In general, detection is the extraction of intelligence from a carrier signal in a communication system. Note that this may be either an overt signal, as in a conventional radio broadcast, or a covert signal, as in steganography.
In opto-electronic systems, the generation of an electrical signal in response to a received optical input. For example, the optical signal received from an optical fiber is converted to an electrical signal in a detector, often by a photodiode.
In radio systems, the extraction of an AM signal from its carrier frequency.
More on [ Detection ]
Employment :: Investigation
Alcohol Analyzers :: Vending
Occupational Health and Safety Medicine
Substance Abuse :: Child Safety
Illegal :: Drugs

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OL2 On-Line Drug and Alcohol Testing Library - A comprehensive collection of legal material about workplace drug and alcohol testing.
Consortium of the Southwest - Drug testing business. Locations in Texas and eastern New Mexico.
G Associates, Inc. - Drug-free workplace testing services for companies regulated by the Federal Aviation Administration and Federal Highway Administration.
Aegis Analytical Laboratories, Inc. - Specializes in zero-tolerance drug testing.
American Marine Training - Random drug testing pool for marine captains, crew and any other business requiring drug testing.
Meta Description: [ Random Drug Testing Pool. For marine captains, crew and any other business requiring drug testing. ]
Aviation and Small Business Consortium Inc. - Specializes in providing drug and alcohol detection services to companies in the aviation and transportation industry.
Meta Description: [ ASBC-TSBC, The Aviation and Small Business Consortium (ASBC) offers full service drug and alcohol testing programs for the United States Department of Transportation and its modes. ASBC also provides a full service Drug and Alcohol Testing Program for businesses, custody cases, parents, and the g... ]
Cal-test - Offers a number of different drug test services, including in home tests.
Meta Description: [ CAL-TEST offers employers, courts, schools and private drug and alcohol testing services nationwide. WE HAVE COLLECTION SITES NEAR YOU! We implement policy and proceduers for your company so you can legally address employee drug abuse. ]
CCH Business Owner's Toolkit - Discusses reasons to test employees for drug use. Features a map utility to help you locate state laws about the subject.
Meta Description: [ Drug testing has become more of a hot issue as drug abuse becomes a more widespread problem in the United States. ]
Central Medical Review - Provides drug testing services to employers of commercial truck drivers and other federally regulated employees.
Meta Description: [ Drug testing programs for commercial drivers and other employees, reasonable suspicion online training ]
CERA, Inc. - Provides substance abuse screening through the use of behavioral based technology.
Meta Description: [ CERA provides medical-legal support services including case review, expert witnesses, e-record and life care plans. ]
ChemScreen, Inc. - Nationwide drug and alcohol screening company utilizing hair, urine, and oral fluids.
Meta Description: [ ChemScreen, Inc. is a national drug and alcohol screening company. We specialize in managing both DOT and Non-DOT programs. ChemScreen utilized hair, urine and oral fluid testing methodologies and offers 24-hour post accident handling. ]
Clinical Collection Management, Inc. - Offers a wide variety of products and services to help organizations screen for substance abuse.
Meta Description: [ Drug Test Services St Louis, MO and National. ]
Clinical Reference Laboratory - Servicing the insurance industry with substance abuse testing and corporate wellness services.
Meta Description: [ Clinical Reference Laboratory (CRL) offers leading-edge diagnostic testing services in the areas of Toxicology, Corporate Wellness, Life Insurance, Clinical Trials, and Genomics. ]
Clinigen Drug Testing and Screening - Provides clinical drug testing services for employers, institutions, and agencies throughout the United States.
Meta Description: [ At Clinigen we provide drug screening, substance abuse treatment services and clinical screens. ]
Compass Vision, Inc. - Provides of substance abuse services for professional healthcare monitoring.
Meta Description: [ Top provider of substance abuse testing solutions for healthcare monitoring programs. ]
Concorde, Inc. - Services include drug urine collection, laboratory analysis, Medical Review Officer services, results reporting, and record keeping.
Drug Abuse Recognion Training - Trains employers, schools, and law enforcement to recognize and document drug impairment. Other services include expert witness.
Drug and Alcohol Testing Industry Association (DATIA) - The National Association for the drug and alcohol testing industry, with over 1000 members.
Meta Description: [ The Drug and Alcohol Testing Industry Association (DATIA) is the national voice for program managers, laboratories, collection sites, third party administrators and other businesses which are a key part in drug deterrence and detection. DATIA, formed in 1994, is a 1200 member association. ]
Drug Free Workplace - Information for drug-free workplace professionals.
Drug Free Workplaces, Inc. - Provides drug-free workplace services to small and medium sized businesses.
Meta Description: [ Provides drug-free workplace services to small and medium sized businesses. ]
Drug Screens Plus - We provide a variety of testing programs for government institutions, public companies, and private businesses.
Drug Test Coordinators, Inc. - Offers a full range of employee drug and alcohol testing services including development of drug free workplace policies.
Meta Description: [ Drug Test Coordinators, Inc. offers a full range of employee drug testing services beginning with the design and implementation of a drug free workplace policy designed specifically to meet the needs of each individual client company. ]
Drug Test Facts - Offering a guide to understanding urine and hair follicle drug tests and drug detection times.
Meta Description: [ A guide to understanding urine and hair follicle
tests and drug detection times. ]
Florida Drug Screening - National provider of drug and alcohol testing and specimen collection services. Testing and specimen collection services including DOT, FAA, and paternity DNA. Create a drug-free environment at no cost.
