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

Magnetic Fields01:27

Magnetic Fields

7.3K
A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...
7.3K
Weak Base Solutions03:21

Weak Base Solutions

25.1K
Some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. In all cases, these compounds react only partially and so are classified as weak bases. These types of compounds are also abundant in nature and important commodities in various technologies. For example, global production of the weak base ammonia is typically well over 100 metric tons annually, being widely used as an agricultural fertilizer, a raw material for chemical synthesis of other...
25.1K
Magnetic Field of a Solenoid01:18

Magnetic Field of a Solenoid

5.8K
A solenoid is a conducting wire coated with an insulating material, wound tightly in the form of a helical coil. The magnetic field due to a solenoid is the vector sum of the magnetic fields due to its individual turns. Therefore, for an ideal solenoid, the magnetic field within the solenoid is directly proportional to the number of turns per unit length and the current. Conversely, the magnetic field outside the solenoid is zero.
Consider a solenoid with 100 turns wrapped around a cylinder of...
5.8K
Magnetic Field Lines01:19

Magnetic Field Lines

5.7K
The representation of magnetic fields by magnetic field lines is very useful in visualizing the strength and direction of the magnetic field. Each of the magnetic field lines forms a closed loop. The field lines emerge from the north pole (N), loop around to the south pole (S), and continue through the bar magnet back to the north pole.
Magnetic field lines follow several hard-and-fast rules:
5.7K
Energy In A Magnetic Field01:24

Energy In A Magnetic Field

2.7K
If a magnetic field is sustained, there must be a current in a closed circuit or loop, implying some energy has been spent in creating the field. If this energy is not dissipated via the circuit's resistance, it is stored in the field.
Take an ideal inductor with zero resistance. Although it's practically impossible, assume that the coil's resistance is so small that it is practically negligible. The loss of the field's energy to dissipate thermal energy (or heat) is thus...
2.7K
Weak Acid Solutions04:02

Weak Acid Solutions

43.0K
Few compounds act as strong acids. A far greater number of compounds behave as weak acids and only partially react with water, leaving a large majority of dissolved molecules in their original form and generating a relatively small amount of hydronium ions. Weak acids are commonly encountered in nature, being the substances partly responsible for the tangy taste of citrus fruits, the stinging sensation of insect bites, and the unpleasant smells associated with body odor. A familiar example of a...
43.0K

You might also read

Related Articles

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

Sort by
Same author

Verification of quantum biological predictions for weak magnetic field effects on superoxide in planarians.

PNAS nexus·2026
Same author

Essential Oils from <i>Olea europaea</i> and <i>Cyperus esculentus</i> Exhibit Promising Therapeutic Effect against Alzheimer's Disease in a Rat Model.

Current pharmaceutical biotechnology·2025
Same author

Verification of radical pair mechanism predictions for weak magnetic field effects on superoxide in planarians.

bioRxiv : the preprint server for biology·2024
Same author

Construction and Application of a Static Magnetic Field Exposure Apparatus for Biological Research in Aqueous Model Systems and Cell Culture.

Bio-protocol·2024
Same author

Accelerating an integrative view of quantum biology.

Frontiers in physiology·2024
Same author

Association of Serum Levels of Cystatin C and Cognition in a Cohort of Egyptian Elderly Patients with Chronic Kidney Disease.

Saudi journal of kidney diseases and transplantation : an official publication of the Saudi Center for Organ Transplantation, Saudi Arabia·2023
Same journal

Erratum for the Research Article "Assessing the health risks of rice cadmium content standards in China" by H. Chu <i>et al</i>.

Science advances·2026
Same journal

Erratum for the Research Article "Developmental regulation of Erk signaling by mitotic kinases" by F. Chen <i>et al</i>.

Science advances·2026
Same journal

Magnetically levitated metasurface enabling tangible and bidirectional human-machine interaction.

