Computer Cooling Systems - Water, Fans
PC cooling systems are one of the hottest - and coolest - computer hardware accessories avaliable. Most computers, however, still do not come with a cooling system more advanced than the typical heat sink and cpu fan. Some computers, however, are being sold with liquid cooling systems, such as the Apple G5 Power Mac. The dual processors undoubtedly put out a great deal of excess heat that a simple copper heat sink and fan alone can not properly dissipate. Intel is also getting into the new cooling trend, claiming that it's newest processors (of the Pentium 4 line) are approximately 20 degrees hotter than any chip currently produced by AMD (Advanced Micro Devices).
Mesothelioma clinical information
- Background
- Symptoms
- Diagnosis
- Treatments
The link between Asbestos and Mesothelioma
How to obtain legal help
Source: National Cancer Institute at http://cis.nci.nih.gov/fact/6_36.htm
Mesothelioma is a rare form of cancer in which malignant (cancerous) cells are found in the mesothelium, a protective sac that covers most of the body's internal organs. Most people who develop mesothelioma have worked on jobs where they inhaled asbestos particles.
1. What is the mesothelium?
The mesothelium is a membrane that covers and protects most of the internal organs of the body. It is composed of two layers of cells: One layer immediately surrounds the organ; the other forms a sac around it. The mesothelium produces a lubricating fluid that is released between these layers, allowing moving organs (such as the beating heart and the expanding and contracting lungs) to glide easily against adjacent structures.
The mesothelium has different names, depending on its location in the body. The peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity. The pleura is the membrane that surrounds the lungs and lines the wall of the chest cavity. The pericardium covers and protects the heart. The mesothelial tissue surrounding the male internal reproductive organs is called the tunica vaginalis testis. The tunica serosa uteri covers the internal reproductive organs in women.
2. What is mesothelioma?
Mesothelioma (cancer of the mesothelium) is a disease in which cells of the mesothelium become abnormal and divide without control or order. They can invade and damage nearby tissues and organs. Cancer cells can also metastasize [to spread from one part of the body to another. When cancer cells metastasize and form secondary tumors, the cells in the metastatic tumor are like those in the original (primary) tumor] from their original site to other parts of the body. Most cases of mesothelioma begin in the pleura or peritoneum.
3. How common is mesothelioma?
Although reported incidence rates have increased in the past 20 years, mesothelioma is still a relatively rare cancer. About 2,000 new cases of mesothelioma are diagnosed in the United States each year. Mesothelioma occurs more often in men than in women and risk increases with age, but this disease can appear in either men or women at any age.
4. What are the risk factors for mesothelioma?
Working with asbestos is the major risk factor for mesothelioma. A history of asbestos exposure at work is reported in about 70 percent to 80 percent of all cases. However, mesothelioma has been reported in some individuals without any known exposure to asbestos.
Asbestos is the name of a group of minerals that occur naturally as masses of strong, flexible fibers that can be separated into thin threads and woven. Asbestos has been widely used in many industrial products, including cement, brake linings, roof shingles, flooring products, textiles, and insulation. If tiny asbestos particles float in the air, especially during the manufacturing process, they may be inhaled or swallowed, and can cause serious health problems. In addition to mesothelioma, exposure to asbestos increases the risk of lung cancer, asbestosis (a noncancerous, chronic lung ailment), and other cancers, such as those of the larynx [The area of the throat containing the vocal cords and used for breathing, swallowing, and talking. Also called the voice box.] and kidney.
Smoking does not appear to increase the risk of mesothelioma. However, the combination of smoking and asbestos exposure significantly increases a person's risk of developing cancer of the air passageways in the lung.
5. Who is at increased risk for developing mesothelioma?
Asbestos has been mined and used commercially since the late 1800s. Its use greatly increased during World War II. Since the early 1940s, millions of American workers have been exposed to asbestos dust. Initially, the risks associated with asbestos exposure were not known. However, an increased risk of developing mesothelioma was later found among shipyard workers, people who work in asbestos mines and mills, producers of asbestos products, workers in the heating and construction industries, and other tradespeople. Today, the U.S. Occupational Safety and Health Administration (OSHA) sets limits for acceptable levels of asbestos exposure in the workplace. People who work with asbestos wear personal protective equipment to lower their risk of exposure.
The risk of asbestos-related disease increases with heavier exposure to asbestos and longer exposure time. However, some individuals with only brief exposures have developed mesothelioma. On the other hand, not all workers who are heavily exposed develop asbestos-related diseases.
