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相关概念视频

Atomic Nuclei: Types of Nuclear Relaxation01:28

Atomic Nuclei: Types of Nuclear Relaxation

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Nuclear relaxation restores the equilibrium population imbalance and can occur via spin–lattice or spin–spin mechanisms, which are first-order exponential decay processes.
In spin–lattice or longitudinal relaxation, the excited spins exchange energy with the surrounding lattice as they return to the lower energy level. Among several mechanisms that contribute to spin–lattice relaxation, magnetic dipolar interactions are significant. Here, the excited nucleus transfers...
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Thermodynamic Potentials01:26

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Thermodynamic potentials are state functions that are extremely useful in analyzing a thermodynamic system. They have dimensions of energy. The four important thermodynamic potentials are internal energy, enthalpy, Helmholtz free energy, and Gibbs free energy. These thermodynamic potentials can be expressed using two of the following variables: pressure, volume, temperature, and entropy. These two variables are expressed as the rate of change of the thermodynamic potential with respect to other...
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Skeletal muscle relaxants are a group of drugs that can reduce muscle stiffness and induce temporary paralysis to relieve pain. These agents can act centrally to reduce muscle tone or spasms in painful conditions such as multiple sclerosis (MS), amyotrophic lateral sclerosis (ALS), or spinal injuries; they are called antispasmodics or spasmolytics.
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In the quest to identify a property that may reliably predict the spontaneity of a process, a promising candidate has been identified: entropy. Processes that involve an increase in entropy of the system (ΔS > 0) are very often spontaneous; however, examples to the contrary are plentiful. By expanding consideration of entropy changes to include the surroundings, a significant conclusion regarding the relation between this property and spontaneity may be reached. In thermodynamic models, the...
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Activity is the measure of the effective concentration of the species in solution. It can be expressed as the product of the molar concentration of the species and its activity coefficient. The activity coefficient is a dimensionless quantity and depends on the total ionic strength of the solution.
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A thermodynamic system is a set of objects whose thermodynamic properties are of interest. The system is considered to be embedded in its surroundings or the environment. The system and its environment can exchange heat and do work on each other through a boundary that separates them. However, the immediate surroundings of the system interact with it directly and therefore have a much stronger influence on its behavior and properties.
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Updated: Jan 9, 2026

Mechanical Control of Relaxation Using Intact Cardiac Trabeculae
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可解释的热力学基于分数的放松游览分类.

Benjamin Kuznets-Speck1,2,3,4, Jaekwon Jung1,2,3,4,5, Pornchanan Pholraksa1,2,3,4

  • 1Department of Cell & Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.

bioRxiv : the preprint server for biology
|December 11, 2025
PubMed
概括
此摘要是机器生成的。

我们介绍了Keeping SCORE,这是一种新的方法,可以将扩散模型转换为准确的分类和回归. 这种方法为计算生物学中的可解释AI提供不确定性估计和特征归属.

关键词:
人工智能的人工智能是人工智能.贝叶斯的推理 贝叶斯的推理扩散模型的扩散模型.消耗是一种消耗.热力学分类的热力学分类

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科学领域:

  • 计算生物学 计算生物学
  • 人工智能的人工智能
  • 统计力学 统计力学

背景情况:

  • 深度学习分类器提供准确的预测,但缺乏不确定性估计和功能可解释性.
  • 扩散模型在数据生成方面表现出色,但在分类和预测任务中未得到充分利用.

研究的目的:

  • 开发一个以物理学为灵感的框架,Keeping SCORE,它增强了用于概率分类和回归的扩散模型.
  • 在不改变现有模型的情况下,使AI预测中的不确定性量化和特征归属成为可能.

主要方法:

  • 通过测量沿噪声轨迹的消散,将扩散模型转化为概率引擎.
  • 根据物理原理计算精确的类概率并量化基于物理原理的预测信心.
  • 生成特征属性以识别关键输入变量驱动模型决策.

主要成果:

  • 在各种任务中展示了准确的概率估计和信心量化,包括图像识别,单细胞基因组学和分子生物物理学.
  • 提供可解释的特征属性,与具有物理意义的坐标相关联.
  • 展示了框架在不修改预先训练的模型的情况下增强预测的能力.

结论:

  • 保持SCORE桥梁非平衡统计力学和AI,创造可解释的,不确定性意识的预测.
  • 这种方法通过对复杂数据集提供更深入的见解,推动了生物发现.
  • 该框架为科学中可靠和可解释的AI应用提供了一个强大的工具.