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Related Concept Videos

Decision Making: P-value Method01:09

Decision Making: P-value Method

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The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
First, a specific claim about the population parameter is proposed. The claim is based on the research question and is stated in a simple form. Further, an opposing statement to the claim  is also stated. These statements can act as null and alternative hypotheses:  a null hypothesis would be a neutral statement while the alternative hypothesis can...
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Decision Making: Traditional Method01:14

Decision Making: Traditional Method

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The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
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Group Design02:01

Group Design

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The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between...
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Decision Making01:20

Decision Making

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Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
Automatic decision-making is fast, intuitive, and relies on gut feelings...
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Choosing Between z and t Distribution01:25

Choosing Between z and t Distribution

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The z and the Student t distribution estimate the population mean using the sample mean and standard deviation. However, to decide which distribution to use for a calculation, one needs to determine the sample size, the nature of the distribution, and whether the population standard deviation is known. If the population standard deviation is known and the population is normally distributed, or if the sample size is greater than 30, the z distribution is preferred. The Student t distribution is...
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Frustration and Conflict: Avoidance-Avoidance, Double-Approach Avoidance01:14

Frustration and Conflict: Avoidance-Avoidance, Double-Approach Avoidance

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Avoidance-avoidance conflict refers to a psychological situation where a person must choose between two or more unpleasant alternatives. These conflicts are particularly stressful because neither option is desirable. This dilemma is often expressed in sayings like "caught between a rock and a hard place" or "between the devil and the deep blue sea." For instance, individuals who fear dental procedures may find themselves torn between enduring a painful toothache or facing the...
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Related Experiment Video

Updated: Mar 19, 2026

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues
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Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues

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Choice of DES: is there a difference?

U Kaul1, V Bhatia1

  • 1Fortis Hospital, Noida and Escorts Heart Institute and Research Center, New Delhi, India.

Heart Asia
|June 22, 2016
PubMed
Summary

Drug-eluting stents (DESs) address restenosis after percutaneous coronary interventions, a limitation of bare metal stents. Newer DES generations show promise in solving issues associated with earlier models.

Area of Science:

  • Cardiovascular Medicine
  • Biomedical Engineering

Background:

  • Restenosis remains a significant limitation following percutaneous coronary interventions (PCIs).
  • Coronary stents, while improving on balloon angioplasty, can promote neointimal growth, contributing to restenosis, particularly in specific patient subgroups.
  • Bare metal stents have limitations, especially in patients with diabetes, small vessels, or long lesions.

Purpose of the Study:

  • To review the evolution of coronary stents in addressing restenosis.
  • To discuss the advancements and future directions of drug-eluting stents (DESs).

Main Methods:

  • Review of randomized studies comparing coronary artery bypass surgery with coronary stenting.
  • Discussion of advancements in stent technology, including drug-eluting stents (DESs).

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Last Updated: Mar 19, 2026

Perceptual and Category Processing of the Uncanny Valley Hypothesis' Dimension of Human Likeness: Some Methodological Issues
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Main Results:

  • Drug-eluting stents (DESs) have been developed to overcome the limitations of bare metal stents.
  • Third-generation DESs with bioabsorbable polymers are emerging, with ongoing evaluation of their long-term safety.
  • Polymer-free and fully bioabsorbable stents represent promising future concepts.

Conclusions:

  • Newer generations of drug-eluting stents (DESs) are effectively addressing restenosis after PCI.
  • The future of DES technology is promising, with ongoing developments aimed at resolving issues seen with first-generation devices.