Saturday, January 23, 2010

solar system



There are many reasons people decide to install a solar system in their homes. Some of them are:




• To preserve the earth's fuel resources and reducing air pollution



• To invest in a energy-producing improvement



• To reduce the electrical bill and not be bothered of any future increases



Whatever is your reason, solar energy is going to be the energy source option for the future. We have to take advantage of it right now. Now, let us see that you are thinking about buying a solar system for your home or business. Good! Now, why not to install it yourself and save money. Interested?


Is your home or property prepared?




What I mean you have to be sure how your house is located in direction to the sun. In USA, the sun is always in the southern half of the sky, usually higher in the summer and lower in winter. For that reason, there are several things you have to know first.



Is your house free from trees, buildings or other obstructions? Does your house have a flat roof or which side is the roof facing? Would you need a mounting track? How much it will cost if I decided to install it myself?



All these questions can be easily answered when you have a complete guide that explains you step by step in detail how you can do it.



You can even install a solar panel with less than $200.

Thursday, January 21, 2010

cancer

Not taking into account certain skin cancers, in 2005, more than 570,000 Americans, or more than 1,500 people a day, will die of cancer. The bad news is the rate is increasing by about 1% a year. Finally, one in three of us will be diagnosed with cancer during our life.

Cancer tends to affect older people, but it can strike at any time. Some cancer, such as breast, are becoming more common. New cases of lung cancer fall away due to the big number of smokers. According to statistics, cancer is the second leading cause of death among Americans. It is responsible for one of every four deaths in the United States

However, while the overall number of new cancers is not falling, the good news is that successful treatment rates for many of the most common types are improving rapidly.

On the other hand, recent studies claims the number of new cancer cases can be reduced substantially, and many cancer deaths can be prevented. It's in our power to adopt healthier lifestyles. Just take a look to the following list:

1. avoid tobacco use,
2. increase physical activity,
3. achieve optimal weight,
4. improve nutrition,
5. avoid sun exposure.

The above actions can significantly reduce a person’s risk for cancer. On the other side, making cancer screening, information, and referral services accessible and available to all Americans is also crucial for reducing the high rates of cancer and cancer deaths.

Wednesday, January 6, 2010

Liver cancer

Liver cancer


Liver is an important organ that performs a number of different functions like maintaining fluid balance in the body, handling toxic substances etc. It also produces bile that is instrumental in breaking down fat. Occurrence of cancer in the liver is termed as liver cancer.
Types of Liver cancer
On a broad basis, we can classify liver cancer as primary liver cancer and secondary cancer. When cancer originates in the liver itself, it is called as primary liver cancer. Liver cancer is known as secondary liver cancer when it originates in some other part of the body and then spreads to liver (e.g. due to proximity of liver to the place where cancer originated in the body). Hepatoma and bile duct cancer are the two main types of liver cancer.
Causes of Liver cancer
The two main causes of Liver cancer are: Excessive consumption of alcoholic drinks and occurrence of infections like Hepatitis B and Hepatitis C. It’s unfortunate to note that though a number of people know that alcohol can increase the risk of Liver cancer, they still don’t cut down on alcohol.
Symptoms of Liver cancer
Liver cancer can lead to enlargement of Liver which can result in discomfort e.g. pain in the upper abdomen or pain in the right shoulder. There are some other common symptoms of Liver cancer (none of them are too conclusive though) like nausea, weakness, loss of weight etc. Other symptoms of liver cancer include jaundice and fluid disbalance in the body (e.g. building up of fluid in the abdomen). However, these too are just mildly indicative of liver cancer and are in no way conclusive symptoms.
Diagnosis of Liver cancer
Recognizing the symptoms and seeking professional help (from qualified doctors) can help early diagnosis of liver cancer. So, consult your doctor and let him/her know all the symptoms that you have been experiencing. The doctor might do a physical examination and prescribe certain tests as the need may be. The physical examination is basically to check the enlargement of liver. Other tests include liver ultrasound scan, abdominal CT scan, liver biopsy etc.
Treatment of liver cancer
Based on the type of liver cancer, the stage of liver cancer and your general health etc, the doctor might prescribe one or more liver cancer treatment techniques. Surgical procedure to remove the affected part of liver is one of the treatments for liver cancer (especially if it has not spread elsewhere). Besides surgery there are other techniques that use laser and other procedure for removal or destruction of tumor/ liver cancer. Chemotherapy is also one of the liver cancer treatments.

Monday, January 4, 2010

leukemia


Leukemia is generally considered and known as blood cancer, where as if considered in its real terms leukemia is a cancer of the white blood cells and the platelets. These platelets actually help blood to clot. Additionally when the white blood cells reduce in amount they actually leave the immune system unlocked for attack and the patient sometimes die of a very usual illness like flu. In general the deficiency of normal white cells impairs the body's ability to struggle against infections. A shortage of platelets results in bruising and easy bleeding whenever there is a need of clot to stop the flow of blood.
All kinds of various acute or chronic diseases of leukemia are dangerous. Acute leukemia being a swiftly succeeding disease affects typically cells that are embryonic or primitive (which means the cells that have not yet fully developed or differentiated from the others). These not fully formed cells thus cannot achieve their standard utility. These cells are described as "nonfunctional" because they do not work like normal cells. They also number out the usual normal healthy cells in the marrow, resulting in a decrease in the number of new healthy normal cells made in the marrow. These later results in low red cell counts which is a typical form of anemia.
On the other hand chronic leukemia develops gradually, and allows the development of larger amounts of more developed cells. In broader perspective, these more grown-up cells can achieve some of their typical functionality but due to the increase in the number of cells like white blood cells the blood flow may slow down and result in severe anemia.
The leukemia is categorized in to four basic categories which are as follows:
• Acute Myelogenous Leukemia (AML)
• Acute Lymphocytic Leukemia (ALL)
• Chronic Myelogenous Leukemia (CML)
• Chronic Lymphocytic Leukemia (CLL)
For acute leukemia following are the signs and symptoms of leukemia:
• Fatigue or tiredness
• Shortness of breath during physical activity
• Sluggish curing of cuts and excess bleeding
• Mild fever or night sweats
• Black-and-blue spots (bruises) for no evident cause
• Pinhead-size red spots under the skin
• Pale skin
• Low white cell counts
• Aches in bones or joints
As far as chronic leukemia is concerned people with CLL or CML may not have any symptoms. Some patients learn they have CLL or CML after a blood test as part of a usual checkup. Occasionally, a person with CLL may see enlarged lymph nodes in the neck, armpit or groin and go to the doctor. The person may feel exhausted or short of breath or have frequent infections, if the CLL is more severe. In these cases, a blood test may show an increase in the lymphocyte count.
A comprehensive blood count is utilized to make a diagnosis of leukemia. This blood examination may confirm high or low point of white cells and show leukemic cells within the blood. Sometimes, number of platelet and red cell are fairly low. Bone marrow tests like aspiration and biopsy are often carried out to verify the analysis and to glance for any chromosome irregularities. All these tests spot the leukemia and its cell category. These tests must be continued after regular intervals after treatment commences to gauge how sound the healing is.