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Why Drug Testing Is Necessary In Sports?
3/15/2010 1:39:00 AM
In present society, the economic and elusive rewards for exceptional athletic achievements and winning performances are significant. Therefore, there is a forceful influence on athletes to increase their on-field performance, which is the main objective of sports competition. Practically all athletes use different unnatural means to improve their body's natural performance while playing their individual sports.
Some substances and training methods are not designated as unfair competitive benefits, even if they are not available globally to all athletes because of their altering economic resources. Athletes are usually permitted to ingest non-muscle building digestive supplements like carbohydrates, electrolyte drinks, energy bars, vitamins, and minerals which improves athletic performance. At present, the use of creatine for muscle-building is also not treated to be "doping" or an illegal method of athletic performance enhancement.
But, athletes' habit of using of Federally controlled substances like anabolic androgenic steroids, along with designer steroids like THC (i.e., tetrahydrogestrinone), and steroid derivatives is considered as doping by sports governing bodies and, if detected, they are condemned by penalties. So, in order the maintain the ethics while participating in competition, drug testing is necessary in sports.
Effect of Various Drugs on Driving
3/8/2010 3:21:00 AM
Driving under the influence of drugs is a dangerous practice. Many people in spite of knowing the dire consequences involve in drugged driving. National Survey on Drug Use and Health reports that about 10 million people aged 12 years and above drove under the influence of the drugs in 2008.
For a person to drive safely, alertness, clear vision, physical coordination, quick reactions and the ability to make good judgment under pressure are very important. But when a person abuses drugs or alcohol, it affects the brain and impairs all the necessary qualities to make a safe ride.
Many drugs including alcohol reduce the driver’s ability to control the motor vehicle. Different drugs have different kinds of effects on a person’s driving skill. Some of the common drugs and their effects on driving are:
Cannabis and heroin slows down a person’s reaction time, distort perception of speed and distance. They also reduce concentration and physical coordination while driving.
Methamphetamine, ecstasy and cocaine excites the driver which may lead to over-confidence, rash driving, impairs reflexes and concentration on the driving.
Hallucinogens generally affect hearing, sight, perception of time and distance and the abuser may sense things that don’t exist in real.
Combination of drugs can lead to significant slow reaction times, visual distortion, impaired judgment in measuring speeds and distances.
Benefits Of Thermal Transfer Barcode Printers
3/4/2010 12:59:00 AM
Thermal transfer printers work by melting surface of ribbon, often known as a 'foil'. Thermal transfer printers are mainly used to print barcode labels.
Thermal printer is used at the point of sale, restaurants and in service stations. Thermal transfer labels have benefits over other processes, because they are persistent and will not get affected by heat or sunlight. This feature makes them useful for shipping labels as they are mostly exposed to the harsh elements. If shipping labels become faded or smudged, the whole intention of using barcode label would be waste. Barcode labels created by thermal transfer barcode printers have the capability to last until the package is dispatched to the recipient.
In many instances, barcodes are stick to the items for inventory control and to track location when they are kept in storage. The warehouse is generally subjected more to temperature changes and humidity. Regular labels are more prone to fade and becomes unreadable. This makes bar codes worthless. Barcode labels created by thermal transfer printers have an advantage over direct thermal labels, which is, the information is practically permanent and the items can be quickly recognized when located.
If a long lasting label which can withstand the damage due to rubbing, heat or humidity is required, and then thermal transfer labels are very much suitable. The other labels may be similar to these labels but will not resist rough handling which is considered important in a label application.
Qualities Of A Personal Fitness Trainer
3/2/2010 3:00:00 AM
A personal trainer or fitness trainer is a person who guides physically, motivates, and educates people about fulfilling their fitness goals. The essential qualities of a personal fitness trainer are:
- Personal trainer must have certification and education. A good quality personal trainer will have Master of Science degree in Exercise Physiology or Kinesiology and attains certification from a well-recognized body.
- A good personal trainer observes a client carefully to rectify technique errors, provide safety and watches indications of overexertion. A good personal trainer also observes environment for any dangers in the gym or outdoors.
- Good personal Trainer will not take an action to treat sports injuries on his own or suggests diets, drugs or supplements. When a client complains about pain, proper reference must be provided to acquire the correct medical help from a physician.
- A quality personal trainer modifies programming of components like cardiovascular endurance, weight control, strength training, flexibility and sports specificity (coordination, speed, skill acquisition) based on daily life activities, goals and needs.
- Good personal trainer may suggests proper assessment on current fitness statistics like aerobic capacity or maximum oxygen return, body composition, posture, blood pressure, etc which help client in reaching goals.
- Good personal trainer will not follow every latest fitness craze or hype.
- Good personal trainers will discuss what activities are suitable to them personally for themselves, but will preoccupy that their way is the only way to get trained.
- Good personal trainer will encourage communication and will never make client feel incompetent, but some discipline is essential to prevent sessions of mostly chat and no work.
- A quality personal trainer will have experience and will confess if they don't have an answer, but can seek advices from good resources like speaking with other personal trainers, health professionals, looking in their own personal library, or finding out from legitimate Internet sites.
- A good personal trainer provides both compatibility and reliability and can adjust to any type of personalities and can advise based on individual learning styles.
How To Choose Barcode Scanner
2/20/2010 5:35:00 AM
The are many types of barcode scanners available in the market from several years. The cost of scanners can range from $50.00 to several thousand dollars (some advanced scanners).
There are two basic classes of barcode scanners. They are image-based and laser-based. Image-based barcode scanners consist of a camera fixed in a barcode scanner. The camera is used to capture the image of the barcode and then convert using complex image techniques, which are used to decode the barcodes. Laser-based barcode scanners consists of mirrors and lenses to scan the barcodes.
Laser barcode scanners are generally more costly than image-based scanners due to their sophisticated equipment. Each type of barcode scanner has its own advantages and disadvantages. An image-based barcode scanner will not have internal movable or mobile parts, so they can withstand drops or knocks than laser barcode scanners. Moreover, image-based barcode scanners possess a smaller scanning distance (4 to 10 inches) compared to laser barcode scanners.
Whereas laser scanners have more chances to wear and tear due to their lenses. They not only possess a longer scanning distance but also can scan from a larger angle from the barcode. In order to run a register (to prepare catalog or record), image-based are best suited because it requires couple of inches to scan each item. In a warehouse, laser barcode scanners are more suitable because the barcodes must be scanned from a larger distance.
So, you must decide the parameters that must be covered when implementing a barcode scanner. The following points should be considered like: Will the scanner be spoiled or impaired during its use or can it be covered or shielded like the retail scanner on a shelf? Should your scanner must be mobile? What is your budget for scanner?