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Related Concept Videos

Retrieval01:12

Retrieval

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Retrieval is the process of getting information out of memory storage and back into conscious awareness. This ability is essential for daily tasks like brushing hair and teeth, driving to work, and performing job duties. Retrieval occurs in three ways: recall, recognition, and relearning.
Recall involves accessing information without cues, such as during an essay test, where individuals must retrieve facts and concepts from memory unaided. Another example is remembering the name of a colleague...
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During the 1950s, the landmark Robbers Cave experiment demonstrated that when groups must compete with one another, intergroup conflict, hostility, and even violence may result. At the Oklahoman summer camp, two troops of boys—termed the Rattlers and the Eagles—took part in a week-long tournament. During this time, their negativity culminated in derogatory name-calling, fistfights, and even vandalism and destruction of property. However, this work also revealed that such tension...
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Trial and Error and Algorithm01:12

Trial and Error and Algorithm

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A problem-solving strategy is a plan of action used to find a solution. Different strategies have distinct action plans. Trial and error involves trying different solutions until one works. For instance, to fix a broken printer, you might check ink levels, ensure the paper tray isn't jammed, and verify the printer's connection to your laptop. This method can be time-consuming but is commonly used. Thomas Edison, for example, used trial and error to find a suitable filament for the light...
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Survival Tree01:19

Survival Tree

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Survival trees are a non-parametric method used in survival analysis to model the relationship between a set of covariates and the time until an event of interest occurs, often referred to as the "time-to-event" or "survival time." This method is particularly useful when dealing with censored data, where the event has not occurred for some individuals by the end of the study period, or when the exact time of the event is unknown.
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Types of Surveys01:27

Types of Surveys

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Surveys are essential for marking property boundaries near water bodies. Different types of surveys are defined, each with its own function. Land surveys mark the property boundaries, while route surveys determine the position of properties on nearby highways. Topographic surveys create maps by capturing the three-dimensional features of the land. Hydrographic surveys focus on the shapes of underwater areas and the movement of streams through the properties. Mine surveys determine the relative...
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Water and Mineral Acquisition

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Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
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Related Experiment Video

Updated: Jul 28, 2025

A Real-world What-Where-When Memory Test
09:13

A Real-world What-Where-When Memory Test

Published on: May 16, 2017

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Treasure hunt.

Paul Voosen

    Science (New York, N.Y.)
    |June 1, 2023
    PubMed
    Summary

    A new U.S. geological survey may uncover essential critical mineral reserves. This nationwide effort aims to identify vital resources for the country's future needs.

    Area of Science:

    • Geological Sciences
    • Resource Management
    • National Security

    Background:

    • The United States is initiating its first comprehensive nationwide geological survey in decades.
    • This initiative addresses the growing demand and strategic importance of critical minerals.

    Discussion:

    • The survey employs advanced geological mapping and resource assessment techniques.
    • It focuses on identifying potential deposits of minerals crucial for technological and defense applications.

    Key Insights:

    • Preliminary findings suggest significant untapped potential for critical mineral resources across the U.S.
    • The survey's data will be vital for understanding domestic supply chain vulnerabilities.

    Outlook:

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  • The results are expected to inform national policy on resource extraction and strategic stockpiling.
  • This geological survey is a foundational step towards enhancing U.S. resource independence and economic competitiveness.