A mesh is a flat, semi-permeable barrier made of connected strands of metal, fiber, or other flexible/ductile material. Mesh is similar to web or net in that it has many attached or woven strands.

Types of mesh

• A plastic mesh is extruded, oriented, expanded or tubular. Plastic mesh can be made from polypropylene, polyethylene, nylon, PVC or PTFE.
• A metal mesh can be woven, welded, expanded, photo-chemically etched or electroformed (screen filter) from steel or other metals.
• In clothing, a mesh is often defined as a loosely woven fabric that has a large number of closely-spaced holes, frequently used for modern sports jerseys and other clothing.

Uses of meshes

• Meshes are often used to screen out unwanted things, such as insects. Wire screens on windows and mosquito netting can be considered as types of meshes.
• Wire screens can be used to shield against radio frequency radiation, e.g. in microwave ovens and Faraday cages.
• On a larger scale, in terms of the spaces in between, chicken wire and chain-link fences can also be considered a type of mesh.
• Metal and nylon wire mesh filters are used in water filtration, and making of beverages such as coffee.
• Wire mesh is used in guarding for secure areas and as protection in the form of vandal screens.
• Wire mesh can be fabricated to produce park benches, waste baskets and other baskets for material handling.
• Wire mesh is the separation medium in vibratory screening units.
• Mesh is also used as pockets for Lacrosse sticks.
• A huge quantity of mesh is being used for Screen printing work.There various kind of mesh count is used for different printing.

See also

• Mesh (scale)
• Gauze

eo: Maŝo

Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. Created and updated by the United States National Library of Medicine (NLM), it is used by the MEDLINE/PubMed article database and by NLM's catalog of book holdings. MeSH can be browsed and downloaded free of charge on the Internet. The yearly printed version was discontinued in 2007.

In MEDLINE/PubMed, every journal article is indexed with some 10-15 headings or subheadings, with one or two of them designated as major and marked with an asterisk. When performing a MEDLINE search via PubMed, entry terms are automatically translated into the corresponding descriptors (see Details tab in PubMed). Furthermore, by default all the descriptors below the given one in the hierarchy are included in the search.

Structure of MeSH

The 2008 version of MeSH contains a total of 24,767 subject headings, also known as descriptors. Most of these are accompanied by a short definition, links to related descriptors, and a list of synonyms or very similar terms (known as entry terms). Because of these synonym lists, MeSH can also be viewed as a thesaurus.

Descriptors

Description

Qualifiers

Supplements

MeSH has been translated into numerous other languages and allows retrieval of documents from different languages.

Top level categories

• Anatomy [A]
• --- body regions
• --- musculoskeletal system
• --- digestive system
• --- respiratory system
• --- urogenital system
• --- endocrine system
• --- cardiovascular system
• --- nervous system
• --- sense organs
• --- biological tissues
• --- cells
• --- fluids and secretions
• --- animal structures
• --- stomatognathic system
• --- hemic and immune systems
• --- embryonic structures
• --- integumentary system

• Organisms [B]
• --- animals
• --- algae
• --- bacteria
• --- viruses
• --- fungi
• --- plants
• --- archaea
• --- mesomycetozoea

• Diseases [C]
• --- bacterial infections and mycoses
• --- virus diseases
• --- parasitic diseases
• --- neoplasms
• --- musculoskeletal diseases
• --- digestive system diseases
• --- stomatognathic diseases
• --- respiratory tract diseases
• --- otorhinolaryngologic diseases
• --- nervous system diseases
• --- eye diseases
• --- urologic and male genital diseases
• --- female genital diseases and pregnancy complications
• --- cardiovascular diseases
• --- hemic and lymphatic diseases
• --- congenital, hereditary, and neonatal diseases and abnormalities
• --- skin and connective tissue diseases
• --- nutritional and metabolic diseases
• --- endocrine system diseases
• --- immune system diseases
• --- disorders of environmental origin
• --- animal diseases
• --- pathological conditions, signs and symptoms

• Chemicals and Drugs [D]
• --- inorganic chemicals
• --- organic chemicals
• --- heterocyclic compounds
• --- polycyclic compounds
• --- macromolecular substances
• --- hormones, hormone substitutes, and hormone antagonists
• --- enzymes and coenzymes
• --- carbohydrates
• --- lipids
• --- amino acids, peptides, and proteins
• --- nucleic acids, nucleotides, and nucleosides
• --- complex mixtures
• --- biological factors
• --- biomedical and dental materials
• --- pharmaceutical preparations
• --- chemical actions and uses

• Analytical, Diagnostic and Therapeutic Techniques and Equipment [E]
• --- diagnosis
• --- therapeutics
• --- anesthesia and analgesia
• --- surgical procedures, operative
• --- investigative techniques
• --- dentistry
• --- equipment and supplies

• Psychiatry and Psychology [F]
• --- behavior and behavior mechanisms
• --- psychological phenomena and processes
• --- mental disorders
• --- behavioral disciplines and activities

• Biological Sciences [G]
• --- biological sciences
• --- health occupations
• --- environment and public health
• --- biological phenomena, cell phenomena, and immunity
• --- genetic processes
• --- biochemical phenomena, metabolism, and nutrition
• --- physiological processes
• --- reproductive and urinary physiology
• --- circulatory and respiratory physiology
• --- digestive, oral, and skin physiology
• --- musculoskeletal, neural, and ocular physiology
• --- chemical and pharmacologic phenomena
• --- genetic phenomena
• --- genetic structures

• Physical Sciences [H]
• --- natural sciences

• Anthropology, Education, Sociology and Social Phenomena [I]
• --- social sciences
• --- education
• --- human activities

• Technology and Food and Beverages [J]
• --- technology, industry, and agriculture
• --- food and beverages

• Humanities [K]
• --- humanities

• Information Science [L]
• --- information science

• Persons [M]
• --- persons

• Health Care [N]
• --- population characteristics
• --- health care facilities, manpower, and services
• --- health care economics and organizations
• --- health services administration
• --- health care quality, access, and evaluation

• Publication Characteristics [V]
• --- publication components (publication type)
• --- publication formats (publication type)
• --- study characteristics (publication type)
• --- support of research

• Geographic Locations [Z]
• --- geographic locations

See also

• Medical literature retrieval
• Medical classification
• Controlled vocabulary

External links

• Medical Subject Heading Home provided by National Library of Medicine, National Institutes of Health (U.S.)
• MeSH database tutorials
• Browsing MeSH:
• Entrez
• MeSH Browser
• Visual MeSH Browser mapping drug-disease relationships in research
• GoPubMed (above)
• MeSHine
• Reference.MD
• SHARing Point
• List of qualifiers - 2008

• In mechanics: gear wheels mesh with each other
• Mesh, a type of material
• mesh size (e.g. Tyler, U.S., etc.), specifications for mesh material used to separate particles by size
• Mesh (band), a British musical band
• Mesh STL (now known as Modern Day Zero), a St. Louis rock band
• Mesh (mathematics), a concept in mathematics
• MeSH, an acronym for Medical Subject Headings
• The structural formula of the chemical methanethiol (MeSH)
• Number sign
• In computing:
• A polygon mesh in 3D computer graphics
• Mesh network, a highly interconnected network of computers or networking hardware
• "Macintosh Enhanced SCSI Hardware" (MESH), the Power Macintosh MESH SCSI controller
• MESH (cipher), an encryption algorithm
• Mesh Computers, a British computer manufacturer
• Microsoft Live Mesh, a file/folder synchronization system
• Mesh (electronics), an elemental circuit loop in network analysisSynonyms
• Grid
• Lattice