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Related Concept Videos

Survey Safety01:28

Survey Safety

Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
Hazard Analysis and Critical Control Points (HACCP)01:30

Hazard Analysis and Critical Control Points (HACCP)

Hazard Analysis and Critical Control Points (HACCP) is a science-based, preventive system used globally to ensure food safety by identifying, evaluating, and controlling biological, chemical, and physical hazards throughout food production. Originally developed by NASA and the Pillsbury Company for astronaut food, HACCP is now a core component of the Codex Alimentarius.HACCP operates on prerequisite programs—such as Good Manufacturing Practices (GMPs), sanitation procedures, and supplier...
The Availability Heuristic01:08

The Availability Heuristic

A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):
Standard Precaution01:26

Standard Precaution

Standard precautions are the minimum infection control safeguards used while caring for all patients, irrespective of their disease condition. They help prevent the spread of common infectious microorganisms to healthcare workers, patients, and visitors in all healthcare settings.
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Hazard Rate01:11

Hazard Rate

The hazard rate, also known as the hazard function or failure rate, is a statistical measure used to describe the instantaneous rate at which an event occurs, given that the event has not yet happened. From a probabilistic perspective, it represents the likelihood that a subject will experience the event in a very small time interval, conditional on surviving up to the beginning of that interval. In terms of frequency, the hazard rate can be viewed as the ratio of the number of events to the...
Personal Protective Equipment01:20

Personal Protective Equipment

Personal protective equipment (PPE) is unique clothing or equipment worn by an employee to minimize or prevent exposure to infectious agents. PPE creates a barrier between the employee and the infectious materials. PPE must be readily available in the patient care area. PPE includes gloves, gowns and aprons, masks and respirators, goggles, face shields, shoes, and headcovers:

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Related Experiment Video

Updated: Jun 25, 2026

Safety Precautions and Operating Procedures in an (A)BSL-4 Laboratory: 2. General Practices
08:53

Safety Precautions and Operating Procedures in an (A)BSL-4 Laboratory: 2. General Practices

Published on: October 3, 2016

Occupational hazard.

Christopher Humm

    Nursing Standard (Royal College of Nursing (Great Britain) : 1987)
    |March 10, 2009
    PubMed
    Summary
    This summary is machine-generated.

    Disrupting your body's natural sleep-wake cycle, known as diurnal rhythms, is now recognized as a significant carcinogen. This disruption is considered as dangerous as exposure to ultraviolet (UV) light.

    Related Experiment Videos

    Last Updated: Jun 25, 2026

    Safety Precautions and Operating Procedures in an (A)BSL-4 Laboratory: 2. General Practices
    08:53

    Safety Precautions and Operating Procedures in an (A)BSL-4 Laboratory: 2. General Practices

    Published on: October 3, 2016

    Area of Science:

    • Chronobiology
    • Oncology
    • Occupational Health

    Background:

    • Diurnal rhythms govern essential physiological processes.
    • Disruptions to circadian rhythms are linked to various health issues.
    • Shift work is a common cause of diurnal rhythm disruption.

    Purpose of the Study:

    • To classify the carcinogenic potential of diurnal rhythm disruption.
    • To compare the risk of diurnal rhythm disruption to known carcinogens.

    Main Methods:

    • Literature review of epidemiological studies.
    • Meta-analysis of cancer incidence in shift workers.
    • Risk assessment comparing shift work to other carcinogens.

    Main Results:

    • Shift work and associated diurnal rhythm disruption are classified as a Group 1 carcinogen.
    • The carcinogenic magnitude is comparable to ultraviolet light exposure.
    • Evidence supports a causal link between circadian disruption and cancer.

    Conclusions:

    • Shift work poses a significant cancer risk.
    • Protecting workers from circadian disruption is crucial.
    • Further research into mitigation strategies is warranted.