Dirofilariasis – The Deadly Heartworm in Dogs

When a dog is suffering from heartworm, it means that they are infected with a roundworm commonly known as heart worm. The organism is actually Dirofilaria immitis, a parasite. This worm is transmitted by mosquitoes and will infect your dog’s blood, heart and lungs. Left untreated, the disease is fatal.

Causes

Heartworms are spread through mosquitos that carry the infective heartworm larvae. The larvae enter the dog’s body through the mosquito bite wound and travel through the dog’s body to the heart. This process will take approximately six months.

Once the heartworms are living inside your dog, the adults will release immature heartworms (microfilariae) into the bloodstream of the dog. When a mosquito bites an infected dog, it will become a carrier of these microfilariae and infect the next dog it bites.

If a dog lives in a high risk area for heartworm, without preventative treatment it will almost certainly contract heartworm disease. Although heartworm is mainly endemic in tropical and subtropical areas, it is not limited to these areas. Heartworm has been identified in all 50 US states and is found worldwide.

Symptoms of Heartworm

Heartworm disease can be diagnosed by your veterinarian through a blood test. There are three classes of heartworm, and the symptoms vary from no visible symptoms to extreme ill health. It is difficult for a dog owner to identify heartworm in their pet.

The symptoms of heartworm include but are not limited to an occasional or more regular coughing, reduced canine activity or an intolerance to exercise, anaemia, fainting, chronic heart failure, labored breathing and high blood pressure.

The severity of heartworm disease will depend on the severity of the infestation, the duration of the disease and the response of the dog. All dogs are different in the way their bodies cope with the heartworm infestation.

Diagnosis

If your vet suspects your dog may have heartworm they can conduct a blood test, carry out an electrocardiograph (can reveal heart rhythm disturbances), a urine analysis or x-rays. They are looking for damage to or enlargement of the heart and associated arteries.

Treatment

Initially your dog will be hospitalized, and receive a dose of adulticide which will kill the adult heartworms. Depending on the severity of the infestation your dog may need to be hospitalized for a longer period. In some cases surgery may also be required to remove adult worms from the heart and jugular vein.

After the adult worms have been killed, treatment must be ongoing with a monthly dose of prophylaxis to kill eggs and larvae which have not been killed by adulticide.

You should be aware that the treatment for heartworm can be deadly. Even mild to moderate cases of heartworm will have a considerable impact on your dog. It is not an easy treatment for your dog, and should not be considered light heartedly.

Prevention

Heartworm disease is completely preventable through a regular dose of prophylaxis which is a preventative heartworm medication. Your veterinarian will be able to assist you with the appropriate medication and dosage to suit your dog.

If your dog does contract heartworm and has been successfully treated, you should take care to administer the monthly dose of prophylaxis as advised by your vet – reinfestation can easily occur especially in high risk areas.

Gamble Or Abstain!

ABSTINENCE [The sure way]

There has been great awareness campaign about HIV/AIDS for the past decades and It is believed that there is nothing really new about this particular ailment, the general Public is not aware of. Part of this awareness campaign is the preventive aspect of acquiring the Virus. Though this article is centered on abstinence, it is in no way in disagreement with the other ways of protection against   transmission  of the virus.

“Abstinence, being faithful, correct and consistent condom use are the only ways to successfully reach everyone when discussing HIV prevention. I believe that the abstinence message alone does not solve the AIDS epidemic”- a quote from the American actress, Ashley Judd. This true statement of fact is in total agreement to the former first lady to the United states and as well the 2008 Democratic party presidential aspirant, Hilary Clinton who said “there is a great deal of political pressure to only talk about abstinence and to deny support for condoms and education for using them. This policy will lead to the unnecessary deaths of many people”. This is also correct. You cannot live the lives of others or monitor their activities and actions. Preaching abstinence alone and preventing the other means of protection is far from the solution. But in as much as the use of condoms and other safe practices are not condemned, total abstinence is worth the greatest attention because it is a 100% sure way of prevention, therefore preaching it is aimed at encouraging those who are doing their best possible to abstain, and as well put more light on reasons to abstain for those who believe in it, but do not practice it.. Before we hit the nail on the head, let’s go through the ways of  transmission  of the virus from an infected person to one that is not infected.

