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Related Concept Videos

Photosystems01:32

Photosystems

Photosystems are multiprotein complexes that form the functional units of photosynthesis in plants, algae, and cyanobacteria. They are found embedded in the membrane of tiny sac-like structures called thylakoids placed inside the chloroplast.
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Photosystems contain many pigment molecules, such as chlorophylls and carotenoids, arranged in a particular organization across two domains — the antenna complex and the reaction center. The main aim of the pigment molecules...
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Photosystem I

Although structurally similar to photosystem II (PSII), photosystem I (PSI) is has a different electron supplier and electron acceptor.
Both these photosystems work in concert. An excited electron from PSII is relayed to PSI via an electron transport chain in the thylakoid membrane of the chloroplast, which is comprised of the carrier molecule plastoquinone, the dual-protein cytochrome complex, and plastocyanin. As electrons move between PSII and PSI, they lose energy and must be re-energized...
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Photosystem II

The multi-protein complex photosystem II (PS II) harvests photons and transfers their energy through its bound pigments to its reaction center, and ultimately to photosystem I (PSI) through the electron transport chain. The pigments responsible for caputirng the light energy in photosystems include chlorophyll a, chlorophyll b, and carotenoids.
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Legal Guidelines for Documentation

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Guidelines for Nursing Documentation I

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Factual:  
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Using Visual and Narrative Methods to Achieve Fair Process in Clinical Care
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Published on: February 16, 2011

Criteria for submitting photos.

Andrelou Fralete Ayres Vallarelli1

  • 1Faculty of Medical Sciences, State University of Campinas (UNICAMP) — São Paulo (SP), Brazil.

Anais Brasileiros De Dermatologia
|May 24, 2011
PubMed
Summary

High-quality dermatological photography enhances patient diagnosis and treatment. This article provides criteria for improving medical image quality in scientific publications.

Area of Science:

  • Dermatology
  • Medical Imaging
  • Scientific Photography

Background:

  • Dermatological photography supplements clinical examinations by providing crucial visual information.
  • The diagnostic value of dermatological images relies heavily on the photographer-dermatologist's expertise.
  • High-quality images are essential for accurate scientific communication in dermatology.

Purpose of the Study:

  • To establish criteria for enhancing the quality of dermatological photographs.
  • To guide dermatologists and journal editors in producing and selecting superior medical images.
  • To improve the reliability and interpretability of visual data in dermatological research.

Main Methods:

  • Review of current practices in dermatological photography.

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  • Identification of key photographic elements critical for dermatological diagnosis.
  • Formulation of specific quality standards for medical image submission.
  • Main Results:

    • Defined essential criteria for image clarity, focus, and color balance.
    • Highlighted the importance of consistent lighting and scale in dermatological images.
    • Provided a framework for evaluating image quality relevant to publication.

    Conclusions:

    • Implementing standardized photographic criteria can significantly elevate the quality of published dermatological images.
    • Photographer-dermatologist expertise in basic photography principles is vital.
    • Journal editors play a key role in enforcing image quality standards for scientific integrity.