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Related Concept Videos

Zones of Protection01:16

Zones of Protection

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In power systems, the entire setup is divided into protective zones to isolate faults and protect the rest of the network. These zones include generators, transformers, buses, transmission lines, distribution lines, and motors. Each zone can be visualized as a separate room in a house, with each room protected by its own circuit breaker.
Protective zones are defined by closed dashed lines, containing one or more components. A key characteristic of these zones is the strategic placement of...
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Survey Safety01:28

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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...
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Bystander Effect02:09

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The discussion of bullying highlights the problem of witnesses not intervening to help a victim. This is a common occurrence, as the following well-publicized event demonstrates. In 1964, in Queens, New York, a 19-year-old woman named Kitty Genovese was attacked by a person with a knife near the back entrance to her apartment building and again in the hallway inside her apartment building. When the attack occurred, she screamed for help numerous times and eventually died from her stab wounds.
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Standard Precaution01:26

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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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Social Traps01:41

Social Traps

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Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
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Transmission-based Precautions II: Airborne and Protective Environment01:25

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Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
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Experimental Research Examining How People Can Cope with Uncertainty Through Soft Haptic Sensations
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No one is safe until we are all safe.

Sarah Gilbert1, Richard Hatchett2

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As COVID-19 vaccines became available in late 2021, the priority shifted to ensuring fair distribution and optimal usage. This requires careful consideration of vaccine safety and effectiveness data for equitable global health strategies.

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Area of Science:

  • Public Health
  • Epidemiology
  • Vaccinology

Background:

  • The second half of 2021 saw the widespread production of multiple COVID-19 vaccines.
  • Existing vaccine deployment strategies needed re-evaluation in light of new safety and effectiveness data.

Purpose of the Study:

  • To emphasize the critical need for equitable vaccine deployment globally.
  • To advocate for the optimal use of COVID-19 vaccines based on robust scientific evidence.

Main Methods:

  • Analysis of emerging safety and effectiveness data for COVID-19 vaccines.
  • Review of global vaccine distribution and access challenges.

Main Results:

  • The availability of diverse vaccines necessitates a strategic approach to deployment.
  • Equitable access remains a significant challenge in global health.

Conclusions:

  • A shift in focus towards equitable vaccine distribution is paramount.
  • Optimizing vaccine use based on safety and effectiveness is crucial for pandemic control.