 Transmission  occurs when secretions of affected persons come in contact with tissues such as those lining the vagina, anal area, mouth or eyes ( the mucus membranes) or with a break in the skin as such for a cut or puncture by a needles. These ways are possible via sexual contact, sharing of needles, and  transmission  from infected mothers to their new born during pregnancy, labor or breastfeeding. It could also be transmitted via blood transfusion. These following ways could be classified into two major classes. The controllable or avoidable ways of  transmission  and the Uncontrollable means of  transmission . The controllable or avoidable means are these methods of contacting the virus which can be controlled or totally avoided by the person involved. Note that this definition is specific to the person who is at risk. The uncontrollable means are the ones which cannot be controlled by the affected persons. Infected new born fall into the uncontrollable means as they cannot do anything about the situation. They fall out to be unfortunate victims and to a large extent, blood transfusion can be in this category. For this category or class of  transmission , abstinence cannot be preached since it was not the fault or carelessness of the affected persons.

In the controllable category, using of new needles each time you want to take drugs and dumping the old ones after using them; is a direct formula to preventing HIV infection via injection of needles. This reduces the risk to about 99.99%. If a person not only shares needles but uses them just once, he stands a great chance to be risk free, giving the control method a good efficacy. Nevertheless, 0.0001% is still a probability and we will see how probability counts in reality. Therefore, in order to really understand what abstinence is, focus would be placed on the two major controllable means (injection and sex), especially on sex.

In sexual means of  transmission , the break in condom cannot be totally avoided in a given formula. No matter the quality of condom, there are still chances it could break during sex. Some arguments stress out that the virus is smaller than the fiber of the condom and it can still get through, especially when the male genital is very huge, stretching the condom extremely well. Therefore, it gives the probability of 85%- 95% of HIV prevention for the males and 95%- 99% for the females if used correctly.

On the contrary, Abstinence is a straight 100% preventive measure; absolutely efficient and no slight chance no matter how negligible it may be. It is safer and easier to adopt. Remember that abstinence does not mean been a virgin forever but avoidance of more than one partner, and more concretely avoidance of pre- marital and extra- marital sex. Probability is the chance of an event to occur and no matter how insignificant the value is; it does not prevent the situation involved from existing. It is believed that the cru de chat syndrome (sterile females with immature sex organs resulting from the loss or deletion of a significant portion of the genetic material) occurs once in 5000 births. This does not mean cru de chat syndrome does not exist and you can understand that, a parent who has a sick child with such a syndrome would not be ready to listen to statistics from any doctor, because the reality still remains; his/her child is suffering from it irrespective of the slim chance of occurrence.

On a general note, abstinence is the sure way to avoid the controllable means of acquiring the virus. And from the following illustration below, we can justify this simple fact. The table below shows the estimated number of cases of AIDS amongst people by  transmission  category in the 50 states of the United States of America as of 2007.

Male- to- male sexual contact — 487,695

Injection drug use — 255,859

Male- to male sexual contact with injection – 71,242

High risk heterosexual contact – 176,157

Others (Hemophilia, blood transfusion, prenatal exposure and risk not reported or Identified) – 18,266.

[taken from http://www.cdc.gov/hiv/topics/surveillance/basic.htm ].

The first four ways are controllable means in which aside drug use, the rest are by sexual contact. These four means account for 990,953 cases out of 1,009,219, which is about 98.2% of all cases. Meanwhile 735,094 out of 1,009,219 cases are due to sexual  transmission  alone; accounting for 72.8% of all cases. Only about 1.8% of the total incidences are due to uncontrollable  transmission .

On normal grounds, occurrence of a situation caused by uncontrollable factors should be more, when compared to the same situation caused by the controllable ones. Another insight we can get from this statistic which is an extension of the first statement is; despite the control measures and protective means available, the controlled means are still far greater in occurrence than the uncontrolled ones. This justifies the fact that the only way this can be drastically reduced is through abstinence.

