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Related Concept Videos

The Contractile Ring02:15

The Contractile Ring

7.5K
Contractile rings are composed of microfilaments and are responsible for separating the daughter cells during cytokinesis. Contractile ring assembly proceeds along with other cell cycle events; however, very few mechanistic details are known about the timing and coordination of the contractile rings with the cell cycle.
A small GTPase, RhoA, controls the function and assembly of the contractile ring. RhoA belongs to the Ras superfamily of proteins. The activation of formins by RhoA promotes...
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The Role of Actin and Myosin in Non-muscle Cells01:10

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Actin and myosin or actomyosin filaments also play a significant role in cells other than those involved in muscle contraction (which occurs within the sarcomere of muscle cells). The mechanism of non-muscle cell contractile bundles was first observed in Dictyostelium and Acanthamoeba. In non-muscle cells, two bundles are commonly found: stress fibers and actomyosin adherence belts. These contractile bundles are smaller and less organized than the ones found in muscle cells. They  are held...
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International Nursing Organizations II01:28

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The World Health Organization (WHO) is a specialized agency of the United Nations based in Geneva. The WHO has many initiatives that center around health. Primarily, they lead global efforts to expand universal health coverage using science-based policies and programs. They are also responsible for shaping health research agendas and developing norms and standards.
The WHO provides expert team support, including funding, vaccines, testing, and treatment tools at the country level to fight...
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Issues And Trends In Healthcare Delivery System01:29

Issues And Trends In Healthcare Delivery System

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The issues and trends in healthcare delivery are constantly changing. The COVID-19 pandemic is one recent issue that wreaked havoc on healthcare systems, causing a shortage of healthcare workers, high demand for medicines and supplies, and increased medical expenditure due to a lack of insurance. Other issues include rising healthcare costs and care fragmentation.
Cost Containment
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Ethics in Research01:56

Ethics in Research

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Today, scientists agree that good research is ethical in nature and is guided by a basic respect for human dignity and safety. However, this has not always been the case. Modern researchers must demonstrate that the research they perform is ethically sound.
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Related Experiment Video

Updated: Mar 28, 2026

Contractility Measurements of Human Uterine Smooth Muscle to Aid Drug Development
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Contractility Measurements of Human Uterine Smooth Muscle to Aid Drug Development

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What Contract? With Whom? For What Purpose?

Gordon H DeFriese

    The Journal of the American College of Dentists
    |December 25, 2015
    PubMed
    Summary

    The U.S. Supreme Court ruled that professional licensing boards require state supervision to curb commercial activity. This decision may limit professions

    Area of Science:

    • Dental Law and Regulation
    • Professional Licensing
    • Commercial Activity Regulation

    Background:

    • Professional licensing boards historically regulated practice scope.
    • The line between professional services and commercial activity is increasingly blurred.
    • Teeth-whitening services present a case study in this evolving landscape.

    Purpose of the Study:

    • To analyze the legal implications of the U.S. Supreme Court's decision regarding the North Carolina State Board of Dental Examiners.
    • To examine the impact of this ruling on professional self-regulation and commercial activities.
    • To discuss the future of professional oversight in light of increased commercialization.

    Main Methods:

    • Legal analysis of the Supreme Court's ruling and its reasoning.

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  • Examination of the distinction between professional and commercial services in healthcare.
  • Discussion of the implications for professional boards and state oversight.

    • Main Results:

    • The Supreme Court affirmed the Federal Trade Commission's action against the dental board due to lack of state supervision.
    • The ruling suggests professions may have limited authority to restrict related commercial activities.
    • The decision highlights the challenge in distinguishing professional versus commercial services.

    Conclusions:

    • Future professional self-regulation, particularly concerning commercial aspects, will likely face increased legal scrutiny.
    • The scope of professional boards' enforcement power over commercial activities is substantially limited.
    • The increasing commercial nature of professions like dentistry may reduce their influence on practice definitions and enforcement.