Jove
Visualize
联系我们

相关概念视频

Improving Translational Accuracy02:07

Improving Translational Accuracy

11.6K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
11.6K
Comparing Copy Number Variations and SNPs02:26

Comparing Copy Number Variations and SNPs

11.6K
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
11.6K
Systematic Sampling Method01:17

Systematic Sampling Method

10.3K
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...
10.3K
Cluster Sampling Method01:20

Cluster Sampling Method

11.0K
Appropriate sampling methods ensure 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.
To choose a cluster sample, divide the population into clusters (groups) and then randomly select some of the clusters. All the members from these clusters are in the cluster sample. For example, if you randomly sample four departments from your...
11.0K
Multiple Comparison Tests01:13

Multiple Comparison Tests

3.4K
Multiple comparison test, abbreviated as MCT, is a post hoc analysis generally performed after comparing multiple samples with one or more tests. An MCT will help identify a significantly different sample among multiple samples or a factor among multiple factors.
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
3.4K
Parallel Processing01:20

Parallel Processing

950
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
950

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

From Oxo to Oxyl to Biradical: Systematic Multireference Calculations of Methane Activation at MOF Nodes.

Journal of the American Chemical Society·2026
Same author

Predictors of Massive Transfusion in Adult Blunt Trauma Patients: Analysis of a Nationwide Trauma Registry in Korea.

Journal of Korean medical science·2026
Same author

Multicentric Round Cell Neoplasia with Plasmacytic Differentiation in a Cat with Systemic Progression: Multimodal Imaging and Treatment Response.

Animals : an open access journal from MDPI·2026
Same author

Extrapericardial tamponade following blunt chest trauma treated with subxiphoid uniportal video-assisted thoracoscopic surgery: a case report.

Journal of cardiothoracic surgery·2026
Same author

Inhaled amikacin as a preventive strategy against ventilator-associated pneumonia in a trauma intensive care unit: early evidence from a single-center retrospective cohort study.

Journal of trauma and injury·2026
Same author

MC25: An Accurate Meta Pair-Density Functional for Multiconfiguration Pair-Density Functional Theory and Linearized Pair-Density Functional Theory.

Journal of chemical theory and computation·2025
Same journal

Comparative Pharmacokinetics of Six Bioactive Constituents From Danggui Jixueteng Decoction in Normal and Myelosuppressive Rats.

Analytical science advances·2026
Same journal

Biphasic Extraction of Selected Heavy Metals From Corn With the Aid of Kosmotropic Salts.

Analytical science advances·2026
Same journal

Metabolomic Mapping of Greek Olive Leaves by Untargeted NMR-Based Profiling and LC-HRMS Dereplication.

Analytical science advances·2026
Same journal

Analysis of Two New Flavonoid Glycosides From <i>Zanha golungensis</i> Hiern With COX Inhibition Activity: Structural Elucidation, DFT Calculations, In Vitro and Molecular Docking Assessment.

Analytical science advances·2026
Same journal

A Selective Phenyl Azo Acetate Substrate for Enhanced Carbonic Anhydrase Functional Analysis.

Analytical science advances·2026
Same journal

A Robust Cost-Effective Spectrophotometric Method for Nb Determination in Refractory Nb-doped Gadolinium Zirconate: Overcoming Matrix Dissolution Challenges.

Analytical science advances·2026
查看所有相关文章
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

相关实验视频

Updated: May 2, 2026

Digital PCR-based Competitive Index for High-throughput Analysis of Fitness in Salmonella
07:11

Digital PCR-based Competitive Index for High-throughput Analysis of Fitness in Salmonella

Published on: May 13, 2019

9.7K

高副本数量探测器选择和交叉结合减少的计算框架

Younghwan Kim1, Swomitra Kumar Mohanty1,2

  • 1Department of Materials Science and Engineering The University of Utah Salt Lake City Utah USA.

Analytical science advances
|August 29, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种使用重复序列的新型DNA探针设计,以提高检测Mycobacterium结核病的生物传感器灵敏度. 这种方法增强了无PCR信号,改善了传染病的诊断.

关键词:
DNA生物传感器无放大检测计算探测器设计高副本数序列病原体检测

更多相关视频

Deciphering High-Resolution 3D Chromatin Organization via Capture Hi-C
09:32

Deciphering High-Resolution 3D Chromatin Organization via Capture Hi-C

Published on: October 14, 2022

3.7K
In Vitro Selection of Engineered Transcriptional Repressors for Targeted Epigenetic Silencing
10:44

In Vitro Selection of Engineered Transcriptional Repressors for Targeted Epigenetic Silencing

Published on: May 5, 2023

1.5K

相关实验视频

Last Updated: May 2, 2026

Digital PCR-based Competitive Index for High-throughput Analysis of Fitness in Salmonella
07:11

Digital PCR-based Competitive Index for High-throughput Analysis of Fitness in Salmonella

Published on: May 13, 2019

9.7K
Deciphering High-Resolution 3D Chromatin Organization via Capture Hi-C
09:32

Deciphering High-Resolution 3D Chromatin Organization via Capture Hi-C

Published on: October 14, 2022

3.7K
In Vitro Selection of Engineered Transcriptional Repressors for Targeted Epigenetic Silencing
10:44

In Vitro Selection of Engineered Transcriptional Repressors for Targeted Epigenetic Silencing

Published on: May 5, 2023

1.5K

科学领域:

  • 生物技术
  • 基因组学
  • 生物传感器技术

背景情况:

  • 在诊断和监测中, DNA 探测器的设计至关重要.
  • 针对低复制序列的传统探测器限制了检测灵敏度.
  • 传统方法中的有限混合事件阻碍了信号放大.

研究的目的:

  • 开发一种新的DNA探针设计策略, 以提高生物传感器的灵敏度.
  • 在没有PCR的情况下利用高度重复的DNA序列进行信号放大.
  • 为设计敏感和特定的DNA探测器创建一个计算框架.

主要方法:

  • 开发了一种定制的生物信息学工具,用于识别Mycobacterium结核病基因组中的重复DNA序列.
  • 使用BLAST对智人基因组进行交叉引用,以尽量减少宿主交叉反应.
  • 分析了一种特定的23bp重复序列的杂交潜力和特异性.

主要成果:

  • 在M.结核病中重复39次.
  • 这一序列与人类DNA只有78%的相同性,并且存在于人类基因组中的两个副本.
  • 与人类cfDNA相比,所选的探针显示出明显更强的杂交信号的潜力.

结论:

  • 这种新的探测器设计策略通过准重复的DNA序列来增强生物传感器的灵敏度.
  • 这种计算方法为开发高灵敏度生物传感器提供了强大的框架.
  • 这种方法有助于更有效的传染病诊断,环境监测和临床检测.