A teenage girl once said, “I have created an appetite for sex and I do not think I can stop it now”. The Human nature is such that, if you allow it take part in a pleasurable event more than once and continuously, it begins to yearn after that event due to its increased appetite. Charles DIkkens, a popular English Novelist of the Victoria era quotes “subdue your appetite, my dears and you’ve conquered human nature”. Human natured is meant to be conquered and in this way we can control ourselves- hence show great abstaining ability. If we do not conquer our human nature and allow our various tastes or appetite to explode, I think mutualism would not be a reality and a ‘jungle Life” scenario would be the possible resultant situation. If we can control our appetite or taste to any or all of the following; fashion, food, clothes, fame, drinks, sports est. why not sex? Is it normal to randomly have sex with different partners? As long as the Human nature could be stretched, it could also be tamed and the only way to do this is by abstinence.

Mr Anton Zakovich, a Russian economic lecturer said “Pre- marital sex is just like tasting soup while still cooking it. You taste the soup to know how spicy it is before it is finally cooked”. What if peradventure it burnt your tongue or distorts your taste buds? Would you be able to enjoy the soup later. Sex before marriage should not be compared to tasting soup, you taste the soup to know the quality for improvements by adding more ingredients if need be. But what sort of improvement do you need in pre- marital sex that you would not still accomplish when married. Marriage is a Life time commitment and the more the improvement in all factors at stake, the better the intimacy and possibility of becoming one. As for extra marital relationships, they are not only medically wrong, but as well morally and socially bad. If you think this Idea is too conservative, then think and take a look at the exposed extra-marital affairs of some celebrities such as Tiger Woods and John Terry, in relation to the general public and their fans. Then statistics will make you understand the ‘social- contempt’, extramarital affairs can stimulate.

Abstinence is not practiced, it is perfected. As we all have the ability to abstain. Dennis Wolfberg, the late American stand up comedian and actor, once quoted to confirm this statement. “I didn’t practice abstinence, I perfected it”. The major reason why abstinence becomes a difficulty is the fact that we kill this potential ability in us. And in some cases, it goes so bad to the extreme- addiction. The only way to sexual addiction is sexual exposure from an early age leading to continuous sexual activities as the child grows to his or her late teens and even older. This is also applicable to drug addiction.

According to SADD’s MISSION statistics of the year 2005, taken from around the entire states of the United States of America, 46.8% of all high school students report that they have sexual intercourse and 6.2% of high school students have had sexual intercourse for the first time before the age 13. Not only that, 14.3% of high school students nationwide have had sexual intercourse with four or more persons during their lives.

Talking about drugs, 9.9% of youth ages 12- 17 were illicit drug users; 6.8% use marijuana, 3.3% used prescription drugs for non medical uses, 1.2% used inhalants, 0.8% used hallucinogens and 0.6% used cocaine. Also, half of teens (50%) have tried an illicit drug by the time they finished high school. Though these statistics may have been taken years back, but surely it is appalling information and most probably parents and all stake holders involved (especially the school guidance and other parties) should put more careful attention to their children.

The best part of this statistics is the fact that youths ages 12- 17 who believed their parents would strongly disapprove of their using a particular substance were less likely to use that substance than were youths who believed their parents would somewhat disapprove of neither approve nor disapprove. SO, this have to do with home/ parental training which would not be discussed as it is outside the scope of the subject matter.

The point is, children of this present generation are sexually very active even from a very early age. And for this reason, they need adequate sex education with the sermon preached, not from a formal approach but rather done in adequate love, care and full attention. Taking advantage of the relationship to a great deal of understanding between the parent and the child would serve as the tool to achieving it. If this system is practiced there would definitely be an increase in the percentage of children who would adopt abstinence.

Now in general, consider this scenario. You want to go to the shopping mall by foot which is 5km from your home but there are 3 short routes about 2.5km each in which there is the probability of coming across wild dogs in one, been attacked by hoodlums in the other and as for the last- been hit by a car due to its busy nature (though, these incidences occur once in 2 months, but they continuously happen in that rate of occurrence). Would you still take the risk to follow one of the short routes? Some of us, knowing fully well the nature of events still follow one of these short routes and if unfortunate, get bitten by a dog (or some dogs) or been attacked or hit by a car. That is what majority of us do. The shorter time of going to the mall and back home should not be more of a priority to your Life and health. This is exactly the circumstance we face in Abstinence. It is a 100% route of safety but we prefer short- lived pleasure, which we would still enjoy later in Life or are enjoying with a legal partner.

