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関連する概念動画

Feedback Loops01:01

Feedback Loops

66.0K
In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.
66.0K
Feedback Inhibition00:46

Feedback Inhibition

57.7K
Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!
57.7K
Review and Preview01:13

Review and Preview

11.8K
Data are individual items of information obtained from a population or sample. Data may be classified as qualitative (categorical), quantitative continuous, or quantitative discrete. Because it is not practical to measure the entire population in a study, researchers use samples to represent the population. A random sample is a representative group from the population chosen by using a method that gives each individual in the population an equal chance of being included in the sample. Random...
11.8K
Review and Preview01:10

Review and Preview

8.6K
In statistics, several tools are used to interpret the data. Measures of central tendency represent the characteristics of the data, such as mean, median, and mode. Additionally, measures of variance like standard deviation and range are used to find the spread of data from the mean. Relative standing measures the distance between data locations. Commonly used measures of relative standings are percentile, z score, and quartiles.
Percentiles are a type of fractile that partition data into...
8.6K
Allergic Reactions02:06

Allergic Reactions

32.6K
Overview
32.6K
Reaction Rate02:53

Reaction Rate

67.8K
The rate of reaction is the change in the amount of a reactant or product per unit time. Reaction rates are therefore determined by measuring the time dependence of some property that can be related to reactant or product amounts. Rates of reactions that consume or produce gaseous substances, for example, are conveniently determined by measuring changes in volume or pressure.
The mathematical representation of the change in the concentration of reactants and products, over time, is the rate...
67.8K

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Author Spotlight: Exploring Light-Driven Chemical Reactions and Energy-Harnessing Devices in Photochemical Research
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著者返信

Daniel Gabbai1,2, Itamar Gilboa1,2, Anat Lavie1,2

  • 1Lis Hospital for Women's Health, Tel Aviv Sourasky Medical Centre, Tel Aviv, Israel.

BJOG : an international journal of obstetrics and gynaecology
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PubMed
まとめ

No abstract available in PubMed .

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Layers of Symbiosis - Visualizing the Termite Hindgut Microbial Community
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Last Updated: Feb 26, 2026

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