Science advances·2026
Same journal

A general photoinduced manganese-catalyzed platform for the sequential difunctionalization of [1.1.1]propellane.

Science advances·2026
Same journal

Turning sound and force into light with AlN:Mn<sup>2+</sup> mechanoluminescence.

Science advances·2026
Same journal

Extreme dominance of Earth-origin heavy ions in the intense ring current near the Earth during the May 2024 super geomagnetic storm.

Science advances·2026
See all related articles

Related Experiment Video

Updated: Jan 29, 2026

Enhancement of the Initial Growth Rate of Agricultural Plants by Using Static Magnetic Fields
05:17

Enhancement of the Initial Growth Rate of Agricultural Plants by Using Static Magnetic Fields

Published on: July 8, 2016

13.7K

Weak magnetic fields alter stem cell-mediated growth.

Alanna V Van Huizen1, Jacob M Morton1, Luke J Kinsey1

  • 1Department of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008, USA.

Science Advances
|February 8, 2019
PubMed
Summary
This summary is machine-generated.

Weak magnetic fields (WMFs) impact stem cell activity and tissue regeneration in planarians. WMF exposure can modulate new tissue formation, suggesting therapeutic potential for manipulating cell division.

More Related Videos

Video Bioinformatics Analysis of Human Embryonic Stem Cell Colony Growth
13:11

Video Bioinformatics Analysis of Human Embryonic Stem Cell Colony Growth

Published on: May 20, 2010

13.1K
Lentiviral-mediated Knockdown During Ex Vivo Erythropoiesis of Human Hematopoietic Stem Cells
14:22

Lentiviral-mediated Knockdown During Ex Vivo Erythropoiesis of Human Hematopoietic Stem Cells

Published on: July 16, 2011

13.7K

Related Experiment Videos

Last Updated: Jan 29, 2026

Enhancement of the Initial Growth Rate of Agricultural Plants by Using Static Magnetic Fields
05:17

Enhancement of the Initial Growth Rate of Agricultural Plants by Using Static Magnetic Fields

Published on: July 8, 2016

13.7K
Video Bioinformatics Analysis of Human Embryonic Stem Cell Colony Growth
13:11

Video Bioinformatics Analysis of Human Embryonic Stem Cell Colony Growth

Published on: May 20, 2010

13.1K
Lentiviral-mediated Knockdown During Ex Vivo Erythropoiesis of Human Hematopoietic Stem Cells
14:22

Lentiviral-mediated Knockdown During Ex Vivo Erythropoiesis of Human Hematopoietic Stem Cells

Published on: July 16, 2011

13.7K

Area of Science:

  • Biology
  • Biophysics
  • Regenerative Medicine

Background:

  • Biological systems interact with environmental electromagnetic fields (EMFs).
  • The biological effects of weak magnetic fields (WMFs; <1 mT) are debated.
  • Previous research indicates strong magnetic fields alter chemical reactions and free radical levels.

Purpose of the Study:

  • To investigate the biological effects of WMFs on stem cell proliferation and differentiation.
  • To explore the role of reactive oxygen species (ROS) and heat shock protein 70 (Hsp70) in WMF-induced biological responses.
  • To assess the potential of WMFs as a therapeutic tool for tissue regeneration.

Main Methods:

  • Utilized the planarian regeneration model.
  • Exposed planarians to controlled WMFs.
  • Measured stem cell proliferation, differentiation, ROS accumulation, and Hsp70 expression.

Main Results:

  • WMFs altered stem cell proliferation and differentiation in planarians.
  • Changes in ROS accumulation and Hsp70 expression were observed.
  • WMF exposure modulated new tissue formation in a field-strength-dependent manner, showing both increases and decreases.

Conclusions:

  • WMFs can influence biological processes, including stem cell behavior and tissue regeneration.
  • ROS and Hsp70 are key mediators in the response to WMFs.
  • WMFs show potential as a therapeutic strategy for controlling mitotic activity and promoting tissue repair.