There is some evidence that family members and others living with asbestos workers have an increased risk of developing mesothelioma, and possibly other asbestos-related diseases. This risk may be the result of exposure to asbestos dust brought home on the clothing and hair of asbestos workers. To reduce the chance of exposing family members to asbestos fibers, asbestos workers are usually required to shower and change their clothing before leaving the workplace.
6. What are the symptoms of mesothelioma?
Symptoms of mesothelioma may not appear until 30 to 50 years after exposure to asbestos. Shortness of breath and pain in the chest due to an accumulation of fluid in the pleura are often symptoms of pleural mesothelioma. Symptoms of peritoneal [having to do with the peritoneum (the tissue that lines the abdominal wall and covers most of the organs in the abdomen)]. mesothelioma include weight loss and abdominal pain and swelling due to a buildup of fluid in the abdomen. Other symptoms of peritoneal mesothelioma may include bowel obstruction, blood clotting abnormalities, anemia [a condition in which the number of red blood cells is below normal], and fever. If the cancer has spread beyond the mesothelium to other parts of the body, symptoms may include pain, trouble swallowing, or swelling of the neck or face.
These symptoms may be caused by mesothelioma or by other, less serious conditions. It is important to see a doctor about any of these symptoms. Only a doctor can make a diagnosis.
7. How is mesothelioma diagnosed?
Diagnosing mesothelioma is often difficult, because the symptoms are similar to those of a number of other conditions. Diagnosis begins with a review of the patient's medical history, including any history of asbestos exposure. A complete physical examination may be performed, including x-rays of the chest or abdomen and lung function tests. A CT (or CAT) scan or an MRI may also be useful. A CT scan is a series of detailed pictures of areas inside the body created by a computer linked to an x-ray machine. In an MRI, a powerful magnet linked to a computer is used to make detailed pictures of areas inside the body. These pictures are viewed on a monitor and can also be printed.
A biopsy is needed to confirm a diagnosis of mesothelioma. In a biopsy, a surgeon or a medical oncologist (a doctor who specializes in diagnosing and treating cancer) removes a sample of tissue for examination under a microscope by a pathologist. A biopsy may be done in different ways, depending on where the abnormal area is located. If the cancer is in the chest, the doctor may perform a thoracoscopy. In this procedure, the doctor makes a small cut through the chest wall and puts a thin, lighted tube called a thoracoscope into the chest between two ribs. Thoracoscopy allows the doctor to look inside the chest and obtain tissue samples. If the cancer is in the abdomen, the doctor may perform a peritoneoscopy. To obtain tissue for examination, the doctor makes a small opening in the abdomen and inserts a special instrument called a peritoneoscope into the abdominal cavity. If these procedures do not yield enough tissue, more extensive diagnostic surgery may be necessary.
If the diagnosis is mesothelioma, the doctor will want to learn the stage (or extent) of the disease. Staging involves more tests in a careful attempt to find out whether the cancer has spread and, if so, to which parts of the body. Knowing the stage of the disease helps the doctor plan treatment.
Mesothelioma is described as localized if the cancer is found only on the membrane surface where it originated. It is classified as advanced if it has spread beyond the original membrane surface to other parts of the body, such as the lymph nodes [a rounded mass of lymphatic tissue that is surrounded by a capsule of connective tissue. Lymph nodes filter lymph (lymphatic fluid), and they store lymphocytes (white blood cells). They are located along lymphatic vessels], lungs, chest wall, or abdominal organs.
8. How is mesothelioma treated?
Treatment for mesothelioma depends on the location of the cancer, the stage of the disease, and the patient's age and general health. Standard treatment options include surgery, radiation therapy, and chemotherapy. Sometimes, these treatments are combined.
· Surgery is a common treatment for mesothelioma. The doctor may remove part of the lining of the chest or abdomen and some of the tissue around it. For cancer of the pleura (pleural mesothelioma), a lung may be removed in an operation called a pneumonectomy. Sometimes part of the diaphragm, the muscle below the lungs that helps with breathing, is also removed.
· Radiation therapy, also called radiotherapy, involves the use of high-energy rays to kill cancer cells and shrink tumors. Radiation therapy affects the cancer cells only in the treated area. The radiation may come from a machine (external radiation) or from putting materials that produce radiation through thin plastic tubes into the area where the cancer cells are found (internal radiation therapy).
· Chemotherapy is the use of anticancer drugs to kill cancer cells throughout the body. Most drugs used to treat mesothelioma are given by injection into a vein (intravenous, or IV). Doctors are also studying the effectiveness of putting chemotherapy directly into the chest or abdomen (intracavitary chemotherapy).
To relieve symptoms and control pain, the doctor may use a needle or a thin tube to drain fluid that has built up in the chest or abdomen. The procedure for removing fluid from the chest is called thoracentesis. Removal of fluid from the abdomen is called paracentesis. Drugs may be given through a tube in the chest to prevent more fluid from accumulating. Radiation therapy and surgery may also be helpful in relieving symptoms.
