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Related Concept Videos

Dietary Connections01:23

Dietary Connections

In biological systems, most metabolic pathways are interconnected. The cellular respiration processes that convert glucose to ATP—such as glycolysis, pyruvate oxidation, and the citric acid cycle—tie into those that break down other organic compounds. As a result, various foods—from apples to cheese to guacamole—end up as ATP. In addition to carbohydrates, food also contains proteins and lipids—such as cholesterol and fats. All of these organic compounds are used as energy sources to produce...
Protein-protein Interfaces02:04

Protein-protein Interfaces

Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Protein-Protein Interfaces02:04

Protein-Protein Interfaces

Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Guidelines and Strategies for Safe Computer Charting01:18

Guidelines and Strategies for Safe Computer Charting

The guidelines and strategies provided by the American Nurses Association (ANA) and the Canadian Nurses Association (CNA) offer essential principles for ensuring safe and secure computer charting systems in healthcare settings. Let's break down each recommendation:
Maintain Confidentiality and Security:
Three-Dimensional Force System:Problem Solving01:30

Three-Dimensional Force System:Problem Solving

A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is commonly encountered in physics and engineering, where it is necessary to calculate the resultant force on the system, which can then be used to predict or analyze the behavior of the object or structure under consideration.
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
Overview of Fatty Acid Metabolism01:28

Overview of Fatty Acid Metabolism

Lipids also are sources of energy that power cellular processes. Like carbohydrates, lipids are composed of carbon, hydrogen, and oxygen, but these atoms are arranged differently. Most lipids are nonpolar and hydrophobic. Major types include fats and oils, waxes, phospholipids, and steroids.
Fatty acids are catabolized in a process called beta-oxidation, which takes place in the matrix of the mitochondria and converts their fatty acid chains into two-carbon units of acetyl groups. The acetyl...

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Related Experiment Video

Updated: Jul 18, 2026

Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq
04:54

Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq

Published on: March 19, 2021

Developing the consumer interface for the MyPyramid Food Guidance System.

Jackie Haven1, Adam Burns, Patricia Britten

  • 1USDA Center for Nutrition Policy and Promotion, Alexandria, VA 22302, USA. Jackie.Haven@cnpp.usda.gov

Journal of Nutrition Education and Behavior
|November 23, 2006
PubMed
Summary

Consumers preferred familiar pyramid graphics and positive, personal messages for the MyPyramid Food Guidance System. Feedback guided the interface design, balancing new elements with continuity.

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Last Updated: Jul 18, 2026

Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq
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Published on: March 19, 2021

'Boden Food Plate': Novel Interactive Web-based Method for the Assessment of Dietary Intake
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Published on: September 18, 2018

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method
06:21

Concept Development and Use of an Automated Food Intake and Eating Behavior Assessment Method

Published on: February 19, 2021

Area of Science:

  • Nutrition communication
  • Consumer behavior research
  • Health promotion interface design

Background:

  • The MyPyramid Food Guidance System aimed to provide accessible dietary recommendations.
  • Previous food guidance systems utilized visual metaphors like the pyramid.
  • Understanding consumer perception is crucial for effective health messaging.

Purpose of the Study:

  • To evaluate consumer reactions to proposed visual elements and messaging for the MyPyramid Food Guidance System.
  • To inform the design of the consumer interface based on user preferences.
  • To identify key elements that enhance or detract from message comprehension and engagement.

Main Methods:

  • Qualitative research employing focus groups (Phase 1) and Web-TV testing (Phase 2).
  • Participant recruitment included 77 adults in focus groups and 407 adults via Web-TV.
  • Content analysis of qualitative data to identify themes and response frequencies.

Main Results:

  • Consumers favored the recognizable pyramid shape in graphics.
  • Appealing elements included personal, active, and positive messaging and imagery.
  • A desire for continuity with the established pyramid shape was noted.

Conclusions:

  • Consumer feedback significantly influenced the MyPyramid Food Guidance System's interface.
  • The final design incorporated elements perceived as novel, personal, and active.
  • Balancing familiarity with new approaches proved essential for consumer acceptance and usability.