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  2. Hierarchy of hazard controls - Wikipedia

    en.wikipedia.org/wiki/Hierarchy_of_hazard_controls

    The hierarchy of controls is a core component of Prevention through Design, the concept of applying methods to minimize occupational hazards early in the design process. Prevention through Design emphasizes addressing hazards at the top of the hierarchy of controls (mainly through elimination and substitution) at the earliest stages of project ...

  3. Hierarchical control system - Wikipedia

    en.wikipedia.org/wiki/Hierarchical_control_system

    For example, a command hierarchy has among its notable features the organizational chart of superiors, subordinates, and lines of organizational communication. Hierarchical control systems are organized similarly to divide the decision making responsibility. Each element of the hierarchy is a linked node in the tree. Commands, tasks and goals ...

  4. Hazard elimination - Wikipedia

    en.wikipedia.org/wiki/Hazard_elimination

    Hazard elimination is a hazard control strategy based on completely removing a material or process causing a hazard.Elimination is the most effective of the five members of the hierarchy of hazard controls in protecting workers, and where possible should be implemented before all other control methods.

  5. Anticipate, recognize, evaluate, control, and confirm - Wikipedia

    en.wikipedia.org/wiki/Anticipate,_recognize...

    The anticipate, recognize, evaluate, control, and confirm (ARECC) decision-making framework began as recognize, evaluate, and control.In 1994 then-president of the American Industrial Hygiene Association (AIHA) Harry Ettinger added the anticipate step to formally convey the duty and opportunity of the worker protection community to proactively apply its growing body of knowledge and experience ...

  6. Engineering controls - Wikipedia

    en.wikipedia.org/wiki/Engineering_controls

    Engineering controls is the third of five members of the hierarchy of hazard controls, which orders control strategies by their feasibility and effectiveness. Engineering controls are preferred over administrative controls and personal protective equipment (PPE) because they are designed to remove the hazard at the source, before it comes in ...

  7. Missing hiker thanks rescuers after surviving 13 days on two ...

    www.aol.com/missing-hiker-found-alive-13...

    A 23-year-old hiker who survived 13 days lost in the Australian wilderness after stumbling on two granola bars has thanked his rescuers for enduring “tough conditions” to find him.

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  9. Hierarchical database model - Wikipedia

    en.wikipedia.org/wiki/Hierarchical_database_model

    An example is a "customer" record that has links to that customer's "orders", which in turn link to "line_items". The hierarchical database model mandates that each child record has only one parent, whereas each parent record can have zero or more child records.