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

Structure-Activity Relationships and Drug Design01:28

Structure-Activity Relationships and Drug Design

Drug design is a dynamic field that involves discovering and developing new medications based on specific biological targets. This process heavily relies on structure-activity relationships (SAR) and quantitative structure-activity relationships (QSAR) to guide the design and optimization of efficient drugs.
SAR studies the intricate relationship between a drug's chemical structure and biological activity. It focuses on understanding how modifications to a drug's structure can influence its...
Fundamental Mathematical Principles in Pharmacokinetics: Rate and Order of Reaction01:15

Fundamental Mathematical Principles in Pharmacokinetics: Rate and Order of Reaction

In pharmacokinetics, the rates and order of reactions play a crucial role in understanding how the body processes drugs and help us comprehend drug absorption, distribution, metabolism, and elimination. A critical concept in pharmacokinetics is the rate constant, which quantifies the speed of a reaction. It provides valuable information about the kinetics of drug elimination. The rate constant allows us to determine the rate at which drugs are eliminated from the body.
Pharmacokinetic reactions...
Reaction Quotient02:35

Reaction Quotient

The status of a reversible reaction is conveniently assessed by evaluating its reaction quotient (Q). For a reversible reaction described by m A + n B ⇌ x C + y D, the reaction quotient is derived directly from the stoichiometry of the balanced equation as
Quantitative Aspects of Drug-Receptor Interaction01:30

Quantitative Aspects of Drug-Receptor Interaction

The receptor occupancy theory connects a drug's response to the number of occupied receptors. With higher drug concentrations, more receptors are occupied, leading to increased responses. The formation of drug-receptor complexes involves association and dissociation rates, which reach equilibrium when the forward and backward reactions are equal. The equilibrium association constant (Ka) and its inverse, the equilibrium dissociation constant (Kd), indicate drug affinity. Higher Ka and lower Kd...
MO Theory and Covalent Bonding02:40

MO Theory and Covalent Bonding

The molecular orbital theory describes the distribution of electrons in molecules in a manner similar to the distribution of electrons in atomic orbitals. The region of space in which a valence electron in a molecule is likely to be found is called a molecular orbital. Mathematically, the linear combination of atomic orbitals (LCAO) generates molecular orbitals. Combinations of in-phase atomic orbital wave functions result in regions with a high probability of electron density, while...
VSEPR Theory02:37

VSEPR Theory

Valence shell electron-pair repulsion theory (VSEPR theory) enables us to predict the molecular structure around a central atom from an examination of the number of bonds and lone electron pairs in its Lewis structure. The VSEPR model assumes that electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between these electron pairs by maximizing the distance between them. The electrons in the valence shell of a central atom form either bonding...

You might also read

Related Articles

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

Sort by
Same author

From bioactivity prediction to experimental protocol evaluation: QSAR models on the anticarcinogenic activity of flavonoids and related compounds in MCF-7 breast cancer models.

Journal of computer-aided molecular design·2026
Same author

Novel two variable-QSPR analysis for authentication and typification of vegetable oils.

Journal of molecular graphics & modelling·2025
Same author

QSPR predicting the vapor pressure of pesticides into high/low volatility classes.

Environmental science and pollution research international·2023
Same author

Excito-repellent and Pesticide-Likeness Properties of Essential Oils on <i>Carpophilus dimidiatus</i> (Fabricius) (Nitidulidae) and <i>Oryzaephilus mercator</i> (L.) (Silvanidae).

Journal of chemical information and modeling·2023
Same author

Resonance structure contributions, flexibility, and frontier molecular orbitals (HOMO-LUMO) of pelargonidin, cyanidin, and delphinidin throughout the conformational space: application to antioxidant and antimutagenic activities.

Journal of molecular modeling·2022
Same author

Dietary anthocyanins balance immune signs in osteoarthritis and obesity - update of human <i>in vitro</i> studies and clinical trials.

Critical reviews in food science and nutrition·2022

Related Experiment Video

Updated: Jun 27, 2026

Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors
10:29

Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors

Published on: May 9, 2025

Partial order theory applied to QSPR-QSAR studies.

Pablo R Duchowicz1, Eduardo A Castr

  • 1Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas INIFTA (UNLP, CCT La Plata-CONICET), Diag. 113 y 64, C.C. 16, Suc.4, (1900) La Plata, Argentina. pduchowicz@gmail.com

Combinatorial Chemistry & High Throughput Screening
|December 17, 2008
PubMed
Summary

Partial Order Ranking offers a transparent method for comparing objects based on attributes, particularly useful in Quantitative Structure-Property Relationship (QSPR) and Quantitative Structure-Activity Relationship (QSAR) studies. This review explores its mathematical formalism for non-specialist readers.

More Related Videos

In Silico Modeling Method for Computational Aquatic Toxicology of Endocrine Disruptors: A Software-Based Approach Using QSAR Toolbox
05:47

In Silico Modeling Method for Computational Aquatic Toxicology of Endocrine Disruptors: A Software-Based Approach Using QSAR Toolbox

Published on: August 28, 2019

Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering
07:19

Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering

Published on: November 5, 2018

Related Experiment Videos

Last Updated: Jun 27, 2026

Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors
10:29

Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors

Published on: May 9, 2025

In Silico Modeling Method for Computational Aquatic Toxicology of Endocrine Disruptors: A Software-Based Approach Using QSAR Toolbox
05:47

In Silico Modeling Method for Computational Aquatic Toxicology of Endocrine Disruptors: A Software-Based Approach Using QSAR Toolbox

Published on: August 28, 2019

Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering
07:19

Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering

Published on: November 5, 2018

Area of Science:

  • Quantitative Structure-Property Relationship (QSPR)
  • Quantitative Structure-Activity Relationship (QSAR)
  • Decision Support Systems
  • Environmental Research
  • Analytical Chemistry

Background:

  • Ranking methodologies are extensively documented in scientific literature, often presented with significant mathematical complexity.
  • Various scientific disciplines, including toxicology, environmental research, and food chemistry, utilize ranking strategies.
  • Partial Order Ranking (POR) provides a transparent and effective approach for multi-criteria data analysis, facilitating comparisons of objects based on attribute values.

Purpose of the Study:

  • To review and explain the concepts of Partial Order Ranking.
  • To provide insights into the mathematical formalism of POR for QSPR-QSAR applications.
  • To make POR accessible to readers without specialized mathematical backgrounds.

Main Methods:

  • Exploration of existing literature on ranking methods.
  • Focus on the application and formalism of Partial Order Ranking.
  • Revision of research contributions from various experts in the field.

Main Results:

  • Partial Order Ranking emerges as a highly transparent and suitable method for comparing objects based on multiple attributes.
  • The POR methodology offers a valuable alternative to other multi-criteria analysis techniques.
  • The review elucidates the practical application of POR in QSPR-QSAR studies.

Conclusions:

  • Partial Order Ranking presents a clear and understandable framework for comparative analysis in scientific research.
  • Its application in QSPR-QSAR studies offers significant advantages for data interpretation.
  • The review aims to demystify POR, encouraging its broader adoption in relevant scientific fields.