All said and done, other preventive measures are never absolute and still give room or chances for the spread of the Virus to occur. If we can abstain why not give ourselves the 100% chance to be risk free from contracting the virus? There is great gain and full advantage when you abstain be it moral, mental, religious, and of course social. It also adds fun and spice to your marriage Life in the nearest future if you are single. Usually, you enjoy to the fullest, what you have been anticipating for a long time. Some people taste the soup two, three, four times and end up decreasing or even losing their appetite, therefore not enjoying the soup later when it is done. But when the soup is tabled for you to eat- fresh and new, you take it as though you could finish a drum of it and still ask for more.

On a final note, in as much as awareness on all the protective systems of avoiding the virus  transmission  is important; it is very necessary to stress the fact that Abstinence is the best and sure way and hence treat the best as the best. Do not gamble; abstain to sustain your Life.

What is a Line Cook and the Responsibilities That Come With the Job?

Fire, a term used to get ready to starting an order that the waiter just placed in. The guest have probably been waiting for at least ten minutes from the time that they first sat down at their table, and are now waiting for that meal that the kitchen staff will prepare.

The front line in the kitchen is where most of the food is fired. It is divided and usually consists of a saute section, a broiler, a grill, a deep fryer, a salamander, cold reach-ins or drawers, and hot water wells. One that works on this line, which may consist of 2 to 3 even 4, depending on the size of the restaurant or the menu, are called line cooks. Sometimes the chef likes to get in on the action.

As a line cook you need to be prepared, you need to know the menu, all the different recipes, have all your tools on hand, have all your ingredients in the menu on the line, and of course you need the skills of cooking.

Being mentally prepared, by far, is one of the most important ingredient a line cook should have. One must be able to concentrate on the task at hand over all the hustle and bustle in the kitchen. the chef would be calling out orders, waitstaff are asking all kinds of questions, you maybe working on maybe three or more things at once, and timing is crucial, everyone on the line must be in sync. With all these distractions one must keep his composure. Getting stressed, or angry doesn’t help but it does happen. Waitstaff asking you how much longer, chef telling you to fire one more thing from another order, your saute cook is a little behind, it’s been almost an hour since this chaotic mess started and your wondering when will it end. Temperatures rise on the front line and I don’t mean the burners.

After all is said and done, there are no complaints, no one waiting long for their meal, guests are happy, a few compliments, waitstaff got their tips, line cooks getting ready to clean the line, and making a list of the prep that needs to be done when they return the next day. Everyone gets a pat on the back, job well done. That is the reward and one of the goals of the front line cook.

Guest satisfaction is the priority of the front line cook. The quality of the meal is your number one concern along with presentation. All the ingredients must be fresh, every cook must be on the same page as far as the recipes go, there needs to be consistency making sure that what you cooked today, will taste the same tomorrow or next week. This is what brings in repeat customers, this is what a restaurant focuses on and depends on. The line cook along side the rest of the kitchen staff strive to do this daily. As a line cook you need to take pride in your job, because if you do, that pride will certainly reflect on the meals you prepare.

Japan’s Big Three’s Models Named Best Deals

Car buyers are always in the lookout for the car offering the best value for their money. Different firms have been guiding prospective car buyers on how to choose the vehicle the suits their needs best. From performance to fuel economy to safety, all bases should be covered in choosing a vehicle.

IntelliChoice, one of the leading sources of pertinent information to car buyers, recently announced their “Best Deals” list. The list contains what the online outfit thinks is the best vehicle in different classes. For the month of April, IntelliChoice announced their “Best Deals” and this has been done coinciding with the ongoing New York International Auto Show (NYIAS) in the Big Apple.

This month’s list includes several models from Japan’s three biggest car manufacturers. These vehicles are seen as the measuring stick for future production vehicles unveiled and showcased at the New York Auto Show. James Bell, the publisher of IntelliChoice.com, has this to say with regards to the list and the vehicles showcased at the event: “Even more than recent auto shows, the New York show offered a look at some very compelling future competition to many of the mainstays on our monthly ‘Best Deals’ list.”

