Expiration Dates Selected IV Rank IV Percentile Volatility Term Structure charts plot the at-the-money implied volatility across expirations, which are an invaluable tool in determining options strategies based on anticipated changes in volatility. Backwardation is when volatility slopes downwards. Contango...
The difference between píngqì and dìngqì is explained on our solar term page. The dates of the calendrical solar terms after 1733 were mostly the same as the dates calculated using the modern method and therefore they are omitted, except when there were discrepancies. Gregorian calendar is ...
The expression “Common Era” is alsono new invention, however. It has beenin use for several hundred years. In English, it is found in writings as early as 1708. In Latin, the term “Vulgaris Aerae” (Vulgar Era) was used interchangeably with “Christian Era” as far back as the 160...
The additional 1‰ was estimated by the long-term evaluation of the references used for quality control. For quality control the measurement of about every third sample was replicated on the same cellulose. This allows for a chi-square analysis and shows that the repeated measurements are ...
By what other term are the kings of Egypt called? What were the two types of writing in ancient Egypt? Which pharaoh probably built the first true pyramid? News• Tomb of unidentified ancient Egyptian pharaoh discovered•Mar. 28, 2025, 6:42 AM ET (Reuters) ...
These abbreviations are tied toBCandADwithout being explicitly tied to Christianity as well.BCE(Before Common Era) andCE(Common Era) have been used since the early 1700s by various writers and English language dictionaries. There was a secular term before these came into common use as well: Vu...
remains unknown. The statistical constraints provided by the data will help to test different approaches in solar/stellar physics describing the occurrence and magnitude of extreme events in sun-like stars. Ranking among the three largest short-term14C production events, the impact of the newly ...
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Furthermore, among the manuscripts found in a tomb in Shuihudi 睡虎地 (Hubei) dated to 217 BCE, there are statutes of the Qin in which we find the term shufu書府 (lit. ‘repository for writings’). Anthony F. P. Hulsewé has aptly translated this term as ‘archive’: 毋敢以火入...