What is Bluetooth?

Bluetooth technology specifies a two-way, short-range radio link that enables communication between PCs, mobile phones, PDAs, and other computing, electronic, and home theatre equipment. With Bluetooth, you can easily synchronize contact or calendar data between a PDA and laptop, talk on a hands-free phone, or print without cables. It is a cable replacement technology like infrared, but offers many advantages over infrared.

The Bluetooth specification focuses on keeping costs low, power consumption minimal, and the size small. Its low power consumption means it can be used in battery-powered devices. Bluetooth offers faster data rates and greater   transmission  distances compared with infrared and there are no line-of-site restrictions. It operates at the 2.4 GHz radio frequency, ensuring worldwide operability.

History

Bluetooth is named after a 10th century Danish king, Harald Blatand (Harld Bluetooth) who was known for uniting warring groups in current-day Norway, Sweden, and Denmark. It was originally developed by Ericsson, but is now managed by the Bluetooth Special Interest Group (SIG).

The Bluetooth SIG is an industry group with members from the telecommunications, computing, and chip manufacturing industries. To date over 2000 companies are members. The Bluetooth SIG oversees a qualification program to ensure compliance with the standard and interoperability with other Bluetooth devices. Any device bearing the Bluetooth logo has successfully completed interoperability testing.

Technical Details

Speed: The gross data rate supported by Bluetooth is 1 Mbps. Actual data rates are 432 kbps for full-duplex and 721 kbps for asymmetric  transmission .

Frequency: Bluetooth uses the unlicensed ISM (Industrial, Scientific, and Medical) band at 2.4 GHz. In most countries, this band is available. In a few countries it is reserved for military use, but even these countries are moving to make the band available for general use. Because Bluetooth shares the same frequency range as 802.11b WLAN products, these two technologies cannot operate in the same space under some conditions.

Security: Bluetooth is designed to be as secure as wire using authentication and 128-bit encryption. Applications can also build their own security on top of the Bluetooth connection.

 Transmission  distance: Bluetooth’s typical range is up to 10m. The range depends on the radio power class used. A class 2 radio has a typical range of 10m. More powerful classes support longer ranges and have higher output powers. Most devices use a class 2 radio and mobile devices, like mobile phones, where low power consumption is crucial, can only use a class 2 radio.

Architecture: With Bluetooth, up to 8 devices can be connected simultaneously. A piconet is the term for a collection of Bluetooth devices connected in an ad hoc fashion. All devices are peer units, but one device acts as a master and the other slaves for the duration of the piconet connection. Each piconet can support up to 3 full-duplex voice devices. Within a 10m area, there can be up to 10 piconets.

Applications

Bluetooth is becoming the preferred wireless technology in the WPAN (Wireless Personal Area Network). Personal applications include:

– Users can connect PCs to transfer files.

– Workers can collaborate on the same document using Microsoft NetMeeting.

– Users can connect to a printer without cables.

– Users can synchronize data between a handheld PDA and laptop.

– Users can listen to music via a wireless headset.

– Users can talk on their mobile phone with a wireless headset.

– Users can connect their laptops to the internet using their mobile phone’s GPRS or UMTS network.

A Buyer’s Guide to Kids ATV

Buying a kids ATV (All Terrain Vehicle) could be a confusing task. Often, most people do not know how to go about buying the ATV. There are so many factors to consider. Size, make, price and safety are examples of factors that must be taken into account. Of course, looks too play an important part. After all, your child will not accept a kids ATV that doesn’t look cool! So, how do you buy the right bike?

Size: When it comes to size, most parents make big mistakes. It is common for them to buy a kids ATV that is one size bigger so that their child can grow into the bike gradually. But, buying a quad bike that is bigger than the required size is dangerous. Your child should have comfortable access to the handle bars, brake and accelerator. If they cannot reach these parts comfortably, it could be dangerous. Parents must also consider the size of the engine. If the engine is too powerful, it could go out of control. 50cc engines are best suited for young children.