The Honda Civic hybrid is rated as the best deal for the Compact Car over $16,000 class by IntelliChoice.com. For the Compact Car under $16,000 class, the best deal is touted to be the Honda Civic DX with an automatic transmission.

Aside from these two models, another Honda produced vehicle was named as a best deal in its class – the Honda Civic Si. The said model is named as the best deal in the Base Sport Car class. The Honda Odyssey is once again named as the best deal for the Minivan class. The Honda Odyssey has been dominating that class in recent history but will face strong competition in the form of the Ford Flex recently unveiled at the New York International Auto Show.

A Nissan model is also named as one of the best deals for the month of April. The Nissan Frontier King Cab XE 2WD with a manual transmission is named as the best deal for the Compact Pickup Truck 2WD class. The King Cab is the first crew cab body style compact pickup truck in North America and since its inception in the U.S. auto market has been popular among car buyers. With its trademark dependability, the Nissan Frontier is not a surprise choice as the best deal for its class. Its high performance construction and components such as the Nissan spark plug wires are one of the reasons why the Frontier sits at the top of its class.

Toyota, the surging Japanese car manufacturer, also landed several of its models at the “Best Deals” list. The popular Toyota Prius is named as the best deal for the Midsize Car under $21,000 while the Prius Touring is named as the best deal for the Midsize Car over $21,000 class.

For the Large Car class, IntelliChoice picked the Toyota Avalon Touring as the best deal for consumers. The Toyota Highlander Hybrid with a third row seating and 2WD configuration is named as the best deal for the Midsize Crossover class. The Toyota Matrix Standard with manual transmission is also named as the best deal for the Small Wagon class.

For the Compact Pickup Truck 4WD class, IntelliChoice picked the Toyota Tacoma Regular Cab 4WD as the best deal. The Toyota Tundra Regular Cab V6 2WD Short Bed is named as the best deal for the Full-Size Pickup Truck 2WD 1/2 Ton class.

The “Worthy” Poor VS The “Unworthy” Poor

In American Society, we have divided the poor into two classes, the “worthy” poor and the “unworthy” poor. The “worthy” poor are those we feel are worth being on state/federal aid and do not complain about assisting. The “unworthy” poor are those are receive aid as well but for some reason society feels they could take care of themselves and not depend on the aid.

Society feels that those in the “unworthy” class are capable of providing for themselves financially. The reason being that most of the people who fall into this class are younger then the people who fall into the “worthy” class. Many who fall into the “worthy class” are the elderly who are beyond working age, and find it hard to support their selves without some form of a fixed income.

Although the majority of the “worthy” class is made up of the elderly, there are certain situations where the “worthy” class also includes some of a younger generation. Many of those come from the deeply impoverished corners of the United States Society. Many don’t have a chance of surviving and living a better life then they are being given unless the someone, whether it be the government or a small organization, step up and find some way to show them the way to improve themselves.

There are a few such organizations and federal programs in place already, but there are not nearly enough to tackle the large need that we have for the issue. Many people feel that even though they fall into the “worthy” category, they are still not worth wasting time, resources, and money on to educate towards a better life. Many look down on those who need aid regardless of the situation and feel the same about them. They think that they are children, and as they grow they will learn and they will make something better of themselves. Unfortunately, this is not true. As they grow up in a poverished lifestyle they will learn from what they are surrounded with. They will grow up and realize it isn’t so bad to be where they are, because they have not had anyone show them that there is a different way in life.

As American’s, we are a large extended family. Everyone is supposed to look out for their family and protect them. I do not know why no one is protecting the children of these “unworthy” groups and showing them the way to better themselves and enrich their lives. It is going to take more then giving their family a few hundred dollars a month in food stamps and other aid to teach these children how to succeed in life. It is going to take educating them. Not only do these children need to be shown the way, but their parents/parent as well need to be educated on how to enrich not only their lives but their children’s lives as well. It is a two step process, and it is time as a society we step up and start making it a reality instead of a vision. With a little hard work I honestly believe that poverty in the US could be helped dramatically by just a few nice neighbors holding out their hands and showing that they are willing to assist.

