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Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic...
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Magnetic dipoles in magnetic materials are aligned when placed under an external magnetic field. For paramagnets and ferromagnets, dipole alignment occurs in the direction of the magnetic field. However, the dipoles align opposite to the field in the case of diamagnets. This state of magnetic polarization due to the external field is called magnetization. Magnetization is defined as the dipole moment per unit volume. It plays a similar role to polarization in electrostatics.
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Related Experiment Video

Updated: Jan 19, 2026

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
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Achieving magnet redesignation: a framework for cultural change.

Valda V Upenieks1, Mary Sitterding

  • 1Upenieks Health Services Consulting, West Hills, California 91304, USA. valda@upeniekshealthservicesconsulting.com

The Journal of Nursing Administration
|October 14, 2008
PubMed
Summary

Magnet recognition is the highest nursing award, highlighting organizational commitment to excellence. This study details one hospital's successful journey to achieve and maintain Magnet status, focusing on integrated models.

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Area of Science:

  • Nursing Administration
  • Healthcare Quality Improvement

Background:

  • The American Nurses Credentialing Center (ANCC) Magnet recognition program signifies the highest achievement in nursing.
  • Magnet status is awarded based on specific structural and outcome criteria, known as the 14 Forces of Magnetism.

Purpose of the Study:

  • To describe a hospital's experience in achieving initial Magnet recognition.
  • To outline the strategies and models employed for redesignation.

Main Methods:

  • The study details a qualitative review of a single institution's journey.
  • Focuses on the integration of specific organizational models contributing to Magnet status.

Main Results:

  • The hospital successfully achieved initial Magnet recognition.
  • The institution also successfully navigated the redesignation process, indicating sustained excellence.

Conclusions:

  • Successful Magnet recognition is attainable through dedicated commitment, support, and resources for nursing excellence.
  • Integrated organizational models are crucial for both initial achievement and sustained Magnet designation.