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相关概念视频

Pulse rhythm01:30

Pulse rhythm

1.4K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.4K
Protein-protein Interfaces02:04

Protein-protein Interfaces

14.7K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
14.7K
Nursing Interventions I: Taxonomy of Nursing Interventions01:03

Nursing Interventions I: Taxonomy of Nursing Interventions

3.9K
Nursing interventions are chosen as part of the planning process to achieve patient outcomes. Once nursing diagnoses are determined, the goals and outcomes are specified, then the nursing interventions are selected and individualized according to the patient's situation.
A nursing intervention is a treatment or action based on scientific concepts and knowledge from the nursing, behavioral, and physical sciences. Identifying and prioritizing nursing interventions based on the desired outcome...
3.9K
Nursing Interventions II: Selecting and Classifying the Nursing Interventions01:29

Nursing Interventions II: Selecting and Classifying the Nursing Interventions

3.3K
Creating and executing a nursing diagnosis helps nurses plan care and guide patient, family, and community interventions. They are developed based on a patient's physical evaluation and support measuring the outcomes. It is not recommended to select random interventions throughout the planning process. Instead, consider the following six essential factors when choosing interventions:
3.3K
Disturbances in Heart Rhythm01:29

Disturbances in Heart Rhythm

2.9K
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
2.9K
ECG Interpretation of Rhythms01:24

ECG Interpretation of Rhythms

13.8K
An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
13.8K

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相关实验视频

Updated: Feb 1, 2026

Using an EEG-Based Brain-Computer Interface for Virtual Cursor Movement with BCI2000
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Using an EEG-Based Brain-Computer Interface for Virtual Cursor Movement with BCI2000

Published on: July 29, 2009

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非侵入性石墨烯脑电脑接口集成EEG记录和声光刺激以进行节奏干预.

Yongtian Ma1, Hongji Li1, Wei Li1

  • 1Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin Key Laboratory of Life and Health Detection, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin, P. R. China.

Advanced healthcare materials
|January 31, 2026
PubMed
概括

这项研究引入了新的吸附垂直石墨烯 (Na-VG) 电极,用于稳定,长期的大脑与计算机接口 (BCI). 这些电极能够对认知和情绪健康进行非侵入性监测和干预.

关键词:
在NA-doped中使用.大脑 计算机接口声音光刺激的刺激.垂直石墨烯是一种垂直石墨烯.无线EEG头带是无线的

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Noninvasive EEG Recordings from Freely Moving Piglets
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Noninvasive EEG Recordings from Freely Moving Piglets

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相关实验视频

Last Updated: Feb 1, 2026

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科学领域:

  • 生物医学工程 生物医学工程
  • 神经科学是一个神经科学.
  • 材料科学 材料科学 材料科学

背景情况:

  • 非侵入性的可穿戴脑电脑接口 (BCI) 对于神经康复和健康监测至关重要.
  • 由于需要稳定,长期的干燥/半干燥电极和轻量级硬件,BCI的广泛采用受到阻碍.

研究的目的:

  • 开发用于增强BCI性能的新型添加垂直石墨烯 (Na-VG) 电极.
  • 创建一个稳定,轻量级,可穿戴的BCI系统,用于监测和非侵入性干预.

主要方法:

  • 使用汗水和组织液体作为电解质制造Na-VG电极.
  • 评估20通道EEG上限的电极皮肤阻抗和长期稳定性 (36天).
  • 开发一种可穿戴的Na-VG头带BCI,集成声光刺激和EEG采集.

主要成果:

  • 实现了极低的电极-皮肤阻抗 (4.22 ± 0.50 kΩ在10 Hz).
  • 在36天内证明了高α-节律信号噪声比 (5.06-14.22dB).
  • 警觉,神经活动,心率,情绪和兴奋 (84-100%中等水平比例) 在协调40 Hz声音和10 Hz光刺激下显著改善.

结论:

  • Na-VG电极为长期,稳定和轻量化BCI应用提供了一种新的策略.
  • 开发的可穿戴BCI系统有效地监测和干预情绪和认知状态.
  • 这项技术对神经和心理疾病的非侵入性监测和治疗具有前景.