Deadly Staph – Tips for the Prevention of Staph Infections

Over the past few years some dangerous Staph bacteria have become resistant to antibiotics. Only recently has the news media focused on this serious new health problem, which is of urgent concern to our schools. These killer bacteria, called methicillin resistant Staphylococcus aureus or “MRSA”, have recently caused panic in schools in the USA. Some infected students have become seriously ill and some have died after these antibiotic resistant bacteria invaded their blood stream. Most Staph bacteria only causes minor skin infections and are treated with antibiotics. Serious and deadly infections however, develop when antibiotic resistant bacteria (MRSA) is involved. The best methods for prevention of all types of Staph infections involve general cleaning strategies which can be incorporated into the routine cleaning practices at all schools. Here are some tips for limiting the possibility of Staph bacteria infecting your students:

1.) Establish a daily and routine environmental cleaning schedule for your school restrooms and dining areas. The cleaning staff should be trained and monitored to be sure they understand and practice thorough and effective cleaning procedures. Your local health department can provide advice on procedures.

2.) Use germicidal products or a solution of 1 part chlorine bleach and 9 part water to clean any surface that is subject to frequent touching by students, including light switches, doorknobs, faucet handles, hand rails and all restroom fixtures. Use soap and water at a minimum, preferably an all-purpose cleaner, for a daily cleaning of all other floors and surfaces.

3.) Install automatic soap dispensers, automatic hand dryers and automatic paper towel dispensers. These touch-free automatic dispensers will reduce student’s exposure to appliances that are frequently the source of hand transmitted bacteria. like Staph. If your school still utilizes the old manual hands-on dispensers it will be nearly impossible to clean them frequently enough to eliminate the spread of bacteria.

4.) Immediately clean up any surface that has a visible body fluid contamination such as blood, urine or other body fluid.

5.) Make sure automatic soap dispensers and automatic paper towel dispensers are filled with product at all times. This should be part of the cleaning personnel daily routine. Refill the dispensers daily.

6.) Encourage good hygiene. Students should be cautioned against sharing water bottles and personal items, encourages to shower after gym classes and other physical activities.

7.) Require that students cover cuts, abrasions and lesions with a proper dressing (bandage) until healed. Athletics staff should monitor this closely among their athletes.

8.) Clean all items used in athletic activities with an all-purpose cleaner and wash uniforms after each use.

9.) Publish, articulate and post reminders to staff and employees the importance of frequent hand washing with soap and water or the use of germicidal hand gels. Your schools restrooms and cafeteria should have warning signs posted in highly visible areas reminding everyone that hand washing is a requirement of your facility and is everyone’s responsibility.

Following these simple cleaning routines will greatly reduce you schools risk of bacterial infections of all types, including Staph and viruses, such as the flu, and the common cold.

The Importance of Food in Our Life

Food is the basic necessity for all of us and we all earn money to get this basic necessity. We need to eat 3 meals a day to keep our body running so that we can manage our daily functions. Many of us ” Eat food to live” while there are others who “Live to eat food”. In fact, nutrition assumes a special importance in each and everyone’s life.

Types of Foodstuff

The food is normally divided into two main categories given below:-

1- Vegetarian food- These include stuffs like milk, fruits and vegetables. These are those stuff that are obtained from plants and trees.

2- Non- Vegetarian food- These include stuffs like meat and meat products, chicken, turkey, fish, squid etc. Non vegetarian food are generally obtained by killing animals.

Nutrition from Foodstuff

Nutrition from food is necessary and without this daily dose of nutrition animals may not survive for long. It is important to support life as nourishment obtained helps the cells present in our body to carry out its routine functions. Different stuffs provide different levels of nutrition. The nutrients are divided into six classes which are given below:-

1- Carbohydrates- These provide energy to the body and are found in items like rice, bread and other grain products.

2- Fats- It consists of a group of compounds that are generally insoluble in water. These are found in items like butter, ghee, fish oil, lard etc. Fats are stored in the human body for use at a later use for energy.

3- Minerals- These are needed for the maintenance of proper functions in the body like the transport of oxygen throughout the body, stimulating growth, normalizing the nervous system etc. Minerals can be found from a variety of food items such as meat, cereals including cereal products such as bread, fish, milk and dairy foods.

4- Protein- These are important components of muscles, skin and hair. Proteins are helpful in creation of various enzymes in the body that control various important functions. Major sources of protein include milk, meat, fish, egg, and vegetables.

