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When analyzing a beam subjected to various loads, it is crucial to understand the internal forces and moments generated within the structure. These internal forces can be broadly classified into normal forces, shear forces, and bending moments. To determine these forces and moments, we use the method of sections and apply a specific sign convention based on their direction and the side of the section being analyzed.
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Related Experiment Video

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Author Spotlight: Deciphering the Cognitive and Neural Mechanisms of Gesture in Communication
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Iconic enrichments: Signs vs. gestures.

Philippe Schlenker1

  • 1Institut Jean-Nicod (CNRS),F-75005,Paris,France;Department of Linguistics,New York University,New York,NY 10003.philippe.schlenker@gmail.com.

The Behavioral and Brain Sciences
|January 19, 2018
PubMed
Summary

Sign language iconicity should be compared to speech plus gesture, not speech alone. Iconic enrichments in sign language can be at-issue, unlike typical gestures, requiring further research into projection properties.

Area of Science:

  • Linguistics
  • Psycholinguistics
  • Cognitive Science

Background:

  • Sign language iconicity is a key area of semantic research.
  • Previous work suggests comparing sign language to speech plus gesture, not speech alone.
  • The expressive resources of sign language and speech-plus-gesture require further investigation.

Purpose of the Study:

  • To investigate whether sign language with iconicity and speech-plus-gesture share the same expressive resources.
  • To analyze the 'at-issue' status of iconic enrichments in sign language versus gestural enrichments in speech.

Main Methods:

  • Comparative semantic analysis of sign language and spoken language with gestures.
  • Examination of "projection" properties of iconic and gestural enrichments.

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Main Results:

  • Gestural enrichments in speech are typically not "at-issue".
  • Iconic enrichments in sign language can frequently be "at-issue".

Conclusions:

  • Sign language iconicity and speech-plus-gesture may not possess identical expressive resources.
  • Future research should focus on the "projection" properties of iconic enrichments in sign language and gestural enrichments in speech.