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相关概念视频

Structural Classification of Joints01:20

Structural Classification of Joints

3.3K
Joints, also known as articulations, are classified based on their structural characteristics, i.e., based on whether the articulating surfaces of the adjacent bones are directly connected by fibrous connective tissue or cartilage, or whether the articulating surfaces contact each other within a fluid-filled joint cavity. These differences serve to divide the joints of the body into three structural classifications.
A fibrous joint is where the adjacent bones are united by fibrous connective...
3.3K
Structuralism01:26

Structuralism

625
Structuralism, an early psychological theory developed by Wilhelm Wundt and his student Edward Bradford Titchener, sought to dissect the human mind into its most fundamental components. Wundt's groundbreaking work in his laboratory set the stage for Titchener to define structuralism's goal as cataloging the "atoms" of the mind—sensations, images, and feelings—akin to how chemists identify elements of matter.
Titchener's approach to structuralism was unique. He...
625
Language and Cognition01:27

Language and Cognition

342
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
342
Tip-of-the-Tongue Phenomenon01:10

Tip-of-the-Tongue Phenomenon

136
The tip-of-the-tongue (TOT) phenomenon is a cognitive experience characterized by a temporary inability to retrieve specific information from memory despite having a strong feeling of knowing the information. Although individuals cannot access the target word or detail, they frequently recall related elements, such as its initial letter, syllable count, or context. This partial retrieval often causes frustration, as one might recognize a familiar face or know that a name starts with a specific...
136
Directional Terms01:14

Directional Terms

8.4K
Directional terms are essential for describing the relative locations of different body structures. For instance, an anatomist might describe one band of tissue as "inferior to" another, or a physician might describe a tumor as "superficial to" a deeper body structure. These terms often use comparative terms in pairs to trace out the relative locations of one body part to another or descriptions of body tissues like the deeper ones from superficially present with reference to...
8.4K
Functional Classification of Joints01:09

Functional Classification of Joints

4.0K
Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses  or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An...
4.0K

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相关实验视频

Updated: Jun 24, 2025

Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
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临床说明 结构知识 改善词语意义 清晰度

Fangyi Chen1, Gongbo Zhang1, Si Chen1

  • 1Department of Biomedical Informatics, Columbia University, New York, NY, USA.

AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science
|June 3, 2024
PubMed
概括

这项研究通过使用统一医学语言系统 (UMLS) 的语义类型来表示临床注释结构,改善了医学缩写的明确性. 这种方法提高了理解模两可的医学术语的准确性.

科学领域:

  • 医疗信息学 医疗信息学
  • 自然语言处理自然语言处理.
  • 临床文档 临床文档

背景情况:

  • 临床笔记包含许多含糊不清的医学缩写,需要清晰化.
  • 现有的基于学习的方法利用上下文知识,但未充分利用临床笔记结构.
  • 以前的笔记结构分析方法缺乏语义意义.

研究的目的:

  • 开发和评估一种新的医疗缩写解误用方法,使用语义丰富的临床笔记结构表示.
  • 调查统一医疗语言系统 (UMLS) 中的语义类型的实用性,以增强缩写意义的明确性.

主要方法:

  • 使用统一医疗语言系统 (UMLS) 的语义类型表示临床笔记结构.
  • 将这些语义表示作为特征与N-grams一起集成,以减少缩写的模糊性.
  • 在两个不同的数据集上使用三个机器学习模型评估方法.

主要成果:

  • 使用UMLS语义类型提议的功能增强始终提高了缩写明确性的模型性能.
  • 获得的最佳F1得分为0.93,比基线方法显著提高.
  • 这项研究证实了临床笔记中语义上有意义的结构信息的价值.

结论:

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  • 用UMLS语义类型表示临床笔记结构是改善医学缩写歧义的有效策略.
  • 与以前的结构分析相比,这种方法提供了更有语义基础的方法.
  • 这些发现支持将结构化临床信息集成到用于医疗保健应用的自然语言处理模型中.