Which nutrients do we need daily and how much? I put this list together from the information provided by a dietary supplement manufacturer. |
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The daily values of the following nutrients are established. |
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Nutrient |
Value |
Unit |
Vitamin A |
5000 |
IU |
Vitamin C |
60 |
mg |
Vitamin D |
400 |
IU |
Vitamin E |
30 |
IU |
Vitamin B1 |
1.5 |
mg |
Vitamin B2 |
1.7 |
mg |
Niacin |
20 |
mg |
Vitamin B6 |
2 |
mg |
Folic acid |
500 |
mcg |
Vitamin B12 |
6 |
mcg |
Biotin |
300 |
mcg |
Pantothenic acid |
10 |
mg |
Calcium |
200 |
mg |
Phosphorous |
125 |
mg |
Iodine |
150 |
mcg |
Magnesium |
417 |
mg |
Zinc |
15 |
mg |
Selenium |
70 |
mcg |
Copper |
2 |
mg |
Manganese |
2 |
mg |
Chromium |
120 |
mcg |
Molybdenum |
75 |
mcg |
The daily values of the following nutrients are typical and are not established. |
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Nutrient |
Value |
Unit |
Nickel |
5 |
mcg |
Silicon |
4 |
mg |
Tin |
10 |
mcg |
Vanadium |
10 |
mcg |
Lutein |
250 |
mcg |
Category: Science
Carbon dioxide emissions don't cause global warming
In April, KLM had an interesting exclusive in-flight documentary on global warming which I happened to watch.
The documentary goes on to present that man-made CO2 emissions do not cause global warming. It states that earth’s present temperature increase is driven by the sun and not by human activity. A few points presented in the documentary are:
1. CO2 is not the major green house gas. Its concentration change has been too small to explain such major temperature differences. Oceans can emit 180 billion tons of CO2 tonnes of CO2 where as human activity emits only about 7 billion tons. It is argued that water vapour and methane are bigger influences than CO2.
2. Earth has seen decades of temperatures which were significantly higher and and also significantly lower. But the ice did not ever vanish completely.
3. Changing of the size of the polar ice caps is explained to be a normal thing which happens routinely with temperature even between summer and winter.
4. Earth’s temperature is more closely related to solar activity and is known to have had a very good co-relation with it for centuries.
5. Change in CO2 concentration in the polar ice caps is an effect of change of earth’s temperature and it has a 800 year lag. This 800 year year lag is the time required for the temperature of the oceans to change to release or absorb CO2.
6. Earth’s temperature continued to drop from 1940 to 1970 when the economic activity boomed. The present upward trend lasts from only 1970.
7. Yet another observation was that the change in temperature profiles of the earth’s atmospheric layers did not seem to support increased green-house activity.
8. The model used to predict the global climate has several hundreds of assumptions on which not all experts seem to be in agreement. Clearly, a model can only be as good as the assumptions that go up to make it.
The documentary goes on to state that the IPCC report is driven by considerations that are non-scientific and serves to retain several jobs which were created by the billions of dollars funded to study this.
Those who are closely following the global warming issue must be already aware that there is a clear second opinion on the need to limit the emissions from developing countries in order to reduce global warming.
One can’t help but wonder if the entire global warming tale is fabricated by an energy thirsty group of nations who are using misleading pointers to prevent the developing nations from creating a stronger demand for energy.
That documentary was an eye-opener to me.
Artifical life, in a test tube!
The guardian reports that scientists have now been able to achieve artificial synthesis of protiens. Mind blowing, indeed.
The article is at:
http://www.guardian.co.uk/science/2007/sep/06/2
Well, Synthetic biology?
I’ve never even heard of it despite being an engineer for over a decade.
I don’t know how many doors this would open though.
Educational objectives
There are said to be six major areas in the cognitive development process that includes: knowledge, comprehension, application, analysis, synthesis, and evaluation.
1. Knowledge is remembering previously learned material, from specific facts to complete theories.
2. Comprehension is the ability to grasp the meaning of material.
3. Application is the ability to use learned material in and concrete situations. This may include the application of such things as rules, methods, and concepts.
4. Analysis is defined as the ability to break down a problem into component parts so that its organization is understood.
5. Synthesis is defined as the ability to put parts together to form a new whole view or aspect
6. Evaluation is defined as the ability to judge the value of materials for a given purpose
I love Wikipedia
I love Wikipedia for many reasons
– It is a dynamic encyclopedia
– It is free
– I can contribute to it
– It unleashes the full power of hypertext and enables the knowledge seeker to reach new limits effortlessly
Now there is one more reason to love it.
– It runs offline on my Palm.
I discovered the possibility just 5 hours ago. Thanks to the download speeds and possibilities in the U.S., Wikipedia is now running off-line on my Palm