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Related Concept Videos

Bending and Torsional Moments01:20

Bending and Torsional Moments

Bending and torsional moments are two fundamental concepts in structural engineering. They play an important role in understanding the behavior of materials and structures under different loading conditions.
The reaction developed in a structural element when subjected to an external force causes the element to bend. When a structural element bends upwards, it creates compressive normal forces on the top and tensile normal forces on the bottom, resulting in a couple that determines the bending...
Torsion in Vector Calculus01:20

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A toy train ascending a winding track that curves and tilts offers an intuitive view of torsion, a key geometric concept in the study of space curves. While curvature measures how sharply a path bends, torsion captures how the path twists out of the plane of bending. This twisting behavior is crucial in understanding three-dimensional motion and is precisely described using the Frenet–Serret framework.At each point along a space curve, the Frenet–Serret frame consists of three orthogonal unit...
Torsion of Noncircular Members01:16

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Circular shafts undergoing torsional stress maintain their cross-sectional integrity due to their axisymmetric nature. This symmetry ensures an even distribution of stress, allowing the shaft to withstand torsion without distorting. In contrast, square bars, lacking this axial symmetry, experience significant distortion across their cross-sections when subjected to torsion, with the exception of along their diagonals and at lines connecting midpoints. A detailed examination of a cubic element...
Torsional Pendulum01:09

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Torque Free Motion01:15

Torque Free Motion

The torque-free motion refers to the movement of a rigid body in space when no external torques are acting upon it. This type of motion can be observed in environments where there are no external forces or frictions, like in outer space. For example, a rotation of Mars in space is a torque-free motion. Mars is an axisymmetric object, meaning it has an axis of symmetry along which it rotates, designated as the z-axis. The rotating frame of reference is defined such that the center of mass of...
General Case of Eccentric Axial Loading01:12

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Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from symmetrical bending, which are essential for designing structures to withstand different loading conditions.
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Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane
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Omental torsion.

Paresh Jain1, Sheri Chhabra, Ketan Parikh

  • 1Department of General Surgery, Jaslok Hospital and Research Centre, Mumbai, India.

Journal of Indian Association of Pediatric Surgeons
|December 17, 2009
PubMed
Summary
This summary is machine-generated.

Omental torsion, a rare cause of abdominal pain, can mimic appendicitis. This case highlights computed tomography findings and laparoscopic confirmation in an 11-year-old boy.

Keywords:
Acute abdomenappendicitisomental torsion

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Area of Science:

  • Gastroenterology
  • Pediatric Surgery
  • Radiology

Background:

  • Omental torsion is an uncommon surgical emergency.
  • It presents with acute abdominal pain, often mimicking appendicitis.
  • Early diagnosis is crucial for effective management.

Observation:

  • An 11-year-old boy presented with symptoms typical of appendicitis.
  • Computed tomography (CT) scan of the abdomen indicated omental torsion.
  • Clinical presentation strongly suggested appendicitis.

Findings:

  • Diagnostic laparoscopy confirmed torsion of a segment of the greater omentum.
  • CT findings were highly suggestive of this rare condition.
  • The patient's symptoms were attributed to the omental torsion.

Implications:

  • This case underscores the importance of considering omental torsion in the differential diagnosis of acute abdominal pain in children.
  • CT imaging plays a vital role in preoperative diagnosis.
  • Laparoscopic surgery is effective for confirming and treating omental torsion.