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The Availability Heuristic01:08

The Availability Heuristic

A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):

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Related Experiment Video

Updated: May 12, 2026

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities
12:33

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities

Published on: November 15, 2013

[Not Available].

S Leitner1, A Bucher, J Böhm

  • 1Institut für Histologie und Embryologie, Veterinärmedizinische Universität Wien, Wien, Österreich.

Mycotoxin Research
|April 23, 2013
PubMed
Summary
This summary is machine-generated.

Zearalenone exposure in feed altered lectin binding in sow reproductive tissues even at low doses. Higher concentrations caused more significant histological changes, indicating zearalenone

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Area of Science:

  • Animal reproduction
  • Toxicology
  • Histopathology

Context:

  • Zearalenone is a common mycotoxin found in animal feed.
  • Exposure can lead to estrogenic effects in livestock.
  • Understanding dose-dependent effects is crucial for animal health.

Purpose:

  • To investigate the effects of varying zearalenone concentrations on sow reproductive organs.
  • To compare routine histology with lectin histochemistry in detecting zearalenone-induced changes.

Summary:

  • Sows were fed diets with 50, 100, 500, or 1000 μg/kg zearalenone for 10 days.
  • Lectin binding patterns in glandular and surface epithelial cells changed across all groups.
  • Significant macroscopic alterations and clinical hyperestrogenism were rare, primarily observed at the highest doses.

Impact:

  • Lectin histochemistry is more sensitive than routine histology for detecting early zearalenone toxicity.
  • Subtle reproductive changes can occur at lower zearalenone levels than previously thought.
  • Highlights the importance of monitoring feed for mycotoxins to prevent reproductive issues in swine.