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

Tracheostomy Care I: Pre-procedural Steps01:16

Tracheostomy Care I: Pre-procedural Steps

1.3K
A tracheostomy is a surgical technique that involves making an incision in the neck to provide access to the trachea. It is frequently used in medical conditions such as airway obstruction and prolonged mechanical ventilation. Effective nursing management is crucial for the long-term success of a tracheostomy.
Required Equipment
The equipment necessary for tracheostomy care includes:
1.3K
Tracheostomy Suctioning I: Pre-Procedural Steps01:26

Tracheostomy Suctioning I: Pre-Procedural Steps

2.4K
Tracheostomy suctioning is a critical procedure healthcare professionals perform to maintain a patent airway in patients with a tracheostomy tube. This procedure is necessary when secretions accumulate in the airway, causing respiratory distress. Here is a step-wise procedural guide for performing tracheostomy suctioning using an open system.
Equipment Required
First, gather all necessary equipment: a sterile suction catheter, a sterile disposable container, sterile gloves, a towel or...
2.4K
Handwashing II: Pre-procedure and Initial Procedure Steps01:19

Handwashing II: Pre-procedure and Initial Procedure Steps

1.6K
The pre-procedure steps of handwashing include removing jewelry and rolling up sleeves. However, many organizations allow staff to wear wedding rings.
The hand washing procedure itself includes the following steps. First, cover cuts, if any, on hands with a waterproof dressing. Cuts and abrasions can become contaminated with bacteria hindering the ability to clean the area thoroughly. In addition, repeated hand washing can worsen an injury.  The nails must be short and clean, without nail...
1.6K
Chromosome Structure02:40

Chromosome Structure

26.6K
A functional eukaryotic chromosome must contain three elements: a centromere, telomeres, and numerous origins of replication.
The centromere is a DNA sequence that links sister chromatids. This is also where kinetochores, protein complexes to which spindle microtubules attach, are constructed after the chromosome is replicated. The kinetochores allow the spindle microtubules to move the chromosomes within the cell during cell division.
Telomeres consist of non-coding repetitive nucleotide...
26.6K
Lampbrush Chromosomes01:51

Lampbrush Chromosomes

8.7K
In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
8.7K
Polytene Chromosomes02:04

Polytene Chromosomes

11.0K
Polytene chromosomes are giant interphase chromosomes with several DNA strands placed side by side. They were discovered in the year 1881 by Balbiani in salivary glands, intestine, muscles, malpighian tubules, and hypoderm of larvae Chironomus plumosus. Hence, these are also called "Salivary gland chromosomes." These are found in insects of the order Diptera and Collembola; in certain organs of mammals; and synergids, antipodes of flowering plants. Polytene chromosomes are also...
11.0K

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

Prediction of Depression in Women With Metabolic Dysfunction-Associated Fatty Liver Disease Using Routine Blood Tests: A Five-Year Longitudinal Analysis From the UK Biobank.

Alpha psychiatry·2026
Same author

Oral microbiome modulation mitigates hyperglycemia exacerbation in gestational diabetes mellitus.

Nature communications·2026
Same author

Starmate: A Lightweight AI Assistant for Autism Caregivers Developed and Evaluated Through a User-Centered Mixed-Methods Framework.

Journal of medical systems·2026
Same author

Reproducible bicarbonate thresholds predict critically ill patient mortality in an international personalized survival study.

iScience·2026
Same author

Dysregulated connectivity configuration of functional network model in first-episode, treatment-naive adolescents with major depressive disorder.

BMC psychiatry·2026
Same author

Adaptive Phoneme State Learning Architecture for Enhanced Speech Recognition Using Backpropagation Neural Network and Hidden Markov Model.

F1000Research·2026

相关实验视频

Updated: Feb 8, 2026

A Step-by-Step Implementation of DeepBehavior, Deep Learning Toolbox for Automated Behavior Analysis
05:41

A Step-by-Step Implementation of DeepBehavior, Deep Learning Toolbox for Automated Behavior Analysis

Published on: February 6, 2020

9.9K

在染色体图像分类中进行ImageNet预训练和两步转移学习.

Tianhao Chen1, Can Xie1, Wenhua Zhang2

  • 1Faculty of Applied Sciences, Macao Polytechnic University, Macao SAR, 999078, China.

Scientific reports
|February 6, 2026
PubMed
概括

双步转移学习提高了染色体图像分类,特别是使用现代架构的低质量Q带数据. 对于高质量的G频段数据集,ImageNet的预训练就足够了.

关键词:
染色体卡里约类型的形成图像的分类图像的分类.图像网 图像网 图像网预培训 预培训 预培训两个步骤的转移学习.

更多相关视频

DNA Virus Detection System Based on RPA-CRISPR/Cas12a-SPM and Deep Learning
04:17

DNA Virus Detection System Based on RPA-CRISPR/Cas12a-SPM and Deep Learning

Published on: May 10, 2024

1.6K
Step By Step: Microsurgical training method combining two nonliving animal models
05:25

Step By Step: Microsurgical training method combining two nonliving animal models

Published on: May 9, 2015

15.9K

相关实验视频

Last Updated: Feb 8, 2026

A Step-by-Step Implementation of DeepBehavior, Deep Learning Toolbox for Automated Behavior Analysis
05:41

A Step-by-Step Implementation of DeepBehavior, Deep Learning Toolbox for Automated Behavior Analysis

Published on: February 6, 2020

9.9K
DNA Virus Detection System Based on RPA-CRISPR/Cas12a-SPM and Deep Learning
04:17

DNA Virus Detection System Based on RPA-CRISPR/Cas12a-SPM and Deep Learning

Published on: May 10, 2024

1.6K
Step By Step: Microsurgical training method combining two nonliving animal models
05:25

Step By Step: Microsurgical training method combining two nonliving animal models

Published on: May 9, 2015

15.9K

科学领域:

  • 计算生物学是一种计算生物学.
  • 医学成像分析分析 医学成像分析
  • 机器学习用于基因组学.

背景情况:

  • 染色体图像分类通常使用ImageNet预训练.
  • 对于染色体分类,特别是与相关染色技术相关的中间域转移学习的实用性尚未得到充分证实.

研究的目的:

  • 通过使用Q频段和G频段数据集评估染色体图像分类的两步转移学习的有效性.
  • 为了比较不同架构家族和培训方法的性能增长.

主要方法:

  • 实现了两步转移学习,在最终任务之前在中间域微调分类器.
  • 评估Q频段 (BioImLab) 和G频段 (CIR) 染色体数据集的性能,使用每一个作为对方的中间域.
  • 测试了11个建筑家族和3个培训方法.

主要成果:

  • 现代架构 (ConvNeXt,Swin Transformer,ViT,MobileNetV3) 在数据质量有限的Q频段分类上显示出显著的宏F1收益 (+0.8至+3.3个百分点).
  • 传统的CNN显示Q频段的改善很小或没有任何改善.
  • 在高质量的G频段数据集上,所有架构都实现了接近和的性能,从两步传输中获得的收益最小 (+0.1至+0.7个百分点).
  • 在两个转移方向上都观察到持续的改善.

结论:

  • 当域相似性很高,目标数据质量有限时,双步转移学习可以提高染色体分类性能,特别是在现代架构中.
  • 仅 ImageNet 前期培训就足以提供高质量的染色体数据集.
  • 架构选择对于最大化染色体图像分析中转移学习的好处至关重要.