Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Synthetic Biology02:55

Synthetic Biology

Synthetic biology is an interdisciplinary science that involves using principles from disciplines such as engineering, molecular biology, cell biology, and systems biology. It involves remodeling existing organisms from nature or constructing completely new synthetic organisms for applications such as protein or enzyme production, bioremediation, value-added macromolecule production, and the addition of desirable traits to crops, to name a few.
Golden rice
Golden rice is a genetically modified...
Transformation01:26

Transformation

Microbial communities are dynamic environments where cell lysis releases free DNA into the surroundings. Other cells can take up this extracellular DNA through a process known as transformation.When a cell incorporates this foreign DNA into its genome, resulting in genetic modification, the process is known as transformation. Cells capable of this process are termed competent. Competence can be natural, as observed in certain bacteria and archaea, or artificially induced in the...
Bacterial Transformation01:33

Bacterial Transformation

In 1928, bacteriologist Frederick Griffith worked on a vaccine for pneumonia, which is caused by Streptococcus pneumoniae bacteria. Griffith studied two pneumonia strains in mice: one pathogenic and one non-pathogenic. Only the pathogenic strain killed host mice.Griffith made an unexpected discovery when he killed the pathogenic strain and mixed its remains with the live, non-pathogenic strain. Not only did the mixture kill host mice, but it also contained living pathogenic bacteria that...
Bacterial Transformation01:33

Bacterial Transformation

In 1928, bacteriologist Frederick Griffith worked on a vaccine for pneumonia, which is caused by Streptococcus pneumoniae bacteria. Griffith studied two pneumonia strains in mice: one pathogenic and one non-pathogenic. Only the pathogenic strain killed host mice.Griffith made an unexpected discovery when he killed the pathogenic strain and mixed its remains with the live, non-pathogenic strain. Not only did the mixture kill host mice, but it also contained living pathogenic bacteria that...
Transformers01:26

Transformers

A device that transforms voltages from one value to another using induction is called a transformer. A transformer consists of two separate coils, or windings, wrapped around the same soft iron core. However, they are electrically insulated from each other.
The iron core has a substantial relative permeability. Therefore, the magnetic field lines generated due to the current in one winding are almost entirely confined within the core, such that the same magnetic flux permeates each turn of both...
Transformations of Functions II01:29

Transformations of Functions II

Transformations in mathematics alter the position or orientation of a function’s graph while preserving its fundamental shape. One important type of transformation is the horizontal shift, which involves modifying the input variable within a function’s equation. This operation affects where outputs occur along the horizontal axis but does not alter the function’s overall structure.A horizontal shift is achieved by replacing the input variable x with either x + c or x - c, where c is a constant.

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Concluding remarks.

Bulletin of the New York Academy of Medicine·2009
Same author

Preventing deadly conflict: the critical role of leadership.

Archives of general psychiatry·1999
Same author

Re: "Is Gulf War syndrome due to stress? The evidence reexamined".

American journal of epidemiology·1998
Same author

Toward a strategy for healthy adolescent development.

The American journal of psychiatry·1997
Same author

The urban poverty crisis. An action agenda for children and youth.

The Western journal of medicine·1993
Same author

Crucial opportunities for adolescent health.

The Journal of adolescent health : official publication of the Society for Adolescent Medicine·1993

相关实验视频

Updated: Jul 12, 2026

Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology
09:55

Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology

Published on: September 28, 2022

科学和技术在一个转变的世界.

D A Hamburg

    Science (New York, N.Y.)
    |June 1, 1984
    PubMed
    概括

    由于快速的科学和技术进步,现代生活带来了新的挑战. 美国科学界应该积极解决诸如机构失败和社会偏见等全球性问题.

    科学领域:

    • 社会的转变社会转变.
    • 科学与技术 伦理学 伦理学
    • 全球相互依存的全球性

    背景情况:

    • 科学和技术的快速进步正在重塑人类的生活.
    • 这些进步带来了机遇和意想不到的副作用.
    • 当前的社会结构很难适应这些深刻的变化.

    研究的目的:

    • 突出快速社会转型带来的重大挑战.
    • 识别阻碍适应现代进步的制度不足.
    • 建议美国科学界在解决全球问题方面发挥更积极的作用.

    主要方法:

    • 对社会趋势的定性分析.
    • 审查教育和治理中的机构绩效.
    • 考察全球相互依存和民族中心主义.

    主要成果:

    • 极权主义政权和毁灭性武器的流行.
    • 教育系统不足以为现代世界做好个人准备.
    • 由于偏见,国际机构在管理全球相互依存方面表现不佳.

    结论:

    • 尽管科学进步,但仍然存在重大制度和社会不足.

    相关实验视频

    Last Updated: Jul 12, 2026

    Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology
    09:55

    Bridging the Technology Divide in the COVID-19 Era: Using Virtual Outreach to Expose Middle and High School Students to Imaging Technology

    Published on: September 28, 2022

  • 美国科学界迫切需要更深入地参与这些全球性挑战.
  • 解决民族中心主义和偏见对于有效的全球合作至关重要.