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Related Concept Videos

Blind Procedures02:07

Blind Procedures

Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...
Masonry Curtain Walls01:20

Masonry Curtain Walls

Masonry curtain walls employ brick or stone veneers supported by the building's structure to form an external cladding system that is both aesthetically appealing and functional. These walls are erected through two principal techniques, first by traditional layering of masonry units and second by using prefabricated panels. Traditional construction relies on steel shelf angles attached to the spandrel beam for support, with high-bond mortars ensuring secure attachment of masonry veneer units.
Design Example: Calculating Safe Diameter for Wind-Exposed Disc01:17

Design Example: Calculating Safe Diameter for Wind-Exposed Disc

Assessing safety in wind-exposed installations is crucial to preventing potential failures. This example explores the calculation and design adjustments needed to mount a circular disc on a building facade, where wind forces are a primary concern. A 4-meter diameter disc was initially designed as an aesthetic feature facing winds at a velocity of 25 meters per second, with an air density of 1.25 kilograms per cubic meter. Given these conditions, the drag force on the disc was determined using...
Household Wiring And Electrical Safety01:13

Household Wiring And Electrical Safety

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...
Blinding01:11

Blinding

Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...

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Related Experiment Video

Updated: Jun 15, 2026

Assessing Functional Performance in the Mdx Mouse Model
10:32

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Published on: March 27, 2014

Window blinds: hanging risk.

Siba Prosad Paul1, Ravendra Singh Bhadoria

  • 1Royal Albert Edward Infirmary, Wigan.

Community Practitioner : the Journal of the Community Practitioners' & Health Visitors' Association
|March 13, 2010
PubMed
Summary

Window blind cords pose a serious strangulation risk to children. Increased awareness among parents and healthcare providers is crucial for preventing these near-fatal injuries and implementing essential safety measures at home.

Area of Science:

  • Pediatrics
  • Public Health
  • Consumer Product Safety

Background:

  • Childhood injuries are a significant public health concern.
  • Window blind cords are common household items that present an often-overlooked hazard.
  • Near-fatal incidents highlight the need for greater awareness and preventative strategies.

Observation:

  • A case of near-hanging involving a window blind cord in a child is reported.
  • This incident underscores the potential for severe harm from seemingly innocuous objects.
  • The authors aim to increase awareness among healthcare practitioners and the general public.

Findings:

  • Window blind cords can cause near-fatal strangulation injuries in children.
  • Lack of awareness among caregivers contributes to the risk.

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  • Proactive education and safety measures are essential for prevention.

    • Implications:

    • Community practitioners should educate families about the dangers of window blind cords.
    • Parents and childcare providers must implement safety measures to mitigate risks.
    • Public health initiatives are needed to address this preventable cause of childhood injury.