5- Vitamins- They are an essential component of animal body required for good health. It is organic compound required as a nutrient. Good sources of vitamins are fruits, vegetables, cereals, milk and eggs.

6- Water- It is popularly known as the”elixir of life”. The human body comprises of 55-78 % of water. It is required for the essential functioning of the various important parts of the human body.

Thus, these points given above reflect the importance of food and nutrients in our diet. As long as a human is alive, he needs water and foods in the required quantity.

The Motorcycle

A motorcycle is a single-track, engine-powered, two-wheeled motor vehicle. It varies considerably, depending on the purpose for which it is designed, such as sports and racing, long distance travel or off-road conditions. The first motorcycle was invented by Gottlieb Daimler and Wilhelm Maybach in Germany, in 1885. This first petroleum fueled motorcycle was named after Petroleum Reitwagen. It was designed as an expedient test bed for their new engines. This motorcycle was not practical as a safety bicycle, because its steering was zero degrees axis angle with no fork offset.

The construction of a motorcycle should be done in a way that can maximize performance for the lowest cost. Motorcycles now are usually made of telescopic forks, steel, aluminum frames which hold the front wheels and disc brakes. Power engines typically consist of four cylinders and, less commonly, up to eight cylinders, coupled with a manual five or six speed sequential transmission, which drives the swing arm mounted rear wheel by a chain, driveshaft or belt. You can see the speed meter in the middle of the steering and the main headlight in front of motorcycle. The engine is fixed between both wheels and below the seat of the driver. The silencer is usually fixed on right side. There are three types of motorcycles, dual, street and off-road purpose. Dual-purpose bikes are made to go off road and are comfortable on the street as well. Street bikes are sports bikes and scooter. Off-road motorcycles are used in motor-cross and dirt-oriented racing classes.

Motorcycles are one of the most affordable vehicles for transportation all over the world. There are around two-hundred million motorcycles worldwide, and most are used in Asia and the United States. As fuel prices increasing day-by-day, car owners are now moving themselves to use motorcycles instead, because they consume less fuel as compared to heavy vehicles. Motorcycles are usually two-seated vehicles, with one driver and one person sitting behind the driver. Honda, Yamaha, Kawasaki and Bajaj are some of the most famous companies. Motorcycles are available in different powers, 70cc to 250cc. The 125cc to 250cc motorcycles are considered as heavy bikes, which commonly use two silencers, while others have only one.

Motorcycle fuel consumption varies in different models. Which power engine is used on a bike also depends on engine displacement and riding style. In developing countries, 100cc to 200cc motorcycles show a good fuel economy. An Indian company, Bajaj, offers a superior fuel economy model, the XCD125, which consumes one liter of petrol for 100Km. Now, companies have also introduced electric motorcycles, which are nearly silent, zero emission, electric-motor-driven vehicles. However, this technology is under development, because electric motorcycles have less mileage and require a high cost on batteries.

One must use some safety precautions while riding a motorcycle, because it has a high rate of accidents, as compared to automobiles. The Fatality Analysis Reporting System showed that motorcycles are involved in dangerous accidents four times more often than cars and other heavy vehicles. Proper training must be gained before riding any kind of motorcycle. Every country should create a campaign to raise awareness about motorcycle accidents. In South Africa, the Think Bike Campaign has increased motorcycle safety and the awareness of motorcycle handling on the roads.

Video Screen Splitter: Transmission of Signals From Multiple Sources to a Single Destination

A Video Screen Splitter is a device which is used to relay images from multiple sources simultaneously on a single display device. Alternatively known as a distribution amplifier, this device transmits images without data loss and it appears as though the source is directly connected to the display. Consisting of two units, a local transmitter placed next to the source and a receiver placed next to the display, this device has the capability of splitting and boosting the signals. Available in 2, 4, 8 and 16 orts, they can also be cascaded or daisy chained together to achieve a greater configuration. Amongst the various models of the screen splitter available in the market, the most common ones are the DVI Splitter, the VGA Audio video splitter, VGA Video, S-Video, Component Video, HDMI Video and Composite Video splitter. All these models are classified on the basis of the video signals that they relay.

