los tejidos de las raíces de las plantas.

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  • Utilizando técnicas genéticas y moleculares para estudiar la función de las proteínas.

    • Principales resultados:

    • Se demostró que la proteína SHORTROOT se mueve entre capas celulares adyacentes en la raíz de la planta.
    • Este movimiento facilita la transmisión de información posicional crítica para el desarrollo de las raíces.

    Conclusiones:

    • El movimiento intercelular de los factores de transcripción, ejemplificado por SHORTROOT, es un mecanismo clave para la comunicación de célula a célula en las plantas.
    • Comprender el tráfico de proteínas en las plantas proporciona información sobre los procesos de desarrollo y el patrón de los tejidos.