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相关概念视频

Psychology as a Science01:13

Psychology as a Science

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Psychology, as a scientific discipline, aims to understand the mind and behavior through rigorous and systematic methods. The foundation of psychological research is evidence-based, relying heavily on the scientific method to derive and validate knowledge. This structured approach ensures that findings are reliable, valid, and applicable to broader contexts.
The scientific method in psychology involves six critical steps: making observations, formulating hypotheses, conducting tests, analyzing...
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The Scientific Method01:32

The Scientific Method

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The scientific method is a detailed, empirical problem-solving process used by biologists and other scientists. This iterative approach involves formulating a question based on observation, developing a testable potential explanation for the observation (called a hypothesis), making and testing predictions based on the hypothesis, and using the findings to create new hypotheses and predictions.
Generally, predictions are tested using carefully-designed experiments. Based on the outcome of these...
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Threats to Biodiversity01:50

Threats to Biodiversity

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There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
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Global Climate Change01:50

Global Climate Change

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Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
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Social Traps01:41

Social Traps

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Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
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CRISPR01:59

CRISPR

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Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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Evaluating the Impact of Hydraulic Fracturing on Streams using Microbial Molecular Signatures
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特朗普如何颠覆科学

David Malakoff

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    |May 8, 2025
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    概括
    此摘要是机器生成的。

    一个快速的100天联邦研究大修造成了重大破坏. 这些变化预计将对科学进步和政策产生长期影响.

    科学领域:

    • 政策研究
    • 研究管理

    背景情况:

    • 联邦研究资金和政策对于科学进步至关重要.
    • 突如其来的大规模政策变化可能会破坏已建立的研究生态系统.

    研究的目的:

    • 分析联邦快速研究改革的直接影响和长期后果.
    • 评估100天改革进程的混乱性质.

    主要方法:

    • 对政策文件和实施战略进行定性分析.
    • 评估利益相关者的反和专家意见.
    • 对联邦研究政策变革的历史先例的审查.

    主要成果:

    • 百日改革时期的特点是混乱和快速,往往没有协调的政策转变.
    • 关键的联邦研究机构经历了重大的运营和战略中断.
    • 对研究资金,科学优先事项和创新的长期影响仍然不确定,但预计将是显著的.

    结论:

    • 联邦研究改革的混乱实施对科学完整性和生产力构成风险.
    • 长期影响是不可避免的,需要仔细监测和潜在的缓解策略.
    • 这项研究强调了联邦研究管理中深思熟虑和包容性的政策制定过程的重要性.

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