Quality: When you buy kids ATV, it is important to consider the quality of the bike. A quality bike equates to lesser number of break-downs, repairs and low maintenance costs. Reputed brands are highly conscious of the quality of their machines. Also, since kids grow out their ATVs pretty fast, you need to consider your re-selling options. A reputed brand fetches much more when you want to resell. If you are about to buy a brand that sounds new, find out more about warranties, guarantees and so on.

Safety: Kids ATV must keep to high safety standards. High quality quads have a large number of safety features. Some even have safety features that may not be present in adult ATVs. Examples include kill switches which help kill the engine in case of trouble. Remote controls allow parents to control the ATVs, in case of necessity. A safe engine keeps your child safe.

The ATV is also known as the quad or four wheeler. According to the ANSI (American National Standards Institute), the ATV is a vehicle that is equipped to travel on all terrains. It has four low pressure tires and a handlebar. The vehicle is legal in some countries and not allowed on the roads in other countries. Regardless, kids need to learn how to be safe on the kids ATV before they can graduate to more powerful ATVs.

Kids between the ages of 6 and 12 must always ride a kids ATV with a 70cc engine or lesser. As age and experience increase, they can opt for more advanced models. It is necessary to buy the ATV that suits your child’s physical make up. In this regard, you cannot accept any industry norms. The only way to find out is to take your child for a test drive. Your child must be able to shift gears if you intend to buy manual   transmission . Otherwise, go for the automatic ATVs.

Protect Yourself From Sexually Transmitted Diseases: Promote Safe Sex

Sexually active persons are often victims of sexually transmitted diseases. While most people consider sex as a need, it is also a must that you should know all that you could about certain consequences of engaging in sexual activities especially when you change partners often. That is why be careful when choosing your sexual partner and make sure to maintain a clean personal hygiene. Sexually transmitted diseases are often caused by bacterial infection. While most kinds of these diseases are curable, HIV in particular is deadly. So if you want to enjoy a longer life span while enjoying the good things life has to offer keep yourself in check at all times by doing STD tests.

Sexually transmitted disease tests are often conducted in clinics with the help of a medical expert. However, for most people who find it inconvenient by setting an appointment for a test, a STD test can be conducted at home with STD test kits. These test kits can be purchased online and delivered straight to your doorsteps. This is truly a convenient method of keeping yourself in check since these cases are highly sensitive.

Even if you choose to get tested at a clinic, your results are still kept confidential. STD test kits have easily understandable instructions with it that can be easily followed to determine the result. Once you see a positive result, do not panic. Bear in mind that it is better to have found it an earlier stage to determine the best and fast way to cure your infection.

There are different kinds of sexually transmitted diseases. There are those which can only be spread through pure sexual contact either by oral, anal, or vaginal sex. There are also kinds which can be transmitted without sexual contact. The best way to prevent yourself from getting infected is of course by abstinence, avoiding sex. While most people cannot do this method, the use of condom is the second best method.

Although this is not full proof, with proper use, you can still enjoy the benefits of sex and peace of mind that you are safe from getting infected at least. Knowing more about STDs and promoting safe sex can help reduce the case of sexually transmitted diseases especially on young people who are sexually active.

If you happen to change partners often, keep your body in check at all times. If you happen to experience slight changes be sensitive enough to care and conduct STD tests at the convenience of your own home. Most of these sexually transmitted diseases do not show symptoms at the early stage and when left untreated can cause complications which can never be cured even on a long term basis. As long as it is not HIV, there is a sure way to rid yourself of bacteria that cause such infections. Always maintain proper and good hygiene especially on sensitive body parts.

Herpes and Pregnancy

Herpes, both oral and genital, are highly communicable diseases caused by the two strains of the Herpes Simplex Virus: HSV-1 and HSV-2. Genital herpes is transmitted sexually and is rarely transmitted from a pregnant mother to her unborn child, but could prove fatal for the unborn infant if it is transmitted.

It is possible, though unlikely that someone can transmit the virus through the placenta during pregnancy. If this happens, chances of the baby being born with a defect or a miscarriage increase.

