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相关概念视频

Blood Pressure01:24

Blood Pressure

3.2K
The movement of blood in a human body, commonly referred to as blood flow, is determined by the volume of blood that traverses a certain section of the bodily system per unit time. It is the rhythmic contraction of the heart's ventricles that primarily instigates this movement. As the ventricles contract, blood is forced into the prominent arteries, which then flow from areas of greater pressure to lower pressure areas. This movement continues into smaller arteries and arterioles and...
3.2K
ATP Driven Pumps II: P-type Pumps01:34

ATP Driven Pumps II: P-type Pumps

4.9K
The P-type pumps are a large family of integral membrane transporter ATPases. They are divided into five major types based on substrate specificity, from I to V.
A typical P-type pump has three cytosolic domains: nucleotide-binding (N), phosphorylation (P), and activator (A) domains. These domains are connected to the membrane-spanning helices by short amino acid segments. ATP hydrolysis and covalent phosphoenzyme intermediate formation are crucial parts of the catalytic cycle. At the highly...
4.9K
Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

1.1K
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
1.1K
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

1.0K
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
1.0K
Postsynaptic Potential (PSP)01:32

Postsynaptic Potential (PSP)

2.8K
Postsynaptic potential (PSP) refers to a change in the electrical potential of a neuron when neurotransmitters released by presynaptic neurons bind to postsynaptic receptors. This potential can either be excitatory, leading to depolarization and ultimately action potential generation, or inhibitory, leading to hyperpolarization and suppression of the postsynaptic neuron.
There are two types of receptors: ionotropic and metabotropic.
The ionotropic receptor is the membrane protein that has an...
2.8K
Sites for measruring blood pressure01:21

Sites for measruring blood pressure

1.9K
Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
1.9K

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相关实验视频

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Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice
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Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice

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来自 BPS 的 BPS

Yi Huang1, Dongdong Chu2,3, Yihan Yun2,3

  • 1School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China. yongzhang@hit.edu.cn.

Dalton transactions (Cambridge, England : 2003)
|June 5, 2023
PubMed
概括
此摘要是机器生成的。

将 (Na+) 和 (K+) 等金属离子引入-硫酸BPS4 (BPS) 中,创造了新的四级材料 (ABPS). 这些新材料具有更宽的带隙,增强光学性能.

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Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients
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Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions
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Particles without a Box: Brush-first Synthesis of Photodegradable PEG Star Polymers under Ambient Conditions

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相关实验视频

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Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice
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科学领域:

  • 固态无机化学 固态无机化学
  • 材料科学 是一种材料科学.
  • 晶体工程 晶体工程

背景情况:

  • 阴离子控制的晶体结构是调整光学材料性能的关键.
  • 硫酸BPS4 (BPS) 作为结构修改的基本模板.

研究的目的:

  • 研究-硫酸盐在金属离子合并后的合成和结构演变.
  • 探索阴离子引入对这些材料带隙和光学性能的影响.

主要方法:

  • 使用BPS作为模板,合成新的四级二酸盐,AB3P2S10 (A = Na,K) (ABPS),使用BPS作为模板.
  • 由此产生的晶体结构的结构特征和分析.
  • 理论计算以了解电子结构和带隙修改.

主要成果:

  • 成功合成了第一个四级二酸盐,AB3P2S10 (ABPS).
  • 离子骨架从BPS中的1D链转变为ABPS中的0D集群.
  • 带隙显著增加,从3.30 eV (BPS) 增加到3.42 eV (Na-ABPS) 和3.49 eV (K-ABPS).

结论:

  • 金属酸 (Na+,K+) 有效地将BPS中的无限链分解成离散的[B3P2S10]集群.
  • 阴离子插入将电子定位在[BS4]和[PS4]单元内,导致带隙扩大和改善光学性能.
  • 这项研究扩展了-硫酸的结构化学,并证明了离子键对共价框架和光学行为的影响.