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Overview of Electron Microscopy

Overview of Electron Microscopy

The wavelengths of visible light ultimately limit the maximum theoretical resolution of images created by light microscopes. Most light microscopes can only magnify 1000X, and a few can magnify up to 1500X. Electrons, like electromagnetic radiation, can behave like waves, but with wavelengths of 0.005 nm, they produce significantly greater resolution up to 0.05 nm as compared to 500 nm for visible light. An electron microscope (EM) can create a sharp image that is magnified up to 2,000,000X.

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Related Experiment Video

Updated: Jun 2, 2026

Comparing Bibliometric Analysis Using PubMed, Scopus, and Web of Science Databases

Comparing Bibliometric Analysis Using PubMed, Scopus, and Web of Science Databases

Published on: October 24, 2019

Figure summarizer browser extensions for PubMed Central.

Shashank Agarwal¹, Hong Yu

¹Medical Informatics, College of Health Science, University of Wisconsin-Milwaukee, Milwaukee, WI 53201-0413, USA. agarwal@uwm.edu

Bioinformatics (Oxford, England)

|April 16, 2011

Summary

This summary is machine-generated.

We created a tool to summarize figures in biomedical articles, making them easier to understand. Browser extensions are now available for Firefox, Chrome, and Safari to access these figure summaries.

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Area of Science:

Biomedical Informatics
Scientific Visualization
Information Retrieval

Background:

Figures in biomedical literature are crucial for conveying research findings.
Understanding figures out of context presents a significant challenge for readers.
Existing tools lack efficient methods for figure content summarization.

Purpose of the Study:

To develop a summarization algorithm for biomedical article figures.
To integrate this algorithm into a user-friendly figure search engine.
To create browser extensions for seamless access to figure summaries.

Main Methods:

Development of a novel summarization algorithm tailored for scientific figures.
Implementation of the algorithm within the figuresearch.askhermes.org search engine.
Creation of cross-browser extensions for Mozilla Firefox, Google Chrome, and Apple Safari.

Main Results:

The summarization algorithm effectively condenses figure content.
The figure search engine provides accessible figure summaries.
Browser extensions enable on-demand figure summarization within PubMed Central and NCBI Images.

Conclusions:

Summarization of figures enhances comprehension of biomedical research.
The developed browser extensions improve accessibility to figure information.
This work facilitates better understanding and retrieval of visual data in scientific literature.