9. Are new treatments for mesothelioma being studied?
Yes. Because mesothelioma is very hard to control, the National Cancer Institute (NCI) is sponsoring clinical trials (research studies with people) that are designed to find new treatments and better ways to use current treatments. Before any new treatment can be recommended for general use, doctors conduct clinical trials to find out whether the treatment is safe for patients and effective against the disease. Participation in clinical trials is an important treatment option for many patients with mesothelioma.
People interested in taking part in a clinical trial should talk with their doctor. Information about clinical trials is available from the Cancer Information Service (CIS) (see below) at 1–800–4–CANCER. Information specialists at the CIS use PDQ®, NCI's cancer information database, to identify and provide detailed information about specific ongoing clinical trials. Patients also have the option of searching for clinical trials on their own. The clinical trials page on the NCI's http://www.cancer.gov Web site, located at http://www.cancer.gov/clinical_trials on the Internet, provides general information about clinical trials and links to PDQ.
People considering clinical trials may be interested in the NCI booklet Taking Part in Clinical Trials: What Cancer Patients Need To Know. This booklet describes how research studies are carried out and explains their possible benefits and risks. The booklet is available by calling the CIS, or from the NCI Publications Locator Web site at http://www.cancer.gov/publications on the Internet.
The link between Asbestos and Mesothelioma
Asbestos and Mesothelioma by MesotheliomaFirms.com
Asbestos is a dangerous and potentially deadly substance that was once widely used in a range of items, from ceiling and wall tiles to insulation and auto brakes. In the past, most people outside of the industry were totally unaware of the dangers relating to asbestos. However, over recent years the dangers and deadly effects of asbestos have become all too apparent, with more and more cases of the most deadly of these effects - mesothelioma - coming to light every day.
Mesothelioma is a malignant cancer that can start in the cavities of the lungs, the heart, or the abdomen. This cancer is the direct result of exposure to disturbed asbestos, where the fibers become airborne. These airborne asbestos fibers can then be easily ingested or breathed in by those in the vicinity that are not wearing adequate protection. Once the asbestos fibers have lodged themselves within various parts of the body, they cannot be destroyed by the cells of the immune system, which are known as macrophages. Instead, the asbestos fibers lead to scar tissue within the body, and this is what can lead to mesothelioma and other asbestos related injuries.
People that have contracted mesothelioma through asbestos exposure do not realize that anything is wrong for years. The typical latency period for this cancer is around twenty to forty years, which means that those affected may not find out for three or four decades following the exposure. Further delays can be experienced because of the symptoms of mesothelioma, which are very non-specific in nature - this means that they could easily be attributed to other more common ailments. This often leads to a delay in diagnosis, causing further delays when it comes to treatment of any sort.
There is currently no known cure for mesothelioma, although clinical trials and tests are continually being conducted. Over the past few years, many breakthroughs have been made in short term treatments and diagnostic procedures, which gives fresh hope to sufferers of this cancer. However, until a cure has been found, many people will continue to lose their lives due to the irresponsibility of various companies and manufacturers in decades gone by.
Understandably, sufferers and their families want to see some form of compensation for the pain, suffering, and misery caused by asbestos and mesothelioma. Although no amount of money can make up for the damage done by unprotected asbestos exposure, it can help to pay for medical costs, and can also provide the sufferer's family with a more financially secure future.
It is important for anyone that is diagnosed with mesothelioma to seek legal assistance from an experienced mesothelioma lawyer without delay. Although legal action may not be something that you wish to think about after being dealt a bombshell such as this, any delay could make a difference between claiming millions of dollars for your suffering, expenses, and your family's future, or getting nothing at all. Your lawyer will need to know the extent of damage and the stage of your cancer, so it is advisable to provide a medical report from your doctor to enable your lawyer to put together a solid mesothelioma lawsuit and get as much compensation as possible for you and your loved ones.
About the Author
MesotheliomaFirms.com offers listings of experienced mesothelioma attorneys and asbestos and mesothelioma information and articles. Visit MesotheliomaFirms.com for additional asbestos articles and information.
Protect Against Mesothelioma by Avoiding Asbestos by Jimmy Atkinson
Mesothelioma is a rare cancer that attacks the body's mesothelial cells around the organs. The mesothelium provides a protective membranous lining for the internal organs and allows moving organs (i.e. the heart and the lungs) to glide easily against adjacent structures. The names of the three regions of mesothelial cells that provide protective coating are 1) pleura, the sac which surrounds the lungs; 2) peritoneum, the lining which protects the abdominal cavity; and 3) pericardium, the sac which surrounds the heart. Three different types of mesothelioma cancer attack these three different regions.
