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Related Concept Videos

Natural and Artificial Concepts01:24

Natural and Artificial Concepts

In psychology, concepts can be divided into two categories: natural and artificial. Natural concepts are formed through direct or indirect experiences. For example, consider the concept of snow. If you live in a place with regular snowfall, such as Essex Junction, Vermont, you know snow through direct experiences. You’ve seen it fall, touched it, shoveled it, and played in it. You recognize its texture, appearance, and even its smell. In contrast, if you live on an island like Saint Vincent in...
What is Natural Selection?01:32

What is Natural Selection?

Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.The Theory of Natural...
Normal Distribution01:11

Normal Distribution

The normal, a continuous distribution, is the most important of all the distributions. Its graph is a bell-shaped symmetrical curve, which is observed in almost all disciplines. Some of these include psychology, business, economics, the sciences, nursing, and, of course, mathematics. Some instructors may use the normal distribution to help determine students’ grades. Most IQ scores are normally distributed. Often real-estate prices fit a normal distribution. The normal distribution is extremely...
Naturalistic Observations02:30

Naturalistic Observations

If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
Chemical Shift: Internal References and Solvent Effects01:17

Chemical Shift: Internal References and Solvent Effects

In an NMR sample, precise measurement of the absolute absorption frequencies of nuclei is difficult. A standard internal reference compound is added, and the frequency difference between the reference signal and sample signals is measured.
The internal reference compound generally used in NMR spectroscopy is tetramethylsilane (TMS). TMS is preferred because it is chemically inert, soluble in NMR solvents, and easily removable. Also, the highly shielded methyl protons in TMS yield an intense...
Applications of Normal Distribution01:22

Applications of Normal Distribution

The normal distribution is a useful statistical tool. One of its practical applications is determining the door height after considering the normal distribution of heights of persons, such that many can pass through it easily without striking their heads. The normal distribution can also determine the probability of a person having a height less than a specific height.
The heights of 15 to 18-year-old males from Chile from 1984 to 1985 followed a normal distribution. The mean height is 172.36...

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Related Experiment Video

Updated: Jun 13, 2026

Executing Complexity-Increasing Queries in Relational (MySQL) and NoSQL (MongoDB and EXist) Size-Growing ISO/EN 13606 Standardized EHR Databases
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Natural Standard database.

Roberta Bronson Fitzpatrick1

  • 1University of Medicine and Dentistry of New Jersey, Newark, 07101-2754, USA. fitzparb@umdnj.edu <fitzparb@umdnj.edu>

Medical Reference Services Quarterly
|May 1, 2010
PubMed
Summary

Natural Standard is a database offering systematic reviews on various health topics, including foods, supplements, and complementary medicine. It functions as a clinical decision support tool for healthcare professionals.

Area of Science:

  • Evidence-based practice
  • Integrative medicine
  • Clinical decision support

Background:

  • The Natural Standard database compiles systematic reviews on a wide range of health modalities.
  • It covers dietary supplements, functional foods, diets, and Complementary and Alternative Medicine (CAM).

Purpose of the Study:

  • To provide an overview of the Natural Standard database.
  • To describe its content, scope, and search functionalities.
  • To highlight its utility as a clinical decision support tool.

Main Methods:

  • Systematic review compilation
  • Database content curation
  • Information retrieval strategies

Main Results:

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  • The database offers comprehensive systematic reviews on diverse health topics.
  • It provides evidence-based information for clinical decision-making.
  • Search functionalities are designed for efficient resource utilization.

Conclusions:

  • Natural Standard is a valuable resource for healthcare professionals seeking evidence-based information.
  • It supports informed decisions regarding foods, supplements, and CAM therapies.
  • Understanding its search features enhances its effective application.