Meta Description: [ Drug testing & Alcohol testing and specimen collection services including DOT, FAA and Paternity DNA - Florida Drug Screening ]
Global Drug Testing Services - Drug testing services which include hair, urine, saliva, blood, and fingernail analysis. Also provides consultation, seminars, and training.
Meta Description: [ Global Drug Testing Services ]
Institute for a Drug-Free Workplace - An independent, self-sustaining coalition of businesses, business organizations, and individuals. Features information to help employers develop, implement, and maintain a drug-free workplace program.
International Journal of Drug Testing - Focuses on research of emerging technologies in drug testing, such as hair, saliva, and sweat analysis.
Medimpex United - Procedures, laws, and news about drug testing in schools and the workplace.
Meta Description: [ Source of any drug screen testing solutions, drug screening and drug test kits, variety of test kits, top rated service and affordable prices for any drug abuse testing kits. ]
National Clearinghouse for Drug and Alcohol Information - Making the workplace drug free; a kit for employers.
Norchem Drug Testing Laboratory - Offers premium drug testing for a broad variety of law enforcement, social services, and employment organizations.
North State Alliance Consortium - A full service consortium and workplace drug testing facility for DoT, Federally regulated and non-regulated companies and agencies. Services include training, counseling, and consultataion
Meta Description: [ Full service Consortium and Workplace Drug Testing for DoT and non-regulated companies, plus Substance Abuse Professional, Collectors, Counseling, Training and Reasonable Suspicion education services ]
NorthAmerican Transportation Association, Inc. - A nationally accredited drug and alcohol program by DATIA.
Meta Description: [ NTA is a nationwide, accredited, provider, of dot approved drug testing, state drug testing, low cost drug testing, occupational accident programs, health insurance for trucking, datia, drug testing, transportation benefits, member organization including TBO dedicated to providing services and be... ]
Norton Medical Industries - Federally approved drug and alcohol testing services.
Meta Description: [ Employee drug and alcohol testing programs and workers education in compliance with federal regulations for drug screening and workplace drug use control. drug testing consortium, puc, dot drug test. ]
OHS Health and Safety Services, Inc. - Provides on-site and off-site alcohol and drug-abuse testing services.
Meta Description: [ Drug testing companies.Drug-Free Workplace company employee drug testing. Drug-testing for companies concerned with employee drug-abuse. ]
Omega Labs - Information about drug testing available for both urine and hair.
Meta Description: [ Omega Laboratories, Inc. is a state-of-the-art drug testing company ready to meet your testing needs and offering . . . > Hair Drug Testing > Laboratory Urinalysis > Oral Fluids Drug Testing > Instant Urine Drug Screen Kits > DNA Paternity Testing > Fore ]
Partners in Safety - Offers a wide variety of workplace drug and alcohol testing and consulting.
PharmChem Laboratories, Inc. - An independent laboratory providing integrated drug testing products and services worldwide.
Pinnacle Employee Testing - Serves the testing needs of businesses and school districts by providing full-service employee drug testing.
Meta Description: [ Pinnacle Medical Management meets the needs of large corporations by providing a turnkey drug and alcohol testing package that reduces the risk of liability. ]
Pipeline Testing Consortium, Inc - Provides administration of federally mandated Alcohol and Drug programs which includes full service in regard to meeting the Department of Transportation regulations. Includes contact details, services and links.
Psychemedics Hair Testing - Provides a patented hair test technology for the detection of drugs of abuse.
Meta Description: [ Superior drug testing and detection of Drug Abuse with a Patented Hair Analysis Method. ]
Random Drug Screens, Inc. - Specializes in drug testing services and the design and implementation of drug-free workplace programs.
Meta Description: [ Random Drug Screens, Inc. is a fullservice drug testing company that specializes in testing, educating and
training employees and applicants, as well as, designing and implementing drug-free workplace programs ]
RapidCup drug and alcohol testing - RapidCup features rapid drug testing kits and digital alcohol testing. For home use and employee testing programs.
Meta Description: [ RapidCup features instant drug testing kits and digital alcohol testing. The most accurate instant result drug test on the market. drug testing kit,
employee drug testing, home drug test. Call toll free 1-800-441-TEST ]
Source1 Solutions - Experience in the fields of drug testing and background research, accompanied by a vast array of products and services.
Meta Description: [ Source1 is a Professional Provider of HR Services, including Drug Testing, Background Checks, Employee Assistance Programs and Occupational/Physical Therapy. ]
Sport Safe Testing Service, Inc. - Specializes in student drug testing programs.
Meta Description: [ Student drug testing specialists. Design and implement a student drug testing program. Student drug testing saves lives. Help your school develop a student drug testing policy. See the most recent news on Student Drug Testing ]
The SASSI Institute - A one-page paper and pencil test that identifies people who suffer from substance dependence.
Tricho-Tech Limited - Testing and detection using hair analysis for professional organisations in the management of drug misuse and addiction.
Meta Description: [ Drug testing and detection using hair and saliva for professional organisations in the management of drug misuse and addiction. ]
US Screening Source - Drug testing kits and screening. FDA approved products can screen for up to eleven drugs including marijuana and cocaine. Drug testing advice and pre-employment screening.
Meta Description: [ iCup Urine Drug Tests, iScreen OFD Saliva Drug Test Kits, and Alcohol Tests ]
WPCI Online - Provider of drug testing programs, products and services.
Meta Description: [ Employee & Employment Drug testing services, drug testing administration, hair and urine drug testing, employee drug testing policy creation from WPCI ]
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