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Related Concept Videos

Communication01:03

Communication

8.7K
Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
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Communication01:28

Communication

9.8K
Sharing information, concepts, and emotions to foster mutual understanding is communication. The sender, recipient, and transaction must be considered in this manner. The sender is the person who shares the message, the recipient is the person who receives and understands the message, and the transaction is the method used to deliver the message and the variables that affect the communication's context and surroundings. The nurse-client connection is built on therapeutic communication.
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Shock Waves01:16

Shock Waves

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While deriving the Doppler formula for the observed frequency of a sound wave, it is assumed that the speed of sound in the medium is greater than the source's speed through it. When this condition is breached, a shock wave occurs.
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
2.6K
Neuronal Communication01:28

Neuronal Communication

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Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
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Therapeutic Communication01:30

Therapeutic Communication

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Communication is a lifelong learning process. Through therapeutic communication, nurses can collect relevant assessment data, provide education and counseling, and interact during nursing interventions. Sending and receiving messages occur through verbal and nonverbal communication techniques and can happen separately or simultaneously.
Verbal communication depends on language or a prescribed way of using words so that people can share information effectively. The critical aspects of verbal...
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Barriers to Effective Communication II01:21

Barriers to Effective Communication II

4.6K
The barriers to effective communication also include cultural barriers, semantic barriers, gender barriers, and time constraints.
Cultural barriers:
Differences in values, beliefs, religion, knowledge, and tradition can significantly impact communication. Awareness of nonverbal cues is critical, especially when conversing with a patient from a different culture. What appears appropriate in one culture may be inappropriate in another.
Semantic barriers:
As a result of their tendency to use...
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Related Experiment Video

Updated: Jan 31, 2026

Single-cell Microinjection for Cell Communication Analysis
09:59

Single-cell Microinjection for Cell Communication Analysis

Published on: February 26, 2017

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A Shocking Type of Communication.

Benjamin F Sallis1, Edda Fiebiger2

  • 1Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, Boston Children's Hospital, Boston, MA, USA.

Immunity
|December 20, 2018
PubMed
Summary
This summary is machine-generated.

Dendritic cells can trigger allergic reactions like anaphylaxis by releasing microvesicles that activate mast cells. This discovery sheds light on the immune cascade involved in severe allergic responses.

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Area of Science:

  • Immunology
  • Cell Biology
  • Allergy Research

Background:

  • Allergic reactions, including anaphylaxis, are initiated by allergen activation of mast cells.
  • The precise mechanisms by which allergens trigger mast cells in vivo are not fully understood.

Purpose of the Study:

  • To investigate the role of dendritic cells in initiating mast cell degranulation and anaphylaxis.
  • To elucidate the cellular and molecular pathways involved in allergen-induced immune responses.

Main Methods:

  • In vivo studies examining dendritic cell behavior within blood vessels.
  • Analysis of microvesicle release from dendritic cells.
  • Assessment of mast cell activation and degranulation in response to dendritic cell-derived microvesicles.

Main Results:

  • Dendritic cells were observed to sample the lumen of blood vessels.
  • Dendritic cells release microvesicles that are capable of triggering mast cell degranulation.
  • This microvesicle-mediated activation of mast cells contributes to the anaphylactic immune cascade.

Conclusions:

  • Dendritic cells play a critical role in initiating anaphylaxis by directly activating mast cells via microvesicles.
  • Understanding this pathway offers new targets for therapeutic interventions in allergic diseases.