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

The Uncertainty Principle04:08

The Uncertainty Principle

25.6K
Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...
25.6K
Fischer Projections02:18

Fischer Projections

12.9K
Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines.
12.9K
Prochirality02:05

Prochirality

4.0K
The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...
4.0K
Pascal's Law01:04

Pascal's Law

9.5K
In 1653, the French philosopher and scientist Blaise Pascal published "Treatise on the Equilibrium of Liquids," which discussed the principles of static fluids. A static fluid is a fluid that is not in motion. When a fluid is not flowing, we say that the fluid is in static equilibrium. If the fluid is water, we say it is in hydrostatic equilibrium. For a fluid in static equilibrium, the net force on any part of the fluid must be zero; otherwise, the fluid will start to flow. Pascal...
9.5K
Prodrugs01:30

Prodrugs

4.1K
Prodrugs are a class of pharmaceutical compounds that undergo a biotransformation process within the body to be converted into a pharmacologically active drug. Prodrugs are designed to improve the therapeutic properties of the parent drug, such as enhancing bioavailability, increasing stability, or reducing toxicity. The concept of prodrugs revolves around modifying the chemical structure of the original drug to make it more effective or convenient for administration.
Prodrugs help overcome...
4.1K
Life Tables01:22

Life Tables

693
A life table is a statistical tool that summarizes the mortality and survival patterns of a population, providing detailed insights into the likelihood of survival or death across different age intervals within a cohort. By organizing data on survival probabilities and mortality rates, life tables offer a clear snapshot of population dynamics over time. They are extensively used in demography, public health, actuarial science, and ecology to analyze life expectancy, design health interventions,...
693

You might also read

Related Articles

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

Sort by
Same author

Larry E. Beutler (1941-2024).

The American psychologistยท2025
Same author

Larry E. Beutler (1941-2024).

The American psychologistยท2025
Same author

The Cooper-Norcross Inventory of Preferences: Measurement invariance across international datasets and languages.

Psychotherapy research : journal of the Society for Psychotherapy Researchยท2023
Same author

Donald K. Freedheim (1932-2023).

The American psychologistยท2023
Same author

Psychologists conducting psychotherapy in 2022: Contemporary practices and historical patterns of the Society for the Advancement of Psychotherapy.

Psychotherapy (Chicago, Ill.)ยท2023
Same author

Research evidence on psychotherapist skills and methods: Foreword and afterword.

Psychotherapy research : journal of the Society for Psychotherapy Researchยท2023
Same journal

Cumulative adverse childhood experiences and parent-reported allergic conditions and asthma among U.S. children: A nationally representative study.

The American psychologistยท2026
Same journal

Natural disaster, social cohesion, and prosociality: A natural experiment.

The American psychologistยท2026
Same journal

Practice guidelines regarding psychologists' involvement in pharmacological issues.

The American psychologistยท2026
Same journal

International Competences for Undergraduate Psychology (ICUP): A constructive shift for psychology?

The American psychologistยท2026
Same journal

Two dimensions of access: Availability and affordability of mental health care across the United States.

The American psychologistยท2026
Same journal

Revisiting secondary antisemitism: Antisemitism as a cause, not a consequence, of ingroup-serving Holocaust distortions.

The American psychologistยท2026
See all related articles

Related Experiment Video

Updated: May 6, 2026

A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae
10:39

A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae

Published on: September 17, 2020

6.1K

James O. Prochaska (1942-2023).

Carlo C DiClemente1, John C Norcross2

  • 1University of Maryland, Baltimore County.

The American Psychologist
|March 21, 2025
PubMed
Summary
This summary is machine-generated.

This abstract memorializes James O. Prochaska, a pioneer in health behavior change. He co-developed the transtheoretical model (TTM), a key framework for understanding behavior modification.

More Related Videos

Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas
08:10

Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas

Published on: May 25, 2021

5.3K
Residue-Specific Exchange of Proline by Proline Analogs in Fluorescent Proteins: How "Molecular Surgery" of the Backbone Affects Folding and Stability
10:31

Residue-Specific Exchange of Proline by Proline Analogs in Fluorescent Proteins: How "Molecular Surgery" of the Backbone Affects Folding and Stability

Published on: February 3, 2022

4.3K

Related Experiment Videos

Last Updated: May 6, 2026

A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae
10:39

A Suppressor Screen for the Characterization of Genetic Links Regulating Chronological Lifespan in Saccharomyces cerevisiae

Published on: September 17, 2020

6.1K
Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas
08:10

Building Langmuir Probes and Emissive Probes for Plasma Potential Measurements in Low Pressure, Low Temperature Plasmas

Published on: May 25, 2021

5.3K
Residue-Specific Exchange of Proline by Proline Analogs in Fluorescent Proteins: How "Molecular Surgery" of the Backbone Affects Folding and Stability
10:31

Residue-Specific Exchange of Proline by Proline Analogs in Fluorescent Proteins: How "Molecular Surgery" of the Backbone Affects Folding and Stability

Published on: February 3, 2022

4.3K

Area of Science:

  • Psychology
  • Health Behavior Change

Background:

  • James O. Prochaska (1942-2023) was a distinguished clinical psychologist.
  • He significantly impacted the field of health behavior change research and practice.

Observation:

  • Prochaska is renowned for co-creating the transtheoretical model (TTM) with Carlo C. DiClemente.
  • He dedicated 50 years to the Psychology Department faculty at the University of Rhode Island.

Findings:

  • The transtheoretical model (TTM) provides a foundational framework for understanding and facilitating behavior change.
  • Prochaska's work has been instrumental in advancing the science of behavior modification.

Implications:

  • The legacy of James O. Prochaska continues through the application of the TTM in various health interventions.
  • His collaboration with Janice Prochaska to found Pro-Change Behavior Solutions aimed to translate scientific findings into practical applications.