Search results for "calendar"

Annual 14C Tree-Ring Data Around 400 AD: Mid- and High-Latitude Records

2019

ABSTRACTTwo tree-ring series, one from a high-latitude pine tree (located in northern Scandinavia) and one from a mid-latitude oak tree (located in eastern Germany) were analyzed for radiocarbon (14C) at annual resolution. The new records cover the calendar date ranges 290–460 AD and 382–486 AD, respectively, overlapping by 79 yr. The series show similar trends as IntCal13. However, some significant deviations around 400 AD are present with lower Δ14C (higher 14C ages). An average offset between the two new series and IntCal13 of about 20 years in conventional 14C age is observed. A latitudinal 14C offset between the tree sites in central and northern Europe, as would be expected due to the…

Statistical analysis of life history calendar data

2016

The life history calendar is a data-collection tool for obtaining reliable retrospective data about life events. To illustrate the analysis of such data, we compare the model-based probabilistic event history analysis and the model-free data mining method, sequence analysis. In event history analysis, we estimate instead of transition hazards the cumulative prediction probabilities of life events in the entire trajectory. In sequence analysis, we compare several dissimilarity metrics and contrast data-driven and user-defined substitution costs. As an example, we study young adults' transition to adulthood as a sequence of events in three life domains. The events define the multistate event…

Lunariu[m] in quo reperiuntur co[n]iunctio[n]es [et] opositio[n]es lune et eclypses solis [et] lune ...

1505

Caplletra ornada Lletra gòtica

Destierro merecido de opiniones equivocadas, y justamente deseada nueva correccion de tiempos, y desengaño descubierto en literales expressiones de …

1758

Sig. [ ]1, [calderó]4, A-P2, A-M4, N2 Grav. xil. - El grav. de la f. de làm. calc. Reclams. - Text amb postil·les marginals

On the Borana Calendrical System: A Preliminary Field Report

1988

This article addresses the astronomical functioning of the lunar calendar of the Oromo Borana (Ethiopia and Kenya). It is based on the participant observation method, observing the night sky over a time of about one year with Bante Abbagala, a Borana expert in time reckoning. Differently from previous ethnographic accounts and hypotheses, the author suggests that the Borana implicitly add an intercalary month that allows keeping correspondence between season and the name of the lunar month, even if they do not acknowledge it. They do not consider the declination of the moon, sun or stars. They rather apply a complex devise that allows the direct evaluation of the relative right ascension po…

Predictable Dynamics in the Small Stock Premium

2014

We start this paper by providing a detailed study of how the mean monthly return on the Small-Minus-Big (SMB) Fama-French factor is affected by the January effect and the stock market return during the preceding month and preceding calendar year. We then proceed to building a predictive model for the monthly SMB factor return that incorporates the January effect and the dependence on both the market return during the preceding month and preceding calendar year. Our findings suggest that a positive small stock premium appears mainly during the years following the years with a negative return on the market as the result of a delayed and stronger reaction of small stocks to good news and a str…

Calendar Anomalies in Stock Index Futures

2011

There exist a large and increasing number of papers that describe different calendar anomalies in stock markets. Although empirical evidence suggests that seasonal effects disappeared after the early 1990s, new studies and approaches assert the continuation of some anomalies in stock indexes. In this paper, we present a comprehensive study of 188 possible cyclical anomalies in S&P 500, DAX and Nikkei stock index futures contracts from 1991 to 2008. Frictions in futures markets, unlike spot markets frictions, make it feasible to produce economically significant profits from trading rules based on calendar effects. By applying a percentile-t-bootstrap and Monte Carlo methods, our analysis rev…

Rebolucion del año mil seyscientos cinquenta, y vno / Compuesta por Don Pedro Mercader, y Caspe ..

1651

Grav. xil. a port. Sig.: A6

Destierro merecido de opiniones equivocadas, y justamente deseada nueva correccion de tiempos, y desengaño descubierto en literales expressiones de l…

Sig. [ ]1, [calderó]4, A-P2, A-M4, N2 Grav. xil. - El grav. de la f. de làm. calc Reclams. - Text amb postil·les marginals

Calendarium perpetuu[m] et generale breuiarii romani, ex decreto Sacrosancti Concilii Tridentini nuper editi, triginta sex tabulis constans pro tota …

1578

Sign.: *-****8, []2, A-Z8, Aa-Zz8, Aaa-Qqq8, A-F8, G4 Port. a dues tintes i amb grav. xil.