Jove
Visualize
Contact Us

Related Concept Videos

Introduction to force01:25

Introduction to force

Consider water flowing from a nozzle to a turbine vane. As the water hits the turbine vane, it exerts a force that causes it to move along the flow of direction. Force is an impact that changes an object's motion, shape, or orientation. Forces can be caused by physical contact, such as a push or pull, or through non-contact interactions, such as magnetic or gravitational forces. Force is a vector quantity with both magnitude and direction, and is measured in newtons (N) in the SI unit system.
Proofreading01:43

Proofreading

Synthesis of new DNA molecules starts when DNA polymerase links nucleotides together in a sequence that is complementary to the template DNA strand. DNA polymerase has a higher affinity for the correct base to ensure fidelity in DNA replication. The DNA polymerase furthermore proofreads during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.Errors during Replication Are Corrected by the DNA Polymerase EnzymeGenomic DNA is synthesized in...
Proofreading01:31

Proofreading

Synthesis of new DNA molecules is carried out by the enzyme DNA polymerase, which adds nucleotides on the daughter strand complementary to the template DNA strand. DNA polymerase has a higher affinity to add the correct base and ensures fidelity during DNA replication. Furthermore,  it exhibits proofreading activity during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.
Errors During Replication are Corrected by the DNA Polymerase Enzyme
Free-falling Bodies: Introduction01:07

Free-falling Bodies: Introduction

All objects, neglecting air resistance, fall with the same acceleration towards the Earth's center due to the force exerted by the Earth's gravity. This experimentally determined fact is unexpected because we are so accustomed to the effects of air resistance and friction that we expect light objects to fall slower than heavier ones. People believed that a heavier object had a greater acceleration when falling until Galileo Galilei (1564–1642) proved otherwise. We now know this is not the case.
Review and Preview01:13

Review and Preview

Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
Review and Preview01:10

Review and Preview

In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...

You might also read

Related Articles

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

Sort by
Same author

Helping older adults meet nutritional challenges.

Journal of nutrition for the elderly·2008
Same author

Role of food perceptions in food selection of the elderly.

Journal of nutrition for the elderly·2008
Same author

Tailoring of nutritional support for older adults in the community.

Journal of nutrition for the elderly·2004
See all related articles
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 Experiment Video

Updated: Jun 27, 2026

Proper Care and Cleaning of the Microscope
04:57

Proper Care and Cleaning of the Microscope

Published on: August 11, 2008

Editors' preface

Magdalena Krondl1, Daisy Lau

  • 1Department of Nutritional Sciences, Faculty of Medicine, Institute for Human Development, Life Courses and Aging, University of Toronto, Ontario, Canada.

Journal of Nutrition for the Elderly
|December 2, 2008
PubMed
Summary

No abstract available in PubMed .

More Related Videos

Dissection of Drosophila Ovaries
04:55

Dissection of Drosophila Ovaries

Published on: October 19, 2006

Dissection of Imaginal Discs from 3rd Instar Drosophila Larvae
07:36

Dissection of Imaginal Discs from 3rd Instar Drosophila Larvae

Published on: February 17, 2007

Related Experiment Videos

Last Updated: Jun 27, 2026

Proper Care and Cleaning of the Microscope
04:57

Proper Care and Cleaning of the Microscope

Published on: August 11, 2008

Dissection of Drosophila Ovaries
04:55

Dissection of Drosophila Ovaries

Published on: October 19, 2006

Dissection of Imaginal Discs from 3rd Instar Drosophila Larvae
07:36

Dissection of Imaginal Discs from 3rd Instar Drosophila Larvae

Published on: February 17, 2007