Related Experiment Video

Updated: Feb 7, 2026

Collecting Hair Samples for Hair Cortisol Analysis in African Americans
06:01

Collecting Hair Samples for Hair Cortisol Analysis in African Americans

Published on: June 10, 2018

19.4K

Disentangling Family Life and Hair Pulling: Trichotillomania and Relatedness

Bridget Bradley1, Stefan Ecks1

  • 1a Department of Social Anthropology , University of Edinburgh , Edinburgh , Scotland.

Medical Anthropology
|July 13, 2018
PubMed

Keywords:
United KingdomUnited Statesfamily relationshair pullingrelatednesstrichotillomania

More Related Videos

Disentangling High Strength Copolymer Aramid Fibers to Enable the Determination of Their Mechanical Properties06:02

Disentangling High Strength Copolymer Aramid Fibers to Enable the Determination of Their Mechanical Properties

Published on: September 1, 2018

7.5K
Pull-down of Calmodulin-binding Proteins07:51

Pull-down of Calmodulin-binding Proteins

Published on: January 23, 2012

25.9K

Related Concept Videos

Protein Families02:47

Protein Families

Protein families are groups of homologous proteins; that is, they have similarities in amino acid sequences and three-dimensional structures. Protein families usually occur because of gene duplication, where an additional copy of a gene is inserted into the genome of an organism.   Mutations that change the amino acids but still allow the protein to be properly synthesized, will lead to new protein family members.   If these new proteins contain similar amino acids in key...
17.1K
Protein Families02:47

Protein Families

4.5K
Gene Families01:57

Gene Families

Gene families consist of groups of genes proposed to have originated from a common ancestor. Typically these arise through events in which a gene or genes are mistakenly duplicated during cell division. Unlike their parent genes (which are subject to selection pressure to maintain function), these gene copies do not need to preserve their sequences and may evolve at a relatively faster rate.
Occasionally these regions can be adapted to take on new roles within the organism, becoming novel genes...
10.0K
Gene Families01:57

Gene Families

3.8K
Hair Cells01:22

Hair Cells

Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here.
45.1K
Half-life of a Reaction02:42

Half-life of a Reaction

The half-life of a reaction (t1/2) is the time required for one-half of a given amount of reactant to be consumed. In each succeeding half-life, half of the remaining concentration of the reactant is consumed. For example, during the decomposition of hydrogen peroxide, during the first half-life (from 0.00 hours to 6.00 hours), the concentration of H2O2 decreases from 1.000 M to 0.500 M. During the second half-life (from 6.00 hours to 12.00 hours), the concentration decreases from 0.500 M to...
39.2K