Some key features common to all these models are easy installation, plug and play functionality, no requirement of additional software or device drivers and long distance transmission of the video signals while maintaining signal integrity. While the DVI and HDMI splitter are highly demanded models, the most basic one is the VGA splitter.

On the other hand, the Quad Video Splitter is the most innovative device in the KVM industry as it simultaneously displays signals from four analog or digital sources on a single display device. This unit has numerous display modes such as the Quad mode wherein the screen is split into four fields of equal size with each field displaying content from one source respectively. The PIP mode is one in which up to three video sources is displayed as thumbnails on the right hand side of the full screen image. The dual mode allows the left halves of the full screen images from two video sources to be displayed side by side at full size and the full screen mode allows one of the four video sources to be shown at full screen size and maximum resolution.

All the different types of the Video Screen splitter are FCC and CE certified as well as RoHS compliant and allow switching between sources through front panel push buttons and RS232. High end models enable switching through IR and TCP/IP control as well. Ideal for situations where images from various sources need to be replicated on a single screen, they find usage in remote monitoring and surveillance facilities, financial, commercial, educational, government and military environments.

Activity Diagrams – Advantages, Disadvantages and Applications of Use

Activity diagrams describe the actual work flow behavior of a system in Information Technology. These diagrams are very similar to state Diagrams because activities are the actual state of doing something. These diagrams describe the actual state of activities of a system by showing all the sequence of activities performed. Also, these diagrams can show activities that are conditional or parallel.

When to Use: Activity Diagrams

Activity diagrams should be used in alignment with other modeling techniques like interaction diagrams and State diagrams. The main reason behind using these diagrams is to model the work flow behind the system being designed. these Diagrams are also useful for analyzing a use case by describing what actions need to take place and when they should occur, describing a complicated sequential algorithm and modeling applications with parallel processes.

Activity diagrams’ advantages:

  • UML modeling language included that these diagrams are normally easily comprehensible for both analysts and stakeholders.
  • In UML for the IT Business Analyst, “The activity diagram is the one most useful to the IT BA for depicting work flow [because] it is simple to understand-both for BAs and end-users.”
  • Since they are among the most user-friendly diagrams available, they are generally regarded as an essential tool in an analyst’s repertoire.
  • Additionally, as stated above, activity diagrams allow an analyst to display multiple conditions and actors within a work flow through the use of swimlanes. Swimlanes, however, are optional as a single condition or actor is normally displayed without them.

Activity diagrams’ disadvantages:

UML modeling language include that these diagrams have the potential to become overly complex because their user-friendly nature may lend itself to an all-inclusive description. In other words, since it is so simple to display the information related to the project, why not include all of it? When an analyst has a large project, creating a single, overly complex diagram can be a temptation.

However, as one author notes, “if you are using activity diagrams to define the structure of a work flow, you should not attempt to explore several levels of activity graphs down to their most ‘atomic’ level”. Instead, an analyst should try to present a new diagram for each work flow, or if more applicable, to use swimlanes to present different actors within the same work flow.

Another aspect of these diagrams is that they may not be used in lieu of a state diagram or sequence diagram because “activity diagrams do not give detail about how objects behave or how objects collaborate.” This is not a disadvantage per se, but it is important for an analyst to keep in mind when applying diagrams to their work.

In conclusion, activity diagrams are fairly easy to get the hang of, and will be useful for most projects because they plainly and moderately clearly demonstrate how things work.” Unlike many diagramming techniques, these diagrams also enable the depiction of multiple choices and actors within a work flow, and they are easy for even non-technical users to follow

Applications of activity diagram:

This diagram has been extended to specify flows among steps that transmit physical matter (e.g., gasoline) or energy (e.g., torque, pressure).

  • Additional changes allow the diagram to better support continuous behaviors and continuous data flows.
  • The UML 2 specification significantly prolonged the features and scale of activity diagrams beyond their earlier classification as a special case of state diagrams.
  • Today, activity diagrams can be thought of as flow charts for the 21st century, and UML modelers use activity diagrams to describe it.
  • Also, these diagrams are useful in following methods:
  • Business Rules
  • Functions that occur in parallel
  • Complex chain of multiple use cases
  • Software flows and logic control configurations
  • Procedures with judgment points and alternate flows
  • Single use cases