David R. Johnston
نویسنده
چکیده
I give a brief review of Big Bang Nucleosynthesis (BBN) and of the Cosmic Microwave Background Radiation (CMBR). The methods used to constrain YP by the CMBR are then discussed, including methods later discarded in favor of others. To conclude, I give limits found by our analysis and discuss the implications of said limits.
منابع مشابه
بررسی میزان اعتبار روش Tanaka-Johnston جهت برآورد پهنای مزیودیستال دندان های دائمی نیش و آسیای کوچک در یک نمونه از جمعیت شهر قزوین
Statement of Problem: One of the easiest and most practical methods to predict the size of permanent canines and premolars, is of Tanaka-Johnston, but their research has been only performed on white skin North Europeans and it should be noted that the size of teeth, in various races, differ from each other.Purpose: The aim of this study was to determine the validity of Tanaka-Johnston method, i...
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