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Information about Cleanliness

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''Note: This article title may be easily confused with Cleanness.


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Pelican cleaning itself
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Large Brown Mantis cleaning itself
Cleanliness is the absence of dirt, including dust, stains, bad smells and clutter. Purposes of cleanliness include health, beauty, absence of offensive odor, avoidance of shame, and to avoid the spreading of dirt and contaminants to oneself and others. In the case of glass objects such as windows or windshields, the purpose can also be transparency. Washing is one way of achieving cleanliness, usually with water and often some kind of soap or detergent. In more recent times, since the germ theory of disease, it has also come to mean an absence of germs and other hazardous materials. In industry, certain processes such as those related to integrated circuit manufacturing, require conditions of exceptionally immaculate cleanliness which are achieved by working in cleanrooms.

A recent shift has now taken place to recognise that ‘dirt’ may play a useful role in our immune systems. This shift in thinking can be traced back to 1989, when David Strachan put forth the "hygiene hypothesis" in the British Medicine Journal. Strachan looked at the records of 17,000 British children and found that the greater number of older siblings they had, the less likely they were to come down with hay fever—a disease which, despite its name, is far more common in the city than the country. Strachan wondered if the older children were bringing home more viral infections to their younger siblings, priming their immune systems so they could better tolerate pollen. The "hygiene hypothesis" has now been linked with asthma, allergies, intestinal diseases including Crohn's disease , childhood leukaemia and atopic dermatitis and the list is growing. It can apply to humans, animals, clothing, food, eating utensils (plates, pans, cups, etc.), other movable objects, floors, windows, walls, toilets, etc.

Cleanliness is essential to successful electroplating, since molecular layers of oil can prevent adhesion of the coating. This industry has developed many specialized techniques for cleaning, as well as tests for cleanliness. The most commonly used tests rely on the wetting behaviour of a clean hydrophillic metal surface.

Cleanliness is also important to vacuum systems to reduce outgassing.

See also

References

''Note: This article title may be easily confused with Cleanliness.
Cleanness is a Middle English alliterative poem written in the late 14th century.
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Dust is a general name for minute solid particles with diameters less than 500 micrometers. On Earth, dust occurs in the atmosphere from various sources; soil dust lifted up by wind, volcanic eruptions, and pollution are some examples.
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A stain is a discoloration that distinguishes itself from the material on which it is found. It can be unintentional, in the case of domestic stains on fabric, cloth, or other material, or it can be intentional.
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odor or odour (see spelling differences) is a volatilized chemical compound, generally at a very low concentration, which humans and other animals perceive by the sense of olfaction. Odors are also called smells, which can refer to both pleasant and unpleasant odors.
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In 1948, in its constitution, the World Health Organization (WHO) defined health as "a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity" [1].
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Beauty is commonly defined as a characteristic present in a person, place, object or idea that provides a perceptual experience of pleasure, meaning or satisfaction to the mind or to the eyes, arising from sensory manifestations such as a shape, color, personality, sound, design or
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Please help Wikipedia by adding references. See the for details.
This article has been tagged since September 2007.

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In optics, transparency is the material property of allowing light to pass through. In mineralogy, another term for this property is diaphaneity. The opposite property is opacity. Transparent materials are clear: they can be seen through.
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Washing is one way of cleaning, namely with water and often some kind of soap or detergent. Washing is an essential part of good hygiene and health.

Often people use soaps and detergents assist in the emulsification of oils and dirt particles so they can be washed away.
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Water is a common chemical substance that is essential to all known forms of life.[1] In typical usage, water refers only to its liquid form or state, but the substance also has a solid state, ice, and a gaseous state, water vapor.
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Simple Object Access Protocol, and lately also Service Oriented Architecture Protocol, but is now simply SOAP. The original acronym was dropped with Version 1.2 of the standard, which became a W3C Recommendation on June 24 2003, as it was considered to be misleading.
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Detergent is a compound, or a mixture of compounds, intended to assist cleaning. The term is often used to differentiate between soap and other chemical surfactants used for cleaning purposes.
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The germ theory of disease, also called the pathogenic theory of medicine, is a theory that proposes that microorganisms are the cause of many diseases. Although highly controversial when first proposed, it is now a cornerstone of modern medicine and clinical microbiology,
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hazardous waste is waste that poses substantial or potential threats to public health or the environment and generally exhibits one or more of these characteristics:
  • ignitable (i.e. flammable)
  • oxidizing
  • corrosivity
  • toxic
  • radioactive
  • eco-toxic
U.S.
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integrated circuit (also known as IC, microcircuit, microchip, silicon chip, or chip) is a miniaturized electronic circuit (consisting mainly of semiconductor devices, as well as passive components) that has been manufactured in the surface of a
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For the Cleanroom software engineering methodology, see .


A cleanroom is an environment, typically used in manufacturing or scientific research, that has a low level of environmental pollutants such as dust, airborne microbes, aerosol
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In medicine, the hygiene hypothesis states that a lack of early childhood exposure to infectious agents, and later a lack of exposure to helminths as adults, increases susceptibility to allergic diseases [1].

Overview

First proposed by David P.
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Hay Fever is a comic play written by Noel Coward in 1924 and first produced in 1925 with Marie Tempest as the first Judith Bliss. Best described as a cross between high farce and a comedy of manners, the play is set in a British country house in the 1920s, and deals with the four
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In medicine, the hygiene hypothesis states that a lack of early childhood exposure to infectious agents, and later a lack of exposure to helminths as adults, increases susceptibility to allergic diseases [1].

Overview

First proposed by David P.
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Asthma
Classification & external resources

ICD-10 J 45.
ICD-9 493

OMIM 600807
DiseasesDB 1006
MedlinePlus 000141
eMedicine med/177   emerg/43

MeSH C08.127.
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worldwide view of the subject.
Please [ improve this article] or discuss the issue on the talk page.


Classification & external resources

ICD-10 T 78.4
ICD-9 995.
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Crohn's disease
Classification & external resources

The three most common sites of intestinal involvement in Crohn's disease are ileal, ileocolic and colonic.[]
ICD-10 K 50.
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Leukemia
Classification & external resources

A Wright's stained bone marrow aspirate smear of patient with precursor B-cell acute lymphoblastic leukemia.
ICD-10 C 91. -C 95.
ICD-9 208.
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Dermatitis
Classification & external resources

MeSH D003872 Dermatitis is a blanket term literally meaning "inflammation of the skin". It is usually used to refer to eczema, which is also known as Dermatitis eczema.
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Food is any substance, usually composed primarily of carbohydrates, fats, water and/or proteins, that can be eaten or drunk by an animal or human being for nutrition or pleasure.
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eating (formally, ingestion) is the process of consuming nutrition, i.e. food, for the purpose of providing for the nutritional needs of an animal, particularly their energy requirements and to grow.
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window is an opening in an otherwise solid and opaque surface that allows the passage of light and, if not closed or sealed, air and sound. Windows are usually glazed or covered in some other transparent or translucent material.
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