Related Experiment Video

Updated: Feb 5, 2026

A Method for Extracting Pigments from Squid Doryteuthis pealeii
11:03

A Method for Extracting Pigments from Squid Doryteuthis pealeii

Published on: November 9, 2016

9.9K

Metamerism of Three Different Pigments for Facial Prostheses and a Method to Improve Shade Evaluation

Karen R Bennie, Meriting G Thokoane, C Peter Owen

    The International Journal of Prosthodontics
    |September 8, 2018
    PubMed
    Abstract

    More Related Videos

    Protocol for Data Collection and Analysis Applied to Automated Facial Expression Analysis Technology and Temporal Analysis for Sensory Evaluation07:12

    Protocol for Data Collection and Analysis Applied to Automated Facial Expression Analysis Technology and Temporal Analysis for Sensory Evaluation

    Published on: August 26, 2016

    9.9K
    Author Spotlight: Efficient Isolation of Primary Retinal Pigment Epithelial Cells from Adult Mice for Retinopathy Research05:04

    Author Spotlight: Efficient Isolation of Primary Retinal Pigment Epithelial Cells from Adult Mice for Retinopathy Research

    Published on: May 24, 2024

    2.4K

    Related Concept Videos

    Pigmentation01:19

    Pigmentation

    The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
    Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
    4.3K
    Muscles for Facial Expressions01:14

    Muscles for Facial Expressions

    The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...
    4.9K
    Facial Feedback Hypothesis01:24

    Facial Feedback Hypothesis

    Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
    676
    Improving Translational Accuracy02:07

    Improving Translational Accuracy

    3.7K
    Improving Translational Accuracy02:07

    Improving Translational Accuracy

    Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
    15.0K
    Self-Evaluation: Self-Enhancement and Self-Verification03:00

    Self-Evaluation: Self-Enhancement and Self-Verification

    Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
    5.8K