Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Cross-bridge Cycle01:26

Cross-bridge Cycle

As muscle contracts, the overlap between the thin and thick filaments increases, decreasing the length of the sarcomere—the contractile unit of the muscle—using energy in the form of ATP. At the molecular level, this is a cyclic, multistep process that involves binding and hydrolysis of ATP, and movement of actin by myosin.
Wheatstone Bridge01:29

Wheatstone Bridge

An ohmmeter is a resistance-measuring device. It works by applying a voltage to a resistor of unknown resistance and measuring the current across the resistor. The resistance value is deduced using Ohm's law. Usually, the standard configuration of an ohmmeter comprises a voltmeter or an ammeter. However, such configurations are limited in accuracy because the meters alter the voltage applied to the resistor and the current that flows through it.
Thus, for accurate resistance measurements, a...
Actin Treadmilling01:18

Actin Treadmilling

Actin filaments undergo polymerization and depolymerization from either end. The polymerization and depolymerization rates depend on the cytosolic concentration of free G-actins. The polymerization rate is generally higher at the plus or barbed end, while the depolymerization rate is higher at the minus or pointed end. At a steady state, critical concentration describes the concentration of free G-actin monomers at which the polymerization rate at the plus end is equal to that of the...
Bridge rectifier01:24

Bridge rectifier

The bridge rectifier is essential in electronics for efficiently converting alternating current (AC) to direct current (DC). Comprised of four diodes configured in a bridge layout, this rectifier effectively processes both the positive and negative halves of the AC waveform, making it superior to half-wave and full-wave center-tapped rectifiers in terms of voltage regulation and output stability.
Operationally, the bridge rectifier allows current flow through two of its diodes during each...
Eccentric Loading01:16

Eccentric Loading

Eccentric loading is a crucial concept in the study of structural engineering and mechanics, particularly when analyzing the stability and stress distribution in columns. Unlike centric loading, where the force is applied along the centroidal axis, causing uniform compression, eccentric loading occurs when a force is applied off-center. This off-center application introduces not only direct compressive stress but also bending stress, significantly influencing the column's behavior under load.
Design Example: Strain Gauge Bridge or Wheatstone Bridge01:15

Design Example: Strain Gauge Bridge or Wheatstone Bridge

The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

How Time Attitudes Shape Academic Success: The Protective Pathways of Emotion Regulation and School Well-Being in Adolescents.

Journal of Intelligence·2026
Same author

From collective restriction to critical action: the indirect effects of critical motivation and radical hope.

Frontiers in psychiatry·2026
Same author

Empowering women through trauma-informed maternity care: the EMPATHY framework.

Frontiers in global women's health·2025
Same author

Initial construction and validation of the Racialized Impostor Phenomenon Scale.

Journal of counseling psychology·2025
Same author

Colonial deposits: A transnational dialogue exploring historic and contemporary embodiments of colorism.

The American psychologist·2025
Same author

How should trauma discussions be approached in maternity care? Perspectives from a qualitative study with women, voluntary sector representatives and healthcare providers in the UK.

BMJ open·2025
Same journal

Universal pluralism: Appreciating and exploring both similarity and difference across people and cultures.

The American psychologist·2026
Same journal

Frank John Vattano (1931-2025).

The American psychologist·2026
Same journal

Bernard Spilka (1926-2025).

The American psychologist·2026
Same journal

Guided by the evidence: Reply to Paniagua (2026).

The American psychologist·2026
Same journal

Randomized controlled trials confirm the efficacy of psychological interventions and medications: Commentary on Jobes and Barnett (2025).

The American psychologist·2026
Same journal

Summary report of journal operations, 2025.

The American psychologist·2026
See all related articles

Related Experiment Video

Updated: Jun 15, 2026

In Vivo Calcium Imaging in C. elegans Body Wall Muscles
08:03

In Vivo Calcium Imaging in C. elegans Body Wall Muscles

Published on: October 20, 2019

William E. Cross, Jr. (1940-2024).

Helen A Neville1, Michelle Fine2, Kevin O Cokley3

  • 1University of Illinois Urbana-Champaign, African American Studies and Educational Psychology.

The American Psychologist
|May 1, 2025
PubMed
Summary
This summary is machine-generated.

Dr. William E. Cross, Jr.’s nigrescence theory transformed the study of Black racial identity. His work challenged damage-centered narratives, emphasizing resilience and complexity in racial identity research.

More Related Videos

Ex Vivo Assessment of Contractility, Fatigability and Alternans in Isolated Skeletal Muscles
14:02

Ex Vivo Assessment of Contractility, Fatigability and Alternans in Isolated Skeletal Muscles

Published on: November 1, 2012

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth
11:46

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth

Published on: August 10, 2011

Related Experiment Videos

Last Updated: Jun 15, 2026

In Vivo Calcium Imaging in C. elegans Body Wall Muscles
08:03

In Vivo Calcium Imaging in C. elegans Body Wall Muscles

Published on: October 20, 2019

Ex Vivo Assessment of Contractility, Fatigability and Alternans in Isolated Skeletal Muscles
14:02

Ex Vivo Assessment of Contractility, Fatigability and Alternans in Isolated Skeletal Muscles

Published on: November 1, 2012

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth
11:46

Axon Stretch Growth: The Mechanotransduction of Neuronal Growth

Published on: August 10, 2011

Area of Science:

  • Psychology
  • Sociology
  • Cultural Studies

Background:

  • Dr. William E. Cross, Jr. was a pivotal figure in psychological research.
  • His work significantly impacted the understanding of race, ethnicity, and culture.

Purpose of the Study:

  • To summarize the educational and psychological contributions of Dr. William E. Cross, Jr.
  • To highlight the revolutionary impact of his nigrescence theory on racial identity research.

Main Methods:

  • Review of Dr. Cross's career, professional recognitions, and awards.
  • Analysis of the theoretical and practical applications of his racial identity models.

Main Results:

  • Dr. Cross's nigrescence theory revolutionized Black racial identity research.
  • His theories formed the basis for widely used racial and ethnic identity scales.
  • His research challenged "damage-centered" psychological narratives about the Black experience.

Conclusions:

  • Dr. Cross's work emphasized the strength, complexity, and resilience of Black communities.
  • His legacy transformed the approach to understanding racial identity and consciousness.