The   transmission  also depends upon the stage of pregnancy in which the primary episode of herpes sets in. If the women had primary genital herpes during the first trimester, then there are less chances of the baby being infected. This is because it usually takes the body three to four weeks to buildup antibodies against the virus.

So if herpes happens at the onset of pregnancy, the body gets enough time to build up the immune system. As a result, these antibodies are also passed onto the baby. Generally, mothers can have a normal vaginal delivery.

But this is not so if the woman gets the infection in the second or third trimester of pregnancy. If the blood tests confirm that the women has never had herpes before the experts will recommend a caesarian delivery. This is because at these stages, the body does not get enough time to build up the immune system and the chances of  transmission  are extremely high.

It is easier to prevent herpes than it is to cure it. The highest risk to an infant comes from an infected mother who contracts HSV-1 or 2 during pregnancy and the best way to avoid this is by preventing this situation. Since Genital Herpes is a sexually transmitted disease, steps should be taken to ensure that you don’t transmit herpes during this crucial time.

What Are Forklift Trucks?

Forklift Trucks are used in industrial settings to lift and move heavy objects. Since its development in 1920 by   transmission  company: Clark, and by hoist company: Yale and Towne Manufacturing, they have become a vital piece of machinery in warehouses across the world.

Forklift Trucks are classified into different  classes  and lift codes:

  • Class 1 include Electric Motor Riders. Their lift codes include: Number 4, which is a three-wheeled, sit-down, counterbalanced truck. Number 5, which is a cushioned, solid tire, sit-down, counterbalanced truck. And, Number 6, which is a pneumatic tire, sit-down, counterbalanced truck.
  • Class 3 include Electric Motor Walkies. Their lift codes include: Number 2, which is a low-lift pallet truck. Number 5, which is a high reach lift type. And, Number 7, which is a high lift, counterbalanced truck.
  • Class 4 include: Internal Combustion Engine Riders. Their lift codes include: Number 3, which is a cushioned, solid tire, sit-down, counterbalanced truck.
  • Class 5 include: Internal Combustion Engine Riders. Their lift codes include: Number 4, which is a pneumatic tire, sit-down, counterbalanced truck.
  • Class 6, which is Rough Terrain. Their lift codes include: Number 1 which is classified as all types.

Besides counterbalanced, there are speciality trucks which include:

  • Articulated Counterbalance Trucks. These are Forklift Trucks which have front wheel steering and a very narrow aisle truck. These are able to offload trailers, as well as place and move loads into narrow aisle racks.
  • Guided Very Narrow Aisle Trucks. These Forklifts are rail guided. Their lift heights are 40 feet to 98 feet, non-top tied or top tied respectively. These Forklift Trucks are only able to be used on floors with a high standard of flatness.
  • Explosion Proof Trucks. These are for use in the operation of the movement of potentially explosive materials.

In the interest of saving man-power and the wages associated with it, some companies now employ the use of these. These trucks are often computer operated and are becoming more and more available by manufacturers around the world. While they save on man-power in terms of having someone to operate the machine by standing behind or sitting in it, there is still the wages of the computer operator to consider when deciding if Forklifts actually save a company man-power or wages at all.

How to Conduct a Viral Marketing Campaign?

Have you ever heard the saying, ‘the news spread like fire?’ Well, you must have, since this is a very common phrase in English language, and one often uses it to describe the very nature of man that inherently makes him a very capable messenger.

What is meant by this theory is that man, no matter how primitive or civilized, will always stick to his basic games in this world. He would always keep not ‘an’ but both eyes out to see what others are doing. Every man has a nose, which is too long so that he knows not what to do with it, and eventually he sticks it into other people’s business. And under this very nose is his mouth. And thus he can babble and spread around what he learns.

But if you had always cursed people like your next-door-neighbors who made it a habitual routine to crane up their neck and babble all over about your life, it is time to change your approach a little bit. People like your neighbors are actually the ones who can help you to make your business grow!

