Foils Alpha
That is a correct conclusion to be drawn from the experiment results of Rutherford's gold foil?
R. All particles with positively charged alpha pass directly through the gold foil. B. The alpha particles collide with electrons in the gold atoms, causing the atoms to become cations. C. There is an interaction between alpha particles and negligible gold atoms. D. Some alpha particles are scattered by the nuclei of gold atoms. E. Alpha particles are helium nuclei with positive charge.
D. The positive nuclei of gold atoms deflect the alpha particles (which are helium atoms without electrons, He2 +). However, this happens very little as the core in relation to the size of the atom is very small.
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The benefits of fish oil
When it comes to nutrition and diet, there are good fats and bad fats. Synthetically produced fatty acids trans are bad in any amount and saturated fats from animal products should be kept to a minimum. The best fats are those that contain essential fatty acids, so called because the need to live. Essential fatty acids are polyunsaturated and grouped into two families, the essential fatty acids omega-6 and omega-3 fatty Essential fatty.
Small differences in composition between the two groups that both EFA families act very differently in the body. While products Metabolism of omega-6 acids promote inflammation, blood clotting and tumor growth, while omega-3s have a full effect otherwise. Despite the need both omega-3 and omega-6 is increasingly clear that too much omega-6 fatty acids can have dire consequences. Many Scientists believe a major reason for the high incidence of heart disease, hypertension, diabetes, obesity, premature aging, and some forms cancer are the major imbalances between intake of high amounts of omega-6 and lower amounts of omega-3 fatty acids.
Sources and Recommended Daily Requirements
The main sources of omega-6 fatty acids are vegetable oils like corn oil and soybean oil containing a high proportion of linoleic acid. Omega-3 acids found in flaxseed oil, walnut oil and marine plankton and fatty fish. The main component of flaxseed and walnut oils is alpha-linolenic acid, while the predominant fatty acids in fatty fish and fish oil are eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). The most beneficial and active of these fatty acids EPA and DHA.
Recent research has shown that consuming fish oil (EPA and DHA) play a crucial role in preventing and even the treatment of many diseases and conditions such as atherosclerosis, myocardial infarction, depression, cancer, rheumatoid arthritis, diabetes, ulcerative colitis and Raynaud's disease.
Recognizing the benefits of EPA and DHA and the serious consequences of a deficiency in our diet, the National Institute of Health USA recently published recommended daily intake of fatty acids. They recommend a total daily intake of 650 mg of EPA and DHA, 2.22 g / day of alpha-linolenic acid and 4.44 g / day linoleic acid. Your saturated fat intake should not exceed 8 percent of their total caloric intake, or about 18 g / day.
Good fish oil for brain
The human brain is one of the largest "consumers" of DHA. According to investigators, a normal adult human brain contains over 20 grams of DHA. Low levels of DHA have been linked to brain serotonin low levels, which are connected to a growing trend of depression, suicide and violence. A high intake of fish has been linked to a significant decrease in the age of memory loss and related cognitive function impairment and reduced risk of developing Alzheimer's disease. In addition, several studies have established a clear association between low levels of omega-3 fatty acids and depression.
An adequate intake of DHA and EPA is particularly important during pregnancy and lactation. During this time, the mother must supply all the needs of baby DHA and EPA, because it is unable to synthesize these essential fatty acids itself. There is some evidence that an insufficient intake of omega-3 fatty acids may increase the risk of preterm delivery and low birth weight abnormally.
The constant shrinking reserves of DHA from the mother can easily lead to a deficiency and an investigation has concluded that preeclampsia (pregnancy-related high blood pressure) and postpartum depression could be linked to a DHA deficiency.
Researchers have found that children who regularly eat fresh, oily fish are four times less likely to develop asthma than children who rarely eat such fish. Other research has found fish oil to be useful in treating other lung diseases such as cystic fibrosis and emphysema.
Fish Oil and Heart
A lot of medical literature shows that fish oils can prevent and help improve or reverse the atherosclerosis, angina, myocardial infarction, congestive heart failure, arrhythmias, stroke and peripheral vascular disease. Fish oils also have demonstrated their ability to help maintain the elasticity of artery walls, prevent blood clotting, reduce blood pressure and stabilize the rhythm heart.
Several studies have concluded that fish oil supplements may help prevent arrhythmias and sudden cardiac death in healthy men. Another study of heart attack survivors found that patients supplementing with fish oils significantly reduces the risk of another heart attack, stroke or death. Other researchers found that fish oil supplements for 2 years caused regression of atherosclerotic deposits.
Other researchers have found that supplementing with a minimum of 2 grams / day fish oil (410 mg EPA plus 285 mg of DHA) can lower diastolic pressure 4.4 mm Hg in systolic pressure and 6.5 mm Hg in people with high blood pressure. These reductions were sufficient to prevent patients taking medication at some cases of borderline hypertension, especially when combined with a program of salt restriction.
Reduces pain and helps prevent cancer
Fish oils have proven particularly effective in reducing inflammation and can be of great benefit for people suffering from rheumatoid arthritis or ulcerative colitis. Furthermore, it is known that patients with ulcerative colitis have abnormally low levels of blood from the EPA. Clinical trials have shown that supplementation with fish oil (2.7 grams of EPA and 1.8 grams of DHA per day) can reduce the severity of the deficiency of more than 50% and enable many patients to discontinue medication and anti-inflammatory steroids and cardiosteroids as prednisone.
There is now considerable evidence that fish oil consumption can delay or reduce tumor growth in breast cancer. Studies have also shown that high levels of omega-3 fatty acids, with a low level omega-6 acids reduces the risk of developing breast cancer.
Safe for fish oil supplements that are easily accessible
The transformation and packaging of fish oil is important to help determine quality. Low quality oils can be very unstable and contain significant amounts of mercury, cadmium, pesticides and other undesirable compounds monitored. High quality oils are stabilized with adequate amounts of vitamin E and are packaged in individual foil pouches or other containers resistant to light and oxygen. Recent research indicates emulsified fish oils are much better absorbed than the straight oils in gelatin capsules.
Attention!
The cod liver oils and fish oils are not the same. Cod liver oil is extracted from cod liver and is an excellent source of vitamins A and D. Fish oils are extracted from the flesh of fatty fish like salmon and herring are good sources of EPA and DHA. Fish oils contain very little of the vitamins A and D, but cod liver oil contains EPA and DHA. However, it is likely to exceed the recommended daily intake of vitamins A and D, if you were to seek therapeutic amounts of EPA and DHA from cod liver oil.
Of important note, research has shown that fish oil supplements has a blood concentration of vitamin E, making it a good idea to take extra vitamin E when adding fish oils to your diet.
About the Author
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Rutherford’s Experiment: Nuclear Atom
