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相关概念视频

What is Variation?01:14

What is Variation?

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Apart from the measures of central tendency, distribution, outliers, and the changing characteristics of data with time, an important characteristic of any data set is its variation or spread. In some data sets, the data values are concentrated closely near the mean; in others, the data values are more widely spread out from the mean.
The range, standard deviation, standard error, and variance are the different measures of variation.
Range: The range is the difference between its maximum and...
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Conservative Site-specific Recombination and Phase Variation02:53

Conservative Site-specific Recombination and Phase Variation

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Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
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Variation01:19

Variation

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An important characteristic of any set of data is the variation in the data. In some data sets, the data values are concentrated closely near the mean; in other data sets, the data values are more widely spread out from the mean. The most common measure of variation, or spread, is the standard deviation, which is the square root of variance.
When independent and dependent variables are plotted on a scatter plot, the slope of a line is a value that describes the rate of change between the two...
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Variation of Atmospheric Pressure01:18

Variation of Atmospheric Pressure

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Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
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Comparing Copy Number Variations and SNPs02:26

Comparing Copy Number Variations and SNPs

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Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
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Coefficient of Variation01:10

Coefficient of Variation

8.7K
The coefficient of variation measures the dispersion of the data points or distribution around the mean. Using the coefficient of variation, we can compare two data series with drastically different means or different units of measurement. The coefficient of variation for a sample and a population is expressed as a percentage of the ratio of standard deviation to the mean.
The coefficient of variation is a practical statistical tool in finance. It allows investors to assess the volatility or...
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Updated: Feb 11, 2026

Effects of Exposure of Formaldehyde to a Rat Model of Atopic Dermatitis Induced by Neonatal Capsaicin Treatment
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丹麦的亚托皮性皮肤炎:区域差异

Kristina Ibler1, Ann Hærskjold1, Jens Olsen2

  • 1Department of Dermatology, Bispebjerg Hospital, Copenhagen University Hospital, Copenhagen, Denmark.

Acta dermato-venereologica
|February 10, 2026
PubMed
概括
此摘要是机器生成的。

这项研究发现,在1995年至2020年期间,在丹麦的亚托皮性皮炎 (AD) 诊断和治疗中存在显著的区域差异. 尽量减少诊断不确定性是减少这些差异的关键.

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Recognition of Epidermal Transglutaminase by IgA and Tissue Transglutaminase 2 Antibodies in a Rare Case of Rhesus Dermatitis
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科学领域:

  • 皮肤病学 皮肤病学
  • 公共卫生 公共卫生
  • 医疗保健服务研究 医疗服务研究

背景情况:

  • 亚托匹性皮肤炎 (AD) 是一种常见的慢性皮肤疾病,在全球有显著的流行.
  • 了解AD流行病学和治疗的区域差异对于公平的医疗保健服务至关重要.
  • 丹麦的医疗保健系统,尽管旨在实现公平,但由于行政因素,可能会出现区域差异.

研究的目的:

  • 调查丹麦亚型皮肤炎 (AD) 发病率和治疗的区域差异.
  • 分析丹麦不同地区的AD识别和先进治疗率的趋势.
  • 确定导致AD护理区域差异的因素.

主要方法:

  • 从1995年到2020年,利用国家登记册来识别患有AD的个人.
  • 在医疗保健利用数据上采用机器学习技术,用于在成人和儿童中识别AD病例.
  • 亚当氏症诊断,先进治疗和医院咨询的区域比较率.

主要成果:

  • 在研究期间,确定了537,001名阿尔茨海默病患者.
  • 在阿尔茨海默病患病率中显示出一致的区域差异,丹麦中部地区在14年中11年显示出最高的患病率.
  • 观察到区域之间先进治疗率和医院咨询频率的显著差异.

结论:

  • 在丹麦,亚托皮性皮炎诊断和治疗的区域差异很明显.
  • 解决诊断不确定性对于缓解AD护理中不合理的区域差异至关重要.
  • 需要进一步的研究,以了解和减少在管理这种慢性皮肤病的区域不平等.