Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

External and Internal Respiration01:24

External and Internal Respiration

7.4K
External respiration occurs in the lungs, and it is the first step in the journey of oxygen inside the body. When we inhale, oxygen enters our lungs and diffuses across the thin alveolar membrane. The alveoli are tiny, air-filled sacs that provide a vast surface area for gas exchange. Oxygen in the alveoli has a higher partial pressure (105 mmHg) than in the adjacent pulmonary capillaries (40 mmHg), establishing a pressure gradient. As a result, oxygen molecules move from the alveoli into the...
7.4K
Internal and External Forces01:12

Internal and External Forces

16.2K
Newton's first law states that a net external force causes a change in motion. External forces act on an object or system, originating outside of the object or system. In contrast, internal forces originate inside the system of interest and do not lead to any acceleration. In simpler words, internal forces are forces that act on one part of an object and are exerted by another part of the same object. External forces are forces that act on an object due to some other object. Therefore, when...
16.2K
Reliability and Validity01:29

Reliability and Validity

13.8K
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
13.8K
Simplified Synchronous Machine Model01:30

Simplified Synchronous Machine Model

760
The Synchronous Machine Model is a fundamental tool in analyzing and ensuring the transient stability of power systems. This model simplifies the representation of a synchronous machine under balanced three-phase positive-sequence conditions, assuming constant excitation and ignoring losses and saturation. The model is pivotal for understanding the behavior of synchronous generators connected to a power grid, particularly during transient events.
In this model, each generator is connected to a...
760
Wind Turbine Machine Models01:24

Wind Turbine Machine Models

576
In the growing field of wind energy, incorporating wind turbine models into transient stability analysis is essential. Induction and synchronous machines are the primary models used, with induction machines being prevalent due to their simplicity and reliability.
Induction machines interact through the rotating magnetic field generated by the stator and the rotor. The key parameter is slip, which is the difference between synchronous speed and rotor speed relative to synchronous speed. Slip is...
576
Internal Energy02:00

Internal Energy

36.6K
The total of all possible kinds of energy present in a substance is called the internal energy (U), sometimes symbolized as E. Suppose a system with initial internal energy, Uinitial, undergoes a change in energy (transfer of work or heat), and the final internal energy of the system is Ufinal. Change in internal energy equals the difference between Ufinal and Uinitial.
36.6K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Wafer-Level Self-Assembly and Interface Passivation Patterning Technology for Nanomaterial-Compatible 3D MEMS Sensing Chips.

Nano-micro letters·2026
Same author

Correction to "A Nanomaterial-Independent Biosensor Based on Gallium Arsenide High-Electron-Mobility Transistors for Rapid and Ultra-Sensitive Pathogen Detection".

ACS sensors·2025
Same author

A Nanomaterial-Independent Biosensor Based on Gallium Arsenide High-Electron-Mobility Transistors for Rapid and Ultra-Sensitive Pathogen Detection.

ACS sensors·2025
Same author

Bioinformatics analysis of circular RNAs associated with atrial fibrillation and their evaluation as predictive biomarkers.

Human genomics·2025
Same author

Ni/Fe-MOF Electrochemical Transistor Biosensors with 3D Debye Space for Ultrasensitive Detection of Coronavirus Nucleocapsid Protein.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same author

Double-Phase Ga-Doped In<sub>2</sub>O<sub>3</sub> Nanospheres and Their Self-Assembled Monolayer Film for Ultrasensitive HCHO MEMS Gas Sensors.

Small (Weinheim an der Bergstrasse, Germany)·2025

関連する実験動画

Updated: Jan 27, 2026

Constructing and Visualizing Models using Mime-based Machine-learning Framework
06:19

Constructing and Visualizing Models using Mime-based Machine-learning Framework

Published on: July 22, 2025

2.4K

術後亜急性期脳卒中患者における低栄養の予測のための解釈可能な機械学習ベースの予測モデル:内部および外部検証研究

Ping Sun1,2, Junqi Luan3, Guotao Duan1

  • 1Second Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang Province, China.

