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Related Concept Videos

Communication01:03

Communication

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.
Communication01:28

Communication

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.
Within...
Channels of Non-Verbal Communication01:28

Channels of Non-Verbal Communication

Non-verbal communication plays a critical role in human interaction, influencing how individuals perceive emotions and psychological states. It operates through four primary channels: facial expressions, eye contact, body language, and touch. These non-verbal cues help convey meaning beyond spoken language and are often culturally influenced.Facial Expressions and Emotional RecognitionFacial expressions are among the most powerful and universal forms of non-verbal communication. Research has...
Design Example01:23

Design Example

The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
Sensory Modalities01:15

Sensory Modalities

Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
Impression Management Techniques IV: Altercasting01:14

Impression Management Techniques IV: Altercasting

Altercasting is a strategic communication technique in which an individual imposes a specific identity or social role onto another person to influence their behavior and shape the interaction. By presuming a role—such as “responsible leader” or “patient person”—altercasting encourages the target to conform to that identity, often aligning their behavior with the expectations associated with the role. The power of this tactic lies in its subtlety; once a role is assigned, it becomes socially...

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Related Experiment Video

Updated: Jun 22, 2026

Computer-Generated Animal Model Stimuli
26:43

Computer-Generated Animal Model Stimuli

Published on: July 29, 2007

Communication modes applied to axicons.

Anna Burvall, Per Martinsson, Ari Friberg

    Optics Express
    |May 29, 2009
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces communication modes for optical field analysis using generalized axicon geometry. These modes, represented by prolate spheroidal wave functions, offer a novel approach for information propagation and analysis.

    Related Experiment Videos

    Last Updated: Jun 22, 2026

    Computer-Generated Animal Model Stimuli
    26:43

    Computer-Generated Animal Model Stimuli

    Published on: July 29, 2007

    Area of Science:

    • Optics and Photonics
    • Information Theory
    • Mathematical Physics

    Background:

    • Optical fields require efficient methods for propagation and analysis.
    • Axicon geometry provides a unique framework for focusing and manipulating light.
    • Generalized axicons offer extended capabilities beyond traditional designs.

    Purpose of the Study:

    • To formulate communication modes within generalized axicon geometry.
    • To explore the representation of these modes using specific mathematical functions.
    • To validate the theoretical findings through numerical simulations.

    Main Methods:

    • Formulation of communication modes in generalized axicon geometry.
    • Utilizing prolate spheroidal wave functions for mode representation under rotational symmetry.
    • Approximation of modes using quadratic waves and sinc functions.
    • Numerical confirmation of theoretical models.

    Main Results:

    • Communication modes are successfully formulated in generalized axicon geometry.
    • Prolate spheroidal wave functions accurately represent modes in rotational symmetry.
    • Modes can be approximated by quadratic waves (aperture domain) and sinc functions (image domain).
    • Numerical simulations validate both exact modes and approximation techniques.

    Conclusions:

    • The proposed communication modes provide a powerful tool for optical field analysis.
    • The use of prolate spheroidal wave functions offers a robust mathematical framework.
    • Approximation methods offer practical simplifications for analysis and computation.
    • The findings are applicable to linear axicons and potentially other generalized axicon systems.