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

Oxygen Requirements and Growth Patterns01:29

Oxygen Requirements and Growth Patterns

1.5K
Microorganisms exhibit diverse oxygen requirements and growth patterns driven by their metabolic strategies and environmental adaptations. Oxygen, while essential for many organisms, can also be toxic under certain conditions, shaping how microorganisms grow and survive.Oxygen Requirements of MicroorganismsMicroorganisms are classified based on their ability to use or tolerate oxygen:● Obligate aerobes like Mycobacterium tuberculosis need oxygen for energy production, as it serves as the...
1.5K
Population Growth00:57

Population Growth

28.7K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
28.7K
Cell Size01:22

Cell Size

132.3K
Cell sizes vary widely among and within organisms. Bacterial cells range between 1-10 micrometers (μm)and are considerably smaller than most eukaryotic cells. The smallest bacteria are 0.1 μm in diameter—about a thousand times smaller than eukaryotic cells, which typically range from 10-100 μm.
Surface Area
Cells can take in nutrients and water via diffusion through the plasma membrane itself or through specific channels in the membrane. The area of the membrane surrounding...
132.3K
Fixed Action Patterns01:06

Fixed Action Patterns

17.7K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
17.7K
Patterns of Fever01:26

Patterns of Fever

4.0K
Before understanding the types and patterns of fever, it is essential to know its phases.
4.0K
Brick Sizes01:21

Brick Sizes

354
Brick sizing plays a crucial role in construction, influencing both the aesthetics and structural integrity of buildings. Bricks are defined by three dimensions: width, thickness, and length. They are commonly designed to fit modular measurements, typically in multiples of 4 inches or 8 inches in width, to facilitate uniform construction and compatibility with other building materials.
Modular bricks are the most common type and are sized to include the mortar joint, which is essential for...
354

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

Atmospheric CO₂-to-acetaldehyde artificial photosynthesis in metallo hydrogen-bonded organic frameworks.

Nature communications·2026
Same author

Suppressing Polysulfide Shuttling and Enhancing Reaction Kinetics of Lithium-Sulfur Batteries through the Architecture of a 3D TiO<sub>2</sub>@CMK-3 Composite Cathode.

ACS applied materials & interfaces·2026
Same author

Angstrom-scale distance-dependent synergy in clusters <i>via</i> atom-by-atom regulation for enhanced photocatalytic CO<sub>2</sub> reduction.

Nanoscale·2026
Same author

Correlation Between Fat Attenuation Index and Major Adverse Cardiovascular Events: A Systematic Review and Meta-Analysis.

Reviews in cardiovascular medicine·2026
Same author

Structural Fusion-Induced Activity Suppression in Copper Nanoclusters for Electrocatalytic Nitrate Reduction.

Angewandte Chemie (International ed. in English)·2026
Same author

Unraveling defect-mediated ion transport behavior in anti-perovskite solid-state electrolytes <i>via</i> machine learning molecular dynamics simulations.

Physical chemistry chemical physics : PCCP·2026

相关实验视频

Updated: Feb 14, 2026

Surgical Size Reduction of Zebrafish for the Study of Embryonic Pattern Scaling
06:31

Surgical Size Reduction of Zebrafish for the Study of Embryonic Pattern Scaling

Published on: May 3, 2019

7.3K

两个尺寸的增长模式从AU22(SR)18

Jiao Peng1, Yingzi Tan1, Linghui Lu1

  • 1Department of Biology and Chemistry, Hunan University of Science and Engineering, Yongzhou 425199, China.

Inorganic chemistry
|February 13, 2026
PubMed
概括

现在更好地理解了金纳米集群的尺寸增长. 研究人员确定了两种不同的生长途径和结构进化模式,有助于精确的合成.

更多相关视频

Microwave-assisted One-pot Synthesis of N-succinimidyl-4-[18F]fluorobenzoate [18F]SFB
08:33

Microwave-assisted One-pot Synthesis of N-succinimidyl-4-[18F]fluorobenzoate [18F]SFB

Published on: June 28, 2011

13.4K
The Olfactory System as a Model to Study Axonal Growth Patterns and Morphology In Vivo
08:29

The Olfactory System as a Model to Study Axonal Growth Patterns and Morphology In Vivo

Published on: October 30, 2014

11.4K

相关实验视频

Last Updated: Feb 14, 2026

Surgical Size Reduction of Zebrafish for the Study of Embryonic Pattern Scaling
06:31

Surgical Size Reduction of Zebrafish for the Study of Embryonic Pattern Scaling

Published on: May 3, 2019

7.3K
Microwave-assisted One-pot Synthesis of N-succinimidyl-4-[18F]fluorobenzoate [18F]SFB
08:33

Microwave-assisted One-pot Synthesis of N-succinimidyl-4-[18F]fluorobenzoate [18F]SFB

Published on: June 28, 2011

13.4K
The Olfactory System as a Model to Study Axonal Growth Patterns and Morphology In Vivo
08:29

The Olfactory System as a Model to Study Axonal Growth Patterns and Morphology In Vivo

Published on: October 30, 2014

11.4K

科学领域:

  • * 纳米材料科学 科学 纳米材料科学
  • * 计算化学 计算机化学
  • * 表面科学 表面科学

背景情况:

  • *尺寸增长是纳米材料合成中常见的现象,特别是在金纳米集群中.
  • * 由于结构数据有限,对这种增长的基本机制的了解很少.
  • * 由于其独特的特性,合物保护的金纳米集群具有显著的兴趣.

研究的目的:

  • * 为了阐明由连接体保护的金纳米集群的尺寸增长机制.
  • * 根据已知较小的金纳米集群来预测较大的金纳米集群的结构.
  • * 为控制合成金纳米集群提供理论基础.

主要方法:

  • *结构分析以预测较大的金纳米集群 (Au42(SR) 30和Au52(SR) 36的配置.
  • *密度函数理论 (DFT) 调查,以研究尺寸增长途径.
  • * 在集群生长过程中识别结构演变模式.

主要成果:

  • *发现了两个不同的尺寸增长途径:直接聚合和渐进的2e跳跃过程.
  • *2e跳跃过程通过中间体将较小的集群 (例如,Au22(SR) 18) 转化为较大的集群 (例如,Au52(SR) 36).
  • *确定了两个结构演变模式:Au3+或Au42+单元的添加,以及Au13单元的融合.

结论:

  • *这项研究增强了对带保护黄金纳米集群中尺寸增长的基本理解.
  • * 发现为原子精确合成金纳米集群提供了理论基础.
  • *阐明生长机制对于定制纳米集群属性至关重要.