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Related Concept Videos

Free-falling Bodies: Example01:05

Free-falling Bodies: Example

An object falling without any air resistance under the influence of gravitational force is said to be in free-fall. For free-falling bodies, the acceleration due to gravity is constant, irrespective of their mass. Free-fall is experienced not only by objects falling downward, but also by all objects whose motion is influenced by gravitational force alone. The dynamics of free-fall motion can be calculated using kinematic equations of motion, since free-fall acceleration is constant.
The...
Free-falling Bodies: Introduction01:07

Free-falling Bodies: Introduction

All objects, neglecting air resistance, fall with the same acceleration towards the Earth's center due to the force exerted by the Earth's gravity. This experimentally determined fact is unexpected because we are so accustomed to the effects of air resistance and friction that we expect light objects to fall slower than heavier ones. People believed that a heavier object had a greater acceleration when falling until Galileo Galilei (1564–1642) proved otherwise. We now know this is not the case.
Rolling With Slipping01:14

Rolling With Slipping

Rolling with slipping is a physical phenomenon that occurs when a rolling object experiences both rotational and linear motion but also experiences frictional forces that cause slipping. This phenomenon can occur in various situations, such as when a tire rolls on a wet road or a ball rolls on a rough surface.
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Types Of Collisions - I01:04

Types Of Collisions - I

When two objects come in direct contact with each other, it is called a collision. During a collision, two or more objects exert forces on each other in a relatively short amount of time. A collision can be categorized as either an elastic or inelastic collision. If two or more objects approach each other, collide and then bounce off, moving away from each other with the same relative speed at which they approached each other, the total kinetic energy of the system is said to be conserved. This...
Simple Pendulum01:10

Simple Pendulum

A simple pendulum consists of a small diameter ball suspended from a string, which has negligible mass but is strong enough to not stretch. In our daily life, pendulums have many uses, such as in clocks, on a swing set, and on a sinker on a fishing line.
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Hydraulic Jump

A hydraulic jump is a sudden rise in fluid depth in open channels, occurring when high-velocity (supercritical) flow transitions to low-velocity (subcritical) flow. This phenomenon requires an upstream Froude number greater than 1, as flows with Fr1<1 remain subcritical, making a hydraulic jump impossible due to the need for negative head loss, which violates thermodynamic principles.The characteristics of a hydraulic jump depend on the upstream Froude number and are classified as...

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Design and Analysis for Fall Detection System Simplification
08:05

Design and Analysis for Fall Detection System Simplification

Published on: April 6, 2020

Catch me when I fall.

Catharine Sadler

    Nursing Standard (Royal College of Nursing (Great Britain) : 1987)
    |January 31, 2007
    PubMed
    Summary

    Maternity mental health issues affect one in six women. However, there is a significant shortage of services available for the prevention and treatment of these critical conditions.

    Area of Science:

    • Perinatal mental health
    • Women's health
    • Mental health services research

    Background:

    • Maternal mental health conditions represent a significant public health concern.
    • Existing literature indicates a high prevalence of perinatal mental health issues among women.

    Purpose of the Study:

    • To highlight the prevalence of maternity-related mental health problems.
    • To identify the critical shortage of available support services.

    Main Methods:

    • Analysis of recent reports and epidemiological data.
    • Review of current service provision for perinatal mental health.

    Main Results:

    • Approximately one in six women experience mental health challenges during the maternity period.

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  • There is a documented inadequacy in the supply of specialized services for prevention and treatment.

    • Conclusions:

    • The high incidence of maternity-related mental health issues necessitates urgent attention.
    • Expanding and improving access to mental health services is crucial for maternal well-being.