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

Proliferative Phase01:20

Proliferative Phase

1.4K
The proliferative phase typically occurs after menstruation and lasts between 6 to 13 days in a standard 28-day cycle. This phase involves the reconstruction of the endometrium, guided by estrogen produced by the developing ovarian follicle.
Notably, the stratum basale, the basal layer of the endometrium, including the basal parts of the uterine glands, remains unaffected by menstruation. Stem cells in this layer undergo mitosis, regenerating the stratum functionalis and thickening the...
1.4K
Review and Preview01:10

Review and Preview

8.4K
In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
8.4K
Review and Preview01:13

Review and Preview

11.1K
Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
11.1K
Random and Systematic Errors01:20

Random and Systematic Errors

14.8K
Scientists always try their best to record measurements with the utmost accuracy and precision. However, sometimes errors do occur. These errors can be random or systematic. Random errors are observed due to the inconsistency or fluctuation in the measurement process, or variations in the quantity itself that is being measured. Such errors fluctuate from being greater than or less than the true value in repeated measurements. Consider a scientist measuring the length of an earthworm using a...
14.8K
Systematic Sampling Method01:17

Systematic Sampling Method

13.0K
Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
Systematic sampling is one of the simplest methods...
13.0K
Propagation of Uncertainty from Systematic Error01:10

Propagation of Uncertainty from Systematic Error

1.4K
The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this...
1.4K

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

Microsurgical Treatment of Lenticulostriate Artery Aneurysms: A Single-Surgeon Case Series and Systematic Review of the Literature.

Operative neurosurgery (Hagerstown, Md.)·2026
Same author

Cerebrovascular vulnerability and fibrosis in human brain aneurysms.

Nature neuroscience·2026
Same author

Interobserver Agreement of R<sub>2</sub>eD Brain Arteriovenous Malformation Scoring.

Neurosurgery practice·2026
Same author

Malignant Melanoma Presenting as a Cavernous Malformation: Systematic Literature Review and Report of 4 Illustrative Cases.

World neurosurgery·2026
Same author

International multi-center study to quantify the effect of deep venous drainage after surgical resection of Spetzler-Martin Grade II-III brain arteriovenous malformations.

Neurosurgical review·2026
Same author

Where Are We Now? Benchmarking Large Language Models (LLMs) in Computed Tomography (CT)-Based Detection of Intracranial Hemorrhage.

Cureus·2026

相关实验视频

Updated: Jan 28, 2026

Quantification of Vascular Parameters in Whole Mount Retinas of Mice with Non-Proliferative and Proliferative Retinopathies
12:28

Quantification of Vascular Parameters in Whole Mount Retinas of Mice with Non-Proliferative and Proliferative Retinopathies

Published on: March 12, 2022

4.3K

增殖性血管病变:一个系统性审查.

Nolan J Brown1, Brian V Lien1, Jeff Ehresman2

  • 1Department of Neurological Surgery University of California-Irvine Orange CA.

Stroke (Hoboken, N.J.)
|January 26, 2026
PubMed
概括

大脑增殖性血管病变 (CPA) 是一种独特的血管异常,其特征是失调的血管生成. 目前的治疗方法各不相同,最常见的是保守的管理和栓塞,但手术干预的有效性尚不清楚.

关键词:
动脉瘤是一个动脉瘤.这是一个异常异常.这是一种动脉静脉形形.大脑增殖血管学血栓塞栓是什么意思 血栓塞栓是什么意思发生出血 发生出血心脏病发作 心脏病发作缺血缺血症是什么意思 缺血缺血症重新血管化的过程.

更多相关视频

Establishment of Proliferative Tetraploid Cells from Nontransformed Human Fibroblasts
10:04

Establishment of Proliferative Tetraploid Cells from Nontransformed Human Fibroblasts

Published on: January 8, 2017

7.6K
Author Spotlight: Demonstrating Systematic Endobronchial Ultrasound to New Endoscopists
05:22

Author Spotlight: Demonstrating Systematic Endobronchial Ultrasound to New Endoscopists

Published on: August 11, 2023

2.8K

相关实验视频

Last Updated: Jan 28, 2026

Quantification of Vascular Parameters in Whole Mount Retinas of Mice with Non-Proliferative and Proliferative Retinopathies
12:28

Quantification of Vascular Parameters in Whole Mount Retinas of Mice with Non-Proliferative and Proliferative Retinopathies

Published on: March 12, 2022

4.3K
Establishment of Proliferative Tetraploid Cells from Nontransformed Human Fibroblasts
10:04

Establishment of Proliferative Tetraploid Cells from Nontransformed Human Fibroblasts

Published on: January 8, 2017

7.6K
Author Spotlight: Demonstrating Systematic Endobronchial Ultrasound to New Endoscopists
05:22

Author Spotlight: Demonstrating Systematic Endobronchial Ultrasound to New Endoscopists

Published on: August 11, 2023

2.8K

科学领域:

  • 神经学 神经学
  • 血管外科 血管外科
  • 放射学 放射学是一门学科.

背景情况:

  • 大脑增殖性血管病变 (CPA) 是一种明显的血管异常,与动脉静脉形异常不同,原因是血管生成失调,缺乏真正的.
  • CPA的特点是缺血,血管生成和异常 perfusion 的循环,导致异常的血液流动模式.
  • 从历史上看,CPA治疗一直依赖于保守的管理,对其自然历史的理解有限,这阻碍了有效的干预.

研究的目的:

  • 系统地审查关于大脑增殖性血管病变 (CPA) 的现有文献.
  • 在CPA病例中分析患者人口统计,表现出症状和神经学缺陷.
  • 评估CPA的各种治疗方式的有效性和结果.

主要方法:

  • 对四个数据库进行了系统搜索,以确定相关研究.
  • 提取的数据包括研究样本大小,出版年份,患者年龄和性别,临床表现和神经状态.
  • 还提取了干预类型,随访持续时间和患者结果 (报告和功能).

主要成果:

  • 该审查包括48项研究,涵盖105个CPA病例,主要是病例报告和系列.
  • 保守管理 (53.4%) 和内血管栓塞 (36.9%) 是最常见的治疗方式.
  • 内出血发生在11名患者中,10名患者接受了减压性脑膜切除术;在5名患者中使用了再血管化手术.

结论:

  • 尽管研究很少,但CPA与动脉静脉形形有着不同的特征.
  • 对于CPA的手术干预的有效性仍未确定.
  • 需要进一步的研究来澄清CPA的自然史和最佳治疗策略.