How, you ask? Well, viral marketing strategy is the answer. This way, you can post all your content in the sites and provide you link in there as well so that the online visitors can follow you to the table conference table where you can cement your deals. But for that, you have to make sure that the customers make a bee for your amber-thick, caramelized and lip smacking opportunities. For this, you will need to use the most effective strategies. Here are some that you can use:

o The first hit mantra would be ‘free’. Relax, we are not talking about a massive drawback in bank balance. You do not have to sell off everything you own to give away stuff for free. After all, we have not opened up a charity here, have we? Just let some software, games, ebooks, email account services or screen savers be available for free. This will hardly affect you, and the return will be high. People love to get things for free. When they see that you are offering them things at no cost, they will rely on you. And this will establish a connection between you and your customers which will eventually pay off to your advantage.

o The second mantra is to be creative. No, you do not have to be a Pulitzer Prize winner to pull this one off. You just have to keep everything simple. Provide all the information, keep your article compact and short so that it is easy to remember. The transmission should not be corrupted. Make the message as comprehensive and attractive as you can. For example: “Check out our new free ebooks. Turn the pages…and pay nothing…all at name of yoursite (dot)com.

o No matter whatever your web posts are, be it mail, blogs or articles, make sure that the transmission is very easy and uncomplicated. Use all the technical support that you can to make sure that your logistics can survive. You must make all the effort to convey the image and purpose of your website properly and satisfactorily.

o Another way to get famous is by getting famous. In order to assure that people read your web content, you have to write and post your work anywhere and where ever in the net world. If you write articles for other sites or publications, make sure that you slip in the name of your site there as well.

This way, yow will be able to advertise for your site and this will enhance your exposure. The key mantra to success in business enterprise is a grand exposure. You have to expose yourself to your customers, and offer them the information that they would need to rely on you. This way, you will be able to build a deeper bond with them, and this will create a positive buzz about your work. And soon more deals will zoom into your workplace!

The True Difference Between Motorcycle Oil and Automotive Oil

To some people, changing the oil in your car is just like changing the oil in your motorcycle. Just drain out the old oil, install a new oil filter, and pour in the desired amount of new oil and your done. So when it comes time to change your motorcycle oil, why can’t you use the same oil that you use in your car? Motorcycle oil and automotive oil look and feel the same so how could there be a difference between the two?

Automotive oil looks pretty enticing at $3 a quart but any experienced motorcycle rider knows that using automotive oil in motorcycles causes serious damage. In automotive vehicles, the engine is always separate from the clutch and   transmission  so they have separate oils for each. In automotive engine oil, there is more of what is called “friction modifiers” to help lessen the amount of friction on engine components and improve fuel economy. Of course, improving fuel economy has always been the main goal of the automotive industry making friction modifiers a necessity for all automotive oils.

These friction modifiers that are added to automotive oils are what cause serious damages when used in motorcycles. The friction modifiers clog the clutch plates in a motorcycle’s  transmission  causing serious clutch slippage and disabling the motorcycle. You see, for motorcycles to be as compact as they are, they have to combine their engine and  transmission  into one casing. This means that everything is lubricated by only one type of oil including the valves, piston,  transmission , and clutch.

Motorcycles require very little and/or no friction modifiers to help improve clutch friction and to prevent clutch slippage. But to make up for this lack of friction modifiers, motorcycle oils use higher levels of anti-wear additives such as ZDDP, also known as phosphorous, to limit engine friction and wear. Since motorcycle oil has extra anti-wear additives and is lubricating so much more than automotive oil, you can expect to pay anywhere from $9 to $15 a quart.

To some people, both oils look and feel the same but now you know the facts of each. So the next time that you decide to change your motorcycle oil, go straight to your local motorcycle dealer and buy only high quality motorcycle oil designed specifically for the type of motorcycle you own. Make sure that you change your oil periodically to keep it fresh and clean to ensure a long life for your engine,  transmission , and clutch.

How to Have Clutch Power

The key to your motocross bike’s performance lies in the clutch. You may be an ace as a motocross player but if your clutch is not doing its part, you may find your engine difficult to control. The following are some tips for an excellent clutch.

