In spite of its popular name, the actual cause of ringworm is infection with fungal organisms. These infectious fungal organisms are called dermatophytes and the medical term for ringworm is dermatophytosis. Sometimes ringworm is also known as tinea. The fungal infectious organisms responsible for causing ringworm are widespread in nature and they commonly populate the soil. The only effective means of preventing the occurrence of ringworm is to maintain a good hygiene. Ringworm is very contagious and it can easily be acquired through direct contact with contaminated people, animals or objects. Regularly wash your hands after entering in contact with stray animals, as many of them are carriers of the fungi responsible for causing ringworms in humans.
Arthrospores are the main cause of ringworm in humans. Although there are lots of animals contaminated with arthrospores, they usually don't show any signs of the disease. For some reason, most animals appear to be immune to this form of fungal infection. Microsporum canis is a type of fungi that commonly infects cats. This type of fungus can be easily transmitted to other animals and to humans. It is strongly recommended to avoid physical contact with animals that show signs of disease in order to prevent contamination with infectious fungal elements. Also, if you own a dog or a cat, ensure that your pet is not contaminated with dermatophytes by paying regular visits to a veterinary.
Ringworm can affect virtually any region of the body. Hands and feet are very exposed to fungal infection and dermatophytes often infect these body parts. Although it commonly affects skin, ringworm can also affect nails and scalp. Ringworm involves inflammation, rash and swelling of the skin, scalp, soft tissue and nails. Rash is usually the first sign that indicates the presence of fungal infections. Skin lesions may also appear in later stages of the disease. If the infection spreads through the deeper layers of the skin it can cause pustules and painful nodules. A hardened crust often forms on the surface of the affected skin. Common symptoms of ringworm are persistent itching, soreness and irritation.
Ringworm of the scalp appears in the form of pustules or pus-filled reddish bumps. Foot ringworm usually affects the skin regions between the toes. Foot ringworm appears in the form of cracked, hardened skin. The affected skin also tends to exfoliate, causing itching and soreness. Ringworm of the nails is manifested by thickening and discoloration of the nails.
It is very important to see a dermatologist if you have the symptoms of ringworm. Although it may resemble a simple rash or irritation, ringworm can cause serious complications if it is not appropriately treated. The treatment for ringworm can be prescribed in the form of oral tablets or creams and ointments for external use. The medications used in the treatment for ringworm contain antifungal material and they are usually very effective in overcoming the infection. With appropriate medical treatment, ringworm can be completely cured within a week.
Guitar (violao) is considered as an instrument in many forms of music like blues, country, flamenco, rock and even pop. Acoustically playing, the guitar involves production of the tone by vibration of the string and modulation by the hollow body. Electronic manipulation can also be done on the tone using an amplifier.
Combinations of various woods, with either nylon or steel strings are used for the construction of guitars. The person who makes and repairs string instruments like guitar is called a luthier.
History and development of string instruments similar to guitar (violao) can be traced back to at least 5,000 years. In those days, when synthetic material was not available for making guitars, a guitar was defined as `a long, fretted neck, flat wooden soundboard, ribs, and a flat back instrument, most often with incurved sides`.
There are two major types of guitars:
Acoustic guitar (violao): A soundboard (present in the front of the guitar body in the form of a piece of wood) is used to produce the sound from this kind of guitars. No external arrangement or device is needed to produce sound. This makes the acoustic guitar quieter than other commonly found band or orchestra instruments and often an external amplifier is used to make the guitar sound audible and to match the sound of other band instruments. The latest range of acoustic guitars come with a host of pick-ups for amplifying and modifying the raw guitar sound.
Within the acoustic guitar type, the sub-categories include: Classical guitars; Flamenco guitars; Steel string guitars (include the flat top or `folk` guitar); Twelve string guitars; Arch-top guitars; Renaissance or Baroque guitars; Resonator, resophonic or Dobro guitars; Russian guitars; Acoustic bass guitars; Tenor guitars; Harp guitars; Extended range guitars; Guitar battente.
Electric guitars: Electric guitar bodies are solid, semi-hollow or hollow. The sound produced is little and low without amplification. An amplifier forms an integral part of electric guitars. Vibrations of steel strings converted into electric signals by electromagnetic pick-ups are fed in to an amplifier using a cable or radio transmitter. The sound is often modified either using electronic devices or through distortion of valves naturally. The pick-ups here are of two types: single line or double line, each can be either active or passive. Electric guitar sound is most commonly used in jazz, rock-n-roll and blues style of music.
Construction of the guitar (violao) is based on whether the player is left-handed or right-handed. Usually, players use their dominant hand to pluck the strings. For most of the people, it is the right hand. The other hand of the player is on the frets for depressing and gripping guitar strings.
The various major guitar components include: headstock, nut, fretboard, frets, truss rod, inlays, neck, heel or neck joint, strings, guitar body and pickups.
There are certain accessories that might be helpful while playing a guitar (violao). Accessories like: Plectrum - also called the guitar pick, is used for picking the strings. It is made of a plastic like hard material; Slides - used for creating glissando effect in blues and rock genre of music. Neck of a bottle, knife blade or round metal bar, any of these can be used as a slide; Copatasto - it is used for changing pitch of open strings.
Both Groshan Fabiola & Roberto Sedycias are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.
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