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Electrochemical Systems01:24

Electrochemical Systems

Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution, the Zn metal, composed...
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Methods of Documentation VII: EMR01:30

Methods of Documentation VII: EMR

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Electro-mechanical Systems01:19

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Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
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The Periodic Table and Organismal Elements00:57

The Periodic Table and Organismal Elements

OverviewElements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally-occurring, and fewer still are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.The Periodic Table Provides Information...
Methods of Documentation V: CBE01:23

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Charting by Exception, or CBE, is a method of documentation used in healthcare, particularly in nursing, that focuses on documenting only significant or abnormal findings rather than recording every detail. This approach aims to streamline the documentation process, improve efficiency, and ensure that healthcare providers can quickly identify deviations from normalcy in patient assessments.
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EMEN2: an object oriented database and electronic lab notebook.

Ian Rees1, Ed Langley, Wah Chiu

  • 1Graduate Program of Structural and Computational Biology and Molecular Biophysics, Baylor College of Medicine, Houston, TX 77030, USA.

Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada
|January 31, 2013
PubMed
Summary
This summary is machine-generated.

EMEN2 is a flexible, object-oriented database designed for experimental sciences like transmission electron microscopy (TEM). It manages large datasets and evolving techniques, supporting scientists globally with easy adoption and web access.

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Area of Science:

  • Scientific data management
  • Experimental sciences
  • Microscopy techniques

Background:

  • Transmission electron microscopy (TEM) and related methods are data-intensive and highly variable.
  • Traditional relational databases struggle with evolving experimental techniques.
  • Object-oriented databases offer a flexible alternative for managing dynamic scientific data.

Purpose of the Study:

  • To present EMEN2, an object-oriented database system.
  • To provide a flexible infrastructure adaptable to various experimental sciences.
  • To facilitate data management for complex and evolving research.

Main Methods:

  • Development of EMEN2, a pure object-oriented database.
  • Implementation of a dynamic web interface for user access.
  • Provision of APIs for programmatic data interaction.
  • Design for easy adoption in diverse laboratory settings without requiring professional database administration.

Main Results:

  • EMEN2 supports approximately 800 scientists worldwide.
  • Manages over 1/2 million experimental records.
  • Stores over 20 TB of experimental data.
  • Offers a user-friendly web interface and programmatic access.

Conclusions:

  • EMEN2 provides a scalable and adaptable solution for managing large, complex datasets in experimental sciences.
  • Its flexible, object-oriented design supports the evolving nature of scientific research.
  • The system is freely available with complete source code, promoting widespread adoption.