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What is Urology?

Urology is a surgical speciality that deals with the treatment of conditions involving the male and female urinary tract and the male reproductive organs.

9 Jan 2010

Ultrasound Therapeutic Applications

When used correctly with the appropriate precautions in regards to dose, ultrasound can be applied in many therapeutic situations to benefit the patient. In fact, the use of ultrasound energy as a treatment predates its use an imaging technique and continues to be used in practice today.

9 Jan 2010

What is an Ultrasound?

Ultrasonography is an ultrasound-based diagnostic medical imaging technique used to visualize various internal organs.

9 Jan 2010

Vomiting Social Implications

There is a strong psychological element to vomiting which is closely regulated by reflexes in the brain. This means that there is a social aspect to vomiting, with even just the smell, sight or thought of someone vomiting often triggering a response that, in turn, leads to that individual vomiting.

9 Jan 2010

Vomiting Treatment

The aim of managing vomiting, especially if it is recurrent, prolonged or excessive involves...

9 Jan 2010

Vomiting Causes

Nausea and vomiting in adults and children has a range of causes. Vomiting is usually a symptom of an underlying problem and the cause of prolonged vomiting needs to be investigated and determined to ensure the most effective treatment.

9 Jan 2010

Vomiting Complications

Vomiting may lead to several complications, especially if it is recurring over a period of hours or days. Some of the complications associated with repeated vomiting include:

9 Jan 2010

Vomit Content

Vomiting is usually a symptom of an underlying condition and the contents and color of vomitus provides clues as to what that condition might be.

9 Jan 2010

Vomiting Mechanism

Vomiting is a forceful expulsion of the contents of the stomach and sometimes the gut. The whole mechanism is guided and controlled by the brain and its vomiting centre.

9 Jan 2010

What is Vomiting?

The term "vomiting" describes the forceful expulsion of the contents of the stomach via the mouth or sometimes the nose, also known of as emesis. The causes of vomiting are as wide ranging as those for nausea and include anything from food poisoning or gastritis to head injuries and brain cancer. Nausea is the discomfort that is felt before vomiting but not all nausea actually results in vomiting.

9 Jan 2010

Virus Uses in Virology

With advent of virology, researchers have found several uses for these unique organisms. They have been used extensively in medicine and in genetic engineering. Some of the uses of viruses are outlined as follows.

9 Jan 2010

Human Diseases Caused by Viruses

When a cell is infected with a virus several effects may be seen. Many viruses cause no harm or disease whatsoever. However, some viruses may attack certain cells and multiply within them.

9 Jan 2010

Virus Infection in Other Species

Viruses may infect all cells and each cellular organism has its own specific range of viruses that often infect only that species. Some viruses in addition can replicate only in cells that have been taken over by other viruses. These are called satellites or parasites of other viruses.

9 Jan 2010

Virus Classification

Initially after viruses were discovered there was no system for classifying viruses. Consequently viruses were named haphazardly. Most of the vertebrate viruses have been named according to:

9 Jan 2010

Virus Microbiology

Viruses are the smallest obligate intracellular parasites that require living host cells in order to multiply and being alive. Viruses can infect any type of cell, ranging from human cells to protozoa.

9 Jan 2010

Virus Origins

Viruses have been referred to since ancient times. However, the exact origin of these tiny organisms that carry only the genetic information in a protein coat is still unknown.

9 Jan 2010

Virus History

Viruses have existed as long as life has been on earth.

9 Jan 2010

What is a Virus?

A virus is a small infectious agent that can only replicate inside the cells of another organism.

9 Jan 2010

Vaccine Delivery

Once manufactured in large amounts, actual vaccine delivery and administration are of prime importance for it to be successful in preventing the ailment. Vaccine administration has been traditionally via injections but several new methods of vaccine delivery are also being explored these days. These new methods are hoped to improve compliance of the general population, ease administration and help in larger coverage.

9 Jan 2010

Vaccine History

Vaccines have been found to be the most successful and cost effective public health measures that prevent disease and save lives. This is particularly true among children all over the world. Over the last half of the 20th century, diseases that were once all too common became rare in the developed world, due primarily to widespread immunization. Hundreds of millions of lives have been saved and billions of dollars in public health expenditures have been saved with widespread vaccinations.

9 Jan 2010