Gourt > Health > Search Engines
A search engine or search service is a program designed to help find information stored on a computer system such as the World Wide Web, inside a corporate or proprietary network or a personal computer. The search engine allows one to ask for content meeting specific criteria (typically those containing a given word or phrase) and retrieves a list of references that match those criteria. Search engines use regularly updated indexes to operate quickly and efficiently. Without further qualification, search engine usually refers to a Web search engine, which searches for information on the public Web. Other kinds of search engine are enterprise search engines, which search on intranets, personal search engines, which search individual personal computers, and mobile search engines. However, while different selection and relevance criteria may apply in different environments, the user will probably perceive little difference between operations in these. Some search engines also mine data available in newsgroups, large databases, or open directories like DMOZ.org. Unlike Web directories, which are maintained by human editors, search engines operate algorithmically. Most web sites which call themselves search engines are actually front ends to search engines owned by other companies.
History
The very first tool used for searching on the Internet was Archie. (The name stands for "archive" without the "v", not the character from the 'Archie' comic book series). It was created in 1990 by Alan Emtage, a student at McGill University in Montreal. The program downloaded the directory listings of all the files located on public anonymous FTP (File Transfer Protocol) sites, creating a searchable database of filenames.
While Archie indexed computer files, Gopher indexed plain text documents. Gopher was created in 1991 by Mark McCahill at the University of Minnesota. (The program was named after the school's mascot). Because these were text files, most of the Gopher sites became Web sites after the creation of the World Wide Web.
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Premature Births Are Fueling Higher Rates of Infant Mortality in U.S., Report Says
By DENISE GRADY Wed, 04 Nov 2009 05:53:48 -0000
A detailed analysis by government researchers offered insight into a longstanding problem for the American population.
Health Care Debate Focuses on Legal Immigrants
By JULIA PRESTON Wed, 04 Nov 2009 05:32:18 -0000
Latino leaders, worried that Congress might quietly cut back benefits for legal immigrants, have started an 11th-hour campaign to eliminate proposed waiting periods.
G.O.P. Counters With a Health Plan of Its Own
By ROBERT PEAR and DAVID M. HERSZENHORN Wed, 04 Nov 2009 04:19:24 -0000
The bill would reward states for reducing the number of uninsured and limit malpractice awards. It has no chance of passing.
CNN.com - Health
Do digital diaries mess up your brain?
Tue, 03 Nov 2009 10:16:48 -0500
If we rely on technology for documenting, sorting and storing information -- creating digital diaries, or "lifestreaming" -- what will become of our minds?
What women's symptoms really mean
Tue, 03 Nov 2009 12:41:56 -0500
If only your body were a little more honest, figuring out what's wrong when you don't feel right would be so much easier. But often a symptom -- maybe it's a sore back, cracked lips, tingling in your legs -- has an odd or unexpected explanation.
Pregnant mother, pregnant daughter battle H1N1
Mon, 02 Nov 2009 21:40:24 -0500
The unlikely tale of a mother-daughter pair in California: both pregnant, both battled H1N1. One wound up in the hospital; the other unable to even visit.
BBC News | Health | World Edition
Breast cancer changes with spread
Wed, 04 Nov 2009 01:13:11 -0000
Nearly 40% of breast cancer tumours change form when they spread, a study shows.
Aspirin 'only for heart patients'
Tue, 03 Nov 2009 01:03:59 -0000
Using aspirin to ward off heart attacks and strokes in those not suffering cardiovascular disease should stop, research says.
Memory test 'spots pre-dementia'
Tue, 03 Nov 2009 01:05:00 -0000
Memory and language tests can reliably reveal "hidden" early dementia, says a British team of experts.
Gateway - The National Library of Medicine Gateway allows users to search in multiple retrieval systems at the U.S. National Library of Medicine.
Kosmix - Categorized search engine for health topics.
Meta Description: [ Kosmix is a health search engine ]
Med Help International Search - Consumer medical search engine comprising articles, patient support groups, glossary, and QA.
Meta Description: [ Med Help's consumer medical search engine is the largest searchable patient library on the Net comprising: articles, patient support groups, glossary, Q&A ]
MedHunt - A tool from Health on the Net that searches the full text of 60,000 medical documents. Searches can be narrowed by location or type of source.
Meta Description: [ Search the internet for Medical Information with MEDHUNT, an intelligent search-engine: Use World-Wide Medical Search Option for All Medical Info - Use List Of Hospitals option for hospitals only and Support Communities option to find FAQS, mailing lists and newsgroups. ]
Medic8.com - Directory and medical search engine for healthcare professionals.
Meta Description: [ Medical search engine, UK family health guide, and directory of online healthcare resources... ]
Medical World Search - This tool has the ability to query other search engines, also provides a discussion forum, medical spelling and drug acronym devices. All users must register and pay annual membership fee.
Meta Description: [ A unique medical search engine understands medical concept, medical terminology and diseases. MWSearch provides drill down searches and queries to other search engines to find medical and health information on the web, medical and health news, products and serives. All information and news about ... ]
Vivísimo ClusterMed - Sends requests to the PubMed search engine and clusters the search results.
Meta Description: [ Too many search results? Clusty it! ]
Worldhealthcare.net - A UK based medical search engine providing informative resources from around the globe.
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