相关实验视频

Updated: May 9, 2025

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis
07:30

Rapid Nanoprobe Signal Enhancement by In Situ Gold Nanoparticle Synthesis

Published on: March 7, 2018

7.5K

通过使用深度渐进式学习重建算法,提高F-FDG PET图像质量和不同体重指数的病变诊断性能

Zhihao Chen1,2,3,4,5, Hongxing Yang1,2,3,4,5, Ming Qi1,2,3,4,5

  • 1Department of Nuclear Medicine, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.

Cancer imaging : the official publication of the International Cancer Imaging Society
|May 1, 2025
PubMed
概括

深度渐进式学习 (DPL) 与传统的OSEM重建相比,显著提高了2-deoxy-2-[-18]fluoro-D-glucose (F-FDG) 定子发射断层扫描 (PET) 图像质量和病变检测在所有身体质量指数 (BMI) 类别.

关键词:
这就是为什么BMI是BMI.深度渐进式学习 (DPL)损伤诊断表现 损伤诊断表现订制子集期望最大化 (OSEM)图像质量的PET图像质量

更多相关视频

Dissection of Enhancer Function Using Multiplex CRISPR-based Enhancer Interference in Cell Lines10:46

Dissection of Enhancer Function Using Multiplex CRISPR-based Enhancer Interference in Cell Lines

Published on: June 2, 2018

9.2K
AAV Deployment of Enhancer-Based Expression Constructs In Vivo in Mouse Brain09:59

AAV Deployment of Enhancer-Based Expression Constructs In Vivo in Mouse Brain

Published on: March 31, 2022

2.6K

相关概念视频

Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists01:30

Cognitive Enhancers: Cholinesterase Inhibitors and NMDA Receptor Antagonists

Cognitive enhancers, also known as "smart drugs," are substances used to enhance memory, mental alertness, and concentration. These can be natural or synthetic and improve cognition in conditions like Alzheimer's disease (AD) and other neurodegenerative diseases. Some common examples include caffeine, amphetamines, methylphenidate, modafinil, arecoline, donepezil, vortioxetine, and piracetam. These enhancers work on the principle of synaptic plasticity and altered circuit function.
85
Long-term Potentiation01:25

Long-term Potentiation

Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when...
2.7K
Self-Evaluation: Self-Enhancement and Self-Verification03:00

Self-Evaluation: Self-Enhancement and Self-Verification

Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
5.1K
Social Facilitation01:04

Social Facilitation

Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
31.5K
Elaborative Rehearsals01:07

Elaborative Rehearsals

Elaborative rehearsal is a crucial cognitive strategy that strengthens information encoding in long-term memory by making meaningful connections between new data and pre-existing knowledge. This approach contrasts with maintenance rehearsal, which involves simple repetition without delving into the significance of the information. While maintenance rehearsal might temporarily keep information active in short-term memory, it is less effective for long-term retention.
The effectiveness of...
58
Allosteric Regulation01:08

Allosteric Regulation

Allosteric regulation of enzymes occurs when the binding of an effector molecule to a site that is different from the active site causes a change in the enzymatic activity. This alternate site is called an allosteric site, and an enzyme can contain more than one of these sites. Allosteric regulation can either be positive or negative, resulting in an increase or decrease in enzyme activity. Most enzymes that display allosteric regulation are metabolic enzymes involved in the degradation or...
57.1K