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Related Concept Videos

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Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens.
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
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Internal and External Forces01:12

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Newton's first law states that a net external force causes a change in motion. External forces act on an object or system, originating outside of the object or system. In contrast, internal forces originate inside the system of interest and do not lead to any acceleration. In simpler words, internal forces are forces that act on one part of an object and are exerted by another part of the same object. External forces are forces that act on an object due to some other object. Therefore, when...
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Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
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Fundamental Attribution Error01:14

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According to some social psychologists, people tend to overemphasize internal factors as explanations—or attributions—for the behavior of other people. They tend to assume that the behavior of another person is a trait of that person, and to underestimate the power of the situation on the behavior of others. They tend to fail to recognize when the behavior of another is due to situational variables, and thus to the person’s state. This erroneous assumption is...
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Equilibrium refers to a state where a rigid body is not subjected to any translational or rotational motion. This state is achieved when the force and couple acting on a rigid body equal zero. When the system of external forces results in a net effect equivalent to zero, the rigid body is considered to be in equilibrium.
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The oral stage is the initial phase of Sigmund Freud's theory of psychosexual development, occurring from birth to approximately 12 to 18 months. During this period, the infant's mouth serves as the primary source of pleasure, with actions such as sucking, chewing, biting, and drinking playing a crucial role in reducing tension. These activities are essential not only for nourishment but also for the infant's psychological and emotional satisfaction.
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Related Experiment Video

Updated: May 6, 2026

Iris Fixation via External Pentagram Suturing
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[The externe fixations].

S Terver1, E Toledano, J L Bremont

  • 1Service d'Orthopédie - Traumatologie II, 2HE, Hôpital G. Montpied, BP 69, F-63003, Clermont-Ferrand Cedex 1, France.

European Journal of Orthopaedic Surgery & Traumatology : Orthopedie Traumatologie
|November 7, 2013
PubMed
Summary
This summary is machine-generated.

External fixation offers key benefits for open leg fractures, including fracture site stabilization and secondary reduction. This method aids bone healing and joint mobility, improving patient outcomes.

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Area of Science:

  • Orthopedic surgery
  • Traumatology
  • Biomechanical engineering

Context:

  • Open leg fractures present complex challenges in treatment.
  • Effective management requires fracture stabilization, infection prevention, and functional recovery.
  • Traditional methods may compromise adjacent joint mobility and soft tissue coverage.

Purpose:

  • To delineate the advantages of external fixation in managing open leg fractures.
  • To emphasize the principles of achieving optimal stability and bone healing.
  • To discuss the technique's role in soft tissue management and joint preservation.

Summary:

  • External fixation provides fracture site stabilization through transfixion pins in multiple planes.
  • It allows for secondary reduction and promotes consolidation via compression, distraction, or dynamization (Ilizarov method).
  • The technique facilitates joint mobility and aids in achieving soft tissue coverage, though pin track management is crucial.

Impact:

  • Optimized fracture healing and reduced complication rates in open leg fractures.
  • Improved functional outcomes through early joint mobilization and preserved muscle function.
  • Enhanced soft tissue management strategies in complex fracture scenarios.