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Related Concept Videos

Quality of Water01:19

Quality of Water

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In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
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Minerals01:26

Minerals

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Minerals are essential nutrients that the human body needs in small amounts to work properly. They play a vital role in many bodily functions, such as building strong bones and transmitting nerve impulses. Some minerals are needed for hormone production or to maintain a normal heartbeat. Major minerals include calcium, phosphorus, potassium, sulfur, sodium, chlorine, and magnesium, while trace minerals include iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.
 
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Drug Regulation01:25

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Drug regulation encompasses the management of drug usage by evaluating its safety and efficacy through assessments conducted by regulatory authorities. Regrettably, the history of drug regulation is marred by several catastrophic events. One such incident is the Elixir Sulfanilamide tragedy, in which the toxic compound diethyl glycol was included in a sweet-tasting medication, leading to numerous fatalities. This event prompted the enactment of the Food, Drug, and Cosmetic Act in 1938. Under...
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Halogens03:01

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Group 17 elements, known as halogens, are nonmetals. At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine a solid. Astatine is a highly unstable radioactive element, so currently, most of its properties are unknown due to its short half-life. Tennessine is a synthetic element also predicted to be in this group. 
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Waterproofing and Anti-Bacterial Admixtures in Concrete01:22

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Concrete's susceptibility to water absorption is due to the capillary action within the pores of its hydrated cement paste. This action draws water in, creating the need for waterproofing admixtures to prevent such penetration. The efficacy of these admixtures is contingent upon the water pressure, with variations arising from different conditions such as rain, capillary rise, or hydrostatic pressure in structures intended to hold water.
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Factors Affecting Solubility04:01

Factors Affecting Solubility

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Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
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Related Experiment Video

Updated: Dec 14, 2025

Implementation of a Hyperbolic Vortex Plasma Reactor for the Removal of Micropollutants in Water
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Water fluoridation: current challenges.

John Furness1, Sam J Oddie2, Simon Hearnshaw3

  • 1Paediatric Emergency Department, Leeds Teaching Hospitals NHS Trust, Leeds, UK John.Furness@nhs.net.

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Summary
This summary is machine-generated.

Community Water Fluoridation (CWF) effectively reduces childhood dental caries, particularly in deprived areas. Despite evidence, CWF is not widely implemented, necessitating urgent action and professional support for this vital public health measure.

Keywords:
children's rightscostingdentistryepidemiologygeneral paediatrics

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Area of Science:

  • Public Health
  • Pediatric Dentistry
  • Epidemiology

Background:

  • Dental caries is a leading cause of hospital admissions for children aged 6-10 years.
  • Community Water Fluoridation (CWF) is a proven, safe, and effective method for preventing dental caries.
  • CWF demonstrates higher efficacy in areas with greater socioeconomic deprivation.

Purpose of the Study:

  • To highlight the benefits of Community Water Fluoridation (CWF) in reducing childhood dental caries.
  • To address and refute misinformation and specious arguments against CWF implementation.
  • To advocate for the wider adoption of CWF, especially in underserved communities.

Main Methods:

  • Review of existing scientific literature on CWF efficacy and safety.
  • Analysis of barriers to CWF implementation in deprived areas.
  • Discussion of public health policy and advocacy strategies.

Main Results:

  • CWF significantly reduces dental caries prevalence and severity.
  • Deprived areas often lack CWF despite recommendations from Public Health England.
  • Opposition to CWF is frequently based on misinformation and emotional appeals.

Conclusions:

  • Implementing CWF is crucial for improving child dental health, particularly in vulnerable populations.
  • Urgent action is needed to overcome barriers and misinformation hindering CWF adoption.
  • Professional bodies should support the expansion of CWF programs, especially given disruptions to routine dental care.