First of all, take out those Factory Clutch Springs and substitute them with stiffer ones. Bike factories never use maximum performance parts when assembling the clutch. High performance parts usually cost more money than those being used by factories. But keep in mind that you don’t have to change every spring. Usually two or three will do but you can experiment on what works for you.

Do not neglect your   transmission  oil. It’s not the same as cars and trucks wherein you can change the oil once a year only. Ideally, your oil must be replaced every two or three races. It may sound too much for you, but changing the oil is cheaper than a  transmission  overhaul. Remember that the crud that you pick up on the track accumulates and will put early stress on your clutch plates.

Always carry extra shims for emergencies. You’ll never know when you’re going to need these things. It might happen in the middle of a race and you won’t be able to remedy the situation. You can simply insert the right washer under the bolt. The added thickness will preload your springs and take away that spongy feeling in your clutch.

You can top off your  transmission  to the proper level with Automatic  Transmission  Fluid, that is, if it is GM compatible. But don’t use a Ford type fluid. The difference between the two is GM fluid grips better than a Ford fluid which is slick as molasses.

Never use factory-installed aluminum clutch plates. These plates are suitable only for regular use but not tough enough for extended motocross use. They don’t hold up as well as steel plates which are heavier but more durable. There are two drawbacks for aluminum plates. One, they wear more quickly than steel leaving metallic deposits in the oil, thus, hastening mechanical wear. Two, aluminum warps easily when subjected to extreme heat generated in motocross.

Aging plates build up a glaze layer on the surface which makes them slip more noticeably. When this slippage is noticed, take out your fiber clutch plates and sand the surface to remove the slippery glaze. Reinstall after cleaning.

Make sure your clutch lever isn’t set too tight. Set it so that a quarter can slide between the lever perch and the lever without catching the clutch cable.

Choosing the Right Dental Assistant School

Which School Should You Enroll Yourself?

The dental assistant school you choose to enroll in is one necessary factor in your success as an assistant. You must choose among these schools the one approved and accredited by the Commission on Dental Accreditation of the American Dental Association (ADA). Certification for dental assistant is only granted by the Dental Assisting National Board (DANB) to those who graduated from accredited schools. Such certification is very important as some states require license of assistants in allowing them to work in the field. Most of the employers also have higher regards on those who graduated from accredited programs because they are assured that the assistants they hire would be competent enough and skillful.

Enrollment Prerequisites

Just like other degree programs or courses, a high school diploma or an equivalent is usually required in enrolling to school. Some schools aside from the high school diploma or its equivalent, also requires some subjects or courses in science (biology and chemistry in particular), health, computer and office or management.

Classes and Programs

There are programs available online. However, you must make it sure that its mother school is accredited by the Commission on Dental Accreditation of the ADA. Aside from the accreditation you must also check if there is a balance between lecture classes and laboratory or hands-on trainings. Practical experiences must always be included in the program. Usually, the assistant programs consist classes on dental anatomy and basic anatomy, dental procedures and theory, nutrition and preventive dentistry, disease   transmission  and pathology, pharmacology and radiology, names of instruments and use of equipment, communication and patient interaction, medical office administration and record keeping.

Evaluating School for Assistants

The student aspiring to be an assistant must consider if the school provides the appropriate training for the different roles of an assistant. The program of the school must provide comprehensive trainings regarding the important roles of a dental assistant. Aside from the trainings the students must also give proper education and preparation for the students for the Dental Assisting National Board’s CDA examination. Reviews must be conducted by the school among their students. Also, the school’s location is very important to consider. The student must have initially planned which state he or she would like to work in so that the standards of the school meet the state’s standards for dental assistants allowed to work in the field. The student-teacher ratio must also be considered. Proper supervisions must be given to each student not just during laboratory or practical experiences but also during the classes on theories. Furthermore, check whether financial aids are available such as student loans, scholarships and grants. The tuition fees for dental courses in different schools are to be noted. Check also the success of the graduates of the school. Take note of how many were granted the certification of being an assistant and how many among those who went into internships got jobs compared to the number of graduates. The percentage has to be relatively high to be able to say that the said dental assistant school will provide you the proper training and lead you to excellence and success in the field.