Frontiers in nutrition
|January 26, 2026
PubMed
まとめ

この研究では、リハビリテーション中の脳卒中患者における低栄養リスクを予測するための機械学習モデルを開発した。CatBoost(CAT)モデルは、栄養サポートを必要とする患者を正確に特定し、ケアを改善する。

キーワード:
CAT機械学習多施設共同研究予測モデルリスク因子亜急性期脳卒中

さらに関連する動画

Comparison of Predictive Performance of Three Lymph Node Staging Systems in Colorectal Signet Ring Cell Carcinoma Based on Machine Learning Model
07:13

Comparison of Predictive Performance of Three Lymph Node Staging Systems in Colorectal Signet Ring Cell Carcinoma Based on Machine Learning Model

Published on: April 18, 2025

503
Predicting Treatment Response to Image-Guided Therapies Using Machine Learning: An Example for Trans-Arterial Treatment of Hepatocellular Carcinoma
04:09

Predicting Treatment Response to Image-Guided Therapies Using Machine Learning: An Example for Trans-Arterial Treatment of Hepatocellular Carcinoma

Published on: October 10, 2018

8.7K

関連する実験動画

Last Updated: Jan 27, 2026

Constructing and Visualizing Models using Mime-based Machine-learning Framework
06:19

Constructing and Visualizing Models using Mime-based Machine-learning Framework

Published on: July 22, 2025

2.4K
Comparison of Predictive Performance of Three Lymph Node Staging Systems in Colorectal Signet Ring Cell Carcinoma Based on Machine Learning Model
07:13

Comparison of Predictive Performance of Three Lymph Node Staging Systems in Colorectal Signet Ring Cell Carcinoma Based on Machine Learning Model

Published on: April 18, 2025

503
Predicting Treatment Response to Image-Guided Therapies Using Machine Learning: An Example for Trans-Arterial Treatment of Hepatocellular Carcinoma
04:09

Predicting Treatment Response to Image-Guided Therapies Using Machine Learning: An Example for Trans-Arterial Treatment of Hepatocellular Carcinoma

Published on: October 10, 2018

8.7K

科学分野:

  • 医療情報学
  • ヘルスケアにおける機械学習
  • 栄養科学

背景:

  • 低栄養は、亜急性期リハビリテーション中の脳卒中患者に蔓延しており、死亡率と有害事象を増加させる。
  • この集団における低栄養リスクを予測するための既存のツールは限られている。
  • 効果的な介入のためには、低栄養リスクの早期特定が重要である。

研究 の 目的:

  • 亜急性期リハビリテーションを受けている脳卒中患者における低栄養リスクを予測するための、解釈可能な機械学習(ML)モデルを開発および検証すること。
  • 早期の低栄養リスク層別化のための臨床的に実行可能なツールを作成すること。
  • 適時な栄養介入を通じて患者の転帰を改善すること。

主な方法:

  • 開発(n=802)および外部検証(n=345)コホートを含む多施設共同研究。
  • LASSO回帰およびBorutaアルゴリズムを使用した特徴選択。
  • 交差検証およびAUC、キャリブレーション曲線、DCAなどの指標を使用した、CatBoost(CAT)を含む8つのMLモデルのトレーニングと評価。
  • SHAP分析を使用した解釈可能性の評価。

主要な成果:

  • CATアルゴリズムは、AUC 0.848(開発)および0.772(外部検証)で優れたパフォーマンスを示した。
  • モデルはDCAを通じて良好なキャリブレーションと臨床的有用性を示した。
  • SHAP分析により、年齢、握力、バーセル指数(BI)スコアが低栄養の主要な予測因子であることが特定された。

結論:

  • 亜急性期脳卒中患者における低栄養リスクスクリーニングのために、解釈可能なMLモデル(CATベース)が正常に開発および検証された。
  • このモデルは、早期リスク層別化のための臨床的に実行可能なツールを提供する。
  • これにより、標的を絞った栄養介入と個別化されたリハビリテーションが可能になり、患者の転帰が向上する可能性がある。