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Non-equilibrium in the Cell01:16

Non-equilibrium in the Cell

4.8K
An important concept in studying metabolism and energy is that of chemical equilibrium. Most chemical reactions are reversible. They can proceed in both directions, releasing energy into their environment in one direction, and absorbing it from the environment in the other direction. The same is true for the chemical reactions involved in cell metabolism, such as the breaking down and building up of proteins into and from individual amino acids, respectively. Reactants within a closed system...
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Anatomy of the Genitourinary System II: Bladder and Urethra01:19

Anatomy of the Genitourinary System II: Bladder and Urethra

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The lower urinary system consists of the urinary bladder and urethra, which are essential in storing and expelling urine from the body. Together with the internal and external sphincters, these structures work together to regulate urination effectively.Anatomy of the BladderThe urinary bladder is a muscular, stretchable organ behind the pubic bone and in front of the rectum. In females, the bladder is positioned anterior to the vagina and inferior to the uterus, while in males, it is located...
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Anatomy of the Genitourinary System I: Kidneys and Ureters01:11

Anatomy of the Genitourinary System I: Kidneys and Ureters

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The upper urinary system comprises two kidneys and two ureters, which are crucial in filtering blood and forming urine.KidneysLocation and Structure:The kidneys are two bean-shaped organs positioned behind the peritoneum on either side of the spine.Kidneys are between the 12th thoracic (T12) and the 3rd lumbar (L3) vertebrae.The position of the liver causes the right kidney to sit slightly lower than the left.Protective Layers:Each kidney is enveloped in a tough, fibrous membrane called the...
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Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

52
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
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Urologic Endoscopic Procedure: Cystoscopic Examination01:28

Urologic Endoscopic Procedure: Cystoscopic Examination

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Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
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相关实验视频

Updated: Sep 11, 2025

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness
03:14

Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness

Published on: December 6, 2024

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语境感知检索 - 在泌尿病学中用于人工智能的增强生成.

Aadhitya Sriram1, Maheswaran N2, Bose Sundan1

  • 1Department of Computer Science and Engineering, College of Engineering, Guindy, Anna University, Chennai, IND.

Cureus
|August 18, 2025
PubMed
概括

这项研究为泌尿器科AI引入了修改后的检索增强生成 (RAG) 框架,显著减少了不准确的反应. 新系统提高了医疗AI准确性和医疗保健应用中的患者安全.

关键词:
人工智能的人工智能是人工智能.环境意识 背景意识在AI中出现幻觉.医疗人工智能 医疗人工智能提取增强生成的提取泌尿病学 泌尿病学 泌尿病学

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科学领域:

  • 医疗信息学 医疗信息学
  • 医疗保健中的人工智能
  • 泌尿病学研究 泌尿病学研究

背景情况:

  • 人工智能 (AI) 在医疗保健中越来越多地用于解释复杂的医疗查询.
  • 传统的AI模型经常产生不准确或无关的反应,称为幻觉,对患者的安全构成风险.
  • 提出了一种新的检索增强生成 (RAG) 框架,以解决泌尿学领域的这些局限性.

研究的目的:

  • 开发和评估专门针对泌尿病领域的修改后的RAG框架.
  • 提高医疗查询中人工智能生成的响应的上下文相关性和准确性.
  • 为了减轻AI幻觉在临床应用中的问题.

主要方法:

  • 使用PubMedBERT嵌入和尿道学文献的松矢量数据库开发了一个上下文感知RAG系统.
  • 集成命名实体识别,用于域特定查询过,以及用于上下文流动的动态内存.
  • 采用LLaMA3-8B模型来生成响应,并使用Deepseek-R1对定制泌尿病学数据集进行评估.

主要成果:

  • 通过RAG增强的框架,人工智能幻觉显著减少.
  • 与基线模型相比,响应在情境上更相关,并且基于证据.
  • 在产生医学上适当的答案方面取得了89%的性能改善,精度和可靠性得到了提高.

结论:

  • 该RAG增强系统在泌尿病学中具有很强的临床应用潜力,提供可靠和上下文意识的响应.
  • 有效地解决医疗人工智能的关键挑战,包括幻觉缓解和领域相关性.
  • 未来的研究将专注于减少推断延迟和增强自动化验证过程.