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Related Concept Videos

Survey Safety01:28

Survey Safety

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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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Household Wiring And Electrical Safety01:13

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Companies that supply power to most modern households use three conductors, typically called a three-wire line. While one is neutral, the other two are both at 120 V but with opposite polarity, giving a voltage of 240 V between them. With a three-wire line, high-power appliances that require 240 V, such as electric stoves and clothes dryers, are linked between the two hot lines. 120 V appliances can be connected between the neutral and either of the hot lines. The neutral side, which is always...
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Introduction to R01:11

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R is a powerful software environment for statistical computing and graphics. Originating as an implementation of the S language, developed at Bell Laboratories, R has evolved into a robust, open-source statistical software favored by statisticians and data scientists worldwide. Its comprehensive suite includes data manipulation, calculation, and graphical display capabilities, making it versatile for data analysis and visualization. Its programming language is at the core of R's...
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Introduction to Virus01:28

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Viruses are unique biological entities that blur the boundary between living and non-living systems. Although they lack cellular structure and metabolic processes, they can exhibit characteristics of life when infecting a host. Their defining feature is a nucleic acid core, composed of either DNA or RNA, encapsulated within a protein coat called a capsid. This simple structure allows them to invade host cells and use their machinery for replication efficiently.Viral Structure and...
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Introduction to Functional Groups02:08

Introduction to Functional Groups

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Functional groups are group of atoms with specific chemical properties that occur within organic molecules and sometimes denoted as “R”. Functional groups are found along the carbon backbone of macromolecules can form chains or rings of carbon atoms. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.  
Types of common functional groups
The table below summarizes some of the major functional groups in organic chemistry....
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Introduction to the Cytoskeleton01:33

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Overview of the Cytoskeleton
The cytoskeleton is a network of protein filaments present within the cell, having three distinct filaments ̶   microfilaments, microtubules, and intermediate filaments. Each has characteristic features that distinguish them, including the dynamics of their assembly and disassembly, mechanical properties, polarity, and the type of molecular motors associated with them. Earlier, they were thought to be present only in eukaryotic cells; however, their...
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Related Experiment Video

Updated: Jan 25, 2026

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
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An Introduction to Patient Safety.

John Maamoun1

  • 1The Odette Cancer Centre - Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.

Journal of Medical Imaging and Radiation Sciences
|May 5, 2019
PubMed
Summary

Patient safety initiatives aim to reduce preventable adverse events in healthcare. A comprehensive approach, focusing on culture, data, risk, and audits, supported by human factors and communication, is crucial for improving patient safety.

Area of Science:

  • Healthcare Management
  • Medical Error Analysis
  • Patient Safety Research

Background:

  • The patient safety movement evolved from industrial safety principles.
  • Adverse events represent a significant scope and cost in healthcare globally.
  • Understanding error sources is key to improving healthcare safety.

Purpose of the Study:

  • To provide a historical overview of the patient safety movement.
  • To examine sources of medical error and relevant concepts.
  • To review foundational elements and supporting activities for patient safety.

Main Methods:

  • Literature review of patient safety concepts and initiatives.
  • Analysis of adverse event data scope and cost across countries.
  • Examination of human versus systemic approaches to medical errors.

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Main Results:

  • Identified key concepts: human/systemic error, active failures/latent conditions, Swiss cheese model, normalization of error.
  • Outlined the four Cs of patient safety: culture, collection, calculation, clinical audits.
  • Highlighted supporting activities: human factors engineering, communication, staff education.

Conclusions:

  • Many adverse events in healthcare are preventable and occur across all settings.
  • An orderly and comprehensive approach to patient safety is essential.
  • The four Cs of patient safety require support from other key activities for effectiveness.