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

The Scientific Method01:32

The Scientific Method

224.3K
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...
224.3K
Psychology as a Science01:13

Psychology as a Science

665
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...
665
Biodiversity and Human Values01:24

Biodiversity and Human Values

13.0K
Human civilization relies on biodiversity in many ways. Sudden changes in species biodiversity result in environmental changes that can modify weather patterns and therefore human civilizations.
13.0K
Solving Problems in Physics02:32

Solving Problems in Physics

5.7K
Problem-solving is the ability to apply general physical principles to specific situations, usually expressed by equations. It is an essential skill in physics, and can also be useful for applying physics in everyday life as well. Analytical skills and problem-solving abilities can be applied to new situations, compared to a list of facts, which can never be extensive enough to include every possible circumstance. To solve physics problems, a certain amount of creativity and insight is...
5.7K
Ampere's Law: Problem-Solving01:31

Ampere's Law: Problem-Solving

3.5K
Ampere's law states that for any closed looped path, the line integral of the magnetic field along the path equals the vacuum permeability times the current enclosed in the loop. If the fingers of the right hand curl along the direction of the integration path, the current in the direction of the thumb is considered positive. The current opposite to the thumb direction is considered negative.
Specific steps need to be considered while calculating the symmetric magnetic field distribution...
3.5K
Three-Dimensional Force System:Problem Solving01:30

Three-Dimensional Force System:Problem Solving

625
A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is commonly encountered in physics and engineering, where it is necessary to calculate the resultant force on the system, which can then be used to predict or analyze the behavior of the object or structure under consideration.
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
625

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

Performance of the 2024 McDonald Criteria in Patients Under Evaluation for Suspected Multiple Sclerosis.

Neurology·2026
Same author

In Vivo Mapping of Catecholaminergic Loss and Iron Deposition in Huntington's Disease.

Movement disorders : official journal of the Movement Disorder Society·2026
Same author

Loss of serotonergic function in carriers of PRKN mutations: a [<sup>11</sup>C]DASB PET study.

European journal of nuclear medicine and molecular imaging·2026
Same author

Comparison of Left Ventricular Unloading Strategies During Extracorporeal Membrane Oxygenation.

ASAIO journal (American Society for Artificial Internal Organs : 1992)·2025
Same author

An in vivo PET/CT investigation of mitochondrial complex 1, sigma 1, and synaptic vesicle 2 A in patients with amyotrophic lateral sclerosis.

Neurobiology of disease·2025
Same author

Effectiveness of Disease-Modifying Therapies in Patients With Late-Onset Relapsing-Remitting Multiple Sclerosis.

Neurology·2025

相关实验视频

Updated: Jun 5, 2025

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

1.6K

科学与美国的挑战

Heather Wilson1

  • 1Heather Wilson is president of The University of Texas at El Paso, El Paso, TX, USA; a member of the National Science Board; and former secretary of the United States Air Force.

Science (New York, N.Y.)
|December 5, 2024
PubMed
概括

美国面临着重大的全球科学挑战, 积极的监测和战略发展对于国家安全和竞争力至关重要.

科学领域:

  • 全球科学竞争
  • 技术的进步
  • 国家安全战略

背景情况:

  • 美国正面临前所未有的全球性科学挑战,
  • 目前的国家战略不足以应对不断变化的国际科学和技术竞争.

研究的目的:

  • 强调美国迫切需要重新评估和加强对科学技术发展的态度.
  • 倡导采取主动措施,防止技术惊喜,弥合关键技术差距.

主要方法:

  • 分析当前的全球科学和技术环境.
  • 评估美国在国际竞争对手中的地位.
  • 确定需要战略重点的关键技术领域.

主要成果:

  • 美国没有充分应对当前的科学挑战.
  • 在关键技术方面存在很大的差距,而且正在扩大.
  • 技术惊喜对国家安全和经济稳定构成重大风险.

结论:

  • 立即实施全面的科学进展监测战略至关重要.
  • 为了保持全球竞争力,必须制定有针对性的战略来弥补关键的技术差距.

更多相关视频

Author Spotlight: Tackling Challenges in Synthetic Cell Engineering
10:56

Author Spotlight: Tackling Challenges in Synthetic Cell Engineering

Published on: April 12, 2024

985
Ole Isacson: Development of New Therapies for Parkinson's Disease
23:53

Ole Isacson: Development of New Therapies for Parkinson's Disease

Published on: April 29, 2007

7.9K

相关实验视频

Last Updated: Jun 5, 2025

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

1.6K
Author Spotlight: Tackling Challenges in Synthetic Cell Engineering
10:56

Author Spotlight: Tackling Challenges in Synthetic Cell Engineering

Published on: April 12, 2024

985
Ole Isacson: Development of New Therapies for Parkinson's Disease
23:53

Ole Isacson: Development of New Therapies for Parkinson's Disease

Published on: April 29, 2007

7.9K
  • 新政府必须采取积极的态度,