Related Concept Videos

Convenience Sampling Method00:55

Convenience Sampling Method

Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. Data are the result of sampling from a population. The sampling method ensures that samples are drawn without bias and accurately represent the population.
Convenience sampling is a non-random method of sample selection; this method selects individuals that are easily accessible and may result in biased data. For example, a marketing...
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Opportunity Cost01:20

Opportunity Cost

Opportunity cost refers to the value of the next best alternative that must be forgone when making a decision. It represents the potential benefits or opportunities sacrificed when choosing one option over another. Understanding opportunity cost is essential in decision-making as it helps individuals, businesses, and societies assess the true cost of their choices.
In life, every decision involves trade-offs, where opting for one alternative means giving up another. For example, pursuing higher...
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Microembossing: A Convenient Process for Fabricating Microchannels on Nanocellulose Paper-Based Microfluidics03:58

Microembossing: A Convenient Process for Fabricating Microchannels on Nanocellulose Paper-Based Microfluidics

This protocol describes a straightforward process that utilizes convenient plastic micro-molds for simple microembossing operations to fabricate microchannels on nanofibrillated cellulose paper, achieving a minimum width of 200...
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Sunk and Opportunity Cost01:16

Sunk and Opportunity Cost

Sunk costs are expenditures already made and cannot be recovered, irrespective of future choices. These costs are essentially "sunk" because they are irretrievable and should not influence future decision-making. On the contrary, opportunity costs denote the value of the best alternative forgone when a decision is taken.
For example, if a company invests in a failing project, the money already spent on it is considered a sunk cost. However, the opportunity cost of continuing with the...
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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...
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Accessibility to Clinical Care for People who use Wheelchairs14:37

Accessibility to Clinical Care for People who use Wheelchairs

Source: Yetsa Tuakli-Wosornu1,2, Jaideep Talwalkar1; 1Yale School of Medicine, 2University of Pittsburgh
In the United States, 25% of the general population suffers from one or another type of disability. Ambulatory disabilities, or mobility impairments, represent the most common subcategory, comprising 14% of the country's populace. Different mobility-assistive devices, ranging from canes to scooters, enable increased independence and improved quality of life for those suffering from...
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