Pleural mesothelioma: A type of lung cancer which attacks the pleura surrounding the lungs, this is the most common type of mesothelioma, affecting approximately two-thirds of all mesothelioma patients. Symptoms include horseness, fever, blood in sputum, swollen arms and face, coughing, loss of weight, difficulty breathing, chest pain, weak muscles, and reduced tactile sensitivity.
Peritoneal mesothelioma: A cancer of the abdomen which attacks the peritoneum lining the abdominal cavity. This affects approximately one-third of all mesothelioma patients. Symptoms include abdominal bloating, impaired bowl function, fever, swollen feet, and nausea.
Pericardial mesothelioma: This form of mesothelioma which attacks the pericardium surrounding the heart is extremely rare. Symptoms include chest pain, dyspnea, cough, and palpitations.
Mesothelioma has been linked to asbestos exposure. Asbestos is a type of building material used in thermal insulation products and ceiling tiles. In the United States, asbestos usage peaked during the 1950s - 1970s. During the late 1960s, concerns over the health consequences of asbestos exposure began to arise, thereby decreasing the amount of asbestos manufactured in next two decades. By the 1980s, a new industry of asbestos abatement began to flourish. But according to the United States Environmental Protection Agency (EPA), as many as 733,000 schools and public buildings still contain asbestos.
Small asbestos fibers that enter the air do not evaporate and can remain suspended in the air for a long time. These fibers, when breathed into the body, are toxic. There are three types of asbestos exposure.
Occupational asbestos exposure: People working in factories that manufacure asbestos are likely to have a high exposure to asbestos and are most at risk of developing asbestosis or mesothelioma.
Paraoccupational asbestos exposure: Family members of workers exposed to asbestos in the workplace are susceptible to exposure from asbestos dust brought home by the worker on his clothes or skin.
Neighborhood asbestos exposure: Those who live in the vicinity of an asbestos manufacturing plant are also at risk.
Mesothelioma is still a relatively rare form of cancer. There are an estimated 2,000 - 3,000 new cases per year in the United States. Approximately 7-13 per one million male patients with a history of asbestos exposure contract mesothelioma. Diagnosis usually occurs 20-40 years after initial exposure to asbestos.
About the Author
Jimmy Atkinson writes for the Mesothelioma Blog.
L&S Announce Steps to Protect Against Asbestos & Mesothelioma by Rich McIver
Lewis and Sholnick have announced the publication of some simple precautionary steps can be taken to avoid high risk situations in regards to asbestos and mesothelioma.
Mesothelioma is a rare form of cancer caused by exposure to asbestos. It refers specifically to a cancerous tumor which involves the mesothelial cells of an organ, usually the lungs or abdomen. Despite being classified under the rather broad category of cancer, however, Mesothelioma is unique for a number of reasons. First is the immense devastation of the disease, and the inability for modern medical techniques to significantly slow its onset or offer a cure. Approximately 75% of patients die within 18 months of the first signs of the disease. Second, is the long latency period between exposure to the cause of the disease, asbestos, and its onset. Latency runs the gamut from 15 to 50 years, meaning that a person may have been exposed to asbestos more than a half century before the first serious signs of the disease manifest themselves. The average reported latency, however, is approximately 35-40 years.
Precautionary Steps
Because of the devastating nature of the disease and because we are able to point to a single root source, asbestos exposure, there is significant reason for all individuals to take necessary precautions to avoid contraction of the disease. While certainly no steps taken can fully eliminate all risk of asbestos exposure, some simple precautionary steps can be taken to avoid high risk situations.
For instance, a responsible parent should contact their childrenís local school district. In 1986 Congress passed the Asbestos Hazard Emergency Response Act, which required public and private nonprofit schools to inspect their buildings for asbestos-containing materials. Despite this, an untold number of schools either have not taken the necessary steps to eliminate the potential for asbestos exposure or the work has been done shoddily. In fact, just two years ago a New York school district was found to have high levels of asbestos despite having had a contractor "remove" the threat a mere five years before. Upon further investigation, however, the contractor used had already been cited numerous times for doing work not up to code in similar asbestos removal projects. Consequently, concerned parents should first contact their childrenís school district to receive a copy of documentation stating that indeed, proper steps were taken to remove asbestos from the building. Then, parents should do a bit of their own research via the internet and the Better Business Bureau to ensure that the contractor hired has a stellar record.
More information can be found at http://www.lsasbestoslaw.com , a free online resource. See http://www.lsasbestoslaw.com/results.html for more information on mesothelioma and asbestos litigation.
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