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Related Concept Videos

Lateralization01:28

Lateralization

1.4K
Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
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Prochirality02:05

Prochirality

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The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
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Stereoisomerism of Cyclic Compounds02:33

Stereoisomerism of Cyclic Compounds

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In this lesson, we delve into the role of ring conformation and its stability, which determines the spatial arrangement and, consequently, the molecular symmetry and stereoisomerism of cyclic compounds. 1,2-Dimethylcyclohexane is used as a case study to evaluate the possible number of stereoisomers. Here, given the multiple (n = 2) chiral centers, there are 2n = 4 possible configurations that lack a plane of symmetry, as the ring skeleton exists in a non-planar chair conformation. In addition,...
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Cerebral Hemispheres01:05

Cerebral Hemispheres

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The human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
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Unsymmetric Bending01:18

Unsymmetric Bending

994
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 those in symmetrical bending, and are essential for designing structures to withstand different loading conditions. In unsymmetrical bending, the neutral axis—where stress is zero—does not necessarily align with the geometric axes of the cross-section. The...
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Chirality02:25

Chirality

24.0K
Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
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Related Experiment Video

Updated: May 6, 2026

Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound fTCD
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Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound fTCD

Published on: September 27, 2010

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Left-right asymmetry: lessons from Cancún.

Rebecca D Burdine1, Tamara Caspary

  • 1Department of Molecular Biology, Princeton University, Washington Road, Princeton, NJ 08544, USA.

Development (Cambridge, England)
|November 7, 2013
PubMed
Summary

This symposium explored how left-right asymmetry develops and its role in health and disease. Experts discussed the latest research on generating and using laterality across diverse species.

Area of Science:

  • Developmental Biology
  • Genetics
  • Physiology

Background:

  • Left-right asymmetry is crucial for organ positioning and function.
  • Disruptions in laterality can lead to congenital diseases.
  • Understanding the genetic and molecular mechanisms is key.

Framework:

  • The symposium focused on the establishment of the left-right axis.
  • Key signaling pathways and molecular players were discussed.
  • Comparative approaches across different animal models were highlighted.

Implementation:

  • Experts presented recent findings on gene regulation and cellular processes.
  • Novel techniques for studying laterality were shared.
  • Discussions covered both embryonic development and disease states.
Keywords:
AsymmetryCiliaLeft-right asymmetryLeft-right axisMorphogenesisNodal

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Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury
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Analysis of Gene Function and Visualization of Cilia-Generated Fluid Flow in Kupffer's Vesicle
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Related Experiment Videos

Last Updated: May 6, 2026

Assessment of Cerebral Lateralization in Children using Functional Transcranial Doppler Ultrasound fTCD
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Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury
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Analysis of Gene Function and Visualization of Cilia-Generated Fluid Flow in Kupffer's Vesicle
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Analysis of Gene Function and Visualization of Cilia-Generated Fluid Flow in Kupffer's Vesicle

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Implications:

  • Advances deepen our understanding of fundamental biological processes.
  • Insights may lead to new diagnostic and therapeutic strategies for laterality disorders.
  • This research has broad relevance for evolutionary and developmental biology.